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.
9 #include <linux/ctype.h>
11 #ifdef CONFIG_ARCH_CPU_INIT
12 int arch_cpu_init(void)
19 /* R-Car Gen3 D-cache is enabled in memmap-gen3.c */
20 #ifndef CONFIG_RCAR_GEN3
21 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
22 void enable_caches(void)
29 #ifdef CONFIG_DISPLAY_CPUINFO
31 static u32 __rmobile_get_cpu_type(void)
35 u32 rmobile_get_cpu_type(void)
36 __attribute__((weak, alias("__rmobile_get_cpu_type")));
38 static u32 __rmobile_get_cpu_rev_integer(void)
42 u32 rmobile_get_cpu_rev_integer(void)
43 __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
45 static u32 __rmobile_get_cpu_rev_fraction(void)
49 u32 rmobile_get_cpu_rev_fraction(void)
50 __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
52 /* CPU infomation table */
56 } rmobile_cpuinfo[] = {
57 { RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
58 { RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
59 { RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
60 { RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
61 { RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
62 { RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
63 { RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
64 { RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
65 { RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
66 { RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
67 { RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
68 { RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
69 { RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
70 { RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
74 static int rmobile_cpuinfo_idx(void)
77 u32 cpu_type = rmobile_get_cpu_type();
79 for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
80 if (rmobile_cpuinfo[i].cpu_type == cpu_type)
86 #ifdef CONFIG_ARCH_MISC_INIT
87 int arch_misc_init(void)
89 int i, idx = rmobile_cpuinfo_idx();
92 for (i = 0; i < sizeof(cpu); i++)
93 cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
95 env_set("platform", cpu);
101 int print_cpuinfo(void)
103 int i = rmobile_cpuinfo_idx();
105 printf("CPU: Renesas Electronics %s rev %d.%d\n",
106 rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
107 rmobile_get_cpu_rev_fraction());
112 int print_cpuinfo(void)
114 printf("CPU: Renesas Electronics RZ/A1\n");
118 #endif /* CONFIG_DISPLAY_CPUINFO */