[PATCH v2] mtd: spi-nor: micron-st: Add support for mt25qu01g

[Fabio Estevam]

From: Fabio Estevam <festevam at denx.de>

Add support for the MT25QU01G 128MB Micron Serial NOR Flash Memory
model.

Datasheet:
https://www.micron.com/-/media/client/global/documents/products/data-sheet/nor-flash/serial-nor/mt25q/die-rev-b/mt25q_qlkt_u_01g_bbb_0.pdf

Tested on a i.MX8MP based board:

 # dmesg | grep spi-nor
spi-nor spi0.0: mt25qu01g (131072 Kbytes)

 # cat /proc/mtd
dev:    size   erasesize  name
mtd0: 08000000 00001000 "30bb0000.spi"

~# cat /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/jedec_id
20bb21104400

~# cat /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/manufacturer
st

~# cat /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/partname
mt25qu01g

~# xxd -p  /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
53464450060101ff00060110300000ff84000102800000ffffffffffffff
ffffffffffffffffffffffffffffffffffffe520fbffffffff3f29eb276b
273b27bbffffffffffff27bbffff29eb0c2010d80f520000244a99008b8e
03e1ac0127387a757a75fbbdd55c4a0f82ff81bd3d36ffffffffffffffff
ffffffffffffffffffe7ffff21dcffff

~# md5sum  /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
9d28d1b11de8b15ba9152644219d9a78 /sys/devices/platform/soc at 0/30800000.bus/30bb0000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp

Signed-off-by: Fabio Estevam <festevam at denx.de>
---
Changes since v1:
- Removed .size field. (Michael)
- Removed .no_sfdp_flags field (Michael)
- Shared sfdp dump. (Michael)
- Still kept NO_CHIP_ERASE, otherwise flash_erase returns immediately
and don't erase the flash.

 drivers/mtd/spi-nor/micron-st.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 8920547c12bf..8d4d3f6f9390 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -429,6 +429,11 @@ static const struct flash_info st_nor_parts[] = {
 			 SPI_NOR_BP3_SR_BIT6,
 		.no_sfdp_flags = SECT_4K | SPI_NOR_QUAD_READ,
 		.mfr_flags = USE_FSR,
+	}, {
+		.id = SNOR_ID(0x20, 0xbb, 0x21, 0x10, 0x44, 0x00),
+		.name = "mt25qu01g",
+		.flags = NO_CHIP_ERASE,
+		.mfr_flags = USE_FSR,
 	}, {
 		.id = SNOR_ID(0x20, 0xbb, 0x21),
 		.name = "n25q00a",
-- 
2.34.1