1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
3*4882a593Smuzhiyun * (C) Copyright 2012 Renesas Solutions Corp.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <asm/io.h>
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #ifdef CONFIG_ARCH_CPU_INIT
arch_cpu_init(void)11*4882a593Smuzhiyun int arch_cpu_init(void)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun icache_enable();
14*4882a593Smuzhiyun return 0;
15*4882a593Smuzhiyun }
16*4882a593Smuzhiyun #endif
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #ifndef CONFIG_SYS_DCACHE_OFF
enable_caches(void)19*4882a593Smuzhiyun void enable_caches(void)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun dcache_enable();
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun #endif
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #ifdef CONFIG_DISPLAY_CPUINFO
__rmobile_get_cpu_type(void)26*4882a593Smuzhiyun static u32 __rmobile_get_cpu_type(void)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun return 0x0;
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun u32 rmobile_get_cpu_type(void)
31*4882a593Smuzhiyun __attribute__((weak, alias("__rmobile_get_cpu_type")));
32*4882a593Smuzhiyun
__rmobile_get_cpu_rev_integer(void)33*4882a593Smuzhiyun static u32 __rmobile_get_cpu_rev_integer(void)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun return 0;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun u32 rmobile_get_cpu_rev_integer(void)
38*4882a593Smuzhiyun __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
39*4882a593Smuzhiyun
__rmobile_get_cpu_rev_fraction(void)40*4882a593Smuzhiyun static u32 __rmobile_get_cpu_rev_fraction(void)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun u32 rmobile_get_cpu_rev_fraction(void)
45*4882a593Smuzhiyun __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun /* CPU infomation table */
48*4882a593Smuzhiyun static const struct {
49*4882a593Smuzhiyun u16 cpu_type;
50*4882a593Smuzhiyun u8 cpu_name[10];
51*4882a593Smuzhiyun } rmobile_cpuinfo[] = {
52*4882a593Smuzhiyun { 0x37, "SH73A0" },
53*4882a593Smuzhiyun { 0x40, "R8A7740" },
54*4882a593Smuzhiyun { 0x45, "R8A7790" },
55*4882a593Smuzhiyun { 0x47, "R8A7791" },
56*4882a593Smuzhiyun { 0x4A, "R8A7792" },
57*4882a593Smuzhiyun { 0x4B, "R8A7793" },
58*4882a593Smuzhiyun { 0x4C, "R8A7794" },
59*4882a593Smuzhiyun { 0x4F, "R8A7795" },
60*4882a593Smuzhiyun { 0x52, "R8A7796" },
61*4882a593Smuzhiyun { 0x0, "CPU" },
62*4882a593Smuzhiyun };
63*4882a593Smuzhiyun
print_cpuinfo(void)64*4882a593Smuzhiyun int print_cpuinfo(void)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun int i = 0;
67*4882a593Smuzhiyun u32 cpu_type = rmobile_get_cpu_type();
68*4882a593Smuzhiyun for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++) {
69*4882a593Smuzhiyun if (rmobile_cpuinfo[i].cpu_type == cpu_type) {
70*4882a593Smuzhiyun printf("CPU: Renesas Electronics %s rev %d.%d\n",
71*4882a593Smuzhiyun rmobile_cpuinfo[i].cpu_name,
72*4882a593Smuzhiyun rmobile_get_cpu_rev_integer(),
73*4882a593Smuzhiyun rmobile_get_cpu_rev_fraction());
74*4882a593Smuzhiyun break;
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun }
77*4882a593Smuzhiyun return 0;
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun #endif /* CONFIG_DISPLAY_CPUINFO */
80