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authorMike Frysinger <vapier@gentoo.org>2011-03-17 17:35:01 -0400
committerRemy Bohmer <linux@bohmer.net>2011-04-02 09:38:24 +0200
commit081b59e4536d050ed5dc3c16ec5c65d16c0edc94 (patch)
tree86ccb69a480d2dab8f3f14aed0345efe3c587941 /drivers/usb
parent38e0745e4ddcf0b26fdc609ced835e67bf343689 (diff)
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usb: musb: blackfin: check anomaly workarounds at runtime too
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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/blackfin_usb.c29
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 |