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| author | Jason Liu <r64343@freescale.com> | 2010-12-03 11:08:12 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2010-12-07 15:33:56 +0800 |
| commit | d509a056972ea643382f4763768faeeb3aecc6f0 (patch) | |
| tree | 4f9f21cc9f46522774ec773e9054c4098bf85f27 /include/asm-arm/arch-mx51 | |
| parent | 298e4cf6838aca016388f6fdfc7ce80cb7902228 (diff) | |
| download | u-boot-imx-d509a056972ea643382f4763768faeeb3aecc6f0.zip u-boot-imx-d509a056972ea643382f4763768faeeb3aecc6f0.tar.gz u-boot-imx-d509a056972ea643382f4763768faeeb3aecc6f0.tar.bz2 | |
ENGR00134220-1 NAND: fix up the chip select handling
When the NAND has multi-cs, the chip select other than
cs0 is not handled correctly which will lead to NAND not
function as expected
Signed-off-by: Jason Liu <r64343@freescale.com>
Diffstat (limited to 'include/asm-arm/arch-mx51')
| -rw-r--r-- | include/asm-arm/arch-mx51/mxc_nand.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/asm-arm/arch-mx51/mxc_nand.h b/include/asm-arm/arch-mx51/mxc_nand.h index 843f080..4c37620 100644 --- a/include/asm-arm/arch-mx51/mxc_nand.h +++ b/include/asm-arm/arch-mx51/mxc_nand.h @@ -287,7 +287,7 @@ do { \ #define UNLOCK_ADDR(start_addr, end_addr) \ { \ int i = 0; \ - for (; i < NAND_MAX_CHIPS; i++) \ + for (; i < NFC_GET_MAXCHIP_SP(); i++) \ raw_write(start_addr | \ (end_addr << NFC_UNLOCK_END_ADDR_SHIFT), \ REG_UNLOCK_BLK_ADD0 + (i << 2)); \ @@ -298,6 +298,10 @@ do { \ (NFC_FIELD_RESET(NFC_ACTIVE_CS_WIDTH, NFC_ACTIVE_CS_SHIFT))) | \ ((val) << NFC_ACTIVE_CS_SHIFT), NFC_CONFIG1); +#define NFC_GET_NFC_ACTIVE_CS() \ + ((raw_read(NFC_CONFIG1) >> NFC_ACTIVE_CS_SHIFT) & \ + ((1 << NFC_ACTIVE_CS_WIDTH) - 1)) + #define NFC_GET_MAXCHIP_SP() 8 #define NFC_SET_BLS(val) ((raw_read(REG_NFC_BLS) & NFC_BLS_RESET) | val) |