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ipq40xx: spi: Add support for 4Gb Toshiba-TC58CVG2S0F SPI NAND flash

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Change-Id: I6c7427fec4bd486c572547a844f22d941f777bf5
Signed-off-by: Sasirekaa Madhesu <smadhesu@codeaurora.org>
This commit is contained in:
Sasirekaa Madhesu 2018-03-19 16:21:32 +05:30
parent 7bb2910d6a
commit 9400a07874
2 changed files with 41 additions and 1 deletions
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41
drivers/mtd/spi/spi_nand.c
View file

@ -25,6 +25,8 @@
#define TIMEOUT 5000
#define MFID_GIGA 0xc8
#define MFID_ATO 0x9b
#define TOSHIBA_NORM_READ_MASK 0x1F
/* Macronix Specific Defines */
#define MFID_MACRONIX 0xc2
#define MACRONIX_WRAP ((0 & 0x3) << 6)
@ -38,9 +40,11 @@ struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
int verify_3bit_ecc(int status);
int verify_2bit_ecc(int status);
int verify_dummy_ecc(int status);
int verify_2bit_toshiba_ecc(int status);
void gigadevice_norm_read_cmd(u8 *cmd, int column);
void macronix_norm_read_cmd(u8 *cmd, int column);
void winbond_norm_read_cmd(u8 *cmd, int column);
void toshiba_norm_read_cmd(u8 *cmd, int column);
int spi_nand_die_select(struct mtd_info *mtd, struct spi_flash *flash,
int die_id);
@ -143,7 +147,22 @@ static struct spi_nand_flash_params spi_nand_flash_tbl[] = {
.die_select = spi_nand_die_select,
.name = "W25M02GV",
},
{
.id = { 0x00, 0x98, 0xcd, 0x98 },
.page_size = 4096,
.erase_size = 0x00040000,
.no_of_dies = 1,
.prev_die_id = INT_MAX,
.pages_per_die = 0x20000,
.pages_per_sector = 64,
.nr_sectors = 2048,
.oob_size = 128,
.protec_bpx = 0xC7,
.norm_read_cmd = toshiba_norm_read_cmd,
.verify_ecc = verify_2bit_toshiba_ecc,
.die_select = NULL,
.name = "TC58CVG2S0F",
},
};
struct spi_nand_flash_params *params;
@ -173,6 +192,14 @@ void winbond_norm_read_cmd(u8 *cmd, int column)
cmd[3] = 0;
}
void toshiba_norm_read_cmd(u8 *cmd, int column)
{
cmd[0] = IPQ40XX_SPINAND_CMD_NORM_READ;
cmd[1] = ((u8)(column >> 8) & TOSHIBA_NORM_READ_MASK);
cmd[2] = (u8)(column);
cmd[3] = 0;
}
int spi_nand_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
u8 cmd, u8 poll_bit, u8 *status)
{
@ -576,6 +603,18 @@ int verify_2bit_ecc(int status)
return 0;
}
int verify_2bit_toshiba_ecc(int status)
{
int ecc_status = (status & SPINAND_2BIT_ECC_MASK);
if (ecc_status == SPINAND_2BIT_ECC_ERROR)
return ECC_ERR;
else if (ecc_status == SPINAND_2BIT_ECC_CORRECTED_TOSHIBA)
return ECC_CORRECTED;
else
return 0;
}
int verify_dummy_ecc(int status)
{
return 0;

1
drivers/mtd/spi/spi_nand_dev.h
View file

@ -109,4 +109,5 @@ struct ipq40xx_spinand_info {
#define SPINAND_2BIT_ECC_MASK 0x30
#define SPINAND_2BIT_ECC_ERROR 0x20
#define SPINAND_2BIT_ECC_CORRECTED 0x10
#define SPINAND_2BIT_ECC_CORRECTED_TOSHIBA 0x30
#endif