* Briefly these are bitmasks of controller cycles.
*/
#define READ_PAGE_CMD_CODE 0x7EE0
+#define READ_ONFI_PARAM_CMD_CODE 0x4860
#define PROGRAM_PAGE_CMD_CODE 0x7FC0
#define ERASE_CMD_CODE 0x4EC0
#define READ_ID_CMD_CODE 0x4804
/* NFC ECC mode define */
#define ECC_BYPASS 0
#define ECC_45_BYTE 6
+#define ECC_60_BYTE 7
/*** Register Mask and bit definitions */
int alt_buf;
#define ALT_BUF_ID 1
#define ALT_BUF_STAT 2
+#define ALT_BUF_ONFI 3
struct clk *clk;
};
#define mtd_to_nfc(_mtd) \
(struct vf610_nfc *)((struct nand_chip *)_mtd->priv)->priv
-static u8 bbt_pattern[] = {'B', 'b', 't', '0' };
-static u8 mirror_pattern[] = {'1', 't', 'b', 'B' };
-
-static struct nand_bbt_descr bbt_main_descr = {
- .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
- NAND_BBT_2BIT | NAND_BBT_VERSION,
- .offs = 11,
- .len = 4,
- .veroffs = 15,
- .maxblocks = 4,
- .pattern = bbt_pattern,
-};
-
-static struct nand_bbt_descr bbt_mirror_descr = {
- .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
- NAND_BBT_2BIT | NAND_BBT_VERSION,
- .offs = 11,
- .len = 4,
- .veroffs = 15,
- .maxblocks = 4,
- .pattern = mirror_pattern,
-};
+#if defined(CONFIG_SYS_NAND_VF610_NFC_45_ECC_BYTES)
+#define ECC_HW_MODE ECC_45_BYTE
-static struct nand_ecclayout vf610_nfc_ecc45 = {
+static struct nand_ecclayout vf610_nfc_ecc = {
.eccbytes = 45,
.eccpos = {19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31,
{.offset = 8,
.length = 11} }
};
+#elif defined(CONFIG_SYS_NAND_VF610_NFC_60_ECC_BYTES)
+#define ECC_HW_MODE ECC_60_BYTE
+
+static struct nand_ecclayout vf610_nfc_ecc = {
+ .eccbytes = 60,
+ .eccpos = { 4, 5, 6, 7, 8, 9, 10, 11,
+ 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 49, 50, 51,
+ 52, 53, 54, 55, 56, 57, 58, 59,
+ 60, 61, 62, 63 },
+ .oobfree = {
+ {.offset = 2,
+ .length = 2} }
+};
+#endif
static inline u32 vf610_nfc_read(struct mtd_info *mtd, uint reg)
{
vf610_nfc_transfer_size(nfc->regs, page_sz);
vf610_nfc_send_commands(nfc->regs, NAND_CMD_SEQIN,
command, PROGRAM_PAGE_CMD_CODE);
- vf610_nfc_ecc_mode(mtd, ECC_45_BYTE);
+ vf610_nfc_ecc_mode(mtd, ECC_HW_MODE);
break;
case NAND_CMD_RESET:
vf610_nfc_send_commands(nfc->regs, NAND_CMD_READ0,
NAND_CMD_READSTART, READ_PAGE_CMD_CODE);
vf610_nfc_addr_cycle(mtd, column, page);
- vf610_nfc_ecc_mode(mtd, ECC_45_BYTE);
+ vf610_nfc_ecc_mode(mtd, ECC_HW_MODE);
+ break;
+
+ case NAND_CMD_PARAM:
+ nfc->alt_buf = ALT_BUF_ONFI;
+ vf610_nfc_transfer_size(nfc->regs, 768);
+ vf610_nfc_send_command(nfc->regs, NAND_CMD_PARAM,
+ READ_ONFI_PARAM_CMD_CODE);
+ vf610_nfc_set_field(mtd, NFC_ROW_ADDR, ROW_ADDR_MASK,
+ ROW_ADDR_SHIFT, column);
+ vf610_nfc_ecc_mode(mtd, ECC_BYPASS);
break;
case NAND_CMD_ERASE1:
case NAND_CMD_READID:
nfc->alt_buf = ALT_BUF_ID;
+ nfc->column = 0;
vf610_nfc_transfer_size(nfc->regs, 0);
vf610_nfc_send_command(nfc->regs, command, READ_ID_CMD_CODE);
+ vf610_nfc_set_field(mtd, NFC_ROW_ADDR, ROW_ADDR_MASK,
+ ROW_ADDR_SHIFT, column);
break;
