kernel: backport GD25Q256 support from 4.15

Backport below changes for GigaDevice GD25Q256 support from v4.15:

  e27072851bf7 mtd: spi-nor: add a quad_enable callback in struct flash_info
  65153846b18c mtd: spi-nor: add support for GD25Q256

This chip is used on newer Quad-E4G boards.

Before:

[    2.366493] m25p80 spi0.0: unrecognized JEDEC id bytes: c8, 40, 19
[    2.372853] m25p80: probe of spi0.0 failed with error -2

After:

[    2.371722] m25p80 spi0.0: gd25q256 (32768 Kbytes)
[    2.376694] 5 fixed-partitions partitions found on MTD device spi0.0
[    2.383043] Creating 5 MTD partitions on "spi0.0":
[    2.387824] 0x000000000000-0x000000030000 : "u-boot"
[    2.394138] 0x000000030000-0x000000031000 : "u-boot-env"
[    2.400608] 0x000000031000-0x000000040000 : "config"
[    2.406830] 0x000000040000-0x000000050000 : "factory"
[    2.413169] 0x000000050000-0x000002000000 : "firmware"

Signed-off-by: Kuan-Yi Li <kyli@abysm.org>

13 files changed, 95 insertions, 13 deletions

diff --git a/target/linux/generic/backport-4.14/403-v4.15-0001-mtd-spi-nor-add-a-quad_enable-callback-in-struct-fla.patch b/target/linux/generic/backport-4.14/403-v4.15-0001-mtd-spi-nor-add-a-quad_enable-callback-in-struct-fla.patch
new file mode 100644
index 0000000000..6cc7b44c1f
--- /dev/null
+++ b/target/linux/generic/backport-4.14/403-v4.15-0001-mtd-spi-nor-add-a-quad_enable-callback-in-struct-fla.patch
@@ -0,0 +1,47 @@
+From e27072851bf7d706c592fc528549b52023b17a09 Mon Sep 17 00:00:00 2001
+From: Andy Yan <andy.yan@rock-chips.com>
+Date: Mon, 28 Aug 2017 09:58:29 +0800
+Subject: [PATCH 1/2] mtd: spi-nor: add a quad_enable callback in struct
+ flash_info
+
+Some manufacturers may use different bit to set QE on different
+memories.
+
+The GD25Q256 from GigaDevice is an example, which uses S6(bit 6
+of the Status Register-1) to set QE, which is different with
+other supported memories from GigaDevice that use S9(bit 1 of
+the Status Register-2). This makes it is impossible to select
+the quad enable method by distinguishing the MFR. This patch
+introduce a quad_enable function which can be set per memory
+in the flash_info list table.
+
+Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
+Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -89,6 +89,8 @@ struct flash_info {
+ #define NO_CHIP_ERASE		BIT(12) /* Chip does not support chip erase */
+ #define SPI_NOR_SKIP_SFDP	BIT(13)	/* Skip parsing of SFDP tables */
+ #define USE_CLSR		BIT(14)	/* use CLSR command */
++
++	int	(*quad_enable)(struct spi_nor *nor);
+ };
+ 
+ #define JEDEC_MFR(info)	((info)->id[0])
+@@ -2433,6 +2435,15 @@ static int spi_nor_init_params(struct sp
+ 			params->quad_enable = spansion_quad_enable;
+ 			break;
+ 		}
++
++		/*
++		 * Some manufacturer like GigaDevice may use different
++		 * bit to set QE on different memories, so the MFR can't
++		 * indicate the quad_enable method for this case, we need
++		 * set it in flash info list.
++		 */
++		if (info->quad_enable)
++			params->quad_enable = info->quad_enable;
+ 	}
+ 
+ 	/* Override the parameters with data read from SFDP tables. */
diff --git a/target/linux/generic/backport-4.14/403-v4.15-0002-mtd-spi-nor-add-support-for-GD25Q256.patch b/target/linux/generic/backport-4.14/403-v4.15-0002-mtd-spi-nor-add-support-for-GD25Q256.patch
new file mode 100644
index 0000000000..c19a82179b
--- /dev/null
+++ b/target/linux/generic/backport-4.14/403-v4.15-0002-mtd-spi-nor-add-support-for-GD25Q256.patch
@@ -0,0 +1,35 @@
+From 65153846b18c486ce3c90477c467d53915114e3f Mon Sep 17 00:00:00 2001
+From: Andy Yan <andy.yan@rock-chips.com>
+Date: Mon, 28 Aug 2017 10:00:46 +0800
+Subject: [PATCH 2/2] mtd: spi-nor: add support for GD25Q256
+
+Add support for GD25Q256, a 32MiB SPI Nor flash
+from GigaDevice.
+
+Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
+Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -872,6 +872,8 @@ static int spi_nor_is_locked(struct mtd_
+ 	return ret;
+ }
+ 
++static int macronix_quad_enable(struct spi_nor *nor);
++
+ /* Used when the "_ext_id" is two bytes at most */
+ #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags)	\
+ 		.id = {							\
+@@ -999,6 +1001,12 @@ static const struct flash_info spi_nor_i
+ 			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
+ 			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
+ 	},
++	{
++		"gd25q256", INFO(0xc84019, 0, 64 * 1024, 512,
++			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
++			SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
++			.quad_enable = macronix_quad_enable,
++	},
+ 
+ 	/* Intel/Numonyx -- xxxs33b */
+ 	{ "160s33b",  INFO(0x898911, 0, 64 * 1024,  32, 0) },
diff --git a/target/linux/generic/pending-4.14/450-mtd-spi-nor-allow-NOR-driver-to-write-fewer-bytes-th.patch b/target/linux/generic/pending-4.14/450-mtd-spi-nor-allow-NOR-driver-to-write-fewer-bytes-th.patch
index 571c9b885f..cfd6c280ec 100644
--- a/target/linux/generic/pending-4.14/450-mtd-spi-nor-allow-NOR-driver-to-write-fewer-bytes-th.patch
+++ b/target/linux/generic/pending-4.14/450-mtd-spi-nor-allow-NOR-driver-to-write-fewer-bytes-th.patch
@@ -11,7 +11,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1377,7 +1377,7 @@ static int spi_nor_write(struct mtd_info
+@@ -1387,7 +1387,7 @@ static int spi_nor_write(struct mtd_info
  
