mtd: spi-nor: Add support for Spansion S25FL256L

The S25FL256L is a part of the S25FL-L family and has the same feature set
as S25FL128L except the density.

The datasheet can be found in the following link.
https://www.cypress.com/file/316171/download

The S25FL256L is 32MB NOR Flash that does not support Bank Address
Register. This fixup is activated if CONFIG_SPI_FLASH_BAR is enabled and
returns ENOTSUPP in setup() hook to avoid further ops.

Tested on Xilinx Zynq-7000 FPGA board.

Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index f1b4e5ea8e38ce176051d818400a5b89ac554ede..7572be5e34f38e4a79e5134cc099c340093d1239 100644 (file)
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -3224,6 +3224,21 @@ static struct spi_nor_fixups s25hx_t_fixups = {
        .post_bfpt = s25hx_t_post_bfpt_fixup,
        .post_sfdp = s25hx_t_post_sfdp_fixup,
 };
+
+static int s25fl256l_setup(struct spi_nor *nor, const struct flash_info *info,
+                          const struct spi_nor_flash_parameter *params)
+{
+       return -ENOTSUPP; /* Bank Address Register is not supported */
+}
+
+static void s25fl256l_default_init(struct spi_nor *nor)
+{
+       nor->setup = s25fl256l_setup;
+}
+
+static struct spi_nor_fixups s25fl256l_fixups = {
+       .default_init = s25fl256l_default_init,
+};
 #endif
 
 #ifdef CONFIG_SPI_FLASH_S28HS512T
@@ -3646,6 +3661,10 @@ void spi_nor_set_fixups(struct spi_nor *nor)
                        break;
                }
        }
+
+       if (CONFIG_IS_ENABLED(SPI_FLASH_BAR) &&
+           !strcmp(nor->info->name, "s25fl256l"))
+               nor->fixups = &s25fl256l_fixups;
 #endif
 
 #ifdef CONFIG_SPI_FLASH_S28HS512T

diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 08b25712e39cb15c65e5a245ca24ff3833d197e6..3e0935e1fbdc846fa3729563c1e5caef34fc57ba 100644 (file)
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -233,6 +233,7 @@ const struct flash_info spi_nor_ids[] = {
        { INFO("s25fl208k",  0x014014,      0,  64 * 1024,  16, SECT_4K | SPI_NOR_DUAL_READ) },
        { INFO("s25fl064l",  0x016017,      0,  64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
        { INFO("s25fl128l",  0x016018,      0,  64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+       { INFO("s25fl256l",  0x016019,      0,  64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
        { INFO6("s25hl512t",  0x342a1a, 0x0f0390, 256 * 1024, 256,
                SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES |
                USE_CLSR) },