diff options
| -rw-r--r-- | drivers/usb/common/fsl-errata.c | 26 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-fsl.c | 13 | ||||
| -rw-r--r-- | include/fsl_usb.h | 1 | ||||
| -rw-r--r-- | include/linux/usb/dwc3.h | 1 |
4 files changed, 41 insertions, 0 deletions
diff --git a/drivers/usb/common/fsl-errata.c b/drivers/usb/common/fsl-errata.c index 183bf2ba42..f2bffba35e 100644 --- a/drivers/usb/common/fsl-errata.c +++ b/drivers/usb/common/fsl-errata.c @@ -190,4 +190,30 @@ bool has_erratum_a008751(void) return false; } +bool has_erratum_a010151(void) +{ + u32 svr = get_svr(); + u32 soc = SVR_SOC_VER(svr); + + switch (soc) { +#ifdef CONFIG_ARM64 + case SVR_LS2080A: + case SVR_LS2085A: + case SVR_LS1046A: + case SVR_LS1012A: + return IS_SVR_REV(svr, 1, 0); + case SVR_LS1043A: + return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1); +#endif +#ifdef CONFIG_LS102XA + case SOC_VER_LS1020: + case SOC_VER_LS1021: + case SOC_VER_LS1022: + case SOC_VER_SLS1020: + return IS_SVR_REV(svr, 2, 0); +#endif + } + return false; +} + #endif diff --git a/drivers/usb/host/xhci-fsl.c b/drivers/usb/host/xhci-fsl.c index 2529d0eb13..798c358fd9 100644 --- a/drivers/usb/host/xhci-fsl.c +++ b/drivers/usb/host/xhci-fsl.c @@ -84,6 +84,19 @@ static int fsl_xhci_core_init(struct fsl_xhci *fsl_xhci) /* Change beat burst and outstanding pipelined transfers requests */ fsl_xhci_set_beat_burst_length(fsl_xhci->dwc3_reg); + /* + * A-010151: The dwc3 phy TSMC 28-nm HPM 0.9/1.8 V does not + * reliably support Rx Detect in P3 mode(P3 is the default + * setting). Therefore, some USB3.0 devices may not be detected + * reliably in Super Speed mode. So, USB controller to configure + * USB in P2 mode whenever the Receive Detect feature is required. + * whenever the Receive Detect feature is required. + */ + if (has_erratum_a010151()) + clrsetbits_le32(&fsl_xhci->dwc3_reg->g_usb3pipectl[0], + DWC3_GUSB3PIPECTL_DISRXDETP3, + DWC3_GUSB3PIPECTL_DISRXDETP3); + return ret; } diff --git a/include/fsl_usb.h b/include/fsl_usb.h index fc72fb9384..73235b8c73 100644 --- a/include/fsl_usb.h +++ b/include/fsl_usb.h @@ -95,5 +95,6 @@ bool has_erratum_a007792(void); bool has_erratum_a005697(void); bool has_erratum_a004477(void); bool has_erratum_a008751(void); +bool has_erratum_a010151(void); #endif #endif /*_ASM_FSL_USB_H_ */ diff --git a/include/linux/usb/dwc3.h b/include/linux/usb/dwc3.h index a0274461cc..c1b23b2f1b 100644 --- a/include/linux/usb/dwc3.h +++ b/include/linux/usb/dwc3.h @@ -198,6 +198,7 @@ struct dwc3 { /* offset: 0xC100 */ /* Global USB3 PIPE Control Register */ #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31) +#define DWC3_GUSB3PIPECTL_DISRXDETP3 (1 << 28) #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17) /* Global TX Fifo Size Register */ |