diff options
Diffstat (limited to 'meta-ampere')
| -rw-r--r-- | meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0001-aspeed-scu-Switch-PWM-pin-to-GPIO-input-mode.patch | 87 | ||||
| -rw-r--r-- | meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend | 5 |
2 files changed, 92 insertions, 0 deletions
diff --git a/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0001-aspeed-scu-Switch-PWM-pin-to-GPIO-input-mode.patch b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0001-aspeed-scu-Switch-PWM-pin-to-GPIO-input-mode.patch new file mode 100644 index 000000000..b714be4c6 --- /dev/null +++ b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0001-aspeed-scu-Switch-PWM-pin-to-GPIO-input-mode.patch @@ -0,0 +1,87 @@ +From 03dcf584823b8b7db7d437257dbb45bd4b7f95b4 Mon Sep 17 00:00:00 2001 +From: Chanh Nguyen <chnguyen@amperecomputing.com> +Date: Mon, 21 Dec 2020 07:01:14 +0000 +Subject: [PATCH] aspeed/scu : Switch PWM pin to GPIO input mode + +In hardware design, the PWM pins will be at a high level if they are +configured in GPIO Input mode. This commit configures all PWM function +pins to input GPIO mode. This will allow fans to run at full speed when BMC resets or in U-boot. + +Signed-off-by: Chanh Nguyen <chnguyen@amperecomputing.com> +--- + arch/arm/include/asm/arch-aspeed/ast_scu.h | 1 + + arch/arm/mach-aspeed/ast-scu.c | 12 ++++++++++++ + board/aspeed/ast-g5/ast-g5.c | 10 ++++++++++ + include/configs/ast-g5-phy.h | 3 +++ + 4 files changed, 26 insertions(+) + +diff --git a/arch/arm/include/asm/arch-aspeed/ast_scu.h b/arch/arm/include/asm/arch-aspeed/ast_scu.h +index dcbc6730d4..d2c010a0dc 100644 +--- a/arch/arm/include/asm/arch-aspeed/ast_scu.h ++++ b/arch/arm/include/asm/arch-aspeed/ast_scu.h +@@ -45,5 +45,6 @@ extern u32 ast_scu_get_vga_memsize(void); + extern void ast_scu_init_eth(u8 num); + extern void ast_scu_multi_func_eth(u8 num); + extern void ast_scu_multi_func_romcs(u8 num); ++extern void ast_scu_switch_pwm_to_gpio_mode(void); + + #endif +diff --git a/arch/arm/mach-aspeed/ast-scu.c b/arch/arm/mach-aspeed/ast-scu.c +index 12de9b8036..ef90ef3805 100644 +--- a/arch/arm/mach-aspeed/ast-scu.c ++++ b/arch/arm/mach-aspeed/ast-scu.c +@@ -443,6 +443,18 @@ void ast_scu_multi_func_eth(u8 num) + } + } + ++void ast_scu_switch_pwm_to_gpio_mode(void) ++{ ++ ast_scu_write(ast_scu_read(AST_SCU_FUN_PIN_CTRL3) & ++ ~SCU_FUN_PIN_VPIG2 & ++ ~SCU_FUN_PIN_VPIG3 & ++ ~SCU_FUN_PIN_VPIG4 & ++ ~SCU_FUN_PIN_VPIG5 & ++ ~SCU_FUN_PIN_VPIG6 & ++ ~SCU_FUN_PIN_VPIG7, ++ AST_SCU_FUN_PIN_CTRL3); ++} ++ + void ast_scu_multi_func_romcs(u8 num) + { + ast_scu_write(ast_scu_read(AST_SCU_FUN_PIN_CTRL3) | +diff --git a/board/aspeed/ast-g5/ast-g5.c b/board/aspeed/ast-g5/ast-g5.c +index e67a4bf8b2..fba22a728e 100644 +--- a/board/aspeed/ast-g5/ast-g5.c ++++ b/board/aspeed/ast-g5/ast-g5.c +@@ -24,6 +24,16 @@ int board_init(void) + return 0; + } + ++#ifdef CONFIG_BOARD_LATE_INIT ++int board_late_init(void) ++{ ++ /* Switch PWM to GPIO mode to make FAN run in max speed */ ++ ast_scu_switch_pwm_to_gpio_mode(); ++ ++ return 0; ++} ++#endif ++ + int dram_init(void) + { + u32 vga = ast_scu_get_vga_memsize(); +diff --git a/include/configs/ast-g5-phy.h b/include/configs/ast-g5-phy.h +index 62ddb841e5..5443a26cab 100644 +--- a/include/configs/ast-g5-phy.h ++++ b/include/configs/ast-g5-phy.h +@@ -30,4 +30,7 @@ + /* platform.S */ + #define CONFIG_DRAM_ECC_SIZE 0x10000000 + ++/* Call board_late_init */ ++#define CONFIG_BOARD_LATE_INIT 1 ++ + #endif /* __AST_G5_PHY_CONFIG_H */ +-- +2.25.1 + diff --git a/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend new file mode 100644 index 000000000..983dc2400 --- /dev/null +++ b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend @@ -0,0 +1,5 @@ +FILESEXTRAPATHS_append_mtjade := "${THISDIR}/${PN}:" + +SRC_URI += " \ + file://0001-aspeed-scu-Switch-PWM-pin-to-GPIO-input-mode.patch \ + " |