clk: hip04: add clock driver

Now only fixed rate clocks are appended into the clock driver.

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

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index a367a98..5134a79 100644 (file)
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_COMMON_CLK_WM831X)               += clk-wm831x.o
 obj-$(CONFIG_COMMON_CLK_XGENE)         += clk-xgene.o
 obj-$(CONFIG_COMMON_CLK_AT91)          += at91/
 obj-$(CONFIG_ARCH_HI3xxx)              += hisilicon/
+obj-$(CONFIG_ARCH_HIP04)               += hisilicon/
 obj-$(CONFIG_COMMON_CLK_KEYSTONE)      += keystone/
 ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_ARCH_MMP)                 += mmp/

diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index a049108..40b33c6 100644 (file)
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -2,4 +2,7 @@
 # Hisilicon Clock specific Makefile
 #
 
-obj-y  += clk.o clkgate-separated.o clk-hi3620.o
+obj-y  += clk.o clkgate-separated.o
+
+obj-$(CONFIG_ARCH_HI3xxx)      += clk-hi3620.o
+obj-$(CONFIG_ARCH_HIP04)       += clk-hip04.o

diff --git a/drivers/clk/hisilicon/clk-hip04.c b/drivers/clk/hisilicon/clk-hip04.c
new file mode 100644 (file)
index 0000000..bdc6cd0
--- /dev/null
+++ b/drivers/clk/hisilicon/clk-hip04.c
@@ -0,0 +1,54 @@
+/*
+ * Hisilicon HiP04 clock driver
+ *
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 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/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+
+#include <dt-bindings/clock/hip04-clock.h>
+
+#include "clk.h"
+
+/* fixed rate clocks */
+static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = {
+       { HIP04_OSC50M,   "osc50m",   NULL, CLK_IS_ROOT, 50000000, },
+       { HIP04_CLK_50M,  "clk50m",   NULL, CLK_IS_ROOT, 50000000, },
+       { HIP04_CLK_168M, "clk168m",  NULL, CLK_IS_ROOT, 168750000, },
+};
+
+static void __init hip04_clk_init(struct device_node *np)
+{
+       hisi_clk_init(np, HIP04_NR_CLKS);
+
+       hisi_clk_register_fixed_rate(hip04_fixed_rate_clks,
+                                    ARRAY_SIZE(hip04_fixed_rate_clks),
+                                    NULL);
+}
+CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init);

diff --git a/include/dt-bindings/clock/hip04-clock.h b/include/dt-bindings/clock/hip04-clock.h
new file mode 100644 (file)
index 0000000..695e61c
--- /dev/null
+++ b/include/dt-bindings/clock/hip04-clock.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 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.
+ *
+ */
+
+#ifndef __DTS_HIP04_CLOCK_H
+#define __DTS_HIP04_CLOCK_H
+
+#define HIP04_NONE_CLOCK       0
+
+/* fixed rate & fixed factor clocks */
+#define HIP04_OSC50M           1
+#define HIP04_CLK_50M          2
+#define HIP04_CLK_168M         3
+
+#define HIP04_NR_CLKS          64
+
+#endif /* __DTS_HIP04_CLOCK_H */