diff options
| author | Wolfgang Denk <wd@denx.de> | 2010-10-20 00:10:07 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-10-20 00:10:07 +0200 |
| commit | b18815752f3d6db27877606e4e069e3f6cfe3a19 (patch) | |
| tree | 6c020a953e33ff48304d94f3ec586431321cd147 /arch/arm/include/asm/arch-pxa/macro.h | |
| parent | 683e9f1ea5586d7538c9afa397a0a86ccfb21bff (diff) | |
| parent | 2ea88b063e1547ff013b00e74a4656603be5ed5f (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arm/include/asm/arch-pxa/macro.h')
| -rw-r--r-- | arch/arm/include/asm/arch-pxa/macro.h | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/arm/include/asm/arch-pxa/macro.h b/arch/arm/include/asm/arch-pxa/macro.h index 035a57e0af..85958dd32d 100644 --- a/arch/arm/include/asm/arch-pxa/macro.h +++ b/arch/arm/include/asm/arch-pxa/macro.h @@ -102,7 +102,11 @@ /* * This macro sets up the Memory controller of the PXA2xx CPU * - * Clobbered regs: r3, r4, r5 + * WARNING: This macro uses internally r3 and r7 regs for MEMC_BASE + * and CONFIG_SYS_MDREFR_VAL correspondingly. Please do not + * use this regs for other purpose inside this macro. + * + * Clobbered regs: r3, r4, r5, r6, r7 */ .macro pxa_mem_setup /* This comes handy when setting MDREFR */ @@ -157,7 +161,7 @@ bic r5, r5, #0xf00 /* MDREFR user config with zeroed DRI */ ldr r4, =CONFIG_SYS_MDREFR_VAL - mov r6, r4 + mov r7, r4 lsl r4, #20 lsr r4, #20 /* Get a valid DRI field */ @@ -187,12 +191,12 @@ * 6) Initialize SDRAM */ - bic r6, #MDREFR_SLFRSH - str r6, [r3, #MDREFR_OFFSET] + bic r7, #MDREFR_SLFRSH + str r7, [r3, #MDREFR_OFFSET] ldr r4, [r3, #MDREFR_OFFSET] - orr r6, #MDREFR_E1PIN - str r6, [r3, #MDREFR_OFFSET] + orr r7, #MDREFR_E1PIN + str r7, [r3, #MDREFR_OFFSET] ldr r4, [r3, #MDREFR_OFFSET] /* @@ -250,8 +254,8 @@ */ ldr r4, [r3, #MDREFR_OFFSET] - and r6, r6, #MDREFR_APD - orr r4, r4, r6 + and r7, r7, #MDREFR_APD + orr r4, r4, r7 str r4, [r3, #MDREFR_OFFSET] ldr r4, [r3, #MDREFR_OFFSET] .endm |