From 081b59e4536d050ed5dc3c16ec5c65d16c0edc94 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 17 Mar 2011 17:35:01 -0400
Subject: [PATCH] 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>
---
drivers/usb/musb/blackfin_usb.c | 29 ++++++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/musb/blackfin_usb.c b/drivers/usb/musb/blackfin_usb.c
index 0eb19a0924..35268ba58e 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 |
--
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