[U-Boot] [PATCH] ARM: rmobile: Set environment variable containing CPU type
Marek Vasut
marek.vasut at gmail.com
Tue Dec 4 00:31:06 UTC 2018
Set environment variable 'platform' containing the CPU type.
Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-rmobile/cpu_info.c | 41 +++++++++++++++++++++++++-------
2 files changed, 33 insertions(+), 9 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 96eadb6fd6..17de95bf4e 100644
--- 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 c9ebc9f40e..65a9ca8c01 100644
--- 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 */
--
2.18.0
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