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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 12:32:54 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 12:32:54 +0100 |
| commit | b86040a59feb255a8193173caa4d5199464433d5 (patch) | |
| tree | 89c07450eabc2abb88bb4d6e32d61fd3855f000e /arch/arm/kernel/head-common.S | |
| parent | 0becb088501886f37ade38762c8eaaf4263572cc (diff) | |
| download | kernel_samsung_smdk4412-b86040a59feb255a8193173caa4d5199464433d5.zip kernel_samsung_smdk4412-b86040a59feb255a8193173caa4d5199464433d5.tar.gz kernel_samsung_smdk4412-b86040a59feb255a8193173caa4d5199464433d5.tar.bz2 | |
Thumb-2: Implementation of the unified start-up and exceptions code
This patch implements the ARM/Thumb-2 unified kernel start-up and
exception handling code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/kernel/head-common.S')
| -rw-r--r-- | arch/arm/kernel/head-common.S | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index dbfaef0..93ad576 100644 --- a/arch/arm/kernel/head-common.S +++ b/arch/arm/kernel/head-common.S @@ -52,7 +52,9 @@ __mmap_switched: strcc fp, [r6],#4 bcc 1b - ldmia r3, {r4, r5, r6, r7, sp} + ARM( ldmia r3, {r4, r5, r6, r7, sp}) + THUMB( ldmia r3, {r4, r5, r6, r7} ) + THUMB( ldr sp, [r3, #16] ) str r9, [r4] @ Save processor ID str r1, [r5] @ Save machine type str r2, [r6] @ Save atags pointer @@ -156,7 +158,8 @@ ENDPROC(__error) */ __lookup_processor_type: adr r3, 3f - ldmda r3, {r5 - r7} + ldmia r3, {r5 - r7} + add r3, r3, #8 sub r3, r3, r7 @ get offset between virt&phys add r5, r5, r3 @ convert virt addresses to add r6, r6, r3 @ physical address space @@ -187,9 +190,9 @@ ENDPROC(lookup_processor_type) * more information about the __proc_info and __arch_info structures. */ .align 2 - .long __proc_info_begin +3: .long __proc_info_begin .long __proc_info_end -3: .long . +4: .long . .long __arch_info_begin .long __arch_info_end @@ -205,7 +208,7 @@ ENDPROC(lookup_processor_type) * r5 = mach_info pointer in physical address space */ __lookup_machine_type: - adr r3, 3b + adr r3, 4b ldmia r3, {r4, r5, r6} sub r3, r3, r4 @ get offset between virt&phys add r5, r5, r3 @ convert virt addresses to |