meta-ampere:u-boot: Add GPIO configuration for DVT boards
Mt.Jade DVT hardware requires some GPIO setting so that the board can
work well. This commit updates platform init function in u-boot to set
required GPIO pins.
Tested:
1. Verify below GPIOs set as input in Linux:
- S0_I2C9_ALERT_L (GPIOM4)
- S1_I2C9_ALERT_L (GPIOM5)
- GPIO_BMC_VGA_FRONT_PRES_L (GPIOQ7)
- GPIO_BMC_EXT_HIGHTEMP_L
- GPIO_S0_VRHOT_L
- GPIO_S1_VRHOT_L
- GPIO_BMC_PCA9554_INT_L
2. verify below GPIOs set as output high in Linux
- GPIO_BMC_I2C6_RESET_L
- GPIO_BMC_JTAG_SRST_L
- GPIO_BMC_VR_PMBUS_SEL_L
- BMC_GPIOR2_EXT_HIGHTEMP_L
- BMC_VGA_SEL
Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Change-Id: I8b76387ec05c546c34c89f6f5881da3b7955a805
diff --git a/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0006-aspeed-support-Mt.Jade-platform-init.patch b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0006-aspeed-support-Mt.Jade-platform-init.patch
new file mode 100644
index 0000000..02a4783
--- /dev/null
+++ b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0006-aspeed-support-Mt.Jade-platform-init.patch
@@ -0,0 +1,175 @@
+From 2c9ab641f2a7ea146a468ec4301c416010badff7 Mon Sep 17 00:00:00 2001
+From: Chanh Nguyen <chanh@os.amperecomputing.com>
+Date: Wed, 17 Mar 2021 14:11:18 +0700
+Subject: [PATCH] aspeed: support Mt.Jade platform init
+
+This commit adds platform init for Mt.Jade platform.
+
+Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
+Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
+---
+ arch/arm/include/asm/arch-aspeed/ast_scu.h | 1 +
+ arch/arm/include/asm/arch-aspeed/regs-scu.h | 4 ++
+ arch/arm/mach-aspeed/ast-scu.c | 18 +++++
+ board/aspeed/ast-g5/ast-g5.c | 76 +++++++++++++++++++++
+ include/configs/ast-g5-phy.h | 3 +
+ 5 files changed, 102 insertions(+)
+
+diff --git a/arch/arm/include/asm/arch-aspeed/ast_scu.h b/arch/arm/include/asm/arch-aspeed/ast_scu.h
+index f5c9126ec0..e2d06ccc1f 100644
+--- a/arch/arm/include/asm/arch-aspeed/ast_scu.h
++++ b/arch/arm/include/asm/arch-aspeed/ast_scu.h
+@@ -46,5 +46,6 @@ 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);
++extern void ast_scu_switch_espi_to_gpio_mode(void);
+
+ #endif
+diff --git a/arch/arm/include/asm/arch-aspeed/regs-scu.h b/arch/arm/include/asm/arch-aspeed/regs-scu.h
+index b714fa9234..704ad75b4e 100644
+--- a/arch/arm/include/asm/arch-aspeed/regs-scu.h
++++ b/arch/arm/include/asm/arch-aspeed/regs-scu.h
+@@ -76,6 +76,7 @@
+ #define AST_SCU_FUN_PIN_CTRL7 0xA0 /* Multi-function Pin Control#7*/
+ #define AST_SCU_FUN_PIN_CTRL8 0xA4 /* Multi-function Pin Control#8*/
+ #define AST_SCU_FUN_PIN_CTRL9 0xA8 /* Multi-function Pin Control#9*/
++#define AST_SCU_FUN_PIN_CTRL10 0xAC /* Multi-function Pin Control#10*/
+ #define AST_SCU_MAC_CLK_DELAY_100M 0xB8 /* MAC interface clock delay 100M setting*/
+ #define AST_SCU_MAC_CLK_DELAY_10M 0xBC /* MAC interface clock delay 10M setting*/
+ #define AST_SCU_PWR_SAVING_EN 0xC0 /* Power Saving Wakeup Enable*/
+@@ -921,6 +922,9 @@
+ #define SCU_FUN_PIN_ROMA19 (0x1 << 1)
+ #define SCU_FUN_PIN_ROMA18 (0x1)
+
++/* AST_SCU_FUN_PIN_CTRL10 0xAC - Multi-function Pin Control#10 */
++#define SCU_FUN_PIN_ESPI(x) (0x1 << (x))
++
+ /* AST_SCU_PWR_SAVING_EN 0xC0 - Power Saving Wakeup Enable */
