Unverified Commit 92094ebc authored by Boris Brezillon's avatar Boris Brezillon Committed by Tudor Ambarus
Browse files

mtd: spi-nor: Add spansion_post_sfdp_fixups() 



Add a spansion_post_sfdp_fixups() function to fix the erase opcode,
erase sector size and set the SNOR_F_4B_OPCODES flag.
This way, all spansion related quirks are placed in the
spansion_post_sfdp_fixups() function.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent 2b12ae1f

drivers/mtd/spi-nor/spi-nor.c

+23 −14
Original line number Diff line number Diff line
@@ -591,18 +591,6 @@ static u8 spi_nor_convert_3to4_erase(u8 opcode) 


static void spi_nor_set_4byte_opcodes(struct spi_nor *nor)

{

	/* Do some manufacturer fixups first */

	switch (JEDEC_MFR(nor->info)) {

	case SNOR_MFR_SPANSION:

		/* No small sector erase for 4-byte command set */

		nor->erase_opcode = SPINOR_OP_SE;

		nor->mtd.erasesize = nor->info->sector_size;

		break;



	default:

		break;

	}



	nor->read_opcode = spi_nor_convert_3to4_read(nor->read_opcode);

	nor->program_opcode = spi_nor_convert_3to4_program(nor->program_opcode);

	nor->erase_opcode = spi_nor_convert_3to4_erase(nor->erase_opcode);
@@ -4304,6 +4292,19 @@ static void spi_nor_info_init_params(struct spi_nor *nor) 
	spi_nor_init_uniform_erase_map(map, erase_mask, params->size);

}



static void spansion_post_sfdp_fixups(struct spi_nor *nor)

{

	struct mtd_info *mtd = &nor->mtd;



	if (mtd->size <= SZ_16M)

		return;



	nor->flags |= SNOR_F_4B_OPCODES;

	/* No small sector erase for 4-byte command set */

	nor->erase_opcode = SPINOR_OP_SE;

	nor->mtd.erasesize = nor->info->sector_size;

}



/**

 * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings

 * after SFDP has been parsed (is also called for SPI NORs that do not
@@ -4316,6 +4317,15 @@ static void spi_nor_info_init_params(struct spi_nor *nor) 
 */

static void spi_nor_post_sfdp_fixups(struct spi_nor *nor)

{

	switch (JEDEC_MFR(nor->info)) {

	case SNOR_MFR_SPANSION:

		spansion_post_sfdp_fixups(nor);

		break;



	default:

		break;

	}



	if (nor->info->fixups && nor->info->fixups->post_sfdp)

		nor->info->fixups->post_sfdp(nor);

}
@@ -4862,8 +4872,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, 
		nor->addr_width = 3;

	}



	if (info->flags & SPI_NOR_4B_OPCODES ||

	    (JEDEC_MFR(info) == SNOR_MFR_SPANSION && mtd->size > SZ_16M))

	if (info->flags & SPI_NOR_4B_OPCODES)

		nor->flags |= SNOR_F_4B_OPCODES;



	if (nor->addr_width == 4 && nor->flags & SNOR_F_4B_OPCODES &&

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