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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-21 05:39:31 +0100 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-12-23 20:14:13 +0100 |
| commit | d23f5099297c0f017ba4fb165dc9879bda11f9ce (patch) | |
| tree | 0a43ca1a2090643290f02115526875bdf6390a10 /arch/powerpc/boot/dcr.h | |
| parent | [POWERPC] 4xx: Wire up 440EP USB controller support to Bamboo board (diff) | |
| download | linux-d23f5099297c0f017ba4fb165dc9879bda11f9ce.tar.xz linux-d23f5099297c0f017ba4fb165dc9879bda11f9ce.zip | |
[POWERPC] 4xx: Adds decoding of 440SPE memory size to boot wrapper library
This adds a function to the bootwrapper 4xx library to decode memory
size on 440SPE processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/boot/dcr.h')
| -rw-r--r-- | arch/powerpc/boot/dcr.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h index 83b88aa92888..8e7ee2a4298f 100644 --- a/arch/powerpc/boot/dcr.h +++ b/arch/powerpc/boot/dcr.h @@ -14,12 +14,20 @@ #define DCRN_SDRAM0_CFGADDR 0x010 #define DCRN_SDRAM0_CFGDATA 0x011 +#define SDRAM0_READ(offset) ({\ + mtdcr(DCRN_SDRAM0_CFGADDR, offset); \ + mfdcr(DCRN_SDRAM0_CFGDATA); }) +#define SDRAM0_WRITE(offset, data) ({\ + mtdcr(DCRN_SDRAM0_CFGADDR, offset); \ + mtdcr(DCRN_SDRAM0_CFGDATA, data); }) + #define SDRAM0_B0CR 0x40 #define SDRAM0_B1CR 0x44 #define SDRAM0_B2CR 0x48 #define SDRAM0_B3CR 0x4c -static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR, SDRAM0_B2CR, SDRAM0_B3CR }; +static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR, + SDRAM0_B2CR, SDRAM0_B3CR }; #define SDRAM_CONFIG_BANK_ENABLE 0x00000001 #define SDRAM_CONFIG_SIZE_MASK 0x000e0000 |