diff options
| author | Suresh Gupta <suresh.gupta@freescale.com> | 2014-02-26 14:29:12 +0530 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-03-07 14:52:16 -0800 |
| commit | 9c641a872aa54edc97d69281f705819e96a5c90e (patch) | |
| tree | 11db11fdabd9982050f247542e3bbb6c74cc1249 /arch/powerpc/include | |
| parent | 7af9a07403e80415d097b4175616c7a7686b7deb (diff) | |
powerpc/usb: Workaround for erratum-A006261
USB spec says that the minimum disconnect threshold should be
over 525 mV. However, internal USB PHY threshold value is below
this specified value. Due to this some devices disconnect at
run-time. Hence, phy settings are tweaked to increased disconnect
threshold to be above 525mV by using this workaround.
Signed-off-by: Suresh Gupta <suresh.gupta@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/config_mpc85xx.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_errata.h | 34 |
2 files changed, 41 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 2f47b3fbd0..9a20b971c5 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -154,6 +154,7 @@ #define CONFIG_SYS_FSL_ERRATUM_IFC_A003399 #define CONFIG_SYS_FSL_ERRATUM_A005125 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x10 #define CONFIG_ESDHC_HC_BLK_ADDR @@ -386,6 +387,7 @@ #define CONFIG_SYS_FSL_ERRATUM_SRIO_A004034 #define CONFIG_SYS_FSL_ERRATUM_A004849 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x11 #elif defined(CONFIG_PPC_P3041) @@ -424,6 +426,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A004849 #define CONFIG_SYS_FSL_ERRATUM_A005812 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x20 #elif defined(CONFIG_PPC_P4080) /* also supports P4040 */ @@ -507,6 +510,7 @@ #define CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY 0xc0000000 #define CONFIG_SYS_FSL_ERRATUM_SRIO_A004034 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x20 #elif defined(CONFIG_PPC_P5040) @@ -538,6 +542,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A004699 #define CONFIG_SYS_FSL_ERRATUM_A004510 #define CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV 0x10 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY 0xf0000000 #define CONFIG_SYS_FSL_ERRATUM_A005812 @@ -633,6 +638,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A004468 #define CONFIG_SYS_FSL_ERRATUM_A_004934 #define CONFIG_SYS_FSL_ERRATUM_A005871 +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_ERRATUM_A006379 #define CONFIG_SYS_FSL_ERRATUM_A006593 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xfe000000 @@ -726,6 +732,7 @@ defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022) #define CONFIG_SYS_FSL_PCIE_COMPAT "fsl,qoriq-pcie-v2.4" #define CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY +#define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xfe000000 #elif defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081) diff --git a/arch/powerpc/include/asm/fsl_errata.h b/arch/powerpc/include/asm/fsl_errata.h index a59091977e..c9982cc8ec 100644 --- a/arch/powerpc/include/asm/fsl_errata.h +++ b/arch/powerpc/include/asm/fsl_errata.h @@ -26,4 +26,38 @@ static inline bool has_erratum_a006379(void) } #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A006261 +static inline bool has_erratum_a006261(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_P2041: + case SVR_P2040: + return IS_SVR_REV(svr, 1, 0) || + IS_SVR_REV(svr, 1, 1) || IS_SVR_REV(svr, 2, 1); + case SVR_P3041: + return IS_SVR_REV(svr, 1, 0) || + IS_SVR_REV(svr, 1, 1) || + IS_SVR_REV(svr, 2, 0) || IS_SVR_REV(svr, 2, 1); + case SVR_P5010: + case SVR_P5020: + case SVR_P5021: + return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0); + case SVR_T4240: + case SVR_T4160: + return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 2, 0); + case SVR_T1040: + return IS_SVR_REV(svr, 1, 0); + case SVR_P5040: + return IS_SVR_REV(svr, 1, 0); + } + + return false; +} +#endif + #endif |