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https://github.com/AsahiLinux/u-boot
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5fd6d4c7b3
Now we use fdtdec_setup_mem_size_base() to get DRAM base from fdt ram node and update gd->ram_base. CFG_SYS_SDRAM_BASE is unused and will be removed. Also, since mt7622 always passes fdt to linux kernel, there's no need to assign value to gd->bd->bi_boot_params. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
54 lines
981 B
C
54 lines
981 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2022 MediaTek Inc.
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* Author: Sam Shih <sam.shih@mediatek.com>
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*/
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#include <fdtdec.h>
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#include <init.h>
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#include <asm/armv8/mmu.h>
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#include <asm/system.h>
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#include <asm/global_data.h>
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#include <asm/u-boot.h>
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#include <linux/sizes.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_mem_size_base();
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if (ret)
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return ret;
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gd->ram_size = get_ram_size((void *)gd->ram_base, SZ_2G);
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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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psci_system_reset();
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}
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static struct mm_region mt7986_mem_map[] = {
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{
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/* DDR */
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.virt = 0x40000000UL,
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.phys = 0x40000000UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
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}, {
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.virt = 0x00000000UL,
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.phys = 0x00000000UL,
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.size = 0x40000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
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PTE_BLOCK_NON_SHARE |
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PTE_BLOCK_PXN | PTE_BLOCK_UXN
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}, {
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0,
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}
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};
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struct mm_region *mem_map = mt7986_mem_map;
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