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-rw-r--r--arch/powerpc/cpu/mpc85xx/cmd_errata.c4
-rw-r--r--arch/powerpc/include/asm/config_mpc85xx.h6
-rw-r--r--drivers/usb/host/ehci-fsl.c10
-rw-r--r--include/fsl_usb.h29
4 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
index 2d5ddf0..b368562 100644
--- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -299,6 +299,10 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
if (has_erratum_a007798())
puts("Work-around for Erratum A007798 enabled\n");
#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A004477
+ if (has_erratum_a004477())
+ puts("Work-around for Erratum A004477 enabled\n");
+#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_I2C_A004447
if ((SVR_SOC_VER(svr) == SVR_8548 && IS_SVR_REV(svr, 3, 1)) ||
(SVR_REV(svr) <= CONFIG_SYS_FSL_A004447_SVR_REV))
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
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 2dca524..5fd618d 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -138,6 +138,16 @@ int ehci_hcd_init(int index, enum usb_init_type init,
if (has_erratum_a007798())
set_txfifothresh(ehci, TXFIFOTHRESH);
+ if (has_erratum_a004477()) {
+ /*
+ * When reset is issued while any ULPI transaction is ongoing
+ * then it may result to corruption of ULPI Function Control
+ * Register which eventually causes phy clock to enter low
+ * power mode which stops the clock. Thus delay is required
+ * before reset to let ongoing ULPI transaction complete.
+ */
+ udelay(1);
+ }
return 0;
}
diff --git a/include/fsl_usb.h b/include/fsl_usb.h
index 33d9f03..8e3dded 100644
--- a/include/fsl_usb.h
+++ b/include/fsl_usb.h
@@ -209,6 +209,30 @@ static inline bool has_erratum_a005697(void)
return false;
}
+static inline bool has_erratum_a004477(void)
+{
+ u32 svr = get_svr();
+ u32 soc = SVR_SOC_VER(svr);
+
+ switch (soc) {
+ case SVR_P1010:
+ return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0);
+ case SVR_P1022:
+ case SVR_9131:
+ case SVR_9132:
+ return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1);
+ case SVR_P2020:
+ return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0) ||
+ IS_SVR_REV(svr, 2, 1);
+ case SVR_B4860:
+ case SVR_B4420:
+ return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0);
+ case SVR_P4080:
+ return IS_SVR_REV(svr, 2, 0) || IS_SVR_REV(svr, 3, 0);
+ }
+
+ return false;
+}
#else
static inline bool has_dual_phy(void)
{
@@ -239,5 +263,10 @@ static inline bool has_erratum_a005697(void)
{
return false;
}
+
+static inline bool has_erratum_a004477(void)
+{
+ return false;
+}
#endif
#endif /*_ASM_FSL_USB_H_ */