USB: musb: blackfin: push clkin value to platform resources

In order to not touch the driver file for different xtal usage,
push the clkin value to board file and calculate the register
value instead of hardcoding it.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index ade45a2..fcb5206 100644 (file)
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -337,7 +337,8 @@ static void musb_platform_reg_init(struct musb *musb)
        }
 
        /* Configure PLL oscillator register */
-       bfin_write_USB_PLLOSC_CTRL(0x30a8);
+       bfin_write_USB_PLLOSC_CTRL(0x3080 |
+                       ((480/musb->config->clkin) << 1));
        SSYNC();
 
        bfin_write_USB_SRP_CLKDIV((get_sclk()/1000) / 32 - 1);

diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index ee2dd1d..2387f9f 100644 (file)
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -89,6 +89,8 @@ struct musb_hdrc_config {
        /* A GPIO controlling VRSEL in Blackfin */
        unsigned int    gpio_vrsel;
        unsigned int    gpio_vrsel_active;
+       /* musb CLKIN in Blackfin in MHZ */
+       unsigned char   clkin;
 #endif
 
 };