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authorHauke Mehrtens <hauke@openwrt.org>2013-09-16 21:09:10 +0000
committerHauke Mehrtens <hauke@openwrt.org>2013-09-16 21:09:10 +0000
commit81cf14367f8ae02d06d6b906a096c2f9a8bdd961 (patch)
tree4bc4846986603fc6055798586e63e28e29772b66 /target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
parent565a027db3953ed022fdabe1d1e4058707335a1d (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> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38011 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch108
1 files changed, 108 insertions, 0 deletions
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 0000000000..12539fd9be
--- /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;