diff options
| -rw-r--r-- | CHANGELOG | 4 | ||||
| -rw-r--r-- | common/cmd_nand.c | 8 | ||||
| -rw-r--r-- | cpu/ppc4xx/ndfc.c | 39 | ||||
| -rw-r--r-- | drivers/nand/nand.c | 9 | ||||
| -rw-r--r-- | include/configs/sequoia.h | 15 | ||||
| -rw-r--r-- | include/nand.h | 4 |
6 files changed, 58 insertions, 21 deletions
@@ -7,6 +7,10 @@ Changes since U-Boot 1.1.4: * Add (preliminary) support for V38B board +* Add board/cpu specific NAND chip select function to 440 NDFC + Based on idea and implementation from Jeff Mann + Patch by Stefan Roese, 20 Oct 2006 + * PPC405EP: Add support for board configuration of CPC0_PCI register This is needed to be able to configure PerWE*/PCI_INT* pin as PerWE* Patch by Tolunay Orkun, 07 Apr 2006 diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 7042a9c..4fb3b65 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -178,6 +178,14 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) printf("Device %d: %s", dev, nand_info[dev].name); puts("... is now current device\n"); nand_curr_device = dev; + +#ifdef CFG_NAND_SELECT_DEVICE + /* + * Select the chip in the board/cpu specific driver + */ + board_nand_select_device(nand_info[dev].priv, dev); +#endif + return 0; } diff --git a/cpu/ppc4xx/ndfc.c b/cpu/ppc4xx/ndfc.c index 183ab5e..2c44111 100644 --- a/cpu/ppc4xx/ndfc.c +++ b/cpu/ppc4xx/ndfc.c @@ -66,7 +66,7 @@ static void ndfc_hwcontrol(struct mtd_info *mtdinfo, int cmd) static void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; if (hwctl & 0x1) out8(base + NDFC_CMD, byte); @@ -79,7 +79,7 @@ static void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte) static u_char ndfc_read_byte(struct mtd_info *mtdinfo) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; return (in8(base + NDFC_DATA)); } @@ -87,7 +87,7 @@ static u_char ndfc_read_byte(struct mtd_info *mtdinfo) static int ndfc_dev_ready(struct mtd_info *mtdinfo) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; while (!(in32(base + NDFC_STAT) & NDFC_STAT_IS_READY)) ; @@ -111,30 +111,30 @@ static int ndfc_dev_ready(struct mtd_info *mtdinfo) static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; uint32_t *p = (uint32_t *) buf; - for(;len > 0; len -= 4) + for (;len > 0; len -= 4) *p++ = in32(base + NDFC_DATA); } static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; uint32_t *p = (uint32_t *) buf; - for(; len > 0; len -= 4) + for (; len > 0; len -= 4) out32(base + NDFC_DATA, *p++); } static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len) { struct nand_chip *this = mtdinfo->priv; - ulong base = (ulong) this->IO_ADDR_W; + ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc; uint32_t *p = (uint32_t *) buf; - for(; len > 0; len -= 4) + for (; len > 0; len -= 4) if (*p++ != in32(base + NDFC_DATA)) return -1; @@ -142,8 +142,20 @@ static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len } #endif /* #ifndef CONFIG_NAND_SPL */ +void board_nand_select_device(struct nand_chip *nand, int chip) +{ + ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc; + + /* Set NandFlash Core Configuration Register */ + /* 1col x 2 rows */ + out32(base + NDFC_CCR, 0x00000000 | (chip << 24)); +} + void board_nand_init(struct nand_chip *nand) { + int chip = (ulong)nand->IO_ADDR_W & 0x00000003; + ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc; + nand->eccmode = NAND_ECC_SOFT; nand->hwcontrol = ndfc_hwcontrol; @@ -166,10 +178,11 @@ void board_nand_init(struct nand_chip *nand) mtebc(pb0ap, CFG_EBC_PB0AP); #endif - /* Set NandFlash Core Configuration Register */ - /* Chip select 3, 1col x 2 rows */ - out32(CFG_NAND_BASE + NDFC_CCR, 0x00000000 | (CFG_NAND_CS << 24)); - out32(CFG_NAND_BASE + NDFC_BCFG0 + (CFG_NAND_CS << 2), 0x80002222); + /* + * Select required NAND chip in NDFC + */ + board_nand_select_device(nand, chip); + out32(base + NDFC_BCFG0 + (chip << 2), 0x80002222); } #endif diff --git a/drivers/nand/nand.c b/drivers/nand/nand.c index e1781fc..3899045 100644 --- a/drivers/nand/nand.c +++ b/drivers/nand/nand.c @@ -66,8 +66,15 @@ void nand_init(void) size += nand_info[i].size; if (nand_curr_device == -1) nand_curr_device = i; -} + } printf("%lu MiB\n", size / (1024 * 1024)); + +#ifdef CFG_NAND_SELECT_DEVICE + /* + * Select the chip in the board/cpu specific driver + */ + board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device); +#endif } #endif diff --git a/include/configs/sequoia.h b/include/configs/sequoia.h index f67fd91..3a76315 100644 --- a/include/configs/sequoia.h +++ b/include/configs/sequoia.h @@ -134,13 +134,6 @@ #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE) #endif -/*----------------------------------------------------------------------- - * NAND FLASH - *----------------------------------------------------------------------*/ -#define CFG_MAX_NAND_DEVICE 1 -#define NAND_MAX_CHIPS 1 -#define CFG_NAND_BASE CFG_NAND_ADDR - /* * IPL (Initial Program Loader, integrated inside CPU) * Will load first 4k from NAND (SPL) into cache and execute it from there. @@ -406,6 +399,14 @@ #define CFG_EBC_PB2CR (CFG_CPLD | 0x38000) /*----------------------------------------------------------------------- + * NAND FLASH + *----------------------------------------------------------------------*/ +#define CFG_MAX_NAND_DEVICE 1 +#define NAND_MAX_CHIPS 1 +#define CFG_NAND_BASE (CFG_NAND_ADDR + CFG_NAND_CS) +#define CFG_NAND_SELECT_DEVICE 1 /* nand driver supports mutipl. chips */ + +/*----------------------------------------------------------------------- * Cache Configuration *----------------------------------------------------------------------*/ #define CFG_DCACHE_SIZE (32<<10) /* For AMCC 440 CPUs */ diff --git a/include/nand.h b/include/nand.h index 5c7311f..23493f7 100644 --- a/include/nand.h +++ b/include/nand.h @@ -117,4 +117,8 @@ int nand_lock( nand_info_t *meminfo, int tight ); int nand_unlock( nand_info_t *meminfo, ulong start, ulong length ); int nand_get_lock_status(nand_info_t *meminfo, ulong offset); +#ifdef CFG_NAND_SELECT_DEVICE +void board_nand_select_device(struct nand_chip *nand, int chip); +#endif + #endif |