diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0022-Reboot-into-UBOOT-on-Watchdog-Failures.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0022-Reboot-into-UBOOT-on-Watchdog-Failures.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0022-Reboot-into-UBOOT-on-Watchdog-Failures.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0022-Reboot-into-UBOOT-on-Watchdog-Failures.patch new file mode 100644 index 000000000..d5ccddf27 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0022-Reboot-into-UBOOT-on-Watchdog-Failures.patch @@ -0,0 +1,87 @@ +From b81b62f2ca4d4e434f2fec090725e99f198f64ef 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] 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> +Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +--- + board/aspeed/ast2600_intel/intel.c | 34 ++++++++++++++++++++++++++++++ + 1 file changed, 34 insertions(+) + +diff --git a/board/aspeed/ast2600_intel/intel.c b/board/aspeed/ast2600_intel/intel.c +index 565893777ffc..2fb84e880e5c 100644 +--- a/board/aspeed/ast2600_intel/intel.c ++++ b/board/aspeed/ast2600_intel/intel.c +@@ -7,6 +7,28 @@ + #include <asm/io.h> + #include <malloc.h> + ++#define WATCHDOG_RESET_BIT BIT(20) ++#define BOOT_FAILURE_LIMIT 3 ++ ++static int get_boot_failures(void) ++{ ++ return env_get_ulong("bootfailures", 10, 0); ++} ++ ++static void set_boot_failures(u32 count) ++{ ++ if (count > BOOT_FAILURE_LIMIT) ++ return; ++ ++ env_set_ulong("bootfailures", count); ++ env_save(); ++} ++ ++int intel_failed_boot(void) ++{ ++ return get_boot_failures() >= BOOT_FAILURE_LIMIT; ++} ++ + /* use GPIOC0 on intel boards */ + #define FFUJ_GPIO "gpio@1e78000016" + +@@ -33,6 +55,10 @@ int read_ffuj(void) + int gpio_abort(void) + { + int value; ++ ++ if (intel_failed_boot()) ++ return 1; ++ + /* check ffuj to abort the autoboot */ + value = read_ffuj(); + printf("FFUJ: %d\n", value); +@@ -407,6 +433,7 @@ int board_late_init(void) + #define REV_ID_AST2600A0 0x05000303 /* AST2600 A0 */ + #define ONE_MSEC_IN_USEC 1000 + char value[11]; ++ u32 boot_failures; + + if (readl(SCU_BASE | SCU_014) == REV_ID_AST2600A0) + timer_enable(0, ONE_MSEC_IN_USEC, timer_callback, (void *)0); +@@ -417,6 +444,13 @@ int board_late_init(void) + snprintf(value, sizeof(value), "0x%x", gd->reset_reason); + update_bootargs_cmd("resetreason", value); + ++ boot_failures = get_boot_failures(); ++ ++ if (gd->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"); +-- +2.17.1 + |