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brcm63xx: backport mtd of node changes from upstream

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Should fix parser data containing uninitialized values for of probed
physmap flashes, which could break e.g. the redboot parser.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
This commit is contained in:
Jonas Gorski 2016-08-09 11:23:32 +02:00
parent 86ec410418
commit 0ddae04c22
12 changed files with 608 additions and 23 deletions
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78
target/linux/brcm63xx/patches-4.4/000-4.5-01-mtd-add-get-set-of_node-flash_node-helpers.patch Normal file
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From 28b8b26b308e656edfa9467867d5f79212da2ec3 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:20 -0700
Subject: [PATCH] mtd: add get/set of_node/flash_node helpers
We are going to begin using the mtd->dev.of_node field for MTD device
nodes, so let's add helpers for it. Also, we'll be making some
conversions on spi_nor (and nand_chip eventually) too, so get that ready
with their own helpers.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
include/linux/mtd/mtd.h | 11 +++++++++++
include/linux/mtd/nand.h | 11 +++++++++++
include/linux/mtd/spi-nor.h | 11 +++++++++++
3 files changed, 33 insertions(+)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -258,6 +258,17 @@ struct mtd_info {
int usecount;
};
+static inline void mtd_set_of_node(struct mtd_info *mtd,
+ struct device_node *np)
+{
+ mtd->dev.of_node = np;
+}
+
+static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)
+{
+ return mtd->dev.of_node;
+}
+
int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
void **virt, resource_size_t *phys);
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -719,6 +719,17 @@ struct nand_chip {
void *priv;
};
+static inline void nand_set_flash_node(struct nand_chip *chip,
+ struct device_node *np)
+{
+ chip->flash_node = np;
+}
+
+static inline struct device_node *nand_get_flash_node(struct nand_chip *chip)
+{
+ return chip->flash_node;
+}
+
/*
* NAND Flash Manufacturer ID Codes
*/
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -184,6 +184,17 @@ struct spi_nor {
void *priv;
};
+static inline void spi_nor_set_flash_node(struct spi_nor *nor,
+ struct device_node *np)
+{
+ nor->flash_node = np;
+}
+
+static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
+{
+ return nor->flash_node;
+}
+
/**
* spi_nor_scan() - scan the SPI NOR
* @nor: the spi_nor structure

74
target/linux/brcm63xx/patches-4.4/000-4.5-02-mtd-ofpart-grab-device-tree-node-directly-from-maste.patch Normal file
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From 3b6521eab0386a4854d47b1a01947d7dc46ec98d Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:21 -0700
Subject: [PATCH] mtd: ofpart: grab device tree node directly from master
device node
It seems more logical to use a device node directly associated with the
MTD master device (i.e., mtd->dev.of_node field) rather than requiring
auxiliary partition parser information to be passed in by the driver in
a separate struct.
This patch supports the mtd->dev.of_node field and deprecates the parser
data 'of_node' field
Driver conversions may now follow.
Additional side benefit to assigning mtd->dev.of_node rather than using
parser data: the driver core will automatically create a device -> node
symlink for us.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/ofpart.c | 18 ++++++++++--------
include/linux/mtd/partitions.h | 4 +++-
2 files changed, 13 insertions(+), 9 deletions(-)
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -37,10 +37,11 @@ static int parse_ofpart_partitions(struc
bool dedicated = true;
- if (!data)
- return 0;
-
- mtd_node = data->of_node;
+ /*
+ * of_node can be provided through auxiliary parser data or (preferred)
+ * by assigning the master device node
+ */
+ mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master);
if (!mtd_node)
return 0;
@@ -157,10 +158,11 @@ static int parse_ofoldpart_partitions(st
} *part;
const char *names;
- if (!data)
- return 0;
-
- dp = data->of_node;
+ /*
+ * of_node can be provided through auxiliary parser data or (preferred)
+ * by assigning the master device node
+ */
+ dp = data && data->of_node ? data->of_node : mtd_get_of_node(master);
if (!dp)
return 0;
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -56,7 +56,9 @@ struct device_node;
/**
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
* @origin: for RedBoot, start address of MTD device
- * @of_node: for OF parsers, device node containing partitioning information
+ * @of_node: for OF parsers, device node containing partitioning information.
+ * This field is deprecated, as the device node should simply be
+ * assigned to the master struct device.
*/
struct mtd_part_parser_data {
unsigned long origin;

