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-rw-r--r--arch/arm/mach-shmobile/clock-sh7367.c96
1 files changed, 96 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..58bd54e1113
--- /dev/null
+++ b/arch/arm/mach-shmobile/clock-sh7367.c
@@ -0,0 +1,96 @@
+/*
+ * 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,
+};
+
+/* a static usb0 for now - enough to get r8a66597 working */
+static struct clk usb0_clk = {
+ .name = "usb0",
+};
+
+static struct clk_lookup lookups[] = {
+ {
+ .clk = &peripheral_clk,
+ }, {
+ .clk = &r_clk,
+ }, {
+ .clk = &usb0_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]);
+ }
+}