  		write_enable(nor);
  		ret = nor->write(nor, addr, page_remain, buf + i);
@@ -20,7 +20,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  			goto write_err;
  		written = ret;
  
-@@ -1386,13 +1386,6 @@ static int spi_nor_write(struct mtd_info
+@@ -1396,13 +1396,6 @@ static int spi_nor_write(struct mtd_info
  			goto write_err;
  		*retlen += written;
  		i += written;
diff --git a/target/linux/generic/pending-4.14/465-m25p80-mx-disable-software-protection.patch b/target/linux/generic/pending-4.14/465-m25p80-mx-disable-software-protection.patch
index b41710276f..36305b20b1 100644
--- a/target/linux/generic/pending-4.14/465-m25p80-mx-disable-software-protection.patch
+++ b/target/linux/generic/pending-4.14/465-m25p80-mx-disable-software-protection.patch
@@ -8,7 +8,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -2714,6 +2714,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -2733,6 +2733,7 @@ int spi_nor_scan(struct spi_nor *nor, co
  
  	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
  	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
diff --git a/target/linux/generic/pending-4.14/466-Revert-mtd-spi-nor-fix-Spansion-regressions-aliased-.patch b/target/linux/generic/pending-4.14/466-Revert-mtd-spi-nor-fix-Spansion-regressions-aliased-.patch
index 55d9709761..f599cead97 100644
--- a/target/linux/generic/pending-4.14/466-Revert-mtd-spi-nor-fix-Spansion-regressions-aliased-.patch
+++ b/target/linux/generic/pending-4.14/466-Revert-mtd-spi-nor-fix-Spansion-regressions-aliased-.patch
@@ -17,7 +17,7 @@ Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -2716,6 +2716,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -2735,6 +2735,7 @@ int spi_nor_scan(struct spi_nor *nor, co
  	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
  	    JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
  	    JEDEC_MFR(info) == SNOR_MFR_SST ||
@@ -25,7 +25,7 @@ Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
  	    info->flags & SPI_NOR_HAS_LOCK) {
  		write_enable(nor);
  		write_sr(nor, 0);
-@@ -2734,7 +2735,8 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -2753,7 +2754,8 @@ int spi_nor_scan(struct spi_nor *nor, co
  
  	/* NOR protection support for STmicro/Micron chips and similar */
  	if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
diff --git a/target/linux/generic/pending-4.14/470-mtd-spi-nor-support-limiting-4K-sectors-support-base.patch b/target/linux/generic/pending-4.14/470-mtd-spi-nor-support-limiting-4K-sectors-support-base.patch
index 0f4ea32688..5790848cac 100644
--- a/target/linux/generic/pending-4.14/470-mtd-spi-nor-support-limiting-4K-sectors-support-base.patch
+++ b/target/linux/generic/pending-4.14/470-mtd-spi-nor-support-limiting-4K-sectors-support-base.patch
@@ -39,7 +39,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	depends on ARCH_AT91 || (ARM && COMPILE_TEST && !ARCH_EBSA110)
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -2561,10 +2561,12 @@ static int spi_nor_select_erase(struct s
+@@ -2580,10 +2580,12 @@ static int spi_nor_select_erase(struct s
  
