| Message ID | f125fb68a257476436ec14ae31a8ac7c51dfdfd1.1526642103.git.michal.simek@xilinx.com |
|---|---|
| State | Accepted |
| Commit | 49d674547c5bf668802b4b6a24218205fed957f0 |
| Delegated to: | Marek Vasut |
| Headers | show |
| Series | Convert Xilinx ZynqMP to DM_USB with generic DWC3 glue logic driver | expand |
On 18/05/2018 13:15, Michal Simek wrote: > By enabling BLK by default this is the next driver which needs to get > support for DM_USB. Adding generic DWC3 glue logic which only > parse nodes and read device mode. Based on it probe proper > host/peripheral DWC3 drivers for it. > > Signed-off-by: Michal Simek <michal.simek@xilinx.com> > --- > > Changes in v2: > - Change style to avoid correct but not nice indentation by using char > *driver variable (suggested by Marek) > > drivers/usb/dwc3/Kconfig | 6 ++ > drivers/usb/dwc3/Makefile | 1 + > drivers/usb/dwc3/dwc3-generic.c | 157 ++++++++++++++++++++++++++++++++ > 3 files changed, 164 insertions(+) > create mode 100644 drivers/usb/dwc3/dwc3-generic.c > > diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig > index ae7fc1c6304d..943b7630eba4 100644 > --- a/drivers/usb/dwc3/Kconfig > +++ b/drivers/usb/dwc3/Kconfig > @@ -37,6 +37,12 @@ config USB_DWC3_OMAP > > Say 'Y' here if you have one such device > > +config USB_DWC3_GENERIC > + bool "Xilinx ZynqMP and similar Platforms" > + depends on DM_USB && USB_DWC3 > + help > + Some platforms can reuse this DWC3 generic implementation. > + > config USB_DWC3_UNIPHIER > bool "DesignWare USB3 Host Support on UniPhier Platforms" > depends on ARCH_UNIPHIER && USB_XHCI_DWC3 > diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile > index cd18b8d9ec02..60b5515a67da 100644 > --- a/drivers/usb/dwc3/Makefile > +++ b/drivers/usb/dwc3/Makefile > @@ -7,6 +7,7 @@ dwc3-y := core.o > obj-$(CONFIG_USB_DWC3_GADGET) += gadget.o ep0.o > > obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o > +obj-$(CONFIG_USB_DWC3_GENERIC) += dwc3-generic.o > obj-$(CONFIG_USB_DWC3_UNIPHIER) += dwc3-uniphier.o > obj-$(CONFIG_USB_DWC3_PHY_OMAP) += ti_usb_phy.o > obj-$(CONFIG_USB_DWC3_PHY_SAMSUNG) += samsung_usb_phy.o > diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c > new file mode 100644 > index 000000000000..ca63eac3d98e > --- /dev/null > +++ b/drivers/usb/dwc3/dwc3-generic.c > @@ -0,0 +1,157 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Generic DWC3 Glue layer > + * > + * Copyright (C) 2016 - 2018 Xilinx, Inc. > + * > + * Based on dwc3-omap.c. > + */ > + > +#include <common.h> > +#include <dm.h> > +#include <dm/device-internal.h> > +#include <dm/lists.h> > +#include <linux/usb/otg.h> > +#include <linux/compat.h> > +#include <linux/usb/ch9.h> > +#include <linux/usb/gadget.h> > +#include <malloc.h> > +#include <usb.h> > +#include "core.h" > +#include "gadget.h" > +#include "linux-compat.h" > + > +DECLARE_GLOBAL_DATA_PTR; > + > +int usb_gadget_handle_interrupts(int index) > +{ > + struct dwc3 *priv; > + struct udevice *dev; > + int ret; > + > + ret = uclass_first_device(UCLASS_USB_DEV_GENERIC, &dev); > + if (!dev || ret) { > + pr_err("No USB device found\n"); > + return -ENODEV; > + } > + > + priv = dev_get_priv(dev); > + > + dwc3_gadget_uboot_handle_interrupt(priv); > + > + return 0; > +} > + > +static int dwc3_generic_peripheral_probe(struct udevice *dev) > +{ > + struct dwc3 *priv = dev_get_priv(dev); > + > + return dwc3_init(priv); > +} > + > +static int dwc3_generic_peripheral_remove(struct udevice *dev) > +{ > + struct dwc3 *priv = dev_get_priv(dev); > + > + dwc3_remove(priv); > + > + return 0; > +} > + > +static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice *dev) > +{ > + struct dwc3 *priv = dev_get_priv(dev); > + int node = dev_of_offset(dev); > + > + priv->regs = (void *)devfdt_get_addr(dev); > + priv->regs += DWC3_GLOBALS_REGS_START; > + > + priv->maximum_speed = usb_get_maximum_speed(node); > + if (priv->maximum_speed == USB_SPEED_UNKNOWN) { > + pr_err("Invalid usb maximum speed\n"); > + return -ENODEV; > + } > + > + priv->dr_mode = usb_get_dr_mode(node); > + if (priv->dr_mode == USB_DR_MODE_UNKNOWN) { > + pr_err("Invalid usb mode setup\n"); > + return -ENODEV; > + } > + > + return 0; > +} > + > +static int dwc3_generic_peripheral_bind(struct udevice *dev) > +{ > + return device_probe(dev); This is wrong place to probe the device. What must be done is to probe the device when it is first used. I have a patch in progress for this. When it's cleaned up I'll share a repo so that you can have look and maybe pick it up. > +} > + > +U_BOOT_DRIVER(dwc3_generic_peripheral) = { > + .name = "dwc3-generic-peripheral", > + .id = UCLASS_USB_DEV_GENERIC, > + .ofdata_to_platdata = dwc3_generic_peripheral_ofdata_to_platdata, > + .probe = dwc3_generic_peripheral_probe, > + .remove = dwc3_generic_peripheral_remove, > + .bind = dwc3_generic_peripheral_bind, > + .platdata_auto_alloc_size = sizeof(struct usb_platdata), > + .priv_auto_alloc_size = sizeof(struct dwc3), > + .flags = DM_FLAG_ALLOC_PRIV_DMA, > +}; > + > +static int dwc3_generic_bind(struct udevice *parent) > +{ > + const void *fdt = gd->fdt_blob; > + int node; > + int ret; > + > + for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node > 0; > + node = fdt_next_subnode(fdt, node)) { > + const char *name = fdt_get_name(fdt, node, NULL); > + enum usb_dr_mode dr_mode; > + struct udevice *dev; > + const char *driver; > + > + debug("%s: subnode name: %s\n", __func__, name); > + if (strncmp(name, "dwc3@", 4)) > + continue; > + > + dr_mode = usb_get_dr_mode(node); > + > + switch (dr_mode) { > + case USB_DR_MODE_PERIPHERAL: > + case USB_DR_MODE_OTG: > + debug("%s: dr_mode: OTG or Peripheral\n", __func__); > + driver = "dwc3-generic-peripheral"; > + break; > + case USB_DR_MODE_HOST: > + debug("%s: dr_mode: HOST\n", __func__); > + driver = "dwc3-generic-host"; > + break; > + default: > + debug("%s: unsupported dr_mode\n", __func__); > + return -ENODEV; > + }; > + > + ret = device_bind_driver_to_node(parent, driver, name, > + offset_to_ofnode(node), &dev); > + if (ret) { > + debug("%s: not able to bind usb device mode\n", > + __func__); > + return ret; > + } > + } > + > + return 0; > +} > + > +static const struct udevice_id dwc3_generic_ids[] = { > + { .compatible = "xlnx,zynqmp-dwc3" }, > + { } > +}; > + > +U_BOOT_DRIVER(dwc3_generic_wrapper) = { > + .name = "dwc3-generic-wrapper", > + .id = UCLASS_MISC, > + .of_match = dwc3_generic_ids, > + .bind = dwc3_generic_bind, > +};
