1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net> 4 */ 5 6#include <common.h> 7#include <init.h> 8#include <asm/io.h> 9 10#define U8500_BOOTROM_BASE 0x90000000 11#define U8500_ASIC_ID_LOC_V2 (U8500_BOOTROM_BASE + 0x1DBF4) 12 13int print_cpuinfo(void) 14{ 15 /* Convert ASIC ID to display string, e.g. 0x8520A0 => DB8520 V1.0 */ 16 u32 asicid = readl(U8500_ASIC_ID_LOC_V2); 17 u32 cpu = (asicid >> 8) & 0xffff; 18 u32 rev = asicid & 0xff; 19 20 /* 0xA0 => 0x10 (V1.0) */ 21 if (rev >= 0xa0) 22 rev -= 0x90; 23 24 printf("CPU: ST-Ericsson DB%x V%d.%d\n", cpu, rev >> 4, rev & 0xf); 25 return 0; 26} 27