Index: kernel/genarch/Makefile.inc =================================================================== --- kernel/genarch/Makefile.inc (revision a14f3465b7d65eb909b06cf7a9a15f60743bcabe) +++ kernel/genarch/Makefile.inc (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -106,7 +106,17 @@ endif +ifeq ($(CONFIG_AM335X_UART),y) + GENARCH_SOURCES += \ + genarch/src/drivers/am335x/uart.c +endif + +ifeq ($(CONFIG_AM335X_TIMERS),y) + GENARCH_SOURCES += \ + genarch/src/drivers/am335x/timer.c +endif + ifeq ($(CONFIG_AMDM37X_UART),y) GENARCH_SOURCES += \ - genarch/src/drivers/amdm37x_uart/amdm37x_uart.c + genarch/src/drivers/amdm37x/uart.c endif Index: kernel/genarch/include/drivers/am335x/iomux.h =================================================================== --- kernel/genarch/include/drivers/am335x/iomux.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/iomux.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,268 @@ +/* + * Copyright (c) 2012 Matteo Facchinetti + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x CONTROL_MODULE: I/O multiplexing. + */ + +#ifndef KERN_AM335X_IOMUX_H_ +#define KERN_AM335X_IOMUX_H_ + +#include + +/* Pad Control Register for each configurable pin p. 876 */ +#define AM335X_IOMUX_SLEWRATE_SLOW_FLAG (1 << 6) +#define AM335X_IOMUX_RX_ENABLE_FLAG (1 << 5) +#define AM335X_IOMUX_PULLUP_FLAG (1 << 4) +#define AM335X_IOMUX_PULLUPDOWN_ENABLE_FLAG (1 << 3) +#define AM335X_IOMUX_MODE0 0 +#define AM335X_IOMUX_MODE1 1 +#define AM335X_IOMUX_MODE2 2 +#define AM335X_IOMUX_MODE3 3 +#define AM335X_IOMUX_MODE4 4 +#define AM335X_IOMUX_MODE5 5 +#define AM335X_IOMUX_MODE6 6 +#define AM335X_IOMUX_MODE7 7 + +/* AM335X CONTROL_MODULE configurable I/O pin. Table 9-10 at p. 886 */ +#define AM335X_IOMUX_CONF_BASE_ADDRESS 0x44E10800 + +typedef struct { + ioport32_t gpmc_ad1; + ioport32_t gpmc_ad2; + ioport32_t gpmc_ad3; + ioport32_t gpmc_ad4; + ioport32_t gpmc_ad5; + ioport32_t gpmc_ad6; + ioport32_t gpmc_ad7; + ioport32_t gpmc_ad8; + ioport32_t gpmc_ad9; + ioport32_t gpmc_ad10; + ioport32_t gpmc_ad11; + ioport32_t gpmc_ad12; + ioport32_t gpmc_ad13; + ioport32_t gpmc_ad14; + ioport32_t gpmc_ad15; + ioport32_t gpmc_a0; + ioport32_t gpmc_a1; + ioport32_t gpmc_a2; + ioport32_t gpmc_a3; + ioport32_t gpmc_a4; + ioport32_t gpmc_a5; + ioport32_t gpmc_a6; + ioport32_t gpmc_a7; + ioport32_t gpmc_a8; + ioport32_t gpmc_a9; + ioport32_t gpmc_a10; + ioport32_t gpmc_a11; + ioport32_t gpmc_wait0; + ioport32_t gpmc_wpn; + ioport32_t gpmc_be1n; + ioport32_t gpmc_csn0; + ioport32_t gpmc_csn1; + ioport32_t gpmc_csn2; + ioport32_t gpmc_csn3; + ioport32_t gpmc_clk; + ioport32_t gpmc_advn_ale; + ioport32_t gpmc_oen_ren; + ioport32_t gpmc_wen; + ioport32_t gpmc_be0n_cle; + ioport32_t lcd_data0; + ioport32_t lcd_data1; + ioport32_t lcd_data2; + ioport32_t lcd_data3; + ioport32_t lcd_data4; + ioport32_t lcd_data5; + ioport32_t lcd_data6; + ioport32_t lcd_data7; + ioport32_t lcd_data8; + ioport32_t lcd_data9; + ioport32_t lcd_data10; + ioport32_t lcd_data11; + ioport32_t lcd_data12; + ioport32_t lcd_data13; + ioport32_t lcd_data14; + ioport32_t lcd_data15; + ioport32_t lcd_vsync; + ioport32_t lcd_hsync; + ioport32_t lcd_pclk; + ioport32_t lcd_ac_bias_en; + ioport32_t mmc0_dat3; + ioport32_t mmc0_dat2; + ioport32_t mmc0_dat1; + ioport32_t mmc0_dat0; + ioport32_t mmc0_clk; + ioport32_t mmc0_cmd; + ioport32_t mii1_col; + ioport32_t mii1_crs; + ioport32_t mii1_rxerr; + ioport32_t mii1_txen; + ioport32_t mii1_rxdv; + ioport32_t mii1_txd3; + ioport32_t mii1_txd2; + ioport32_t mii1_txd1; + ioport32_t mii1_txd0; + ioport32_t mii1_txclk; + ioport32_t mii1_rxclk; + ioport32_t mii1_rxd3; + ioport32_t mii1_rxd2; + ioport32_t mii1_rxd1; + ioport32_t mii1_rxd0; + ioport32_t rmii1_refclk; + ioport32_t mdio_data; + ioport32_t mdio_clk; + ioport32_t spi0_sclk; + ioport32_t spi0_d0; + ioport32_t spi0_d1; + ioport32_t spi0_cs0; + ioport32_t spi0_cs1; + ioport32_t ecap0_in_pwm0_out; + ioport32_t uart0_ctsn; + ioport32_t uart0_rtsn; + ioport32_t uart0_rxd; + ioport32_t uart0_txd; + ioport32_t uart1_ctsn; + ioport32_t uart1_rtsn; + ioport32_t uart1_rxd; + ioport32_t uart1_txd; + ioport32_t i2c0_sda; + ioport32_t i2c0_scl; + ioport32_t mcasp0_aclkx; + ioport32_t mcasp0_fsx; + ioport32_t mcasp0_axr0; + ioport32_t mcasp0_ahclkr; + ioport32_t mcasp0_aclkr; + ioport32_t mcasp0_fsr; + ioport32_t mcasp0_axr1; + ioport32_t mcasp0_ahclkx; + ioport32_t xdma_event_intr0; + ioport32_t xdma_event_intr1; + ioport32_t nresetin_out; + ioport32_t porz; + ioport32_t nnmi; + ioport32_t osc0_in; + ioport32_t osc0_out; + ioport32_t osc0_vss; + ioport32_t tms; + ioport32_t tdi; + ioport32_t tdo; + ioport32_t tck; + ioport32_t ntrst; + ioport32_t emu0; + ioport32_t emu1; + ioport32_t osc1_in; + ioport32_t osc1_out; + ioport32_t osc1_vss; + ioport32_t rtc_porz; + ioport32_t pmic_power_en; + ioport32_t ext_wakeup; + ioport32_t enz_kaldo_1p8v; + ioport32_t usb0_dm; + ioport32_t usb0_dp; + ioport32_t usb0_ce; + ioport32_t usb0_id; + ioport32_t usb0_vbus; + ioport32_t usb0_drvvbus; + ioport32_t usb1_dm; + ioport32_t usb1_dp; + ioport32_t usb1_ce; + ioport32_t usb1_id; + ioport32_t usb1_vbus; + ioport32_t usb1_drvvbus; + ioport32_t ddr_resetn; + ioport32_t ddr_csn0; + ioport32_t ddr_cke; + ioport32_t ddr_ck; + ioport32_t ddr_nck; + ioport32_t ddr_casn; + ioport32_t ddr_rasn; + ioport32_t ddr_wen; + ioport32_t ddr_ba0; + ioport32_t ddr_ba1; + ioport32_t ddr_ba2; + ioport32_t ddr_a0; + ioport32_t ddr_a1; + ioport32_t ddr_a2; + ioport32_t ddr_a3; + ioport32_t ddr_a4; + ioport32_t ddr_a5; + ioport32_t ddr_a6; + ioport32_t ddr_a7; + ioport32_t ddr_a8; + ioport32_t ddr_a9; + ioport32_t ddr_a10; + ioport32_t ddr_a11; + ioport32_t ddr_a12; + ioport32_t ddr_a13; + ioport32_t ddr_a14; + ioport32_t ddr_a15; + ioport32_t ddr_odt; + ioport32_t ddr_d0; + ioport32_t ddr_d1; + ioport32_t ddr_d2; + ioport32_t ddr_d3; + ioport32_t ddr_d4; + ioport32_t ddr_d5; + ioport32_t ddr_d6; + ioport32_t ddr_d7; + ioport32_t ddr_d8; + ioport32_t ddr_d9; + ioport32_t ddr_d10; + ioport32_t ddr_d11; + ioport32_t ddr_d12; + ioport32_t ddr_d13; + ioport32_t ddr_d14; + ioport32_t ddr_d15; + ioport32_t ddr_dqm0; + ioport32_t ddr_dqm1; + ioport32_t ddr_dqs0; + ioport32_t ddr_dqsn0; + ioport32_t ddr_dqs1; + ioport32_t ddr_dqsn1; + ioport32_t ddr_vref; + ioport32_t ddr_vtp; + ioport32_t ain7; + ioport32_t ain6; + ioport32_t ain5; + ioport32_t ain4; + ioport32_t ain3; + ioport32_t ain2; + ioport32_t ain1; + ioport32_t ain0; + ioport32_t vrefp; + ioport32_t vrefn; + ioport32_t avdd; + ioport32_t avss; + ioport32_t iforce; + ioport32_t vsense; + ioport32_t testout; +} am335x_iomux_conf_regs_t; +#endif /* KERN_AM335X_IOMUX_H_ */ Index: kernel/genarch/include/drivers/am335x/irc.h =================================================================== --- kernel/genarch/include/drivers/am335x/irc.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/irc.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,255 @@ +/* + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ + +/** + * @file + * @brief Texas Instruments AM335x MPU on-chip interrupt controller driver. + */ + +#ifndef KERN_AM335x_IRQC_H_ +#define KERN_AM335x_IRQC_H_ + +#define AM335x_IRC_BASE_ADDRESS 0x48200000 +#define AM335x_IRC_SIZE 4096 + +#define AM335x_IRC_IRQ_COUNT 128 + +#include + +typedef struct { + const ioport32_t revision; +#define AM335x_IRC_REV_MASK 0xFF + + const uint8_t padd0[12]; + + /* This register controls the various parameters + * of the OCP interface. + */ + ioport32_t sysconfig; +#define AM335x_IRC_SYSCONFIG_AUTOIDLE_FLAG (1 << 0) +#define AM335x_IRC_SYSCONFIG_SOFTRESET_FLAG (1 << 1) + + /* This register provides status information about the module */ + const ioport32_t sysstatus; +#define AM335x_IRC_SYSSTATUS_RESET_DONE_FLAG (1 << 0) + + const uint8_t padd1[40]; + + /* This register supplies the currently active IRQ interrupt number */ + ioport32_t sir_irq; +#define AM335x_IRC_SIR_IRQ_ACTIVEIRQ_MASK 0x7F +#define AM335x_IRC_SIR_IRQ_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 + + /* This register supplies the currently active FIQ interrupt number */ + const ioport32_t sir_fiq; +#define AM335x_IRC_FIQ_IRQ_ACTIVEFIQ_MASK 0x7F +#define AM335x_IRC_FIQ_IRQ_SPURIOUSFIQFLAG_MASK 0xFFFFFFF8 + + /* This register contains the new interrupt agreement bits */ + ioport32_t control; +#define AM335x_IRC_CONTROL_NEWIRQAGR_FLAG (1 << 0) +#define AM335x_IRC_CONTROL_NEWFIQAGR_FLAG (1 << 1) + + /* This register controls protection of the other registers. + * This register can only be accessed in priviledged mode, regardless + * of the current value of the protection bit. + */ + ioport32_t protection; +#define AM335x_IRC_PROTECTION_FLAG (1 << 0) + + /* This register controls the clock auto-idle for the functional + * clock and the input synchronizers. + */ + ioport32_t idle; +#define AM335x_IRC_IDLE_FUNCIDLE_FLAG (1 << 0) +#define AM335x_IRC_IDLE_TURBO_FLAG (1 << 1) + + const uint8_t padd2[12]; + + /* This register supplies the currently active IRQ priority level */ + const ioport32_t irq_priority; +#define AM335x_IRC_IRQ_PRIORITY_IRQPRIORITY_MASK 0x7F +#define AM335x_IRC_IRQ_PRIORITY_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 + + /* This register supplies the currently active FIQ priority level */ + const ioport32_t fiq_priority; +#define AM335x_IRC_FIQ_PRIORITY_FIQPRIORITY_MASK 0x7F +#define AM335x_IRC_FIQ_PRIORITY_SPURIOUSIRQFLAG_MASK 0xFFFFFFF8 + + /* This register sets the priority threshold */ + ioport32_t threshold; +#define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_MASK 0xFF +#define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_ENABLED 0x00 +#define AM335x_IRC_THRESHOLD_PRIORITYTHRESHOLD_DISABLED 0xFF + + const uint8_t padd[20]; + + struct { + /* Raw interrupt input status before masking */ + const ioport32_t itr; + + /* Interrupt mask */ + ioport32_t mir; + + /* This register is used to clear the interrupt mask bits, + * Write 1 clears the mask bit to 0. + */ + ioport32_t mir_clear; + + /* This register is used to set the interrupt mask bits, + * Write 1 sets the mask bit to 1. + */ + ioport32_t mir_set; + + /* This register is used to set the software interrupt bits, + * it is also used to read the current active software + * interrupts. + * Write 1 sets the software interrups bits to 1. + */ + ioport32_t isr_set; + + /* This register is used to clear the software interrups bits. + * Write 1 clears the software interrupt bits to 0. + */ + ioport32_t isr_clear; + + /* This register contains the IRQ status after masking. */ + const ioport32_t pending_irq; + + /* This register contains the FIQ status after masking. */ + const ioport32_t pending_fiq; + } interrupts[4]; + + /* These registers contain the priority for the interrups and + * the FIQ/IRQ steering. + */ + ioport32_t ilr[AM335x_IRC_IRQ_COUNT]; +/* 0 = Interrupt routed to IRQ, 1 = interrupt routed to FIQ */ +#define AM335x_IRC_ILR_FIQNIRQ_FLAG (1 << 0) +#define AM335x_IRC_ILR_PRIORITY_MASK 0x3F +#define AM335x_IRC_ILR_PRIORITY_SHIFT 2 + +} am335x_irc_regs_t; + +static inline void am335x_irc_init(am335x_irc_regs_t *regs) +{ + int i; + + /* Initialization sequence */ + + /* 1 - Program the SYSCONFIG register: if necessary, enable the + * autogating by setting the AUTOIDLE bit. + */ + regs->sysconfig &= ~AM335x_IRC_SYSCONFIG_AUTOIDLE_FLAG; + + /* 2 - Program the IDLE register: if necessary, disable functional + * clock autogating or enable synchronizer autogating by setting + * the FUNCIDLE bit or the TURBO bit accordingly. + */ + regs->idle &= ~AM335x_IRC_IDLE_FUNCIDLE_FLAG; + regs->idle &= ~AM335x_IRC_IDLE_TURBO_FLAG; + + /* 3 - Program ILRm register for each interrupt line: Assign a + * priority level and set the FIQNIRQ bit for an FIQ interrupt + * (by default, interrupts are mapped to IRQ and + * priority is 0 (highest). + */ + + for (i = 0; i < AM335x_IRC_IRQ_COUNT; ++i) + regs->ilr[i] = 0; + + /* 4 - Program the MIRn register: Enable interrupts (by default, + * all interrupt lines are masked). + */ + for (i = 0; i < 4; ++i) + regs->interrupts[i].mir_set = 0xFFFFFFFF; +} + +/** Get the currently active IRQ interrupt number + * + * @param regs Pointer to the irc memory mapped registers + * + * @return The active IRQ interrupt number + */ +static inline unsigned am335x_irc_inum_get(am335x_irc_regs_t *regs) +{ + return regs->sir_irq & AM335x_IRC_SIR_IRQ_ACTIVEIRQ_MASK; +} + +/** Reset IRQ output and enable new IRQ generation + * + * @param regs Pointer to the irc memory mapped registers + */ +static inline void am335x_irc_irq_ack(am335x_irc_regs_t *regs) +{ + regs->control = AM335x_IRC_CONTROL_NEWIRQAGR_FLAG; +} + +/** Reset FIQ output and enable new FIQ generation + * + * @param regs Pointer to the irc memory mapped registers + */ +static inline void am335x_irc_fiq_ack(am335x_irc_regs_t *regs) +{ + regs->control = AM335x_IRC_CONTROL_NEWFIQAGR_FLAG; +} + +/** Clear an interrupt mask bit + * + * @param regs Pointer to the irc memory mapped registers + * @param inum The interrupt to be enabled + */ +static inline void am335x_irc_enable(am335x_irc_regs_t *regs, unsigned inum) +{ + ASSERT(inum < AM335x_IRC_IRQ_COUNT); + const unsigned set = inum / 32; + const unsigned pos = inum % 32; + regs->interrupts[set].mir_clear = (1 << pos); +} + +/** Set an interrupt mask bit + * + * @param regs Pointer to the irc memory mapped registers + * @param inum The interrupt to be disabled + */ +static inline void am335x_irc_disable(am335x_irc_regs_t *regs, unsigned inum) +{ + ASSERT(inum < AM335x_IRC_IRQ_COUNT); + const unsigned set = inum / 32; + const unsigned pos = inum % 32; + regs->interrupts[set].mir_set = (1 << pos); +} + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/am335x/timer.h =================================================================== --- kernel/genarch/include/drivers/am335x/timer.