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kernel: 3.14: update bcm47xxpart

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It it used by brcm47xx and bcm53xx targets, so put patches in generic.

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

SVN-Revision: 42212
This commit is contained in:
Hauke Mehrtens 2014-08-18 21:57:54 +00:00
parent 770ba9d40f
commit 4a9acacf53
5 changed files with 147 additions and 2 deletions
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1
target/linux/bcm53xx/config-3.14
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@ -165,6 +165,7 @@ CONFIG_MDIO_BOARDINFO=y
CONFIG_MIGHT_HAVE_PCI=y
# CONFIG_MLX5_CORE is not set
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MTD_BCM47XX_PARTS=y
# CONFIG_MTD_PHYSMAP_OF is not set
CONFIG_MULTI_IRQ_HANDLER=y
CONFIG_MUTEX_SPIN_ON_OWNER=y

4
target/linux/brcm47xx/patches-3.14/027-mtd-bcm47xxpart-get-nvram.patch
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@ -1,6 +1,6 @@
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -68,6 +68,7 @@ static int bcm47xxpart_parse(struct mtd_
@@ -89,6 +89,7 @@ static int bcm47xxpart_parse(struct mtd_
int trx_part = -1;
int last_trx_part = -1;
int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
@ -8,7 +8,7 @@
if (blocksize <= 0x10000)
blocksize = 0x10000;
@@ -229,12 +230,23 @@ static int bcm47xxpart_parse(struct mtd_
@@ -269,12 +270,23 @@ static int bcm47xxpart_parse(struct mtd_
if (buf[0] == NVRAM_HEADER) {
bcm47xxpart_add_part(&parts[curr_part++], "nvram",
master->size - blocksize, 0);

59
target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch Normal file
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@ -0,0 +1,59 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -150,7 +150,7 @@ config MTD_BCM63XX_PARTS
config MTD_BCM47XX_PARTS
tristate "BCM47XX partitioning support"
- depends on BCM47XX
+ depends on BCM47XX || ARCH_BCM_5301X
help
This provides partitions parser for devices based on BCM47xx
boards.
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -14,7 +14,6 @@
#include <linux/slab.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
-#include <bcm47xx_nvram.h>
/* 10 parts were found on sflash on Netgear WNDR4500 */
#define BCM47XXPART_MAX_PARTS 12
@@ -30,6 +29,7 @@
#define BOARD_DATA_MAGIC2 0xBD0D0BBD
#define CFE_MAGIC 0x43464531 /* 1EFC */
#define FACTORY_MAGIC 0x59544346 /* FCTY */
+#define NVRAM_HEADER 0x48534C46 /* FLSH */
#define POT_MAGIC1 0x54544f50 /* POTT */
#define POT_MAGIC2 0x504f /* OP */
#define ML_MAGIC1 0x39685a42
@@ -91,7 +91,7 @@ static int bcm47xxpart_parse(struct mtd_
if (offset >= 0x2000000)
break;
- if (curr_part > BCM47XXPART_MAX_PARTS) {
+ if (curr_part >= BCM47XXPART_MAX_PARTS) {
pr_warn("Reached maximum number of partitions, scanning stopped!\n");
break;
}
@@ -147,6 +147,11 @@ static int bcm47xxpart_parse(struct mtd_
/* TRX */
if (buf[0x000 / 4] == TRX_MAGIC) {
+ if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
+ pr_warn("Not enough partitions left to register trx, scanning stopped!\n");
+ break;
+ }
+
trx = (struct trx_header *)buf;
trx_part = curr_part;
@@ -212,7 +217,7 @@ static int bcm47xxpart_parse(struct mtd_
/* Look for NVRAM at the end of the last block. */
for (i = 0; i < ARRAY_SIZE(possible_nvram_sizes); i++) {
- if (curr_part > BCM47XXPART_MAX_PARTS) {
+ if (curr_part >= BCM47XXPART_MAX_PARTS) {
pr_warn("Reached maximum number of partitions, scanning stopped!\n");
break;
}

19
target/linux/generic/patches-3.14/049-mtd-bcm47xxpart-find-NVRAM-partitions-in-middle-bloc.patch Normal file
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@ -0,0 +1,19 @@
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -199,6 +199,16 @@ static int bcm47xxpart_parse(struct mtd_
continue;
}
+ /* New (ARM?) devices may have NVRAM in some middle block. Last
+ * block will be checked later, so skip it.
+ */
+ if (offset != master->size - blocksize &&
+ buf[0x000 / 4] == NVRAM_HEADER) {
+ bcm47xxpart_add_part(&parts[curr_part++], "nvram",
+ offset, 0);
+ continue;
+ }
+
/* Read middle of the block */
if (mtd_read(master, offset + 0x8000, 0x4,
&bytes_read, (uint8_t *)buf) < 0) {

66
target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch Normal file
View File

@ -0,0 +1,66 @@
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -36,6 +36,7 @@
#define ML_MAGIC2 0x26594131
#define TRX_MAGIC 0x30524448
#define SQSH_MAGIC 0x71736873 /* shsq */
+#define UBI_EC_MAGIC 0x23494255 /* UBI# */
struct trx_header {
uint32_t magic;
@@ -46,7 +47,7 @@ struct trx_header {
uint32_t offset[3];
} __packed;
-static void bcm47xxpart_add_part(struct mtd_partition *part, char *name,
+static void bcm47xxpart_add_part(struct mtd_partition *part, const char *name,
u64 offset, uint32_t mask_flags)
{
part->name = name;
@@ -54,6 +55,26 @@ static void bcm47xxpart_add_part(struct
part->mask_flags = mask_flags;
}
+static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
+ size_t offset)
+{
+ uint32_t buf;
+ size_t bytes_read;
+
+ if (mtd_read(master, offset, sizeof(&buf), &bytes_read,
+ (uint8_t *)&buf) < 0) {
+ pr_err("mtd_read error while parsing (offset: 0x%X)!\n",
+ offset);
+ goto out_default;
+ }
+
+ if (buf == UBI_EC_MAGIC)
+ return "ubi";
+
+out_default:
+ return "rootfs";
+}
+
static int bcm47xxpart_parse(struct mtd_info *master,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
@@ -147,6 +168,8 @@ static int bcm47xxpart_parse(struct mtd_
/* TRX */
if (buf[0x000 / 4] == TRX_MAGIC) {
+ const char *name;
+
if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
pr_warn("Not enough partitions left to register trx, scanning stopped!\n");
break;
@@ -177,7 +200,9 @@ static int bcm47xxpart_parse(struct mtd_
* trx->length - trx->offset[i]. We don't fill it as
* we want to have jffs2 (overlay) in the same mtd.
*/
- bcm47xxpart_add_part(&parts[curr_part++], "rootfs",
+ name = bcm47xxpart_trx_data_part_name(master,
+ offset + trx->offset[i]);
+ bcm47xxpart_add_part(&parts[curr_part++], name,
offset + trx->offset[i], 0);
i++;