mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 20:56:16 +09:00
361e13f1d5
This adds a general board file based on MT7623 SoCs from MediaTek. As this u-boot is loaded by MTK proprietary preloader, there is no low level initializtion codes. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Tested-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 MediaTek Inc.
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*/
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#include <common.h>
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#include <linux/io.h>
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#include <linux/sizes.h>
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#include <asm/arch/misc.h>
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#include "preloader.h"
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DECLARE_GLOBAL_DATA_PTR;
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struct boot_argument *preloader_param;
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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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int dram_init(void)
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{
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u32 i;
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if (((size_t)preloader_param >= CONFIG_SYS_SDRAM_BASE) &&
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((size_t)preloader_param % sizeof(size_t) == 0) &&
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preloader_param->magic == BOOT_ARGUMENT_MAGIC &&
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preloader_param->dram_rank_num <=
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ARRAY_SIZE(preloader_param->dram_rank_size)) {
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gd->ram_size = 0;
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for (i = 0; i < preloader_param->dram_rank_num; i++)
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gd->ram_size += preloader_param->dram_rank_size[i];
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} else {
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gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
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SZ_2G);
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}
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return 0;
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}
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int print_cpuinfo(void)
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{
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void __iomem *chipid;
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u32 swver;
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chipid = ioremap(VER_BASE, VER_SIZE);
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swver = readl(chipid + APSW_VER);
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printf("CPU: MediaTek MT7623 E%d\n", (swver & 0xf) + 1);
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return 0;
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}
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