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 ade45a219c47f222de6a5570d6739e4d7161e5df..fcb5206a65bdfd84eca43a39ce974f20489e2c80 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 ee2dd1d506ed575cd795963dc8cad50c7aefa419..2387f9fc81381dd517c7d3008de21aeb5790c0da 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
 
 };