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usb: dwc2_udc_otg: support 8-bit interface

PATCH Superseded Steve Rae 2 participants 4 messages Jun 6, 2016 – Jun 7, 2016

Subsystems (4)
USB Broadcom BCM2711/BCM2835 Arm architecture Broadcom BCM281XX/BCM11XXX/BCM216XX Arm architecture Broadcom iproc Arm architecture

v2 of 5 Superseded Latest is v5 →

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Steve Rae

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#0 lore raw

PATCH v2 1/1 usb: dwc2_udc_otg: support 8-bit interface

Define CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 to allow the physical interface to be 8-bit (rather than 16-bit).

Signed-off-by Steve Rae <[email protected]>

---
from [1] (line ~124)

    /* The Kona PHY supports an 8-bit wide UTMI interface */
    [...snip...]

    module_platform_driver(bcm_kona_usb2_driver);

    MODULE_ALIAS("platform:bcm-kona-usb2");
    MODULE_AUTHOR("Matt Porter <[email protected]>");
    MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver");
    MODULE_LICENSE("GPL v2");

[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/phy/phy-bcm-kona-usb2.c

Changes in v2:
- implement as Kconfig

 configs/bcm11130_defconfig        |  1 +
 configs/bcm11130_nand_defconfig   |  1 +
 configs/bcm28155_ap_defconfig     |  1 +
 configs/bcm28155_w1d_defconfig    |  1 +
 drivers/usb/gadget/Kconfig        | 10 ++++++++++
 drivers/usb/gadget/dwc2_udc_otg.c |  4 ++++
 6 files changed, 18 insertions(+)
configs/bcm11130_defconfig +1 -0
index b8ec8ac..2716868 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm11130_nand_defconfig +1 -0
index 6021fd2..8e01c52 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_ap_defconfig +1 -0
index 4404f32..eb58401 100644
@@ -17,6 +17,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_w1d_defconfig +1 -0
index 60eb328..35d04af 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
drivers/usb/gadget/Kconfig +10 -0
index a35a1c7..39e5c03 100644
@@ -52,6 +52,16 @@ config USB_GADGET_DWC2_OTG
 	  driver to operate in Peripheral mode. This option requires
 	  USB_GADGET to be enabled.
 
+if USB_GADGET_DWC2_OTG
+
+config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+	bool "DesignWare USB2.0 HS OTG controller PHY interface width"
+	help
+	  Set the Designware USB2.0 high-speed OTG controller
+	  PHY interface width to 8 bits, rather than the default (16 bits).
+
+endif # USB_GADGET_DWC2_OTG
+
 config CI_UDC
 	bool "ChipIdea device controller"
 	select USB_GADGET_DUALSPEED
drivers/usb/gadget/dwc2_udc_otg.c +4 -0
index cb20b00..a23278d 100644
@@ -415,7 +415,11 @@ static void reconfig_usbd(struct dwc2_udc *dev)
 		|0<<7		/* Ulpi DDR sel*/
 		|0<<6		/* 0: high speed utmi+, 1: full speed serial*/
 		|0<<4		/* 0: utmi+, 1:ulpi*/
+#ifdef CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+		|0<<3		/* phy i/f  0:8bit, 1:16bit*/
+#else
 		|1<<3		/* phy i/f  0:8bit, 1:16bit*/
+#endif
 		|0x7<<0;	/* HS/FS Timeout**/
 
 	if (dev->pdata->usb_gusbcfg)
Signature · 1 line
1.8.5
#1 lore raw

PATCH v2 1/1 usb: dwc2_udc_otg: support 8-bit interface

Quoted 4 lines · Steve Rae

Define CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 to allow the physical interface to be 8-bit (rather than 16-bit).

Signed-off-by Steve Rae <[email protected]>

Hi, minor nits below.

