diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0025-Manufacturing-mode-physical-presence-detection.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0025-Manufacturing-mode-physical-presence-detection.patch | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0025-Manufacturing-mode-physical-presence-detection.patch b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0025-Manufacturing-mode-physical-presence-detection.patch new file mode 100644 index 000000000..f6f402bc9 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0025-Manufacturing-mode-physical-presence-detection.patch @@ -0,0 +1,121 @@ +From 6b4e1b3672433c0d7d392404e19d114ae25e0eb2 Mon Sep 17 00:00:00 2001 +From: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com> +Date: Wed, 24 Apr 2019 22:35:43 +0530 +Subject: [PATCH] Manufacturing mode physical presence detection + +Support for physical presence of manufacturing mode added. +Front panel power button press for 8 seconds will be detected +and marked as special mode for manufacturing request + +Tested: +1. Verified by holding the power button when u-boot boots for +8 seconds, and confirmed that bootargs passed to linux has +special=mfg string +2. Verified in normal condition special=mfg string is not passed. + +Change-Id: Id7e7c7e7860c7ef3ae8e3a7a7cfda7ff506c0f2b +Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com> +--- + board/aspeed/ast-g5/ast-g5-gpio.h | 2 +- + board/aspeed/ast-g5/ast-g5-intel.c | 39 ++++++++++++++++++++++++++++++++++++-- + 2 files changed, 38 insertions(+), 3 deletions(-) + +diff --git a/board/aspeed/ast-g5/ast-g5-gpio.h b/board/aspeed/ast-g5/ast-g5-gpio.h +index a820c0f..ed2499f 100644 +--- a/board/aspeed/ast-g5/ast-g5-gpio.h ++++ b/board/aspeed/ast-g5/ast-g5-gpio.h +@@ -72,7 +72,7 @@ + #define AMB_LED_PORT_PIN PORT_PIN(GPIO_PORT_S, GPIO_PIN_5) + #define FORCE_BMC_UPDATE_PORT_PIN PORT_PIN(GPIO_PORT_D, GPIO_PIN_0) + #define TPM_EN_PULSE_PORT_PIN PORT_PIN(GPIO_PORT_D, GPIO_PIN_6) +- ++#define FP_PWR_BTN_PORT_PIN PORT_PIN(GPIO_PORT_E, GPIO_PIN_2) + + // GPIO Configuration Register bits + #define GPCFG_EVENT_TO_SMI (1 << 7) // 1 == enabled +diff --git a/board/aspeed/ast-g5/ast-g5-intel.c b/board/aspeed/ast-g5/ast-g5-intel.c +index 881ab89..86b422f 100644 +--- a/board/aspeed/ast-g5/ast-g5-intel.c ++++ b/board/aspeed/ast-g5/ast-g5-intel.c +@@ -24,6 +24,7 @@ enum gpio_names { + GPIO_AMBER_LED, + GPIO_FF_UPD_JUMPER, + GPIO_ENABLE_TPM_PULSE, ++ GPIO_FP_PWR_BTN, + }; + + #define GPIO_CFG_DEFAULT (GPCFG_ACTIVE_HIGH | GPCFG_LEVEL_TRIG) +@@ -55,6 +56,10 @@ static const GPIOValue gpio_table[] = { + /* Enable Pulse -- pin D6 */ + [GPIO_ENABLE_TPM_PULSE] = {TPM_EN_PULSE_PORT_PIN, GPCFG_OUTPUT_EN, 0, + GPIO_DEBOUNCE_NONE}, ++ /* Front Panel Power Button -- pin E2 */ ++ [GPIO_FP_PWR_BTN] = {FP_PWR_BTN_PORT_PIN, GPIO_CFG_DEFAULT, 0, ++ GPIO_DEBOUNCE_8MS}, ++ + }; + + #define LPC_SNOOP_ADDR 0x80 +@@ -313,12 +318,35 @@ static inline void ast_scu_write(uint32_t val, uint32_t reg) + #endif + } + ++static bool is_mfg_mode_phy_req(void) ++{ ++ /* ++ * Assume mfg mode physical request is made, if power button ++ * is pressed continously for 8 seconds, indicate the ++ * same in bootargs ++ */ ++ const uint32_t delay_in_ms = 100; ++ const uint32_t read_count = ((8 * 1000) / delay_in_ms); ++ for (uint32_t count = 0; count < read_count; ++count) { ++ if (!gpio_get_value(GPIO_FP_PWR_BTN)) ++ return false; ++ ++ mdelay(delay_in_ms); ++ } ++ debug("is_mfg_mode_phy_req : detected mfg mode request\n"); ++ ++ return true; ++} ++ + void ast_g5_intel_late_init(void) + { + char *cmdline = NULL; + char *cmdline_new = NULL; + char buf[32]; + u32 rest = 0; ++ const char *special_mfg_str = " special=mfg"; ++ const u32 special_str_size = strlen(special_mfg_str); ++ u32 buf_count = 0; + + /* By default host serail A and B use normal speed */ + uint32_t host_serial_cfg = 0; +@@ -367,14 +395,21 @@ void ast_g5_intel_late_init(void) + return; + } + +- cmdline_new = malloc(strlen(cmdline) + strlen(buf) + 1); ++ cmdline_new = malloc(strlen(cmdline) + strlen(buf) + ++ special_str_size + 1); + if (!cmdline_new) { + printf("Cannot malloc memory!\n"); + return; + } + + /* append the reset status into kernel command line */ +- snprintf(cmdline_new, strlen(cmdline) + strlen(buf) + 1, "%s%s", cmdline, buf); ++ buf_count = snprintf(cmdline_new, strlen(cmdline) + strlen(buf) + 1, ++ "%s%s", cmdline, buf); ++ ++ if (is_mfg_mode_phy_req()) ++ snprintf(cmdline_new + buf_count - 1, special_str_size + 1, ++ "%s", special_mfg_str); ++ + setenv("bootargs", cmdline_new); + free(cmdline_new); + } +-- +2.7.4 + |