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/timer.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x timer driver. + */ + +#ifndef _KERN_AM335X_TIMER_H_ +#define _KERN_AM335X_TIMER_H_ + +#include "timer_regs.h" + +#define AM335x_DMTIMER0_BASE_ADDRESS 0x44E05000 +#define AM335x_DMTIMER0_SIZE 4096 +#define AM335x_DMTIMER0_IRQ 66 + +#define AM335x_DMTIMER2_BASE_ADDRESS 0x48040000 +#define AM335x_DMTIMER2_SIZE 4096 +#define AM335x_DMTIMER2_IRQ 68 + +#define AM335x_DMTIMER3_BASE_ADDRESS 0x48042000 +#define AM335x_DMTIMER3_SIZE 4096 +#define AM335x_DMTIMER3_IRQ 69 + +#define AM335x_DMTIMER4_BASE_ADDRESS 0x48044000 +#define AM335x_DMTIMER4_SIZE 4096 +#define AM335x_DMTIMER4_IRQ 92 + +#define AM335x_DMTIMER5_BASE_ADDRESS 0x48046000 +#define AM335x_DMTIMER5_SIZE 4096 +#define AM335x_DMTIMER5_IRQ 93 + +#define AM335x_DMTIMER6_BASE_ADDRESS 0x48048000 +#define AM335x_DMTIMER6_SIZE 4096 +#define AM335x_DMTIMER6_IRQ 94 + +#define AM335x_DMTIMER7_BASE_ADDRESS 0x4804A000 +#define AM335x_DMTIMER7_SIZE 4096 +#define AM335x_DMTIMER7_IRQ 95 + +typedef enum { + DMTIMER0 = 0, + DMTIMER1_1MS, + DMTIMER2, + DMTIMER3, + DMTIMER4, + DMTIMER5, + DMTIMER6, + DMTIMER7, + + TIMERS_MAX +} am335x_timer_id_t; + +typedef struct am335x_timer { + am335x_timer_regs_t *regs; + am335x_timer_id_t id; +} am335x_timer_t; + +extern void am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id, + unsigned hz); +extern void am335x_timer_intr_ack(am335x_timer_t *timer); +extern void am335x_timer_reset(am335x_timer_t *timer); +extern void am335x_timer_start(am335x_timer_t *timer); +extern void am335x_timer_stop(am335x_timer_t *timer); + + +#endif + +/** + * @} + */ + Index: kernel/genarch/include/drivers/am335x/timer_regs.h =================================================================== --- kernel/genarch/include/drivers/am335x/timer_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/timer_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x DMTIMER memory mapped registers. + */ + +#ifndef _KERN_AM335X_TIMER_REGS_H_ +#define _KERN_AM335X_TIMER_REGS_H_ + +#include + +typedef struct am335x_timer_regs { + + /* This read only register contains the + * revision number of the module + */ + ioport32_t const tidr; +#define AM335x_TIMER_TIDR_MINOR_MASK 0x3F +#define AM335x_TIMER_TIDR_MINOR_SHIFT 0 +#define AM335x_TIMER_TIDR_CUSTOM_MASK 0x03 +#define AM335x_TIMER_TIDR_CUSTOM_SHIFT 6 +#define AM335x_TIMER_TIDR_MAJOR_MASK 0x07 +#define AM335x_TIMER_TIDR_MAJOR_SHIFT 8 +#define AM335x_TIMER_TIDR_RTL_MASK 0x1F +#define AM335x_TIMER_TIDR_RTL_SHIFT 11 +#define AM335x_TIMER_TIDR_FUNC_MASK 0xFFF +#define AM335x_TIMER_TIDR_FUNC_SHIFT 16 +#define AM335x_TIMER_TIDR_SCHEME_MASK 0x03 +#define AM335x_TIMER_TIDR_SCHEME_SHIFT 30 + + ioport32_t const pad1[3]; + + /* This register allows controlling various + * parameters of the OCP interface. + */ + ioport32_t tiocp_cfg; +#define AM335x_TIMER_TIOCPCFG_SOFTRESET_FLAG (1 << 0) +#define AM335x_TIMER_TIOCPCFG_EMUFREE_FLAG (1 << 1) + +#define AM335x_TIMER_TIOCPCFG_IDLEMODE_MASK 0x02 +#define AM335x_TIMER_TIOCPCFG_IDLEMODE_SHIFT 2 +# define AM335x_TIMER_TIOCCPCFG_IDLEMODE_FORCE 0x00 +# define AM335x_TIMER_TIOCCPCFG_IDLEMODE_DISABLED 0x01 +# define AM335x_TIMER_TIOCCPCFG_IDLEMODE_SMART 0x02 +# define AM335x_TIMER_TIOCCPCFG_IDLEMODE_SMART_WAKEUP 0x03 + + ioport32_t const pad2[4]; + + ioport32_t irqstatus_raw; +#define AM335x_TIMER_IRQSTATUS_RAW_MAT_FLAG (1 << 0) +#define AM335x_TIMER_IRQSTATUS_RAW_OVF_FLAG (1 << 1) +#define AM335x_TIMER_IRQSTATUS_RAW_TCAR_FLAG (1 << 2) + + ioport32_t irqstatus; +#define AM335x_TIMER_IRQSTATUS_MAT_FLAG (1 << 0) +#define AM335x_TIMER_IRQSTATUS_OVF_FLAG (1 << 1) +#define AM335x_TIMER_IRQSTATUS_TCAR_FLAG (1 << 2) + + ioport32_t irqenable_set; +#define AM335x_TIMER_IRQENABLE_SET_MAT_FLAG (1 << 0) +#define AM335x_TIMER_IRQENABLE_SET_OVF_FLAG (1 << 1) +#define AM335x_TIMER_IRQENABLE_SET_TCAR_FLAG (1 << 2) + + ioport32_t irqenable_clr; +#define AM335x_TIMER_IRQENABLE_CLR_MAT_FLAG (1 << 0) +#define AM335x_TIMER_IRQENABLE_CLR_OVF_FLAG (1 << 1) +#define AM335x_TIMER_IRQENABLE_CLR_TCAR_FLAG (1 << 2) + + /* Timer IRQ wakeup enable register */ + ioport32_t irqwakeen; +#define AM335x_TIMER_IRQWAKEEN_MAT_FLAG (1 << 0) +#define AM335x_TIMER_IRQWAKEEN_PVF_FLAG (1 << 1) +#define AM335x_TIMER_IRQWAKEEN_TCAR_FLAG (1 << 2) + + /* Timer control register */ + ioport32_t tclr; +#define AM335x_TIMER_TCLR_ST_FLAG (1 << 0) +#define AM335x_TIMER_TCLR_AR_FLAG (1 << 1) +#define AM335x_TIMER_TCLR_PTV_MASK 0x07 +#define AM335x_TIMER_TCLR_PTV_SHIFT 2 +#define AM335x_TIMER_TCLR_PRE_FLAG (1 << 5) +#define AM335x_TIMER_TCLR_CE_FLAG (1 << 6) +#define AM335x_TIMER_TCLR_SCPWM_FLAG (1 << 7) +#define AM335x_TIMER_TCLR_TCM_MASK 0x03 +#define AM335x_TIMER_TCLR_TCM_SHIFT 8 +#define AM335x_TIMER_TCLR_TGR_MASK 0x03 +#define AM335x_TIMER_TCLR_TGR_SHIFT 10 +#define AM335x_TIMER_TCLR_PT_FLAG (1 << 12) +#define AM335x_TIMER_TCLR_CAPT_MODE_FLAG (1 << 13) +#define AM335x_TIMER_TCLR_GPO_CFG_FLAG (1 << 14) + + /* Timer counter register */ + ioport32_t tcrr; + + /* Timer load register */ + ioport32_t tldr; + + /* Timer trigger register */ + ioport32_t const ttgr; + + /* Timer write posted status register */ + ioport32_t twps; +#define AM335x_TIMER_TWPS_PEND_TCLR (1 << 0) +#define AM335x_TIMER_TWPS_PEND_TCRR (1 << 1) +#define AM335x_TIMER_TWPS_PEND_TLDR (1 << 2) +#define AM335x_TIMER_TWPS_PEND_TTGR (1 << 3) +#define AM335x_TIMER_TWPS_PEND_TMAR (1 << 4) + + /* Timer match register */ + ioport32_t tmar; + + /* Timer capture register */ + ioport32_t tcar1; + + /* Timer synchronous interface control register */ + ioport32_t tsicr; +#define AM335x_TIMER_TSICR_SFT_FLAG (1 << 1) +#define AM335x_TIMER_TSICR_POSTED_FLAG (1 << 2) + + /* Timer capture register */ + ioport32_t tcar2; + +} am335x_timer_regs_t; + +#endif + +/** + * @} + */ + Index: kernel/genarch/include/drivers/am335x/uart.h =================================================================== --- kernel/genarch/include/drivers/am335x/uart.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/uart.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,81 @@ +/* + * Copyright (c) Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x UART driver. + */ + +#ifndef _KERN_AM335X_UART_H_ +#define _KERN_AM335X_UART_H_ + +#include "uart_regs.h" + +#define AM335x_UART0_BASE_ADDRESS 0x44E09000 +#define AM335x_UART0_SIZE 4096 +#define AM335x_UART0_IRQ 72 + +#define AM335x_UART1_BASE_ADDRESS 0x48022000 +#define AM335x_UART1_SIZE 4096 +#define AM335x_UART1_IRQ 73 + +#define AM335x_UART2_BASE_ADDRESS 0x48024000 +#define AM335x_UART2_SIZE 4096 +#define AM335x_UART2_IRQ 74 + +#define AM335x_UART3_BASE_ADDRESS 0x481A6000 +#define AM335x_UART3_SIZE 4096 +#define AM335x_UART3_IRQ 44 + +#define AM335x_UART4_BASE_ADDRESS 0x481A8000 +#define AM335x_UART4_SIZE 4096 +#define AM335x_UART4_IRQ 45 + +#define AM335x_UART5_BASE_ADDRESS 0x481AA000 +#define AM335x_UART5_SIZE 4096 +#define AM335x_UART5_IRQ 46 + +typedef struct { + am335x_uart_regs_t *regs; + indev_t *indev; + outdev_t outdev; + irq_t irq; +} am335x_uart_t; + + +bool am335x_uart_init(am335x_uart_t *, inr_t, uintptr_t, size_t); +void am335x_uart_input_wire(am335x_uart_t *, indev_t *); + +#endif + +/** + * @} + */ + Index: kernel/genarch/include/drivers/am335x/uart_regs.h =================================================================== --- kernel/genarch/include/drivers/am335x/uart_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/am335x/uart_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,431 @@ +/* + * Copyright (c) 2012 Jan Vesely + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x UART memory mapped registers. + */ + +#ifndef _KERN_AM335X_UART_REGS_H_ +#define _KERN_AM335X_UART_REGS_H_ + +#include +#include +#include + +typedef struct { + union { + /** Stores lower part of the 14-bit baud divisor */ + ioport32_t dll; +#define AM335x_UART_DLL_MASK (0xff) + + /** Receive holding register */ + const ioport32_t rhr; +#define AM335x_UART_RHR_MASK (0xff) + + /** Transmit holding register */ + ioport32_t thr; +#define AM335x_UART_THR_MASK (0xff) + }; + + union { + /** Stores higher part of the 14-bit baud divisor */ + ioport32_t dlh; +#define AM335x_UART_DLH_MASK (0x1f) + + /** Interrupt enable registers */ + ioport32_t ier; +#define AM335x_UART_IER_RHR_IRQ_FLAG (1 << 0) +#define AM335x_UART_IER_THR_IRQ_FLAG (1 << 1) +#define AM335x_UART_IER_LINE_STS_IRQ_FLAG (1 << 2) +#define AM335x_UART_IER_MODEM_STS_IRQ_FLAG (1 << 3) +#define AM335x_UART_IER_SLEEP_MODE_FLAG (1 << 4) +#define AM335x_UART_IER_XOFF_IRQ_FLAG (1 << 5) +#define AM335x_UART_IER_RTS_IRQ_FLAG (1 << 6) +#define AM335x_UART_IER_CTS_IRQ_FLAG (1 << 7) + +#define AM335x_CIR_IER_RHR_IRQ_FLAG (1 << 0) +#define AM335x_CIR_IER_THR_IRQ_FLAG (1 << 1) +#define AM335x_CIR_IER_RX_STOP_IRQ_FLAG (1 << 2) +#define AM335x_CIR_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) +#define AM335x_CIR_IER_TX_STS_IRQ_FLAG (1 << 5) + +#define AM335x_IRDA_IER_RHR_IRQ_FLAG (1 << 0) +#define AM335x_IRDA_IER_THR_IRQ_FLAG (1 << 1) +#define AM335x_IRDA_IER_LAST_RX_BYTE_IRQ_FLAG (1 << 2) +#define AM335x_IRDA_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) +#define AM335x_IRDA_IER_STS_FIFO_TRIG_IRQ_FLAG (1 << 4) +#define AM335x_IRDA_IER_TX_STS_IRQ_FLAG (1 << 5) +#define AM335x_IRDA_IER_LINE_STS_IRQ_FLAG (1 << 6) +#define AM335x_IRDA_IER_EOF_IRQ_FLAG (1 << 7) + }; + + union { + /** Interrupt identification register */ + const ioport32_t iir; +#define AM335x_UART_IIR_IRQ_PENDING_FLAG (1 << 0) +#define AM335x_UART_IIR_TYPE_MASK (0x1f) +#define AM335x_UART_IIR_TYPE_SHIFT (1) +#define AM335x_UART_IIR_FCR_MASK (0x3) +#define AM335x_UART_IIR_FCR_SHIFT (6) + +#define AM335x_CIR_IIR_RHR_IRQ_FLAG (1 << 0) +#define AM335x_CIR_IIR_THR_IRQ_FLAG (1 << 1) +#define AM335x_CIR_IIR_RX_STOP_IRQ_FLAG (1 << 2) +#define AM335x_CIR_IIR_RX_OE_IRQ_FLAG (1 << 3) +#define AM335x_CIR_IIR_TX_STS_IRQ_FLAG (1 << 5) + +#define AM335x_IRDA_IIR_RHR_IRQ_FLAG (1 << 0) +#define AM335x_IRDA_IIR_THR_IRQ_FLAG (1 << 1) +#define AM335x_IRDA_IIR_RX_FIFO_LB_IRQ_FLAG (1 << 2) +#define AM335x_IRDA_IIR_RX_OE_IRQ_FLAG (1 << 3) +#define AM335x_IRDA_IIR_STS_FIFO_IRQ_FLAG (1 << 4) +#define AM335x_IRDA_IIR_TX_STS_IRQ_FLAG (1 << 5) +#define AM335x_IRDA_IIR_LINE_STS_IRQ_FLAG (1 << 6) +#define AM335x_IRDA_IIR_EOF_IRQ_FLAG (1 << 7) + + /** FIFO control register */ + ioport32_t fcr; +#define AM335x_UART_FCR_FIFO_EN_FLAG (1 << 0) +#define AM335x_UART_FCR_RX_FIFO_CLR_FLAG (1 << 1) +#define AM335x_UART_FCR_TX_FIFO_CLR_FLAG (1 << 3) +#define AM335x_UART_FCR_DMA_MODE_FLAG (1 << 4) + +#define AM335x_UART_FCR_TX_FIFO_TRIG_MASK (0x3) +#define AM335x_UART_FCR_TX_FIFO_TRIG_SHIFT (4) + +#define AM335x_UART_FCR_RX_FIFO_TRIG_MASK (0x3) +#define AM335x_UART_FCR_RX_FIFO_TRIG_SHIFT (6) + + /** Enhanced feature register */ + ioport32_t efr; +#define AM335x_UART_EFR_SW_FLOW_CTRL_RX_MASK (0x3) +#define AM335x_UART_EFR_SW_FLOW_CTRL_RX_SHIFT (0) +#define AM335x_UART_EFR_SW_FLOW_CTRL_TX_MASK (0x3) +#define AM335x_UART_EFR_SW_FLOW_CTRL_TX_SHIFT (2) + +#define AM335x_UART_EFR_SW_FLOW_CTRL_NONE (0x0) +#define AM335x_UART_EFR_SW_FLOW_CTRL_X2 (0x1) +#define AM335x_UART_EFR_SW_FLOW_CTRL_X1 (0x2) +#define AM335x_UART_EFR_SW_FLOW_CTRL_XBOTH (0x3) + +#define AM335x_UART_EFR_ENH_FLAG (1 << 4) +#define AM335x_UART_EFR_SPEC_CHAR_FLAG (1 << 5) +#define AM335x_UART_EFR_AUTO_RTS_EN_FLAG (1 << 6) +#define AM335x_UART_EFR_AUTO_CTS_EN_FLAG (1 << 7) + }; + + /** Line control register */ + ioport32_t lcr; +#define AM335x_UART_LCR_CHAR_LENGTH_MASK (0x3) +#define AM335x_UART_LCR_CHAR_LENGTH_SHIFT (0) +#define AM335x_UART_LCR_CHAR_LENGTH_5BITS (0x0) +#define AM335x_UART_LCR_CHAR_LENGTH_6BITS (0x1) +#define AM335x_UART_LCR_CHAR_LENGTH_7BITS (0x2) +#define AM335x_UART_LCR_CHAR_LENGTH_8BITS (0x3) +#define AM335x_UART_LCR_NB_STOP_FLAG (1 << 2) +#define AM335x_UART_LCR_PARITY_EN_FLAG (1 << 3) +#define AM335x_UART_LCR_PARITY_TYPE1_FLAG (1 << 4) +#define AM335x_UART_LCR_PARITY_TYPE2_FLAG (1 << 5) +#define AM335x_UART_LCR_BREAK_EN_FLAG (1 << 6) +#define AM335x_UART_LCR_DIV_EN_FLAG (1 << 7) + + + union { + /** Modem control register */ + ioport32_t mcr; +#define AM335x_UART_MCR_DTR_FLAG (1 << 0) +#define AM335x_UART_MCR_RTS_FLAG (1 << 1) +#define AM335x_UART_MCR_RI_STS_CH_FLAG (1 << 2) +#define AM335x_UART_MCR_CD_STS_CH_FLAG (1 << 3) +#define AM335x_UART_MCR_LOOPBACK_EN_FLAG (1 << 4) +#define AM335x_UART_MCR_XON_EN_FLAG (1 << 5) +#define AM335x_UART_MCR_TCR_TLR_FLAG (1 << 6) + + /** UART: XON1 char, IRDA: ADDR1 address */ + ioport32_t xon1_addr1; +#define AM335x_UART_XON1_ADDR1_MASK (0xff) + }; + + union { + /** Line status register */ + const ioport32_t lsr; +#define AM335x_UART_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AM335x_UART_LSR_RX_OE_FLAG (1 << 1) +#define AM335x_UART_LSR_RX_PE_FLAG (1 << 2) +#define AM335x_UART_LSR_RX_FE_FLAG (1 << 3) +#define AM335x_UART_LSR_RX_BI_FLAG (1 << 4) +#define AM335x_UART_LSR_TX_FIFO_E_FLAG (1 << 5) +#define AM335x_UART_LSR_TX_SR_E_FLAG (1 << 6) +#define AM335x_UART_LSR_RX_FIFO_STS_FLAG (1 << 7) + +#define AM335x_CIR_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AM335x_CIR_LSR_RX_STOP_FLAG (1 << 5) +#define AM335x_CIR_LSR_THR_EMPTY_FLAG (1 << 7) + +#define AM335x_IRDA_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AM335x_IRDA_LSR_STS_FIFO_E_FLAG (1 << 1) +#define AM335x_IRDA_LSR_CRC_FLAG (1 << 2) +#define AM335x_IRDA_LSR_ABORT_FLAG (1 << 3) +#define AM335x_IRDA_LSR_FTL_FLAG (1 << 4) +#define AM335x_IRDA_LSR_RX_LAST_FLAG (1 << 5) +#define AM335x_IRDA_LSR_STS_FIFO_FULL_FLAG (1 << 6) +#define AM335x_IRDA_LSR_THR_EMPTY_FLAG (1 << 7) + + /** UART: XON2 char, IRDA: ADDR2 address */ + ioport32_t xon2_addr2; + }; + + union { + /** Modem status register */ + const ioport32_t msr; +#define AM335x_UART_MSR_CTS_STS_FLAG (1 << 0) +#define AM335x_UART_MSR_DSR_STS_FLAG (1 << 1) +#define AM335x_UART_MSR_RI_STS_FLAG (1 << 2) +#define AM335x_UART_MSR_DCD_STS_FLAG (1 << 3) +#define AM335x_UART_MSR_NCTS_STS_FLAG (1 << 4) +#define AM335x_UART_MSR_NDSR_STS_FLAG (1 << 5) +#define AM335x_UART_MSR_NRI_STS_FLAG (1 << 6) +#define AM335x_UART_MSR_NCD_STS_FLAG (1 << 7) + + /** Transmission control register */ + ioport32_t tcr; +#define AM335x_UART_TCR_FIFO_TRIG_MASK (0xf) +#define AM335x_UART_TCR_FIFO_TRIG_HALT_SHIFT (0) +#define AM335x_UART_TCR_FIFO_TRIG_START_SHIFT (4) + + /** UART: XOFF1 char */ + ioport32_t xoff1; +#define AM335x_UART_XOFF1_MASK (0xff) + }; + + union { + /* Scratchpad register, does nothing */ + ioport32_t spr; +#define AM335x_UART_SPR_MASK (0xff) + + /* Trigger level register */ + ioport32_t tlr; +#define AM335x_UART_TLR_LEVEL_MASK (0xf) +#define AM335x_UART_TLR_TX_FIFO_TRIG_SHIFT (0) +#define AM335x_UART_TLR_RX_FIFO_TRIG_SHIFT (4) + + /** UART: XOFF2 char */ + ioport32_t xoff2; +#define AM335x_UART_XOFF2_MASK (0xff) + }; + + /** Mode definition register. */ + ioport32_t mdr1; +#define AM335x_UART_MDR_MS_MASK (0x7) +#define AM335x_UART_MDR_MS_SHIFT (0) +#define AM335x_UART_MDR_MS_UART16 (0x0) +#define AM335x_UART_MDR_MS_SIR (0x1) +#define AM335x_UART_MDR_MS_UART16_AUTO (0x2) +#define AM335x_UART_MDR_MS_UART13 (0x3) +#define AM335x_UART_MDR_MS_MIR (0x4) +#define AM335x_UART_MDR_MS_FIR (0x5) +#define AM335x_UART_MDR_MS_CIR (0x6) +#define AM335x_UART_MDR_MS_DISABLE (0x7) + +#define AM335x_UART_MDR_IR_SLEEP_FLAG (1 << 3) +#define AM335x_UART_MDR_SET_TXIR_FLAG (1 << 4) +#define AM335x_UART_MDR_SCT_FLAG (1 << 5) +#define AM335x_UART_MDR_SIP_FLAG (1 << 6) +#define AM335x_UART_MDR_FRAME_END_MODE_FLAG (1 << 7) + + /** Mode definition register */ + ioport32_t mdr2; +#define AM335x_UART_MDR_IRTX_UNDERRUN_FLAG (1 << 0) +#define AM335x_UART_MDR_STS_FIFO_TRIG_MASK (0x3) +#define AM335x_UART_MDR_STS_FIFO_TRIG_SHIFT (1) +#define AM335x_UART_MDR_PULSE_SHAPING_FLAG (1 << 3) +#define AM335x_UART_MDR_CIR_PULSE_MODE_MASK (0x3) +#define AM335x_UART_MDR_CIR_PULSE_MODE_SHIFT (4) +#define AM335x_UART_MDR_IRRXINVERT_FLAG (1 << 6) + + union { + /** Status FIFO line status register (IrDA only) */ + const ioport32_t sflsr; +#define AM335x_IRDA_SFLSR_CRC_ERROR_FLAG (1 << 1) +#define AM335x_IRDA_SFLSR_ABORT_FLAG (1 << 2) +#define AM335x_IRDA_SFLSR_FTL_FLAG (1 << 3) +#define AM335x_IRDA_SFLSR_OE_FLAG (1 << 4) + + /** Transmit frame length low (IrDA only) */ + ioport32_t txfll; +#define AM335x_UART_TXFLL_MASK (0xff) + }; + + union { + /** Dummy register to restart TX or RX (IrDA only) */ + const ioport32_t resume; + /** Transmit frame length high (IrDA only) */ + ioport32_t txflh; +#define AM335x_UART_TXFLH_MASK (0xff) + }; + + union { + /** Status FIFO register low (IrDA only) */ + const ioport32_t sfregl; +#define AM335x_UART_SFREGL_MASK (0xff) + /** Received frame length low (IrDA only) */ + ioport32_t rxfll; +#define AM335x_UART_RXFLL_MASK (0xff) + }; + + union { + /** Status FIFO register high (IrDA only) */ + const ioport32_t sfregh; +#define AM335x_UART_SFREGH_MASK (0xf) + /** Received frame length high (IrDA only) */ + ioport32_t rxflh; +#define AM335x_UART_RXFLH_MASK (0xf) + }; + + union { + /** UART autobauding status register */ + const ioport32_t uasr; +#define AM335x_UART_UASR_SPEED_MASK (0x1f) +#define AM335x_UART_UASR_SPEED_SHIFT (0) +#define AM335x_UART_UASR_8BIT_CHAR_FLAG (1 << 5) +#define AM335x_UART_UASR_PARITY_MASK (0x3) +#define AM335x_UART_UASR_PARITY_SHIFT (6) + + /** BOF control register (IrDA only) */ + ioport32_t blr; +#define AM335x_IRDA_BLR_XBOF_TYPE_FLAG (1 << 6) +#define AM335x_IRDA_BLR_STS_FIFO_RESET (1 << 7) + }; + + /** Auxiliary control register (IrDA only) */ + ioport32_t acreg; +#define AM335x_IRDA_ACREG_EOT_EN_FLAG (1 << 0) +#define AM335x_IRDA_ACREG_ABORT_EN_FLAG (1 << 1) +#define AM335x_IRDA_ACREG_SCTX_EN_FLAG (1 << 2) +#define AM335x_IRDA_ACREG_SEND_SIP_FLAG (1 << 3) +#define AM335x_IRDA_ACREG_DIS_TX_UNDERRUN_FLAG (1 << 4) +#define AM335x_IRDA_ACREG_DIS_IR_RX_FLAG (1 << 5) +#define AM335x_IRDA_ACREG_SD_MOD_FLAG (1 << 6) +#define AM335x_IRDA_ACREG_PULSE_TYPE_FLAG (1 << 7) + + /** Supplementary control register */ + ioport32_t scr; +#define AM335x_UART_SCR_DMA_MODE_CTL_FLAG (1 << 0) +#define AM335x_UART_SCR_DMA_MODE_MASK (0x3) +#define AM335x_UART_SCR_DMA_MODE_SHIFT (1) +#define AM335x_UART_SCR_TX_EMPTY_CTL_IRQ_FLAG (1 << 3) +#define AM335x_UART_SCR_RX_CTS_WU_EN_FLAG (1 << 4) +#define AM335x_UART_SCR_TX_TRIG_GRANU1_FLAG (1 << 6) +#define AM335x_UART_SCR_RX_TRIG_GRANU1_FLAG (1 << 7) + + /** Supplementary status register */ + const ioport32_t ssr; +#define AM335x_UART_SSR_TX_FIFO_FULL_FLAG (1 << 0) +#define AM335x_UART_SSR_RX_CTS_WU_STS_FLAG (1 << 1) +#define AM335x_UART_SSR_DMA_COUNTER_RESET_FLAG (1 << 2) + + /** BOF Length register (IrDA only)*/ + ioport32_t eblr; +#define AM335x_IRDA_EBLR_DISABLED (0x00) +#define AM335x_IRDA_EBLR_RX_STOP_BITS(bits) (bits & 0xff) + + uint32_t padd0_; + + /** Module version register */ + const ioport32_t mvr; +#define AM335x_UART_MVR_MINOR_MASK (0xf) +#define AM335x_UART_MVR_MINOR_SHIFT (0) +#define AM335x_UART_MVR_MAJOR_MASK (0xf) +#define AM335x_UART_MVR_MAJOR_SHIFT (4) + + /** System configuration register */ + ioport32_t sysc; +#define AM335x_UART_SYSC_AUTOIDLE_FLAG (1 << 0) +#define AM335x_UART_SYSC_SOFTRESET_FLAG (1 << 1) +#define AM335x_UART_SYSC_ENWAKEUP_FLAG (1 << 2) +#define AM335x_UART_SYSC_IDLE_MODE_MASK (0x3) +#define AM335x_UART_SYSC_IDLE_MODE_SHIFT (3) +#define AM335x_UART_SYSC_IDLE_MODE_FORCE (0x0) +#define AM335x_UART_SYSC_IDLE_MODE_NO (0x1) +#define AM335x_UART_SYSC_IDLE_MODE_SMART (0x2) + + /** System status register */ + const ioport32_t syss; +#define AM335x_UART_SYSS_RESETDONE_FLAG (1 << 0) + + /** Wake-up enable register */ + ioport32_t wer; +#define AM335x_UART_WER_CTS_ACTIVITY_FLAG (1 << 0) +#define AM335x_UART_WER_RI_ACTIVITY_FLAG (1 << 2) +#define AM335x_UART_WER_RX_ACTIVITY_FLAG (1 << 4) +#define AM335x_UART_WER_RHR_IRQ_FLAG (1 << 5) +#define AM335x_UART_WER_RLS_IRQ_FLAG (1 << 6) +#define AM335x_UART_WER_TX_WAKEUP_EN_FLAG (1 << 7) + + /** Carrier frequency prescaler */ + ioport32_t cfps; +#define AM335x_UART_CFPS_MASK (0xff) + + /** Number of bytes in RX fifo */ + const ioport32_t rx_fifo_lvl; +#define AM335x_UART_RX_FIFO_LVL_MASK (0xff) + + /** Number of bytes in TX fifo */ + const ioport32_t tx_fifo_lvl; +#define AM335x_UART_TX_FIFO_LVL_MASK (0xff) + + /** RX/TX empty interrupts */ + ioport32_t ier2; +#define AM335x_UART_IER2_RX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 0) +#define AM335x_UART_IER2_TX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 1) + + /** RX/TX empty status */ + ioport32_t isr2; +#define AM335x_UART_ISR2_RX_FIFO_EMPTY_FLAG (1 << 0) +#define AM335x_UART_ISR2_TX_FIFO_EMPTY_FLAG (1 << 1) + + /** Set the sample per bit if non default frequency is used */ + ioport32_t freq_sel; +#define AM335x_UART_FREQ_SEL_MASK (0x000000FF) + + uint32_t padd2_[2]; + + /** Mode definition register 3 */ + ioport32_t mdr3; +#define AM335x_UART_MDR3_DIS_CIR_RX_DEMOD_FLAG (1 << 0) +} am335x_uart_regs_t; + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/amdm37x/gpt.h =================================================================== --- kernel/genarch/include/drivers/amdm37x/gpt.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/amdm37x/gpt.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,255 @@ +/* + * Copyright (c) 2012 Jan Vesely + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM/DM37x MPU general purpose timer driver. + */ + +#ifndef KERN_AMDM37x_GPT_H_ +#define KERN_AMDM37x_GPT_H_ + +#include +#include + +/* AMDM37x TRM p. 2740 */ +#define AMDM37x_GPT1_BASE_ADDRESS 0x48318000 +#define AMDM37x_GPT1_SIZE 4096 +#define AMDM37x_GPT1_IRQ 37 +#define AMDM37x_GPT2_BASE_ADDRESS 0x49032000 +#define AMDM37x_GPT2_SIZE 4096 +#define AMDM37x_GPT2_IRQ 38 +#define AMDM37x_GPT3_BASE_ADDRESS 0x49034000 +#define AMDM37x_GPT3_SIZE 4096 +#define AMDM37x_GPT3_IRQ 39 +#define AMDM37x_GPT4_BASE_ADDRESS 0x49036000 +#define AMDM37x_GPT4_SIZE 4096 +#define AMDM37x_GPT4_IRQ 40 +#define AMDM37x_GPT5_BASE_ADDRESS 0x49038000 +#define AMDM37x_GPT5_SIZE 4096 +#define AMDM37x_GPT5_IRQ 41 +#define AMDM37x_GPT6_BASE_ADDRESS 0x4903a000 +#define AMDM37x_GPT6_SIZE 4096 +#define AMDM37x_GPT6_IRQ 42 +#define AMDM37x_GPT7_BASE_ADDRESS 0x4903c000 +#define AMDM37x_GPT7_SIZE 4096 +#define AMDM37x_GPT7_IRQ 43 +#define AMDM37x_GPT8_BASE_ADDRESS 0x4903e000 +#define AMDM37x_GPT8_SIZE 4096 +#define AMDM37x_GPT8_IRQ 44 +#define AMDM37x_GPT9_BASE_ADDRESS 0x49040000 +#define AMDM37x_GPT9_SIZE 4096 +#define AMDM37x_GPT9_IRQ 45 +#define AMDM37x_GPT10_BASE_ADDRESS 0x48086000 +#define AMDM37x_GPT10_SIZE 4096 +#define AMDM37x_GPT10_IRQ 46 +#define AMDM37x_GPT11_BASE_ADDRESS 0x48088000 +#define AMDM37x_GPT11_SIZE 4096 +#define AMDM37x_GPT11_IRQ 47 + + +/** GPT register map AMDM37x TRM p. 2740 */ +typedef struct { + /** IP revision */ + const ioport32_t tidr; +#define AMDM37x_GPT_TIDR_MINOR_MASK (0xf) +#define AMDM37x_GPT_TIDR_MINOR_SHIFT (0) +#define AMDM37x_GPT_TIDR_MAJOR_MASK (0xf) +#define AMDM37x_GPT_TIDR_MAJOR_SHIFT (4) + uint32_t padd0_[3]; + + /** L4 Interface parameters */ + ioport32_t tiocp_cfg; +#define AMDM37x_GPT_TIOCP_CFG_AUTOIDLE_FLAG (1 << 0) +#define AMDM37x_GPT_TIOCP_CFG_SOFTRESET_FLAG (1 << 1) +#define AMDM37x_GPT_TIOCP_CFG_ENWAKEUP_FLAG (1 << 2) +#define AMDM37x_GPT_TIOCP_CFG_IDLEMODE_MASK (0x3) +#define AMDM37x_GPT_TIOCP_CFG_IDLEMODE_SHIFT (3) +#define AMDM37x_GPT_TIOCP_CFG_EMUFREE_FlAG (1 << 5) +#define AMDM37x_GPT_TIOCP_CFG_CLOCKACTIVITY_MASK (0x3) +#define AMDM37x_GPT_TIOCP_CFG_CLOCKACTIVITY_SHIFT (8) + + /** Module status information, excluding irq */ + const ioport32_t tistat; +#define AMDM37x_GPT_TISTAT_RESET_DONE_FLAG (1 << 0) + + /** Interrupt status register */ + ioport32_t tisr; +#define AMDM37x_GPT_TISR_MAT_IRQ_FLAG (1 << 0) +#define AMDM37x_GPT_TISR_OVF_IRQ_FLAG (1 << 1) +#define AMDM37x_GPT_TISR_TCAR_IRQ_FLAG (1 << 2) + + /* Interrupt enable register */ + ioport32_t tier; +#define AMDM37x_GPT_TIER_MAT_IRQ_FLAG (1 << 0) +#define AMDM37x_GPT_TIER_OVF_IRQ_FLAG (1 << 1) +#define AMDM37x_GPT_TIER_TCAR_IRQ_FLAG (1 << 2) + + /** Wakeup enable register */ + ioport32_t twer; +#define AMDM37x_GPT_TWER_MAT_IRQ_FLAG (1 << 0) +#define AMDM37x_GPT_TWER_OVF_IRQ_FLAG (1 << 1) +#define AMDM37x_GPT_TWER_TCAR_IRQ_FLAG (1 << 2) + + /** Optional features control register */ + ioport32_t tclr; +#define AMDM37x_GPT_TCLR_ST_FLAG (1 << 0) +#define AMDM37x_GPT_TCLR_AR_FLAG (1 << 1) +#define AMDM37x_GPT_TCLR_PTV_MASK (0x7) +#define AMDM37x_GPT_TCLR_PTV_SHIFT (2) +#define AMDM37x_GPT_TCLR_PRE_FLAG (1 << 5) +#define AMDM37x_GPT_TCLR_CE_FLAG (1 << 6) +#define AMDM37x_GPT_TCLR_SCPWM (1 << 7) +#define AMDM37x_GPT_TCLR_TCM_MASK (0x3) +#define AMDM37x_GPT_TCLR_TCM_SHIFT (8) +#define AMDM37x_GPT_TCLR_TRG_MASK (0x3) +#define AMDM37x_GPT_TCLR_TRG_SHIFT (10) +#define AMDM37x_GPT_TCLR_PT_FLAG (1 << 12) +#define AMDM37x_GPT_TCLR_CAPT_MODE_FLAG (1 << 13) +#define AMDM37x_GPT_TCLR_GPO_CFG_FLAG (1 << 14) + + /** Value of timer counter */ + ioport32_t tccr; + + /** Timer load register */ + ioport32_t tldr; + + /** Timer trigger register */ + ioport32_t ttgr; + + /** Write-posted pending register */ + const ioport32_t twps; +#define AMDM37x_GPT_TWPS_TCLR_FLAG (1 << 0) +#define AMDM37x_GPT_TWPS_TCRR_FLAG (1 << 1) +#define AMDM37x_GPT_TWPS_TLDR_FLAG (1 << 2) +#define AMDM37x_GPT_TWPS_TTGR_FLAG (1 << 3) +#define AMDM37x_GPT_TWPS_TMAR_FLAG (1 << 4) +#define AMDM37x_GPT_TWPS_TPIR_FLAG (1 << 5) +#define AMDM37x_GPT_TWPS_TNIR_FLAG (1 << 6) +#define AMDM37x_GPT_TWPS_TCVR_FLAG (1 << 7) +#define AMDM37x_GPT_TWPS_TOCR_FLAG (1 << 8) +#define AMDM37x_GPT_TWPS_TOWR_FLAG (1 << 9) + + /** Timer match register */ + ioport32_t tmar; + + /** Capture value 1 register */ + const ioport32_t tcar1; + + /** Software interface control register */ + ioport32_t tsicr; +#define AMDM37x_GPT_TSICR_SFT_FLAG (1 << 1) +#define