79
target/linux/brcm63xx/patches-4.4/000-4.5-03-spi-nor-convert-to-spi_nor_-get-set-_flash_node.patch Normal file
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From 9c7d787508be6d68a6ec66de3c3466b24e820c71 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:24 -0700
Subject: [PATCH] mtd: spi-nor: convert to spi_nor_{get, set}_flash_node()
Used semantic patch with 'make coccicheck MODE=patch COCCI=script.cocci':
---8<----
virtual patch
@@
struct spi_nor b;
struct spi_nor *c;
expression d;
@@
(
-(b).flash_node = (d)
+spi_nor_set_flash_node(&b, d)
|
-(c)->flash_node = (d)
+spi_nor_set_flash_node(c, d)
)
---8<----
And a manual conversion for the one use of spi_nor_get_flash_node().
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/devices/m25p80.c | 2 +-
drivers/mtd/spi-nor/fsl-quadspi.c | 2 +-
drivers/mtd/spi-nor/nxp-spifi.c | 2 +-
drivers/mtd/spi-nor/spi-nor.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -221,7 +221,7 @@ static int m25p_probe(struct spi_device
nor->read_reg = m25p80_read_reg;
nor->dev = &spi->dev;
- nor->flash_node = spi->dev.of_node;
+ spi_nor_set_flash_node(nor, spi->dev.of_node);
nor->priv = flash;
spi_set_drvdata(spi, flash);
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -1013,7 +1013,7 @@ static int fsl_qspi_probe(struct platfor
mtd = &nor->mtd;
nor->dev = dev;
- nor->flash_node = np;
+ spi_nor_set_flash_node(nor, np);
nor->priv = q;
/* fill the hooks */
--- a/drivers/mtd/spi-nor/nxp-spifi.c
+++ b/drivers/mtd/spi-nor/nxp-spifi.c
@@ -330,7 +330,7 @@ static int nxp_spifi_setup_flash(struct
writel(ctrl, spifi->io_base + SPIFI_CTRL);
spifi->nor.dev = spifi->dev;
- spifi->nor.flash_node = np;
+ spi_nor_set_flash_node(&spifi->nor, np);
spifi->nor.priv = spifi;
spifi->nor.read = nxp_spifi_read;
spifi->nor.write = nxp_spifi_write;
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1109,7 +1109,7 @@ 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;
- struct device_node *np = nor->flash_node;
+ struct device_node *np = spi_nor_get_flash_node(nor);
int ret;
int i;

