bcm53xx: use bcm47xx_nvram.c with the latest patches

[librecmc/librecmc.git] / target / linux / bcm53xx / files / drivers / firmware / broadcom / bcm47xx_nvram.c

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 b6e1cc733d490a189d697d709b2229140a48b101..d0055a4bdfd88e2fdd9dd3865af6c7939124360e 100644 (file)
--- 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