Changeset 8cf4823 in mainline for kernel/arch/arm32/src/exception.c

Timestamp:

2012-09-06T12:03:14Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

2d884ab, 70253688, cc250b3

Parents:

c9717e3

Message:

arm32: Fix high vector bit control register location.

ARM920T (gta02) TRM A2.3.5 (PDF p. 36) and ARM926EJ-S (icp) 2.3.2 (PDF p. 42)
confirm this as the correct location.

Fixes integrator cp on qemu 1.2.0 and linaro qemu.

File:

• kernel/arch/arm32/src/exception.c (modified) (2 diffs)

kernel/arch/arm32/src/exception.c

@@ -123 +123 @@
         
         asm volatile (
-                "mrc p15, 0, %[control_reg], c1, c1"
+                "mrc p15, 0, %[control_reg], c1, c0"
                 : [control_reg] "=r" (control_reg)
         );
@@ -131 +131 @@
         
         asm volatile (
-                "mcr p15, 0, %[control_reg], c1, c1"
+                "mcr p15, 0, %[control_reg], c1, c0"
                 :: [control_reg] "r" (control_reg)
         );