diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-4.0/031-08-mips-bcm47xx-allow-retrieval-of-complete-nvram-conte.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-4.0/031-08-mips-bcm47xx-allow-retrieval-of-complete-nvram-conte.patch | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/target/linux/brcm47xx/patches-4.0/031-08-mips-bcm47xx-allow-retrieval-of-complete-nvram-conte.patch b/target/linux/brcm47xx/patches-4.0/031-08-mips-bcm47xx-allow-retrieval-of-complete-nvram-conte.patch deleted file mode 100644 index bfa93af41c..0000000000 --- a/target/linux/brcm47xx/patches-4.0/031-08-mips-bcm47xx-allow-retrieval-of-complete-nvram-conte.patch +++ /dev/null @@ -1,164 +0,0 @@ -From 2536295c2aeafc769215a6b2883126fa94c90b9a Mon Sep 17 00:00:00 2001 -From: Hante Meuleman <meuleman@broadcom.com> -Date: Thu, 21 May 2015 15:27:23 +0200 -Subject: [PATCH] mips: bcm47xx: allow retrieval of complete nvram contents - -Host platforms such as routers supported by OpenWrt can -support NVRAM reading directly from internal NVRAM store. -The brcmfmac for one requires the complete nvram contents -to select what needs to be sent to wireless device. - -Signed-off-by: Arend van Spriel <arend@broadcom.com> -Signed-off-by: Hante Meuleman <meuleman@broadcom.com> -Reviewed-by: Arend Van Spriel <arend@broadcom.com> -Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> -Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> -Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com> -Cc: linux-mips@linux-mips.org -Patchwork: https://patchwork.linux-mips.org/patch/10093/ -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- - arch/mips/bcm47xx/nvram.c | 60 ++++++++++++++++++++++++++++++++----------- - include/linux/bcm47xx_nvram.h | 15 +++++++++++ - 2 files changed, 60 insertions(+), 15 deletions(-) - -diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c -index 95d028c..2ed762e 100644 ---- a/arch/mips/bcm47xx/nvram.c -+++ b/arch/mips/bcm47xx/nvram.c -@@ -94,17 +94,22 @@ static int nvram_find_and_copy(void __iomem *iobase, u32 lim) - return -ENXIO; - - found: -- if (header->len > size) -- pr_err("The nvram size accoridng to the header seems to be bigger than the partition on flash\n"); -- 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 - 1); -- - src = (u32 *)header; - dst = (u32 *)nvram_buf; - for (i = 0; i < sizeof(struct nvram_header); i += 4) - *dst++ = __raw_readl(src++); -- for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4) -+ header = (struct nvram_header *)nvram_buf; -+ if (header->len > size) { -+ pr_err("The nvram size according to the header seems to be bigger than the partition on flash\n"); -+ header->len = size; -+ } -+ 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 - 1); -+ header->len = NVRAM_SPACE - 1; -+ } -+ /* proceed reading data after header */ -+ for (; i < header->len; i += 4) - *dst++ = readl(src++); - nvram_buf[NVRAM_SPACE - 1] = '\0'; - -@@ -139,6 +144,7 @@ static int nvram_init(void) - #ifdef CONFIG_MTD - struct mtd_info *mtd; - struct nvram_header header; -+ struct nvram_header *pheader; - size_t bytes_read; - int err; - -@@ -147,20 +153,21 @@ static int nvram_init(void) - return -ENODEV; - - 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 (len >= NVRAM_SPACE) { -- len = NVRAM_SPACE - 1; -+ if (!err && header.magic == NVRAM_MAGIC && -+ header.len > sizeof(header)) { -+ 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, len); -+ header.len, NVRAM_SPACE); -+ header.len = NVRAM_SPACE - 1; - } - -- err = mtd_read(mtd, 0, len, &bytes_read, dst); -+ err = mtd_read(mtd, 0, header.len, &bytes_read, -+ (u8 *)nvram_buf); - if (err) - return err; - -+ pheader = (struct nvram_header *)nvram_buf; -+ pheader->len = header.len; - return 0; - } - #endif -@@ -219,3 +226,26 @@ int bcm47xx_nvram_gpio_pin(const char *name) - return -ENOENT; - } - EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin); -+ -+char *bcm47xx_nvram_get_contents(size_t *nvram_size) -+{ -+ int err; -+ char *nvram; -+ struct nvram_header *header; -+ -+ if (!nvram_buf[0]) { -+ err = nvram_init(); -+ if (err) -+ return NULL; -+ } -+ -+ header = (struct nvram_header *)nvram_buf; -+ *nvram_size = header->len - sizeof(struct nvram_header); -+ nvram = vmalloc(*nvram_size); -+ if (!nvram) -+ return NULL; -+ memcpy(nvram, &nvram_buf[sizeof(struct nvram_header)], *nvram_size); -+ -+ return nvram; -+} -+EXPORT_SYMBOL(bcm47xx_nvram_get_contents); -diff --git a/include/linux/bcm47xx_nvram.h b/include/linux/bcm47xx_nvram.h -index b12b07e..c73927c 100644 ---- a/include/linux/bcm47xx_nvram.h -+++ b/include/linux/bcm47xx_nvram.h -@@ -10,11 +10,17 @@ - - #include <linux/types.h> - #include <linux/kernel.h> -+#include <linux/vmalloc.h> - - #ifdef CONFIG_BCM47XX - int bcm47xx_nvram_init_from_mem(u32 base, u32 lim); - int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len); - int bcm47xx_nvram_gpio_pin(const char *name); -+char *bcm47xx_nvram_get_contents(size_t *val_len); -+static inline void bcm47xx_nvram_release_contents(char *nvram) -+{ -+ vfree(nvram); -+}; - #else - static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim) - { -@@ -29,6 +35,15 @@ static inline int bcm47xx_nvram_gpio_pin(const char *name) - { - return -ENOTSUPP; - }; -+ -+static inline char *bcm47xx_nvram_get_contents(size_t *val_len) -+{ -+ return NULL; -+}; -+ -+static inline void bcm47xx_nvram_release_contents(char *nvram) -+{ -+}; - #endif - - #endif /* __BCM47XX_NVRAM_H */ --- -1.8.4.5 - |