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usb: musb: blackfin: make clkin configurable 

Not everyone has a 24MHz clkin to the USB, so let board porters override.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2011-03-17 17:35:00 -04:00 committed by Remy Bohmer
parent 67a490d60d
commit 38e0745e4d
1 changed files with 6 additions and 1 deletions
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7
drivers/usb/musb/blackfin_usb.c
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@ -15,6 +15,10 @@
#include "musb_core.h"
#ifndef CONFIG_USB_BLACKFIN_CLKIN
#define CONFIG_USB_BLACKFIN_CLKIN 24
#endif
/* MUSB platform configuration */
struct musb_config musb_cfg = {
.regs = (struct musb_regs *)USB_FADDR,
@ -109,7 +113,8 @@ int musb_platform_init(void)
}
/* Configure PLL oscillator register */
bfin_write_USB_PLLOSC_CTRL(0x30a8);
bfin_write_USB_PLLOSC_CTRL(0x3080 |
((480 / CONFIG_USB_BLACKFIN_CLKIN) << 1));
SSYNC();
bfin_write_USB_SRP_CLKDIV((get_sclk()/1000) / 32 - 1);