ARM: mach-shmobile: SH-Mobile G3 support.

This adds preliminary support for the SH-Mobile G-series.

The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside
from the ARM MPU are primarily composed of existing SH IP blocks.

This includes initial support for the SH7367 (SH-Mobile G3) CPU and
the G3EVM reference board.

Only timer, serial console, and NOR flash are supported at this point.
Patches for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/clock-sh7367.c b/arch/arm/mach-shmobile/clock-sh7367.c
new file mode 100644
index 00000000000..3b2e3f2fc7e
--- /dev/null
+++ b/arch/arm/mach-shmobile/clock-sh7367.c
@@ -0,0 +1,89 @@
+/*
+ * Preliminary clock framework support for sh7367
+ *
+ * Copyright (C) 2010  Magnus Damm
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+
+struct clk {
+	const char *name;
+	unsigned long rate;
+};
+
+#include <asm/clkdev.h>
+
+int __clk_get(struct clk *clk)
+{
+	return 1;
+}
+EXPORT_SYMBOL(__clk_get);
+
+void __clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(__clk_put);
+
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk ? clk->rate : 0;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+/* a static peripheral clock for now - enough to get sh-sci working */
+static struct clk peripheral_clk = {
+	.name	    = "peripheral_clk",
+	.rate	    = 48000000,
+};
+
+/* a static rclk for now - enough to get sh_cmt working */
+static struct clk r_clk = {
+	.name	    = "r_clk",
+	.rate	    = 32768,
+};
+
+static struct clk_lookup lookups[] = {
+	{
+		.clk = &peripheral_clk,
+	}, {
+		.clk = &r_clk,
+	}
+};
+
+void __init sh7367_clock_init(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(lookups); i++) {
+		lookups[i].con_id = lookups[i].clk->name;
+		clkdev_add(&lookups[i]);
+	}
+}