Changeset bf6f6ca in mainline for uspace/drv/infrastructure/rootamdm37x/rootamdm37x.c

Timestamp:

2012-11-20T14:05:37Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

bf2a269

Parents:

19acf24

Message:

rootamdm37x: Check USB TLL accessibility before accessing the module.

File:

• uspace/drv/infrastructure/rootamdm37x/rootamdm37x.c (modified) (1 diff)

uspace/drv/infrastructure/rootamdm37x/rootamdm37x.c

@@ -340 +340 @@
 static int usb_tll_init(amdm37x_t *device)
 {
+        /* Check access */
+        if (pio_read_32(&device->cm.core->idlest3) & CORE_CM_IDLEST3_ST_USBTLL_FLAG) {
+                ddf_msg(LVL_ERROR, "USB TLL is not accessible");
+                return EIO;
+        }
+
         /* Reset USB TLL */
         pio_set_32(&device->tll->sysconfig, TLL_SYSCONFIG_SOFTRESET_FLAG, 5);