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>

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>
Nikhil Badola · York Sun
1 parent 0070459048
Showing 2 changed files with 27 additions and 0 deletions Side-by-side Diff
drivers/usb/host/ehci-fsl.c
include/fsl_usb.h
@@ -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];
@@ -344,6 +345,14 @@
 						    "fsl,usb-erratum-a007792",
 						    usb_erratum_a007792_off);
 			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;
 		}
 	}
@@ -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)
 {
@@ -218,6 +231,11 @@
 }
  
 static inline bool has_erratum_a007792(void)
+{
+	return false;
+}
+
+static inline bool has_erratum_a005697(void)
 {
 	return false;
 }
...	...	@@ -263,6 +263,7 @@
263	263	int usb_erratum_a006261_off = -1;
264	264	int usb_erratum_a007075_off = -1;
265	265	int usb_erratum_a007792_off = -1;
	266	+ int usb_erratum_a005697_off = -1;
266	267	int usb_mode_off = -1;
267	268	int usb_phy_off = -1;
268	269	char str[5];
...	...	@@ -344,6 +345,14 @@
344	345	"fsl,usb-erratum-a007792",
345	346	usb_erratum_a007792_off);
346	347	if (usb_erratum_a007792_off < 0)
	348	+ return;
	349	+ }
	350	+ if (has_erratum_a005697()) {
	351	+ usb_erratum_a005697_off = fdt_fixup_usb_erratum
	352	+ (blob,
	353	+ "fsl,usb-erratum-a005697",
	354	+ usb_erratum_a005697_off);
	355	+ if (usb_erratum_a005697_off < 0)
347	356	return;
348	357	}
349	358	}
...	...	@@ -196,6 +196,19 @@
196	196	return false;
197	197	}
198	198
	199	+static inline bool has_erratum_a005697(void)
	200	+{
	201	+ u32 svr = get_svr();
	202	+ u32 soc = SVR_SOC_VER(svr);
	203	+
	204	+ switch (soc) {
	205	+ case SVR_9131:
	206	+ case SVR_9132:
	207	+ return IS_SVR_REV(svr, 1, 0) \|\| IS_SVR_REV(svr, 1, 1);
	208	+ }
	209	+ return false;
	210	+}
	211	+
199	212	#else
200	213	static inline bool has_dual_phy(void)
201	214	{
...	...	@@ -218,6 +231,11 @@
218	231	}
219	232
220	233	static inline bool has_erratum_a007792(void)
	234	+{
	235	+ return false;
	236	+}
	237	+
	238	+static inline bool has_erratum_a005697(void)
221	239	{
222	240	return false;
223	241	}