mtd: spi-nor: Add Dosilicon DS25M/Q series support

Add support for dosilicon ds25m4cb, ds25m4dn, ds25q4cb, ds25q4dn

Datasheets:
ds25m4cb:
https://www.dosilicon.com/resources/SPI%20NOR/DS25M4CB-XXXXX_Rev04.pdf
ds25m4dn:
https://www.dosilicon.com/resources/SPI%20NOR/DS25M4DN-XXXXX_Rev03.pdf
ds25q4cb:
https://www.dosilicon.com/resources/SPI%20NOR/DS25Q4CB-XXXXX_Rev03.pdf
ds25q4dn:
https://www.dosilicon.com/resources/SPI%20NOR/DS25Q4DN-XXXXX_Rev01.pdf

Signed-off-by: Ssunk <ssunkkan@gmail.com>
[trini: Adjust spacing]
Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
index 56f6fb70acdf33f052e96ce7fb69a9b90cb77f01..6399512e49f5d0d51831d576e9d2f58618c8d9b8 100644 (file)
--- a/drivers/mtd/spi/Kconfig
+++ b/drivers/mtd/spi/Kconfig
@@ -157,6 +157,11 @@ config SPI_FLASH_ATMEL
        help
          Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
 
+config SPI_FLASH_DOSILICON
+       bool "Dosilicon SPI flash support"
+       help
+         Add support for various Dosilicon SPI flash chips (DS25xxx)
+
 config SPI_FLASH_EON
        bool "EON SPI flash support"
        help

diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index f8bbb9bf0913d31232b0f8b3da9aef32e9a31f16..43dc628f74a6621f7949d62b96d05696dff6fde0 100644 (file)
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -77,6 +77,17 @@ const struct flash_info spi_nor_ids[] = {
        { INFO("at25sl321",     0x1f4216, 0, 64 * 1024,  64, SECT_4K) },
        { INFO("at26df081a",    0x1f4501, 0, 64 * 1024,  16, SECT_4K) },
 #endif
+#ifdef CONFIG_SPI_FLASH_DOSILICON
+       /* Dosilicon Co., Ltd */
+       { INFO("ds25m4cb", 0xe5401a, 0, 64 * 1024, 1024,
+                   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+       { INFO("ds25m4dn", 0xe5401b, 0, 64 * 1024, 2048,
+                   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+       { INFO("ds25q4cb", 0xe5301a, 0, 64 * 1024, 1024,
+                   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+       { INFO("ds25q4dn", 0xe5301b, 0, 64 * 1024, 2048,
+                   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+#endif
 #ifdef CONFIG_SPI_FLASH_EON            /* EON */
        /* EON -- en25xxx */
        { INFO("en25q80b",   0x1c3014, 0, 64 * 1024,   16, SECT_4K) },