board: mediatek: add MT8390 EVK board support

This adds support for the MT8390 EVK board with the following
features enabled/tested: Boot, UART, Watchdog and MMC.

MT8390 is based on MT8188.

Signed-off-by: Julien Masson <jmasson@baylibre.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>

diff --git a/board/mediatek/mt8390_evk/MAINTAINERS b/board/mediatek/mt8390_evk/MAINTAINERS
new file mode 100644 (file)
index 0000000..d46b8b2
--- /dev/null
+++ b/board/mediatek/mt8390_evk/MAINTAINERS
@@ -0,0 +1,6 @@
+MT8390 EVK
+M:     Julien Masson <jmasson@baylibre.com>
+M:     Macpaul Lin <Macpaul.Lin@mediatek.com>
+S:     Maintained
+F:     board/mediatek/mt8390_evk/
+F:     configs/mt8390_evk_defconfig

diff --git a/board/mediatek/mt8390_evk/Makefile b/board/mediatek/mt8390_evk/Makefile
new file mode 100644 (file)
index 0000000..a26d468
--- /dev/null
+++ b/board/mediatek/mt8390_evk/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:     GPL-2.0
+
+obj-y += mt8390_evk.o

diff --git a/board/mediatek/mt8390_evk/mt8390_evk.c b/board/mediatek/mt8390_evk/mt8390_evk.c
new file mode 100644 (file)
index 0000000..1ca4036
--- /dev/null
+++ b/board/mediatek/mt8390_evk/mt8390_evk.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026 BayLibre SAS
+ * Author: Julien Masson <jmasson@baylibre.com>
+ */
+
+#include <linux/types.h>
+#include <asm/armv8/mmu.h>
+
+int board_init(void)
+{
+       return 0;
+}
+
+static struct mm_region mt8390_evk_mem_map[] = {
+       {
+               /* DDR */
+               .virt = 0x40000000UL,
+               .phys = 0x40000000UL,
+               .size = 0x200000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
+       }, {
+               .virt = 0x00000000UL,
+               .phys = 0x00000000UL,
+               .size = 0x20000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+                        PTE_BLOCK_NON_SHARE |
+                        PTE_BLOCK_PXN | PTE_BLOCK_UXN
+       }, {
+               0,
+       }
+};
+
+struct mm_region *mem_map = mt8390_evk_mem_map;

diff --git a/configs/mt8390_evk_defconfig b/configs/mt8390_evk_defconfig
new file mode 100644 (file)
index 0000000..9bc1d92
--- /dev/null
+++ b/configs/mt8390_evk_defconfig
@@ -0,0 +1,27 @@
+CONFIG_ARM=y
+CONFIG_SYS_BOARD="mt8390_evk"
+CONFIG_COUNTER_FREQUENCY=13000000
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_TEXT_BASE=0x4c000000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="mediatek/mt8390-genio-700-evk"
+CONFIG_TARGET_MT8188=y
+CONFIG_SYS_LOAD_ADDR=0x4c000000
+CONFIG_IDENT_STRING="mt8390-evk"
+CONFIG_CMD_CLK=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_OF_UPSTREAM=y
+CONFIG_CLK=y
+CONFIG_MMC_MTK=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT8188=y
+CONFIG_BAUDRATE=921600
+CONFIG_DM_SERIAL=y
+CONFIG_MTK_SERIAL=y
+CONFIG_WDT=y
+CONFIG_WDT_MTK=y
+# CONFIG_RANDOM_UUID is not set