From 40d94a3ef026e9e9f27203f744af405fb2e5c82b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 10 Dec 2014 21:50:57 +0000 Subject: [PATCH] bcm53xx: backport NVRAM driver sent upstream MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki SVN-Revision: 43612 --- .../files/drivers/firmware/broadcom/Kconfig | 11 + .../files/drivers/firmware/broadcom/Makefile | 1 + .../drivers/firmware/broadcom/bcm47xx_nvram.c | 232 ++++++++++++++++++ .../files/drivers/misc/bcm47xx-nvram.c | 217 ---------------- .../files/include/linux/bcm47xx_nvram.h | 22 +- ...-nvram-header-file-into-common-space.patch | 154 ------------ .../110-firmware-backport-NVRAM-driver.patch | 119 +++++++++ ...add-new-nvram-driver-with-dt-support.patch | 104 -------- .../112-bcm53xx-sprom-add-sprom-driver.patch | 10 +- ...-nvram-header-file-into-common-space.patch | 154 ------------ .../110-firmware-backport-NVRAM-driver.patch | 119 +++++++++ ...add-new-nvram-driver-with-dt-support.patch | 106 -------- .../112-bcm53xx-sprom-add-sprom-driver.patch | 10 +- 13 files changed, 503 insertions(+), 756 deletions(-) create mode 100644 target/linux/bcm53xx/files/drivers/firmware/broadcom/Kconfig create mode 100644 target/linux/bcm53xx/files/drivers/firmware/broadcom/Makefile create mode 100644 target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c delete mode 100644 target/linux/bcm53xx/files/drivers/misc/bcm47xx-nvram.c delete mode 100644 target/linux/bcm53xx/patches-3.14/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch create mode 100644 target/linux/bcm53xx/patches-3.14/110-firmware-backport-NVRAM-driver.patch delete mode 100644 target/linux/bcm53xx/patches-3.14/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch delete mode 100644 target/linux/bcm53xx/patches-3.18/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch create mode 100644 target/linux/bcm53xx/patches-3.18/110-firmware-backport-NVRAM-driver.patch delete mode 100644 target/linux/bcm53xx/patches-3.18/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch diff --git a/target/linux/bcm53xx/files/drivers/firmware/broadcom/Kconfig b/target/linux/bcm53xx/files/drivers/firmware/broadcom/Kconfig new file mode 100644 index 0000000000..6bed119930 --- /dev/null +++ b/target/linux/bcm53xx/files/drivers/firmware/broadcom/Kconfig @@ -0,0 +1,11 @@ +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. + NVRAM partition contains a text-like data representing name=value + pairs. + This driver provides an easy way to get value of requested parameter. + It simply reads content of NVRAM and parses it. It doesn't control any + hardware part itself. diff --git a/target/linux/bcm53xx/files/drivers/firmware/broadcom/Makefile b/target/linux/bcm53xx/files/drivers/firmware/broadcom/Makefile new file mode 100644 index 0000000000..d0e683583c --- /dev/null +++ b/target/linux/bcm53xx/files/drivers/firmware/broadcom/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx_nvram.o diff --git a/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c b/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c new file mode 100644 index 0000000000..b6e1cc733d --- /dev/null +++ b/target/linux/bcm53xx/files/drivers/firmware/broadcom/bcm47xx_nvram.c @@ -0,0 +1,232 @@ +/* + * BCM947xx nvram variable access + * + * Copyright (C) 2005 Broadcom Corporation + * Copyright (C) 2006 Felix Fietkau + * Copyright (C) 2010-2012 Hauke Mehrtens + * + * 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 +#include +#include +#include +#include +#include + +#define NVRAM_MAGIC 0x48534C46 /* 'FLSH' */ +#define NVRAM_SPACE 0x8000 +#define NVRAM_MAX_GPIO_ENTRIES 32 +#define NVRAM_MAX_GPIO_VALUE_LEN 30 + +#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++ = __raw_readl(src++); + for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4) + *dst++ = readl(src++); + + 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; + + return 0; + } + } +#endif + + return -ENXIO; +} + +int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len) +{ + char *var, *value, *end, *eq; + int data_left, 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] = '\0'; + end[1] = '\0'; + for (; *var; var = value + strlen(value) + 1) { + data_left = end - var; + + eq = strnchr(var, data_left, '='); + 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[] = "gpioXX"; + char buf[NVRAM_MAX_GPIO_VALUE_LEN]; + + /* TODO: Optimize it to don't call getenv so many times */ + for (i = 0; i < NVRAM_MAX_GPIO_ENTRIES; 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/target/linux/bcm53xx/files/drivers/misc/bcm47xx-nvram.c b/target/linux/bcm53xx/files/drivers/misc/bcm47xx-nvram.c deleted file mode 100644 index d1f9d7c6ae..0000000000 --- a/target/linux/bcm53xx/files/drivers/misc/bcm47xx-nvram.