clk: hs: add fix rate clock support

Add fix rate clock support with device tree on Hisilicon SoC.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

2 files changed, 46 insertions, 0 deletions

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index ee90e87e767..554ec53bc6e 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-fixed-rate.o clk-gate.o \
 obj-$(CONFIG_ARCH_BCM2835)	+= clk-bcm2835.o
 obj-$(CONFIG_ARCH_NOMADIK)	+= clk-nomadik.o
 obj-$(CONFIG_ARCH_HIGHBANK)	+= clk-highbank.o
+obj-$(CONFIG_ARCH_HS)		+= clk-hs.o
 obj-$(CONFIG_ARCH_MXS)		+= mxs/
 obj-$(CONFIG_ARCH_SOCFPGA)	+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)	+= spear/
diff --git a/drivers/clk/clk-hs.c b/drivers/clk/clk-hs.c
new file mode 100644
index 00000000000..99f907f0d23
--- /dev/null
+++ b/drivers/clk/clk-hs.c
@@ -0,0 +1,45 @@
+/*
+ * Hisilicon clock driver
+ *
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+
+static const __initconst struct of_device_id hs_clk_match[] = {
+	{
+		.compatible = "fixed-clock",
+		.data = of_fixed_clk_setup,
+	},
+};
+
+void __init hs_init_clocks(void)
+{
+	struct device_node *node;
+
+	of_clk_init(hs_clk_match);
+}