MIPS: BCM47XX: Clean up nvram header

1) Move private defines to the .c file
2) Move SPROM helper to the sprom.c
3) Drop unused code
4) Rename magic to the NVRAM_MAGIC
5) Add const to the char pointer we never modify

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8289/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
index 8b64991..c5c381c 100644 (file)
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -18,6 +18,19 @@
 #include <linux/mtd/mtd.h>
 #include <bcm47xx_nvram.h>
 
+#define NVRAM_MAGIC            0x48534C46      /* 'FLSH' */
+#define NVRAM_SPACE            0x8000
+
+#define FLASH_MIN              0x00020000      /* Minimum flash size */
+
+struct nvram_header {
+       u32 magic;
+       u32 len;
+       u32 crc_ver_init;       /* 0:7 crc, 8:15 ver, 16:31 sdram_init */
+       u32 config_refresh;     /* 0:15 sdram_config, 16:31 sdram_refresh */
+       u32 config_ncdl;        /* ncdl values for memc */
+};
+
 static char nvram_buf[NVRAM_SPACE];
 static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
 
@@ -28,7 +41,7 @@ static u32 find_nvram_size(void __iomem *end)
 
        for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
                header = (struct nvram_header *)(end - nvram_sizes[i]);
-               if (header->magic == NVRAM_HEADER)
+               if (header->magic == NVRAM_MAGIC)
                        return nvram_sizes[i];
        }
 
@@ -63,13 +76,13 @@ static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
 
        /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
        header = (struct nvram_header *)(iobase + 4096);
-       if (header->magic == NVRAM_HEADER) {
+       if (header->magic == NVRAM_MAGIC) {
                size = NVRAM_SPACE;
                goto found;
        }
 
        header = (struct nvram_header *)(iobase + 1024);
-       if (header->magic == NVRAM_HEADER) {
+       if (header->magic == NVRAM_MAGIC) {
                size = NVRAM_SPACE;
                goto found;
        }
@@ -139,7 +152,7 @@ static int nvram_init(void)
 
                err = mtd_read(mtd, from, sizeof(header), &bytes_read,
                               (uint8_t *)&header);
-               if (!err && header.magic == NVRAM_HEADER) {
+               if (!err && header.magic == NVRAM_MAGIC) {
                        u8 *dst = (uint8_t *)nvram_buf;
                        size_t len = header.len;
 
@@ -162,7 +175,7 @@ static int nvram_init(void)
        return -ENXIO;
 }
 
-int bcm47xx_nvram_getenv(char *name, char *val, size_t val_len)
+int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len)
 {
        char *var, *value, *end, *eq;
        int err;

diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
index e772e77..2eff7fe 100644 (file)
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -136,6 +136,20 @@ static void nvram_read_leddc(const char *prefix, const char *name,
        *leddc_off_time = (val >> 16) & 0xff;
 }
 
+static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
+{
+       if (strchr(buf, ':'))
+               sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
+                       &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+                       &macaddr[5]);
+       else if (strchr(buf, '-'))
+               sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
+                       &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+                       &macaddr[5]);
+       else
+               pr_warn("Can not parse mac address: %s\n", buf);
+}
+
 static void nvram_read_macaddr(const char *prefix, const char *name,
                               u8 val[6], bool fallback)
 {

diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
index 676be22..ee59ffe 100644 (file)
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
@@ -14,41 +14,8 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 
-struct nvram_header {
-       u32 magic;
-       u32 len;
-       u32 crc_ver_init;       /* 0:7 crc, 8:15 ver, 16:31 sdram_init */
-       u32 config_refresh;     /* 0:15 sdram_config, 16:31 sdram_refresh */
-       u32 config_ncdl;        /* ncdl values for memc */
-};
-
-#define NVRAM_HEADER           0x48534C46      /* 'FLSH' */
-#define NVRAM_VERSION          1
-#define NVRAM_HEADER_SIZE      20
-#define NVRAM_SPACE            0x8000
-
-#define FLASH_MIN              0x00020000      /* Minimum flash size */
-
-#define NVRAM_MAX_VALUE_LEN 255
-#define NVRAM_MAX_PARAM_LEN 64
-
 int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
-extern int bcm47xx_nvram_getenv(char *name, char *val, size_t val_len);
-
-static inline void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
-{
-       if (strchr(buf, ':'))
-               sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
-                       &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
-                       &macaddr[5]);
-       else if (strchr(buf, '-'))
-               sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
-                       &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
-                       &macaddr[5]);
-       else
-               printk(KERN_WARNING "Can not parse mac address: %s\n", buf);
-}
-
+int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
 int bcm47xx_nvram_gpio_pin(const char *name);
 
 #endif /* __BCM47XX_NVRAM_H */