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.
12 #include <linux/ctype.h>
14 #ifdef CONFIG_ARCH_CPU_INIT
15 int arch_cpu_init(void)
22 /* R-Car Gen3 D-cache is enabled in memmap-gen3.c */
23 #ifndef CONFIG_RCAR_GEN3
24 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
25 void enable_caches(void)
32 #ifdef CONFIG_DISPLAY_CPUINFO
34 static u32 __rmobile_get_cpu_type(void)
38 u32 rmobile_get_cpu_type(void)
39 __attribute__((weak, alias("__rmobile_get_cpu_type")));
41 static u32 __rmobile_get_cpu_rev_integer(void)
45 u32 rmobile_get_cpu_rev_integer(void)
46 __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
48 static u32 __rmobile_get_cpu_rev_fraction(void)
52 u32 rmobile_get_cpu_rev_fraction(void)
53 __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
55 /* CPU infomation table */
59 } rmobile_cpuinfo[] = {
60 { RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
61 { RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
62 { RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
63 { RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
64 { RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
65 { RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
66 { RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
67 { RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
68 { RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
69 { RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
70 { RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
71 { RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
72 { RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
73 { RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
77 static int rmobile_cpuinfo_idx(void)
80 u32 cpu_type = rmobile_get_cpu_type();
82 for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
83 if (rmobile_cpuinfo[i].cpu_type == cpu_type)
89 #ifdef CONFIG_ARCH_MISC_INIT
90 int arch_misc_init(void)
92 int i, idx = rmobile_cpuinfo_idx();
95 for (i = 0; i < sizeof(cpu); i++)
96 cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
98 env_set("platform", cpu);
104 int print_cpuinfo(void)
106 int i = rmobile_cpuinfo_idx();
108 printf("CPU: Renesas Electronics %s rev %d.%d\n",
109 rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
110 rmobile_get_cpu_rev_fraction());
115 int print_cpuinfo(void)
117 printf("CPU: Renesas Electronics RZ/A1\n");
121 #endif /* CONFIG_DISPLAY_CPUINFO */