On 18/05/2018 15:24, Jean-Jacques Hiblot wrote: > > > On 18/05/2018 13:15, Michal Simek wrote: >> By enabling BLK by default this is the next driver which needs to get >> support for DM_USB. Adding generic DWC3 glue logic which only >> parse nodes and read device mode. Based on it probe proper >> host/peripheral DWC3 drivers for it. >> >> Signed-off-by: Michal Simek <michal.simek@xilinx.com> >> --- >> >> Changes in v2: >> - Change style to avoid correct but not nice indentation by using char >> *driver variable (suggested by Marek) >> >> drivers/usb/dwc3/Kconfig | 6 ++ >> drivers/usb/dwc3/Makefile | 1 + >> drivers/usb/dwc3/dwc3-generic.c | 157 ++++++++++++++++++++++++++++++++ >> 3 files changed, 164 insertions(+) >> create mode 100644 drivers/usb/dwc3/dwc3-generic.c >> >> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig >> index ae7fc1c6304d..943b7630eba4 100644 >> --- a/drivers/usb/dwc3/Kconfig >> +++ b/drivers/usb/dwc3/Kconfig >> @@ -37,6 +37,12 @@ config USB_DWC3_OMAP >> Say 'Y' here if you have one such device >> +config USB_DWC3_GENERIC >> + bool "Xilinx ZynqMP and similar Platforms" >> + depends on DM_USB && USB_DWC3 >> + help >> + Some platforms can reuse this DWC3 generic implementation. >> + >> config USB_DWC3_UNIPHIER >> bool "DesignWare USB3 Host Support on UniPhier Platforms" >> depends on ARCH_UNIPHIER && USB_XHCI_DWC3 >> diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile >> index cd18b8d9ec02..60b5515a67da 100644 >> --- a/drivers/usb/dwc3/Makefile >> +++ b/drivers/usb/dwc3/Makefile >> @@ -7,6 +7,7 @@ dwc3-y := core.o >> obj-$(CONFIG_USB_DWC3_GADGET) += gadget.o ep0.o >> obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o >> +obj-$(CONFIG_USB_DWC3_GENERIC) += dwc3-generic.o >> obj-$(CONFIG_USB_DWC3_UNIPHIER) += dwc3-uniphier.o >> obj-$(CONFIG_USB_DWC3_PHY_OMAP) += ti_usb_phy.o >> obj-$(CONFIG_USB_DWC3_PHY_SAMSUNG) += samsung_usb_phy.o >> diff --git a/drivers/usb/dwc3/dwc3-generic.c >> b/drivers/usb/dwc3/dwc3-generic.c >> new file mode 100644 >> index 000000000000..ca63eac3d98e >> --- /dev/null >> +++ b/drivers/usb/dwc3/dwc3-generic.c >> @@ -0,0 +1,157 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/* >> + * Generic DWC3 Glue layer >> + * >> + * Copyright (C) 2016 - 2018 Xilinx, Inc. >> + * >> + * Based on dwc3-omap.c. >> + */ >> + >> +#include <common.h> >> +#include <dm.h> >> +#include <dm/device-internal.h> >> +#include <dm/lists.h> >> +#include <linux/usb/otg.h> >> +#include <linux/compat.h> >> +#include <linux/usb/ch9.h> >> +#include <linux/usb/gadget.h> >> +#include <malloc.h> >> +#include <usb.h> >> +#include "core.h" >> +#include "gadget.h" >> +#include "linux-compat.h" >> + >> +DECLARE_GLOBAL_DATA_PTR; >> + >> +int usb_gadget_handle_interrupts(int index) >> +{ >> + struct dwc3 *priv; >> + struct udevice *dev; >> + int ret; >> + >> + ret = uclass_first_device(UCLASS_USB_DEV_GENERIC, &dev); >> + if (!dev || ret) { >> + pr_err("No USB device found\n"); >> + return -ENODEV; >> + } >> + >> + priv = dev_get_priv(dev); >> + >> + dwc3_gadget_uboot_handle_interrupt(priv); >> + >> + return 