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 	dcache_enable();
22 }
23 #endif
24 
25 #ifdef CONFIG_DISPLAY_CPUINFO
26 static u32 __rmobile_get_cpu_type(void)
27 {
28 	return 0x0;
29 }
30 u32 rmobile_get_cpu_type(void)
31 		__attribute__((weak, alias("__rmobile_get_cpu_type")));
32 
33 static u32 __rmobile_get_cpu_rev_integer(void)
34 {
35 	return 0;
36 }
37 u32 rmobile_get_cpu_rev_integer(void)
38 		__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
39 
40 static u32 __rmobile_get_cpu_rev_fraction(void)
41 {
42 	return 0;
43 }
44 u32 rmobile_get_cpu_rev_fraction(void)
45 		__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
46 
47 /* CPU infomation table */
48 static const struct {
49 	u16 cpu_type;
50 	u8 cpu_name[10];
51 } rmobile_cpuinfo[] = {
52 	{ 0x37, "SH73A0" },
53 	{ 0x40, "R8A7740" },
54 	{ 0x45, "R8A7790" },
55 	{ 0x47, "R8A7791" },
56 	{ 0x4A, "R8A7792" },
57 	{ 0x4B, "R8A7793" },
58 	{ 0x4C, "R8A7794" },
59 	{ 0x4F, "R8A7795" },
60 	{ 0x52, "R8A7796" },
61 	{ 0x0, "CPU" },
62 };
63 
64 int print_cpuinfo(void)
65 {
66 	int i = 0;
67 	u32 cpu_type = rmobile_get_cpu_type();
68 	for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++) {
69 		if (rmobile_cpuinfo[i].cpu_type == cpu_type) {
70 			printf("CPU: Renesas Electronics %s rev %d.%d\n",
71 			       rmobile_cpuinfo[i].cpu_name,
72 			       rmobile_get_cpu_rev_integer(),
73 			       rmobile_get_cpu_rev_fraction());
74 			break;
75 		}
76 	}
77 	return 0;
78 }
79 #endif /* CONFIG_DISPLAY_CPUINFO */
80