47 lines
841 B
C
47 lines
841 B
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* arch/arm/cpu/armv7/rmobile/cpu_info-rcar.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2013,2014 Renesas Electronics Corporation
|
||
|
|
*/
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#define PRR_MASK 0x7fff
|
||
|
|
#define R8A7796_REV_1_0 0x5200
|
||
|
|
#define R8A7796_REV_1_1 0x5210
|
||
|
|
|
||
|
|
static u32 rmobile_get_prr(void)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_RCAR_GEN3
|
||
|
|
return readl(0xFFF00044);
|
||
|
|
#else
|
||
|
|
return readl(0xFF000044);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 rmobile_get_cpu_type(void)
|
||
|
|
{
|
||
|
|
return (rmobile_get_prr() & 0x00007F00) >> 8;
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 rmobile_get_cpu_rev_integer(void)
|
||
|
|
{
|
||
|
|
const u32 prr = rmobile_get_prr();
|
||
|
|
|
||
|
|
if ((prr & PRR_MASK) == R8A7796_REV_1_1)
|
||
|
|
return 1;
|
||
|
|
else
|
||
|
|
return ((prr & 0x000000F0) >> 4) + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 rmobile_get_cpu_rev_fraction(void)
|
||
|
|
{
|
||
|
|
const u32 prr = rmobile_get_prr();
|
||
|
|
|
||
|
|
if ((prr & PRR_MASK) == R8A7796_REV_1_1)
|
||
|
|
return 1;
|
||
|
|
else
|
||
|
|
return prr & 0x0000000F;
|
||
|
|
}
|