[PATCH 2/2] mtd: spi-nor-core: Add fixups for Spansion S25FL256L

[tkuw584924 at gmail.com]

From: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>

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.

Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>
---
 drivers/mtd/spi/spi-nor-core.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index d5d905fa5a..4940b35682 100644
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -3222,6 +3222,23 @@ static struct spi_nor_fixups s25hx_t_fixups = {
 	.post_bfpt = s25hx_t_post_bfpt_fixup,
 	.post_sfdp = s25hx_t_post_sfdp_fixup,
 };
+
+#ifdef CONFIG_SPI_FLASH_BAR
+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
 #endif
 
 #ifdef CONFIG_SPI_FLASH_S28HS512T
@@ -3644,6 +3661,10 @@ void spi_nor_set_fixups(struct spi_nor *nor)
 			break;
 		}
 	}
+#ifdef CONFIG_SPI_FLASH_BAR
+	if (!strcmp(nor->info->name, "s25fl256l"))
+		nor->fixups = &s25fl256l_fixups;
+#endif
 #endif
 
 #ifdef CONFIG_SPI_FLASH_S28HS512T
-- 
2.25.1