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mediatek: patch block2mtd to allow cmdlineparts to work

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Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 49067
This commit is contained in:
John Crispin 2016-03-23 11:12:34 +00:00
parent 30d3a8c512
commit dd70bcc089
2 changed files with 34 additions and 1 deletions
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3
target/linux/mediatek/config-4.4
View file

@ -56,7 +56,7 @@ CONFIG_CLKSRC_MMIO=y
CONFIG_CLKSRC_OF=y
CONFIG_CLKSRC_PROBE=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_CMDLINE="earlyprintk console=ttyS0,115200 block2mtd=/dev/mmcblk0,65536,eMMC,5 mtdparts=eMMC:256k(mbr),512k(uboot),256k(config),256k(factory),32M(bootimg),32M(recovery),1024M(rootfs),2048M(usrdata),-(bmtpool)"
CONFIG_CMDLINE="earlyprintk console=ttyS0,115200 block2mtd.block2mtd=/dev/mmcblk0,65536,eMMC,5 mtdparts=eMMC:256k(mbr)ro,512k(uboot)ro,256k(config)ro,256k(factory)ro,32M(bootimg),32M(recovery),1024M(rootfs),2048M(usrdata),-(bmtpool)"
CONFIG_CMDLINE_FORCE=y
CONFIG_COMMON_CLK=y
CONFIG_COMMON_CLK_MEDIATEK=y
@ -279,6 +279,7 @@ CONFIG_MMC_SDHCI_PLTFM=y
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MTD_BLOCK2MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTK_INFRACFG=y

32
target/linux/mediatek/patches-4.4/0100-block2mtd.patch Normal file
View file

@ -0,0 +1,32 @@
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -32,6 +32,8 @@
#include <linux/slab.h>
#include <linux/major.h>
+static const char * const block2mtd_probe_types[] = { "cmdlinepart", NULL };
+
/* Info for the block device */
struct block2mtd_dev {
struct list_head list;
@@ -227,6 +229,7 @@
#endif
const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
struct block_device *bdev = ERR_PTR(-ENODEV);
+ struct mtd_part_parser_data ppdata = { 0 };
struct block2mtd_dev *dev;
struct mtd_partition *part;
char *name;
@@ -307,11 +310,7 @@
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;
- part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
- part->name = name;
- part->offset = 0;
- part->size = dev->mtd.size;
- if (mtd_device_register(&dev->mtd, part, 1)) {
+ if (mtd_device_parse_register(&dev->mtd, block2mtd_probe_types, &ppdata, NULL, 0)) {
/* Device didn't get added, so free the entry */
goto err_destroy_mutex;
}