meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed/0006-aspeed-support-Mt.Jade-platform-init.patch

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