commit 0dc78ff857337a82d39d7e4390e317ffbc93097f
author Nikhil Badola <nikhil.badola@freescale.com> Fri Nov 21 17:25:21 2014 +0530
committer York Sun <yorksun@freescale.com> Mon May 04 09:23:50 2015 -0700
tree d584241cdf4866dadf0659d1fdb073e82b00279e
parent 7fc63cca611b9d2b5f170f9f37e6f99ddf5992a9

drivers: usb: fsl: Workaround for Erratum A004477

Add a delay of 1 microsecond before issuing soft reset to the
controller to let ongoing ULPI transaction complete.
This prevents corruption of ULPI Function Control Register which
eventually prevents phy clock from entering to low power mode

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/include/asm/config_mpc85xx.h

diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 69e0592..fecfe1b 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -163,6 +163,7 @@
 #define CONFIG_SYS_FSL_ERRATUM_A004508
 #define CONFIG_SYS_FSL_ERRATUM_A007075
 #define CONFIG_SYS_FSL_ERRATUM_A006261
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 #define CONFIG_SYS_FSL_A004447_SVR_REV	0x10
 #define CONFIG_ESDHC_HC_BLK_ADDR
 
@@ -294,6 +295,7 @@
 #define CONFIG_FSL_SATA_ERRATUM_A001
 #define CONFIG_SYS_FSL_ERRATUM_A004508
 #define CONFIG_SYS_FSL_ERRATUM_A005125
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 
 #elif defined(CONFIG_P1023)
 #define CONFIG_MAX_CPUS			2
@@ -374,6 +376,7 @@
 #define CONFIG_SYS_FSL_SRIO_MSG_UNIT_NUM	2
 #define CONFIG_SYS_FSL_ERRATUM_A004508
 #define CONFIG_SYS_FSL_ERRATUM_A005125
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 #define CONFIG_USB_MAX_CONTROLLER_COUNT	1
 
 #elif defined(CONFIG_PPC_P2041) /* also supports P2040 */
@@ -591,6 +594,7 @@
 #define CONFIG_NAND_FSL_IFC
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define CONFIG_SYS_FSL_ERRATUM_A005125
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 #define CONFIG_ESDHC_HC_BLK_ADDR
 
 #elif defined(CONFIG_BSC9132)
@@ -615,6 +619,7 @@
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
 #define CONFIG_SYS_FSL_ERRATUM_A005125
 #define CONFIG_SYS_FSL_ERRATUM_A005434
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447
 #define CONFIG_SYS_FSL_A004447_SVR_REV	0x11
 #define CONFIG_ESDHC_HC_BLK_ADDR
@@ -723,6 +728,7 @@
 #define CONFIG_SYS_FSL_ERRATUM_A006475
 #define CONFIG_SYS_FSL_ERRATUM_A006384
 #define CONFIG_SYS_FSL_ERRATUM_A007212
+#define CONFIG_SYS_FSL_ERRATUM_A004477
 #define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_SFP_VER_3_0