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authorMike Frysinger <vapier@gentoo.org>2011-03-17 17:35:00 -0400
committerRemy Bohmer <linux@bohmer.net>2011-04-02 09:38:24 +0200
commit38e0745e4ddcf0b26fdc609ced835e67bf343689 (patch)
tree720d9877ceeac84fac393b7c0dba6fffead9edb5 /drivers/usb
parent67a490d60d70f2b01d55976440ba30154af96965 (diff)
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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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/blackfin_usb.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/musb/blackfin_usb.c b/drivers/usb/musb/blackfin_usb.c
index 38aceb2..0eb19a0 100644
--- a/drivers/usb/musb/blackfin_usb.c
+++ b/drivers/usb/musb/blackfin_usb.c
@@ -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);