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
arch_cpu_init(void)10 int arch_cpu_init(void)
11 {
12 icache_enable();
13 return 0;
14 }
15 #endif
16
17 #ifndef CONFIG_SYS_DCACHE_OFF
enable_caches(void)18 void enable_caches(void)
19 {
20 dcache_enable();
21 }
22 #endif
23
24 #ifdef CONFIG_DISPLAY_CPUINFO
__rmobile_get_cpu_type(void)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
__rmobile_get_cpu_rev_integer(void)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
__rmobile_get_cpu_rev_fraction(void)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
print_cpuinfo(void)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