diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0012-Add-status-and-ID-LED-support.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0012-Add-status-and-ID-LED-support.patch | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0012-Add-status-and-ID-LED-support.patch b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0012-Add-status-and-ID-LED-support.patch new file mode 100644 index 000000000..e333b6cc0 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0012-Add-status-and-ID-LED-support.patch @@ -0,0 +1,147 @@ +From e252fcfd1ad66f1af57da1851bb39a398a9545e7 Mon Sep 17 00:00:00 2001 +From: Vernon Mauery <vernon.mauery@linux.intel.com> +Date: Wed, 14 Nov 2018 12:16:53 -0800 +Subject: [PATCH] Add status and ID LED support + +Add status (amber and green) and ID (blue) LED support. In the +bootloader phase, the LEDs should be blinking. When booting linux, they +should turn to a fixed state. + +Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com> +Signed-off-by: James Feist <james.feist@linux.intel.com> +Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com> +Change-Id: Ic9595621b21000ef465ff57ed2047855296e2714 + +--- + board/aspeed/ast-g5/ast-g5-intel.c | 113 +++++++++++++++++++++++++++++ + 1 file changed, 113 insertions(+) + +diff --git a/board/aspeed/ast-g5/ast-g5-intel.c b/board/aspeed/ast-g5/ast-g5-intel.c +index 4ef25ab8f5..e27b538fcc 100644 +--- a/board/aspeed/ast-g5/ast-g5-intel.c ++++ b/board/aspeed/ast-g5/ast-g5-intel.c +@@ -149,6 +149,112 @@ static void sgpio_init(void) + writel(value, AST_GPIO_BASE + GPIO254); + } + ++/* running the timer at 48 hertz will easily give a 24Hz blink */ ++#define TICK_HZ 48 ++#define BLINK_DELAY(HZ) ((int)((TICK_HZ / (HZ)) / 2) - 1) ++typedef enum { ++ /* ++ * Identifies the control request for the ID LED. ++ */ ++ EIDLED_Initialize = 0, ++ EIDLED_Tick, ++ EIDLED_Toggle, ++ EIDLED_Off, ++ EIDLED_On, ++ EIDLED_Blink, ++ EIDLED_Blink_24HZ = EIDLED_Blink + BLINK_DELAY(24), ++ EIDLED_Blink_12HZ = EIDLED_Blink + BLINK_DELAY(12), ++ EIDLED_Blink_6HZ = EIDLED_Blink + BLINK_DELAY(6), ++ EIDLED_Blink_3HZ = EIDLED_Blink + BLINK_DELAY(3), ++ EIDLED_Blink_1HZ = EIDLED_Blink + BLINK_DELAY(1), ++ EIDLED_Blink_0_5HZ = EIDLED_Blink + BLINK_DELAY(0.5), ++} EIDLEDControl; ++ ++struct led_info { ++ int gpio; ++ EIDLEDControl mode; ++ int count; ++ int state; ++}; ++ ++static struct led_info s_led_info[] = { ++ /* BMC Executing bootloader (Default) :- ++ * ChassisID: Blinking Blue 3Hz, StatusLED: Blinking Green 1Hz */ ++ [GPIO_ID_LED] = {GPIO_ID_LED, EIDLED_Blink_3HZ, 1, 0}, ++ [GPIO_GREEN_LED] = {GPIO_GREEN_LED, EIDLED_Blink_1HZ, 0, 0}, ++ [GPIO_AMBER_LED] = {GPIO_AMBER_LED, EIDLED_Off, 0, 0}, ++}; ++ ++extern void gpio_set_value(int n, int asserted); ++void id_led_control(int id, int action) ++{ ++ if (id >= ARRAY_SIZE(s_led_info)) { ++ return; ++ } ++ /* don't bother with LEDs that are not initialized */ ++ if (EIDLED_Initialize == s_led_info[id].mode) { ++ return; ++ } ++ ++ /* check for a blinker action */ ++ if (EIDLED_Tick == action) { ++ if (s_led_info[id].mode < EIDLED_Blink) { ++ return; ++ } ++ /* check countdown for blink */ ++ if (s_led_info[id].count == 0) { ++ s_led_info[id].count = ++ s_led_info[id].mode - EIDLED_Blink; ++ s_led_info[id].state = !s_led_info[id].state; ++ } else { ++ s_led_info[id].count--; ++ return; ++ } ++ } else if (EIDLED_Toggle == action) { ++ s_led_info[id].state = !s_led_info[id].state; ++ s_led_info[id].mode = ++ s_led_info[id].state ? EIDLED_On : EIDLED_Off; ++ } else if (action > EIDLED_Toggle) { ++ s_led_info[id].mode = action; ++ if (EIDLED_Off == action) { ++ s_led_info[id].state = 0; ++ } else if (EIDLED_On == action) { ++ s_led_info[id].state = 1; ++ } else if (action >= EIDLED_Blink) { ++ s_led_info[id].count = action - EIDLED_Blink; ++ /* wait for the next tick */ ++ return; ++ } ++ } else if (EIDLED_Initialize == action) { ++ if (s_led_info[id].mode >= EIDLED_Blink) { ++ s_led_info[id].count = ++ s_led_info[id].mode - EIDLED_Blink; ++ } ++ } ++ gpio_set_value(s_led_info[id].gpio, s_led_info[id].state); ++} ++ ++static void timer8_irq_handler(void *regs) ++{ ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(s_led_info); i++) { ++ id_led_control(i, EIDLED_Tick); ++ } ++} ++ ++void timer8_init(void) ++{ ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(s_led_info); i++) { ++ id_led_control(i, EIDLED_Initialize); ++ } ++ ++ /* set up the timer to fire at TICK_HZ HZ */ ++ timer_enable(TIMER_8, TICK_HZ, timer8_irq_handler); ++} ++ + int intel_force_firmware_jumper_enabled(void) + { + return gpio_get_value(GPIO_FF_UPD_JUMPER); +@@ -160,4 +266,11 @@ void ast_g5_intel(void) + gpio_init(gpio_table, ARRAY_SIZE(gpio_table)); + espi_init(); + sgpio_init(); ++ timer8_init(); ++ if (intel_force_firmware_jumper_enabled()) { ++ /* FFUJ mode:- ChassisID: Solid Blue, StatusLED: Solid Amber */ ++ id_led_control(GPIO_ID_LED, EIDLED_On); ++ id_led_control(GPIO_GREEN_LED, EIDLED_Off); ++ id_led_control(GPIO_AMBER_LED, EIDLED_On); ++ } + } |