1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
4 * (C) Copyright 2012 Renesas Solutions Corp.
8 #include <linux/ctype.h>
10 #ifdef CONFIG_ARCH_CPU_INIT
11 int arch_cpu_init(void)
18 /* R-Car Gen3 D-cache is enabled in memmap-gen3.c */
19 #ifndef CONFIG_RCAR_GEN3
20 #ifndef CONFIG_SYS_DCACHE_OFF
21 void enable_caches(void)
28 #ifdef CONFIG_DISPLAY_CPUINFO
29 static u32 __rmobile_get_cpu_type(void)
33 u32 rmobile_get_cpu_type(void)
34 __attribute__((weak, alias("__rmobile_get_cpu_type")));
36 static u32 __rmobile_get_cpu_rev_integer(void)
40 u32 rmobile_get_cpu_rev_integer(void)
41 __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
43 static u32 __rmobile_get_cpu_rev_fraction(void)
47 u32 rmobile_get_cpu_rev_fraction(void)
48 __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
50 /* CPU infomation table */
54 } rmobile_cpuinfo[] = {
55 { RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
56 { RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
57 { RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
58 { RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
59 { RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
60 { RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
61 { RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
62 { RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
63 { RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
64 { RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
65 { RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
66 { RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
67 { RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
71 static int rmobile_cpuinfo_idx(void)
74 u32 cpu_type = rmobile_get_cpu_type();
76 for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
77 if (rmobile_cpuinfo[i].cpu_type == cpu_type)
83 #ifdef CONFIG_ARCH_MISC_INIT
84 int arch_misc_init(void)
86 int i, idx = rmobile_cpuinfo_idx();
89 for (i = 0; i < sizeof(cpu); i++)
90 cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
92 env_set("platform", cpu);
98 int print_cpuinfo(void)
100 int i = rmobile_cpuinfo_idx();
102 printf("CPU: Renesas Electronics %s rev %d.%d\n",
103 rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
104 rmobile_get_cpu_rev_fraction());
108 #endif /* CONFIG_DISPLAY_CPUINFO */