[PATCH v4] mtd: spi-nor: Rename n25q512a to mt25qu512a(n25q512a)

[Ashish Kumar <Ashish.Kumar@nxp.com>]

mt25qu512a is rebranded after its spinoff from STM, so it is
different only in term of operating frequency, JEDEC id
is same as that of n25q512a.
SPI_NOR_4B_OPCODES is appended to flash property.
This flash is tested for Single I/O and QUAD I/O mode on LS1046FRWY.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
---
v4:
-Reword commit message as per review comments from
tudor.
- split into seperate patch 
v3:
-Reword commits msg
-rebase to top of mtd-linux spi-nor/next
v2:
Incorporate review comments from Vignesh

 drivers/mtd/spi-nor/spi-nor.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 73172d7f512b..b585f3fee4f0 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1876,7 +1876,18 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024,  256, SECT_4K | SPI_NOR_QUAD_READ) },
 	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "n25q256ax1",  INFO(0x20bb19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ) },
-	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
+
+	/* Micron */
+	/* n25q512a is rebraned as mt25qu512a after spin-off from ST,
+	 * JEDEC id remains same.
+	 * Operational frequency and Read Performance has increased
+	 */
+	{
+		"mt25qu512a(n25q512a)", INFO(0x20bb20, 0, 64 * 1024, 1024,
+			SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
+			SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES)
+	},
+
 	{ "n25q512ax3",  INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
 	{ "n25q00",      INFO(0x20ba21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
 	{ "n25q00a",     INFO(0x20bb21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ | NO_CHIP_ERASE) },
-- 
2.17.1