Quoted 67 lines

---
from [1] (line ~124)

    /* The Kona PHY supports an 8-bit wide UTMI interface */
    [...snip...]

    module_platform_driver(bcm_kona_usb2_driver);

    MODULE_ALIAS("platform:bcm-kona-usb2");
    MODULE_AUTHOR("Matt Porter <[email protected]>");
    MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver");
    MODULE_LICENSE("GPL v2");

[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/phy/phy-bcm-kona-usb2.c

Changes in v2:
- implement as Kconfig

 configs/bcm11130_defconfig        |  1 +
 configs/bcm11130_nand_defconfig   |  1 +
 configs/bcm28155_ap_defconfig     |  1 +
 configs/bcm28155_w1d_defconfig    |  1 +
 drivers/usb/gadget/Kconfig        | 10 ++++++++++
 drivers/usb/gadget/dwc2_udc_otg.c |  4 ++++
 6 files changed, 18 insertions(+)
configs/bcm11130_defconfig +1 -0
index b8ec8ac..2716868 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm11130_nand_defconfig +1 -0
index 6021fd2..8e01c52 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_ap_defconfig +1 -0
index 4404f32..eb58401 100644
@@ -17,6 +17,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_w1d_defconfig +0 -0
index 60eb328..35d04af 100644

configs/bcm28155_w1d_defconfig CONFIG_SYS_NS16550=y · line 24

Quoted 7 lines
configs/bcm28155_w1d_defconfig +1 -0
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1

Config file changes should go through the bcm tree or whoever picks those.

drivers/usb/gadget/Kconfig config USB_GADGET_DWC2_OTG · line 58

Quoted 12 lines
drivers/usb/gadget/Kconfig +4 -0
index a35a1c7..39e5c03 100644
@@ -52,6 +52,16 @@ config USB_GADGET_DWC2_OTG
 	  driver to operate in Peripheral mode. This option requires
 	  USB_GADGET to be enabled.
 
+if USB_GADGET_DWC2_OTG
+
+config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+	bool "DesignWare USB2.0 HS OTG controller PHY interface width"

Rename it to "8-bit PHY bus width", otherwise the boolean value won't make sense here.

Quoted 26 lines
drivers/usb/gadget/Kconfig +6 -0
+	help
+	  Set the Designware USB2.0 high-speed OTG controller
+	  PHY interface width to 8 bits, rather than the default (16 bits).
+
+endif # USB_GADGET_DWC2_OTG
+
 config CI_UDC
 	bool "ChipIdea device controller"
 	select USB_GADGET_DUALSPEED
drivers/usb/gadget/dwc2_udc_otg.c +4 -0
index cb20b00..a23278d 100644
@@ -415,7 +415,11 @@ static void reconfig_usbd(struct dwc2_udc *dev)
 		|0<<7		/* Ulpi DDR sel*/
 		|0<<6		/* 0: high speed utmi+, 1: full speed serial*/
 		|0<<4		/* 0: utmi+, 1:ulpi*/
+#ifdef CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+		|0<<3		/* phy i/f  0:8bit, 1:16bit*/
+#else
 		|1<<3		/* phy i/f  0:8bit, 1:16bit*/
+#endif
 		|0x7<<0;	/* HS/FS Timeout**/
 
 	if (dev->pdata->usb_gusbcfg)
Signature · 2 lines
Best regards,
Marek Vasut
author
#2 lore raw

PATCH v2 1/1 usb: dwc2_udc_otg: support 8-bit interface

Quoted 76 lines · Marek Vasut
Quoted 4 lines · Steve Rae

Define CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 to allow the physical interface to be 8-bit (rather than 16-bit).

Signed-off-by Steve Rae <[email protected]>

Hi, minor nits below.

