arm: rmobile: Add basic support for Renesas R-Mobile

This patch adds minimum support for R-Mobile. Only minimal support with timer.
This CPU can uses the peripheral of Renesas SuperH.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/rmobile/cpu_info.c b/arch/arm/cpu/armv7/rmobile/cpu_info.c
new file mode 100644
index 0000000000..789c2c3145
--- /dev/null
+++ b/arch/arm/cpu/armv7/rmobile/cpu_info.c
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ * (C) Copyright 2012 Renesas Solutions Corp.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/rmobile.h>
+
+#ifdef CONFIG_ARCH_CPU_INIT
+int arch_cpu_init(void)
+{
+	icache_enable();
+	return 0;
+}
+#endif
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	dcache_enable();
+}
+#endif
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+static u32 get_cpu_type(void)
+{
+	u32 id;
+	u32 type;
+
+	id = readl(CCCR);
+	type = (id >> 8) & 0xFF;
+
+	return type;
+}
+
+static u32 get_cpu_rev(void)
+{
+	u32 id;
+	u32 rev;
+
+	id = readl(CCCR);
+	rev = (id >> 4) & 0xF;
+
+	return rev;
+}
+
+int print_cpuinfo(void)
+{
+	switch (get_cpu_type()) {
+	default:
+		printf("CPU: Renesas Electronics CPU rev %d\n", get_cpu_rev());
+		break;
+	}
+	return 0;
+}
+#endif