sh: urquell: Handle EXTAL configuration here, too.
urquell happens to use the same mode pins and EXTAL configuration as
SDK7786, so just copy it over.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index 268f09e..8aeac64 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -2,7 +2,7 @@
* Renesas Technology Corp. SH7786 Urquell Support.
*
* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
- * Copyright (C) 2009 Paul Mundt
+ * Copyright (C) 2009, 2010 Paul Mundt
*
* Based on board-sh7785lcr.c
* Copyright (C) 2008 Yoshihiro Shimoda
@@ -19,6 +19,7 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/irq.h>
+#include <linux/clk.h>
#include <mach/urquell.h>
#include <cpu/sh7786.h>
#include <asm/heartbeat.h>
@@ -175,6 +176,27 @@
return __raw_readw(UBOARDREG(MDSWMR));
}
+static int urquell_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 urquell_setup(char **cmdline_p)
{
@@ -191,4 +213,5 @@
.mv_setup = urquell_setup,
.mv_init_irq = urquell_init_irq,
.mv_mode_pins = urquell_mode_pins,
+ .mv_clk_init = urquell_clk_init,
};