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 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
21 void enable_caches(void)
28 #ifdef CONFIG_DISPLAY_CPUINFO
30 static u32 __rmobile_get_cpu_type(void)
34 u32 rmobile_get_cpu_type(void)
35 __attribute__((weak, alias("__rmobile_get_cpu_type")));
37 static u32 __rmobile_get_cpu_rev_integer(void)
41 u32 rmobile_get_cpu_rev_integer(void)
42 __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
44 static u32 __rmobile_get_cpu_rev_fraction(void)
48 u32 rmobile_get_cpu_rev_fraction(void)
49 __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
51 /* CPU infomation table */
55 } rmobile_cpuinfo[] = {
56 { RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
57 { RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
58 { RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
59 { RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
60 { RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
61 { RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
62 { RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
63 { RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
64 { RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
65 { RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
66 { RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
67 { RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
68 { RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
69 { RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
73 static int rmobile_cpuinfo_idx(void)
76 u32 cpu_type = rmobile_get_cpu_type();
78 for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
79 if (rmobile_cpuinfo[i].cpu_type == cpu_type)
85 #ifdef CONFIG_ARCH_MISC_INIT
86 int arch_misc_init(void)
88 int i, idx = rmobile_cpuinfo_idx();
91 for (i = 0; i < sizeof(cpu); i++)
92 cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
94 env_set("platform", cpu);
100 int print_cpuinfo(void)
102 int i = rmobile_cpuinfo_idx();
104 printf("CPU: Renesas Electronics %s rev %d.%d\n",
105 rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
106 rmobile_get_cpu_rev_fraction());
111 int print_cpuinfo(void)
113 printf("CPU: Renesas Electronics RZ/A1\n");
117 #endif /* CONFIG_DISPLAY_CPUINFO */