633e5602aa
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 <jmasson@baylibre.com> Signed-off-by: Julien Stephan <jstephan@baylibre.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org> Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2025 MediaTek Inc.
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* Copyright (C) 2025 BayLibre, SAS
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* Author: Julien Masson <jmasson@baylibre.com>
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* Chris-QJ Chen <chris-qj.chen@mediatek.com>
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*/
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#include <asm/global_data.h>
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#include <asm/system.h>
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#include <dm/uclass.h>
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#include <linux/sizes.h>
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#include <wdt.h>
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DECLARE_GLOBAL_DATA_PTR;
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int dram_init(void)
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{
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int ret;
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ret = fdtdec_setup_memory_banksize();
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if (ret)
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return ret;
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fdtdec_setup_mem_size_base();
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/*
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* Limit gd->ram_top not exceeding SZ_4G. Some periphals like mmc
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* requires DMA buffer allocated below SZ_4G.
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*
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* Note: SZ_1M is for adjusting gd->relocaddr, the reserved memory for
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* u-boot itself.
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*/
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if (gd->ram_base + gd->ram_size >= SZ_4G)
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gd->mon_len = (gd->ram_base + gd->ram_size + SZ_1M) - SZ_4G;
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return 0;
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}
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = gd->ram_base;
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gd->bd->bi_dram[0].size = gd->ram_size;
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return 0;
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}
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int mtk_soc_early_init(void)
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{
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return 0;
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}
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void reset_cpu(void)
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{
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struct udevice *wdt;
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if (IS_ENABLED(CONFIG_PSCI_RESET)) {
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psci_system_reset();
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} else {
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uclass_first_device(UCLASS_WDT, &wdt);
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if (wdt)
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wdt_expire_now(wdt, 0);
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}
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}
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int print_cpuinfo(void)
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{
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printf("CPU: MediaTek MT8188\n");
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return 0;
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}
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