83
target/linux/brcm63xx/patches-4.4/000-4.5-04-mtd-spi-nor-drop-unnecessary-partition-parser-data.patch Normal file
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From df02c885f8697546da41665f28dde5e30ce99674 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:26 -0700
Subject: [PATCH] mtd: spi-nor: drop unnecessary partition parser data
Now that the SPI-NOR/MTD framework pass the 'flash_node' through to the
partition parsing code, we don't have to do it ourselves.
Also convert to mtd_device_register(), since we don't need the 2nd and
3rd parameters anymore.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/devices/m25p80.c | 8 ++------
drivers/mtd/spi-nor/fsl-quadspi.c | 4 +---
drivers/mtd/spi-nor/nxp-spifi.c | 4 +---
3 files changed, 4 insertions(+), 12 deletions(-)
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -197,7 +197,6 @@ static int m25p80_erase(struct spi_nor *
*/
static int m25p_probe(struct spi_device *spi)
{
- struct mtd_part_parser_data ppdata;
struct flash_platform_data *data;
struct m25p *flash;
struct spi_nor *nor;
@@ -249,11 +248,8 @@ static int m25p_probe(struct spi_device
if (ret)
return ret;
- ppdata.of_node = spi->dev.of_node;
-
- return mtd_device_parse_register(&nor->mtd, NULL, &ppdata,
- data ? data->parts : NULL,
- data ? data->nr_parts : 0);
+ return mtd_device_register(&nor->mtd, data ? data->parts : NULL,
+ data ? data->nr_parts : 0);
}
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -927,7 +927,6 @@ static void fsl_qspi_unprep(struct spi_n
static int fsl_qspi_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
- struct mtd_part_parser_data ppdata;
struct device *dev = &pdev->dev;
struct fsl_qspi *q;
struct resource *res;
@@ -1038,8 +1037,7 @@ static int fsl_qspi_probe(struct platfor
if (ret)
goto mutex_failed;
- ppdata.of_node = np;
- ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+ ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto mutex_failed;
--- a/drivers/mtd/spi-nor/nxp-spifi.c
+++ b/drivers/mtd/spi-nor/nxp-spifi.c
@@ -271,7 +271,6 @@ static void nxp_spifi_dummy_id_read(stru
static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
struct device_node *np)
{
- struct mtd_part_parser_data ppdata;
enum read_mode flash_read;
u32 ctrl, property;
u16 mode = 0;
@@ -361,8 +360,7 @@ static int nxp_spifi_setup_flash(struct
return ret;
}
- ppdata.of_node = np;
- ret = mtd_device_parse_register(&spifi->nor.mtd, NULL, &ppdata, NULL, 0);
+ ret = mtd_device_register(&spifi->nor.mtd, NULL, 0);
if (ret) {
dev_err(spifi->dev, "mtd device parse failed\n");
return ret;

