ARM: rmobile: Set environment variable containing CPU type

Set environment variable 'platform' containing the CPU type.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index eb6ce29..13ba774 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -784,6 +784,7 @@ config ARCH_RMOBILE
        imply CMD_DM
        imply FAT_WRITE
        imply SYS_THUMB_BUILD
+       imply ARCH_MISC_INIT if DISPLAY_CPUINFO
 
 config TARGET_S32V234EVB
        bool "Support s32v234evb"

diff --git a/arch/arm/mach-rmobile/cpu_info.c b/arch/arm/mach-rmobile/cpu_info.c
index c9ebc9f..65a9ca8 100644 (file)
--- a/arch/arm/mach-rmobile/cpu_info.c
+++ b/arch/arm/mach-rmobile/cpu_info.c
@@ -5,6 +5,7 @@
  */
 #include <common.h>
 #include <asm/io.h>
+#include <linux/ctype.h>
 
 /* R-Car Gen3 caches are enabled in memmap-gen3.c */
 #ifndef CONFIG_RCAR_GEN3
@@ -67,19 +68,41 @@ static const struct {
        { 0x0, "CPU" },
 };
 
-int print_cpuinfo(void)
+static int rmobile_cpuinfo_idx(void)
 {
        int i = 0;
        u32 cpu_type = rmobile_get_cpu_type();
-       for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++) {
-               if (rmobile_cpuinfo[i].cpu_type == cpu_type) {
-                       printf("CPU: Renesas Electronics %s rev %d.%d\n",
-                              rmobile_cpuinfo[i].cpu_name,
-                              rmobile_get_cpu_rev_integer(),
-                              rmobile_get_cpu_rev_fraction());
+
+       for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++)
+               if (rmobile_cpuinfo[i].cpu_type == cpu_type)
                        break;
-               }
-       }
+
+       return i;
+}
+
+#ifdef CONFIG_ARCH_MISC_INIT
+int arch_misc_init(void)
+{
+       int i, idx = rmobile_cpuinfo_idx();
+       char cpu[10] = { 0 };
+
+       for (i = 0; i < sizeof(cpu); i++)
+               cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
+
+       env_set("platform", cpu);
+
+       return 0;
+}
+#endif
+
+int print_cpuinfo(void)
+{
+       int i = rmobile_cpuinfo_idx();
+
+       printf("CPU: Renesas Electronics %s rev %d.%d\n",
+               rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
+               rmobile_get_cpu_rev_fraction());
+
        return 0;
 }
 #endif /* CONFIG_DISPLAY_CPUINFO */