diff options
Diffstat (limited to 'target/linux/bcm53xx/files/drivers/firmware')
| -rw-r--r-- | target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c b/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c index b6e1cc7..d0055a4 100644 --- a/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c +++ b/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c @@ -11,6 +11,7 @@ * option) any later version. */ +#include <linux/io.h> #include <linux/types.h> #include <linux/module.h> #include <linux/kernel.h> @@ -19,7 +20,7 @@ #include <linux/bcm47xx_nvram.h> #define NVRAM_MAGIC 0x48534C46 /* 'FLSH' */ -#define NVRAM_SPACE 0x8000 +#define NVRAM_SPACE 0x10000 #define NVRAM_MAX_GPIO_ENTRIES 32 #define NVRAM_MAX_GPIO_VALUE_LEN 30 @@ -138,36 +139,28 @@ static int nvram_init(void) struct mtd_info *mtd; struct nvram_header header; size_t bytes_read; - int err, i; + int err; mtd = get_mtd_device_nm("nvram"); if (IS_ERR(mtd)) return -ENODEV; - for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) { - loff_t from = mtd->size - nvram_sizes[i]; - - if (from < 0) - continue; - - err = mtd_read(mtd, from, sizeof(header), &bytes_read, - (uint8_t *)&header); - if (!err && header.magic == NVRAM_MAGIC) { - u8 *dst = (uint8_t *)nvram_buf; - size_t len = header.len; + err = mtd_read(mtd, 0, sizeof(header), &bytes_read, (uint8_t *)&header); + if (!err && header.magic == NVRAM_MAGIC) { + u8 *dst = (uint8_t *)nvram_buf; + size_t len = header.len; - if (header.len > NVRAM_SPACE) { - pr_err("nvram on flash (%i bytes) is bigger than the reserved space in memory, will just copy the first %i bytes\n", - header.len, NVRAM_SPACE); - len = NVRAM_SPACE; - } + if (header.len > NVRAM_SPACE) { + pr_err("nvram on flash (%i bytes) is bigger than the reserved space in memory, will just copy the first %i bytes\n", + header.len, NVRAM_SPACE); + len = NVRAM_SPACE; + } - err = mtd_read(mtd, from, len, &bytes_read, dst); - if (err) - return err; + err = mtd_read(mtd, 0, len, &bytes_read, dst); + if (err) + return err; - return 0; - } + return 0; } #endif |