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * BCM947xx nvram variable access - * - * Copyright (C) 2005 Broadcom Corporation - * Copyright (C) 2006 Felix Fietkau - * Copyright (C) 2010-2014 Hauke Mehrtens - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include - -#define NVRAM_HEADER 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 */ -}; - -struct bcm47xx_nvram { - size_t nvram_len; - char *nvram_buf; -}; - -static struct bcm47xx_nvram *nvram = NULL; - -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 __iomem *)(end - nvram_sizes[i]); - if (__raw_readl(&header->magic) == NVRAM_HEADER) - return nvram_sizes[i]; - } - - return 0; -} - -/* Probe for NVRAM header */ -static int nvram_find_and_copy(struct device *dev, void __iomem *base, - size_t len, char **nvram_buf, - size_t *nvram_len) -{ - struct nvram_header __iomem *header; - int i; - u32 off; - u32 *dst; - __le32 __iomem *src; - u32 size; - - /* TODO: when nvram is on nand flash check for bad blocks first. */ - off = FLASH_MIN; - while (off <= len) { - /* Windowed flash access */ - size = find_nvram_size(base + off); - if (size) { - header = (struct nvram_header __iomem *) - (base + off - size); - goto found; - } - off += 0x10000; - } - - /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */ - header = (struct nvram_header __iomem *)(base + 4096); - if (__raw_readl(&header->magic) == NVRAM_HEADER) { - size = NVRAM_SPACE; - goto found; - } - - header = (struct nvram_header __iomem *)(base + 1024); - if (__raw_readl(&header->magic) == NVRAM_HEADER) { - size = NVRAM_SPACE; - goto found; - } - - *nvram_buf = NULL; - *nvram_len = 0; - pr_err("no nvram found\n"); - return -ENXIO; - -found: - if (readl(&header->len) > size) - pr_err("The nvram size accoridng to the header seems to be bigger than the partition on flash\n"); - *nvram_len = min_t(u32, readl(&header->len), size); - - *nvram_buf = devm_kzalloc(dev, *nvram_len, GFP_KERNEL); - if (!*nvram_buf) - return -ENOMEM; - - src = (__le32 __iomem *) header; - dst = (u32 *) *nvram_buf; - for (i = 0; i < sizeof(struct nvram_header); i += 4) - *dst++ = __raw_readl(src++); - for (; i < *nvram_len; i += 4) - *dst++ = readl(src++); - - return 0; -} - -int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len) -{ - char *var, *value, *end, *eq; - - if (!name || !nvram || !nvram->nvram_len) - return -EINVAL; - - /* Look for name=value and return value */ - var = nvram->nvram_buf + sizeof(struct nvram_header); - end = nvram->nvram_buf + nvram->nvram_len - 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); - -static int bcm47xx_nvram_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device_node *np = dev->of_node; - int err; - struct resource flash_mem; - void __iomem *mmio; - - /* Alloc */ - nvram = devm_kzalloc(dev, sizeof(*nvram), GFP_KERNEL); - if (!nvram) - return -ENOMEM; - - err = of_address_to_resource(np, 0, &flash_mem); - if (err) - return err; - - mmio = ioremap_nocache(flash_mem.start, resource_size(&flash_mem)); - if (!mmio) - return -ENOMEM; - - err = nvram_find_and_copy(dev, mmio, resource_size(&flash_mem), - &nvram->nvram_buf, &nvram->nvram_len); - if (err) - goto err_unmap_mmio; - -err_unmap_mmio: - iounmap(mmio); - return err; -} - -static const struct of_device_id bcm47xx_nvram_of_match_table[] = { - { .compatible = "brcm,bcm47xx-nvram", }, - {}, -}; -MODULE_DEVICE_TABLE(of, mvebu_pcie_of_match_table); - -static struct platform_driver bcm47xx_nvram_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "bcm47xx-nvram", - .of_match_table = bcm47xx_nvram_of_match_table, - /* driver unloading/unbinding currently not supported */ - .suppress_bind_attrs = true, - }, - .probe = bcm47xx_nvram_probe, -}; -module_platform_driver(bcm47xx_nvram_driver); - -MODULE_AUTHOR("Hauke Mehrtens "); -MODULE_LICENSE("GPLv2"); diff --git a/target/linux/bcm53xx/files/include/linux/bcm47xx_nvram.h b/target/linux/bcm53xx/files/include/linux/bcm47xx_nvram.h index 82890be7c4..0e52a92e84 100644 --- a/target/linux/bcm53xx/files/include/linux/bcm47xx_nvram.h +++ b/target/linux/bcm53xx/files/include/linux/bcm47xx_nvram.h @@ -1,8 +1,4 @@ /* - * Copyright (C) 2005, Broadcom Corporation - * Copyright (C) 2006, Felix Fietkau - * Copyright (C) 2014 Hauke Mehrtens - * * 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 @@ -15,20 +11,24 @@ #include #include -#ifdef CONFIG_BCM47XX +#ifdef CONFIG_BCM47XX_NVRAM +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); #else +static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim) +{ + return -ENOTSUPP; +}; static inline int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len) { - return -ENXIO; -} - + return -ENOTSUPP; +}; static inline int bcm47xx_nvram_gpio_pin(const char *name) { - return -ENXIO; -} + return -ENOTSUPP; +}; #endif + #endif /* __BCM47XX_NVRAM_H */ diff --git a/target/linux/bcm53xx/patches-3.14/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch b/target/linux/bcm53xx/patches-3.14/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch deleted file mode 100644 index 84923e92a6..0000000000 --- a/target/linux/bcm53xx/patches-3.14/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch +++ /dev/null @@ -1,154 +0,0 @@ -From 7063a1583166abe1a9cefed38c2f53a0e14a0005 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 4 May 2014 16:35:42 +0200 -Subject: [PATCH 01/17] MIPS: BCM47XX: move the nvram header file into common - space - -Moving mach-bcm47xx/bcm47xx_nvram.h to include/linux/bcm47xx_nvram.h -makes it possible to reuse this header on the ARM based bcm47xx/bcm53xx -SoCs (e.g. BCM5301X devices). Broadcom uses ARM CPUs in their new SoC -form the bcm47xx and bcm53xx line, but many other things like nvram -stayed the same. - -This is a preparation for adding a new nvram driver, which can be used -by the ARM SoC and the MIPS SoC code. The device drivers accessing -nvram do not have to care about ARM or MIPS SoC version. - -Signed-off-by: Hauke Mehrtens ---- - arch/mips/bcm47xx/board.c | 2 +- - arch/mips/bcm47xx/nvram.c | 2 +- - arch/mips/bcm47xx/setup.c | 2 +- - arch/mips/bcm47xx/sprom.c | 2 +- - arch/mips/bcm47xx/time.c | 2 +- - arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h | 53 ----------------- - drivers/net/ethernet/broadcom/b44.c | 8 +-- - drivers/net/ethernet/broadcom/bgmac.c | 2 +- - drivers/ssb/driver_chipcommon_pmu.c | 6 +- - include/linux/bcm47xx_nvram.h | 66 ++++++++++++++++++++++ - 10 files changed, 74 insertions(+), 71 deletions(-) - delete mode 100644 arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h - create mode 100644 include/linux/bcm47xx_nvram.h - ---- a/arch/mips/bcm47xx/board.c -+++ b/arch/mips/bcm47xx/board.c -@@ -2,7 +2,7 @@ - #include - #include - #include --#include -+#include - - struct bcm47xx_board_type { - const enum bcm47xx_board board; ---- a/arch/mips/bcm47xx/nvram.c -+++ b/arch/mips/bcm47xx/nvram.c -@@ -17,7 +17,7 @@ - #include - #include - #include --#include -+#include - #include - - static char nvram_buf[NVRAM_SPACE]; ---- a/arch/mips/bcm47xx/setup.c -+++ b/arch/mips/bcm47xx/setup.c -@@ -42,7 +42,7 @@ - #include - #include - #include --#include -+#include - #include - - union bcm47xx_bus bcm47xx_bus; ---- a/arch/mips/bcm47xx/sprom.c -+++ b/arch/mips/bcm47xx/sprom.c -@@ -27,7 +27,7 @@ - */ - - #include --#include -+#include - - static void create_key(const char *prefix, const char *postfix, - const char *name, char *buf, int len) ---- a/arch/mips/bcm47xx/time.c -+++ b/arch/mips/bcm47xx/time.c -@@ -27,7 +27,7 @@ - #include - #include - #include --#include -+#include - #include - - void __init plat_time_init(void) ---- a/drivers/net/ethernet/broadcom/b44.c -+++ b/drivers/net/ethernet/broadcom/b44.c -@@ -31,6 +31,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -399,8 +400,6 @@ static void b44_set_flow_ctrl(struct b44 - __b44_set_flow_ctrl(bp, pause_enab); - } - --#ifdef CONFIG_BCM47XX --#include - static void b44_wap54g10_workaround(struct b44 *bp) - { - char buf[20]; -@@ -429,11 +428,6 @@ static void b44_wap54g10_workaround(stru - error: - pr_warning("PHY: cannot reset MII transceiver isolate bit\n"); - } --#else --static inline void b44_wap54g10_workaround(struct b44 *bp) --{ --} --#endif - - static int b44_setup_phy(struct b44 *bp) - { ---- a/drivers/net/ethernet/broadcom/bgmac.c -+++ b/drivers/net/ethernet/broadcom/bgmac.c -@@ -17,7 +17,7 @@ - #include - #include - #include --#include -+#include - - 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), ---- a/drivers/ssb/driver_chipcommon_pmu.c -+++ b/drivers/ssb/driver_chipcommon_pmu.c -@@ -13,9 +13,7 @@ - #include - #include - #include --#ifdef CONFIG_BCM47XX --#include --#endif -+#include - - #include "ssb_private.h" - -@@ -320,11 +318,9 @@ static void ssb_pmu_pll_init(struct ssb_ - u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */ - - if (bus->bustype == SSB_BUSTYPE_SSB) { --#ifdef CONFIG_BCM47XX - char buf[20]; - if (bcm47xx_nvram_getenv("xtalfreq", buf, sizeof(buf)) >= 0) - crystalfreq = simple_strtoul(buf, NULL, 0); --#endif - } - - switch (bus->chip_id) { diff --git a/target/linux/bcm53xx/patches-3.14/110-firmware-backport-NVRAM-driver.patch b/target/linux/bcm53xx/patches-3.14/110-firmware-backport-NVRAM-driver.patch new file mode 100644 index 0000000000..5c460f1ad9 --- /dev/null +++ b/target/linux/bcm53xx/patches-3.14/110-firmware-backport-NVRAM-driver.patch @@ -0,0 +1,119 @@ +From 0509f6dcc46d10ea4bb8c70494dc7ae11bcb3f01 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Wed, 10 Dec 2014 21:14:10 +0100 +Subject: [PATCH] firmware: backport NVRAM driver +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Rafał Miłecki +--- + arch/arm/Kconfig | 2 ++ + drivers/firmware/Kconfig | 1 + + drivers/firmware/Makefile | 1 + + drivers/firmware/broadcom/bcm47xx_nvram.c | 3 ++- + drivers/net/ethernet/broadcom/b44.c | 2 +- + drivers/net/ethernet/broadcom/bgmac.c | 2 +- + drivers/ssb/driver_chipcommon_pmu.c | 2 +- + 7 files changed, 9 insertions(+), 4 deletions(-) + +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 4733d32..ab18030 100644 +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -2286,6 +2286,8 @@ source "net/Kconfig" + + source "drivers/Kconfig" + ++source "drivers/firmware/Kconfig" ++ + source "fs/Kconfig" + + source "arch/arm/Kconfig.debug" +diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig +index 4198388..ffbc9e4 100644 +--- a/drivers/firmware/Kconfig ++++ b/drivers/firmware/Kconfig +@@ -132,6 +132,7 @@ config ISCSI_IBFT + detect iSCSI boot parameters dynamically during system boot, say Y. + Otherwise, say N. + ++source "drivers/firmware/broadcom/Kconfig" + source "drivers/firmware/google/Kconfig" + source "drivers/firmware/efi/Kconfig" + +diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile +index 5373dc5..e251f2b 100644 +--- a/drivers/firmware/Makefile ++++ b/drivers/firmware/Makefile +@@ -12,6 +12,7 @@ obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o + obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o + obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o + ++obj-y += broadcom/ + obj-$(CONFIG_GOOGLE_FIRMWARE) += google/ + obj-$(CONFIG_EFI) += efi/ + obj-$(CONFIG_UEFI_CPER) += efi/ +diff --git a/drivers/firmware/broadcom/bcm47xx_nvram.c b/drivers/firmware/broadcom/bcm47xx_nvram.c +index b6e1cc7..8ca7358 100644 +--- a/drivers/firmware/broadcom/bcm47xx_nvram.c ++++ b/drivers/firmware/broadcom/bcm47xx_nvram.c +@@ -11,6 +11,7 @@ + * option) any later version. + */ + ++#include + #include + #include + #include +@@ -34,7 +35,7 @@ struct nvram_header { + }; + + static char nvram_buf[NVRAM_SPACE]; +-static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000}; ++static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000, 0x160000}; + + static u32 find_nvram_size(void __iomem *end) + { +diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c +index 8a7bf7d..bf3bcd6 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 ++#include + 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 34c7bc8..943707f 100644 +--- a/drivers/net/ethernet/broadcom/bgmac.c ++++ b/drivers/net/ethernet/broadcom/bgmac.c +@@ -17,7 +17,7 @@ + #include + #include + #include +-#include ++#include + + 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 + #include + #ifdef CONFIG_BCM47XX +-#include ++#include + #endif + + #include "ssb_private.h" +-- +1.8.4.5 + diff --git a/target/linux/bcm53xx/patches-3.14/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch b/target/linux/bcm53xx/patches-3.14/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch deleted file mode 100644 index c4c73394f6..0000000000 --- a/target/linux/bcm53xx/patches-3.14/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch +++ /dev/null @@ -1,104 +0,0 @@ -From 