openwrtv3/target/linux/layerscape/patches-4.4/1109-drivers-mtd-spi-nor-Enable-QSPI-Flash-in-Kernel.patch

From 70516f60de441829e7813c0b26567c8bda39c011 Mon Sep 17 00:00:00 2001
From: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
Date: Sun, 24 Apr 2016 23:20:26 +0530
Subject: [PATCH 109/113] drivers: mtd: spi-nor: Enable QSPI Flash in Kernel

Enable read from QSPI flash, Write onto QSPI Flash and
erase QSPI Flash in Fast mode in Kernel.

Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
---
 drivers/mtd/spi-nor/spi-nor.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -798,6 +798,7 @@ static const struct flash_info spi_nor_i
 	{ "s25sl032p",  INFO(0x010215, 0x4d00,  64 * 1024,  64, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25sl064p",  INFO(0x010216, 0x4d00,  64 * 1024, 128, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fs256s1", INFO6(0x010219, 0x4d0181, 64 * 1024, 512, 0)},
+	{ "s25fs512s",  INFO6(0x010220, 0x4d0081, 128 * 1024, 512, 0)},
 	{ "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, 0) },
 	{ "s25fl256s1", INFO(0x010219, 0x4d01,  64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "s25fl512s",  INFO(0x010220, 0x4d00, 256 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
@@ -964,9 +965,11 @@ static int spansion_s25fs_disable_4kb_er
 	ret = nor->read_reg(nor, SPINOR_OP_SPANSION_RDAR, &cr3v, 1);
 	if (ret)
 		return ret;
+/*
 	if (!(cr3v & CR3V_4KB_ERASE_UNABLE))
 		return -EPERM;
 
+*/
 	return 0;
 }