1 /*
2  * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
3  * (C) Copyright 2012 Renesas Solutions Corp.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 #include <common.h>
8 #include <asm/io.h>
9 
10 #ifdef CONFIG_ARCH_CPU_INIT
11 int arch_cpu_init(void)
12 {
13 	icache_enable();
14 	return 0;
15 }
16 #endif
17 
18 #ifndef CONFIG_SYS_DCACHE_OFF
19 void enable_caches(void)
20 {
21 #if defined(CONFIG_RCAR_GEN3)
22 	rcar_gen3_memmap_fixup();
23 #endif
24 	dcache_enable();
25 }
26 #endif
27 
28 #ifdef CONFIG_DISPLAY_CPUINFO
29 static u32 __rmobile_get_cpu_type(void)
30 {
31 	return 0x0;
32 }
33 u32 rmobile_get_cpu_type(void)
34 		__attribute__((weak, alias("__rmobile_get_cpu_type")));
35 
36 static u32 __rmobile_get_cpu_rev_integer(void)
37 {
38 	return 0;
39 }
40 u32 rmobile_get_cpu_rev_integer(void)
41 		__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
42 
43 static u32 __rmobile_get_cpu_rev_fraction(void)
44 {
45 	return 0;
46 }
47 u32 rmobile_get_cpu_rev_fraction(void)
48 		__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
49 
50 /* CPU infomation table */
51 static const struct {
52 	u16 cpu_type;
53 	u8 cpu_name[10];
54 } rmobile_cpuinfo[] = {
55 	{ RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
56 	{ RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
57 	{ RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
58 	{ RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
59 	{ RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
60 	{ RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
61 	{ RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
62 	{ RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
63 	{ RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
64 	{ 0x0, "CPU" },
65 };
66 
67 int print_cpuinfo(void)
68 {
69 	int i = 0;
70 	u32 cpu_type = rmobile_get_cpu_type();
71 	for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++) {
72 		if (rmobile_cpuinfo[i].cpu_type == cpu_type) {
73 			printf("CPU: Renesas Electronics %s rev %d.%d\n",
74 			       rmobile_cpuinfo[i].cpu_name,
75 			       rmobile_get_cpu_rev_integer(),
76 			       rmobile_get_cpu_rev_fraction());
77 			break;
78 		}
79 	}
80 	return 0;
81 }
82 #endif /* CONFIG_DISPLAY_CPUINFO */
83