openwrtv3/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch
Hauke Mehrtens b201818044 brcm47xx: update early printk patches
Early printk was disabled because it caused hangs on some devices, the
old patches were using the CFE console now we use the normal serial
console, it is at a constant address.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 38309
2013-10-06 23:55:35 +00:00

102 lines
2.4 KiB
Diff

--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -31,6 +31,7 @@
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
+#include <linux/gpio_wdt.h>
#include <asm/bootinfo.h>
#include <asm/prom.h>
#include <asm/reboot.h>
@@ -229,6 +230,33 @@ void __init plat_mem_setup(void)
mips_set_machine_name(bcm47xx_board_get_name());
}
+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) {
@@ -243,6 +271,8 @@ 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;