1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
4  * (C) Copyright 2012 Renesas Solutions Corp.
5  */
6 #include <common.h>
7 #include <asm/io.h>
8 
9 #ifdef CONFIG_ARCH_CPU_INIT
10 int arch_cpu_init(void)
11 {
12 	icache_enable();
13 	return 0;
14 }
15 #endif
16 
17 #ifndef CONFIG_SYS_DCACHE_OFF
18 void enable_caches(void)
19 {
20 	dcache_enable();
21 }
22 #endif
23 
24 #ifdef CONFIG_DISPLAY_CPUINFO
25 static u32 __rmobile_get_cpu_type(void)
26 {
27 	return 0x0;
28 }
29 u32 rmobile_get_cpu_type(void)
30 		__attribute__((weak, alias("__rmobile_get_cpu_type")));
31 
32 static u32 __rmobile_get_cpu_rev_integer(void)
33 {
34 	return 0;
35 }
36 u32 rmobile_get_cpu_rev_integer(void)
37 		__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
38 
39 static u32 __rmobile_get_cpu_rev_fraction(void)
40 {
41 	return 0;
42 }
43 u32 rmobile_get_cpu_rev_fraction(void)
44 		__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
45 
46 /* CPU infomation table */
47 static const struct {
48 	u16 cpu_type;
49 	u8 cpu_name[10];
50 } rmobile_cpuinfo[] = {
51 	{ RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
52 	{ RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
53 	{ RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
54 	{ RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
55 	{ RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
56 	{ RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
57 	{ RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
58 	{ RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
59 	{ RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
60 	{ RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
61 	{ RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
62 	{ RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
63 	{ RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
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