diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.7/004-MIPS-BCM63XX-move-nvram-functions-into-their-own-fil.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.7/004-MIPS-BCM63XX-move-nvram-functions-into-their-own-fil.patch | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.7/004-MIPS-BCM63XX-move-nvram-functions-into-their-own-fil.patch b/target/linux/brcm63xx/patches-3.7/004-MIPS-BCM63XX-move-nvram-functions-into-their-own-fil.patch new file mode 100644 index 0000000000..4167e57433 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.7/004-MIPS-BCM63XX-move-nvram-functions-into-their-own-fil.patch @@ -0,0 +1,344 @@ +From a4304adb62af528957ed8858c9eb4f2630abe6d7 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jonas.gorski@gmail.com> +Date: Sat, 12 May 2012 22:51:08 +0200 +Subject: [PATCH] MIPS: BCM63XX: move nvram functions into their own file + +Refactor nvram related functions into its own unit for easier expansion +and exposure of the values to other drivers. + +Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> +--- + +This patch depends on the previous reset helper patch series or the +Makefile change needs to be merged manually. It has no real functional +dependencies. + + arch/mips/bcm63xx/Makefile | 7 +- + arch/mips/bcm63xx/boards/board_bcm963xx.c | 71 ++----------- + arch/mips/bcm63xx/nvram.c | 104 ++++++++++++++++++++ + arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h | 35 +++++++ + .../mips/include/asm/mach-bcm63xx/board_bcm963xx.h | 17 --- + 5 files changed, 154 insertions(+), 80 deletions(-) + create mode 100644 arch/mips/bcm63xx/nvram.c + create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h + +--- a/arch/mips/bcm63xx/Makefile ++++ b/arch/mips/bcm63xx/Makefile +@@ -1,6 +1,7 @@ +-obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o reset.o setup.o \ +- timer.o dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o \ +- dev-rng.o dev-spi.o dev-uart.o dev-wdt.o dev-usb-usbd.o ++obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \ ++ setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \ ++ dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \ ++ dev-usb-usbd.o + obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + + obj-y += boards/ +--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c ++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c +@@ -18,6 +18,7 @@ + #include <bcm63xx_dev_uart.h> + #include <bcm63xx_regs.h> + #include <bcm63xx_io.h> ++#include <bcm63xx_nvram.h> + #include <bcm63xx_dev_pci.h> + #include <bcm63xx_dev_enet.h> + #include <bcm63xx_dev_dsp.h> +@@ -29,8 +30,6 @@ + + #define PFX "board_bcm963xx: " + +-static struct bcm963xx_nvram nvram; +-static unsigned int mac_addr_used; + static struct board_info board; + + /* +@@ -716,50 +715,14 @@ const char *board_get_name(void) + } + + /* +- * register & return a new board mac address +- */ +-static int board_get_mac_address(u8 *mac) +-{ +- u8 *oui; +- int count; +- +- if (mac_addr_used >= nvram.mac_addr_count) { +- printk(KERN_ERR PFX "not enough mac address\n"); +- return -ENODEV; +- } +- +- memcpy(mac, nvram.mac_addr_base, ETH_ALEN); +- oui = mac + ETH_ALEN/2 - 1; +- count = mac_addr_used; +- +- while (count--) { +- u8 *p = mac + ETH_ALEN - 1; +- +- do { +- (*p)++; +- if (*p != 0) +- break; +- p--; +- } while (p != oui); +- +- if (p == oui) { +- printk(KERN_ERR PFX "unable to fetch mac address\n"); +- return -ENODEV; +- } +- } +- +- mac_addr_used++; +- return 0; +-} +- +-/* + * early init callback, read nvram data from flash and checksum it + */ + void __init board_prom_init(void) + { +- unsigned int check_len, i; +- u8 *boot_addr, *cfe, *p; ++ unsigned int i; ++ u8 *boot_addr, *cfe; + char cfe_version[32]; ++ char *board_name; + u32 val; + + /* read base address of boot chip select (0) +@@ -782,27 +745,15 @@ void __init board_prom_init(void) + strcpy(cfe_version, "unknown"); + printk(KERN_INFO PFX "CFE version: %s\n", cfe_version); + +- /* extract nvram data */ +- memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram)); +- +- /* check checksum before using data */ +- if (nvram.version <= 4) +- check_len = offsetof(struct bcm963xx_nvram, checksum_old); +- else +- check_len = sizeof(nvram); +- val = 0; +- p = (u8 *)&nvram; +- while (check_len--) +- val += *p; +- if (val) { ++ if (bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET)) { + printk(KERN_ERR PFX "invalid nvram checksum\n"); + return; + } + ++ board_name = bcm63xx_nvram_get_name(); + /* find board by name */ + for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) { +- if (strncmp(nvram.name, bcm963xx_boards[i]->name, +- sizeof(nvram.name))) ++ if (strncmp(board_name, bcm963xx_boards[i]->name, 16)) + continue; + /* copy, board desc array is marked initdata */ + memcpy(&board, bcm963xx_boards[i], sizeof(board)); +@@ -812,7 +763,7 @@ void __init board_prom_init(void) + /* bail