[u-boot.git] / arch / arm / mach-rmobile / cpu_info.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2012 Nobuhiro Iwamatsu <[email protected]>
 * (C) Copyright 2012 Renesas Solutions Corp.
 */
#include <common.h>
#include <cpu_func.h>
#include <asm/cache.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 D-cache is enabled in memmap-gen3.c */
#ifndef CONFIG_RCAR_GEN3
#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
void enable_caches(void)
{
	dcache_enable();
}
#endif
#endif

#ifdef CONFIG_DISPLAY_CPUINFO
#ifndef CONFIG_RZA1
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 infomation table */
static const struct {
	u16 cpu_type;
	u8 cpu_name[10];
} rmobile_cpuinfo[] = {
	{ RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
	{ 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" },
	{ 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;
}

#ifdef CONFIG_ARCH_MISC_INIT
int arch_misc_init(void)
{
	int i, idx = rmobile_cpuinfo_idx();
	char cpu[10] = { 0 };

	for (i = 0; i < sizeof(cpu); i++)
		cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);

	env_set("platform", cpu);

	return 0;
}
#endif

int print_cpuinfo(void)
{
	int i = rmobile_cpuinfo_idx();

	printf("CPU: Renesas Electronics %s rev %d.%d\n",
		rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
		rmobile_get_cpu_rev_fraction());

	return 0;
}
#else
int print_cpuinfo(void)
{
	printf("CPU: Renesas Electronics RZ/A1\n");
	return 0;
}
#endif
#endif /* CONFIG_DISPLAY_CPUINFO */
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
4fb44e22 NI	2	/*
	3	* (C) Copyright 2012 Nobuhiro Iwamatsu <[email protected]>
	4	* (C) Copyright 2012 Renesas Solutions Corp.
4fb44e22 NI	5	*/
4fb44e22 NI	6	#include <common.h>
9edefc27	7	#include <cpu_func.h>
90526e9f	8	#include <asm/cache.h>
4fb44e22	9	#include <asm/io.h>
9fb625ce	10	#include <env.h>
00e4b57e	11	#include <linux/ctype.h>
4fb44e22 NI	12
	13	#ifdef CONFIG_ARCH_CPU_INIT
	14	int arch_cpu_init(void)
	15	{
	16	icache_enable();
	17	return 0;
	18	}
	19	#endif
	20
5055a4e9 TK	21	/* R-Car Gen3 D-cache is enabled in memmap-gen3.c */
5055a4e9 TK	22	#ifndef CONFIG_RCAR_GEN3
10015025	23	#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
4fb44e22 NI	24	void enable_caches(void)
	25	{
	26	dcache_enable();
	27	}
	28	#endif
e5cb6bd9	29	#endif
4fb44e22 NI	30
4fb44e22 NI	31	#ifdef CONFIG_DISPLAY_CPUINFO
35295964	32	#ifndef CONFIG_RZA1
1cdf2482	33	static u32 __rmobile_get_cpu_type(void)
4fb44e22	34	{
1cdf2482	35	return 0x0;
4fb44e22	36	}
1cdf2482 NI	37	u32 rmobile_get_cpu_type(void)
1cdf2482 NI	38	__attribute__((weak, alias("__rmobile_get_cpu_type")));
4fb44e22	39
4f007b83	40	static u32 __rmobile_get_cpu_rev_integer(void)
4fb44e22	41	{
1cdf2482	42	return 0;
4fb44e22	43	}
4f007b83 TK	44	u32 rmobile_get_cpu_rev_integer(void)
	45	__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
	46
	47	static u32 __rmobile_get_cpu_rev_fraction(void)
	48	{
	49	return 0;
	50	}
	51	u32 rmobile_get_cpu_rev_fraction(void)
	52	__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
4fb44e22	53
73ff6801 NI	54	/* CPU infomation table */
	55	static const struct {
	56	u16 cpu_type;
	57	u8 cpu_name[10];
	58	} rmobile_cpuinfo[] = {
262e9156 MV	59	{ RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
	60	{ RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
	61	{ RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
	62	{ RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
	63	{ RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
	64	{ RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
	65	{ RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
	66	{ RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
	67	{ RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
f295a569	68	{ RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
5cb19e7a	69	{ RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
57ede1a3	70	{ RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
a0410a6f	71	{ RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
1154541a	72	{ RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
73ff6801 NI	73	{ 0x0, "CPU" },
	74	};
	75
00e4b57e	76	static int rmobile_cpuinfo_idx(void)
4fb44e22	77	{
73ff6801 NI	78	int i = 0;
73ff6801 NI	79	u32 cpu_type = rmobile_get_cpu_type();
00e4b57e MV	80
	81	for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
	82	if (rmobile_cpuinfo[i].cpu_type == cpu_type)
73ff6801	83	break;
00e4b57e MV	84
	85	return i;
	86	}
	87
	88	#ifdef CONFIG_ARCH_MISC_INIT
	89	int arch_misc_init(void)
	90	{
	91	int i, idx = rmobile_cpuinfo_idx();
	92	char cpu[10] = { 0 };
	93
	94	for (i = 0; i < sizeof(cpu); i++)
	95	cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
	96
	97	env_set("platform", cpu);
	98
	99	return 0;
	100	}
	101	#endif
	102
	103	int print_cpuinfo(void)
	104	{
	105	int i = rmobile_cpuinfo_idx();
	106
	107	printf("CPU: Renesas Electronics %s rev %d.%d\n",
	108	rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
	109	rmobile_get_cpu_rev_fraction());
	110
4fb44e22 NI	111	return 0;
4fb44e22 NI	112	}
35295964 CB	113	#else
	114	int print_cpuinfo(void)
	115	{
	116	printf("CPU: Renesas Electronics RZ/A1\n");
	117	return 0;
	118	}
	119	#endif
1cdf2482	120	#endif /* CONFIG_DISPLAY_CPUINFO */