195
target/linux/brcm63xx/patches-4.4/000-4.5-05-mtd-drop-unnecessary-partition-parser-data.patch Normal file
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@ -0,0 +1,195 @@
From 004b5e6031f4e9fd90d565fb213b74cd06d03718 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:28 -0700
Subject: [PATCH] mtd: drop unnecessary partition parser data
We should assign the MTD dev.of_node instead of the parser data field.
This gets us the equivalent partition parser behavior with fewer special
fields and parameter passing.
Also convert several of these to mtd_device_register(), since we don't
need the 2nd and 3rd parameters anymore.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/devices/mtd_dataflash.c | 5 ++---
drivers/mtd/devices/spear_smi.c | 6 ++----
drivers/mtd/devices/st_spi_fsm.c | 5 ++---
drivers/mtd/maps/lantiq-flash.c | 5 ++---
drivers/mtd/maps/physmap_of.c | 5 ++---
drivers/mtd/onenand/omap2.c | 8 +++-----
6 files changed, 13 insertions(+), 21 deletions(-)
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -624,7 +624,6 @@ static int add_dataflash_otp(struct spi_
{
struct dataflash *priv;
struct mtd_info *device;
- struct mtd_part_parser_data ppdata;
struct flash_platform_data *pdata = dev_get_platdata(&spi->dev);
char *otp_tag = "";
int err = 0;
@@ -656,6 +655,7 @@ static int add_dataflash_otp(struct spi_
device->priv = priv;
device->dev.parent = &spi->dev;
+ mtd_set_of_node(device, spi->dev.of_node);
if (revision >= 'c')
otp_tag = otp_setup(device, revision);
@@ -665,8 +665,7 @@ static int add_dataflash_otp(struct spi_
pagesize, otp_tag);
spi_set_drvdata(spi, priv);
- ppdata.of_node = spi->dev.of_node;
- err = mtd_device_parse_register(device, NULL, &ppdata,
+ err = mtd_device_register(device,
pdata ? pdata->parts : NULL,
pdata ? pdata->nr_parts : 0);
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -810,7 +810,6 @@ static int spear_smi_setup_banks(struct
u32 bank, struct device_node *np)
{
struct spear_smi *dev = platform_get_drvdata(pdev);
- struct mtd_part_parser_data ppdata = {};
struct spear_smi_flash_info *flash_info;
struct spear_smi_plat_data *pdata;
struct spear_snor_flash *flash;
@@ -855,6 +854,7 @@ static int spear_smi_setup_banks(struct
flash->mtd.name = flash_devices[flash_index].name;
flash->mtd.dev.parent = &pdev->dev;
+ mtd_set_of_node(&flash->mtd, np);
flash->mtd.type = MTD_NORFLASH;
flash->mtd.writesize = 1;
flash->mtd.flags = MTD_CAP_NORFLASH;
@@ -881,10 +881,8 @@ static int spear_smi_setup_banks(struct
count = flash_info->nr_partitions;
}
#endif
- ppdata.of_node = np;
- ret = mtd_device_parse_register(&flash->mtd, NULL, &ppdata, parts,
- count);
+ ret = mtd_device_register(&flash->mtd, parts, count);
if (ret) {
dev_err(&dev->pdev->dev, "Err MTD partition=%d\n", ret);
return ret;
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -2025,7 +2025,6 @@ boot_device_fail:
static int stfsm_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
- struct mtd_part_parser_data ppdata;
struct flash_info *info;
struct resource *res;
struct stfsm *fsm;
@@ -2035,7 +2034,6 @@ static int stfsm_probe(struct platform_d
dev_err(&pdev->dev, "No DT found\n");
return -EINVAL;
}
- ppdata.of_node = np;
fsm = devm_kzalloc(&pdev->dev, sizeof(*fsm), GFP_KERNEL);
if (!fsm)
@@ -2106,6 +2104,7 @@ static int stfsm_probe(struct platform_d
fsm->mtd.name = info->name;
fsm->mtd.dev.parent = &pdev->dev;
+ mtd_set_of_node(&fsm->mtd, np);
fsm->mtd.type = MTD_NORFLASH;
fsm->mtd.writesize = 4;
fsm->mtd.writebufsize = fsm->mtd.writesize;
@@ -2124,7 +2123,7 @@ static int stfsm_probe(struct platform_d
(long long)fsm->mtd.size, (long long)(fsm->mtd.size >> 20),
fsm->mtd.erasesize, (fsm->mtd.erasesize >> 10));
- return mtd_device_parse_register(&fsm->mtd, NULL, &ppdata, NULL, 0);
+ return mtd_device_register(&fsm->mtd, NULL, 0);
}
static int stfsm_remove(struct platform_device *pdev)
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -110,7 +110,6 @@ ltq_copy_to(struct map_info *map, unsign
static int
ltq_mtd_probe(struct platform_device *pdev)
{
- struct mtd_part_parser_data ppdata;
struct ltq_mtd *ltq_mtd;
struct cfi_private *cfi;
int err;
@@ -161,13 +160,13 @@ ltq_mtd_probe(struct platform_device *pd
}
ltq_mtd->mtd->dev.parent = &pdev->dev;
+ mtd_set_of_node(ltq_mtd->mtd, pdev->dev.of_node);
cfi = ltq_mtd->map->fldrv_priv;
cfi->addr_unlock1 ^= 1;
cfi->addr_unlock2 ^= 1;
- ppdata.of_node = pdev->dev.of_node;
- err = mtd_device_parse_register(ltq_mtd->mtd, NULL, &ppdata, NULL, 0);
+ err = mtd_device_register(ltq_mtd->mtd, NULL, 0);
if (err) {
dev_err(&pdev->dev, "failed to add partitions\n");
goto err_destroy;
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -128,7 +128,6 @@ static int of_flash_probe(struct platfor
int reg_tuple_size;
struct mtd_info **mtd_list = NULL;
resource_size_t res_size;
- struct mtd_part_parser_data ppdata;
bool map_indirect;
const char *mtd_name = NULL;
@@ -272,8 +271,8 @@ static int of_flash_probe(struct platfor
if (err)
goto err_out;
- ppdata.of_node = dp;
- mtd_device_parse_register(info->cmtd, part_probe_types_def, &ppdata,
+ mtd_set_of_node(info->cmtd, dp);
+ mtd_device_parse_register(info->cmtd, part_probe_types_def, NULL,
NULL, 0);
kfree(mtd_list);
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -614,7 +614,6 @@ static int omap2_onenand_probe(struct pl
struct onenand_chip *this;
int r;
struct resource *res;
- struct mtd_part_parser_data ppdata = {};
pdata = dev_get_platdata(&pdev->dev);
if (pdata == NULL) {
@@ -713,6 +712,7 @@ static int omap2_onenand_probe(struct pl
c->mtd.priv = &c->onenand;
c->mtd.dev.parent = &pdev->dev;
+ mtd_set_of_node(&c->mtd, pdata->of_node);
this = &c->onenand;
if (c->dma_channel >= 0) {
@@ -743,10 +743,8 @@ static int omap2_onenand_probe(struct pl
if ((r = onenand_scan(&c->mtd, 1)) < 0)
goto err_release_regulator;
- ppdata.of_node = pdata->of_node;
- r = mtd_device_parse_register(&c->mtd, NULL, &ppdata,
- pdata ? pdata->parts : NULL,
- pdata ? pdata->nr_parts : 0);
+ r = mtd_device_register(&c->mtd, pdata ? pdata->parts : NULL,
+ pdata ? pdata->nr_parts : 0);
if (r)
goto err_release_onenand;

