From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 arch/arm/mach-nomadik/clock.c | 75 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 arch/arm/mach-nomadik/clock.c

(limited to 'arch/arm/mach-nomadik/clock.c')

diff --git a/arch/arm/mach-nomadik/clock.c b/arch/arm/mach-nomadik/clock.c
new file mode 100644
index 00000000..48a59f24
--- /dev/null
+++ b/arch/arm/mach-nomadik/clock.c
@@ -0,0 +1,75 @@
+/*
+ *  linux/arch/arm/mach-nomadik/clock.c
+ *
+ *  Copyright (C) 2009 Alessandro Rubini
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include "clock.h"
+
+/*
+ * The nomadik board uses generic clocks, but the serial pl011 file
+ * calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
+ */
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+/* enable and disable do nothing */
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+static struct clk clk_24 = {
+	.rate = 2400000,
+};
+
+static struct clk clk_48 = {
+	.rate = 48 * 1000 * 1000,
+};
+
+/*
+ * Catch-all default clock to satisfy drivers using the clk API.  We don't
+ * model the actual hardware clocks yet.
+ */
+static struct clk clk_default;
+
+#define CLK(_clk, dev)				\
+	{					\
+		.clk		= _clk,		\
+		.dev_id		= dev,		\
+	}
+
+static struct clk_lookup lookups[] = {
+	{
+		.con_id		= "apb_pclk",
+		.clk		= &clk_default,
+	},
+	CLK(&clk_24, "mtu0"),
+	CLK(&clk_24, "mtu1"),
+	CLK(&clk_48, "uart0"),
+	CLK(&clk_48, "uart1"),
+	CLK(&clk_default, "gpio.0"),
+	CLK(&clk_default, "gpio.1"),
+	CLK(&clk_default, "gpio.2"),
+	CLK(&clk_default, "gpio.3"),
+	CLK(&clk_default, "rng"),
+};
+
+int __init clk_init(void)
+{
+	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+	return 0;
+}
-- 
cgit v1.2.3