AMDM37x_GPT_TSICR_POSTED_FLAG (1 << 2) + + /** Capture value 2 register */ + const ioport32_t tcar2; + + /* GPT1,2,10 only (used for 1ms time period generation)*/ + + /** Positive increment register */ + ioport32_t tpir; + + /** Negative increment register */ + ioport32_t tnir; + + /** Counter value register */ + ioport32_t tcvr; + + /** Mask the tick interrupt for selected number of ticks */ + ioport32_t tocr; + + /** Number of masked overflow interrupts */ + ioport32_t towr; +} amdm37x_gpt_regs_t; + +typedef struct { + amdm37x_gpt_regs_t *regs; + bool special_available; +} amdm37x_gpt_t; + +static inline void amdm37x_gpt_timer_ticks_init( + amdm37x_gpt_t* timer, uintptr_t ioregs, size_t iosize, unsigned hz) +{ + /* Set 32768 Hz clock as source */ + // TODO find a nicer way to setup 32kHz clock source for timer1 + // reg 0x48004C40 is CM_CLKSEL_WKUP see page 485 of the manual + ioport32_t *clksel = (void*) km_map(0x48004C40, 4, PAGE_NOT_CACHEABLE); + *clksel &= ~1; + km_unmap((uintptr_t)clksel, 4); + + ASSERT(timer); + /* Map control register */ + timer->regs = (void*) km_map(ioregs, iosize, PAGE_NOT_CACHEABLE); + + /* Set autoreload */ + timer->regs->tclr = AMDM37x_GPT_TCLR_AR_FLAG; + + timer->special_available = ( + (ioregs == AMDM37x_GPT1_BASE_ADDRESS) || + (ioregs == AMDM37x_GPT2_BASE_ADDRESS) || + (ioregs == AMDM37x_GPT10_BASE_ADDRESS)); + timer->regs->tldr = 0xffffffff - (32768 / hz) + 1; + timer->regs->tccr = 0xffffffff - (32768 / hz) + 1; + if (timer->special_available) { + /* Set values for according to formula (manual p. 2733) */ + /* Use temporary variables for easier debugging */ + const uint32_t tpir = + ((32768 / hz + 1) * 1000000) - (32768000L * (1000 / hz)); + const uint32_t tnir = + ((32768 / hz) * 1000000) - (32768000 * (1000 / hz)); + timer->regs->tpir = tpir; + timer->regs->tnir = tnir; + } + +} + +static inline void amdm37x_gpt_timer_ticks_start(amdm37x_gpt_t* timer) +{ + ASSERT(timer); + ASSERT(timer->regs); + /* Enable overflow interrupt */ + timer->regs->tier |= AMDM37x_GPT_TIER_OVF_IRQ_FLAG; + /* Start timer */ + timer->regs->tclr |= AMDM37x_GPT_TCLR_ST_FLAG; +} + +static inline void amdm37x_gpt_irq_ack(amdm37x_gpt_t* timer) +{ + ASSERT(timer); + ASSERT(timer->regs); + /* Clear all pending interrupts */ + timer->regs->tisr = timer->regs->tisr; +} + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/amdm37x/irc.h =================================================================== --- kernel/genarch/include/drivers/amdm37x/irc.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/amdm37x/irc.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,206 @@ +/* + * Copyright (c) 2012 Jan Vesely + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM/DM37x MPU on-chip interrupt controller driver. + */ + +#ifndef KERN_AMDM37x_IRQC_H_ +#define KERN_AMDM37x_IRQC_H_ + +/* AMDM37x TRM p. 1079 */ +#define AMDM37x_IRC_BASE_ADDRESS 0x48200000 +#define AMDM37x_IRC_SIZE 4096 + +#define AMDM37x_IRC_IRQ_COUNT 96 + +#include + +typedef struct { + const ioport32_t revision; /**< Revision */ +#define AMDM37x_IRC_REV_MASK (0xff) + + uint8_t padd0_[12]; + + ioport32_t sysconfig; /**< SYS config */ +#define AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG (1 << 0) +#define AMDM37x_IRC_SYSCONFIG_SOFTRESET_FLAG (1 << 1) + + const ioport32_t sysstatus; /**< SYS status */ +#define AMDM37x_IRC_SYSSTATUS_RESET_DONE_FLAG (1 << 0) + + uint8_t padd1_[40]; + + const ioport32_t sir_irq; /**< Currently active irq number */ +#define AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK (0x7f) +#define AMDM37x_IRC_SIR_IRQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) + + const ioport32_t sir_fiq; +#define AMDM37x_IRC_SIR_FIQ_ACTIVEIRQ_MASK (0x7f) +#define AMDM37x_IRC_SIR_FIQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) + + ioport32_t control; /**< New interrupt agreement. */ +#define AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG (1 << 0) +#define AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG (1 << 1) + + ioport32_t protection; /**< Protect other registers. */ +#define AMDM37x_IRC_PROTECTION_PROETCTION_FLAG (1 << 0) + + ioport32_t idle; /**< Idle and autogating */ +#define AMDM37x_IRC_IDLE_FUNCIDLE_FLAG (1 << 0) +#define AMDM37x_IRC_IDLE_TURBO_FLAG (1 << 1) + + uint8_t padd2_[12]; + + ioport32_t irq_priority; /**< Active IRQ priority */ +#define AMDM37x_IRC_IRQ_PRIORITY_IRQPRIORITY_MASK (0x7f) +#define AMDM37x_IRC_IRQ_PRIORITY_SPURIOUSIRQFLAG_MASK (0xfffffff8) + + ioport32_t fiq_priority; /**< Active FIQ priority */ +#define AMDM37x_IRC_FIQ_PRIORITY_FIQPRIORITY_MASK (0x7f) +#define AMDM37x_IRC_FIQ_PRIORITY_SPURIOUSFIQFLAG_MASK (0xfffffff8) + + ioport32_t threshold; /**< Priority threshold */ +#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_MASK (0xff) +#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_ENABLED (0x00) +#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_DISABLED (0xff) + + uint8_t padd3__[20]; + + struct { + const ioport32_t itr; /**< Interrupt input status before masking */ + ioport32_t mir; /**< Interrupt mask */ + ioport32_t mir_clear; /**< Clear mir mask bits */ + ioport32_t mir_set; /**< Set mir mask bits */ + ioport32_t isr_set; /**< Set software interrupt bits */ + ioport32_t isr_clear; /**< Clear software interrupt bits */ + const ioport32_t pending_irq; /**< IRQ status after masking */ + const ioport32_t pending_fiq; /**< FIQ status after masking */ + } interrupts[3]; + + uint8_t padd4_[32]; + + ioport32_t ilr[96]; /**< FIQ/IRQ steering */ +#define AMDM37x_IRC_ILR_FIQNIRQ (1 << 0) +#define AMDM37x_IRC_ILR_PRIORITY_MASK (0x3f) +#define AMDM37x_IRC_ILR_PRIORITY_SHIFT (2) + +} amdm37x_irc_regs_t; + +static inline void amdm37x_irc_dump(amdm37x_irc_regs_t *regs) +{ +#define DUMP_REG(name) \ + printf("%s %p(%x).\n", #name, ®s->name, regs->name); + + DUMP_REG(revision); + DUMP_REG(sysconfig); + DUMP_REG(sysstatus); + DUMP_REG(sir_irq); + DUMP_REG(sir_fiq); + DUMP_REG(control); + DUMP_REG(protection); + DUMP_REG(idle); + DUMP_REG(irq_priority); + DUMP_REG(fiq_priority); + DUMP_REG(threshold); + + for (int i = 0; i < 3; ++i) { + DUMP_REG(interrupts[i].itr); + DUMP_REG(interrupts[i].mir); + DUMP_REG(interrupts[i].isr_set); + DUMP_REG(interrupts[i].pending_irq); + DUMP_REG(interrupts[i].pending_fiq); + } + for (int i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { + DUMP_REG(ilr[i]); + } + +#undef DUMP_REG +} + +static inline void amdm37x_irc_init(amdm37x_irc_regs_t *regs) +{ + /* AMDM37x TRM sec 12.5.1 p. 2425 */ + /* Program system config register */ + //TODO enable this when you know the meaning + //regs->sysconfig |= AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG; + + /* Program idle register */ + //TODO enable this when you know the meaning + //regs->sysconfig |= AMDM37x_IRC_IDLE_TURBO_FLAG; + + /* Program ilr[m] assign priority, decide fiq */ + for (unsigned i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { + regs->ilr[i] = 0; /* highest prio(default) route to irq */ + } + + /* Disable all interrupts */ + regs->interrupts[0].mir_set = 0xffffffff; + regs->interrupts[1].mir_set = 0xffffffff; + regs->interrupts[2].mir_set = 0xffffffff; +} + +static inline unsigned amdm37x_irc_inum_get(amdm37x_irc_regs_t *regs) +{ + return regs->sir_irq & AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK; +} + +static inline void amdm37x_irc_irq_ack(amdm37x_irc_regs_t *regs) +{ + regs->control = AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG; +} + +static inline void amdm37x_irc_fiq_ack(amdm37x_irc_regs_t *regs) +{ + regs->control = AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG; +} + +static inline void amdm37x_irc_enable(amdm37x_irc_regs_t *regs, unsigned inum) +{ + ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); + const unsigned set = inum / 32; + const unsigned pos = inum % 32; + regs->interrupts[set].mir_clear = (1 << pos); +} + +static inline void amdm37x_irc_disable(amdm37x_irc_regs_t *regs, unsigned inum) +{ + ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); + const unsigned set = inum / 32; + const unsigned pos = inum % 32; + regs->interrupts[set].mir_set = (1 << pos); +} + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/amdm37x/uart.h =================================================================== --- kernel/genarch/include/drivers/amdm37x/uart.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/amdm37x/uart.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2012 Jan Vesely + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AMDM37x UART driver + */ + +#ifndef _AMDM37x_UART_H_ +#define _AMDM37x_UART_H_ + +#include "uart_regs.h" + +/* AMDM37x TRM p. 2950 */ +#define AMDM37x_UART1_BASE_ADDRESS 0x4806a000 +#define AMDM37x_UART1_SIZE 1024 +#define AMDM37x_UART1_IRQ 72 /* AMDM37x TRM p. 2418 */ + +#define AMDM37x_UART2_BASE_ADDRESS 0x4806b000 +#define AMDM37x_UART2_SIZE 1024 +#define AMDM37x_UART2_IRQ 73 /* AMDM37x TRM p. 2418 */ + +#define AMDM37x_UART3_BASE_ADDRESS 0x49020000 +#define AMDM37x_UART3_SIZE 1024 +#define AMDM37x_UART3_IRQ 74 /* AMDM37x TRM p. 2418 */ + +#define AMDM37x_UART4_BASE_ADDRESS 0x49042000 +#define AMDM37x_UART4_SIZE 1024 +#define AMDM37x_UART4_IRQ 80 /* AMDM37x TRM p. 2418 */ + +typedef struct { + amdm37x_uart_regs_t *regs; + indev_t *indev; + outdev_t outdev; + irq_t irq; +} amdm37x_uart_t; + + +bool amdm37x_uart_init(amdm37x_uart_t *, inr_t, uintptr_t, size_t); +void amdm37x_uart_input_wire(amdm37x_uart_t *, indev_t *); + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/amdm37x/uart_regs.h =================================================================== --- kernel/genarch/include/drivers/amdm37x/uart_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/include/drivers/amdm37x/uart_regs.h (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,431 @@ +/* + * Copyright (c) 2012 Jan Vesely + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AMDM37x UART memory mapped registers. + */ + +#ifndef KERN_AMDM37x_UART_H_ +#define KERN_AMDM37x_UART_H_ + +#include +#include +#include + +typedef struct { + union { + /** Stores lower part of the 14-bit baud divisor */ + ioport32_t dll; +#define AMDM37x_UART_DLL_MASK (0xff) + + /** Receive holding register */ + const ioport32_t rhr; +#define AMDM37x_UART_RHR_MASK (0xff) + + /** Transmit holding register */ + ioport32_t thr; +#define AMDM37x_UART_THR_MASK (0xff) + }; + + union { + /** Stores higher part of the 14-bit baud divisor */ + ioport32_t dlh; +#define AMDM37x_UART_DLH_MASK (0x1f) + + /** Interrupt enable registers */ + ioport32_t ier; +#define AMDM37x_UART_IER_RHR_IRQ_FLAG (1 << 0) +#define AMDM37x_UART_IER_THR_IRQ_FLAG (1 << 1) +#define AMDM37x_UART_IER_LINE_STS_IRQ_FLAG (1 << 2) +#define AMDM37x_UART_IER_MODEM_STS_IRQ_FLAG (1 << 3) +#define AMDM37x_UART_IER_SLEEP_MODE_FLAG (1 << 4) +#define AMDM37x_UART_IER_XOFF_IRQ_FLAG (1 << 5) +#define AMDM37x_UART_IER_RTS_IRQ_FLAG (1 << 6) +#define AMDM37x_UART_IER_CTS_IRQ_FLAG (1 << 7) + +#define AMDM37x_CIR_IER_RHR_IRQ_FLAG (1 << 0) +#define AMDM37x_CIR_IER_THR_IRQ_FLAG (1 << 1) +#define AMDM37x_CIR_IER_RX_STOP_IRQ_FLAG (1 << 2) +#define AMDM37x_CIR_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) +#define AMDM37x_CIR_IER_TX_STS_IRQ_FLAG (1 << 5) + +#define AMDM37x_IRDA_IER_RHR_IRQ_FLAG (1 << 0) +#define AMDM37x_IRDA_IER_THR_IRQ_FLAG (1 << 1) +#define AMDM37x_IRDA_IER_LAST_RX_BYTE_IRQ_FLAG (1 << 2) +#define AMDM37x_IRDA_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) +#define AMDM37x_IRDA_IER_STS_FIFO_TRIG_IRQ_FLAG (1 << 4) +#define AMDM37x_IRDA_IER_TX_STS_IRQ_FLAG (1 << 5) +#define AMDM37x_IRDA_IER_LINE_STS_IRQ_FLAG (1 << 6) +#define AMDM37x_IRDA_IER_EOF_IRQ_FLAG (1 << 7) + }; + + union { + /** Interrupt identification register */ + const ioport32_t iir; +#define AMDM37x_UART_IIR_IRQ_PENDING_FLAG (1 << 0) +#define AMDM37x_UART_IIR_TYPE_MASK (0x1f) +#define AMDM37x_UART_IIR_TYPE_SHIFT (1) +#define AMDM37x_UART_IIR_FCR_MASK (0x3) +#define AMDM37x_UART_IIR_FCR_SHIFT (6) + +#define AMDM37x_CIR_IIR_RHR_IRQ_FLAG (1 << 0) +#define AMDM37x_CIR_IIR_THR_IRQ_FLAG (1 << 1) +#define AMDM37x_CIR_IIR_RX_STOP_IRQ_FLAG (1 << 2) +#define AMDM37x_CIR_IIR_RX_OE_IRQ_FLAG (1 << 3) +#define AMDM37x_CIR_IIR_TX_STS_IRQ_FLAG (1 << 5) + +#define AMDM37x_IRDA_IIR_RHR_IRQ_FLAG (1 << 0) +#define AMDM37x_IRDA_IIR_THR_IRQ_FLAG (1 << 1) +#define AMDM37x_IRDA_IIR_RX_FIFO_LB_IRQ_FLAG (1 << 2) +#define AMDM37x_IRDA_IIR_RX_OE_IRQ_FLAG (1 << 3) +#define AMDM37x_IRDA_IIR_STS_FIFO_IRQ_FLAG (1 << 4) +#define AMDM37x_IRDA_IIR_TX_STS_IRQ_FLAG (1 << 5) +#define AMDM37x_IRDA_IIR_LINE_STS_IRQ_FLAG (1 << 6) +#define AMDM37x_IRDA_IIR_EOF_IRQ_FLAG (1 << 7) + + /** FIFO control register */ + ioport32_t fcr; +#define AMDM37x_UART_FCR_FIFO_EN_FLAG (1 << 0) +#define AMDM37x_UART_FCR_RX_FIFO_CLR_FLAG (1 << 1) +#define AMDM37x_UART_FCR_TX_FIFO_CLR_FLAG (1 << 3) +#define AMDM37x_UART_FCR_DMA_MODE_FLAG (1 << 4) + +#define AMDM37x_UART_FCR_TX_FIFO_TRIG_MASK (0x3) +#define AMDM37x_UART_FCR_TX_FIFO_TRIG_SHIFT (4) + +#define AMDM37x_UART_FCR_RX_FIFO_TRIG_MASK (0x3) +#define AMDM37x_UART_FCR_RX_FIFO_TRIG_SHIFT (6) + + /** Enhanced feature register */ + ioport32_t efr; +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_RX_MASK (0x3) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_RX_SHIFT (0) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_TX_MASK (0x3) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_TX_SHIFT (2) + +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_NONE (0x0) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_X2 (0x1) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_X1 (0x2) +#define AMDM37x_UART_EFR_SW_FLOW_CTRL_XBOTH (0x3) + +#define AMDM37x_UART_EFR_ENH_FLAG (1 << 4) +#define AMDM37x_UART_EFR_SPEC_CHAR_FLAG (1 << 5) +#define AMDM37x_UART_EFR_AUTO_RTS_EN_FLAG (1 << 6) +#define AMDM37x_UART_EFR_AUTO_CTS_EN_FLAG (1 << 7) + }; + + /** Line control register */ + ioport32_t lcr; +#define AMDM37x_UART_LCR_CHAR_LENGTH_MASK (0x3) +#define AMDM37x_UART_LCR_CHAR_LENGTH_SHIFT (0) +#define AMDM37x_UART_LCR_CHAR_LENGTH_5BITS (0x0) +#define AMDM37x_UART_LCR_CHAR_LENGTH_6BITS (0x1) +#define AMDM37x_UART_LCR_CHAR_LENGTH_7BITS (0x2) +#define AMDM37x_UART_LCR_CHAR_LENGTH_8BITS (0x3) +#define AMDM37x_UART_LCR_NB_STOP_FLAG (1 << 2) +#define AMDM37x_UART_LCR_PARITY_EN_FLAG (1 << 3) +#define AMDM37x_UART_LCR_PARITY_TYPE1_FLAG (1 << 4) +#define AMDM37x_UART_LCR_PARITY_TYPE2_FLAG (1 << 5) +#define AMDM37x_UART_LCR_BREAK_EN_FLAG (1 << 6) +#define AMDM37x_UART_LCR_DIV_EN_FLAG (1 << 7) + + + union { + /** Modem control register */ + ioport32_t mcr; +#define AMDM37x_UART_MCR_DTR_FLAG (1 << 0) +#define AMDM37x_UART_MCR_RTS_FLAG (1 << 1) +#define AMDM37x_UART_MCR_RI_STS_CH_FLAG (1 << 2) +#define AMDM37x_UART_MCR_CD_STS_CH_FLAG (1 << 3) +#define AMDM37x_UART_MCR_LOOPBACK_EN_FLAG (1 << 4) +#define AMDM37x_UART_MCR_XON_EN_FLAG (1 << 5) +#define AMDM37x_UART_MCR_TCR_TLR_FLAG (1 << 6) + + /** UART: XON1 char, IRDA: ADDR1 address */ + ioport32_t xon1_addr1; +#define AMDM37x_UART_XON1_ADDR1_MASK (0xff) + }; + + union { + /** Line status register */ + const ioport32_t lsr; +#define AMDM37x_UART_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AMDM37x_UART_LSR_RX_OE_FLAG (1 << 1) +#define AMDM37x_UART_LSR_RX_PE_FLAG (1 << 2) +#define AMDM37x_UART_LSR_RX_FE_FLAG (1 << 3) +#define AMDM37x_UART_LSR_RX_BI_FLAG (1 << 4) +#define AMDM37x_UART_LSR_TX_FIFO_E_FLAG (1 << 5) +#define AMDM37x_UART_LSR_TX_SR_E_FLAG (1 << 6) +#define AMDM37x_UART_LSR_RX_FIFO_STS_FLAG (1 << 7) + +#define AMDM37x_CIR_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AMDM37x_CIR_LSR_RX_STOP_FLAG (1 << 5) +#define AMDM37x_CIR_LSR_THR_EMPTY_FLAG (1 << 7) + +#define AMDM37x_IRDA_LSR_RX_FIFO_E_FLAG (1 << 0) +#define AMDM37x_IRDA_LSR_STS_FIFO_E_FLAG (1 << 1) +#define AMDM37x_IRDA_LSR_CRC_FLAG (1 << 2) +#define AMDM37x_IRDA_LSR_ABORT_FLAG (1 << 3) +#define AMDM37x_IRDA_LSR_FTL_FLAG (1 << 4) +#define AMDM37x_IRDA_LSR_RX_LAST_FLAG (1 << 5) +#define AMDM37x_IRDA_LSR_STS_FIFO_FULL_FLAG (1 << 6) +#define AMDM37x_IRDA_LSR_THR_EMPTY_FLAG (1 << 7) + + /** UART: XON2 char, IRDA: ADDR2 address */ + ioport32_t xon2_addr2; + }; + + union { + /** Modem status register */ + const ioport32_t msr; +#define AMDM37x_UART_MSR_CTS_STS_FLAG (1 << 0) +#define AMDM37x_UART_MSR_DSR_STS_FLAG (1 << 1) +#define AMDM37x_UART_MSR_RI_STS_FLAG (1 << 2) +#define AMDM37x_UART_MSR_DCD_STS_FLAG (1 << 3) +#define AMDM37x_UART_MSR_NCTS_STS_FLAG (1 << 4) +#define AMDM37x_UART_MSR_NDSR_STS_FLAG (1 << 5) +#define AMDM37x_UART_MSR_NRI_STS_FLAG (1 << 6) +#define AMDM37x_UART_MSR_NCD_STS_FLAG (1 << 7) + + /** Transmission control register */ + ioport32_t tcr; +#define AMDM37x_UART_TCR_FIFO_TRIG_MASK (0xf) +#define AMDM37x_UART_TCR_FIFO_TRIG_HALT_SHIFT (0) +#define AMDM37x_UART_TCR_FIFO_TRIG_START_SHIFT (4) + + /** UART: XOFF1 char */ + ioport32_t xoff1; +#define AMDM37x_UART_XOFF1_MASK (0xff) + }; + + union { + /* Scratchpad register, does nothing */ + ioport32_t spr; +#define AMDM37x_UART_SPR_MASK (0xff) + + /* Trigger level register */ + ioport32_t tlr; +#define AMDM37x_UART_TLR_LEVEL_MASK (0xf) +#define AMDM37x_UART_TLR_TX_FIFO_TRIG_SHIFT (0) +#define AMDM37x_UART_TLR_RX_FIFO_TRIG_SHIFT (4) + + /** UART: XOFF2 char */ + ioport32_t xoff2; +#define AMDM37x_UART_XOFF2_MASK (0xff) + }; + + /** Mode definition register. */ + ioport32_t mdr1; +#define AMDM37x_UART_MDR_MS_MASK (0x7) +#define AMDM37x_UART_MDR_MS_SHIFT (0) +#define AMDM37x_UART_MDR_MS_UART16 (0x0) +#define AMDM37x_UART_MDR_MS_SIR (0x1) +#define AMDM37x_UART_MDR_MS_UART16_AUTO (0x2) +#define AMDM37x_UART_MDR_MS_UART13 (0x3) +#define AMDM37x_UART_MDR_MS_MIR (0x4) +#define AMDM37x_UART_MDR_MS_FIR (0x5) +#define AMDM37x_UART_MDR_MS_CIR (0x6) +#define AMDM37x_UART_MDR_MS_DISABLE (0x7) + +#define AMDM37x_UART_MDR_IR_SLEEP_FLAG (1 << 3) +#define AMDM37x_UART_MDR_SET_TXIR_FLAG (1 << 4) +#define AMDM37x_UART_MDR_SCT_FLAG (1 << 5) +#define AMDM37x_UART_MDR_SIP_FLAG (1 << 6) +#define AMDM37x_UART_MDR_FRAME_END_MODE_FLAG (1 << 7) + + /** Mode definition register */ + ioport32_t mdr2; +#define AMDM37x_UART_MDR_IRTX_UNDERRUN_FLAG (1 << 0) +#define AMDM37x_UART_MDR_STS_FIFO_TRIG_MASK (0x3) +#define AMDM37x_UART_MDR_STS_FIFO_TRIG_SHIFT (1) +#define AMDM37x_UART_MDR_PULSE_SHAPING_FLAG (1 << 3) +#define AMDM37x_UART_MDR_CIR_PULSE_MODE_MASK (0x3) +#define AMDM37x_UART_MDR_CIR_PULSE_MODE_SHIFT (4) +#define AMDM37x_UART_MDR_IRRXINVERT_FLAG (1 << 6) + + + /* UART3 specific */ + union { + /** Status FIFO line status register (IrDA only) */ + const ioport32_t sflsr; +#define AMDM37x_IRDA_SFLSR_CRC_ERROR_FLAG (1 << 1) +#define AMDM37x_IRDA_SFLSR_ABORT_FLAG (1 << 2) +#define AMDM37x_IRDA_SFLSR_FTL_FLAG (1 << 3) +#define AMDM37x_IRDA_SFLSR_OE_FLAG (1 << 4) + + /** Transmit frame length low (IrDA only) */ + ioport32_t txfll; +#define AMDM37x_UART_TXFLL_MASK (0xff) + }; + + /* UART3 specific */ + union { + /** Dummy register to restart TX or RX (IrDA only) */ + const ioport32_t resume; + /** Transmit frame length high (IrDA only) */ + ioport32_t txflh; +#define AMDM37x_UART_TXFLH_MASK (0xff) + }; + + /* UART3 specific */ + union { + /** Status FIFO register low (IrDA only) */ + const ioport32_t sfregl; +#define AMDM37x_UART_SFREGL_MASK (0xff) + /** Received frame length low (IrDA only) */ + ioport32_t rxfll; +#define AMDM37x_UART_RXFLL_MASK (0xff) + }; + + /* UART3 specific */ + union { + /** Status FIFO register high (IrDA only) */ + const ioport32_t sfregh; +#define AMDM37x_UART_SFREGH_MASK (0xf) + /** Received frame length high (IrDA only) */ + ioport32_t rxflh; +#define AMDM37x_UART_RXFLH_MASK (0xf) + }; + + union { + /** UART autobauding status register */ + const ioport32_t uasr; +#define AMDM37x_UART_UASR_SPEED_MASK (0x1f) +#define AMDM37x_UART_UASR_SPEED_SHIFT (0) +#define AMDM37x_UART_UASR_8BIT_CHAR_FLAG (1 << 5) +#define AMDM37x_UART_UASR_PARITY_MASK (0x3) +#define AMDM37x_UART_UASR_PARITY_SHIFT (6) + + /** BOF control register (IrDA only) */ + ioport32_t blr; /* UART3 specific */ +#define AMDM37x_IRDA_BLR_XBOF_TYPE_FLAG (1 << 6) +#define AMDM37x_IRDA_BLR_STS_FIFO_RESET (1 << 7) + }; + + /** Auxiliary control register (IrDA only) */ + ioport32_t acreg; /* UART3 specific */ +#define AMDM37x_IRDA_ACREG_EOT_EN_FLAG (1 << 0) +#define AMDM37x_IRDA_ACREG_ABORT_EN_FLAG (1 << 1) +#define AMDM37x_IRDA_ACREG_SCTX_EN_FLAG (1 << 2) +#define AMDM37x_IRDA_ACREG_SEND_SIP_FLAG (1 << 3) +#define AMDM37x_IRDA_ACREG_DIS_TX_UNDERRUN_FLAG (1 << 4) +#define AMDM37x_IRDA_ACREG_DIS_IR_RX_FLAG (1 << 5) +#define AMDM37x_IRDA_ACREG_SD_MOD_FLAG (1 << 6) +#define AMDM37x_IRDA_ACREG_PULSE_TYPE_FLAG (1 << 7) + + /** Supplementary control register */ + ioport32_t scr; +#define AMDM37x_UART_SCR_DMA_MODE_CTL_FLAG (1 << 0) +#define AMDM37x_UART_SCR_DMA_MODE_MASK (0x3) +#define AMDM37x_UART_SCR_DMA_MODE_SHIFT (1) +#define AMDM37x_UART_SCR_TX_EMPTY_CTL_IRQ_FLAG (1 << 3) +#define AMDM37x_UART_SCR_RX_CTS_WU_EN_FLAG (1 << 4) +#define AMDM37x_UART_SCR_TX_TRIG_GRANU1_FLAG (1 << 6) +#define AMDM37x_UART_SCR_RX_TRIG_GRANU1_FLAG (1 << 7) + + /** Supplementary status register */ + const ioport32_t ssr; +#define AMDM37x_UART_SSR_TX_FIFO_FULL_FLAG (1 << 0) +#define AMDM37x_UART_SSR_RX_CTS_WU_STS_FLAG (1 << 1) +#define AMDM37x_UART_SSR_DMA_COUNTER_RESET_FLAG (1 << 2) + + /** BOF Length register (IrDA only)*/ + ioport32_t eblr; /* UART3 specific */ +#define AMDM37x_IRDA_EBLR_DISABLED (0x00) +#define AMDM37x_IRDA_EBLR_RX_STOP_BITS(bits) (bits & 0xff) + + uint32_t padd0_; + + /** Module version register */ + const ioport32_t mvr; +#define AMDM37x_UART_MVR_MINOR_MASK (0xf) +#define AMDM37x_UART_MVR_MINOR_SHIFT (0) +#define AMDM37x_UART_MVR_MAJOR_MASK (0xf) +#define AMDM37x_UART_MVR_MAJOR_SHIFT (4) + + /** System configuration register */ + ioport32_t sysc; +#define AMDM37x_UART_SYSC_AUTOIDLE_FLAG (1 << 0) +#define AMDM37x_UART_SYSC_SOFTRESET_FLAG (1 << 1) +#define AMDM37x_UART_SYSC_ENWAKEUP_FLAG (1 << 2) +#define AMDM37x_UART_SYSC_IDLE_MODE_MASK (0x3) +#define AMDM37x_UART_SYSC_IDLE_MODE_SHIFT (3) +#define AMDM37x_UART_SYSC_IDLE_MODE_FORCE (0x0) +#define AMDM37x_UART_SYSC_IDLE_MODE_NO (0x1) +#define AMDM37x_UART_SYSC_IDLE_MODE_SMART (0x2) + + /** System status register */ + const ioport32_t syss; +#define AMDM37x_UART_SYSS_RESETDONE_FLAG (1 << 0) + + /** Wake-up enable register */ + ioport32_t wer; +#define AMDM37x_UART_WER_CTS_ACTIVITY_FLAG (1 << 0) +#define AMDM37x_UART_WER_RI_ACTIVITY_FLAG (1 << 2) +#define AMDM37x_UART_WER_RX_ACTIVITY_FLAG (1 << 4) +#define AMDM37x_UART_WER_RHR_IRQ_FLAG (1 << 5) +#define AMDM37x_UART_WER_RLS_IRQ_FLAG (1 << 6) +#define AMDM37x_UART_WER_TX_WAKEUP_EN_FLAG (1 << 7) + + /** Carrier frequency prescaler */ + ioport32_t cfps; /* UART3 specific */ +#define AMDM37x_UART_CFPS_MASK (0xff) + + /** Number of bytes in RX fifo */ + const ioport32_t rx_fifo_lvl; +#define AMDM37x_UART_RX_FIFO_LVL_MASK (0xff) + + /** Number of bytes in TX fifo */ + const ioport32_t tx_fifo_lvl; +#define AMDM37x_UART_TX_FIFO_LVL_MASK (0xff) + + /** RX/TX empty interrupts */ + ioport32_t ier2; +#define AMDM37x_UART_IER2_RX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 0) +#define AMDM37x_UART_IER2_TX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 1) + + /** RX/TX empty status */ + ioport32_t isr2; +#define AMDM37x_UART_ISR2_RX_FIFO_EMPTY_FLAG (1 << 0) +#define AMDM37x_UART_ISR2_TX_FIFO_EMPTY_FLAG (1 << 1) + + uint32_t padd2_[3]; + + /** Mode definition register 3 */ + ioport32_t mdr3; +#define AMDM37x_UART_MDR3_DIS_CIR_RX_DEMOD_FLAG (1 << 0) +} amdm37x_uart_regs_t; + +#endif + +/** + * @} + */ Index: kernel/genarch/include/drivers/amdm37x_gpt/amdm37x_gpt.h =================================================================== --- kernel/genarch/include/drivers/amdm37x_gpt/amdm37x_gpt.h (revision a14f3465b7d65eb909b06cf7a9a15f60743bcabe) +++ (revision ) @@ -1,255 +1,0 @@ -/* - * Copyright (c) 2012 Jan Vesely - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -/** @addtogroup genarch - * @{ - */ -/** - * @file - * @brief Texas Instruments AM/DM37x MPU general purpose timer driver. - */ - -#ifndef KERN_AMDM37x_GPT_H_ -#define KERN_AMDM37x_GPT_H_ - -#include -#include - -/* AMDM37x TRM p. 2740 */ -#define AMDM37x_GPT1_BASE_ADDRESS 0x48318000 -#define AMDM37x_GPT1_SIZE 4096 -#define AMDM37x_GPT1_IRQ 37 -#define AMDM37x_GPT2_BASE_ADDRESS 0x49032000 -#define AMDM37x_GPT2_SIZE 4096 -#define AMDM37x_GPT2_IRQ 38 -#define AMDM37x_GPT3_BASE_ADDRESS 0x49034000 -#define AMDM37x_GPT3_SIZE 4096 -#define AMDM37x_GPT3_IRQ 39 -#define AMDM37x_GPT4_BASE_ADDRESS 0x49036000 -#define AMDM37x_GPT4_SIZE 4096 -#define AMDM37x_GPT4_IRQ 40 -#define AMDM37x_GPT5_BASE_ADDRESS 0x49038000 -#define AMDM37x_GPT5_SIZE 4096 -#define AMDM37x_GPT5_IRQ 41 -#define AMDM37x_GPT6_BASE_ADDRESS 0x4903a000 -#define AMDM37x_GPT6_SIZE 4096 -#define AMDM37x_GPT6_IRQ 42 -#define AMDM37x_GPT7_BASE_ADDRESS 0x4903c000 -#define AMDM37x_GPT7_SIZE 4096 -#define AMDM37x_GPT7_IRQ 43 -#define AMDM37x_GPT8_BASE_ADDRESS 0x4903e000 -#define AMDM37x_GPT8_SIZE 4096 -#define AMDM37x_GPT8_IRQ 44 -#define AMDM37x_GPT9_BASE_ADDRESS 0x49040000 -#define AMDM37x_GPT9_SIZE 4096 -#define AMDM37x_GPT9_IRQ 45 -#define AMDM37x_GPT10_BASE_ADDRESS 0x48086000 -#define AMDM37x_GPT10_SIZE 4096 -#define AMDM37x_GPT10_IRQ 46 -#define AMDM37x_GPT11_BASE_ADDRESS 0x48088000 -#define AMDM37x_GPT11_SIZE 4096 -#define AMDM37x_GPT11_IRQ 47 - - -/** GPT register map AMDM37x TRM p. 2740 */ -typedef struct { - /** IP revision */ - const ioport32_t tidr; -#define AMDM37x_GPT_TIDR_MINOR_MASK (0xf) -#define AMDM37x_GPT_TIDR_MINOR_SHIFT (0) -#define AMDM37x_GPT_TIDR_MAJOR_MASK (0xf) -#define AMDM37x_GPT_TIDR_MAJOR_SHIFT (4) - uint32_t padd0_[3]; - - /** L4 Interface parameters */ - ioport32_t tiocp_cfg; -#define AMDM37x_GPT_TIOCP_CFG_AUTOIDLE_FLAG (1 << 0) -#define AMDM37x_GPT_TIOCP_CFG_SOFTRESET_FLAG (1 << 1) -#define AMDM37x_GPT_TIOCP_CFG_ENWAKEUP_FLAG (1 << 2) -#define AMDM37x_GPT_TIOCP_CFG_IDLEMODE_MASK (0x3) -#define AMDM37x_GPT_TIOCP_CFG_IDLEMODE_SHIFT (3) -#define AMDM37x_GPT_TIOCP_CFG_EMUFREE_FlAG (1 << 5) -#define AMDM37x_GPT_TIOCP_CFG_CLOCKACTIVITY_MASK (0x3) -#define AMDM37x_GPT_TIOCP_CFG_CLOCKACTIVITY_SHIFT (8) - - /** Module status information, excluding irq */ - const ioport32_t tistat; -#define AMDM37x_GPT_TISTAT_RESET_DONE_FLAG (1 << 0) - - /** Interrupt status register */ - ioport32_t tisr; -#define AMDM37x_GPT_TISR_MAT_IRQ_FLAG (1 << 0) -#define AMDM37x_GPT_TISR_OVF_IRQ_FLAG (1 << 1) -#define AMDM37x_GPT_TISR_TCAR_IRQ_FLAG (1 << 2) - - /* Interrupt enable register */ - ioport32_t tier; -#define AMDM37x_GPT_TIER_MAT_IRQ_FLAG (1 << 0) -#define AMDM37x_GPT_TIER_OVF_IRQ_FLAG (1 << 1) -#define AMDM37x_GPT_TIER_TCAR_IRQ_FLAG (1 << 2) - - /** Wakeup enable register */ - ioport32_t twer; -#define AMDM37x_GPT_TWER_MAT_IRQ_FLAG (1 << 0) -#define AMDM37x_GPT_TWER_OVF_IRQ_FLAG (1 << 1) -#define AMDM37x_GPT_TWER_TCAR_IRQ_FLAG (1 << 2) - - /** Optional features control register */ - ioport32_t tclr; -#define AMDM37x_GPT_TCLR_ST_FLAG (1 << 0) -#define AMDM37x_GPT_TCLR_AR_FLAG (1 << 1) -#define AMDM37x_GPT_TCLR_PTV_MASK (0x7) -#define AMDM37x_GPT_TCLR_PTV_SHIFT (2) -#define AMDM37x_GPT_TCLR_PRE_FLAG (1 << 5) -#define AMDM37x_GPT_TCLR_CE_FLAG (1 << 6) -#define AMDM37x_GPT_TCLR_SCPWM (1 << 7) -#define AMDM37x_GPT_TCLR_TCM_MASK (0x3) -#define AMDM37x_GPT_TCLR_TCM_SHIFT (8) -#define AMDM37x_GPT_TCLR_TRG_MASK (0x3) -#define AMDM37x_GPT_TCLR_TRG_SHIFT (10) -#define AMDM37x_GPT_TCLR_PT_FLAG (1 << 12) -#define AMDM37x_GPT_TCLR_CAPT_MODE_FLAG (1 << 13) -#define AMDM37x_GPT_TCLR_GPO_CFG_FLAG (1 << 14) - - /** Value of timer counter */ - ioport32_t tccr; - - /** Timer load register */ - ioport32_t tldr; - - /** Timer trigger register */ - ioport32_t ttgr; - - /** Write-posted pending register */ - const ioport32_t twps; -#define AMDM37x_GPT_TWPS_TCLR_FLAG (1 << 0) -#define AMDM37x_GPT_TWPS_TCRR_FLAG (1 << 1) -#define AMDM37x_GPT_TWPS_TLDR_FLAG (1 << 2) -#define AMDM37x_GPT_TWPS_TTGR_FLAG (1 << 3) -#define AMDM37x_GPT_TWPS_TMAR_FLAG (1 << 4) -#define AMDM37x_GPT_TWPS_TPIR_FLAG (1 << 5) -#define AMDM37x_GPT_TWPS_TNIR_FLAG (1 << 6) -#define AMDM37x_GPT_TWPS_TCVR_FLAG (1 << 7) -#define AMDM37x_GPT_TWPS_TOCR_FLAG (1 << 8) -#define AMDM37x_GPT_TWPS_TOWR_FLAG (1 << 9) - - /** Timer match register */ - ioport32_t tmar; - - /** Capture value 1 register */ - const ioport32_t tcar1; - - /** Software interface control register */ - ioport32_t tsicr; -#define AMDM37x_GPT_TSICR_SFT_FLAG (1 << 1) -#define AMDM37x_GPT_TSICR_POSTED_FLAG (1 << 2) - - /** Capture value 2 register */ - const ioport32_t tcar2; - - /* GPT1,2,10 only (used for 1ms time period generation)*/ - - /** Positive increment register */ - ioport32_t tpir; - - /** Negative increment register */ - ioport32_t tnir; - - /** Counter value register */ - ioport32_t tcvr; - - /** Mask the tick interrupt for selected number of ticks */ - ioport32_t tocr; - - /** Number of masked overflow interrupts */ - ioport32_t towr; -} amdm37x_gpt_regs_t; - -typedef struct { - amdm37x_gpt_regs_t *regs; - bool special_available; -} amdm37x_gpt_t; - -static inline void amdm37x_gpt_timer_ticks_init( - amdm37x_gpt_t* timer, uintptr_t ioregs, size_t iosize, unsigned hz) -{ - /* Set 32768 Hz clock as source */ - // TODO find a nicer way to setup 32kHz clock source for timer1 - // reg 0x48004C40 is CM_CLKSEL_WKUP see page 485 of the manual - ioport32_t *clksel = (void*) km_map(0x48004C40, 4, PAGE_NOT_CACHEABLE); - *clksel &= ~1; - km_unmap((uintptr_t)clksel, 4); - - ASSERT(timer); - /* Map control register */ - timer->regs = (void*) km_map(ioregs, iosize, PAGE_NOT_CACHEABLE); - - /* Set autoreload */ - timer->regs->tclr = AMDM37x_GPT_TCLR_AR_FLAG; - - timer->special_available = ( - (ioregs == AMDM37x_GPT1_BASE_ADDRESS) || - (ioregs == AMDM37x_GPT2_BASE_ADDRESS) || - (ioregs == AMDM37x_GPT10_BASE_ADDRESS)); - timer->regs->tldr = 0xffffffff - (32768 / hz) + 1; - timer->regs->tccr = 0xffffffff - (32768 / hz) + 1; - if (timer->special_available) { - /* Set values for according to formula (manual p. 2733) */ - /* Use temporary variables for easier debugging */ - const uint32_t tpir = - ((32768 / hz + 1) * 1000000) - (32768000L * (1000 / hz)); - const uint32_t tnir = - ((32768 / hz) * 1000000) - (32768000 * (1000 / hz)); - timer->regs->tpir = tpir; - timer->regs->tnir = tnir; - } - -} - -static inline void amdm37x_gpt_timer_ticks_start(amdm37x_gpt_t* timer) -{ - ASSERT(timer); - ASSERT(timer->regs); - /* Enable overflow interrupt */ - timer->regs->tier |= AMDM37x_GPT_TIER_OVF_IRQ_FLAG; - /* Start timer */ - timer->regs->tclr |= AMDM37x_GPT_TCLR_ST_FLAG; -} - -static inline void amdm37x_gpt_irq_ack(amdm37x_gpt_t* timer) -{ - ASSERT(timer); - ASSERT(timer->regs); - /* Clear all pending interrupts */ - timer->regs->tisr = timer->regs->tisr; -} - -#endif - -/** - * @} - */ Index: kernel/genarch/include/drivers/amdm37x_irc/amdm37x_irc.h =================================================================== --- kernel/genarch/include/drivers/amdm37x_irc/amdm37x_irc.h (revision a14f3465b7d65eb909b06cf7a9a15f60743bcabe) +++ (revision ) @@ -1,206 +1,0 @@ -/* - * Copyright (c) 2012 Jan Vesely - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -/** @addtogroup genarch - * @{ - */ -/** - * @file - * @brief Texas Instruments AM/DM37x MPU on-chip interrupt controller driver. - */ - -#ifndef KERN_AMDM37x_IRQC_H_ -#define KERN_AMDM37x_IRQC_H_ - -/* AMDM37x TRM p. 1079 */ -#define AMDM37x_IRC_BASE_ADDRESS 0x48200000 -#define AMDM37x_IRC_SIZE 4096 - -#define AMDM37x_IRC_IRQ_COUNT 96 - -#include - -typedef struct { - const ioport32_t revision; /**< Revision */ -#define AMDM37x_IRC_REV_MASK (0xff) - - uint8_t padd0_[12]; - - ioport32_t sysconfig; /**< SYS config */ -#define AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG (1 << 0) -#define AMDM37x_IRC_SYSCONFIG_SOFTRESET_FLAG (1 << 1) - - const ioport32_t sysstatus; /**< SYS status */ -#define AMDM37x_IRC_SYSSTATUS_RESET_DONE_FLAG (1 << 0) - - uint8_t padd1_[40]; - - const ioport32_t sir_irq; /**< Currently active irq number */ -#define AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK (0x7f) -#define AMDM37x_IRC_SIR_IRQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) - - const ioport32_t sir_fiq; -#define AMDM37x_IRC_SIR_FIQ_ACTIVEIRQ_MASK (0x7f) -#define AMDM37x_IRC_SIR_FIQ_SPURIOUSIRQFLAG_MASK (0xfffffff8) - - ioport32_t control; /**< New interrupt agreement. */ -#define AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG (1 << 0) -#define AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG (1 << 1) - - ioport32_t protection; /**< Protect other registers. */ -#define AMDM37x_IRC_PROTECTION_PROETCTION_FLAG (1 << 0) - - ioport32_t idle; /**< Idle and autogating */ -#define AMDM37x_IRC_IDLE_FUNCIDLE_FLAG (1 << 0) -#define AMDM37x_IRC_IDLE_TURBO_FLAG (1 << 1) - - uint8_t padd2_[12]; - - ioport32_t irq_priority; /**< Active IRQ priority */ -#define AMDM37x_IRC_IRQ_PRIORITY_IRQPRIORITY_MASK (0x7f) -#define AMDM37x_IRC_IRQ_PRIORITY_SPURIOUSIRQFLAG_MASK (0xfffffff8) - - ioport32_t fiq_priority; /**< Active FIQ priority */ -#define AMDM37x_IRC_FIQ_PRIORITY_FIQPRIORITY_MASK (0x7f) -#define AMDM37x_IRC_FIQ_PRIORITY_SPURIOUSFIQFLAG_MASK (0xfffffff8) - - ioport32_t threshold; /**< Priority threshold */ -#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_MASK (0xff) -#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_ENABLED (0x00) -#define AMDM37x_IRC_THRESHOLD_PRIORITYTHRESHOLD_DISABLED (0xff) - - uint8_t padd3__[20]; - - struct { - const ioport32_t itr; /**< Interrupt input status before masking */ - ioport32_t mir; /**< Interrupt mask */ - ioport32_t mir_clear; /**< Clear mir mask bits */ - ioport32_t mir_set; /**< Set mir mask bits */ - ioport32_t isr_set; /**< Set software interrupt bits */ - ioport32_t isr_clear; /**< Clear software interrupt bits */ - const ioport32_t pending_irq; /**< IRQ status after masking */ - const ioport32_t pending_fiq; /**< FIQ status after masking */ - } interrupts[3]; - - uint8_t padd4_[32]; - - ioport32_t ilr[96]; /**< FIQ/IRQ steering */ -#define AMDM37x_IRC_ILR_FIQNIRQ (1 << 0) -#define AMDM37x_IRC_ILR_PRIORITY_MASK (0x3f) -#define AMDM37x_IRC_ILR_PRIORITY_SHIFT (2) - -} amdm37x_irc_regs_t; - -static inline void amdm37x_irc_dump(amdm37x_irc_regs_t *regs) -{ -#define DUMP_REG(name) \ - printf("%s %p(%x).\n", #name, ®s->name, regs->name); - - DUMP_REG(revision); - DUMP_REG(sysconfig); - DUMP_REG(sysstatus); - DUMP_REG(sir_irq); - DUMP_REG(sir_fiq); - DUMP_REG(control); - DUMP_REG(protection); - DUMP_REG(idle); - DUMP_REG(irq_priority); - DUMP_REG(fiq_priority); - DUMP_REG(threshold); - - for (int i = 0; i < 3; ++i) { - DUMP_REG(interrupts[i].itr); - DUMP_REG(interrupts[i].mir); - DUMP_REG(interrupts[i].isr_set); - DUMP_REG(interrupts[i].pending_irq); - DUMP_REG(interrupts[i].pending_fiq); - } - for (int i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { - DUMP_REG(ilr[i]); - } - -#undef DUMP_REG -} - -static inline void amdm37x_irc_init(amdm37x_irc_regs_t *regs) -{ - /* AMDM37x TRM sec 12.5.1 p. 2425 */ - /* Program system config register */ - //TODO enable this when you know the meaning - //regs->sysconfig |= AMDM37x_IRC_SYSCONFIG_AUTOIDLE_FLAG; - - /* Program idle register */ - //TODO enable this when you know the meaning - //regs->sysconfig |= AMDM37x_IRC_IDLE_TURBO_FLAG; - - /* Program ilr[m] assign priority, decide fiq */ - for (unsigned i = 0; i < AMDM37x_IRC_IRQ_COUNT; ++i) { - regs->ilr[i] = 0; /* highest prio(default) route to irq */ - } - - /* Disable all interrupts */ - regs->interrupts[0].mir_set = 0xffffffff; - regs->interrupts[1].mir_set = 0xffffffff; - regs->interrupts[2].mir_set = 0xffffffff; -} - -static inline unsigned amdm37x_irc_inum_get(amdm37x_irc_regs_t *regs) -{ - return regs->sir_irq & AMDM37x_IRC_SIR_IRQ_ACTIVEIRQ_MASK; -} - -static inline void amdm37x_irc_irq_ack(amdm37x_irc_regs_t *regs) -{ - regs->control = AMDM37x_IRC_CONTROL_NEWIRQAGR_FLAG; -} - -static inline void amdm37x_irc_fiq_ack(amdm37x_irc_regs_t *regs) -{ - regs->control = AMDM37x_IRC_CONTROL_NEWFIQAGR_FLAG; -} - -static inline void amdm37x_irc_enable(amdm37x_irc_regs_t *regs, unsigned inum) -{ - ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); - const unsigned set = inum / 32; - const unsigned pos = inum % 32; - regs->interrupts[set].mir_clear = (1 << pos); -} - -static inline void amdm37x_irc_disable(amdm37x_irc_regs_t *regs, unsigned inum) -{ - ASSERT(inum < AMDM37x_IRC_IRQ_COUNT); - const unsigned set = inum / 32; - const unsigned pos = inum % 32; - regs->interrupts[set].mir_set = (1 << pos); -} - -#endif - -/** - * @} - */ Index: kernel/genarch/include/drivers/amdm37x_uart/amdm37x_uart.h =================================================================== --- kernel/genarch/include/drivers/amdm37x_uart/amdm37x_uart.h (revision a14f3465b7d65eb909b06cf7a9a15f60743bcabe) +++ (revision ) @@ -1,459 +1,0 @@ -/* - * Copyright (c) 2012 Jan Vesely - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -/** @addtogroup genarch - * @{ - */ -/** - * @file - * @brief Texas Instruments AMDM37x on-chip interrupt controller driver. - */ - -#ifndef KERN_AMDM37x_UART_H_ -#define KERN_AMDM37x_UART_H_ - -#include -#include -#include - -/* AMDM37x TRM p. 2950 */ -#define AMDM37x_UART1_BASE_ADDRESS 0x4806a000 -#define AMDM37x_UART1_SIZE 1024 -#define AMDM37x_UART1_IRQ 72 /* AMDM37x TRM p. 2418 */ - -#define AMDM37x_UART2_BASE_ADDRESS 0x4806b000 -#define AMDM37x_UART2_SIZE 1024 -#define AMDM37x_UART2_IRQ 73 /* AMDM37x TRM p. 2418 */ - -#define AMDM37x_UART3_BASE_ADDRESS 0x49020000 -#define AMDM37x_UART3_SIZE 1024 -#define AMDM37x_UART3_IRQ 74 /* AMDM37x TRM p. 2418 */ - -#define AMDM37x_UART4_BASE_ADDRESS 0x49042000 -#define AMDM37x_UART4_SIZE 1024 -#define AMDM37x_UART4_IRQ 80 /* AMDM37x TRM p. 2418 */ - -typedef struct { - union { - /** Stores lower part of the 14-bit baud divisor */ - ioport32_t dll; -#define AMDM37x_UART_DLL_MASK (0xff) - - /** Receive holding register */ - const ioport32_t rhr; -#define AMDM37x_UART_RHR_MASK (0xff) - - /** Transmit holding register */ - ioport32_t thr; -#define AMDM37x_UART_THR_MASK (0xff) - }; - - union { - /** Stores higher part of the 14-bit baud divisor */ - ioport32_t dlh; -#define AMDM37x_UART_DLH_MASK (0x1f) - - /** Interrupt enable registers */ - ioport32_t ier; -#define AMDM37x_UART_IER_RHR_IRQ_FLAG (1 << 0) -#define AMDM37x_UART_IER_THR_IRQ_FLAG (1 << 1) -#define AMDM37x_UART_IER_LINE_STS_IRQ_FLAG (1 << 2) -#define AMDM37x_UART_IER_MODEM_STS_IRQ_FLAG (1 << 3) -#define AMDM37x_UART_IER_SLEEP_MODE_FLAG (1 << 4) -#define AMDM37x_UART_IER_XOFF_IRQ_FLAG (1 << 5) -#define AMDM37x_UART_IER_RTS_IRQ_FLAG (1 << 6) -#define AMDM37x_UART_IER_CTS_IRQ_FLAG (1 << 7) - -#define AMDM37x_CIR_IER_RHR_IRQ_FLAG (1 << 0) -#define AMDM37x_CIR_IER_THR_IRQ_FLAG (1 << 1) -#define AMDM37x_CIR_IER_RX_STOP_IRQ_FLAG (1 << 2) -#define AMDM37x_CIR_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) -#define AMDM37x_CIR_IER_TX_STS_IRQ_FLAG (1 << 5) - -#define AMDM37x_IRDA_IER_RHR_IRQ_FLAG (1 << 0) -#define AMDM37x_IRDA_IER_THR_IRQ_FLAG (1 << 1) -#define AMDM37x_IRDA_IER_LAST_RX_BYTE_IRQ_FLAG (1 << 2) -#define AMDM37x_IRDA_IER_RX_OVERRUN_IRQ_FLAG (1 << 3) -#define AMDM37x_IRDA_IER_STS_FIFO_TRIG_IRQ_FLAG (1 << 4) -#define AMDM37x_IRDA_IER_TX_STS_IRQ_FLAG (1 << 5) -#define AMDM37x_IRDA_IER_LINE_STS_IRQ_FLAG (1 << 6) -#define AMDM37x_IRDA_IER_EOF_IRQ_FLAG (1 << 7) - }; - - union { - /** Interrupt identification register */ - const ioport32_t iir; -#define AMDM37x_UART_IIR_IRQ_PENDING_FLAG (1 << 0) -#define AMDM37x_UART_IIR_TYPE_MASK (0x1f) -#define AMDM37x_UART_IIR_TYPE_SHIFT (1) -#define