diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0016-Add-system-reset-status-support.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0016-Add-system-reset-status-support.patch | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0016-Add-system-reset-status-support.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0016-Add-system-reset-status-support.patch new file mode 100644 index 000000000..1b0d4d95b --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0016-Add-system-reset-status-support.patch @@ -0,0 +1,154 @@ +From ea8f8aa37182b66893ac9afcbbb4d5043b3b4166 Mon Sep 17 00:00:00 2001 +From: Yong Li <yong.b.li@linux.intel.com> +Date: Tue, 9 Apr 2019 14:42:05 +0800 +Subject: [PATCH] Add system reset status support + +Will display the reset reasons and other CPU information in u-boot, +and save the reset reasons into kernel command line, +for applications to query. + +Change-Id: I87ada3ecf14368519e4d09035bb1e09fdc05469b +Signed-off-by: Yong Li <yong.b.li@linux.intel.com> +Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com> +Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +--- + arch/arm/mach-aspeed/ast2600/scu_info.c | 4 ++ + board/aspeed/ast2600_intel/intel.c | 65 +++++++++++++++++++++++++ + include/asm-generic/global_data.h | 3 ++ + 3 files changed, 72 insertions(+) + +diff --git a/arch/arm/mach-aspeed/ast2600/scu_info.c b/arch/arm/mach-aspeed/ast2600/scu_info.c +index fe26f743c0ca..18514c812018 100644 +--- a/arch/arm/mach-aspeed/ast2600/scu_info.c ++++ b/arch/arm/mach-aspeed/ast2600/scu_info.c +@@ -9,6 +9,8 @@ + #include <asm/io.h> + #include <asm/arch/aspeed_scu_info.h> + ++DECLARE_GLOBAL_DATA_PTR; ++ + /* SoC mapping Table */ + #define SOC_ID(str, rev) { .name = str, .rev_id = rev, } + +@@ -263,6 +265,8 @@ void aspeed_print_sysrst_info(void) + writel(SYS_EXT_RESET, ASPEED_SYS_RESET_CTRL); + } + } ++ ++ gd->reset_reason = rest; + } + + #define SOC_FW_INIT_DRAM BIT(7) +diff --git a/board/aspeed/ast2600_intel/intel.c b/board/aspeed/ast2600_intel/intel.c +index 0d1ce69b6e53..849e81ff3fef 100644 +--- a/board/aspeed/ast2600_intel/intel.c ++++ b/board/aspeed/ast2600_intel/intel.c +@@ -5,6 +5,7 @@ + #include <common.h> + #include <asm/gpio.h> + #include <asm/io.h> ++#include <malloc.h> + + /* use GPIOC0 on intel boards */ + #define FFUJ_GPIO "gpio@1e78000016" +@@ -292,6 +293,65 @@ int board_early_init_r(void) + return 0; + } + ++static void update_bootargs_cmd(const char *key, const char *value) ++{ ++ int buf_len; ++ char *buf; ++ char *cmdline; ++ char comp_key[128]; ++ ++ if (!key || (key[0] == '\0')) { ++ printf("%s - Empty key not allowed\n", __func__); ++ return; ++ } ++ ++ cmdline = env_get("bootargs"); ++ ++ /* Allocate space for maximum possible new command line */ ++ if (value) ++ buf_len = strlen(cmdline) + strlen(key) + 3 + strlen(value); ++ else ++ buf_len = strlen(cmdline) + strlen(key) + 3; ++ ++ buf = malloc(buf_len); ++ if (!buf) { ++ printf("%s: out of memory\n", __func__); ++ return; ++ } ++ memset(buf, 0, buf_len); ++ ++ if (!cmdline) { ++ /* lets add key-value, though bootargs are empty */ ++ snprintf(buf, buf_len, "%s=%s", key, (value ? value : "")); ++ env_set("bootargs", buf); ++ free(buf); ++ return; ++ } ++ ++ snprintf(comp_key, sizeof(comp_key), "%s=", key); ++ char *start = strstr(cmdline, comp_key); ++ ++ /* Check for full word match. Match should be start of cmdline ++ * or there should be space before match */ ++ if (start && ((start == cmdline) || (*(start-1) == ' '))) { ++ char *end = strchr(start, ' '); ++ strncpy(buf, cmdline, (start - cmdline)); ++ ++ if (end) ++ snprintf(buf, buf_len, "%s%s=%s %s", buf, key, ++ (value ? value : ""), end+1); ++ else ++ snprintf(buf, buf_len, "%s%s=%s", buf, key, ++ (value ? value : "")); ++ } else { ++ snprintf(buf, buf_len, "%s %s=%s", cmdline, key, ++ (value ? value : "")); ++ } ++ ++ env_set("bootargs", buf); ++ free(buf); ++} ++ + extern void espi_init(void); + extern void kcs_init(void); + extern void timer_enable(int n, u32 interval_us, interrupt_handler_t *handler, +@@ -301,12 +361,17 @@ int board_late_init(void) + #define SCU_014 0x014 /* Silicon Revision ID */ + #define REV_ID_AST2600A0 0x05000303 /* AST2600 A0 */ + #define ONE_MSEC_IN_USEC 1000 ++ char value[11]; + + if (readl(SCU_BASE | SCU_014) == REV_ID_AST2600A0) + timer_enable(0, ONE_MSEC_IN_USEC, timer_callback, (void *)0); + + espi_init(); + ++ /* Add reset reason to bootargs */ ++ snprintf(value, sizeof(value), "0x%x", gd->reset_reason); ++ update_bootargs_cmd("resetreason", value); ++ + if (read_ffuj()) + kcs_init(); + +diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h +index 78dcf40bff48..fa51e384520f 100644 +--- a/include/asm-generic/global_data.h ++++ b/include/asm-generic/global_data.h +@@ -133,6 +133,9 @@ typedef struct global_data { + struct spl_handoff *spl_handoff; + # endif + #endif ++#ifdef CONFIG_ARCH_ASPEED ++ u32 reset_reason; ++#endif + } gd_t; + #endif + +-- +2.17.1 + |