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generic: mtd: backport SPI_NOR_HAS_LOCK

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This flag was added to 4.9 with upstream commit
76a4707de5e18dc32d9cb4e990686140c5664a15.

Signed-off-by: Victor Shyba <victor1984@riseup.net>
[refresh and adjust platform patches, fix commit message]
Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Victor Shyba
2016-12-20 05:19:08 -03:00
committed by Mathias Kresin
parent 799d0dddf6
commit d6c831e0e5
32 changed files with 178 additions and 183 deletions
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62
target/linux/mediatek/patches-4.4/0072-mtd-backport-v4.7-0day-patches-from-Boris.patch
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@@ -3942,7 +3942,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
struct flash_info {
char *name;
@@ -60,14 +61,20 @@ struct flash_info {
@@ -60,15 +61,20 @@ struct flash_info {
u16 addr_width;
u16 flags;
@@ -3954,6 +3954,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
-#define SPI_NOR_DUAL_READ 0x20 /* Flash supports Dual Read */
-#define SPI_NOR_QUAD_READ 0x40 /* Flash supports Quad Read */
-#define USE_FSR 0x80 /* use flag status register */
-#define SPI_NOR_HAS_LOCK 0x100 /* Flash supports lock/unlock via SR */
+#define SECT_4K BIT(0) /* SPINOR_OP_BE_4K works uniformly */
+#define SPI_NOR_NO_ERASE BIT(1) /* No erase command needed */
+#define SST_WRITE BIT(2) /* use SST byte programming */
@@ -3971,7 +3972,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
};
#define JEDEC_MFR(info) ((info)->id[0])
@@ -313,6 +320,29 @@ static void spi_nor_unlock_and_unprep(st
@@ -314,6 +320,29 @@ static void spi_nor_unlock_and_unprep(st
}
/*
@@ -4001,7 +4002,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
* Erase an address range on the nor chip. The address range may extend
* one or more erase sectors. Return an error is there is a problem erasing.
*/
@@ -371,10 +401,9 @@ static int spi_nor_erase(struct mtd_info
@@ -372,10 +401,9 @@ static int spi_nor_erase(struct mtd_info
while (len) {
write_enable(nor);
@@ -4014,7 +4015,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
addr += mtd->erasesize;
len -= mtd->erasesize;
@@ -387,17 +416,13 @@ static int spi_nor_erase(struct mtd_info
@@ -388,17 +416,13 @@ static int spi_nor_erase(struct mtd_info
write_disable(nor);
@@ -4034,7 +4035,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
}
static void stm_get_locked_range(struct spi_nor *nor, u8 sr, loff_t *ofs,
@@ -415,32 +440,58 @@ static void stm_get_locked_range(struct
@@ -416,32 +440,58 @@ static void stm_get_locked_range(struct
} else {
pow = ((sr & mask) ^ mask) >> shift;
*len = mtd->size >> pow;
@@ -4100,7 +4101,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
* Sample table portion for 8MB flash (Winbond w25q64fw):
*
* SEC | TB | BP2 | BP1 | BP0 | Prot Length | Protected Portion
@@ -453,26 +504,55 @@ static int stm_is_locked_sr(struct spi_n
@@ -454,26 +504,55 @@ static int stm_is_locked_sr(struct spi_n
* 0 | 0 | 1 | 0 | 1 | 2 MB | Upper 1/4
* 0 | 0 | 1 | 1 | 0 | 4 MB | Upper 1/2
* X | X | 1 | 1 | 1 | 8 MB | ALL
@@ -4165,7 +4166,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
/*
* Need smallest pow such that:
@@ -483,7 +563,7 @@ static int stm_lock(struct spi_nor *nor,
@@ -484,7 +563,7 @@ static int stm_lock(struct spi_nor *nor,
*
* pow = ceil(log2(size / len)) = log2(size) - floor(log2(len))
*/
@@ -4174,7 +4175,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
val = mask - (pow << shift);
if (val & ~mask)
return -EINVAL;
@@ -491,14 +571,27 @@ static int stm_lock(struct spi_nor *nor,
@@ -492,14 +571,27 @@ static int stm_lock(struct spi_nor *nor,
if (!(val & mask))
return -EINVAL;
@@ -4205,7 +4206,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
}
/*
@@ -509,17 +602,43 @@ static int stm_lock(struct spi_nor *nor,
@@ -510,17 +602,43 @@ static int stm_lock(struct spi_nor *nor,
static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)
{
struct mtd_info *mtd = &nor->mtd;
@@ -4253,7 +4254,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
/*
* Need largest pow such that:
*
@@ -529,8 +648,8 @@ static int stm_unlock(struct spi_nor *no
@@ -530,8 +648,8 @@ static int stm_unlock(struct spi_nor *no
*
* pow = floor(log2(size / len)) = log2(size) - ceil(log2(len))
*/
@@ -4264,7 +4265,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
val = 0; /* fully unlocked */
} else {
val = mask - (pow << shift);
@@ -539,14 +658,28 @@ static int stm_unlock(struct spi_nor *no
@@ -540,14 +658,28 @@ static int stm_unlock(struct spi_nor *no
return -EINVAL;
}
@@ -4296,7 +4297,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
}
/*