0; >> +} >> + >> +static int dwc3_generic_peripheral_probe(struct udevice *dev) >> +{ >> + struct dwc3 *priv = dev_get_priv(dev); >> + >> + return dwc3_init(priv); >> +} >> + >> +static int dwc3_generic_peripheral_remove(struct udevice *dev) >> +{ >> + struct dwc3 *priv = dev_get_priv(dev); >> + >> + dwc3_remove(priv); >> + >> + return 0; >> +} >> + >> +static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice >> *dev) >> +{ >> + struct dwc3 *priv = dev_get_priv(dev); >> + int node = dev_of_offset(dev); >> + >> + priv->regs = (void *)devfdt_get_addr(dev); >> + priv->regs += DWC3_GLOBALS_REGS_START; >> + >> + priv->maximum_speed = usb_get_maximum_speed(node); >> + if (priv->maximum_speed == USB_SPEED_UNKNOWN) { >> + pr_err("Invalid usb maximum speed\n"); >> + return -ENODEV; >> + } >> + >> + priv->dr_mode = usb_get_dr_mode(node); >> + if (priv->dr_mode == USB_DR_MODE_UNKNOWN) { >> + pr_err("Invalid usb mode setup\n"); >> + return -ENODEV; >> + } >> + >> + return 0; >> +} >> + >> +static int dwc3_generic_peripheral_bind(struct udevice *dev) >> +{ >> + return device_probe(dev); > This is wrong place to probe the device. > What must be done is to probe the device when it is first used. > I have a patch in progress for this. When it's cleaned up I'll share a > repo so that you can have look and maybe pick it up. Well the series is already applied. I'll send the patch to ML in this case. >> +} >> + >> +U_BOOT_DRIVER(dwc3_generic_peripheral) = { >> + .name = "dwc3-generic-peripheral", >> + .id = UCLASS_USB_DEV_GENERIC, >> + .ofdata_to_platdata = dwc3_generic_peripheral_ofdata_to_platdata, >> + .probe = dwc3_generic_peripheral_probe, >> + .remove = dwc3_generic_peripheral_remove, >> + .bind = dwc3_generic_peripheral_bind, >> + .platdata_auto_alloc_size = sizeof(struct usb_platdata), >> + .priv_auto_alloc_size = sizeof(struct dwc3), >> + .flags = DM_FLAG_ALLOC_PRIV_DMA, >> +}; >> + >> +static int dwc3_generic_bind(struct udevice *parent) >> +{ >> + const void *fdt = gd->fdt_blob; >> + int node; >> + int ret; >> + >> + for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node >> > 0; >> + node = fdt_next_subnode(fdt, node)) { >> + const char *name = fdt_get_name(fdt, node, NULL); >> + enum usb_dr_mode dr_mode; >> + struct udevice *dev; >> + const char *driver; >> + >> + debug("%s: subnode name: %s\n", __func__, name); >> + if (strncmp(name, "dwc3@", 4)) >> + continue; >> + >> + dr_mode = usb_get_dr_mode(node); >> + >> + switch (dr_mode) { >> + case USB_DR_MODE_PERIPHERAL: >> + case USB_DR_MODE_OTG: >> + debug("%s: dr_mode: OTG or Peripheral\n", __func__); >> + driver = "dwc3-generic-peripheral"; >> + break; >> + case USB_DR_MODE_HOST: >> + debug("%s: dr_mode: HOST\n", __func__); >> + driver = "dwc3-generic-host"; >> + break; >> + default: >> + debug("%s: unsupported dr_mode\n", __func__); >> + return -ENODEV; >> + }; >> + >> + ret = device_bind_driver_to_node(parent, driver, name, >> + offset_to_ofnode(node), &dev); >> + if (ret) { >> + debug("%s: not able to bind usb device mode\n", >> + __func__); >> + return ret; >> + } >> + } >> + >> + return 0; >> +} >> + >> +static const struct udevice_id dwc3_generic_ids[] = { >> + { .compatible = "xlnx,zynqmp-dwc3" }, >> + { } >> +}; >> + >> +U_BOOT_DRIVER(dwc3_generic_wrapper) = { >> + .name = "dwc3-generic-wrapper", >> + .id = UCLASS_MISC, >> + .of_match = dwc3_generic_ids, >> + .bind = dwc3_generic_bind, >> +}; > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot
