brcm47xx: Add support for Huawei E970
This patch adds support for Huawei E970 wireless gateway devices. It has been tested on an E970 labelled as T-Mobile web'n'walk Box IV. E960/B970 should work too, from what I know it's basically the same hardware. The device has a Broadcom BCM5354 SoC and a built-in 3G USB modem. It uses a hardware watchdog which needs GPIO-7 to be toggled at least every 1-2 seconds. This patch uses gpio_wdt module (see my previous patch today) to take care of this. Tested and works: 3G wan, wlan+LED, VLAN config, failsafe using reset button, image to be used for upgrade from OEM firmware's web interface Link to the wiki page I've created: <http://wiki.openwrt.org/toh/huawei/e970> Issue: * lzma-loader crashes, so gzipped kernel is used. Presumably due to watchdog reset during kernel decompress. Signed-off-by: Mathias Adam <m.adam--openwrt@adamis.de> SVN-Revision: 38011
This commit is contained in:
Hauke Mehrtens
parent
0294358e11
commit
c78e4fb220
4 changed files with 121 additions and 1 deletions
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@ -59,6 +59,7 @@ CONFIG_GENERIC_SMP_IDLE_THREAD=y
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CONFIG_GPIOLIB=y
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CONFIG_GPIO_DEVRES=y
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CONFIG_GPIO_SYSFS=y
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CONFIG_GPIO_WDT=y
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CONFIG_HARDWARE_WATCHPOINTS=y
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CONFIG_HAS_DMA=y
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CONFIG_HAS_IOMEM=y
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@ -13,6 +13,7 @@ endef
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define Image/Prepare
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cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
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gzip -nc9 $(KDIR)/vmlinux > $(KDIR)/vmlinux.gz
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ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
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cat $(KDIR)/vmlinux-initramfs | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux-initramfs.lzma
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endif
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@ -59,6 +60,12 @@ define Image/Build/Edi
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$(STAGING_DIR_HOST)/bin/trx2edips $(BIN_DIR)/$(IMG_PREFIX)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(3).bin
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endef
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define Image/Build/Huawei
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dd if=/dev/zero of=$(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin bs=92 count=1
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echo -ne 'HDR0\x08\x00\x00\x00' >> $(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin
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cat $(BIN_DIR)/$(IMG_PREFIX)-$(1)-gz.trx >> $(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin
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endef
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define trxalign/jffs2-128k
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-a 0x20000 -f $(KDIR)/root.$(1)
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endef
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@ -134,9 +141,13 @@ define Image/Build
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$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1).trx \
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-f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma \
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$(call trxalign/$(1),$(1))
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$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1)-gz.trx \
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-f $(KDIR)/vmlinux.gz \
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$(call trxalign/$(1),$(1))
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$(call Image/Build/$(1),$(1))
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$(call Image/Build/Motorola,$(1),wr850g,1,$(1))
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$(call Image/Build/USR,$(1),usr5461,$(1))
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$(call Image/Build/Huawei,$(1),e970,$(1))
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$(call Image/Build/Chk,$(1),wgr614_v8,U12H072T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
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# $(call Image/Build/Chk,$(1),wgr614_v9,U12H094T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
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$(call Image/Build/Chk,$(1),wndr3300_v1,U12H093T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
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108
target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
Normal file
108
target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
Normal file
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@ -0,0 +1,108 @@
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--- a/arch/mips/bcm47xx/setup.c
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+++ b/arch/mips/bcm47xx/setup.c
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@@ -33,11 +33,13 @@
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#include <linux/bcma/bcma_soc.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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+#include <linux/gpio_wdt.h>
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#include <asm/bootinfo.h>
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#include <asm/reboot.h>
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#include <asm/time.h>
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#include <bcm47xx.h>
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#include <bcm47xx_nvram.h>
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+#include <bcm47xx_board.h>
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union bcm47xx_bus bcm47xx_bus;
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EXPORT_SYMBOL(bcm47xx_bus);
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@@ -254,6 +256,33 @@ void __init plat_mem_setup(void)
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pm_power_off = bcm47xx_machine_halt;
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}
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+static struct gpio_wdt_platform_data gpio_wdt_data;
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+
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+static struct platform_device gpio_wdt_device = {
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+ .name = "gpio-wdt",
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+ .id = 0,
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+ .dev = {
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+ .platform_data = &gpio_wdt_data,
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+ },
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+};
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+
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+static int __init bcm47xx_register_gpio_watchdog(void)
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+{
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+ enum bcm47xx_board board = bcm47xx_board_get();
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+
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+ switch (board) {
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+ case BCM47XX_BOARD_HUAWEI_E970:
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+ pr_info("bcm47xx: detected Huawei E970 or similar, starting early gpio_wdt timer\n");
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+ gpio_wdt_data.gpio = 7;
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+ gpio_wdt_data.interval = HZ;
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+ gpio_wdt_data.first_interval = HZ / 5;
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+ return platform_device_register(&gpio_wdt_device);
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+ default:
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+ /* Nothing to do */
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+ return 0;
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+ }
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+}
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+
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static int __init bcm47xx_register_bus_complete(void)
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{
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switch (bcm47xx_bus_type) {
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@@ -268,6 +297,8 @@ static int __init bcm47xx_register_bus_c
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break;
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#endif
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}
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+ bcm47xx_register_gpio_watchdog();
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+
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return 0;
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}
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device_initcall(bcm47xx_register_bus_complete);
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--- a/arch/mips/configs/bcm47xx_defconfig
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+++ b/arch/mips/configs/bcm47xx_defconfig
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@@ -379,6 +379,7 @@ CONFIG_THERMAL=y
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CONFIG_WATCHDOG=y
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CONFIG_WATCHDOG_NOWAYOUT=y
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CONFIG_BCM47XX_WDT=y
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+CONFIG_GPIO_WDT=y
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CONFIG_SSB_DRIVER_GIGE=y
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CONFIG_DISPLAY_SUPPORT=m
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CONFIG_SOUND=m
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--- a/drivers/ssb/embedded.c
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+++ b/drivers/ssb/embedded.c
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@@ -34,11 +34,36 @@ int ssb_watchdog_timer_set(struct ssb_bu
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}
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EXPORT_SYMBOL(ssb_watchdog_timer_set);
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+#ifdef CONFIG_BCM47XX
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+#include <bcm47xx_board.h>
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+
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+static bool ssb_watchdog_supported(void)
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+{
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+ enum bcm47xx_board board = bcm47xx_board_get();
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+
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+ /* The Huawei E970 has a hardware watchdog using a GPIO */
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+ switch (board) {
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+ case BCM47XX_BOARD_HUAWEI_E970:
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+ return false;
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+ default:
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+ return true;
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+ }
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+}
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+#else
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+static bool ssb_watchdog_supported(void)
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+{
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+ return true;
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+}
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+#endif
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+
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int ssb_watchdog_register(struct ssb_bus *bus)
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{
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struct bcm47xx_wdt wdt = {};
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struct platform_device *pdev;
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+ if (!ssb_watchdog_supported())
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+ return 0;
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+
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if (ssb_chipco_available(&bus->chipco)) {
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wdt.driver_data = &bus->chipco;
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wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
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@ -1,6 +1,6 @@
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--- a/arch/mips/bcm47xx/setup.c
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+++ b/arch/mips/bcm47xx/setup.c
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@@ -120,6 +120,10 @@ static int bcm47xx_get_invariants(struct
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@@ -122,6 +122,10 @@ static int bcm47xx_get_invariants(struct
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if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
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iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
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