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https://github.com/AsahiLinux/u-boot
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fa437430ad
RK3399 support DDR3, LPDDR3, DDR4 sdram, this patch is porting from coreboot, support 4GB lpddr3 in this version. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Added rockchip: tag: Signed-off-by: Simon Glass <sjg@chromium.org>
45 lines
938 B
C
45 lines
938 B
C
/*
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* Copyright (c) 2016 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/armv8/mmu.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#define GRF_EMMCCORE_CON11 0xff77f02c
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static struct mm_region rk3399_mem_map[] = {
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{
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.virt = 0x0UL,
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.phys = 0x0UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_INNER_SHARE
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}, {
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.virt = 0xf0000000UL,
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.phys = 0xf0000000UL,
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.size = 0x10000000UL,
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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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/* List terminator */
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0,
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}
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};
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struct mm_region *mem_map = rk3399_mem_map;
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int arch_cpu_init(void)
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{
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/* We do some SoC one time setting here. */
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/* Emmc clock generator: disable the clock multipilier */
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rk_clrreg(GRF_EMMCCORE_CON11, 0x0ff);
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printf("time %x, %x\n", readl(0xff8680a8), readl(0xff8680ac));
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return 0;
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}
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