61
target/linux/brcm63xx/patches-4.4/000-4.5-06-mtd-ofpart-drop-of_node-partition-parser-data.patch Normal file
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@ -0,0 +1,61 @@
From e270bca531b40cd0a143176eb093d173b9c6f418 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:29 -0700
Subject: [PATCH] mtd: ofpart: drop 'of_node' partition parser data
This field is no longer used anywhere, as it is superseded by
mtd->dev.of_node.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/ofpart.c | 14 ++++----------
include/linux/mtd/partitions.h | 4 ----
2 files changed, 4 insertions(+), 14 deletions(-)
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -37,11 +37,8 @@ static int parse_ofpart_partitions(struc
bool dedicated = true;
- /*
- * of_node can be provided through auxiliary parser data or (preferred)
- * by assigning the master device node
- */
- mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master);
+ /* Pull of_node from the master device node */
+ mtd_node = mtd_get_of_node(master);
if (!mtd_node)
return 0;
@@ -158,11 +155,8 @@ static int parse_ofoldpart_partitions(st
} *part;
const char *names;
- /*
- * of_node can be provided through auxiliary parser data or (preferred)
- * by assigning the master device node
- */
- dp = data && data->of_node ? data->of_node : mtd_get_of_node(master);
+ /* Pull of_node from the master device node */
+ dp = mtd_get_of_node(master);
if (!dp)
return 0;
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -56,13 +56,9 @@ struct device_node;
/**
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
* @origin: for RedBoot, start address of MTD device
- * @of_node: for OF parsers, device node containing partitioning information.
- * This field is deprecated, as the device node should simply be
- * assigned to the master struct device.
*/
struct mtd_part_parser_data {
unsigned long origin;
- struct device_node *of_node;
};

13
target/linux/brcm63xx/patches-4.4/120-mtdpart_fixup_generic_partprobe.patch Normal file
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@ -0,0 +1,13 @@
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -978,8 +978,8 @@ int parse_mtd_partitions(struct mtd_info
int ret, err = 0;
const char *const *types_of = NULL;
- if (data && data->of_node) {
- types_of = of_get_probes(data->of_node);
+ if (mtd_get_of_node(master)) {
+ types_of = of_get_probes(mtd_get_of_node(master));
if (types_of != NULL)
types = types_of;
}

17
target/linux/brcm63xx/patches-4.4/202-MTD-DEVICES-m25p80-use-parsers-if-provided-in-flash-.patch
View file