Quoted 68 lines

---
from [1] (line ~124)

    /* The Kona PHY supports an 8-bit wide UTMI interface */
    [...snip...]

    module_platform_driver(bcm_kona_usb2_driver);

    MODULE_ALIAS("platform:bcm-kona-usb2");
    MODULE_AUTHOR("Matt Porter <[email protected]>");
    MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver");
    MODULE_LICENSE("GPL v2");

[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/phy/phy-bcm-kona-usb2.c

Changes in v2:
- implement as Kconfig

 configs/bcm11130_defconfig        |  1 +
 configs/bcm11130_nand_defconfig   |  1 +
 configs/bcm28155_ap_defconfig     |  1 +
 configs/bcm28155_w1d_defconfig    |  1 +
 drivers/usb/gadget/Kconfig        | 10 ++++++++++
 drivers/usb/gadget/dwc2_udc_otg.c |  4 ++++
 6 files changed, 18 insertions(+)
configs/bcm11130_defconfig +1 -0
index b8ec8ac..2716868 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm11130_nand_defconfig +1 -0
index 6021fd2..8e01c52 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_ap_defconfig +1 -0
index 4404f32..eb58401 100644
@@ -17,6 +17,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_w1d_defconfig +0 -0
index 60eb328..35d04af 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
Quoted 8 lines

configs/bcm28155_w1d_defconfig CONFIG_SYS_NS16550=y · line 24

Quoted 6 lines
configs/bcm28155_w1d_defconfig +1 -0
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1

Config file changes should go through the bcm tree or whoever picks those.

As far as I know, "nobody" is assigned to pick the "bcm tree" I've added Albert (arm) ?!?!?

Quoted 9 lines
Quoted 9 lines
drivers/usb/gadget/Kconfig +0 -0
index a35a1c7..39e5c03 100644
@@ -52,6 +52,16 @@ config USB_GADGET_DWC2_OTG
        driver to operate in Peripheral mode. This option requires
        USB_GADGET to be enabled.
Quoted 7 lines

drivers/usb/gadget/Kconfig config USB_GADGET_DWC2_OTG · line 58

Quoted 4 lines
drivers/usb/gadget/Kconfig +4 -0
+if USB_GADGET_DWC2_OTG
+
+config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+     bool "DesignWare USB2.0 HS OTG controller PHY interface width"

Rename it to "8-bit PHY bus width", otherwise the boolean value won't make sense here.

DONE = v3

Quoted 32 lines
Quoted 17 lines
drivers/usb/gadget/Kconfig +6 -0
+     help
+       Set the Designware USB2.0 high-speed OTG controller
+       PHY interface width to 8 bits, rather than the default (16 bits).
+
+endif # USB_GADGET_DWC2_OTG
+
 config CI_UDC
      bool "ChipIdea device controller"
      select USB_GADGET_DUALSPEED
drivers/usb/gadget/dwc2_udc_otg.c +0 -0
index cb20b00..a23278d 100644
@@ -415,7 +415,11 @@ static void reconfig_usbd(struct dwc2_udc *dev)
              |0<<7           /* Ulpi DDR sel*/

drivers/usb/gadget/dwc2_udc_otg.c static void reconfig_usbd(struct dwc2_udc *dev) · line 425

Quoted 10 lines
drivers/usb/gadget/dwc2_udc_otg.c +4 -0
              |0<<6           /* 0: high speed utmi+, 1: full speed serial*/
              |0<<4           /* 0: utmi+, 1:ulpi*/
+#ifdef CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+             |0<<3           /* phy i/f  0:8bit, 1:16bit*/
+#else
              |1<<3           /* phy i/f  0:8bit, 1:16bit*/
+#endif
              |0x7<<0;        /* HS/FS Timeout**/
 
      if (dev->pdata->usb_gusbcfg)

--
Best regards,
Marek Vasut

#3 lore raw

PATCH v2 1/1 usb: dwc2_udc_otg: support 8-bit interface

Quoted 85 lines · Steve Rae
Quoted 76 lines · Marek Vasut
Quoted 4 lines · Steve Rae

Define CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 to allow the physical interface to be 8-bit (rather than 16-bit).

Signed-off-by Steve Rae <[email protected]>

Hi, minor nits below.

