drivers:usb: Check if USB Erratum A005697 is applicable on BSC913x
Check if USB Erratum A005697 is applicable on BSC913x and
add corresponding property in the device tree via device
tree fixup which is used by linux driver
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index ed83eb4..2dca524 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -263,6 +263,7 @@
int usb_erratum_a006261_off = -1;
int usb_erratum_a007075_off = -1;
int usb_erratum_a007792_off = -1;
+ int usb_erratum_a005697_off = -1;
int usb_mode_off = -1;
int usb_phy_off = -1;
char str[5];
@@ -346,6 +347,14 @@
if (usb_erratum_a007792_off < 0)
return;
}
+ if (has_erratum_a005697()) {
+ usb_erratum_a005697_off = fdt_fixup_usb_erratum
+ (blob,
+ "fsl,usb-erratum-a005697",
+ usb_erratum_a005697_off);
+ if (usb_erratum_a005697_off < 0)
+ return;
+ }
}
}
#endif
diff --git a/include/fsl_usb.h b/include/fsl_usb.h
index 92751dd..33d9f03 100644
--- a/include/fsl_usb.h
+++ b/include/fsl_usb.h
@@ -196,6 +196,19 @@
return false;
}
+static inline bool has_erratum_a005697(void)
+{
+ u32 svr = get_svr();
+ u32 soc = SVR_SOC_VER(svr);
+
+ switch (soc) {
+ case SVR_9131:
+ case SVR_9132:
+ return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1);
+ }
+ return false;
+}
+
#else
static inline bool has_dual_phy(void)
{
@@ -221,5 +234,10 @@
{
return false;
}
+
+static inline bool has_erratum_a005697(void)
+{
+ return false;
+}
#endif
#endif /*_ASM_FSL_USB_H_ */