diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/mxc_nand.c | 617 |
1 files changed, 546 insertions, 71 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index b2b612e..9633858 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -22,27 +22,65 @@ #include <nand.h> #include <linux/err.h> #include <asm/io.h> -#ifdef CONFIG_MX27 +#if defined(CONFIG_MX27) || defined(CONFIG_MX25) #include <asm/arch/imx-regs.h> #endif #define DRIVER_NAME "mxc_nand" +/* + * TODO: Use same register defs here as nand_spl mxc nand driver. + */ +/* + * Register map and bit definitions for the Freescale NAND Flash Controller + * present in various i.MX devices. + * + * MX31 and MX27 have version 1 which has + * 4 512 byte main buffers and + * 4 16 byte spare buffers + * to support up to 2K byte pagesize nand. + * Reading or writing a 2K page requires 4 FDI/FDO cycles. + * + * MX25 has version 1.1 which has + * 8 512 byte main buffers and + * 8 64 byte spare buffers + * to support up to 4K byte pagesize nand. + * Reading or writing a 2K or 4K page requires only 1 FDI/FDO cycle. + * Also some of registers are moved and/or changed meaning as seen below. + */ +#if defined(CONFIG_MX31) || defined(CONFIG_MX27) +#define MXC_NFC_V1 +#elif defined(CONFIG_MX25) +#define MXC_NFC_V1_1 +#else +#warning "MXC NFC version not defined" +#endif + +#if defined(MXC_NFC_V1) +#define NAND_MXC_NR_BUFS 4 +#define NAND_MXC_SPARE_BUF_SIZE 16 +#define NAND_MXC_REG_OFFSET 0xe00 +#define is_mxc_nfc_11() 0 +#elif defined(MXC_NFC_V1_1) +#define NAND_MXC_NR_BUFS 8 +#define NAND_MXC_SPARE_BUF_SIZE 64 +#define NAND_MXC_REG_OFFSET 0x1e00 +#define is_mxc_nfc_11() 1 +#else +#error "define CONFIG_NAND_MXC_VXXX to use mtd mxc nand driver" +#endif struct nfc_regs { -/* NFC RAM BUFFER Main area 0 */ - uint8_t main_area0[0x200]; - uint8_t main_area1[0x200]; - uint8_t main_area2[0x200]; - uint8_t main_area3[0x200]; -/* SPARE BUFFER Spare area 0 */ - uint8_t spare_area0[0x10]; - uint8_t spare_area1[0x10]; - uint8_t spare_area2[0x10]; - uint8_t spare_area3[0x10]; - uint8_t pad[0x5c0]; -/* NFC registers */ + uint8_t main_area[NAND_MXC_NR_BUFS][0x200]; + uint8_t spare_area[NAND_MXC_NR_BUFS][NAND_MXC_SPARE_BUF_SIZE]; + /* + * reserved size is offset of nfc registers + * minus total main and spare sizes + */ + uint8_t reserved1[NAND_MXC_REG_OFFSET + - NAND_MXC_NR_BUFS * (512 + NAND_MXC_SPARE_BUF_SIZE)]; +#if defined(MXC_NFC_V1) uint16_t nfc_buf_size; - uint16_t reserved; + uint16_t reserved2; uint16_t nfc_buf_addr; uint16_t nfc_flash_addr; uint16_t nfc_flash_cmd; @@ -56,6 +94,30 @@ struct nfc_regs { uint16_t nfc_nf_wrprst; uint16_t nfc_config1; uint16_t nfc_config2; +#elif defined(MXC_NFC_V1_1) + uint16_t reserved2[2]; + uint16_t nfc_buf_addr; + uint16_t nfc_flash_addr; + uint16_t nfc_flash_cmd; + uint16_t nfc_config; + uint16_t nfc_ecc_status_result; + uint16_t nfc_ecc_status_result2; + uint16_t nfc_spare_area_size; + uint16_t nfc_wrprot; + uint16_t reserved3[2]; + uint16_t nfc_nf_wrprst; + uint16_t nfc_config1; + uint16_t nfc_config2; + uint16_t reserved4; + uint16_t nfc_unlockstart_blkaddr; + uint16_t nfc_unlockend_blkaddr; + uint16_t nfc_unlockstart_blkaddr1; + uint16_t nfc_unlockend_blkaddr1; + uint16_t nfc_unlockstart_blkaddr2; + uint16_t nfc_unlockend_blkaddr2; + uint16_t nfc_unlockstart_blkaddr3; + uint16_t nfc_unlockend_blkaddr3; +#endif }; /* @@ -100,6 +162,11 @@ struct nfc_regs { */ #define NFC_INT 0x8000 +#ifdef MXC_NFC_V1_1 +#define NFC_4_8N_ECC (1 << 0) +#else +#define NFC_4_8N_ECC 0 +#endif #define NFC_SP_EN (1 << 2) #define NFC_ECC_EN (1 << 3) #define NFC_BIG (1 << 5) @@ -119,6 +186,7 @@ struct mxc_nand_host { int pagesize_2k; int clk_act; uint16_t col_addr; + unsigned int page_addr; }; static struct mxc_nand_host mxc_host; @@ -135,26 +203,45 @@ static struct mxc_nand_host *host = &mxc_host; #define SPARE_SINGLEBIT_ERROR 0x1 /* OOB placement block for use with hardware ecc generation */ -#ifdef CONFIG_MXC_NAND_HWECC +#if defined(MXC_NFC_V1) +#ifndef CONFIG_SYS_NAND_LARGEPAGE static struct nand_ecclayout nand_hw_eccoob = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, - .oobfree = {{0, 5}, {11, 5}, } + .oobfree = { {0, 5}, {11, 5}, } }; #else -static struct nand_ecclayout nand_soft_eccoob = { - .eccbytes = 6, - .eccpos = {6, 7, 8, 9, 10, 11}, - .oobfree = {{0, 5}, {12, 4}, } +static struct nand_ecclayout nand_hw_eccoob2k = { + .eccbytes = 20, + .eccpos = { + 6, 7, 8, 9, 10, + 22, 23, 24, 25, 26, + 38, 39, 40, 41, 42, + 54, 55, 56, 57, 58, + }, + .oobfree = { {2, 4}, {11, 11}, {27, 11}, {43, 11}, {59, 5} }, }; #endif - -static struct nand_ecclayout nand_hw_eccoob_largepage = { - .eccbytes = 20, - .eccpos = {6, 7, 8, 9, 10, 22, 23, 24, 25, 26, - 38, 39, 40, 41, 42, 54, 55, 56, 57, 58}, - .oobfree = {{2, 4}, {11, 10}, {27, 10}, {43, 10}, {59, 5}, } +#elif defined(MXC_NFC_V1_1) +#ifndef CONFIG_SYS_NAND_LARGEPAGE +static struct nand_ecclayout nand_hw_eccoob = { + .eccbytes = 9, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, + .oobfree = { {2, 5} } }; +#else +static struct nand_ecclayout nand_hw_eccoob2k = { + .eccbytes = 36, + .eccpos = { + 7, 8, 9, 10, 11, 12, 13, 14, 15, + 23, 24, 25, 26, 27, 28, 29, 30, 31, + 39, 40, 41, 42, 43, 44, 45, 46, 47, + 55, 56, 57, 58, 59, 60, 61, 62, 63, + }, + .oobfree = { {2, 5}, {16, 7}, {32, 7}, {48, 7} }, +}; +#endif +#endif #ifdef CONFIG_MX27 static int is_16bit_nand(void) @@ -178,6 +265,17 @@ static int is_16bit_nand(void) else return 0; } +#elif defined(CONFIG_MX25) +static int is_16bit_nand(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + if (readl(&ccm->rcsr) & CCM_RCSR_NF_16BIT_SEL) + return 1; + else + return 0; +} #else #warning "8/16 bit NAND autodetection not supported" static int is_16bit_nand(void) @@ -258,7 +356,24 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr) static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id, int spare_only) { - MTDDEBUG(MTD_DEBUG_LEVEL3, "send_prog_page (%d)\n", spare_only); + if (spare_only) + MTDDEBUG(MTD_DEBUG_LEVEL1, "send_prog_page (%d)\n", spare_only); + + if (is_mxc_nfc_11()) { + int i; + /* + * The controller copies the 64 bytes of spare data from + * the first 16 bytes of each of the 4 64 byte spare buffers. + * Copy the contiguous data starting in spare_area[0] to + * the four spare area buffers. + */ + for (i = 1; i < 4; i++) { + void __iomem *src = &host->regs->spare_area[0][i * 16]; + void __iomem *dst = &host->regs->spare_area[i][0]; + + mxc_nand_memcpy32(dst, src, 16); + } + } writew(buf_id, &host->regs->nfc_buf_addr); @@ -303,6 +418,22 @@ static void send_read_page(struct mxc_nand_host *host, uint8_t buf_id, /* Wait for operation to complete */ wait_op_done(host, TROP_US_DELAY, spare_only); + + if (is_mxc_nfc_11()) { + int i; + + /* + * The controller copies the 64 bytes of spare data to + * the first 16 bytes of each of the 4 spare buffers. + * Make the data contiguous starting in spare_area[0]. + */ + for (i = 1; i < 4; i++) { + void __iomem *src = &host->regs->spare_area[i][0]; + void __iomem *dst = &host->regs->spare_area[0][i * 16]; + + mxc_nand_memcpy32(dst, src, 16); + } + } } /* Request the NANDFC to perform a read of the NAND device ID. */ @@ -330,7 +461,7 @@ static void