71a6bff8656a1713615ffdd9139a83d65ba46c6d Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sat, 3 May 2014 22:54:59 +0200 -Subject: [PATCH 02/17] bcm47xx-nvram: add new broadcom nvram driver with dt - support - -This adds a new driver which searches at a given memory range for a -nvram like it is used on the bcm47xx and bcm53xx SoCs with ARM and MIPS -CPUs. This driver provides acces to this nvram to other device in the -device tree. You have to specify the memory ranges where the content of -the flash chip is memory mapped and this driver will search there for -some nvram and parse it. Other drivers can use this driver to access the -device nvram. The nvram is used to store board configurations like the -mac addresses, the switch configuration and the calibration data for -the wifi devices. - -This was copied from arch/mips/bcm47xx/nvram.c and modified to interact -with device tree. My plan is to make the MIPS bcm47xx also use this new -driver some time later. - -Signed-off-by: Hauke Mehrtens ---- - .../devicetree/bindings/misc/bcm47xx-nvram.txt | 19 ++ - arch/mips/bcm47xx/board.c | 40 ++-- - arch/mips/bcm47xx/nvram.c | 7 +- - arch/mips/bcm47xx/setup.c | 4 +- - arch/mips/bcm47xx/sprom.c | 4 +- - arch/mips/bcm47xx/time.c | 2 +- - drivers/misc/Kconfig | 5 + - drivers/misc/Makefile | 1 + - drivers/misc/bcm47xx-nvram.c | 215 +++++++++++++++++++++ - drivers/net/ethernet/broadcom/b44.c | 2 +- - drivers/net/ethernet/broadcom/bgmac.c | 5 +- - drivers/ssb/driver_chipcommon_pmu.c | 3 +- - include/linux/bcm47xx_nvram.h | 17 +- - 13 files changed, 286 insertions(+), 38 deletions(-) - create mode 100644 Documentation/devicetree/bindings/misc/bcm47xx-nvram.txt - create mode 100644 drivers/misc/bcm47xx-nvram.c - ---- /dev/null -+++ b/Documentation/devicetree/bindings/misc/bcm47xx-nvram.txt -@@ -0,0 +1,19 @@ -+Broadcom bcm47xx/bcm53xx nvram access driver -+ -+This driver provides access to the nvram for other drivers. -+ -+Required properties: -+ -+- compatible : brcm,bcm47xx-nvram -+ -+- reg : iomem address range -+ -+On NorthStar ARM SoCs the NAND flash is available at 0x1c000000 and the -+NOR flash is at 0x1e000000 -+ -+Example: -+ -+nvram0: nvram@0 { -+ compatible = "brcm,bcm47xx-nvram"; -+ reg = <0x1c000000 0x01000000>; -+}; ---- a/drivers/misc/Kconfig -+++ b/drivers/misc/Kconfig -@@ -515,6 +515,11 @@ config SRAM - the genalloc API. It is supposed to be used for small on-chip SRAM - areas found on many SoCs. - -+config BCM47XX_NVRAM -+ tristate "BCM47XX nvram driver" -+ help -+ This adds support for the brcm47xx nvram driver. -+ - source "drivers/misc/c2port/Kconfig" - source "drivers/misc/eeprom/Kconfig" - source "drivers/misc/cb710/Kconfig" ---- a/drivers/misc/Makefile -+++ b/drivers/misc/Makefile -@@ -54,3 +54,4 @@ obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lat - obj-$(CONFIG_SRAM) += sram.o - obj-y += mic/ - obj-$(CONFIG_GENWQE) += genwqe/ -+obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx-nvram.o ---- a/include/linux/bcm47xx_nvram.h -+++ b/include/linux/bcm47xx_nvram.h -@@ -15,7 +15,7 @@ - #include - #include - --#ifdef CONFIG_BCM47XX -+#if defined(CONFIG_BCM47XX) || defined(CONFIG_BCM47XX_NVRAM) - int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len); - - int bcm47xx_nvram_gpio_pin(const char *name); ---- a/drivers/misc/bcm47xx-nvram.c -+++ b/drivers/misc/bcm47xx-nvram.c -@@ -28,7 +28,7 @@ - - struct nvram_header { - u32 magic; -- u32 len; -+ __le32 len; - u32 crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */ - u32 config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */ - u32 config_ncdl; /* ncdl values for memc */ diff --git a/target/linux/bcm53xx/patches-3.14/112-bcm53xx-sprom-add-sprom-driver.patch b/target/linux/bcm53xx/patches-3.14/112-bcm53xx-sprom-add-sprom-driver.patch index 739d8cf90d..e316a661ea 100644 --- a/target/linux/bcm53xx/patches-3.14/112-bcm53xx-sprom-add-sprom-driver.patch +++ b/target/linux/bcm53xx/patches-3.14/112-bcm53xx-sprom-add-sprom-driver.patch @@ -42,9 +42,9 @@ Signed-off-by: Hauke Mehrtens +}; --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig -@@ -520,6 +520,17 @@ config BCM47XX_NVRAM - help - This adds support for the brcm47xx nvram driver. +@@ -515,6 +515,17 @@ config SRAM + the genalloc API. It is supposed to be used for small on-chip SRAM + areas found on many SoCs. +config BCM47XX_SPROM + tristate "BCM47XX sprom driver" @@ -62,8 +62,8 @@ Signed-off-by: Hauke Mehrtens source "drivers/misc/cb710/Kconfig" --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile -@@ -55,3 +55,4 @@ obj-$(CONFIG_SRAM) += sram.o +@@ -54,3 +54,4 @@ obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lat + obj-$(CONFIG_SRAM) += sram.o obj-y += mic/ obj-$(CONFIG_GENWQE) += genwqe/ - obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx-nvram.o +obj-$(CONFIG_BCM47XX_SPROM) += bcm47xx-sprom.o diff --git a/target/linux/bcm53xx/patches-3.18/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch b/target/linux/bcm53xx/patches-3.18/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch deleted file mode 100644 index 79178cf5a7..0000000000 --- a/target/linux/bcm53xx/patches-3.18/110-bcm47xx-move-the-nvram-header-file-into-common-space.patch +++ /dev/null @@ -1,154 +0,0 @@ -From 7063a1583166abe1a9cefed38c2f53a0e14a0005 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 4 May 2014 16:35:42 +0200 -Subject: [PATCH 01/17] MIPS: BCM47XX: move the nvram header file into common - space - -Moving mach-bcm47xx/bcm47xx_nvram.h to include/linux/bcm47xx_nvram.h -makes it possible to reuse this header on the ARM based bcm47xx/bcm53xx -SoCs (e.g. BCM5301X devices). Broadcom uses ARM CPUs in their new SoC -form the bcm47xx and bcm53xx line, but many other things like nvram -stayed the same. - -This is a preparation for adding a new nvram driver, which can be used -by the ARM SoC and the MIPS SoC code. The device drivers accessing -nvram do not have to care about ARM or MIPS SoC version. - -Signed-off-by: Hauke Mehrtens ---- - arch/mips/bcm47xx/board.c | 2 +- - arch/mips/bcm47xx/nvram.c | 2 +- - arch/mips/bcm47xx/setup.c | 2 +- - arch/mips/bcm47xx/sprom.c | 2 +- - arch/mips/bcm47xx/time.c | 2 +- - arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h | 53 ----------------- - drivers/net/ethernet/broadcom/b44.c | 8 +-- - drivers/net/ethernet/broadcom/bgmac.c | 2 +- - drivers/ssb/driver_chipcommon_pmu.c | 6 +- - include/linux/bcm47xx_nvram.h | 66 ++++++++++++++++++++++ - 10 files changed, 74 insertions(+), 71 deletions(-) - delete mode 100644 arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h - create mode 100644 include/linux/bcm47xx_nvram.h - ---- a/arch/mips/bcm47xx/board.c -+++ b/arch/mips/bcm47xx/board.c -@@ -2,7 +2,7 @@ - #include - #include - #include --#include -+#include - - struct bcm47xx_board_type { - const enum bcm47xx_board board; ---- a/arch/mips/bcm47xx/nvram.c -+++ b/arch/mips/bcm47xx/nvram.c -@@ -17,7 +17,7 @@ - #include - #include - #include --#include -+#include - #include - - static char nvram_buf[NVRAM_SPACE]; ---- a/arch/mips/bcm47xx/setup.c -+++ b/arch/mips/bcm47xx/setup.c -@@ -42,7 +42,7 @@ - #include - #include - #include --#include -+#include - #include - - union bcm47xx_bus bcm47xx_bus; ---- a/arch/mips/bcm47xx/sprom.c -+++ b/arch/mips/bcm47xx/sprom.c -@@ -27,7 +27,7 @@ - */ - - #include --#include -+#include - #include - #include - ---- a/arch/mips/bcm47xx/time.c -+++ b/arch/mips/bcm47xx/time.c -@@ -27,7 +27,7 @@ - #include - #include - #include --#include -+#include - #include - - void __init plat_time_init(void) ---- a/drivers/net/ethernet/broadcom/b44.c -+++ b/drivers/net/ethernet/broadcom/b44.c -@@ -31,6 +31,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -399,8 +400,6 @@ static void b44_set_flow_ctrl(struct b44 - __b44_set_flow_ctrl(bp, pause_enab); - } - --#ifdef CONFIG_BCM47XX --#include - static void b44_wap54g10_workaround(struct b44 *bp) - { - char buf[20]; -@@ -429,11 +428,6 @@ static void b44_wap54g10_workaround(stru - error: - pr_warn("PHY: cannot reset MII transceiver isolate bit\n"); - } --#else --static inline void b44_wap54g10_workaround(struct b44 *bp) --{ --} --#endif - - static int b44_setup_phy(struct b44 *bp) - { ---- a/drivers/net/ethernet/broadcom/bgmac.c -+++ b/drivers/net/ethernet/broadcom/bgmac.c -@@ -17,7 +17,7 @@ - #include - #include - #include --#include -+#include - - 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), ---- a/drivers/ssb/driver_chipcommon_pmu.c -+++ b/drivers/ssb/driver_chipcommon_pmu.c -@@ -13,9 +13,7 @@ - #include - #include - #include --#ifdef CONFIG_BCM47XX --#include --#endif -+#include - - #include "ssb_private.h" - -@@ -320,11 +318,9 @@ static void ssb_pmu_pll_init(struct ssb_ - u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */ - - if (bus->bustype == SSB_BUSTYPE_SSB) { --#ifdef CONFIG_BCM47XX - char buf[20]; - if (bcm47xx_nvram_getenv("xtalfreq", buf, sizeof(buf)) >= 0) - crystalfreq = simple_strtoul(buf, NULL, 0); --#endif - } - - switch (bus->chip_id) { diff --git a/target/linux/bcm53xx/patches-3.18/110-firmware-backport-NVRAM-driver.patch b/target/linux/bcm53xx/patches-3.18/110-firmware-backport-NVRAM-driver.patch new file mode 100644 index 0000000000..5c460f1ad9 --- /dev/null +++ b/target/linux/bcm53xx/patches-3.18/110-firmware-backport-NVRAM-driver.patch @@ -0,0 +1,119 @@ +From 0509f6dcc46d10ea4bb8c70494dc7ae11bcb3f01 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Wed, 10 Dec 2014 21:14:10 +0100 +Subject: [PATCH] firmware: backport NVRAM driver +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Rafał Miłecki +--- + arch/arm/Kconfig | 2 ++ + drivers/firmware/Kconfig | 1 + + drivers/firmware/Makefile | 1 + + drivers/firmware/broadcom/bcm47xx_nvram.c | 3 ++- + drivers/net/ethernet/broadcom/b44.c | 2 +- + drivers/net/ethernet/broadcom/bgmac.c | 2 +- + drivers/ssb/driver_chipcommon_pmu.c | 2 +- + 7 files changed, 9 insertions(+), 4 deletions(-) + +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 4733d32..ab18030 100644 +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -2286,6 +2286,8 @@ source "net/Kconfig" + + source "drivers/Kconfig" + ++source "drivers/firmware/Kconfig" ++ + source "fs/Kconfig" + + source "arch/arm/Kconfig.debug" +diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig +index 4198388..ffbc9e4 100644 +--- a/drivers/firmware/Kconfig ++++ b/drivers/firmware/Kconfig +@@ -132,6 +132,7 @@ config ISCSI_IBFT + detect iSCSI boot parameters dynamically during system boot, say Y. + Otherwise, say N. + ++source "drivers/firmware/broadcom/Kconfig" + source "drivers/firmware/google/Kconfig" + source "drivers/firmware/efi/Kconfig" + +diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile +index 5373dc5..e251f2b 100644 +--- a/drivers/firmware/Makefile ++++ b/drivers/firmware/Makefile +@@ -12,6 +12,7 @@ obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o + obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o + obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o + ++obj-y += broadcom/ + obj-$(CONFIG_GOOGLE_FIRMWARE) += google/ + obj-$(CONFIG_EFI) += efi/ + obj-$(CONFIG_UEFI_CPER) += efi/ +diff --git a/drivers/firmware/broadcom/bcm47xx_nvram.c b/drivers/firmware/broadcom/bcm47xx_nvram.c +index b6e1cc7..8ca7358 100644 +--- a/drivers/firmware/broadcom/bcm47xx_nvram.c ++++ b/drivers/firmware/broadcom/bcm47xx_nvram.c +@@ -11,6 +11,7 @@ + * option) any later version. + */ + ++#include + #include + #include + #include +@@ -34,7 +35,7 @@ struct nvram_header { + }; + + static char nvram_buf[NVRAM_SPACE]; +-static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000}; ++static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000, 0x160000}; + + static u32 find_nvram_size(void __iomem *end) + { +diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c +index 8a7bf7d..bf3bcd6 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 ++#include + 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 34c7bc8..943707f 100644 +--- a/drivers/net/ethernet/broadcom/bgmac.c ++++ b/drivers/net/ethernet/broadcom/bgmac.c +@@ -17,7 +17,7 @@ + #include + #include + #include +-#include ++#include + + 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 + #include + #ifdef CONFIG_BCM47XX +-#include ++#include + #endif + + #include "ssb_private.h" +-- +1.8.4.5 + diff --git a/target/linux/bcm53xx/patches-3.18/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch b/target/linux/bcm53xx/patches-3.18/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch deleted file mode 100644 index 14fb5b48aa..0000000000 --- a/target/linux/bcm53xx/patches-3.18/111-bcm47xx-nvram-add-new-nvram-driver-with-dt-support.patch +++ /dev/null @@ -1,106 +0,0 @@ -From 71a6bff8656a1713615ffdd9139a83d65ba46c6d Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sat, 3 May 2014 22:54:59 +0200 -Subject: [PATCH 02/17] bcm47xx-nvram: add new broadcom nvram driver with dt - support - -This adds a new driver which searches at a given memory range for a -nvram like it is used on the bcm47xx and bcm53xx SoCs with ARM and MIPS -CPUs. This driver provides acces to this nvram to other device in the -device tree. You have to specify the memory ranges where the content of -the flash chip is memory mapped and this driver will search there for -some nvram and parse it. Other drivers can use this driver to access the -device nvram. The nvram is used to store board configurations like the -mac addresses, the switch configuration and the calibration data for -the wifi devices. - -This was copied from arch/mips/bcm47xx/nvram.c and modified to interact -with device tree. My plan is to make the MIPS bcm47xx also use this new -driver some time later. - -Signed-off-by: Hauke Mehrtens ---- - .../devicetree/bindings/misc/bcm47xx-nvram.txt | 19 ++ - arch/mips/bcm47xx/board.c | 40 ++-- - arch/mips/bcm47xx/nvram.c | 7 +- - arch/mips/bcm47xx/setup.c | 4 +- - arch/mips/bcm47xx/sprom.c | 4 +- - arch/mips/bcm47xx/time.c | 2 +- - drivers/misc/Kconfig | 5 + - drivers/misc/Makefile | 1 + - drivers/misc/bcm47xx-nvram.c | 215 +++++++++++++++++++++ - drivers/net/ethernet/broadcom/b44.c | 2 +- - drivers/net/ethernet/broadcom/bgmac.c | 5 +- - drivers/ssb/driver_chipcommon_pmu.c | 3 +- - include/linux/bcm47xx_nvram.h | 17 +- - 13 files changed, 286 insertions(+), 38 deletions(-) - create mode 100644 Documentation/devicetree/bindings/misc/bcm47xx-nvram.txt - create mode 100644 drivers/misc/bcm47xx-nvram.c - ---- /dev/null -+++ b/Documentation/devicetree/bindings/misc/bcm47xx-nvram.txt -@@ -0,0 +1,19 @@ -+Broadcom bcm47xx/bcm53xx nvram access driver -+ -+This driver provides access to the nvram for other drivers. -+ -+Required properties: -+ -+- compatible : brcm,bcm47xx-nvram -+ -+- reg : iomem address range -+ -+On NorthStar ARM SoCs the NAND flash is available at 0x1c000000 and the -+NOR flash is at 0x1e000000 -+ -+Example: -+ -+nvram0: nvram@0 { -+ compatible = "brcm,bcm47xx-nvram"; -+ reg = <0x1c000000 0x01000000>; -+}; ---- a/drivers/misc/Kconfig -+++ b/drivers/misc/Kconfig -@@ -515,6 +515,11 @@ config VEXPRESS_SYSCFG - bus. System Configuration interface is one of the possible means - of generating transactions on this bus. - -+config BCM47XX_NVRAM -+ tristate "BCM47XX nvram driver" -+ help -+ This adds support for the brcm47xx nvram driver. -+ - source "drivers/misc/c2port/Kconfig" - source "drivers/misc/eeprom/Kconfig" - source "drivers/misc/cb710/Kconfig" ---- a/drivers/misc/Makefile -+++ b/drivers/misc/Makefile -@@ -56,3 +56,4 @@ obj-$(CONFIG_GENWQE) += genwqe/ - obj-$(CONFIG_ECHO) += echo/ - obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o - obj-$(CONFIG_CXL_BASE) += cxl/ -+obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx-nvram.o ---- a/include/linux/bcm47xx_nvram.h -+++ b/include/linux/bcm47xx_nvram.h -@@ -14,8 +14,8 @@ - - #include - #include -- --#ifdef CONFIG_BCM47XX -+ -+#if defined(CONFIG_BCM47XX) || defined(CONFIG_BCM47XX_NVRAM) - int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len); - - int bcm47xx_nvram_gpio_pin(const char *name); ---- a/drivers/misc/bcm47xx-nvram.c -+++ b/drivers/misc/bcm47xx-nvram.c -@@ -28,7 +28,7 @@ - - struct nvram_header { - u32 magic; -- u32 len; -+ __le32 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 */ diff --git a/target/linux/bcm53xx/patches-3.18/112-bcm53xx-sprom-add-sprom-driver.patch b/target/linux/bcm53xx/patches-3.18/112-bcm53xx-sprom-add-sprom-driver.patch index 8ad6ca4682..b914fd995f 100644 --- a/target/linux/bcm53xx/patches-3.18/112-bcm53xx-sprom-add-sprom-driver.patch +++ b/target/linux/bcm53xx/patches-3.18/112-bcm53xx-sprom-add-sprom-driver.patch @@ -42,9 +42,9 @@ Signed-off-by: Hauke Mehrtens +}; --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig -@@ -520,6 +520,17 @@ config BCM47XX_NVRAM - help - This adds support for the brcm47xx nvram driver. +@@ -515,6 +515,17 @@ config VEXPRESS_SYSCFG + bus. System Configuration interface is one of the possible means + of generating transactions on this bus. +config BCM47XX_SPROM + tristate "BCM47XX sprom driver" @@ -62,8 +62,8 @@ Signed-off-by: Hauke Mehrtens source "drivers/misc/cb710/Kconfig" --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile -@@ -57,3 +57,4 @@ obj-$(CONFIG_ECHO) += echo/ +@@ -56,3 +56,4 @@ obj-$(CONFIG_GENWQE) += genwqe/ + obj-$(CONFIG_ECHO) += echo/ obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o obj-$(CONFIG_CXL_BASE) += cxl/ - obj-$(CONFIG_BCM47XX_NVRAM) += bcm47xx-nvram.o +obj-$(CONFIG_BCM47XX_SPROM) += bcm47xx-sprom.o -- 2.25.1