After Broadcom switched from MIPS to ARM for their home routers we need
to have NVRAM driver in some common place (not arch/mips/).
We were thinking about putting it in bus directory, however there are
two possible buses for MIPS: drivers/ssb/ and drivers/bcma/. So this
won't fit there neither.
This is why I would like to move this driver to the drivers/misc/
Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
arch/mips/Kconfig | 1 +
arch/mips/bcm47xx/Makefile | 2 +-
arch/mips/bcm47xx/board.c | 2 +-
arch/mips/bcm47xx/nvram.c | 228 --------------------
arch/mips/bcm47xx/setup.c | 1 -
arch/mips/bcm47xx/sprom.c | 1 -
arch/mips/bcm47xx/time.c | 1 -
arch/mips/include/asm/mach-bcm47xx/bcm47xx.h | 1 +
arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h | 21 --
drivers/bcma/driver_mips.c | 2 +-
drivers/misc/Kconfig | 9 +
drivers/misc/Makefile | 1 +
drivers/misc/bcm47xx_nvram.c | 230 +++++++++++++++++++++
drivers/net/ethernet/broadcom/b44.c | 2 +-
drivers/net/ethernet/broadcom/bgmac.c | 2 +-
drivers/ssb/driver_chipcommon_pmu.c | 2 +-
drivers/ssb/driver_mipscore.c | 2 +-
include/linux/bcm47xx_nvram.h | 18 ++
18 files changed, 267 insertions(+), 259 deletions(-)
delete mode 100644 arch/mips/bcm47xx/nvram.c
delete mode 100644 arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
create mode 100644 drivers/misc/bcm47xx_nvram.c
create mode 100644 include/linux/bcm47xx_nvram.h
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 4a7e0c1..3d647e3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -134,6 +134,7 @@ config BCM47XX
select USE_GENERIC_EARLY_PRINTK_8250
select GPIOLIB
select LEDS_GPIO_REGISTER
+ select BCM47XX_NVRAM
help
Support for BCM47XX based boards
diff --git a/arch/mips/bcm47xx/Makefile b/arch/mips/bcm47xx/Makefile
index d58c51b..66bea4e 100644
--- a/arch/mips/bcm47xx/Makefile
+++ b/arch/mips/bcm47xx/Makefile
@@ -3,5 +3,5 @@
# under Linux.
#
-obj-y += irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+obj-y += irq.o prom.o serial.o setup.o time.o sprom.o
obj-y += board.o buttons.o leds.o workarounds.o
diff --git a/arch/mips/bcm47xx/board.c b/arch/mips/bcm47xx/board.c
index b3ae068..6e85130 100644
--- a/arch/mips/bcm47xx/board.c
+++ b/arch/mips/bcm47xx/board.c
@@ -1,8 +1,8 @@
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/string.h>
+#include <bcm47xx.h>
#include <bcm47xx_board.h>
-#include <bcm47xx_nvram.h>
struct bcm47xx_board_type {
const enum bcm47xx_board board;
diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
deleted file mode 100644
index c5c381c..0000000
--- a/arch/mips/bcm47xx/nvram.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * BCM947xx nvram variable access
- *
- * Copyright (C) 2005 Broadcom Corporation
- * Copyright (C) 2006 Felix Fietkau <nbd@xxxxxxxxxxx>
- * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@xxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#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};
-
-static u32 find_nvram_size(void __iomem *end)
-{
- struct nvram_header __iomem *header;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
- header = (struct nvram_header *)(end - nvram_sizes[i]);
- if (header->magic == NVRAM_MAGIC)
- return nvram_sizes[i];
- }
-
- return 0;
-}
-
-/* Probe for NVRAM header */
-static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
-{
- struct nvram_header __iomem *header;
- int i;
- u32 off;
- u32 *src, *dst;
- u32 size;
-
- if (nvram_buf[0]) {
- pr_warn("nvram already initialized\n");
- return -EEXIST;
- }
-
- /* TODO: when nvram is on nand flash check for bad blocks first. */
- off = FLASH_MIN;
- while (off <= lim) {
- /* Windowed flash access */
- size = find_nvram_size(iobase + off);
- if (size) {
- header = (struct nvram_header *)(iobase + off - size);
- goto found;
- }
- off <<= 1;
- }
-
- /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
- header = (struct nvram_header *)(iobase + 4096);
- if (header->magic == NVRAM_MAGIC) {
- size = NVRAM_SPACE;
- goto found;
- }
-
- header = (struct nvram_header *)(iobase + 1024);
- if (header->magic == NVRAM_MAGIC) {
- size = NVRAM_SPACE;
- goto found;
- }
-
- pr_err("no nvram found\n");
- 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);
-
- src = (u32 *) header;
- dst = (u32 *) nvram_buf;
- for (i = 0; i < sizeof(struct nvram_header); i += 4)
- *dst++ = *src++;
- for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4)
- *dst++ = le32_to_cpu(*src++);
- memset(dst, 0x0, NVRAM_SPACE - i);
-
- return 0;
-}
-
-/*
- * On bcm47xx we need access to the NVRAM very early, so we can't use mtd
- * subsystem to access flash. We can't even use platform device / driver to
- * store memory offset.
