diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.34/001-backport.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-2.6.34/001-backport.patch | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.34/001-backport.patch b/target/linux/brcm47xx/patches-2.6.34/001-backport.patch deleted file mode 100644 index f27f3d19d0..0000000000 --- a/target/linux/brcm47xx/patches-2.6.34/001-backport.patch +++ /dev/null @@ -1,254 +0,0 @@ -commit 121915c4ee0812a14bc8d752bc210d0238d755c1 -Author: Waldemar Brodkorb <mips@waldemar-brodkorb.de> -Date: Tue Jun 8 19:06:01 2010 +0200 - - MIPS: BCM47xx: Add NVRAM support devices - - When trying to netboot a Linksys WRT54GS WLAN router, the bootup fails, - because of following error message: - - ... - [ 0.424000] b44: b44.c:v2.0 - [ 0.424000] b44: Invalid MAC address found in EEPROM - [ 0.432000] b44 ssb0:1: Problem fetching invariants of chip,aborting - [ 0.436000] b44: probe of ssb0:1 failed with error -22 - ... - - The router uses a CFE bootloader, but most of the needed environment - variables for network card initialization, are not available from CFE - via printenv and even though not via cfe_getenv(). - The required environment variables are saved in a special partition - in flash memory. The attached patch implement nvram_getenv and enables - bootup via NFS root on my router. - - Most of the patch is extracted from the OpenWrt subversion repository and - stripped down and cleaned up to just fix this issue. - - [Ralf: sorted out header file inclusions. Lots of unneded headers and such - that should have been included.] - - Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> - Reviewed-by: Phil Sutter <phil@nwl.cc> - To: linux-mips@linux-mips.org - Cc: Hauke Mehrtens <hauke@hauke-m.de> - Patchwork: http://patchwork.linux-mips.org/patch/1359/ - Signed-off-by: Ralf Baechle <ralf@linux-mips.org> - ---- a/arch/mips/bcm47xx/Makefile -+++ b/arch/mips/bcm47xx/Makefile -@@ -3,4 +3,4 @@ - # under Linux. - # - --obj-y := gpio.o irq.o prom.o serial.o setup.o time.o wgt634u.o -+obj-y := gpio.o irq.o nvram.o prom.o serial.o setup.o time.o wgt634u.o ---- /dev/null -+++ b/arch/mips/bcm47xx/nvram.c -@@ -0,0 +1,94 @@ -+/* -+ * BCM947xx nvram variable access -+ * -+ * Copyright (C) 2005 Broadcom Corporation -+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> -+ * -+ * 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/init.h> -+#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 <asm/mach-bcm47xx/nvram.h> -+#include <asm/mach-bcm47xx/bcm47xx.h> -+ -+static char nvram_buf[NVRAM_SPACE]; -+ -+/* Probe for NVRAM header */ -+static void __init early_nvram_init(void) -+{ -+ struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore; -+ struct nvram_header *header; -+ int i; -+ u32 base, lim, off; -+ u32 *src, *dst; -+ -+ base = mcore->flash_window; -+ lim = mcore->flash_window_size; -+ -+ off = FLASH_MIN; -+ while (off <= lim) { -+ /* Windowed flash access */ -+ header = (struct nvram_header *) -+ KSEG1ADDR(base + off - NVRAM_SPACE); -+ if (header->magic == NVRAM_HEADER) -+ goto found; -+ off <<= 1; -+ } -+ -+ /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */ -+ header = (struct nvram_header *) KSEG1ADDR(base + 4096); -+ if (header->magic == NVRAM_HEADER) -+ goto found; -+ -+ header = (struct nvram_header *) KSEG1ADDR(base + 1024); -+ if (header->magic == NVRAM_HEADER) -+ goto found; -+ -+ return; -+ -+found: -+ 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 += 4) -+ *dst++ = le32_to_cpu(*src++); -+} -+ -+int nvram_getenv(char *name, char *val, size_t val_len) -+{ -+ char *var, *value, *end, *eq; -+ -+ if (!name) -+ return 1; -+ -+ if (!nvram_buf[0]) -+ early_nvram_init(); -+ -+ /* 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) { -+ snprintf(val, val_len, "%s", value); -+ return 0; -+ } -+ } -+ return 1; -+} -+EXPORT_SYMBOL(nvram_getenv); ---- a/arch/mips/bcm47xx/setup.c -+++ b/arch/mips/bcm47xx/setup.c -@@ -1,8 +1,8 @@ - /* - * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> -- * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> - * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> - * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> -+ * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> - * - * 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 -@@ -33,6 +33,7 @@ - #include <asm/time.h> - #include <bcm47xx.h> - #include <asm/fw/cfe/cfe_api.h> -+#include <asm/mach-bcm47xx/nvram.h> - - struct ssb_bus ssb_bcm47xx; - EXPORT_SYMBOL(ssb_bcm47xx); -@@ -81,28 +82,42 @@ static int bcm47xx_get_invariants(struct - /* Fill boardinfo structure */ - memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); - -- if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0) -+ if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) - iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); -- if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0) -+ if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) - iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); -- if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0) -+ if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) - iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); - - /* Fill sprom structure */ - memset(&(iv->sprom), 0, sizeof(struct ssb_sprom)); - iv->sprom.revision = 3; - -- if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0) -+ if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, iv->sprom.et0mac); -- if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0) -+ -+ if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, iv->sprom.et1mac); -- if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) -- iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 10); -- if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) -- iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 10); -- if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0) -+ -+ if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) -+ iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 0); -+ -+ if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) -+ iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 0); -+ -+ if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0) - iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10); -- if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0) -+ -+ if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0 || -+ nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0) - iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10); - - return 0; ---- /dev/null -+++ b/arch/mips/include/asm/mach-bcm47xx/nvram.h -@@ -0,0 +1,36 @@ -+/* -+ * Copyright (C) 2005, Broadcom Corporation -+ * Copyright (C) 2006, Felix Fietkau <nbd@openwrt.org> -+ * -+ * 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 __NVRAM_H -+#define __NVRAM_H -+ -+#include <linux/types.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 -+ -+extern int nvram_getenv(char *name, char *val, size_t val_len); -+ -+#endif |