[U-Boot] [PATCH 1/2] 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 --- drivers/usb/musb/blackfin_usb.c | 7 ++++++- 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);
The anomaly workarounds we need for older silicon might break things if used on newer versions where the anomalies don't exist. So check the silicon rev at runtime too.
Signed-off-by: Mike Frysinger vapier@gentoo.org --- drivers/usb/musb/blackfin_usb.c | 29 ++++++++++++++++++++++++++--- 1 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/musb/blackfin_usb.c b/drivers/usb/musb/blackfin_usb.c index 0eb19a0..35268ba 100644 --- a/drivers/usb/musb/blackfin_usb.c +++ b/drivers/usb/musb/blackfin_usb.c @@ -97,10 +97,25 @@ static void __def_musb_init(void) } void board_musb_init(void) __attribute__((weak, alias("__def_musb_init")));
-int musb_platform_init(void) +static void bfin_anomaly_init(void) { - /* board specific initialization */ - board_musb_init(); + u32 revid; + + if (!ANOMALY_05000346 && !ANOMALY_05000347) + return; + + revid = bfin_revid(); + +#ifdef __ADSPBF54x__ + if (revid > 0) + return; +#endif +#ifdef __ADSPBF52x__ + if (ANOMALY_BF526 && revid > 0) + return; + if (ANOMALY_BF527 && revid > 1) + return; +#endif
if (ANOMALY_05000346) { bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value); @@ -111,6 +126,14 @@ int musb_platform_init(void) bfin_write_USB_APHY_CNTRL(0x0); SSYNC(); } +} + +int musb_platform_init(void) +{ + /* board specific initialization */ + board_musb_init(); + + bfin_anomaly_init();
/* Configure PLL oscillator register */ bfin_write_USB_PLLOSC_CTRL(0x3080 |
Hi,
2011/3/17 Mike Frysinger vapier@gentoo.org:
The anomaly workarounds we need for older silicon might break things if used on newer versions where the anomalies don't exist. So check the silicon rev at runtime too.
Signed-off-by: Mike Frysinger vapier@gentoo.org
drivers/usb/musb/blackfin_usb.c | 29 ++++++++++++++++++++++++++--- 1 files changed, 26 insertions(+), 3 deletions(-)
Applied to u-boot-usb.
Thanks.
Remy
Hi,
2011/3/17 Mike Frysinger vapier@gentoo.org:
Not everyone has a 24MHz clkin to the USB, so let board porters override.
Signed-off-by: Mike Frysinger vapier@gentoo.org
drivers/usb/musb/blackfin_usb.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
Applied to u-boot-usb
Thanks.
Remy
participants (2)
-
Mike Frysinger -
Remy Bohmer