mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
26 lines
598 B
C
26 lines
598 B
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#define U8500_BOOTROM_BASE 0x90000000
|
||
|
|
#define U8500_ASIC_ID_LOC_V2 (U8500_BOOTROM_BASE + 0x1DBF4)
|
||
|
|
|
||
|
|
int print_cpuinfo(void)
|
||
|
|
{
|
||
|
|
/* Convert ASIC ID to display string, e.g. 0x8520A0 => DB8520 V1.0 */
|
||
|
|
u32 asicid = readl(U8500_ASIC_ID_LOC_V2);
|
||
|
|
u32 cpu = (asicid >> 8) & 0xffff;
|
||
|
|
u32 rev = asicid & 0xff;
|
||
|
|
|
||
|
|
/* 0xA0 => 0x10 (V1.0) */
|
||
|
|
if (rev >= 0xa0)
|
||
|
|
rev -= 0x90;
|
||
|
|
|
||
|
|
printf("CPU: ST-Ericsson DB%x V%d.%d\n", cpu, rev >> 4, rev & 0xf);
|
||
|
|
return 0;
|
||
|
|
}
|