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From 341097f17c76b3dd39539526a2af9e7fff43705e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Thu, 30 Oct 2014 12:50:03 +0100
Subject: [PATCH] MIPS: BCM47XX: Clean up nvram header
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
arch/mips/bcm47xx/nvram.c | 23 ++++++++++----
arch/mips/bcm47xx/sprom.c | 14 +++++++++
arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h | 35 +---------------------
3 files changed, 33 insertions(+), 39 deletions(-)
diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
index 8b64991..c5c381c 100644
--- 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
--- 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
--- 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 */
--
1.8.4.5
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