diff options
| -rw-r--r-- | drivers/usb/chipidea/bits.h | 5 | ||||
| -rw-r--r-- | drivers/usb/chipidea/ci.h | 1 | ||||
| -rw-r--r-- | drivers/usb/chipidea/core.c | 2 | ||||
| -rw-r--r-- | drivers/usb/chipidea/host.c | 3 | ||||
| -rw-r--r-- | include/linux/usb/chipidea.h | 1 |
5 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index 3cb9bda51ddf..831a8f645ea5 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -53,6 +53,11 @@ #define DEVICEADDR_USBADRA BIT(24) #define DEVICEADDR_USBADR (0x7FUL << 25) +/* TTCTRL */ +#define TTCTRL_TTHA_MASK (0x7fUL << 24) +/* Set non-zero value for internal TT Hub address representation */ +#define TTCTRL_TTHA (0x7fUL << 24) + /* PORTSC */ #define PORTSC_CCS BIT(0) #define PORTSC_CSC BIT(1) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 6d6200e37b71..df57e49ed4ef 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -50,6 +50,7 @@ enum ci_hw_regs { OP_USBINTR, OP_DEVICEADDR, OP_ENDPTLISTADDR, + OP_TTCTRL, OP_PORTSC, OP_DEVLC, OP_OTGSC, diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 3ad48e1c0c57..b0d01f26cd5e 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -84,6 +84,7 @@ static const u8 ci_regs_nolpm[] = { [OP_USBINTR] = 0x08U, [OP_DEVICEADDR] = 0x14U, [OP_ENDPTLISTADDR] = 0x18U, + [OP_TTCTRL] = 0x1CU, [OP_PORTSC] = 0x44U, [OP_DEVLC] = 0x84U, [OP_OTGSC] = 0x64U, @@ -106,6 +107,7 @@ static const u8 ci_regs_lpm[] = { [OP_USBINTR] = 0x08U, [OP_DEVICEADDR] = 0x14U, [OP_ENDPTLISTADDR] = 0x18U, + [OP_TTCTRL] = 0x1CU, [OP_PORTSC] = 0x44U, [OP_DEVLC] = 0x84U, [OP_OTGSC] = 0xC4U, diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 7161439def19..b01716c8c66b 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -159,6 +159,9 @@ static int host_start(struct ci_hdrc *ci) if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED) hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC); + if (ci->platdata->flags & CI_HDRC_SET_NON_ZERO_TTHA) + hw_write(ci, OP_TTCTRL, TTCTRL_TTHA_MASK, TTCTRL_TTHA); + return ret; disable_reg: diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index ab94f78c4dd1..d1e1285a971d 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -29,6 +29,7 @@ struct ci_hdrc_platform_data { #define CI_HDRC_IMX28_WRITE_FIX BIT(5) #define CI_HDRC_FORCE_FULLSPEED BIT(6) #define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) +#define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 |