[PATCH v2 2/2] board: mediatek: add mt8195 demo board

[Macpaul Lin <macpaul.lin@mediatek.com>]

From: Fabien Parent <fparent@baylibre.com>

Add mt8195-demo board support.
This demo purpose board uses MediaTek's MT8195 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
---
 MAINTAINERS                         |   1 +
 arch/arm/dts/Makefile               |   1 +
 arch/arm/dts/mt8195-demo.dts        | 109 ++++++++++++++++++++++++++++
 board/mediatek/mt8195/MAINTAINERS   |   6 ++
 board/mediatek/mt8195/Makefile      |   3 +
 board/mediatek/mt8195/mt8195_demo.c |  38 ++++++++++
 configs/mt8195_demo_defconfig       |  89 +++++++++++++++++++++++
 include/configs/mt8195.h            |  34 +++++++++
 8 files changed, 281 insertions(+)
 create mode 100644 arch/arm/dts/mt8195-demo.dts
 create mode 100644 board/mediatek/mt8195/MAINTAINERS
 create mode 100644 board/mediatek/mt8195/Makefile
 create mode 100644 board/mediatek/mt8195/mt8195_demo.c
 create mode 100644 configs/mt8195_demo_defconfig
 create mode 100644 include/configs/mt8195.h

Changes for v2:
 - no change.

