kernel: 3.14: update bcm47xxpart

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

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

SVN-Revision: 42212

3 files changed, 144 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch b/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch
new file mode 100644
index 0000000..540db6f
--- /dev/null
+++ b/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch
@@ -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;
+ 		}
diff --git a/target/linux/generic/patches-3.14/049-mtd-bcm47xxpart-find-NVRAM-partitions-in-middle-bloc.patch b/target/linux/generic/patches-3.14/049-mtd-bcm47xxpart-find-NVRAM-partitions-in-middle-bloc.patch
new file mode 100644
index 0000000..48f8d36
--- /dev/null
+++ b/target/linux/generic/patches-3.14/049-mtd-bcm47xxpart-find-NVRAM-partitions-in-middle-bloc.patch
@@ -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) {
diff --git a/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch b/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch
new file mode 100644
index 0000000..8c63803
--- /dev/null
+++ b/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch
@@ -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++;
+