From: Julien Masson <[email protected]> This adds basic support for MediaTek MT8188 SoC.
Add watchdog support by adding upstream compatible string. Add tphy support by adding "mediatek,generic-tphy-v2" compatible string in arch/arm/dts/mt8188-u-boot.dtsi Signed-off-by: Julien Masson <[email protected]> Signed-off-by: Julien Stephan <[email protected]> --- MAINTAINERS | 1 + arch/arm/dts/mt8188-u-boot.dtsi | 10 +++++ arch/arm/mach-mediatek/Kconfig | 11 +++++- arch/arm/mach-mediatek/Makefile | 1 + arch/arm/mach-mediatek/mt8188/Makefile | 3 ++ arch/arm/mach-mediatek/mt8188/init.c | 69 ++++++++++++++++++++++++++++++++++ drivers/watchdog/mtk_wdt.c | 1 + 7 files changed, 95 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index b43dae882b3ea33c2cd745bd3759e3f4d97abc80..5b52d2fe17506d2659be9016a7ca639062332ae9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -415,6 +415,7 @@ M: Chunfeng Yun <[email protected]> M: Igor Belwon <[email protected]> R: GSS_MTK_Uboot_upstream <[email protected]> S: Maintained +F: arch/arm/dts/mt* F: arch/arm/mach-mediatek/ F: arch/arm/include/asm/arch-mediatek/ F: board/mediatek/ diff --git a/arch/arm/dts/mt8188-u-boot.dtsi b/arch/arm/dts/mt8188-u-boot.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..6d1b2ab82da1c95a49b8a693eb0f854ab913a26b --- /dev/null +++ b/arch/arm/dts/mt8188-u-boot.dtsi @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (c) 2025 Baylibre SAS. + * Author: Julien Masson <[email protected]> + */ + +&u3phy0 { + compatible = "mediatek,mt8188-tphy", "mediatek,generic-tphy-v3", + "mediatek,generic-tphy-v2"; +}; diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig index e54c456aec0bda3bc1c06d0780d74e96a659531d..f7ef17e0203c74a5c18630636f978cbcfb948089 100644 --- a/arch/arm/mach-mediatek/Kconfig +++ b/arch/arm/mach-mediatek/Kconfig @@ -84,6 +84,15 @@ config TARGET_MT8183 SD and MMC cards, UFS, PWM, I2C, I2S, S/PDIF, and several LPDDR3 and LPDDR4 options. +config TARGET_MT8188 + bool "MediaTek MT8188 SoC" + select ARM64 + help + The MediaTek MT8188 is a ARM64-based SoC with a dual-core Cortex-A78 + cluster and a six-core Cortex-A55 cluster. It includes UART, SPI, + USB3.0 dual role, SD and MMC cards, UFS, PWM, I2C, I2S, S/PDIF, and + several LPDDR3 and LPDDR4 options. + config TARGET_MT8365 bool "MediaTek MT8365 SoC" select ARM64 @@ -157,7 +166,7 @@ config SYS_CONFIG_NAME config MTK_BROM_HEADER_INFO string default "media=nor" if TARGET_MT8518 || TARGET_MT8512 || TARGET_MT7629 - default "media=emmc" if TARGET_MT8516 || TARGET_MT8365 || TARGET_MT8183 + default "media=emmc" if TARGET_MT8516 || TARGET_MT8365 || TARGET_MT8183 || TARGET_MT8188 default "lk=1" if TARGET_MT7623 config MTK_TZ_MOVABLE diff --git a/arch/arm/mach-mediatek/Makefile b/arch/arm/mach-mediatek/Makefile index c11d6ad8aed6e411636fd8aea1b1eca6ba4780a8..44591bed6fa0c57a026fa0b71f5e46911ca18a50 100644 --- a/arch/arm/mach-mediatek/Makefile +++ b/arch/arm/mach-mediatek/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_TARGET_MT7986) += mt7986/ obj-$(CONFIG_TARGET_MT7987) += mt7987/ obj-$(CONFIG_TARGET_MT7988) += mt7988/ obj-$(CONFIG_TARGET_MT8183) += mt8183/ +obj-$(CONFIG_TARGET_MT8188) += mt8188/ obj-$(CONFIG_TARGET_MT8365) += mt8365/ obj-$(CONFIG_TARGET_MT8512) += mt8512/ obj-$(CONFIG_TARGET_MT8516) += mt8516/ diff --git a/arch/arm/mach-mediatek/mt8188/Makefile b/arch/arm/mach-mediatek/mt8188/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..886ab7e4eb9fa4533d51995b1042fe2f1febdc33 --- /dev/null +++ b/arch/arm/mach-mediatek/mt8188/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-y += init.o diff --git a/arch/arm/mach-mediatek/mt8188/init.c b/arch/arm/mach-mediatek/mt8188/init.c new file mode 100644 index 0000000000000000000000000000000000000000..3389c03b06006e8130b4ce448d5dcfb8f103c28f --- /dev/null +++ b/arch/arm/mach-mediatek/mt8188/init.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 MediaTek Inc. + * Copyright (C) 2025 BayLibre, SAS + * Author: Julien Masson <[email protected]> + */ + +#include <asm/global_data.h> +#include <asm/system.h> +#include <dm/uclass.h> +#include <linux/sizes.h> +#include <wdt.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + int ret; + + ret = fdtdec_setup_memory_banksize(); + if (ret) + return ret; + + fdtdec_setup_mem_size_base(); + + /* + * Limit gd->ram_top not exceeding SZ_4G. Some periphals like mmc + * requires DMA buffer allocated below SZ_4G. + * + * Note: SZ_1M is for adjusting gd->relocaddr, the reserved memory for + * u-boot itself. + */ + if (gd->ram_base + gd->ram_size >= SZ_4G) + gd->mon_len = (gd->ram_base + gd->ram_size + SZ_1M) - SZ_4G; + + return 0; +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = gd->ram_base; + gd->bd->bi_dram[0].size = gd->ram_size; + + return 0; +} + +int mtk_soc_early_init(void) +{ + return 0; +} + +void reset_cpu(void) +{ + struct udevice *wdt; + + if (IS_ENABLED(CONFIG_PSCI_RESET)) { + psci_system_reset(); + } else { + uclass_first_device(UCLASS_WDT, &wdt); + if (wdt) + wdt_expire_now(wdt, 0); + } +} + +int print_cpuinfo(void) +{ + printf("CPU: MediaTek MT8188\n"); + return 0; +} diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index 706deb9da84626d8935a30d9cf6831289804d99d..4d4ab4cbe903e867f834427dbff4d9ce44efe784 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -145,6 +145,7 @@ static const struct udevice_id mtk_wdt_ids[] = { { .compatible = "mediatek,wdt"}, { .compatible = "mediatek,mt6589-wdt"}, { .compatible = "mediatek,mt7986-wdt" }, + { .compatible = "mediatek,mt8188-wdt" }, {} }; -- 2.50.1