send_read_id(struct mxc_nand_host *host) */ static uint16_t get_dev_status(struct mxc_nand_host *host) { - void __iomem *main_buf = host->regs->main_area1; + void __iomem *main_buf = host->regs->main_area[1]; uint32_t store; uint16_t ret, tmp; /* Issue status request to NAND device */ @@ -379,6 +510,330 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode) */ } +#ifdef MXC_NFC_V1_1 +static void _mxc_nand_enable_hwecc(struct mtd_info *mtd, int on) +{ + struct nand_chip *nand_chip = mtd->priv; + struct mxc_nand_host *host = nand_chip->priv; + uint16_t tmp = readw(&host->regs->nfc_config1); + + if (on) + tmp |= NFC_ECC_EN; + else + tmp &= ~NFC_ECC_EN; + writew(tmp, &host->regs->nfc_config1); +} + +static int mxc_nand_read_oob_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + int page, int sndcmd) +{ + struct mxc_nand_host *host = chip->priv; + uint8_t *buf = chip->oob_poi; + int length = mtd->oobsize; + int eccpitch = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *bufpoi = buf; + int i, toread; + + MTDDEBUG(MTD_DEBUG_LEVEL0, + "%s: Reading OOB area of page %u to oob %p\n", + __FUNCTION__, host->page_addr, buf); + + chip->cmdfunc(mtd, NAND_CMD_READOOB, mtd->writesize, page); + for (i = 0; i < chip->ecc.steps; i++) { + toread = min_t(int, length, chip->ecc.prepad); + if (toread) { + chip->read_buf(mtd, bufpoi, toread); + bufpoi += toread; + length -= toread; + } + bufpoi += chip->ecc.bytes; + host->col_addr += chip->ecc.bytes; + length -= chip->ecc.bytes; + + toread = min_t(int, length, chip->ecc.postpad); + if (toread) { + chip->read_buf(mtd, bufpoi, toread); + bufpoi += toread; + length -= toread; + } + } + if (length > 0) + chip->read_buf(mtd, bufpoi, length); + + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READOOB, + mtd->writesize + chip->ecc.prepad, page); + bufpoi = buf + chip->ecc.prepad; + length = mtd->oobsize - chip->ecc.prepad; + for (i = 0; i < chip->ecc.steps; i++) { + toread = min_t(int, length, chip->ecc.bytes); + chip->read_buf(mtd, bufpoi, toread); + bufpoi += eccpitch; + length -= eccpitch; + host->col_addr += chip->ecc.postpad + chip->ecc.prepad; + } + _mxc_nand_enable_hwecc(mtd, 1); + return 1; +} + +static int mxc_nand_read_page_raw_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf, + int page) +{ + struct mxc_nand_host *host = chip->priv; + int eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *oob = chip->oob_poi; + int steps, size; + int n; + + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, host->page_addr); + + for (n = 0, steps = chip->ecc.steps; steps > 0; n++, steps--) { + host->col_addr = n * eccsize; + chip->read_buf(mtd, buf, eccsize); + buf += eccsize; + + host->col_addr = mtd->writesize + n * eccpitch; + if (chip->ecc.prepad) { + chip->read_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + chip->read_buf(mtd, oob, eccbytes); + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->read_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + size = mtd->oobsize - (oob - chip->oob_poi); + if (size) + chip->read_buf(mtd, oob, size); + _mxc_nand_enable_hwecc(mtd, 0); + + return 0; +} + +static int mxc_nand_read_page_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf, + int page) +{ + struct mxc_nand_host *host = chip->priv; + int n, eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + int eccsteps = chip->ecc.steps; + uint8_t *p = buf; + uint8_t *oob = chip->oob_poi; + + MTDDEBUG(MTD_DEBUG_LEVEL1, "Reading page %u to buf %p oob %p\n", + host->page_addr, buf, oob); + + /* first read out the data area and the available portion of OOB */ + for (n = 