diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0033-Reboot-into-UBOOT-on-Watchdog-Failures.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0033-Reboot-into-UBOOT-on-Watchdog-Failures.patch | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0033-Reboot-into-UBOOT-on-Watchdog-Failures.patch b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0033-Reboot-into-UBOOT-on-Watchdog-Failures.patch new file mode 100644 index 000000000..e673da7ee --- /dev/null +++ b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0033-Reboot-into-UBOOT-on-Watchdog-Failures.patch @@ -0,0 +1,110 @@ +From c82bf9de515cbbdb4ea1a350be83fb89f4a83631 Mon Sep 17 00:00:00 2001 +From: James Feist <james.feist@linux.intel.com> +Date: Wed, 31 Jul 2019 16:01:49 -0700 +Subject: [PATCH 1/1] Reboot into UBOOT on Watchdog Failures + +We use watchdog1 to reboot when there is a watchdog +error. Reboot into u-boot as we are using that as +safe mode. + +Tested: watchdog -T 0 -F /dev/watchdog1 reboots into +uboot after 3 times + +Signed-off-by: James Feist <james.feist@linux.intel.com> +--- + .../include/asm/arch-aspeed/ast-g5-intel.h | 1 + + board/aspeed/ast-g5/ast-g5-intel.c | 31 +++++++++++++++++++ + common/autoboot.c | 2 ++ + 3 files changed, 34 insertions(+) + +diff --git a/arch/arm/include/asm/arch-aspeed/ast-g5-intel.h b/arch/arm/include/asm/arch-aspeed/ast-g5-intel.h +index a88521a1b3..64f4ed17bf 100644 +--- a/arch/arm/include/asm/arch-aspeed/ast-g5-intel.h ++++ b/arch/arm/include/asm/arch-aspeed/ast-g5-intel.h +@@ -14,6 +14,7 @@ + + #ifndef __ASSEMBLY__ + int intel_force_firmware_jumper_enabled(void); ++int intel_failed_boot(void); + void start_fw_update_loop(void); + #endif + +diff --git a/board/aspeed/ast-g5/ast-g5-intel.c b/board/aspeed/ast-g5/ast-g5-intel.c +index e68ab8546a..c003d9a7bc 100644 +--- a/board/aspeed/ast-g5/ast-g5-intel.c ++++ b/board/aspeed/ast-g5/ast-g5-intel.c +@@ -111,6 +111,24 @@ static const GPIOValue gpio_table[] = { + #define HOST_SERIAL_A_HIGH_SPEED (1 << 0) + #define HOST_SERIAL_B_HIGH_SPEED (1 << 1) + ++#define WATCHDOG_RESET_BIT 0x8 ++#define BOOT_FAILURE_LIMIT 0x3 ++ ++static int get_boot_failures(void) ++{ ++ return getenv_ulong("bootfailures", 10, 0); ++} ++ ++static void set_boot_failures(u32 count) ++{ ++ if (count > BOOT_FAILURE_LIMIT) ++ return; ++ ++ setenv_ulong("bootfailures", count); ++ saveenv(); ++} ++ ++ + static void sgpio_init(void) + { + uint32_t value; +@@ -270,6 +288,11 @@ int intel_force_firmware_jumper_enabled(void) + return gpio_get_value(GPIO_FF_UPD_JUMPER); + } + ++int intel_failed_boot(void) ++{ ++ return get_boot_failures() >= BOOT_FAILURE_LIMIT; ++} ++ + void arch_preboot_os(void) + { + // last second before booting... set the LEDs +@@ -402,6 +425,7 @@ void ast_g5_intel_late_init(void) + { + char value[32]; + u32 reset_reason = 0; ++ u32 boot_failures = 0; + + /* By default host serail A and B use normal speed */ + uint32_t host_serial_cfg = 0; +@@ -446,6 +470,13 @@ void ast_g5_intel_late_init(void) + + update_bootargs_cmd("resetreason", value); + ++ boot_failures = get_boot_failures(); ++ ++ if (reset_reason & WATCHDOG_RESET_BIT) ++ set_boot_failures(boot_failures + 1); ++ else ++ set_boot_failures(0); ++ + /* Update the special mode in bootargs */ + if (is_mfg_mode_phy_req()) + update_bootargs_cmd("special", "mfg"); +diff --git a/common/autoboot.c b/common/autoboot.c +index 45a600e663..03fd164501 100644 +--- a/common/autoboot.c ++++ b/common/autoboot.c +@@ -263,6 +263,8 @@ static int abortboot(int bootdelay) + # ifdef AST_G5_INTEL + if (intel_force_firmware_jumper_enabled()) + return 1; ++ if (intel_failed_boot()) ++ return 1; + # endif + + if (bootdelay >= 0) +-- +2.17.1 + |