AMDM37x_UART_IIR_FCR_MASK (0x3) -#define AMDM37x_UART_IIR_FCR_SHIFT (6) - -#define AMDM37x_CIR_IIR_RHR_IRQ_FLAG (1 << 0) -#define AMDM37x_CIR_IIR_THR_IRQ_FLAG (1 << 1) -#define AMDM37x_CIR_IIR_RX_STOP_IRQ_FLAG (1 << 2) -#define AMDM37x_CIR_IIR_RX_OE_IRQ_FLAG (1 << 3) -#define AMDM37x_CIR_IIR_TX_STS_IRQ_FLAG (1 << 5) - -#define AMDM37x_IRDA_IIR_RHR_IRQ_FLAG (1 << 0) -#define AMDM37x_IRDA_IIR_THR_IRQ_FLAG (1 << 1) -#define AMDM37x_IRDA_IIR_RX_FIFO_LB_IRQ_FLAG (1 << 2) -#define AMDM37x_IRDA_IIR_RX_OE_IRQ_FLAG (1 << 3) -#define AMDM37x_IRDA_IIR_STS_FIFO_IRQ_FLAG (1 << 4) -#define AMDM37x_IRDA_IIR_TX_STS_IRQ_FLAG (1 << 5) -#define AMDM37x_IRDA_IIR_LINE_STS_IRQ_FLAG (1 << 6) -#define AMDM37x_IRDA_IIR_EOF_IRQ_FLAG (1 << 7) - - /** FIFO control register */ - ioport32_t fcr; -#define AMDM37x_UART_FCR_FIFO_EN_FLAG (1 << 0) -#define AMDM37x_UART_FCR_RX_FIFO_CLR_FLAG (1 << 1) -#define AMDM37x_UART_FCR_TX_FIFO_CLR_FLAG (1 << 3) -#define AMDM37x_UART_FCR_DMA_MODE_FLAG (1 << 4) - -#define AMDM37x_UART_FCR_TX_FIFO_TRIG_MASK (0x3) -#define AMDM37x_UART_FCR_TX_FIFO_TRIG_SHIFT (4) - -#define AMDM37x_UART_FCR_RX_FIFO_TRIG_MASK (0x3) -#define AMDM37x_UART_FCR_RX_FIFO_TRIG_SHIFT (6) - - /** Enhanced feature register */ - ioport32_t efr; -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_RX_MASK (0x3) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_RX_SHIFT (0) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_TX_MASK (0x3) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_TX_SHIFT (2) - -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_NONE (0x0) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_X2 (0x1) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_X1 (0x2) -#define AMDM37x_UART_EFR_SW_FLOW_CTRL_XBOTH (0x3) - -#define AMDM37x_UART_EFR_ENH_FLAG (1 << 4) -#define AMDM37x_UART_EFR_SPEC_CHAR_FLAG (1 << 5) -#define AMDM37x_UART_EFR_AUTO_RTS_EN_FLAG (1 << 6) -#define AMDM37x_UART_EFR_AUTO_CTS_EN_FLAG (1 << 7) - }; - - /** Line control register */ - ioport32_t lcr; -#define AMDM37x_UART_LCR_CHAR_LENGTH_MASK (0x3) -#define AMDM37x_UART_LCR_CHAR_LENGTH_SHIFT (0) -#define AMDM37x_UART_LCR_CHAR_LENGTH_5BITS (0x0) -#define AMDM37x_UART_LCR_CHAR_LENGTH_6BITS (0x1) -#define AMDM37x_UART_LCR_CHAR_LENGTH_7BITS (0x2) -#define AMDM37x_UART_LCR_CHAR_LENGTH_8BITS (0x3) -#define AMDM37x_UART_LCR_NB_STOP_FLAG (1 << 2) -#define AMDM37x_UART_LCR_PARITY_EN_FLAG (1 << 3) -#define AMDM37x_UART_LCR_PARITY_TYPE1_FLAG (1 << 4) -#define AMDM37x_UART_LCR_PARITY_TYPE2_FLAG (1 << 5) -#define AMDM37x_UART_LCR_BREAK_EN_FLAG (1 << 6) -#define AMDM37x_UART_LCR_DIV_EN_FLAG (1 << 7) - - - union { - /** Modem control register */ - ioport32_t mcr; -#define AMDM37x_UART_MCR_DTR_FLAG (1 << 0) -#define AMDM37x_UART_MCR_RTS_FLAG (1 << 1) -#define AMDM37x_UART_MCR_RI_STS_CH_FLAG (1 << 2) -#define AMDM37x_UART_MCR_CD_STS_CH_FLAG (1 << 3) -#define AMDM37x_UART_MCR_LOOPBACK_EN_FLAG (1 << 4) -#define AMDM37x_UART_MCR_XON_EN_FLAG (1 << 5) -#define AMDM37x_UART_MCR_TCR_TLR_FLAG (1 << 6) - - /** UART: XON1 char, IRDA: ADDR1 address */ - ioport32_t xon1_addr1; -#define AMDM37x_UART_XON1_ADDR1_MASK (0xff) - }; - - union { - /** Line status register */ - const ioport32_t lsr; -#define AMDM37x_UART_LSR_RX_FIFO_E_FLAG (1 << 0) -#define AMDM37x_UART_LSR_RX_OE_FLAG (1 << 1) -#define AMDM37x_UART_LSR_RX_PE_FLAG (1 << 2) -#define AMDM37x_UART_LSR_RX_FE_FLAG (1 << 3) -#define AMDM37x_UART_LSR_RX_BI_FLAG (1 << 4) -#define AMDM37x_UART_LSR_TX_FIFO_E_FLAG (1 << 5) -#define AMDM37x_UART_LSR_TX_SR_E_FLAG (1 << 6) -#define AMDM37x_UART_LSR_RX_FIFO_STS_FLAG (1 << 7) - -#define AMDM37x_CIR_LSR_RX_FIFO_E_FLAG (1 << 0) -#define AMDM37x_CIR_LSR_RX_STOP_FLAG (1 << 5) -#define AMDM37x_CIR_LSR_THR_EMPTY_FLAG (1 << 7) - -#define AMDM37x_IRDA_LSR_RX_FIFO_E_FLAG (1 << 0) -#define AMDM37x_IRDA_LSR_STS_FIFO_E_FLAG (1 << 1) -#define AMDM37x_IRDA_LSR_CRC_FLAG (1 << 2) -#define AMDM37x_IRDA_LSR_ABORT_FLAG (1 << 3) -#define AMDM37x_IRDA_LSR_FTL_FLAG (1 << 4) -#define AMDM37x_IRDA_LSR_RX_LAST_FLAG (1 << 5) -#define AMDM37x_IRDA_LSR_STS_FIFO_FULL_FLAG (1 << 6) -#define AMDM37x_IRDA_LSR_THR_EMPTY_FLAG (1 << 7) - - /** UART: XON2 char, IRDA: ADDR2 address */ - ioport32_t xon2_addr2; - }; - - union { - /** Modem status register */ - const ioport32_t msr; -#define AMDM37x_UART_MSR_CTS_STS_FLAG (1 << 0) -#define AMDM37x_UART_MSR_DSR_STS_FLAG (1 << 1) -#define AMDM37x_UART_MSR_RI_STS_FLAG (1 << 2) -#define AMDM37x_UART_MSR_DCD_STS_FLAG (1 << 3) -#define AMDM37x_UART_MSR_NCTS_STS_FLAG (1 << 4) -#define AMDM37x_UART_MSR_NDSR_STS_FLAG (1 << 5) -#define AMDM37x_UART_MSR_NRI_STS_FLAG (1 << 6) -#define AMDM37x_UART_MSR_NCD_STS_FLAG (1 << 7) - - /** Transmission control register */ - ioport32_t tcr; -#define AMDM37x_UART_TCR_FIFO_TRIG_MASK (0xf) -#define AMDM37x_UART_TCR_FIFO_TRIG_HALT_SHIFT (0) -#define AMDM37x_UART_TCR_FIFO_TRIG_START_SHIFT (4) - - /** UART: XOFF1 char */ - ioport32_t xoff1; -#define AMDM37x_UART_XOFF1_MASK (0xff) - }; - - union { - /* Scratchpad register, does nothing */ - ioport32_t spr; -#define AMDM37x_UART_SPR_MASK (0xff) - - /* Trigger level register */ - ioport32_t tlr; -#define AMDM37x_UART_TLR_LEVEL_MASK (0xf) -#define AMDM37x_UART_TLR_TX_FIFO_TRIG_SHIFT (0) -#define AMDM37x_UART_TLR_RX_FIFO_TRIG_SHIFT (4) - - /** UART: XOFF2 char */ - ioport32_t xoff2; -#define AMDM37x_UART_XOFF2_MASK (0xff) - }; - - /** Mode definition register. */ - ioport32_t mdr1; -#define AMDM37x_UART_MDR_MS_MASK (0x7) -#define AMDM37x_UART_MDR_MS_SHIFT (0) -#define AMDM37x_UART_MDR_MS_UART16 (0x0) -#define AMDM37x_UART_MDR_MS_SIR (0x1) -#define AMDM37x_UART_MDR_MS_UART16_AUTO (0x2) -#define AMDM37x_UART_MDR_MS_UART13 (0x3) -#define AMDM37x_UART_MDR_MS_MIR (0x4) -#define AMDM37x_UART_MDR_MS_FIR (0x5) -#define AMDM37x_UART_MDR_MS_CIR (0x6) -#define AMDM37x_UART_MDR_MS_DISABLE (0x7) - -#define AMDM37x_UART_MDR_IR_SLEEP_FLAG (1 << 3) -#define AMDM37x_UART_MDR_SET_TXIR_FLAG (1 << 4) -#define AMDM37x_UART_MDR_SCT_FLAG (1 << 5) -#define AMDM37x_UART_MDR_SIP_FLAG (1 << 6) -#define AMDM37x_UART_MDR_FRAME_END_MODE_FLAG (1 << 7) - - /** Mode definition register */ - ioport32_t mdr2; -#define AMDM37x_UART_MDR_IRTX_UNDERRUN_FLAG (1 << 0) -#define AMDM37x_UART_MDR_STS_FIFO_TRIG_MASK (0x3) -#define AMDM37x_UART_MDR_STS_FIFO_TRIG_SHIFT (1) -#define AMDM37x_UART_MDR_PULSE_SHAPING_FLAG (1 << 3) -#define AMDM37x_UART_MDR_CIR_PULSE_MODE_MASK (0x3) -#define AMDM37x_UART_MDR_CIR_PULSE_MODE_SHIFT (4) -#define AMDM37x_UART_MDR_IRRXINVERT_FLAG (1 << 6) - - - /* UART3 specific */ - union { - /** Status FIFO line status register (IrDA only) */ - const ioport32_t sflsr; -#define AMDM37x_IRDA_SFLSR_CRC_ERROR_FLAG (1 << 1) -#define AMDM37x_IRDA_SFLSR_ABORT_FLAG (1 << 2) -#define AMDM37x_IRDA_SFLSR_FTL_FLAG (1 << 3) -#define AMDM37x_IRDA_SFLSR_OE_FLAG (1 << 4) - - /** Transmit frame length low (IrDA only) */ - ioport32_t txfll; -#define AMDM37x_UART_TXFLL_MASK (0xff) - }; - - /* UART3 specific */ - union { - /** Dummy register to restart TX or RX (IrDA only) */ - const ioport32_t resume; - /** Transmit frame length high (IrDA only) */ - ioport32_t txflh; -#define AMDM37x_UART_TXFLH_MASK (0xff) - }; - - /* UART3 specific */ - union { - /** Status FIFO register low (IrDA only) */ - const ioport32_t sfregl; -#define AMDM37x_UART_SFREGL_MASK (0xff) - /** Received frame length low (IrDA only) */ - ioport32_t rxfll; -#define AMDM37x_UART_RXFLL_MASK (0xff) - }; - - /* UART3 specific */ - union { - /** Status FIFO register high (IrDA only) */ - const ioport32_t sfregh; -#define AMDM37x_UART_SFREGH_MASK (0xf) - /** Received frame length high (IrDA only) */ - ioport32_t rxflh; -#define AMDM37x_UART_RXFLH_MASK (0xf) - }; - - union { - /** UART autobauding status register */ - const ioport32_t uasr; -#define AMDM37x_UART_UASR_SPEED_MASK (0x1f) -#define AMDM37x_UART_UASR_SPEED_SHIFT (0) -#define AMDM37x_UART_UASR_8BIT_CHAR_FLAG (1 << 5) -#define AMDM37x_UART_UASR_PARITY_MASK (0x3) -#define AMDM37x_UART_UASR_PARITY_SHIFT (6) - - /** BOF control register (IrDA only) */ - ioport32_t blr; /* UART3 sepcific */ -#define AMDM37x_IRDA_BLR_XBOF_TYPE_FLAG (1 << 6) -#define AMDM37x_IRDA_BLR_STS_FIFO_RESET (1 << 7) - }; - - /** Auxiliary control register (IrDA only) */ - ioport32_t acreg; /* UART3 specific */ -#define AMDM37x_IRDA_ACREG_EOT_EN_FLAG (1 << 0) -#define AMDM37x_IRDA_ACREG_ABORT_EN_FLAG (1 << 1) -#define AMDM37x_IRDA_ACREG_SCTX_EN_FLAG (1 << 2) -#define AMDM37x_IRDA_ACREG_SEND_SIP_FLAG (1 << 3) -#define AMDM37x_IRDA_ACREG_DIS_TX_UNDERRUN_FLAG (1 << 4) -#define AMDM37x_IRDA_ACREG_DIS_IR_RX_FLAG (1 << 5) -#define AMDM37x_IRDA_ACREG_SD_MOD_FLAG (1 << 6) -#define AMDM37x_IRDA_ACREG_PULSE_TYPE_FLAG (1 << 7) - - /** Supplementary control register */ - ioport32_t scr; -#define AMDM37x_UART_SCR_DMA_MODE_CTL_FLAG (1 << 0) -#define AMDM37x_UART_SCR_DMA_MODE_MASK (0x3) -#define AMDM37x_UART_SCR_DMA_MODE_SHIFT (1) -#define AMDM37x_UART_SCR_TX_EMPTY_CTL_IRQ_FLAG (1 << 3) -#define AMDM37x_UART_SCR_RX_CTS_WU_EN_FLAG (1 << 4) -#define AMDM37x_UART_SCR_TX_TRIG_GRANU1_FLAG (1 << 6) -#define AMDM37x_UART_SCR_RX_TRIG_GRANU1_FLAG (1 << 7) - - /** Supplementary status register */ - const ioport32_t ssr; -#define AMDM37x_UART_SSR_TX_FIFO_FULL_FLAG (1 << 0) -#define AMDM37x_UART_SSR_RX_CTS_WU_STS_FLAG (1 << 1) -#define AMDM37x_UART_SSR_DMA_COUNTER_RESET_FLAG (1 << 2) - - /** BOF Length register (IrDA only)*/ - ioport32_t eblr; /* UART3 specific */ -#define AMDM37x_IRDA_EBLR_DISABLED (0x00) -#define AMDM37x_IRDA_EBLR_RX_STOP_BITS(bits) (bits & 0xff) - - uint32_t padd0_; - - /** Module version register */ - const ioport32_t mvr; -#define AMDM37x_UART_MVR_MINOR_MASK (0xf) -#define AMDM37x_UART_MVR_MINOR_SHIFT (0) -#define AMDM37x_UART_MVR_MAJOR_MASK (0xf) -#define AMDM37x_UART_MVR_MAJOR_SHIFT (4) - - /** System configuration register */ - ioport32_t sysc; -#define AMDM37x_UART_SYSC_AUTOIDLE_FLAG (1 << 0) -#define AMDM37x_UART_SYSC_SOFTRESET_FLAG (1 << 1) -#define AMDM37x_UART_SYSC_ENWAKEUP_FLAG (1 << 2) -#define AMDM37x_UART_SYSC_IDLE_MODE_MASK (0x3) -#define AMDM37x_UART_SYSC_IDLE_MODE_SHIFT (3) -#define AMDM37x_UART_SYSC_IDLE_MODE_FORCE (0x0) -#define AMDM37x_UART_SYSC_IDLE_MODE_NO (0x1) -#define AMDM37x_UART_SYSC_IDLE_MODE_SMART (0x2) - - /** System status register */ - const ioport32_t syss; -#define AMDM37x_UART_SYSS_RESETDONE_FLAG (1 << 0) - - /** Wake-up enable register */ - ioport32_t wer; -#define AMDM37x_UART_WER_CTS_ACTIVITY_FLAG (1 << 0) -#define AMDM37x_UART_WER_RI_ACTIVITY_FLAG (1 << 2) -#define AMDM37x_UART_WER_RX_ACTIVITY_FLAG (1 << 4) -#define AMDM37x_UART_WER_RHR_IRQ_FLAG (1 << 5) -#define AMDM37x_UART_WER_RLS_IRQ_FLAG (1 << 6) -#define AMDM37x_UART_WER_TX_WAKEUP_EN_FLAG (1 << 7) - - /** Carrier frequency prescaler */ - ioport32_t cfps; /* UART3 specific */ -#define AMDM37x_UART_CFPS_MASK (0xff) - - /** Number of bytes in RX fifo */ - const ioport32_t rx_fifo_lvl; -#define AMDM37x_UART_RX_FIFO_LVL_MASK (0xff) - - /** Number of bytes in TX fifo */ - const ioport32_t tx_fifo_lvl; -#define AMDM37x_UART_TX_FIFO_LVL_MASK (0xff) - - /** RX/TX empty interrupts */ - ioport32_t ier2; -#define AMDM37x_UART_IER2_RX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 0) -#define AMDM37x_UART_IER2_TX_FIFO_EMPTY_IRQ_EN_FLAG (1 << 1) - - /** RX/TX empty status */ - ioport32_t isr2; -#define AMDM37x_UART_ISR2_RX_FIFO_EMPTY_FLAG (1 << 0) -#define AMDM37x_UART_ISR2_TX_FIFO_EMPTY_FLAG (1 << 1) - - uint32_t padd2_[3]; - - /** Mode definition register 3 */ - ioport32_t mdr3; -#define AMDM37x_UART_MDR3_DIS_CIR_RX_DEMOD_FLAG (1 << 0) -} amdm37x_uart_regs_t; - -typedef struct { - amdm37x_uart_regs_t *regs; - indev_t *indev; - outdev_t outdev; - irq_t irq; -} amdm37x_uart_t; - - -bool amdm37x_uart_init(amdm37x_uart_t *, inr_t, uintptr_t, size_t); -void amdm37x_uart_input_wire(amdm37x_uart_t *, indev_t *); - -#endif - -/** - * @} - */ Index: kernel/genarch/src/drivers/am335x/timer.c =================================================================== --- kernel/genarch/src/drivers/am335x/timer.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/src/drivers/am335x/timer.