0; eccsteps; n++, eccsteps--, p += eccsize) { + int stat; + + host->col_addr = n * eccsize; + + chip->read_buf(mtd, p, eccsize); + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->read_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + stat = chip->ecc.correct(mtd, p, oob, NULL); + + if (stat < 0) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += stat; + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->read_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + /* Calculate remaining oob bytes */ + n = mtd->oobsize - (oob - chip->oob_poi); + if (n) + chip->read_buf(mtd, oob, n); + + /* Then switch ECC off and read the OOB area to get the ECC code */ + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READOOB, mtd->writesize, host->page_addr); + eccsteps = chip->ecc.steps; + oob = chip->oob_poi + chip->ecc.prepad; + for (n = 0; eccsteps; n++, eccsteps--, p += eccsize) { + host->col_addr = mtd->writesize + + n * eccpitch + + chip->ecc.prepad; + chip->read_buf(mtd, oob, eccbytes); + oob += eccbytes + chip->ecc.postpad; + } + _mxc_nand_enable_hwecc(mtd, 1); + return 0; +} + +static int mxc_nand_write_oob_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, int page) +{ + struct mxc_nand_host *host = chip->priv; + int eccpitch = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; + int length = mtd->oobsize; + int i, len, status, steps = chip->ecc.steps; + const uint8_t *bufpoi = chip->oob_poi; + + chip->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->writesize, page); + for (i = 0; i < steps; i++) { + len = min_t(int, length, eccpitch); + + chip->write_buf(mtd, bufpoi, len); + bufpoi += len; + length -= len; + host->col_addr += chip->ecc.prepad + chip->ecc.postpad; + } + if (length > 0) + chip->write_buf(mtd, bufpoi, length); + + chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); + status = chip->waitfunc(mtd, chip); + return status & NAND_STATUS_FAIL ? -EIO : 0; +} + +static void mxc_nand_write_page_raw_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + const uint8_t *buf) +{ + struct mxc_nand_host *host = chip->priv; + int eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *oob = chip->oob_poi; + int steps, size; + int n; + + for (n = 0, steps = chip->ecc.steps; steps > 0; n++, steps--) { + host->col_addr = n * eccsize; + chip->write_buf(mtd, buf, eccsize); + buf += eccsize; + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->write_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + host->col_addr += eccbytes; + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->write_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + size = mtd->oobsize - (oob - chip->oob_poi); + if (size) + chip->write_buf(mtd, oob, size); +} + +static void mxc_nand_write_page_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + const uint8_t *buf) +{ + struct mxc_nand_host *host = chip->priv; + int i, n, eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + int eccsteps = chip->ecc.steps; + const uint8_t *p = buf; + uint8_t *oob = chip->oob_poi; + + chip->ecc.hwctl(mtd, NAND_ECC_WRITE); + + for (i = n = 0; + eccsteps; + n++, eccsteps--, i += eccbytes, p += eccsize) { + host->col_addr = n * eccsize; + + chip->write_buf(mtd, p, eccsize); + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->write_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + chip->write_buf(mtd, oob, eccbytes); + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->write_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + /* Calculate remaining oob bytes */ + i = mtd->oobsize - (oob - chip->oob_poi); + if (i) + chip->write_buf(mtd, oob, i); +} + +static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat, + u_char *read_ecc, u_char *calc_ecc) +{ + struct nand_chip *nand_chip = mtd->priv; + struct mxc_nand_host *host = nand_chip->priv; + uint16_t ecc_status = readw(&host->regs->nfc_ecc_status_result); + int subpages = mtd->writesize / nand_chip->subpagesize; + int pg2blk_shift = nand_chip->phys_erase_shift - + nand_chip->page_shift; + + do { + if ((ecc_status & 0xf) > 4) { + static int last_bad = -1; + + if (last_bad != host->page_addr >> pg2blk_shift) { + last_bad = host->page_addr >> pg2blk_shift; + printk(KERN_DEBUG + "MXC_NAND: HWECC uncorrectable ECC error" + " in block %u page %u subpage %d\n", + last_bad, host->page_addr, + mtd->writesize / nand_chip->subpagesize + - subpages); + } + return -1; + } + ecc_status >>= 4; + subpages--; + } while (subpages > 0); + + return 0; +} +#else +#define mxc_nand_read_page_syndrome NULL +#define mxc_nand_read_page_raw_syndrome NULL +#define mxc_nand_read_oob_syndrome NULL +#define mxc_nand_write_page_syndrome NULL +#define mxc_nand_write_page_raw_syndrome NULL +#define mxc_nand_write_oob_syndrome NULL +#define mxc_nfc_11_nand_correct_data NULL + static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { @@ -400,6 +855,9 @@ static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat, return 0; } +#endif + + static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) @@ -415,9 +873,9 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd) uint8_t ret = 0; uint16_t col; uint16_t __iomem *main_buf = - (uint16_t __iomem *)host->regs->main_area0; + (uint16_t __iomem *)host->regs->main_area[0]; uint16_t __iomem *spare_buf = - (uint16_t __iomem *)host->regs->spare_area0; + (uint16_t __iomem *)host->regs->spare_area[0]; union { uint16_t word; uint8_t bytes[2]; @@ -464,9 +922,10 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd) col += mtd->writesize; if (col < mtd->writesize) { - p = (uint16_t __iomem *)(host->regs->main_area0 + (col >> 1)); + p = (uint16_t __iomem *)(host->regs->main_area[0] + + (col >> 1)); } else { - p = (uint16_t __iomem *)(host->regs->spare_area0 + + p = (uint16_t __iomem *)(host->regs->spare_area[0] + ((col - mtd->writesize) >> 1)); } @@ -525,9 +984,9 @@ static void mxc_nand_write_buf(struct mtd_info *mtd, void __iomem *p; if (col < mtd->writesize) { - p = host->regs->main_area0 + (col & ~3); + p = host->regs->main_area[0] + (col & ~3); } else { - p = host->regs->spare_area0 - + p = host->regs->spare_area[0] - mtd->writesize + (col & ~3); } @@ -595,9 +1054,9 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) void __iomem *p; if (col < mtd->writesize) { - p = host->regs->main_area0 + (col & ~3); + p = host->regs->main_area[0] + (col & ~3); } else { - p = host->regs->spare_area0 - + p = host->regs->spare_area[0] - mtd->writesize + (col & ~3); } @@ -683,7 +1142,7 @@ static void mxc_nand_select_chip(struct mtd_info *mtd, int chip) * Used by the upper layer to write command to NAND Flash for * different operations to be carried out on NAND Flash */ -static void mxc_nand_command(struct mtd_info *mtd, unsigned command, +void mxc_nand_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *nand_chip = mtd->priv; @@ -705,6 +1164,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, break; case NAND_CMD_READ0: + host->page_addr = page_addr; host->col_addr = column; host->spare_only = false; break; @@ -750,7 +1210,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, case NAND_CMD_PAGEPROG: send_prog_page(host, 0, host->spare_only); - if (host->pagesize_2k) { + if (host->pagesize_2k && !is_mxc_nfc_11()) { /* data in 4 areas datas */ send_prog_page(host, 1, host->spare_only); send_prog_page(host, 2, host->spare_only); @@ -780,30 +1240,12 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, /* Write out page address, if necessary */ if (page_addr != -1) { - /* paddr_0 - p_addr_7 */ - send_addr(host, (page_addr & 0xff)); - - if (host->pagesize_2k) { - send_addr(host, (page_addr >> 8) & 0xFF); - if (mtd->size >= 0x10000000) { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - send_addr(host, (page_addr >> 16) & 0xff); - } else { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - } - } else { - /* One more address cycle for higher density devices */ - if (mtd->size >= 0x4000000) { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - send_addr(host, (page_addr >> 16) & 0xff); - } else { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - } - } + u32 page_mask = nand_chip->pagemask; + do { + send_addr(host, page_addr & 0xFF); + page_addr >>= 8; + page_mask >>= 8; + } while (page_mask); } /* Command post-processing step */ @@ -819,9 +1261,11 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, send_cmd(host, NAND_CMD_READSTART); /* read for each AREA */ send_read_page(host, 0, host->spare_only); - send_read_page(host, 1, host->spare_only); - send_read_page(host, 2, host->spare_only); - send_read_page(host, 3, host->spare_only); + if (!is_mxc_nfc_11()) { + send_read_page(host, 1, host->spare_only); + send_read_page(host, 2, host->spare_only); + send_read_page(host, 3, host->spare_only); + } } else { send_read_page(host, 0, host->spare_only); } @@ -843,6 +1287,24 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, } } +#ifdef MXC_NFC_V1_1 +static void mxc_setup_config1(void) +{ + uint16_t tmp; + + tmp = readw(&host->regs->nfc_config1); + tmp |= NFC_ONE_CYCLE; + tmp |= NFC_4_8N_ECC; + writew(tmp, &host->regs->nfc_config1); + if (host->pagesize_2k) + writew(64/2, &host->regs->nfc_spare_area_size); + else + writew(16/2, &host->regs->nfc_spare_area_size); +} +#else +#define mxc_setup_config1() +#endif + int board_nand_init(struct nand_chip *this) { struct mtd_info *mtd; @@ -874,10 +1336,23 @@ int board_nand_init(struct nand_chip *this) this->ecc.calculate = mxc_nand_calculate_ecc; this->ecc.hwctl = mxc_nand_enable_hwecc; this->ecc.correct = mxc_nand_correct_data; - this->ecc.mode = NAND_ECC_HW; + if (is_mxc_nfc_11()) { + this->ecc.mode = NAND_ECC_HW_SYNDROME; + this->ecc.read_page = mxc_nand_read_page_syndrome; + this->ecc.read_page_raw = mxc_nand_read_page_raw_syndrome; + this->ecc.read_oob = mxc_nand_read_oob_syndrome; + this->ecc.write_page = mxc_nand_write_page_syndrome; + this->ecc.write_page_raw = mxc_nand_write_page_raw_syndrome; + this->ecc.write_oob = mxc_nand_write_oob_syndrome; + this->ecc.bytes = 9; + this->ecc.prepad = 7; + } else { + this->ecc.mode = NAND_ECC_HW; + } + + host->pagesize_2k = 0; + this->ecc.size = 512; - this->ecc.bytes = 3; - this->ecc.layout = &nand_hw_eccoob; tmp = readw(&host->regs->nfc_config1); tmp |= NFC_ECC_EN; writew(tmp, &host->regs->nfc_config1); @@ -888,7 +1363,6 @@ int board_nand_init(struct nand_chip *this) tmp &= ~NFC_ECC_EN; writew(tmp, &host->regs->nfc_config1); #endif - /* Reset NAND */ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); @@ -911,10 +1385,11 @@ int board_nand_init(struct nand_chip *this) #ifdef CONFIG_SYS_NAND_LARGEPAGE host->pagesize_2k = 1; - this->ecc.layout = &nand_hw_eccoob_largepage; + this->ecc.layout = &nand_hw_eccoob2k; #else host->pagesize_2k = 0; + this->ecc.layout = &nand_hw_eccoob; #endif - + mxc_setup_config1(); return err; } |