Changeset 39cb79a in mainline for arch/sparc64


Ignore:
Timestamp:
2005-10-29T13:37:52Z (20 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
2cd0485d
Parents:
b9b103d3
Message:

sparc64 work.
Link kernel with load address 0x4000.
Add fragment of Linux image header to force SILO to always load the kernel at 0x4000.
Adjust ofw.h and ofw.c to work also on sparc64.

Location:
arch/sparc64
Files:
1 added
4 edited

Legend:

Unmodified
Added
Removed

  • arch/sparc64/Makefile.inc

    rb9b103d3 r39cb79a  
    2020arch_sources= \
    2121        src/arch/dummy.s \
    22         src/arch/start.S
     22        src/arch/start.S \
     23        src/arch/sparc64.c
     24

  • arch/sparc64/_link.ld

    rb9b103d3 r39cb79a  
    1212
    1313SECTIONS {
    14         .image 0x80000000: AT (0x80000000) {
     14        .image 0x4000: AT (0x4000) {
    1515                ktext_start = .;
    1616                *(K_TEXT_START)
    … …  
    3131                LONG(kdata_end - kdata_start);
    3232                hardcoded_load_address = .;
    33                 LONG(0x80000000);
     33                LONG(0x4000);
    3434                *(.bss);                /* uninitialized static variables */   
    3535                *(COMMON);              /* global variables */

  • arch/sparc64/src/dummy.s

    rb9b103d3 r39cb79a  
    2929.text
    3030
    31 .global arch_late_init
    32 .global arch_post_mm_init
    33 .global arch_pre_mm_init
    3431.global asm_delay_loop
    3532.global before_thread_runs_arch
    36 .global calibrate_delay_loop
    3733.global context_restore_arch
    3834.global context_save_arch
    … …  
    6056.global dummy
    6157
    62 arch_late_init:
    63 arch_post_mm_init:
    64 arch_pre_mm_init:
    6558asm_delay_loop:
    6659before_thread_runs_arch:
    67 calibrate_delay_loop:
    6860context_restore_arch:
    6961context_save_arch:

  • arch/sparc64/src/start.S

    rb9b103d3 r39cb79a  
    3232kernel_image_start:
    33330:
    34         b 0b
     34        b 1f
    3535        nop
     36
     37#
     38# This header forces SILO to load the kernel at 0x4000.
     39# More precisely, SILO will think this is an old version of Linux.
     40#
     41.ascii "HdrS"
     42.word 0
     43.half 0
     44
     45.align 8
     46
     471:
     48        set ofw, %l0
     49        stx %o4, [%l0]
     50
     51        call ofw_init
     52        nop
     53
     542:
     55        b 2b
     56        nop
     57
Note: See TracChangeset for help on using the changeset viewer.