Commit 1d9d5f5a authored by Mikhail Kshevetskiy's avatar Mikhail Kshevetskiy Committed by Miquel Raynal
Browse files

mtd: spinand: add Foresee F35SQB002G flash support 



Add support of Foresee F35SQB002G spinand flash

Signed-off-by: default avatarMikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 44a2f49b

drivers/mtd/nand/spi/foresee.c

+34 −0
Original line number Diff line number Diff line
@@ -11,6 +11,11 @@ 


#define SPINAND_MFR_FORESEE		0xCD



#define F35SQB002G_STATUS_ECC_MASK		(7 << 4)

#define F35SQB002G_STATUS_ECC_NO_BITFLIPS	(0 << 4)

#define F35SQB002G_STATUS_ECC_1_3_BITFLIPS	(1 << 4)

#define F35SQB002G_STATUS_ECC_UNCOR_ERROR	(7 << 4)



static SPINAND_OP_VARIANTS(read_cache_variants,

		SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),

		SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
@@ -70,6 +75,25 @@ static int f35sqa002g_ecc_get_status(struct spinand_device *spinand, u8 status) 
	return -EBADMSG;

}



static int f35sqb002g_ecc_get_status(struct spinand_device *spinand, u8 status)

{

	switch (status & F35SQB002G_STATUS_ECC_MASK) {

	case F35SQB002G_STATUS_ECC_NO_BITFLIPS:

		return 0;



	case F35SQB002G_STATUS_ECC_1_3_BITFLIPS:

		return 3;



	case F35SQB002G_STATUS_ECC_UNCOR_ERROR:

		return -EBADMSG;



	default: /* (2 << 4) through (6 << 4) are 4-8 corrected errors */

		return ((status & F35SQB002G_STATUS_ECC_MASK) >> 4) + 2;

	}



	return -EINVAL;

}



static const struct spinand_info foresee_spinand_table[] = {

	SPINAND_INFO("F35SQA002G",

		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x72, 0x72),
@@ -91,6 +115,16 @@ static const struct spinand_info foresee_spinand_table[] = { 
		     SPINAND_HAS_QE_BIT,

		     SPINAND_ECCINFO(&f35sqa002g_ooblayout,

				     f35sqa002g_ecc_get_status)),

	SPINAND_INFO("F35SQB002G",

		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x52, 0x52),

		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),

		     NAND_ECCREQ(8, 512),

		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,

					      &write_cache_variants,

					      &update_cache_variants),

		     SPINAND_HAS_QE_BIT,

		     SPINAND_ECCINFO(&f35sqa002g_ooblayout,

				     f35sqb002g_ecc_get_status)),

};



static const struct spinand_manufacturer_ops foresee_spinand_manuf_ops = {