mirror of
https://github.com/brain-hackers/u-boot-brain
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26 lines
598 B
C
26 lines
598 B
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net>
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*/
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#include <common.h>
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#include <asm/io.h>
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#define U8500_BOOTROM_BASE 0x90000000
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#define U8500_ASIC_ID_LOC_V2 (U8500_BOOTROM_BASE + 0x1DBF4)
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int print_cpuinfo(void)
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{
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/* Convert ASIC ID to display string, e.g. 0x8520A0 => DB8520 V1.0 */
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u32 asicid = readl(U8500_ASIC_ID_LOC_V2);
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u32 cpu = (asicid >> 8) & 0xffff;
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u32 rev = asicid & 0xff;
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/* 0xA0 => 0x10 (V1.0) */
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if (rev >= 0xa0)
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rev -= 0x90;
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printf("CPU: ST-Ericsson DB%x V%d.%d\n", cpu, rev >> 4, rev & 0xf);
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return 0;
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}
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