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
arch_cpu_init(void)11 int arch_cpu_init(void)
12 {
13 icache_enable();
14 return 0;
15 }
16 #endif
17
18 #ifndef CONFIG_SYS_DCACHE_OFF
enable_caches(void)19 void enable_caches(void)
20 {
21 dcache_enable();
22 }
23 #endif
24
25 #ifdef CONFIG_DISPLAY_CPUINFO
__rmobile_get_cpu_type(void)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
__rmobile_get_cpu_rev_integer(void)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
__rmobile_get_cpu_rev_fraction(void)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
print_cpuinfo(void)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