openwrtv4/target/linux/brcm63xx/patches-4.9/311-bcm63xxpart_use_cfedetection.patch
Jonas Gorski b0c5e8b927 brcm63xx: add kernel 4.9 support
Add support for kernel 4.9 based on the more upstream comformant
partition defintions. Increases compressed kernel size by ~95k
compared to 4.4.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2018-02-11 23:15:05 +01:00

51 lines
1.2 KiB
Diff

--- a/drivers/mtd/bcm63xxpart.c
+++ b/drivers/mtd/bcm63xxpart.c
@@ -35,6 +35,8 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/of.h>
+
+#include <asm/mach-bcm63xx/bcm63xx_board.h>
#define BCM963XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */
@@ -46,30 +48,6 @@
#define STR_NULL_TERMINATE(x) \
do { char *_str = (x); _str[sizeof(x) - 1] = 0; } while (0)
-static int bcm63xx_detect_cfe(struct mtd_info *master)
-{
- char buf[9];
- int ret;
- size_t retlen;
-
- ret = mtd_read(master, BCM963XX_CFE_VERSION_OFFSET, 5, &retlen,
- (void *)buf);
- buf[retlen] = 0;
-
- if (ret)
- return ret;
-
- if (strncmp("cfe-v", buf, 5) == 0)
- return 0;
-
- /* very old CFE's do not have the cfe-v string, so check for magic */
- ret = mtd_read(master, BCM963XX_CFE_MAGIC_OFFSET, 8, &retlen,
- (void *)buf);
- buf[retlen] = 0;
-
- return strncmp("CFE1CFE1", buf, 8);
-}
-
static int bcm63xx_read_nvram(struct mtd_info *master,
struct bcm963xx_nvram *nvram)
{
@@ -152,7 +130,7 @@ static int bcm63xx_parse_cfe_partitions(
struct bcm963xx_nvram *nvram = NULL;
int ret;
- if (bcm63xx_detect_cfe(master))
+ if (!bcm63xx_is_cfe_present())
return -EINVAL;
nvram = vzalloc(sizeof(*nvram));