Added missing tegra files.HEADmaster

1 files changed, 75 insertions, 0 deletions

diff --git a/arch/arm/mach-nomadik/clock.c b/arch/arm/mach-nomadik/clock.c
new file mode 100644
index 00000000000..48a59f24e10
--- /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;
+}