1 files changed, 134 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-rmobile/cpu_info.c b/roms/u-boot/arch/arm/mach-rmobile/cpu_info.c
new file mode 100644
index 000000000..9ec622bdb
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-rmobile/cpu_info.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ * (C) Copyright 2012-2021 Renesas Solutions Corp.
+ */
+#include <common.h>
+#include <cpu_func.h>
+#include <asm/cache.h>
+#include <init.h>
+#include <asm/io.h>
+#include <env.h>
+#include <linux/ctype.h>
+
+#ifdef CONFIG_ARCH_CPU_INIT
+int arch_cpu_init(void)
+{
+	icache_enable();
+	return 0;
+}
+#endif
+
+/* R-Car Gen3 D-cache is enabled in memmap-gen3.c */
+#ifndef CONFIG_RCAR_GEN3
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
+void enable_caches(void)
+{
+	dcache_enable();
+}
+#endif
+#endif
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+#ifndef CONFIG_RZA1
+__weak const u8 *rzg_get_cpu_name(void)
+{
+	return 0;
+}
+
+static u32 __rmobile_get_cpu_type(void)
+{
+	return 0x0;
+}
+u32 rmobile_get_cpu_type(void)
+		__attribute__((weak, alias("__rmobile_get_cpu_type")));
+
+static u32 __rmobile_get_cpu_rev_integer(void)
+{
+	return 0;
+}
+u32 rmobile_get_cpu_rev_integer(void)
+		__attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
+
+static u32 __rmobile_get_cpu_rev_fraction(void)
+{
+	return 0;
+}
+u32 rmobile_get_cpu_rev_fraction(void)
+		__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
+
+/* CPU information table */
+static const struct {
+	u16 cpu_type;
+	u8 cpu_name[10];
+} rmobile_cpuinfo[] = {
+	{ RMOBILE_CPU_TYPE_SH73A0, "SH73A0" },
+	{ RMOBILE_CPU_TYPE_R8A7740, "R8A7740" },
+	{ RMOBILE_CPU_TYPE_R8A7790, "R8A7790" },
+	{ RMOBILE_CPU_TYPE_R8A7791, "R8A7791" },
+	{ RMOBILE_CPU_TYPE_R8A7792, "R8A7792" },
+	{ RMOBILE_CPU_TYPE_R8A7793, "R8A7793" },
+	{ RMOBILE_CPU_TYPE_R8A7794, "R8A7794" },
+	{ RMOBILE_CPU_TYPE_R8A7795, "R8A7795" },
+	{ RMOBILE_CPU_TYPE_R8A7796, "R8A7796" },
+	{ RMOBILE_CPU_TYPE_R8A77965, "R8A77965" },
+	{ RMOBILE_CPU_TYPE_R8A77970, "R8A77970" },
+	{ RMOBILE_CPU_TYPE_R8A77980, "R8A77980" },
+	{ RMOBILE_CPU_TYPE_R8A77990, "R8A77990" },
+	{ RMOBILE_CPU_TYPE_R8A77995, "R8A77995" },
+	{ 0x0, "CPU" },
+};
+
+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)
+			break;
+
+	return i;
+}
+
+static const u8 *get_cpu_name(int idx)
+{
+	const  u8 *cpu_name = rzg_get_cpu_name();
+
+	return cpu_name ? cpu_name : rmobile_cpuinfo[idx].cpu_name;
+}
+
+#ifdef CONFIG_ARCH_MISC_INIT
+int arch_misc_init(void)
+{
+	int i, idx = rmobile_cpuinfo_idx();
+	const u8 *cpu_name = get_cpu_name(idx);
+	char cpu[10] = { 0 };
+
+	for (i = 0; i < sizeof(cpu); i++)
+		cpu[i] = tolower(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",
+		get_cpu_name(i), rmobile_get_cpu_rev_integer(),
+		rmobile_get_cpu_rev_fraction());
+
+	return 0;
+}
+#else
+int print_cpuinfo(void)
+{
+	printf("CPU: Renesas Electronics RZ/A1\n");
+	return 0;
+}
+#endif
+#endif /* CONFIG_DISPLAY_CPUINFO */