- * To handle this we provide following symbol. It's supposed to be called as
- * soon as we get info about flash device, before any NVRAM entry is needed.
- */
-int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
-{
- void __iomem *iobase;
- int err;
-
- iobase = ioremap_nocache(base, lim);
- if (!iobase)
- return -ENOMEM;
-
- err = nvram_find_and_copy(iobase, lim);
-
- iounmap(iobase);
-
- return err;
-}
-
-static int nvram_init(void)
-{
-#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_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;
- }
-
- 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;
-}
-
-int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len)
-{
- char *var, *value, *end, *eq;
- int err;
-
- if (!name)
- return -EINVAL;
-
- if (!nvram_buf[0]) {
- err = nvram_init();
- if (err)
- return err;
- }
-
- /* Look for name=value and return value */
- var = &nvram_buf[sizeof(struct nvram_header)];
- end = nvram_buf + sizeof(nvram_buf) - 2;
- end[0] = end[1] = '\0';
- for (; *var; var = value + strlen(value) + 1) {
- eq = strchr(var, '=');
- if (!eq)
- break;
- value = eq + 1;
- if ((eq - var) == strlen(name) &&
- strncmp(var, name, (eq - var)) == 0) {
- return snprintf(val, val_len, "%s", value);
- }
- }
- return -ENOENT;
-}
-EXPORT_SYMBOL(bcm47xx_nvram_getenv);
-
-int bcm47xx_nvram_gpio_pin(const char *name)
-{
- int i, err;
- char nvram_var[10];
- char buf[30];
-
- for (i = 0; i < 32; i++) {
- err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
- if (err <= 0)
- continue;
- err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
- if (err <= 0)
- continue;
- if (!strcmp(name, buf))
- return i;
- }
- return -ENOENT;
-}
-EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin);
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index e43b504..b26c9c2 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -42,7 +42,6 @@
#include <asm/reboot.h>
#include <asm/time.h>
#include <bcm47xx.h>
-#include <bcm47xx_nvram.h>
#include <bcm47xx_board.h>
union bcm47xx_bus bcm47xx_bus;
diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
index 2eff7fe..a077ed2 100644
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -27,7 +27,6 @@
*/
#include <bcm47xx.h>
-#include <bcm47xx_nvram.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
diff --git a/arch/mips/bcm47xx/time.c b/arch/mips/bcm47xx/time.c
index 2c85d92..5b46510 100644
--- a/arch/mips/bcm47xx/time.c
+++ b/arch/mips/bcm47xx/time.c
@@ -27,7 +27,6 @@
#include <linux/ssb/ssb.h>
#include <asm/time.h>
#include <bcm47xx.h>
-#include <bcm47xx_nvram.h>
#include <bcm47xx_board.h>
void __init plat_time_init(void)
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
index 7527c1d..8ed77f6 100644
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
@@ -22,6 +22,7 @@
#include <linux/ssb/ssb.h>
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_soc.h>
+#include <linux/bcm47xx_nvram.h>
enum bcm47xx_bus_type {
#ifdef CONFIG_BCM47XX_SSB
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
deleted file mode 100644
index ee59ffe..0000000
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2005, Broadcom Corporation
- * Copyright (C) 2006, Felix Fietkau <nbd@xxxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __BCM47XX_NVRAM_H
-#define __BCM47XX_NVRAM_H
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-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);
-
-#endif /* __BCM47XX_NVRAM_H */
diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
index 8a653dc..15e278f 100644
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -21,7 +21,7 @@
#include <linux/serial_reg.h>
#include <linux/time.h>
#ifdef CONFIG_BCM47XX
-#include <bcm47xx_nvram.h>
+#include <linux/bcm47xx_nvram.h>
#endif
enum bcma_boot_dev {
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index bbeb451..e8af594 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -84,6 +84,15 @@ config ATMEL_TCB_CLKSRC_BLOCK
TC can be used for other purposes, such as PWM generation and
interval timing.