@@ -736,8 +869,8 @@ static const struct flash_info spi_nor_i
@@ -737,8 +869,8 @@ static const struct flash_info spi_nor_i
{ "n25q032a", INFO(0x20bb16, 0, 64 * 1024, 64, SPI_NOR_QUAD_READ) },
{ "n25q064", INFO(0x20ba17, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_QUAD_READ) },
{ "n25q064a", INFO(0x20bb17, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_QUAD_READ) },
@@ -4307,7 +4308,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
{ "n25q256a", INFO(0x20ba19, 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) },
{ "n25q512ax3", INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
@@ -771,6 +904,7 @@ static const struct flash_info spi_nor_i
@@ -772,6 +904,7 @@ static const struct flash_info spi_nor_i
{ "s25fl008k", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ "s25fl016k", INFO(0xef4015, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ "s25fl064k", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
@@ -4315,7 +4316,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
{ "s25fl132k", INFO(0x014016, 0, 64 * 1024, 64, SECT_4K) },
{ "s25fl164k", INFO(0x014017, 0, 64 * 1024, 128, SECT_4K) },
{ "s25fl204k", INFO(0x014013, 0, 64 * 1024, 8, SECT_4K | SPI_NOR_DUAL_READ) },
@@ -834,11 +968,23 @@ static const struct flash_info spi_nor_i
@@ -835,11 +968,23 @@ static const struct flash_info spi_nor_i
{ "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) },
{ "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) },
@@ -4342,7 +4343,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
{ "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) },
{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) },
{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
@@ -861,7 +1007,7 @@ static const struct flash_info *spi_nor_
@@ -862,7 +1007,7 @@ static const struct flash_info *spi_nor_
tmp = nor->read_reg(nor, SPINOR_OP_RDID, id, SPI_NOR_MAX_ID_LEN);
if (tmp < 0) {
@@ -4351,7 +4352,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
return ERR_PTR(tmp);
}
@@ -872,7 +1018,7 @@ static const struct flash_info *spi_nor_
@@ -873,7 +1018,7 @@ static const struct flash_info *spi_nor_
return &spi_nor_ids[tmp];
}
}
@@ -4360,7 +4361,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
id[0], id[1], id[2]);
return ERR_PTR(-ENODEV);
}
@@ -1018,6 +1164,8 @@ static int macronix_quad_enable(struct s
@@ -1019,6 +1164,8 @@ static int macronix_quad_enable(struct s
int ret, val;
val = read_sr(nor);
@@ -4369,7 +4370,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
write_enable(nor);
write_sr(nor, val | SR_QUAD_EN_MX);
@@ -1099,7 +1247,7 @@ static int set_quad_mode(struct spi_nor
@@ -1100,7 +1247,7 @@ static int set_quad_mode(struct spi_nor
static int spi_nor_check(struct spi_nor *nor)
{
if (!nor->dev || !nor->read || !nor->write ||
@@ -4378,7 +4379,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
pr_err("spi-nor: please fill all the necessary fields!\n");
return -EINVAL;
}
@@ -1112,7 +1260,7 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -1113,7 +1260,7 @@ int spi_nor_scan(struct spi_nor *nor, co
const struct flash_info *info = NULL;
struct device *dev = nor->dev;
struct mtd_info *mtd = &nor->mtd;
@@ -4387,30 +4388,15 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
int ret;
int i;
@@ -1162,9 +1310,11 @@ int spi_nor_scan(struct spi_nor *nor, co
if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
JEDEC_MFR(info) == SNOR_MFR_INTEL ||
JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
- JEDEC_MFR(info) == SNOR_MFR_SST) {
+ JEDEC_MFR(info) == SNOR_MFR_SST ||
+ info->flags & SPI_NOR_HAS_LOCK) {
@@ -1167,6 +1314,7 @@ int spi_nor_scan(struct spi_nor *nor, co
info->flags & SPI_NOR_HAS_LOCK) {
write_enable(nor);
write_sr(nor, 0);
+ spi_nor_wait_till_ready(nor);
}
if (!mtd->name)
@@ -1178,7 +1328,8 @@ int spi_nor_scan(struct spi_nor *nor, co
mtd->_read = spi_nor_read;
/* NOR protection support for STmicro/Micron chips and similar */
- if (JEDEC_MFR(info) == SNOR_MFR_MICRON) {
+ if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
+ info->flags & SPI_NOR_HAS_LOCK) {
nor->flash_lock = stm_lock;
nor->flash_unlock = stm_unlock;
nor->flash_is_locked = stm_is_locked;
@@ -1198,6 +1349,8 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -1201,6 +1349,8 @@ int spi_nor_scan(struct spi_nor *nor, co
if (info->flags & USE_FSR)
nor->flags |= SNOR_F_USE_FSR;
@@ -4419,7 +4405,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
#ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
/* prefer "small sector" erase if possible */
@@ -1300,6 +1453,12 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -1303,6 +1453,12 @@ int spi_nor_scan(struct spi_nor *nor, co
nor->addr_width = 3;
}