mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
35 lines
666 B
C
35 lines
666 B
C
![]() |
/*
|
||
|
* Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
|
||
|
*
|
||
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
*/
|
||
|
|
||
|
#include <common.h>
|
||
|
#include <asm/arcregs.h>
|
||
|
#include <asm/cache.h>
|
||
|
|
||
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
||
|
int arch_cpu_init(void)
|
||
|
{
|
||
|
timer_init();
|
||
|
|
||
|
/* In simulation (ISS) "CHIPID" and "ARCNUM" are all "ff" */
|
||
|
if ((read_aux_reg(ARC_AUX_IDENTITY) & 0xffffff00) == 0xffffff00)
|
||
|
gd->arch.running_on_hw = 0;
|
||
|
else
|
||
|
gd->arch.running_on_hw = 1;
|
||
|
|
||
|
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
|
||
|
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int arch_early_init_r(void)
|
||
|
{
|
||
|
gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
|
||
|
gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
|
||
|
return 0;
|
||
|
}
|