+config BCM47XX_NVRAM
+ bool "Broadcom NVRAM driver"
+ depends on BCM47XX || ARCH_BCM_5301X
+ help
+ Broadcom home routers contain flash partition called "nvram" with all
+ important hardware configuration as well as some minor user setup.
+ It contains a text-like data representing name=value pairs.
+ This driver provides an easy way to get value of requested parameter.
+
config DUMMY_IRQ
tristate "Dummy IRQ handler"
default n
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 7d5c4cd..611cb7a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o
obj-$(CONFIG_INTEL_MID_PTI) += pti.o
obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o
+obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx_nvram.o
obj-$(CONFIG_BMP085) += bmp085.o
obj-$(CONFIG_BMP085_I2C) += bmp085-i2c.o
obj-$(CONFIG_BMP085_SPI) += bmp085-spi.o
diff --git a/drivers/misc/bcm47xx_nvram.c b/drivers/misc/bcm47xx_nvram.c
new file mode 100644
index 0000000..a4083d7
--- /dev/null
+++ b/drivers/misc/bcm47xx_nvram.c
@@ -0,0 +1,230 @@
+/*
+ * BCM947xx nvram variable access
+ *
+ * Copyright (C) 2005 Broadcom Corporation
+ * Copyright (C) 2006 Felix Fietkau <nbd@xxxxxxxxxxx>
+ * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@xxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/mtd/mtd.h>
+#include <linux/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};
+
+static u32 find_nvram_size(void __iomem *end)
+{
+ struct nvram_header __iomem *header;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
+ header = (struct nvram_header *)(end - nvram_sizes[i]);
+ if (header->magic == NVRAM_MAGIC)
+ return nvram_sizes[i];
+ }
+
+ return 0;
+}
+
+/* Probe for NVRAM header */
+static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
+{
+ struct nvram_header __iomem *header;
+ int i;
+ u32 off;
+ u32 *src, *dst;
+ u32 size;
+
+ if (nvram_buf[0]) {
+ pr_warn("nvram already initialized\n");
+ return -EEXIST;
+ }
+
+ /* TODO: when nvram is on nand flash check for bad blocks first. */
+ off = FLASH_MIN;
+ while (off <= lim) {
+ /* Windowed flash access */
+ size = find_nvram_size(iobase + off);
+ if (size) {
+ header = (struct nvram_header *)(iobase + off - size);
+ goto found;
+ }
+ off <<= 1;
+ }
+
+ /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
+ header = (struct nvram_header *)(iobase + 4096);
+ if (header->magic == NVRAM_MAGIC) {
+ size = NVRAM_SPACE;
+ goto found;
+ }
+
+ header = (struct nvram_header *)(iobase + 1024);
+ if (header->magic == NVRAM_MAGIC) {
+ size = NVRAM_SPACE;
+ goto found;
+ }
+
+ pr_err("no nvram found\n");
+ 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);
+
+ src = (u32 *) header;
+ dst = (u32 *) nvram_buf;
+ for (i = 0; i < sizeof(struct nvram_header); i += 4)
+ *dst++ = *src++;
+ for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4)
+ *dst++ = le32_to_cpu(*src++);
+ memset(dst, 0x0, NVRAM_SPACE - i);
+
+ return 0;
+}
+
+/*
+ * On bcm47xx we need access to the NVRAM very early, so we can't use mtd
+ * subsystem to access flash. We can't even use platform device / driver to
+ * store memory offset.