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2012 Maurizio Lombardi + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x timer driver. + */ + +#include +#include +#include + + +typedef struct timer_regs_mmap { + uintptr_t base; + size_t size; +} timer_regs_mmap_t; + +static const timer_regs_mmap_t regs_map[TIMERS_MAX] = { + { .base = AM335x_DMTIMER0_BASE_ADDRESS, .size = AM335x_DMTIMER0_SIZE }, + {0, 0}, + { .base = AM335x_DMTIMER2_BASE_ADDRESS, .size = AM335x_DMTIMER2_SIZE }, + { .base = AM335x_DMTIMER3_BASE_ADDRESS, .size = AM335x_DMTIMER3_SIZE }, + { .base = AM335x_DMTIMER4_BASE_ADDRESS, .size = AM335x_DMTIMER4_SIZE }, + { .base = AM335x_DMTIMER5_BASE_ADDRESS, .size = AM335x_DMTIMER5_SIZE }, + { .base = AM335x_DMTIMER6_BASE_ADDRESS, .size = AM335x_DMTIMER6_SIZE }, + { .base = AM335x_DMTIMER7_BASE_ADDRESS, .size = AM335x_DMTIMER7_SIZE }, +}; + +void +am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id, unsigned hz) +{ + uintptr_t base_addr; + size_t size; + + ASSERT(id < TIMERS_MAX); + + if (id == DMTIMER1_1MS) + return; /* Not supported yet */ + + base_addr = regs_map[id].base; + size = regs_map[id].size; + + timer->regs = (void *) km_map(base_addr, size, PAGE_NOT_CACHEABLE); + timer->id = id; + + am335x_timer_regs_t *regs = timer->regs; + + /* Stop the timer */ + am335x_timer_stop(timer); + + /* Perform a soft reset */ + am335x_timer_reset(timer); + + /* Disable the prescaler */ + regs->tclr &= ~AM335x_TIMER_TCLR_PRE_FLAG; + + /* Enable auto-reload mode */ + regs->tclr |= AM335x_TIMER_TCLR_AR_FLAG; + + /* XXX Here we assume that the timer clock source + * is running at 32 Khz but this is not always the + * case; DMTIMER[2 - 7] can use the internal system 24 Mhz + * clock source or an external clock also. + */ + unsigned const count = 0xFFFFFFFE - 32768 / hz; + regs->tcrr = count; + regs->tldr = count; +} + +void +am335x_timer_intr_ack(am335x_timer_t *timer) +{ + /* Clear pending OVF event */ + timer->regs->irqstatus |= AM335x_TIMER_IRQSTATUS_OVF_FLAG; +} + +void +am335x_timer_reset(am335x_timer_t *timer) +{ + /* Initiate soft reset */ + timer->regs->tiocp_cfg |= AM335x_TIMER_TIOCPCFG_SOFTRESET_FLAG; + /* Wait until the reset is done */ + while (timer->regs->tiocp_cfg & AM335x_TIMER_TIOCPCFG_SOFTRESET_FLAG); +} + +void +am335x_timer_stop(am335x_timer_t *timer) +{ + /* Disable the interrupt */ + timer->regs->irqenable_clr |= AM335x_TIMER_IRQENABLE_CLR_OVF_FLAG; + /* Stop the timer */ + timer->regs->tclr &= ~AM335x_TIMER_TCLR_ST_FLAG; +} + +void +am335x_timer_start(am335x_timer_t *timer) +{ + /* Enable the interrupt */ + timer->regs->irqenable_set |= AM335x_TIMER_IRQENABLE_SET_OVF_FLAG; + /* Start the clock */ + timer->regs->tclr |= AM335x_TIMER_TCLR_ST_FLAG; +} + +/** + * @} + */ + Index: kernel/genarch/src/drivers/am335x/uart.c =================================================================== --- kernel/genarch/src/drivers/am335x/uart.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/src/drivers/am335x/uart.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,161 @@ +/* + * Copyright (c) 2012 Jan Vesely + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AM335x on-chip uart serial line driver. + */ + +#include +#include +#include +#include + +static void am335x_uart_txb(am335x_uart_t *uart, uint8_t b) +{ + /* Wait for buffer */ + while (uart->regs->ssr & AM335x_UART_SSR_TX_FIFO_FULL_FLAG); + /* Write to the outgoing fifo */ + uart->regs->thr = b; +} + +static void am335x_uart_putchar(outdev_t *dev, wchar_t ch) +{ + am335x_uart_t *uart = dev->data; + if (!ascii_check(ch)) { + am335x_uart_txb(uart, U_SPECIAL); + } else { + if (ch == '\n') + am335x_uart_txb(uart, '\r'); + am335x_uart_txb(uart, ch); + } +} + +static outdev_operations_t am335x_uart_ops = { + .redraw = NULL, + .write = am335x_uart_putchar, +}; + +static irq_ownership_t am335x_uart_claim(irq_t *irq) +{ + return IRQ_ACCEPT; +} + +static void am335x_uart_handler(irq_t *irq) +{ + am335x_uart_t *uart = irq->instance; + while ((uart->regs->rx_fifo_lvl)) { + const uint8_t val = uart->regs->rhr; + if (uart->indev && val) { + indev_push_character(uart->indev, val); + } + } +} + +bool am335x_uart_init( + am335x_uart_t *uart, inr_t interrupt, uintptr_t addr, size_t size) +{ + ASSERT(uart); + uart->regs = (void *)km_map(addr, size, PAGE_NOT_CACHEABLE); + + ASSERT(uart->regs); + + /* Soft reset the port */ + uart->regs->sysc = AM335x_UART_SYSC_SOFTRESET_FLAG; + while (!(uart->regs->syss & AM335x_UART_SYSS_RESETDONE_FLAG)) ; + + /* Enable access to EFR register */ + const uint8_t lcr = uart->regs->lcr; /* Save old value */ + uart->regs->lcr = 0xbf; /* Sets config mode B */ + + /* Enable access to TCL_TLR register */ + const bool enhanced = uart->regs->efr & AM335x_UART_EFR_ENH_FLAG; + uart->regs->efr |= AM335x_UART_EFR_ENH_FLAG; /* Turn on enh. */ + uart->regs->lcr = 0x80; /* Config mode A */ + + /* Set default (val 0) triggers, disable DMA enable FIFOs */ + const bool tcl_tlr = uart->regs->mcr & AM335x_UART_MCR_TCR_TLR_FLAG; + /* Enable access to tcr and tlr registers */ + uart->regs->mcr |= AM335x_UART_MCR_TCR_TLR_FLAG; + + /* Enable FIFOs */ + uart->regs->fcr = AM335x_UART_FCR_FIFO_EN_FLAG; + + /* Enable fine granularity for RX FIFO and set trigger level to 1, + * TX FIFO, trigger level is irrelevant*/ + uart->regs->lcr = 0xbf; /* Sets config mode B */ + uart->regs->scr = AM335x_UART_SCR_RX_TRIG_GRANU1_FLAG; + uart->regs->tlr = 1 << AM335x_UART_TLR_RX_FIFO_TRIG_SHIFT; + + /* Restore enhanced */ + if (!enhanced) + uart->regs->efr &= ~AM335x_UART_EFR_ENH_FLAG; + + uart->regs->lcr = 0x80; /* Config mode A */ + /* Restore tcl_lcr access flag*/ + if (!tcl_tlr) + uart->regs->mcr &= ~AM335x_UART_MCR_TCR_TLR_FLAG; + + /* Restore lcr */ + uart->regs->lcr = lcr; + + /* Disable interrupts */ + uart->regs->ier = 0; + + /* Setup outdev */ + outdev_initialize("am335x_uart_dev", &uart->outdev, &am335x_uart_ops); + uart->outdev.data = uart; + + /* Initialize IRQ */ + irq_initialize(&uart->irq); + uart->irq.devno = device_assign_devno(); + uart->irq.inr = interrupt; + uart->irq.claim = am335x_uart_claim; + uart->irq.handler = am335x_uart_handler; + uart->irq.instance = uart; + + return true; +} + +void am335x_uart_input_wire(am335x_uart_t *uart, indev_t *indev) +{ + ASSERT(uart); + /* Set indev */ + uart->indev = indev; + /* Register interrupt. */ + irq_register(&uart->irq); + /* Enable interrupt on receive */ + uart->regs->ier |= AM335x_UART_IER_RHR_IRQ_FLAG; +} + +/** + * @} + */ + Index: kernel/genarch/src/drivers/amdm37x/uart.c =================================================================== --- kernel/genarch/src/drivers/amdm37x/uart.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) +++ kernel/genarch/src/drivers/amdm37x/uart.c (revision 6968948581aef38fdbe76fe199a34ff76b3f1572) @@ -0,0 +1,163 @@ +/* + * Copyright (c) 2012 Jan Vesely + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/** @addtogroup genarch + * @{ + */ +/** + * @file + * @brief Texas Instruments AMDM37x on-chip uart serial line driver. + */ + +#include +#include +#include +#include + +static void amdm37x_uart_txb(amdm37x_uart_t *uart, uint8_t b) +{ + /* Wait for buffer */ + while (uart->regs->ssr & AMDM37x_UART_SSR_TX_FIFO_FULL_FLAG); + /* Write to the outgoing fifo */ + uart->regs->thr = b; +} + +static void amdm37x_uart_putchar(outdev_t *dev, wchar_t ch) +{ + amdm37x_uart_t *uart = dev->data; + if (!ascii_check(ch)) { + amdm37x_uart_txb(uart, U_SPECIAL); + } else { + if (ch == '\n') + amdm37x_uart_txb(uart, '\r'); + amdm37x_uart_txb(uart, ch); + } +} + +static outdev_operations_t amdm37x_uart_ops = { + .redraw = NULL, + .write = amdm37x_uart_putchar, +}; + +static irq_ownership_t amdm37x_uart_claim(irq_t *irq) +{ + return IRQ_ACCEPT; +} + +static void amdm37x_uart_handler(irq_t *irq) +{ + amdm37x_uart_t *uart = irq->instance; + while ((uart->regs->rx_fifo_lvl)) { + const uint8_t val = uart->regs->rhr; + if (uart->indev && val) { + indev_push_character(uart->indev, val); + } + } +} + +bool amdm37x_uart_init( + amdm37x_uart_t *uart, inr_t interrupt, uintptr_t addr, size_t size) +{ + ASSERT(uart); + uart->regs = (void *)km_map(addr, size, PAGE_NOT_CACHEABLE); + + ASSERT(uart->regs); + + /* See TI OMAP35X TRM ch 17.5.1.1 p. 2732 for startup routine */ +#if 0 + /* Soft reset the port */ + uart->regs->sysc = AMDM37x_UART_SYSC_SOFTRESET_FLAG; + while (!(uart->regs->syss & AMDM37x_UART_SYSS_RESETDONE_FLAG)) ; +#endif + + /* Enable access to EFR register */ + const uint8_t lcr = uart->regs->lcr; /* Save old value */ + uart->regs->lcr = 0xbf; /* Sets config mode B */ + + /* Enable access to TCL_TLR register */ + const bool enhanced = uart->regs->efr & AMDM37x_UART_EFR_ENH_FLAG; + uart->regs->efr |= AMDM37x_UART_EFR_ENH_FLAG; /* Turn on enh. */ + uart->regs->lcr = 0x80; /* Config mode A */ + + /* Set default (val 0) triggers, disable DMA enable FIFOs */ + const bool tcl_tlr = uart->regs->mcr & AMDM37x_UART_MCR_TCR_TLR_FLAG; + /* Enable access to tcr and tlr registers */ + uart->regs->mcr |= AMDM37x_UART_MCR_TCR_TLR_FLAG; + + /* Enable FIFOs */ + uart->regs->fcr = AMDM37x_UART_FCR_FIFO_EN_FLAG; + + /* Eneble fine granularity for RX FIFO and set trigger level to 1, + * TX FIFO, trigger level is irelevant*/ + uart->regs->lcr = 0xbf; /* Sets config mode B */ + uart->regs->scr = AMDM37x_UART_SCR_RX_TRIG_GRANU1_FLAG; + uart->regs->tlr = 1 << AMDM37x_UART_TLR_RX_FIFO_TRIG_SHIFT; + + /* Restore enhanced */ + if (!enhanced) + uart->regs->efr &= ~AMDM37x_UART_EFR_ENH_FLAG; + + uart->regs->lcr = 0x80; /* Config mode A */ + /* Restore tcl_lcr access flag*/ + if (!tcl_tlr) + uart->regs->mcr &= ~AMDM37x_UART_MCR_TCR_TLR_FLAG; + + /* Restore lcr */ + uart->regs->lcr = lcr; + + /* Disable interrupts */ + uart->regs->ier = 0; + + /* Setup outdev */ + outdev_initialize("amdm37x_uart_dev", &uart->outdev, &amdm37x_uart_ops); + uart->outdev.data = uart; + + /* Initialize IRQ */ + irq_initialize(&uart->irq); + uart->irq.devno = device_assign_devno(); + uart->irq.inr = interrupt; + uart->irq.claim = amdm37x_uart_claim; + uart->irq.handler = amdm37x_uart_handler; + uart->irq.instance = uart; + + return true; +} + +void amdm37x_uart_input_wire(amdm37x_uart_t *uart, indev_t *indev) +{ + ASSERT(uart); + /* Set indev */ + uart->indev = indev; + /* Register interrupt. */ + irq_register(&uart->irq); + /* Enable interrupt on receive */ + uart->regs->ier |= AMDM37x_UART_IER_RHR_IRQ_FLAG; +} + +/** + * @} + */ Index: kernel/genarch/src/drivers/amdm37x_uart/amdm37x_uart.c =================================================================== --- kernel/genarch/src/drivers/amdm37x_uart/amdm37x_uart.c (revision a14f3465b7d65eb909b06cf7a9a15f60743bcabe) +++ (revision ) @@ -1,163 +1,0 @@ -/* - * Copyright (c) 2012 Jan Vesely - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -/** @addtogroup genarch - * @{ - */ -/** - * @file - * @brief Texas Instruments AMDM37x on-chip uart serial line driver. - */ - -#include -#include -#include -#include - -static void amdm37x_uart_txb(amdm37x_uart_t *uart, uint8_t b) -{ - /* Wait for buffer */ - while (uart->regs->ssr & AMDM37x_UART_SSR_TX_FIFO_FULL_FLAG); - /* Write to the outgoing fifo */ - uart->regs->thr = b; -} - -static void amdm37x_uart_putchar(outdev_t *dev, wchar_t ch) -{ - amdm37x_uart_t *uart = dev->data; - if (!ascii_check(ch)) { - amdm37x_uart_txb(uart, U_SPECIAL); - } else { - if (ch == '\n') - amdm37x_uart_txb(uart, '\r'); - amdm37x_uart_txb(uart, ch); - } -} - -static outdev_operations_t amdm37x_uart_ops = { - .redraw = NULL, - .write = amdm37x_uart_putchar, -}; - -static irq_ownership_t amdm37x_uart_claim(irq_t *irq) -{ - return IRQ_ACCEPT; -} - -static void amdm37x_uart_handler(irq_t *irq) -{ - amdm37x_uart_t *uart = irq->instance; - while ((uart->regs->rx_fifo_lvl)) { - const uint8_t val = uart->regs->rhr; - if (uart->indev && val) { - indev_push_character(uart->indev, val); - } - } -} - -bool amdm37x_uart_init( - amdm37x_uart_t *uart, inr_t interrupt, uintptr_t addr, size_t size) -{ - ASSERT(uart); - uart->regs = (void *)km_map(addr, size, PAGE_NOT_CACHEABLE); - - ASSERT(uart->regs); - - /* See TI OMAP35X TRM ch 17.5.1.1 p. 2732 for startup routine */ -#if 0 - /* Soft reset the port */ - uart->regs->sysc = AMDM37x_UART_SYSC_SOFTRESET_FLAG; - while (!(uart->regs->syss & AMDM37x_UART_SYSS_RESETDONE_FLAG)) ; -#endif - - /* Enable access to EFR register */ - const uint8_t lcr = uart->regs->lcr; /* Save old value */ - uart->regs->lcr = 0xbf; /* Sets config mode B */ - - /* Enable access to TCL_TLR register */ - const bool enhanced = uart->regs->efr & AMDM37x_UART_EFR_ENH_FLAG; - uart->regs->efr |= AMDM37x_UART_EFR_ENH_FLAG; /* Turn on enh. */ - uart->regs->lcr = 0x80; /* Config mode A */ - - /* Set default (val 0) triggers, disable DMA enable FIFOs */ - const bool tcl_tlr = uart->regs->mcr & AMDM37x_UART_MCR_TCR_TLR_FLAG; - /* Enable access to tcr and tlr registers */ - uart->regs->mcr |= AMDM37x_UART_MCR_TCR_TLR_FLAG; - - /* Enable FIFOs */ - uart->regs->fcr = AMDM37x_UART_FCR_FIFO_EN_FLAG; - - /* Eneble fine granularity for RX FIFO and set trigger level to 1, - * TX FIFO, trigger level is irelevant*/ - uart->regs->lcr = 0xbf; /* Sets config mode B */ - uart->regs->scr = AMDM37x_UART_SCR_RX_TRIG_GRANU1_FLAG; - uart->regs->tlr = 1 << AMDM37x_UART_TLR_RX_FIFO_TRIG_SHIFT; - - /* Restore enhanced */ - if (!enhanced) - uart->regs->efr &= ~AMDM37x_UART_EFR_ENH_FLAG; - - uart->regs->lcr = 0x80; /* Config mode A */ - /* Restore tcl_lcr access flag*/ - if (!tcl_tlr) - uart->regs->mcr &= ~AMDM37x_UART_MCR_TCR_TLR_FLAG; - - /* Restore lcr */ - uart->regs->lcr = lcr; - - /* Disable interrupts */ - uart->regs->ier = 0; - - /* Setup outdev */ - outdev_initialize("amdm37x_uart_dev", &uart->outdev, &amdm37x_uart_ops); - uart->outdev.data = uart; - - /* Initialize IRQ */ - irq_initialize(&uart->irq); - uart->irq.devno = device_assign_devno(); - uart->irq.inr = interrupt; - uart->irq.claim = amdm37x_uart_claim; - uart->irq.handler = amdm37x_uart_handler; - uart->irq.instance = uart; - - return true; -} - -void amdm37x_uart_input_wire(amdm37x_uart_t *uart, indev_t *indev) -{ - ASSERT(uart); - /* Set indev */ - uart->indev = indev; - /* Register interrupt. */ - irq_register(&uart->irq); - /* Enable interrupt on receive */ - uart->regs->ier |= AMDM37x_UART_IER_RHR_IRQ_FLAG; -} - -/** - * @} - */