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efee71ab4d
RAM init on mt7622 based bananapi R64 is broken since v2023.10.
Increasing the mem-map does not help here, so i reduced the maximum
available ram in get_ram_size call from 2G to 1G (board has only 1G).
Fixes: 5fd6d4c7b3ad ("arm: mediatek: retrieve ram_base from dts node for armv8 platform")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
60 lines
1.0 KiB
C
60 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 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 print_cpuinfo(void)
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{
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printf("CPU: MediaTek MT7622\n");
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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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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_1G);
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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 mt7622_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 = 0x40000000UL,
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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 = mt7622_mem_map;
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