+ * To handle this we provide following symbol. It's supposed to be called as
+ * soon as we get info about flash device, before any NVRAM entry is needed.
+ */
+int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
+{
+ void __iomem *iobase;
+ int err;
+
+ iobase = ioremap_nocache(base, lim);
+ if (!iobase)
+ return -ENOMEM;
+
+ err = nvram_find_and_copy(iobase, lim);
+
+ iounmap(iobase);
+
+ return err;
+}
+
+static int nvram_init(void)
+{
+#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_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;
+ }
+
+ 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;
+}
+
+int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len)
+{
+ char *var, *value, *end, *eq;
+ int err;
+
+ if (!name)
+ return -EINVAL;
+
+ if (!nvram_buf[0]) {
+ err = nvram_init();
+ if (err)
+ return err;
+ }
+
+ /* Look for name=value and return value */
+ var = &nvram_buf[sizeof(struct nvram_header)];
+ end = nvram_buf + sizeof(nvram_buf) - 2;
+ end[0] = end[1] = '\0';
+ for (; *var; var = value + strlen(value) + 1) {
+ eq = strchr(var, '=');
+ if (!eq)
+ break;
+ value = eq + 1;
+ if ((eq - var) == strlen(name) &&
+ strncmp(var, name, (eq - var)) == 0) {
+ return snprintf(val, val_len, "%s", value);
+ }
+ }
+ return -ENOENT;
+}
+EXPORT_SYMBOL(bcm47xx_nvram_getenv);
+
+int bcm47xx_nvram_gpio_pin(const char *name)
+{
+ int i, err;
+ char nvram_var[10];
+ char buf[30];
+
+ for (i = 0; i < 32; i++) {
+ err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
+ if (err <= 0)
+ continue;
+ err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
+ if (err <= 0)
+ continue;
+ if (!strcmp(name, buf))
+ return i;
+ }
+ return -ENOENT;
+}
+EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin);
+
+MODULE_LICENSE("GPLv2");
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 416620f..2095062 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -400,7 +400,7 @@ static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote)
}
#ifdef CONFIG_BCM47XX
-#include <bcm47xx_nvram.h>
+#include <linux/bcm47xx_nvram.h>
static void b44_wap54g10_workaround(struct b44 *bp)
{
char buf[20];
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 05c6af6..bdda57b 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -16,7 +16,7 @@
#include <linux/phy.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
-#include <bcm47xx_nvram.h>
+#include <linux/bcm47xx_nvram.h>
static const struct bcma_device_id bgmac_bcma_tbl[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
diff --git a/drivers/ssb/driver_chipcommon_pmu.c b/drivers/ssb/driver_chipcommon_pmu.c
index 1173a09..0942841 100644
--- a/drivers/ssb/driver_chipcommon_pmu.c
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -14,7 +14,7 @@
#include <linux/delay.h>
#include <linux/export.h>
#ifdef CONFIG_BCM47XX
-#include <bcm47xx_nvram.h>
+#include <linux/bcm47xx_nvram.h>
#endif
#include "ssb_private.h"
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 7b986f9..f87efef 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -16,7 +16,7 @@
#include <linux/serial_reg.h>
#include <linux/time.h>
#ifdef CONFIG_BCM47XX
-#include <bcm47xx_nvram.h>
+#include <linux/bcm47xx_nvram.h>
#endif
#include "ssb_private.h"
diff --git a/include/linux/bcm47xx_nvram.h b/include/linux/bcm47xx_nvram.h
new file mode 100644
index 0000000..5ed6917
--- /dev/null
+++ b/include/linux/bcm47xx_nvram.h
@@ -0,0 +1,18 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __BCM47XX_NVRAM_H
+#define __BCM47XX_NVRAM_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+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);
+
+#endif /* __BCM47XX_NVRAM_H */
--
1.8.4.5
