Also replace SPROM patch with (the same) mainlined version. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 45227master
Rafał Miłecki
10 years ago
parent
546ba7a39f
commit
aefcd2b84c
@ -0,0 +1,88 @@ |
||||
From 9d1d08646af4491aec41d40341930b9bfd62ffa9 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||||
Date: Wed, 29 Oct 2014 10:05:06 +0100
|
||||
Subject: [PATCH] MIPS: BCM47XX: Use mtd as an alternative way/API to get NVRAM
|
||||
content
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
NVRAM can be read using magic memory offset, but after all it's just a
|
||||
flash partition. On platforms where NVRAM isn't needed early we can get
|
||||
it using mtd subsystem.
|
||||
|
||||
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/8266/
|
||||
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
||||
---
|
||||
arch/mips/bcm47xx/nvram.c | 42 ++++++++++++++++++++++++++++++++++++++----
|
||||
1 file changed, 38 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
|
||||
index 21712fb..8b64991 100644
|
||||
--- a/arch/mips/bcm47xx/nvram.c
|
||||
+++ b/arch/mips/bcm47xx/nvram.c
|
||||
@@ -13,12 +13,10 @@
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/module.h>
|
||||
-#include <linux/ssb/ssb.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/string.h>
|
||||
-#include <asm/addrspace.h>
|
||||
+#include <linux/mtd/mtd.h>
|
||||
#include <bcm47xx_nvram.h>
|
||||
-#include <asm/mach-bcm47xx/bcm47xx.h>
|
||||
|
||||
static char nvram_buf[NVRAM_SPACE];
|
||||
static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
|
||||
@@ -123,7 +121,43 @@ int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
|
||||
|
||||
static int nvram_init(void)
|
||||
{
|
||||
- /* TODO: Look for MTD "nvram" partition */
|
||||
+#ifdef CONFIG_MTD
|
||||
+ struct mtd_info *mtd;
|
||||
+ struct nvram_header header;
|
||||
+ size_t bytes_read;
|
||||
+ int err, i;
|
||||
+
|
||||
+ 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_HEADER) {
|
||||
+ 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;
|
||||
+ }
|
||||
+
|
||||
+ err = mtd_read(mtd, from, len, &bytes_read, dst);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ memset(dst + bytes_read, 0x0, NVRAM_SPACE - bytes_read);
|
||||
+
|
||||
+ return 0;
|
||||
+ }
|
||||
+ }
|
||||
+#endif
|
||||
|
||||
return -ENXIO;
|
||||
}
|
||||
--
|
||||
1.8.4.5
|
||||
|
||||
@ -0,0 +1,167 @@ |
||||
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
|
||||
|
||||
Loading…
Reference in new issue