out if board is not found, will complain later */ + if (!board.name[0]) { + char name[17]; +- memcpy(name, nvram.name, 16); ++ memcpy(name, board_name, 16); + name[16] = 0; + printk(KERN_ERR PFX "unknown bcm963xx board: %s\n", + name); +@@ -890,11 +841,11 @@ int __init board_register_devices(void) + bcm63xx_pcmcia_register(); + + if (board.has_enet0 && +- !board_get_mac_address(board.enet0.mac_addr)) ++ !bcm63xx_nvram_get_mac_address(board.enet0.mac_addr)) + bcm63xx_enet_register(0, &board.enet0); + + if (board.has_enet1 && +- !board_get_mac_address(board.enet1.mac_addr)) ++ !bcm63xx_nvram_get_mac_address(board.enet1.mac_addr)) + bcm63xx_enet_register(1, &board.enet1); + + if (board.has_usbd) +@@ -907,7 +858,7 @@ int __init board_register_devices(void) + * do this after registering enet devices + */ + #ifdef CONFIG_SSB_PCIHOST +- if (!board_get_mac_address(bcm63xx_sprom.il0mac)) { ++ if (!bcm63xx_nvram_get_mac_address(bcm63xx_sprom.il0mac)) { + memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN); + memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN); + if (ssb_arch_register_fallback_sprom( +--- /dev/null ++++ b/arch/mips/bcm63xx/nvram.c +@@ -0,0 +1,104 @@ ++/* ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file "COPYING" in the main directory of this archive ++ * for more details. ++ * ++ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> ++ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org> ++ * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com> ++ */ ++ ++#define pr_fmt(fmt) "bcm63xx_nvram: " fmt ++ ++#include <linux/init.h> ++#include <linux/export.h> ++#include <linux/kernel.h> ++#include <linux/if_ether.h> ++ ++#include <bcm63xx_nvram.h> ++ ++/* ++ * nvram structure ++ */ ++struct bcm963xx_nvram { ++ u32 version; ++ u8 reserved1[256]; ++ u8 name[16]; ++ u32 main_tp_number; ++ u32 psi_size; ++ u32 mac_addr_count; ++ u8 mac_addr_base[ETH_ALEN]; ++ u8 reserved2[2]; ++ u32 checksum_old; ++ u8 reserved3[720]; ++ u32 checksum_high; ++}; ++ ++static struct bcm963xx_nvram nvram; ++static int mac_addr_used; ++ ++int __init bcm63xx_nvram_init(void *addr) ++{ ++ unsigned int check_len; ++ u8 *p; ++ u32 val; ++ ++ /* extract nvram data */ ++ memcpy(&nvram, addr, sizeof(nvram)); ++ ++ /* check checksum before using data */ ++ if (nvram.version <= 4) ++ check_len = offsetof(struct bcm963xx_nvram, checksum_old); ++ else ++ check_len = sizeof(nvram); ++ val = 0; ++ p = (u8 *)&nvram; ++ ++ while (check_len--) ++ val += *p; ++ if (val) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++u8 *bcm63xx_nvram_get_name(void) ++{ ++ return nvram.name; ++} ++EXPORT_SYMBOL(bcm63xx_nvram_get_name); ++ ++int bcm63xx_nvram_get_mac_address(u8 *mac) ++{ ++ u8 *oui; ++ int count; ++ ++ if (mac_addr_used >= nvram.mac_addr_count) { ++ pr_err("not enough mac addresses\n"); ++ return -ENODEV; ++ } ++ ++ memcpy(mac, nvram.mac_addr_base, ETH_ALEN); ++ oui = mac + ETH_ALEN/2 - 1; ++ count = mac_addr_used; ++ ++ while (count--) { ++ u8 *p = mac + ETH_ALEN - 1; ++ ++ do { ++ (*p)++; ++ if (*p != 0) ++ break; ++ p--; ++ } while (p != oui); ++ ++ if (p == oui) { ++ pr_err("unable to fetch mac address\n"); ++ return -ENODEV; ++ } ++ } ++ ++ mac_addr_used++; ++ return 0; ++} ++EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address); +--- /dev/null ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h +@@ -0,0 +1,35 @@ ++#ifndef BCM63XX_NVRAM_H ++#define BCM63XX_NVRAM_H ++ ++#include <linux/types.h> ++ ++/** ++ * bcm63xx_nvram_init() - initializes nvram ++ * @nvram: address of the nvram data ++ * ++ * Initialized the local nvram copy from the target address and checks ++ * its checksum. ++ * ++ * Returns 0 on success. ++ */ ++int __init bcm63xx_nvram_init(void *nvram); ++ ++/** ++ * bcm63xx_nvram_get_name() - returns the board name according to nvram ++ * ++ * Returns the board name field from nvram. Note that it might not be ++ * null terminated if it is exactly 16 bytes long. ++ */ ++u8 *bcm63xx_nvram_get_name(void); ++ ++/** ++ * bcm63xx_nvram_get_mac_address() - register & return a new mac address ++ * @mac: pointer to array for allocated mac ++ * ++ * Registers and returns a mac address from the allocated macs from nvram. ++ * ++ * Returns 0 on success. ++ */ ++int bcm63xx_nvram_get_mac_address(u8 *mac); ++ ++#endif /* BCM63XX_NVRAM_H */ +--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h ++++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h +@@ -15,23 +15,6 @@ + #define BCM963XX_NVRAM_OFFSET 0x580 + + /* +- * nvram structure +- */ +-struct bcm963xx_nvram { +- u32 version; +- u8 reserved1[256]; +- u8 name[16]; +- u32 main_tp_number; +- u32 psi_size; +- u32 mac_addr_count; +- u8 mac_addr_base[6]; +- u8 reserved2[2]; +- u32 checksum_old; +- u8 reserved3[720]; +- u32 checksum_high; +-}; +- +-/* + * board definition + */ + struct board_info { |