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https://github.com/AsahiLinux/u-boot
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84335544ea
Add basic support for the Nuvoton NPCM750 EVB (Poleg). Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
48 lines
761 B
C
48 lines
761 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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*
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* Copyright (c) 2021 Nuvoton Technology Corp.
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/io.h>
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#include <asm/arch/gcr.h>
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#include <asm/mach-types.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_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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struct npcm_gcr *gcr = (struct npcm_gcr *)NPCM_GCR_BA;
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int ramsize = (readl(&gcr->intcr3) >> 8) & 0x7;
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switch (ramsize) {
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case 0:
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gd->ram_size = 0x08000000; /* 128 MB. */
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break;
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case 1:
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gd->ram_size = 0x10000000; /* 256 MB. */
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break;
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case 2:
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gd->ram_size = 0x20000000; /* 512 MB. */
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break;
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case 3:
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gd->ram_size = 0x40000000; /* 1024 MB. */
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break;
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case 4:
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gd->ram_size = 0x80000000; /* 2048 MB. */
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break;
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default:
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break;
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}
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return 0;
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}
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