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bcm53xx: backport spi-nor patches from 3.18-rc1

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43030
This commit is contained in:
Rafał Miłecki 2014-10-22 14:16:18 +00:00
parent 18ae41edf0
commit 2466b04a5a
5 changed files with 107 additions and 136 deletions
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106
target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch Normal file
View file

@ -0,0 +1,106 @@
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -611,6 +611,7 @@ const struct spi_device_id spi_nor_ids[]
{ "m25px32-s0", INFO(0x207316, 0, 64 * 1024, 64, SECT_4K) },
{ "m25px32-s1", INFO(0x206316, 0, 64 * 1024, 64, SECT_4K) },
{ "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) },
+ { "m25px80", INFO(0x207114, 0, 64 * 1024, 16, 0) },
/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
{ "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) },
@@ -623,7 +624,6 @@ const struct spi_device_id spi_nor_ids[]
{ "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
- { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
{ "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) },
@@ -671,11 +671,6 @@ static const struct spi_device_id *spi_n
return ERR_PTR(-ENODEV);
}
-static const struct spi_device_id *jedec_probe(struct spi_nor *nor)
-{
- return nor->read_id(nor);
-}
-
static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
@@ -920,7 +915,6 @@ int spi_nor_scan(struct spi_nor *nor, co
enum read_mode mode)
{
struct flash_info *info;
- struct flash_platform_data *data;
struct device *dev = nor->dev;
struct mtd_info *mtd = nor->mtd;
struct device_node *np = dev->of_node;
@@ -931,34 +925,12 @@ int spi_nor_scan(struct spi_nor *nor, co
if (ret)
return ret;
- /* Platform data helps sort out which chip type we have, as
- * well as how this board partitions it. If we don't have
- * a chip ID, try the JEDEC id commands; they'll work for most
- * newer chips, even if we don't recognize the particular chip.
- */
- data = dev_get_platdata(dev);
- if (data && data->type) {
- const struct spi_device_id *plat_id;
-
- for (i = 0; i < ARRAY_SIZE(spi_nor_ids) - 1; i++) {
- plat_id = &spi_nor_ids[i];
- if (strcmp(data->type, plat_id->name))
- continue;
- break;
- }
-
- if (i < ARRAY_SIZE(spi_nor_ids) - 1)
- id = plat_id;
- else
- dev_warn(dev, "unrecognized id %s\n", data->type);
- }
-
info = (void *)id->driver_data;
if (info->jedec_id) {
const struct spi_device_id *jid;
- jid = jedec_probe(nor);
+ jid = nor->read_id(nor);
if (IS_ERR(jid)) {
return PTR_ERR(jid);
} else if (jid != id) {
@@ -990,11 +962,8 @@ int spi_nor_scan(struct spi_nor *nor, co
write_sr(nor, 0);
}
- if (data && data->name)
- mtd->name = data->name;
- else
+ if (!mtd->name)
mtd->name = dev_name(dev);
-
mtd->type = MTD_NORFLASH;
mtd->writesize = 1;
mtd->flags = MTD_CAP_NORFLASH;
@@ -1018,6 +987,7 @@ int spi_nor_scan(struct spi_nor *nor, co
nor->wait_till_ready == spi_nor_wait_till_ready)
nor->wait_till_ready = spi_nor_wait_till_fsr_ready;
+#ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
/* prefer "small sector" erase if possible */
if (info->flags & SECT_4K) {
nor->erase_opcode = SPINOR_OP_BE_4K;
@@ -1025,7 +995,9 @@ int spi_nor_scan(struct spi_nor *nor, co
} else if (info->flags & SECT_4K_PMC) {
nor->erase_opcode = SPINOR_OP_BE_4K_PMC;
mtd->erasesize = 4096;
- } else {
+ } else
+#endif
+ {
nor->erase_opcode = SPINOR_OP_SE;
mtd->erasesize = info->sector_size;
}

39
target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-queued-for-3.18.patch
View file

@ -1,39 +0,0 @@
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -611,6 +611,7 @@ const struct spi_device_id spi_nor_ids[]
{ "m25px32-s0", INFO(0x207316, 0, 64 * 1024, 64, SECT_4K) },
{ "m25px32-s1", INFO(0x206316, 0, 64 * 1024, 64, SECT_4K) },
{ "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) },
+ { "m25px80", INFO(0x207114, 0, 64 * 1024, 16, 0) },
/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
{ "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) },
@@ -623,7 +624,6 @@ const struct spi_device_id spi_nor_ids[]
{ "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
- { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
{ "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) },
@@ -671,11 +671,6 @@ static const struct spi_device_id *spi_n
return ERR_PTR(-ENODEV);
}
-static const struct spi_device_id *jedec_probe(struct spi_nor *nor)
-{
- return nor->read_id(nor);
-}
-
static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
@@ -958,7 +953,7 @@ int spi_nor_scan(struct spi_nor *nor, co
if (info->jedec_id) {
const struct spi_device_id *jid;
- jid = jedec_probe(nor);
+ jid = nor->read_id(nor);
if (IS_ERR(jid)) {
return PTR_ERR(jid);
} else if (jid != id) {