@ -11,13 +11,16 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -251,7 +251,8 @@ static int m25p_probe(struct spi_device
@@ -248,8 +248,10 @@ static int m25p_probe(struct spi_device
if (ret)
return ret;
ppdata.of_node = spi->dev.of_node;
- return mtd_device_parse_register(&nor->mtd, NULL, &ppdata,
- return mtd_device_register(&nor->mtd, data ? data->parts : NULL,
- data ? data->nr_parts : 0);
+ return mtd_device_parse_register(&nor->mtd,
+ data ? data->part_probe_types : NULL, &ppdata,
data ? data->parts : NULL,
data ? data->nr_parts : 0);
+ data ? data->part_probe_types : NULL, NULL,
+ data ? data->parts : NULL,
+ data ? data->nr_parts : 0);
}

2
target/linux/brcm63xx/patches-4.4/203-MTD-DEVICES-m25p80-add-support-for-limiting-reads.patch
View file

@ -58,7 +58,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
static int m25p80_erase(struct spi_nor *nor, loff_t offset)
{
struct m25p *flash = nor->priv;
@@ -245,6 +269,9 @@ static int m25p_probe(struct spi_device
@@ -244,6 +268,9 @@ static int m25p_probe(struct spi_device
else
flash_name = spi->modalias;

20
target/linux/brcm63xx/patches-4.4/414-MTD-m25p80-allow-passing-pp_data.patch
View file

@ -4,22 +4,22 @@ Date: Tue, 1 May 2012 17:33:03 +0200
Subject: [PATCH 64/79] MTD: m25p80: allow passing pp_data
---
drivers/mtd/devices/m25p80.c | 3 +++
drivers/mtd/devices/m25p80.c | 5 +++--
include/linux/spi/flash.h | 2 ++
2 files changed, 5 insertions(+)
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -272,6 +272,9 @@ static int m25p_probe(struct spi_device
if (data)
flash->max_transfer_len = data->max_transfer_len;
+ if (data && data->pp_data)
+ memcpy(&ppdata, data->pp_data, sizeof(ppdata));
+
ret = spi_nor_scan(nor, flash_name, mode);
if (ret)
@@ -276,7 +276,8 @@ static int m25p_probe(struct spi_device
return ret;
return mtd_device_parse_register(&nor->mtd,
- data ? data->part_probe_types : NULL, NULL,
+ data ? data->part_probe_types : NULL,
+ data ? data->pp_data : NULL,
data ? data->parts : NULL,
data ? data->nr_parts : 0);
}
--- a/include/linux/spi/flash.h
+++ b/include/linux/spi/flash.h
@@ -12,6 +12,7 @@ struct mtd_part_parser_data;

5
target/linux/brcm63xx/patches-4.4/417-MTD-bcm63xxpart-allow-passing-a-caldata-offset.patch
View file

@ -105,16 +105,15 @@ contained in flash.
pr_info("Partition %d is %s offset %llx and length %llx\n", i,
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -56,10 +56,12 @@ struct device_node;
@@ -56,9 +56,11 @@ struct device_node;
/**
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
* @origin: for RedBoot, start address of MTD device
+ * @caldata: for CFE, start address of wifi calibration data
* @of_node: for OF parsers, device node containing partitioning information
*/
struct mtd_part_parser_data {
unsigned long origin;
+ unsigned long caldata[2];
struct device_node *of_node;
};

4
target/linux/brcm63xx/patches-4.4/425-bcm63xxpart_parse_paritions_from_dt.patch
View file

@ -155,7 +155,7 @@
+ struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct device_node *dp = data->of_node;
+ struct device_node *dp = mtd_get_of_node(master);
+ struct device_node *pp;
+ int i, nr_parts = 0;
+ const char *partname;
@ -342,7 +342,7 @@
+ struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ if (data && data->of_node)
+ if (mtd_get_of_node(master))
+ return bcm63xx_parse_cfe_partitions_of(master, pparts, data);
+ else
+ return bcm63xx_parse_cfe_partitions(master, pparts, data);