mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-15 07:43:07 +00:00
08260efdaf
r8a7796 cpu revision v1.2 has the same information as revision v1.1. This patch fixes revision display at startup to "rev 1.1/1.2". Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> [Marek: Slight update to commit message, spell out the SoC model]
149 lines
3.3 KiB
C
149 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
|
|
* (C) Copyright 2012-2021 Renesas Solutions Corp.
|
|
*/
|
|
#include <common.h>
|
|
#include <cpu_func.h>
|
|
#include <asm/cache.h>
|
|
#include <init.h>
|
|
#include <asm/io.h>
|
|
#include <env.h>
|
|
#include <linux/ctype.h>
|
|
|
|
#ifdef CONFIG_ARCH_CPU_INIT
|
|
int arch_cpu_init(void)
|
|
{
|
|
icache_enable();
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* R-Car Gen3 and Gen4 D-cache is enabled in memmap-gen3.c */
|
|
#ifndef CONFIG_RCAR_64
|
|
#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
|
|
void enable_caches(void)
|
|
{
|
|
dcache_enable();
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_DISPLAY_CPUINFO
|
|
#if !defined(CONFIG_RZA1) && !defined(CONFIG_RZN1)
|
|
__weak const u8 *rzg_get_cpu_name(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static u32 __rmobile_get_cpu_type(void)
|
|
{
|
|
return 0x0;
|
|
}
|
|
u32 rmobile_get_cpu_type(void)
|
|
__attribute__((weak, alias("__rmobile_get_cpu_type")));
|
|
|
|
static u32 __rmobile_get_cpu_rev_integer(void)
|
|
{
|
|
return 0;
|
|
}
|
|
u32 rmobile_get_cpu_rev_integer(void)
|
|
__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
|
|
|
|
static u32 __rmobile_get_cpu_rev_fraction(void)
|
|
{
|
|
return 0;
|
|
}
|
|
u32 rmobile_get_cpu_rev_fraction(void)
|
|
__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
|
|
|
|
/* CPU information table */
|
|
static const struct {
|
|
u16 cpu_type;
|
|
u8 cpu_name[10];
|
|
} rmobile_cpuinfo[] = {
|
|
{ RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
|
|
{ RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
|
|
{ RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
|
|
{ RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
|
|
{ RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
|
|
{ RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
|
|
{ RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
|
|
{ RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
|
|
{ RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
|
|
{ RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
|
|
{ RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
|
|
{ RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
|
|
{ RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
|
|
{ RMOBILE_CPU_TYPE_R8A779A0, "R8A779A0" },
|
|
{ RMOBILE_CPU_TYPE_R8A779F0, "R8A779F0" },
|
|
{ RMOBILE_CPU_TYPE_R8A779G0, "R8A779G0" },
|
|
{ 0x0, "CPU" },
|
|
};
|
|
|
|
static int rmobile_cpuinfo_idx(void)
|
|
{
|
|
int i = 0;
|
|
u32 cpu_type = rmobile_get_cpu_type();
|
|
|
|
for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
|
|
if (rmobile_cpuinfo[i].cpu_type == cpu_type)
|
|
break;
|
|
|
|
return i;
|
|
}
|
|
|
|
static const u8 *get_cpu_name(int idx)
|
|
{
|
|
const u8 *cpu_name = rzg_get_cpu_name();
|
|
|
|
return cpu_name ? cpu_name : rmobile_cpuinfo[idx].cpu_name;
|
|
}
|
|
|
|
#ifdef CONFIG_ARCH_MISC_INIT
|
|
int arch_misc_init(void)
|
|
{
|
|
int i, idx = rmobile_cpuinfo_idx();
|
|
const u8 *cpu_name = get_cpu_name(idx);
|
|
char cpu[10] = { 0 };
|
|
|
|
for (i = 0; i < sizeof(cpu); i++)
|
|
cpu[i] = tolower(cpu_name[i]);
|
|
|
|
env_set("platform", cpu);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int print_cpuinfo(void)
|
|
{
|
|
int i = rmobile_cpuinfo_idx();
|
|
|
|
if (rmobile_cpuinfo[i].cpu_type == RMOBILE_CPU_TYPE_R8A7796 &&
|
|
rmobile_get_cpu_rev_integer() == 1 &&
|
|
rmobile_get_cpu_rev_fraction() == 1) {
|
|
printf("CPU: Renesas Electronics %s rev 1.1/1.2\n", get_cpu_name(i));
|
|
return 0;
|
|
}
|
|
|
|
printf("CPU: Renesas Electronics %s rev %d.%d\n",
|
|
get_cpu_name(i), rmobile_get_cpu_rev_integer(),
|
|
rmobile_get_cpu_rev_fraction());
|
|
|
|
return 0;
|
|
}
|
|
#elif defined(CONFIG_RZA1)
|
|
int print_cpuinfo(void)
|
|
{
|
|
printf("CPU: Renesas Electronics RZ/A1\n");
|
|
return 0;
|
|
}
|
|
#else /* CONFIG_RZN1 */
|
|
int print_cpuinfo(void)
|
|
{
|
|
printf("CPU: Renesas Electronics RZ/N1\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_DISPLAY_CPUINFO */
|