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-rw-r--r--arch/sh/boards/mach-sdk7786/setup.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index c38c6cc293b..0e4b1c39742 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -14,6 +14,7 @@
#include <linux/smsc911x.h>
#include <linux/i2c.h>
#include <linux/irq.h>
+#include <linux/clk.h>
#include <asm/machvec.h>
#include <asm/heartbeat.h>
#include <asm/sizes.h>
@@ -235,6 +236,27 @@ static int sdk7786_mode_pins(void)
return pin_states;
}
+static int sdk7786_clk_init(void)
+{
+ struct clk *clk;
+ int ret;
+
+ /*
+ * Only handle the EXTAL case, anyone interfacing a crystal
+ * resonator will need to provide their own input clock.
+ */
+ if (test_mode_pin(MODE_PIN9))
+ return -EINVAL;
+
+ clk = clk_get(NULL, "extal");
+ if (!clk || IS_ERR(clk))
+ return PTR_ERR(clk);
+ ret = clk_set_rate(clk, 33333333);
+ clk_put(clk);
+
+ return ret;
+}
+
/* Initialize the board */
static void __init sdk7786_setup(char **cmdline_p)
{
@@ -248,5 +270,6 @@ static struct sh_machine_vector mv_sdk7786 __initmv = {
.mv_name = "SDK7786",
.mv_setup = sdk7786_setup,
.mv_mode_pins = sdk7786_mode_pins,
+ .mv_clk_init = sdk7786_clk_init,
.mv_init_irq = init_sdk7786_IRQ,
};