diff --git a/MAINTAINERS b/MAINTAINERS
index 5528dd28c3..5aaeeb02cb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -389,6 +389,7 @@ F:	drivers/watchdog/mtk_wdt.c
 F:	drivers/net/mtk_eth.c
 F:	drivers/net/mtk_eth.h
 F:	drivers/reset/reset-mediatek.c
+F:	include/configs/mt8195.h
 F:	tools/mtk_image.c
 F:	tools/mtk_image.h
 F:	tools/mtk_nand_headers.c
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 791838733c..994f7ebcc0 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1271,6 +1271,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt7986a-emmc-rfb.dtb \
 	mt7986b-emmc-rfb.dtb \
 	mt8183-pumpkin.dtb \
+	mt8195-demo.dtb \
 	mt8512-bm1-emmc.dtb \
 	mt8516-pumpkin.dtb \
 	mt8518-ap1-emmc.dtb
diff --git a/arch/arm/dts/mt8195-demo.dts b/arch/arm/dts/mt8195-demo.dts
new file mode 100644
index 0000000000..bd0952b248
--- /dev/null
+++ b/arch/arm/dts/mt8195-demo.dts
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2022 MediaTek Inc.
+ * Copyright (C) 2022 BayLibre SAS.
+ * Author: Macpaul Lin <macpaul.lin@mediatek.com>
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+/dts-v1/;
+
+#include <config.h>
+#include "mt8195.dtsi"
+
+/ {
+	model = "MediaTek MT8195 demo board";
+	compatible = "mediatek,mt8195-demo", "mediatek,mt8195";
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0 0x40000000 0 0x80000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
+		bl31_secmon_reserved: secmon@54600000 {
+			no-map;
+			reg = <0 0x54600000 0x0 0x200000>;
+		};
+
+		/* 12 MiB reserved for OP-TEE (BL32)
+		 * +-----------------------+ 0x43e0_0000
+		 * |      SHMEM 2MiB       |
+		 * +-----------------------+ 0x43c0_0000
+		 * |        | TA_RAM  8MiB |
+		 * + TZDRAM +--------------+ 0x4340_0000
+		 * |        | TEE_RAM 2MiB |
+		 * +-----------------------+ 0x4320_0000
+		 */
+		optee_reserved: optee@43200000 {
+			no-map;
+			reg = <0 0x43200000 0 0x00c00000>;
+		};
+	};
+
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	reg_1p8v: regulator-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+};
+
+&watchdog {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&mmc0 {
+	bus-width = <4>;
+	max-frequency = <200000000>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	cap-mmc-hw-reset;
+	vmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_1p8v>;
+	non-removable;
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+};
+
+&ssusb {
+	mediatek,force-vbus;
+	maximum-speed = "high-speed";
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&xhci0 {
+	status = "okay";
+};
+
+&xhci3 {
+	status = "okay";
+};
diff --git a/board/mediatek/mt8195/MAINTAINERS b/board/mediatek/mt8195/MAINTAINERS
new file mode 100644
index 0000000000..01fa25115d
--- /dev/null
+++ b/board/mediatek/mt8195/MAINTAINERS
@@ -0,0 +1,6 @@
+MT8195 Demo
+M:	Macpaul Lin <macpaul.lin@mediatek.com>
+S:	Maintained
+F:	board/mediatek/mt8195
+F:	include/configs/mt8195.h
+F:	configs/mt8195_demo_defconfig
diff --git a/board/mediatek/mt8195/Makefile b/board/mediatek/mt8195/Makefile
new file mode 100644
index 0000000000..7e94a87aea
--- /dev/null
+++ b/board/mediatek/mt8195/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:	GPL-2.0
+
+obj-y += mt8195_demo.o
diff --git a/board/mediatek/mt8195/mt8195_demo.c b/board/mediatek/mt8195/mt8195_demo.c
new file mode 100644
index 0000000000..b95f5cf28d
--- /dev/null
+++ b/board/mediatek/mt8195/mt8195_demo.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 BayLibre SAS
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <net.h>
+#include <asm/io.h>
+
+int board_init(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	if (CONFIG_IS_ENABLED(USB_GADGET)) {
+		ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, 0, &dev);
+		if (ret) {
+			pr_err("%s: Cannot find USB device\n", __func__);
+			return ret;
+		}
+	}
+
+	if (CONFIG_IS_ENABLED(USB_ETHER))
+		usb_ether_init();
+
+	printf("Disabling WDT\n");
+	writel(0, 0x10007000);
+
+	printf("Enabling SCP SRAM\n");
+	for (unsigned int val = 0xFFFFFFFF; val != 0U;) {
+		val = val >> 1;
+		writel(val, 0x1072102C);
+	}
+
+	return 0;
+}
diff --git a/configs/mt8195_demo_defconfig b/configs/mt8195_demo_defconfig
new file mode 100644
index 0000000000..5b075b1a27
--- /dev/null
+++ b/configs/mt8195_demo_defconfig
@@ -0,0 +1,89 @@
+CONFIG_ARM=y
+CONFIG_COUNTER_FREQUENCY=13000000
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x1000
+CONFIG_ENV_OFFSET=0x0
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="mt8195-demo"
+CONFIG_TARGET_MT8195=y
+CONFIG_DEBUG_UART_BASE=0x11001100
+CONFIG_DEBUG_UART_CLOCK=26000000
+# CONFIG_PSCI_RESET is not set
+CONFIG_SYS_LOAD_ADDR=0x4c000000
+CONFIG_DEBUG_UART=y
+CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_FIT=y
+# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="run distro_bootcmd"
+CONFIG_DEFAULT_FDT_FILE="mt8195-demo"
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_MEMORY is not set
+CONFIG_CMD_CLK=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPT=y
+# CONFIG_RANDOM_UUID is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_BLOCK_CACHE is not set
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_ISO_PARTITION=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_MMC_ENV_PART=2
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_ENV_IMPORT_FDT=y
+CONFIG_DEVRES=y
+CONFIG_CLK=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x4d000000
+CONFIG_FASTBOOT_BUF_SIZE=0x8000000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
+CONFIG_FASTBOOT_MMC_BOOT_SUPPORT=y
+# CONFIG_INPUT is not set
+# CONFIG_MMC_QUIRKS is not set
+CONFIG_MMC_MTK=y
+CONFIG_PHY=y
+CONFIG_PHY_MTK_TPHY=y
+CONFIG_BAUDRATE=921600
+CONFIG_DM_SERIAL=y
+CONFIG_DEBUG_UART_ANNOUNCE=y
+CONFIG_MTK_SERIAL=y
+CONFIG_USB=y
+CONFIG_DM_USB_GADGET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MTK=y
+CONFIG_USB_MTU3=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_KEYBOARD=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x0e8d
+CONFIG_USB_GADGET_PRODUCT_NUM=0x201c
+CONFIG_USB_ETHER=y
+CONFIG_WDT=y
+CONFIG_WDT_MTK=y
+CONFIG_OF_LIBFDT_OVERLAY=y
diff --git a/include/configs/mt8195.h b/include/configs/mt8195.h
new file mode 100644
index 0000000000..22bcf87794
--- /dev/null
+++ b/include/configs/mt8195.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration for MT8195 based boards
+ *
+ * Copyright (C) 2022 MediaTek Inc.
+ * Copyright (C) 2022 BayLibre, SAS
+ * Author: Fabien Parent <macpaul.lin@mediatek.com>
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+#ifndef __MT8195_H
+#define __MT8195_H
+
+#include <linux/sizes.h>
+
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE	-4
+#define CONFIG_SYS_NS16550_MEM32
+#define CONFIG_SYS_NS16550_COM1		0x11002000
+#define CONFIG_SYS_NS16550_CLK		26000000
+
+/* Environment settings */
+#include <config_distro_bootcmd.h>
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0)
+
+#if !defined(CONFIG_EXTRA_ENV_SETTINGS)
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"scriptaddr=0x40000000\0" \
+	BOOTENV
+#endif
+
+#endif
-- 
2.18.0