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- --- a/arch/mips/bcm47xx/setup.c
- +++ b/arch/mips/bcm47xx/setup.c
- @@ -36,6 +36,7 @@
- #include <linux/ssb/ssb.h>
- #include <linux/ssb/ssb_embedded.h>
- #include <linux/bcma/bcma_soc.h>
- +#include <linux/old_gpio_wdt.h>
- #include <asm/bootinfo.h>
- #include <asm/idle.h>
- #include <asm/prom.h>
- @@ -245,6 +246,33 @@ static struct fixed_phy_status bcm47xx_f
- .duplex = DUPLEX_FULL,
- };
-
- +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) {
- @@ -264,6 +292,7 @@ static int __init bcm47xx_register_bus_c
- bcm47xx_workarounds();
-
- fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
- + bcm47xx_register_gpio_watchdog();
- return 0;
- }
- device_initcall(bcm47xx_register_bus_complete);
- --- a/arch/mips/configs/bcm47xx_defconfig
- +++ b/arch/mips/configs/bcm47xx_defconfig
- @@ -67,6 +67,7 @@ CONFIG_HW_RANDOM=y
- CONFIG_GPIO_SYSFS=y
- CONFIG_WATCHDOG=y
- CONFIG_BCM47XX_WDT=y
- +CONFIG_GPIO_WDT=y
- CONFIG_SSB_DEBUG=y
- CONFIG_SSB_DRIVER_GIGE=y
- CONFIG_BCMA_DRIVER_GMAC_CMN=y
- --- 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;
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