52
target/linux/bcm53xx/patches-3.14/400-mtd-move-support-for-struct-flash_platform_data-into.patch
View file

@ -1,52 +0,0 @@
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -915,7 +915,6 @@ int spi_nor_scan(struct spi_nor *nor, co
enum read_mode mode)
{
struct flash_info *info;
- struct flash_platform_data *data;
struct device *dev = nor->dev;
struct mtd_info *mtd = nor->mtd;
struct device_node *np = dev->of_node;
@@ -926,28 +925,6 @@ int spi_nor_scan(struct spi_nor *nor, co
if (ret)
return ret;
- /* Platform data helps sort out which chip type we have, as
- * well as how this board partitions it. If we don't have
- * a chip ID, try the JEDEC id commands; they'll work for most
- * newer chips, even if we don't recognize the particular chip.
- */
- data = dev_get_platdata(dev);
- if (data && data->type) {
- const struct spi_device_id *plat_id;
-
- for (i = 0; i < ARRAY_SIZE(spi_nor_ids) - 1; i++) {
- plat_id = &spi_nor_ids[i];
- if (strcmp(data->type, plat_id->name))
- continue;
- break;
- }
-
- if (i < ARRAY_SIZE(spi_nor_ids) - 1)
- id = plat_id;
- else
- dev_warn(dev, "unrecognized id %s\n", data->type);
- }
-
info = (void *)id->driver_data;
if (info->jedec_id) {
@@ -985,11 +962,8 @@ int spi_nor_scan(struct spi_nor *nor, co
write_sr(nor, 0);
}
- if (data && data->name)
- mtd->name = data->name;
- else
+ if (!mtd->name)
mtd->name = dev_name(dev);
-
mtd->type = MTD_NORFLASH;
mtd->writesize = 1;
mtd->flags = MTD_CAP_NORFLASH;

44
target/linux/bcm53xx/patches-3.14/401-mtd-spi-nor-add-Kconfig-option-to-disable-4K-sectors.patch
View file

@ -1,44 +0,0 @@
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -7,6 +7,20 @@ menuconfig MTD_SPI_NOR
if MTD_SPI_NOR
+config MTD_SPI_NOR_USE_4K_SECTORS
+ bool "Use small 4096 B erase sectors"
+ default y
+ help
+ Many flash memories support erasing small (4096 B) sectors. Depending
+ on the usage this feature may provide performance gain in comparison
+ to erasing whole blocks (32/64 KiB).
+ Changing small part of flash content is usually faster with small
+ sectors. On the other hand erasing should be faster when using 64 KiB
+ block instead of 16 × 4 KiB sectors.
+
+ Please note that some tools/drivers/filesystems may not work with
+ 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
+
config SPI_FSL_QUADSPI
tristate "Freescale Quad SPI controller"
depends on ARCH_MXC
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -987,6 +987,7 @@ int spi_nor_scan(struct spi_nor *nor, co
nor->wait_till_ready == spi_nor_wait_till_ready)
nor->wait_till_ready = spi_nor_wait_till_fsr_ready;
+#ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
/* prefer "small sector" erase if possible */
if (info->flags & SECT_4K) {
nor->erase_opcode = SPINOR_OP_BE_4K;
@@ -994,7 +995,9 @@ int spi_nor_scan(struct spi_nor *nor, co
} else if (info->flags & SECT_4K_PMC) {
nor->erase_opcode = SPINOR_OP_BE_4K_PMC;
mtd->erasesize = 4096;
- } else {
+ } else
+#endif
+ {
nor->erase_opcode = SPINOR_OP_SE;
mtd->erasesize = info->sector_size;
}

2
target/linux/bcm53xx/patches-3.14/404-mtd-bcm53xxspiflash-new-driver-for-SPI-flahes-on-Bro.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -28,4 +28,10 @@ config SPI_FSL_QUADSPI
@@ -14,4 +14,10 @@ config SPI_FSL_QUADSPI
This enables support for the Quad SPI controller in master mode.
We only connect the NOR to this controller now.