  #ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
  	/* prefer "small sector" erase if possible */
diff --git a/target/linux/generic/pending-4.14/475-mtd-spi-nor-Add-Winbond-w25q128jv-support.patch b/target/linux/generic/pending-4.14/475-mtd-spi-nor-Add-Winbond-w25q128jv-support.patch
index f751bfd3b2..e78f3576ac 100644
--- a/target/linux/generic/pending-4.14/475-mtd-spi-nor-Add-Winbond-w25q128jv-support.patch
+++ b/target/linux/generic/pending-4.14/475-mtd-spi-nor-Add-Winbond-w25q128jv-support.patch
@@ -20,7 +20,7 @@ Changes in v2:
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1165,6 +1165,11 @@ static const struct flash_info spi_nor_i
+@@ -1175,6 +1175,11 @@ static const struct flash_info spi_nor_i
  			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
  			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
  	},
diff --git a/target/linux/generic/pending-4.14/476-mtd-spi-nor-add-eon-en25q128.patch b/target/linux/generic/pending-4.14/476-mtd-spi-nor-add-eon-en25q128.patch
index ac1fda5159..f50daddd6b 100644
--- a/target/linux/generic/pending-4.14/476-mtd-spi-nor-add-eon-en25q128.patch
+++ b/target/linux/generic/pending-4.14/476-mtd-spi-nor-add-eon-en25q128.patch
@@ -8,7 +8,7 @@ Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -954,6 +954,7 @@ static const struct flash_info spi_nor_i
+@@ -958,6 +958,7 @@ static const struct flash_info spi_nor_i
  	{ "en25q32b",   INFO(0x1c3016, 0, 64 * 1024,   64, 0) },
  	{ "en25p64",    INFO(0x1c2017, 0, 64 * 1024,  128, 0) },
  	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
diff --git a/target/linux/generic/pending-4.14/477-mtd-add-spi-nor-add-mx25u3235f.patch b/target/linux/generic/pending-4.14/477-mtd-add-spi-nor-add-mx25u3235f.patch
index 2d94959c5c..6c7a5d9343 100644
--- a/target/linux/generic/pending-4.14/477-mtd-add-spi-nor-add-mx25u3235f.patch
+++ b/target/linux/generic/pending-4.14/477-mtd-add-spi-nor-add-mx25u3235f.patch
@@ -8,7 +8,7 @@ Signed-off-by: André Valentin <avalentin@marcant.net>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1022,6 +1022,7 @@ static const struct flash_info spi_nor_i
+@@ -1032,6 +1032,7 @@ static const struct flash_info spi_nor_i
  	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, SECT_4K) },
  	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64, SECT_4K) },
  	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) },
diff --git a/target/linux/generic/pending-4.14/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch b/target/linux/generic/pending-4.14/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
index 4ecf53621d..7d3ca56c1e 100644
--- a/target/linux/generic/pending-4.14/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
+++ b/target/linux/generic/pending-4.14/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
@@ -17,7 +17,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1192,6 +1192,10 @@ static const struct flash_info spi_nor_i
+@@ -1202,6 +1202,10 @@ static const struct flash_info spi_nor_i
  	{ "3S400AN", S3AN_INFO(0x1f2400, 256, 264) },
  	{ "3S700AN", S3AN_INFO(0x1f2500, 512, 264) },
  	{ "3S1400AN", S3AN_INFO(0x1f2600, 512, 528) },
diff --git a/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh32.patch b/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh32.patch
index b8d5101514..c88bd6a422 100644
--- a/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh32.patch
+++ b/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh32.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -955,6 +955,7 @@ static const struct flash_info spi_nor_i
+@@ -959,6 +959,7 @@ static const struct flash_info spi_nor_i
  	{ "en25p64",    INFO(0x1c2017, 0, 64 * 1024,  128, 0) },
  	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
  	{ "en25q128",   INFO(0x1c3018, 0, 64 * 1024,  256, SECT_4K) },
diff --git a/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh64.patch b/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh64.patch
index c290a784d0..8a56d5a1aa 100644
--- a/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh64.patch
+++ b/target/linux/generic/pending-4.14/479-mtd-spi-nor-add-eon-en25qh64.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -956,6 +956,7 @@ static const struct flash_info spi_nor_i
+@@ -960,6 +960,7 @@ static const struct flash_info spi_nor_i
  	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
  	{ "en25q128",   INFO(0x1c3018, 0, 64 * 1024,  256, SECT_4K) },
  	{ "en25qh32",   INFO(0x1c7016, 0, 64 * 1024,   64, 0) },
diff --git a/target/linux/generic/pending-4.14/481-mtd-spi-nor-add-support-for-Gigadevice-GD25D05.patch b/target/linux/generic/pending-4.14/481-mtd-spi-nor-add-support-for-Gigadevice-GD25D05.patch
index 4e632b05a0..e347650ae5 100644
--- a/target/linux/generic/pending-4.14/481-mtd-spi-nor-add-support-for-Gigadevice-GD25D05.patch
+++ b/target/linux/generic/pending-4.14/481-mtd-spi-nor-add-support-for-Gigadevice-GD25D05.patch
@@ -10,7 +10,7 @@ Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -976,6 +976,11 @@ static const struct flash_info spi_nor_i
+@@ -980,6 +980,11 @@ static const struct flash_info spi_nor_i
  
  	/* GigaDevice */
  	{