Quoted 68 lines

---
from [1] (line ~124)

    /* The Kona PHY supports an 8-bit wide UTMI interface */
    [...snip...]

    module_platform_driver(bcm_kona_usb2_driver);

    MODULE_ALIAS("platform:bcm-kona-usb2");
    MODULE_AUTHOR("Matt Porter <[email protected]>");
    MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver");
    MODULE_LICENSE("GPL v2");

[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/phy/phy-bcm-kona-usb2.c

Changes in v2:
- implement as Kconfig

 configs/bcm11130_defconfig        |  1 +
 configs/bcm11130_nand_defconfig   |  1 +
 configs/bcm28155_ap_defconfig     |  1 +
 configs/bcm28155_w1d_defconfig    |  1 +
 drivers/usb/gadget/Kconfig        | 10 ++++++++++
 drivers/usb/gadget/dwc2_udc_otg.c |  4 ++++
 6 files changed, 18 insertions(+)
configs/bcm11130_defconfig +1 -0
index b8ec8ac..2716868 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm11130_nand_defconfig +1 -0
index 6021fd2..8e01c52 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_ap_defconfig +1 -0
index 4404f32..eb58401 100644
@@ -17,6 +17,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1
configs/bcm28155_w1d_defconfig +0 -0
index 60eb328..35d04af 100644
@@ -18,6 +18,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
Quoted 8 lines

configs/bcm28155_w1d_defconfig CONFIG_SYS_NS16550=y · line 24

Quoted 6 lines
configs/bcm28155_w1d_defconfig +1 -0
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Broadcom Corporation"
 CONFIG_G_DNL_VENDOR_NUM=0x18d1

Config file changes should go through the bcm tree or whoever picks those.

Quoted 2 lines

As far as I know, "nobody" is assigned to pick the "bcm tree" I've added Albert (arm) ?!?!?

Yeah, either Albert or Tom then. Still ... this might be an indication that this situation needs to be fixed ;-)

Quoted 8 lines
Quoted 8 lines
Quoted 8 lines
drivers/usb/gadget/Kconfig +0 -0
index a35a1c7..39e5c03 100644
@@ -52,6 +52,16 @@ config USB_GADGET_DWC2_OTG
        driver to operate in Peripheral mode. This option requires
        USB_GADGET to be enabled.
Quoted 8 lines
Quoted 7 lines

drivers/usb/gadget/Kconfig config USB_GADGET_DWC2_OTG · line 58

Quoted 4 lines
drivers/usb/gadget/Kconfig +4 -0
+if USB_GADGET_DWC2_OTG
+
+config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+     bool "DesignWare USB2.0 HS OTG controller PHY interface width"

Rename it to "8-bit PHY bus width", otherwise the boolean value won't make sense here.

DONE = v3

Thanks

Quoted 31 lines
Quoted 31 lines
Quoted 16 lines
drivers/usb/gadget/Kconfig +6 -0
+     help
+       Set the Designware USB2.0 high-speed OTG controller
+       PHY interface width to 8 bits, rather than the default (16 bits).
+
+endif # USB_GADGET_DWC2_OTG
+
 config CI_UDC
      bool "ChipIdea device controller"
      select USB_GADGET_DUALSPEED
drivers/usb/gadget/dwc2_udc_otg.c +0 -0
index cb20b00..a23278d 100644
@@ -415,7 +415,11 @@ static void reconfig_usbd(struct dwc2_udc *dev)
              |0<<7           /* Ulpi DDR sel*/

drivers/usb/gadget/dwc2_udc_otg.c static void reconfig_usbd(struct dwc2_udc *dev) · line 425

Quoted 10 lines
drivers/usb/gadget/dwc2_udc_otg.c +4 -0
              |0<<6           /* 0: high speed utmi+, 1: full speed serial*/
              |0<<4           /* 0: utmi+, 1:ulpi*/
+#ifdef CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
+             |0<<3           /* phy i/f  0:8bit, 1:16bit*/
+#else
              |1<<3           /* phy i/f  0:8bit, 1:16bit*/
+#endif
              |0x7<<0;        /* HS/FS Timeout**/
 
      if (dev->pdata->usb_gusbcfg)

--
Best regards,
Marek Vasut

Signature · 2 lines
Best regards,
Marek Vasut