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authorHauke Mehrtens <hauke@hauke-m.de>2013-09-16 21:09:10 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2013-09-16 21:09:10 +0000
commitc78e4fb220169b5ee8358f7b2582972c00b88fd7 (patch)
tree92a03712c7eb03a09d8d2ab2cdd1b54ea84cfb9e /target/linux
parent0294358e11cbcb9c754f4c6056a070e8b36b5dd8 (diff)
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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
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/brcm47xx/config-3.101
-rw-r--r--target/linux/brcm47xx/image/Makefile11
-rw-r--r--target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch108
-rw-r--r--target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch2
4 files changed, 121 insertions, 1 deletions
diff --git a/target/linux/brcm47xx/config-3.10 b/target/linux/brcm47xx/config-3.10
index 614205f..9d4f503 100644
--- a/target/linux/brcm47xx/config-3.10
+++ b/target/linux/brcm47xx/config-3.10
@@ -59,6 +59,7 @@ CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_WDT=y
CONFIG_HARDWARE_WATCHPOINTS=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
diff --git a/target/linux/brcm47xx/image/Makefile b/target/linux/brcm47xx/image/Makefile
index 9a477a6..eca09a8 100644
--- a/target/linux/brcm47xx/image/Makefile
+++ b/target/linux/brcm47xx/image/Makefile
@@ -13,6 +13,7 @@ endef
define Image/Prepare
cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+ gzip -nc9 $(KDIR)/vmlinux > $(KDIR)/vmlinux.gz
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
cat $(KDIR)/vmlinux-initramfs | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux-initramfs.lzma
endif
@@ -59,6 +60,12 @@ define Image/Build/Edi
$(STAGING_DIR_HOST)/bin/trx2edips $(BIN_DIR)/$(IMG_PREFIX)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(3).bin
endef
+define Image/Build/Huawei
+ dd if=/dev/zero of=$(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin bs=92 count=1
+ echo -ne 'HDR0\x08\x00\x00\x00' >> $(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin
+ cat $(BIN_DIR)/$(IMG_PREFIX)-$(1)-gz.trx >> $(BIN_DIR)/openwrt-$(2)-$(3)-gz.bin
+endef
+
define trxalign/jffs2-128k
-a 0x20000 -f $(KDIR)/root.$(1)
endef
@@ -134,9 +141,13 @@ define Image/Build
$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1).trx \
-f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma \
$(call trxalign/$(1),$(1))
+ $(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1)-gz.trx \
+ -f $(KDIR)/vmlinux.gz \
+ $(call trxalign/$(1),$(1))
$(call Image/Build/$(1),$(1))
$(call Image/Build/Motorola,$(1),wr850g,1,$(1))
$(call Image/Build/USR,$(1),usr5461,$(1))
+ $(call Image/Build/Huawei,$(1),e970,$(1))
$(call Image/Build/Chk,$(1),wgr614_v8,U12H072T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
# $(call Image/Build/Chk,$(1),wgr614_v9,U12H094T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
$(call Image/Build/Chk,$(1),wndr3300_v1,U12H093T00_NETGEAR,2,$(patsubst jffs2-%,jffs2,$(1)))
diff --git a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
new file mode 100644
index 0000000..12539fd
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
@@ -0,0 +1,108 @@
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -33,11 +33,13 @@
+ #include <linux/bcma/bcma_soc.h>
+ #include <linux/serial.h>
+ #include <linux/serial_8250.h>
++#include <linux/gpio_wdt.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+ #include <bcm47xx.h>
+ #include <bcm47xx_nvram.h>
++#include <bcm47xx_board.h>
+
+ union bcm47xx_bus bcm47xx_bus;
+ EXPORT_SYMBOL(bcm47xx_bus);
+@@ -254,6 +256,33 @@ void __init plat_mem_setup(void)
+ pm_power_off = bcm47xx_machine_halt;
+ }
+
++static struct gpio_wdt_platform_data gpio_wdt_data;
++
++static struct platform_device gpio_wdt_device = {
++ .name = "gpio-wdt",
++ .id = 0,
++ .dev = {
++ .platform_data = &gpio_wdt_data,
++ },
++};
++
++static int __init bcm47xx_register_gpio_watchdog(void)
++{
++ enum bcm47xx_board board = bcm47xx_board_get();
++
++ switch (board) {
++ case BCM47XX_BOARD_HUAWEI_E970:
++ pr_info("bcm47xx: detected Huawei E970 or similar, starting early gpio_wdt timer\n");
++ gpio_wdt_data.gpio = 7;
++ gpio_wdt_data.interval = HZ;
++ gpio_wdt_data.first_interval = HZ / 5;
++ return platform_device_register(&gpio_wdt_device);
++ default:
++ /* Nothing to do */
++ return 0;
++ }
++}
++
+ static int __init bcm47xx_register_bus_complete(void)
+ {
+ switch (bcm47xx_bus_type) {
+@@ -268,6 +297,8 @@ static int __init bcm47xx_register_bus_c
+ break;
+ #endif
+ }
++ bcm47xx_register_gpio_watchdog();
++
+ return 0;
+ }
+ device_initcall(bcm47xx_register_bus_complete);
+--- a/arch/mips/configs/bcm47xx_defconfig
++++ b/arch/mips/configs/bcm47xx_defconfig
+@@ -379,6 +379,7 @@ CONFIG_THERMAL=y
+ CONFIG_WATCHDOG=y
+ CONFIG_WATCHDOG_NOWAYOUT=y
+ CONFIG_BCM47XX_WDT=y
++CONFIG_GPIO_WDT=y
+ CONFIG_SSB_DRIVER_GIGE=y
+ CONFIG_DISPLAY_SUPPORT=m
+ CONFIG_SOUND=m
+--- a/drivers/ssb/embedded.c
++++ b/drivers/ssb/embedded.c
+@@ -34,11 +34,36 @@ int ssb_watchdog_timer_set(struct ssb_bu
+ }
+ EXPORT_SYMBOL(ssb_watchdog_timer_set);
+
++#ifdef CONFIG_BCM47XX
++#include <bcm47xx_board.h>
++
++static bool ssb_watchdog_supported(void)
++{
++ enum bcm47xx_board board = bcm47xx_board_get();
++
++ /* The Huawei E970 has a hardware watchdog using a GPIO */
++ switch (board) {
++ case BCM47XX_BOARD_HUAWEI_E970:
++ return false;
++ default:
++ return true;
++ }
++}
++#else
++static bool ssb_watchdog_supported(void)
++{
++ return true;
++}
++#endif
++
+ int ssb_watchdog_register(struct ssb_bus *bus)
+ {
+ struct bcm47xx_wdt wdt = {};
+ struct platform_device *pdev;
+
++ if (!ssb_watchdog_supported())
++ return 0;
++
+ if (ssb_chipco_available(&bus->chipco)) {
+ wdt.driver_data = &bus->chipco;
+ wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
diff --git a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
index 4550676..f30a4fb 100644
--- a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
+++ b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch
@@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
-@@ -120,6 +120,10 @@ static int bcm47xx_get_invariants(struct
+@@ -122,6 +122,10 @@ static int bcm47xx_get_invariants(struct
if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);