diff options
Diffstat (limited to 'arch/sh/boards/mach-sdk7786')
| -rw-r--r-- | arch/sh/boards/mach-sdk7786/setup.c | 23 |
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 c38c6cc293b5..0e4b1c39742c 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, }; |