diff options
| author | Nikhil Badola | 2014-10-17 09:12:07 +0530 |
|---|---|---|
| committer | York Sun | 2014-11-24 09:27:04 -0800 |
| commit | f3dff695e155469c2c62edb7f3d571df8b3b20ad (patch) | |
| tree | b956e0036e6a2e63df7a6b0dc7e9327cdc5b0834 | |
| parent | c26c80a1a4e2e2e7e4c9806e9123bf027c02f711 (diff) | |
drivers : usb: fsl: Implement usb Erratum A007798 workaround
Set TXFIFOTHRESH to adjust ddr pipeline delay for successful large
usb writes
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/cmd_errata.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/config_mpc85xx.h | 1 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 3 | ||||
| -rw-r--r-- | include/fsl_usb.h | 11 |
4 files changed, 17 insertions, 2 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 349ce52122c..fe3eb06324d 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -294,6 +294,10 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) if (has_erratum_a007075()) puts("Work-around for Erratum A007075 enabled\n"); #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A007798 + if (has_erratum_a007798()) + puts("Work-around for Erratum A007798 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 4c1774f503c..7860b40884d 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -678,6 +678,7 @@ #define CONFIG_SYS_FSL_ERRATUM_A006379 #define CONFIG_SYS_FSL_ERRATUM_A007186 #define CONFIG_SYS_FSL_ERRATUM_A006593 +#define CONFIG_SYS_FSL_ERRATUM_A007798 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xfe000000 #define CONFIG_SYS_FSL_SFP_VER_3_0 #define CONFIG_SYS_FSL_PCI_VER_3_X diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index d5361d7c459..8f554649e15 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -130,8 +130,7 @@ int ehci_hcd_init(int index, enum usb_init_type init, in_le32(&ehci->usbmode); - if (SVR_SOC_VER(get_svr()) == SVR_T4240 && - IS_SVR_REV(get_svr(), 2, 0)) + if (has_erratum_a007798()) set_txfifothresh(ehci, TXFIFOTHRESH); return 0; diff --git a/include/fsl_usb.h b/include/fsl_usb.h index 66f89345888..e4902aac96d 100644 --- a/include/fsl_usb.h +++ b/include/fsl_usb.h @@ -139,6 +139,12 @@ static inline bool has_erratum_a007075(void) } return false; } + +static inline bool has_erratum_a007798(void) +{ + return SVR_SOC_VER(get_svr()) == SVR_T4240 && + IS_SVR_REV(get_svr(), 2, 0); +} #else static inline bool has_erratum_a006261(void) { @@ -150,5 +156,10 @@ static inline bool has_erratum_a007075(void) return false; } +static inline bool has_erratum_a007798(void) +{ + return false; +} + #endif #endif /*_ASM_FSL_USB_H_ */ |