diff options
Diffstat (limited to 'cpu/arm926ejs/davinci/nand.c')
| -rw-r--r-- | cpu/arm926ejs/davinci/nand.c | 41 |
1 files changed, 5 insertions, 36 deletions
diff --git a/cpu/arm926ejs/davinci/nand.c b/cpu/arm926ejs/davinci/nand.c index 127be9f..3257f83 100644 --- a/cpu/arm926ejs/davinci/nand.c +++ b/cpu/arm926ejs/davinci/nand.c @@ -117,7 +117,7 @@ static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode) dummy = emif_addr->NANDF3ECC; dummy = emif_addr->NANDF4ECC; - emif_addr->NANDFCR |= (1 << 8); + emif_addr->NANDFCR |= (1 << (CFG_DAVINCI_NANDCE + 6)); } static u_int32_t nand_davinci_readecc(struct mtd_info *mtd, u_int32_t region) @@ -147,7 +147,7 @@ static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u n = (this->eccmode == NAND_ECC_HW12_2048) ? 4 : 1; - region = 1; + region = (CFG_DAVINCI_NANDCE - 1); while (n--) { tmp = nand_davinci_readecc(mtd, region); *ecc_code++ = tmp; @@ -311,40 +311,9 @@ static int nand_davinci_waitfunc(struct mtd_info *mtd, struct nand_chip *this, i static void nand_flash_init(void) { - u_int32_t acfg1 = 0x3ffffffc; - u_int32_t acfg2 = 0x3ffffffc; - u_int32_t acfg3 = 0x3ffffffc; - u_int32_t acfg4 = 0x3ffffffc; - emifregs emif_regs; - - /*------------------------------------------------------------------* - * NAND FLASH CHIP TIMEOUT @ 459 MHz * - * * - * AEMIF.CLK freq = PLL1/6 = 459/6 = 76.5 MHz * - * AEMIF.CLK period = 1/76.5 MHz = 13.1 ns * - * * - *------------------------------------------------------------------*/ - acfg1 = 0 - | (0 << 31 ) /* selectStrobe */ - | (0 << 30 ) /* extWait */ - | (1 << 26 ) /* writeSetup 10 ns */ - | (3 << 20 ) /* writeStrobe 40 ns */ - | (1 << 17 ) /* writeHold 10 ns */ - | (1 << 13 ) /* readSetup 10 ns */ - | (5 << 7 ) /* readStrobe 60 ns */ - | (1 << 4 ) /* readHold 10 ns */ - | (3 << 2 ) /* turnAround ?? ns */ - | (0 << 0 ) /* asyncSize 8-bit bus */ - ; - - emif_regs = (emifregs)DAVINCI_ASYNC_EMIF_CNTRL_BASE; - - emif_regs->AWCCR |= 0x10000000; - emif_regs->AB1CR = acfg1; /* 0x08244128 */; - emif_regs->AB2CR = acfg2; - emif_regs->AB3CR = acfg3; - emif_regs->AB4CR = acfg4; - emif_regs->NANDFCR = 0x00000101; + /* All EMIF initialization is done in lowlevel_init.S + * and config values are in the board config files + */ } int board_nand_init(struct nand_chip *nand) |