diff options
| author | rev13@wp.pl <rev13@wp.pl> | 2015-03-01 12:44:39 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-04-22 12:14:55 -0400 |
| commit | 12d8a729137ec58107236c472ddb14a819e7bd0b (patch) | |
| tree | 9d4f065d21466e06071d29b1b86eb6d185f0dffb /arch/arm/lib/relocate.S | |
| parent | 5d27223ea5424fc157c8ac0afb236bc8cfcd1772 (diff) | |
ARM: Add ARMv7-M support
Signed-off-by: Kamil Lulko <rev13@wp.pl>
Diffstat (limited to 'arch/arm/lib/relocate.S')
| -rw-r--r-- | arch/arm/lib/relocate.S | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S index 92f531452d..475d503dd9 100644 --- a/arch/arm/lib/relocate.S +++ b/arch/arm/lib/relocate.S @@ -9,6 +9,9 @@ #include <asm-offsets.h> #include <config.h> #include <linux/linkage.h> +#ifdef CONFIG_CPU_V7M +#include <asm/armv7m.h> +#endif /* * Default/weak exception vectors relocation routine @@ -23,6 +26,15 @@ ENTRY(relocate_vectors) +#ifdef CONFIG_CPU_V7M + /* + * On ARMv7-M we only have to write the new vector address + * to VTOR register. + */ + ldr r0, [r9, #GD_RELOCADDR] /* r0 = gd->relocaddr */ + ldr r1, =V7M_SCB_BASE + str r0, [r1, V7M_SCB_VTOR] +#else #ifdef CONFIG_HAS_VBAR /* * If the ARM processor has the security extensions, @@ -47,6 +59,7 @@ ENTRY(relocate_vectors) ldmia r0!, {r2-r8,r10} stmia r1!, {r2-r8,r10} #endif +#endif bx lr ENDPROC(relocate_vectors) |