+ /* AST_SCU_PWR_SAVING_CTRL 0xC4 - Power Saving Wakeup Control */
+ /* AST_SCU_HW_STRAP2 0xD0 - Haardware strapping register set 2 */
+diff --git a/arch/arm/mach-aspeed/ast-scu.c b/arch/arm/mach-aspeed/ast-scu.c
+index c7ab66415f..71c043d3e8 100644
+--- a/arch/arm/mach-aspeed/ast-scu.c
++++ b/arch/arm/mach-aspeed/ast-scu.c
+@@ -554,3 +554,21 @@ void ast_scu_get_who_init_dram(void)
+ break;
+ }
+ }
++
++void ast_scu_switch_espi_to_gpio_mode(void)
++{
++ /*
++ * This Function to set the ESPI pin to GPIO mode
++ * This allow to setting AC5_READY
++ */
++ ast_scu_write(ast_scu_read(AST_SCU_FUN_PIN_CTRL10) &
++ ~SCU_FUN_PIN_ESPI(0) &
++ ~SCU_FUN_PIN_ESPI(1) &
++ ~SCU_FUN_PIN_ESPI(2) &
++ ~SCU_FUN_PIN_ESPI(3) &
++ ~SCU_FUN_PIN_ESPI(4) &
++ ~SCU_FUN_PIN_ESPI(5) &
++ ~SCU_FUN_PIN_ESPI(6) &
++ ~SCU_FUN_PIN_ESPI(7),
++ AST_SCU_FUN_PIN_CTRL10);
++}
+diff --git a/board/aspeed/ast-g5/ast-g5.c b/board/aspeed/ast-g5/ast-g5.c
+index ed83d65136..edf7f050a8 100644
+--- a/board/aspeed/ast-g5/ast-g5.c
++++ b/board/aspeed/ast-g5/ast-g5.c
+@@ -163,3 +163,79 @@ void hw_watchdog_reset(void)
+ writel(0x4755, AST_WDT2_BASE + 0x08);
+ }
+ #endif /* CONFIG_WATCHDOG */
++
++#ifdef CONFIG_BOARD_EARLY_INIT_F
++int board_gpio_init(void)
++{
++ int pgood = 0;
++
++ /* GPIO_BMC_PSU_PG */
++ pgood = gpio_get_value(44);
++ /* GPIO_BMC_OCP_AUX_PWREN */
++ gpio_direction_output(139, 1);
++
++ if (pgood)
++ {
++ /* GPIO_BMC_SYS_ATX_PSON_L */
++ gpio_direction_output(42, 0);
++ /* GPIO_BMC_OCP_MAIN_PWREN */
++ gpio_direction_output(140, 1);
++ }
++ else
++ {
++ /* GPIO_BMC_SYS_ATX_PSON_L */
++ gpio_direction_output(42, 1);
++ /* GPIO_BMC_OCP_MAIN_PWREN */
++ gpio_direction_output(140, 0);
++ }
++
++ /* GPIOH7 GPIO_BMC_I2C6_RESET_L */
++ gpio_direction_output(63, 1);
++
++ /* GPIOM4 S0_I2C9_ALERT_L */
++ gpio_direction_input(100);
++
++ /* GPIOM5 S1_I2C9_ALERT_L */
++ gpio_direction_input(101);
++
++ /* GPIOQ7 GPIO_BMC_VGA_FRONT_PRES_L */
++ gpio_direction_input(135);
++
++ /* GPIOR1 GPIO_BMC_JTAG_SRST_L */
++ gpio_direction_output(137, 1);
++
++ /* BMC_GPIOR2_EXT_HIGHTEMP_L */
++ gpio_direction_output(138, 1);
++
++ /* GPIOS0 GPIO_S0_VRHOT_L */
++ gpio_direction_input(144);
++
++ /* GPIOS1 GPIO_S1_VRHOT_L */
++ gpio_direction_input(145);
++
++ /* GPIOS5 GPIO_BMC_VR_PMBUS_SEL_L */
++ gpio_direction_output(149, 1);
++
++ /* GPIOY3 BMC_VGA_SEL */
++ gpio_direction_output(195, 1);
++
++ /* GPIOAC1 GPIO_BMC_PCA9554_INT_L */
++ gpio_direction_input(225);
++
++ /* GPIO_BMC_READY */
++ gpio_direction_output(229, 1);
++
++ /* Enable I2C4 device access */
++ gpio_direction_output(194, 1);
++
++ return 0;
++}
++
++int board_early_init_f(void)
++{
++ ast_scu_switch_espi_to_gpio_mode();
++ board_gpio_init();
++
++ return 0;
++}
++#endif /* CONFIG_BOARD_EARLY_INIT_F */
+diff --git a/include/configs/ast-g5-phy.h b/include/configs/ast-g5-phy.h
+index ea7c66716a..a5e389616b 100644
+--- a/include/configs/ast-g5-phy.h
++++ b/include/configs/ast-g5-phy.h
+@@ -34,4 +34,7 @@
+ #define CONFIG_BOARD_LATE_INIT 1
+ #define CONFIG_CMD_GPIO 1 /* Enable gpio command in shell */
+
++/* Call board_early_init_f */
++#define CONFIG_BOARD_EARLY_INIT_F 1
++
+ #endif /* __AST_G5_PHY_CONFIG_H */
+--
+2.17.1
+