diff options
Diffstat (limited to 'arch/arm/mach-shmobile/include/mach/zboot_macros.h')
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/zboot_macros.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/include/mach/zboot_macros.h b/arch/arm/mach-shmobile/include/mach/zboot_macros.h index aa6111fbc98..14fd3d538e9 100644 --- a/arch/arm/mach-shmobile/include/mach/zboot_macros.h +++ b/arch/arm/mach-shmobile/include/mach/zboot_macros.h @@ -62,4 +62,47 @@ 2 : .endm +/* loop until a given value has been read (with mask) */ +.macro WAIT_MASK, addr, data, cmp + LDR r0, 2f + LDR r1, 3f + LDR r2, 4f +1: + LDR r3, [r0, #0] + AND r3, r1, r3 + CMP r2, r3 + BNE 1b + B 5f +2: .long \addr +3: .long \data +4: .long \cmp +5: +.endm + +/* read 32-bit value from addr, "or" an immediate and write back */ +.macro ED_OR, addr, data + LDR r4, 1f + LDR r5, 2f + LDR r6, [r4] + ORR r5, r6, r5 + STR r5, [r4] + B 3f +1: .long \addr +2: .long \data +3: +.endm + +/* read 32-bit value from addr, "and" an immediate and write back */ +.macro ED_AND, addr, data + LDR r4, 1f + LDR r5, 2f + LDR r6, [r4] + AND r5, r6, r5 + STR r5, [r4] + B 3f +1: .long \addr +2: .long \data +3: +.endm + #endif /* __ZBOOT_MACRO_H */ |