case NAND_CMD_STATUS:
struct vf610_nfc *nfc = mtd_to_nfc(mtd);
uint c = nfc->column;
- switch (nfc->alt_buf) {
- case ALT_BUF_ID:
- *buf = vf610_nfc_get_id(mtd, c);
- break;
- case ALT_BUF_STAT:
- *buf = vf610_nfc_get_status(mtd);
- break;
- default:
- vf610_nfc_memcpy(buf, nfc->regs + NFC_MAIN_AREA(0) + c, len);
- break;
- }
+ /* Alternate buffers are only supported through read_byte */
+ if (nfc->alt_buf)
+ return;
+
+ vf610_nfc_memcpy(buf, nfc->regs + NFC_MAIN_AREA(0) + c, len);
nfc->column += len;
}
/* Read byte from NFC buffers */
static u8 vf610_nfc_read_byte(struct mtd_info *mtd)
{
+ struct vf610_nfc *nfc = mtd_to_nfc(mtd);
u8 tmp;
- vf610_nfc_read_buf(mtd, &tmp, sizeof(tmp));
+ uint c = nfc->column;
+
+ switch (nfc->alt_buf) {
+ case ALT_BUF_ID:
+ tmp = vf610_nfc_get_id(mtd, c);
+ break;
+ case ALT_BUF_STAT:
+ tmp = vf610_nfc_get_status(mtd);
+ break;
+ case ALT_BUF_ONFI:
+#ifdef __LITTLE_ENDIAN
+ /* Reverse byte since the controller uses big endianness */
+ c = nfc->column ^ 0x3;
+ tmp = *((u8 *)(nfc->regs + NFC_MAIN_AREA(0) + c));
+ break;
+#endif
+ default:
+ tmp = *((u8 *)(nfc->regs + NFC_MAIN_AREA(0) + c));
+ break;
+ }
+ nfc->column++;
return tmp;
}
mtd->priv = chip;
chip->priv = nfc;
- if (cfg.width == 16) {
+ if (cfg.width == 16)
chip->options |= NAND_BUSWIDTH_16;
- vf610_nfc_set(mtd, NFC_FLASH_CONFIG, CONFIG_16BIT);
- } else {
- chip->options &= ~NAND_BUSWIDTH_16;
- vf610_nfc_clear(mtd, NFC_FLASH_CONFIG, CONFIG_16BIT);
- }
+
+ /* Use 8-bit mode during initialization */
+ vf610_nfc_clear(mtd, NFC_FLASH_CONFIG, CONFIG_16BIT);
/* Disable subpage writes as we do not provide ecc->hwctl */
chip->options |= NAND_NO_SUBPAGE_WRITE;
/* Bad block options. */
if (cfg.flash_bbt)
- chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_CREATE;
-
- chip->bbt_td = &bbt_main_descr;
- chip->bbt_md = &bbt_mirror_descr;
+ chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB |
+ NAND_BBT_CREATE;
/* Set configuration register. */
vf610_nfc_clear(mtd, NFC_FLASH_CONFIG, CONFIG_ADDR_AUTO_INCR_BIT);
goto error;
}
+ if (cfg.width == 16)
+ vf610_nfc_set(mtd, NFC_FLASH_CONFIG, CONFIG_16BIT);
+
chip->ecc.mode = NAND_ECC_SOFT; /* default */
/* Single buffer only, max 256 OOB minus ECC status */
goto error;
}
- chip->ecc.layout = &vf610_nfc_ecc45;
+ /* Current HW ECC layouts only use 64 bytes of OOB */
+ if (mtd->oobsize > 64)
+ mtd->oobsize = 64;
/* propagate ecc.layout to mtd_info */
mtd->ecclayout = chip->ecc.layout;
chip->ecc.write_page = vf610_nfc_write_page;
chip->ecc.mode = NAND_ECC_HW;
- chip->ecc.bytes = 45;
chip->ecc.size = PAGE_2K;
+ chip->ecc.layout = &vf610_nfc_ecc;
+#if defined(CONFIG_SYS_NAND_VF610_NFC_45_ECC_BYTES)
chip->ecc.strength = 24;
+ chip->ecc.bytes = 45;
+#elif defined(CONFIG_SYS_NAND_VF610_NFC_60_ECC_BYTES)
+ chip->ecc.strength = 32;
+ chip->ecc.bytes = 60;
+#endif
/* Enable ECC_STATUS */
vf610_nfc_set(mtd, NFC_FLASH_CONFIG, CONFIG_ECC_SRAM_REQ_BIT);