On 18.5.2018 15:26, Jean-Jacques Hiblot wrote: > > > On 18/05/2018 15:24, Jean-Jacques Hiblot wrote: >> >> >> On 18/05/2018 13:15, Michal Simek wrote: >>> By enabling BLK by default this is the next driver which needs to get >>> support for DM_USB. Adding generic DWC3 glue logic which only >>> parse nodes and read device mode. Based on it probe proper >>> host/peripheral DWC3 drivers for it. >>> >>> Signed-off-by: Michal Simek <michal.simek@xilinx.com> >>> --- >>> >>> Changes in v2: >>> - Change style to avoid correct but not nice indentation by using char >>> *driver variable (suggested by Marek) >>> >>> drivers/usb/dwc3/Kconfig | 6 ++ >>> drivers/usb/dwc3/Makefile | 1 + >>> drivers/usb/dwc3/dwc3-generic.c | 157 ++++++++++++++++++++++++++++++++ >>> 3 files changed, 164 insertions(+) >>> create mode 100644 drivers/usb/dwc3/dwc3-generic.c >>> >>> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig >>> index ae7fc1c6304d..943b7630eba4 100644 >>> --- a/drivers/usb/dwc3/Kconfig >>> +++ b/drivers/usb/dwc3/Kconfig >>> @@ -37,6 +37,12 @@ config USB_DWC3_OMAP >>> Say 'Y' here if you have one such device >>> +config USB_DWC3_GENERIC >>> + bool "Xilinx ZynqMP and similar Platforms" >>> + depends on DM_USB && USB_DWC3 >>> + help >>> + Some platforms can reuse this DWC3 generic implementation. >>> + >>> config USB_DWC3_UNIPHIER >>> bool "DesignWare USB3 Host Support on UniPhier Platforms" >>> depends on ARCH_UNIPHIER && USB_XHCI_DWC3 >>> diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile >>> index cd18b8d9ec02..60b5515a67da 100644 >>> --- a/drivers/usb/dwc3/Makefile >>> +++ b/drivers/usb/dwc3/Makefile >>> @@ -7,6 +7,7 @@ dwc3-y := core.o >>> obj-$(CONFIG_USB_DWC3_GADGET) += gadget.o ep0.o >>> obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o >>> +obj-$(CONFIG_USB_DWC3_GENERIC) += dwc3-generic.o >>> obj-$(CONFIG_USB_DWC3_UNIPHIER) += dwc3-uniphier.o >>> obj-$(CONFIG_USB_DWC3_PHY_OMAP) += ti_usb_phy.o >>> obj-$(CONFIG_USB_DWC3_PHY_SAMSUNG) += samsung_usb_phy.o >>> diff --git a/drivers/usb/dwc3/dwc3-generic.c >>> b/drivers/usb/dwc3/dwc3-generic.c >>> new file mode 100644 >>> index 000000000000..ca63eac3d98e >>> --- /dev/null >>> +++ b/drivers/usb/dwc3/dwc3-generic.c >>> @@ -0,0 +1,157 @@ >>> +// SPDX-License-Identifier: GPL-2.0 >>> +/* >>> + * Generic DWC3 Glue layer >>> + * >>> + * Copyright (C) 2016 - 2018 Xilinx, Inc. >>> + * >>> + * Based on dwc3-omap.c. >>> + */ >>> + >>> +#include <common.h> >>> +#include <dm.h> >>> +#include <dm/device-internal.h> >>> +#include <dm/lists.h> >>> +#include <linux/usb/otg.h> >>> +#include <linux/compat.h> >>> +#include <linux/usb/ch9.h> >>> +#include <linux/usb/gadget.h> >>> +#include <malloc.h> >>> +#include <usb.h> >>> +#include "core.h" >>> +#include "gadget.h" >>> +#include "linux-compat.h" >>> + >>> +DECLARE_GLOBAL_DATA_PTR; >>> + >>> +int usb_gadget_handle_interrupts(int index) >>> +{ >>> + struct dwc3 *priv; >>> + struct udevice *dev; >>> + int ret; >>> + >>> + ret = uclass_first_device(UCLASS_USB_DEV_GENERIC, &dev); >>> + if (!dev || ret) { >>> + pr_err("No USB device found\n"); >>> + return -ENODEV; >>> + } >>> + >>> + priv = dev_get_priv(dev); >>> + >>> + dwc3_gadget_uboot_handle_interrupt(priv); >>> + >>> + return 0; >>> +} >>> + >>> +static int dwc3_generic_peripheral_probe(struct udevice *dev) >>> +{ >>> + struct dwc3 *priv = dev_get_priv(dev); >>> + >>> + return dwc3_init(priv); >>> +} >>> + >>> +static int dwc3_generic_peripheral_remove(struct udevice *dev) >>> +{ >>> + struct dwc3 *priv = dev_get_priv(dev); >>> + >>> + dwc3_remove(priv); >>> + >>> + return 0; >>> +} >>> + >>> +static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice >>> *dev) >>> +{ >>> + struct dwc3 *priv = dev_get_priv(dev); >>> + int node = dev_of_offset(dev); >>> + >>> + priv->regs = (void *)devfdt_get_addr(dev); >>> + priv->regs += DWC3_GLOBALS_REGS_START; >>> + >>> + priv->maximum_speed = usb_get_maximum_speed(node); >>> + if (priv->maximum_speed == USB_SPEED_UNKNOWN) { >>> + pr_err("Invalid usb maximum speed\n"); >>> + return -ENODEV; >>> + } >>> + >>> + priv->dr_mode = usb_get_dr_mode(node); >>> + if (priv->dr_mode == USB_DR_MODE_UNKNOWN) { >>> + pr_err("Invalid usb mode setup\n"); >>> + return -ENODEV; >>> + } >>> + >>> + return 0; >>> +} >>> + >>> +static int dwc3_generic_peripheral_bind(struct udevice *dev) >>> +{ >>> + return device_probe(dev); >> This is wrong place to probe the device. >> What must be done is to probe the device when it is first used. >> I have a patch in progress for this. When it's cleaned up I'll share a >> repo so that you can have look and maybe pick it up. > Well the series is already applied. I'll send the patch to ML in this case. Yes. Please cc me if you want to test something. Thanks, Michal
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index ae7fc1c6304d..943b7630eba4 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -37,6 +37,12 @@ config USB_DWC3_OMAP Say 'Y' here if you have one such device +config USB_DWC3_GENERIC + bool "Xilinx ZynqMP and similar Platforms" + depends on DM_USB && USB_DWC3 + help + Some platforms can reuse this DWC3 generic implementation. + config USB_DWC3_UNIPHIER bool "DesignWare USB3 Host Support on UniPhier Platforms" depends on ARCH_UNIPHIER && USB_XHCI_DWC3 diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index cd18b8d9ec02..60b5515a67da 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -7,6 +7,7 @@ dwc3-y := core.o obj-$(CONFIG_USB_DWC3_GADGET) += gadget.o ep0.o obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o +obj-$(CONFIG_USB_DWC3_GENERIC) += dwc3-generic.o obj-$(CONFIG_USB_DWC3_UNIPHIER) += dwc3-uniphier.o obj-$(CONFIG_USB_DWC3_PHY_OMAP) += ti_usb_phy.o obj-$(CONFIG_USB_DWC3_PHY_SAMSUNG) += samsung_usb_phy.o diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c new file mode 100644 index 000000000000..ca63eac3d98e --- /dev/null +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Generic DWC3 Glue layer + * + * Copyright (C) 2016 - 2018 Xilinx, Inc. + * + * Based on dwc3-omap.c. + */ + +#include <common.h> +#include <dm.h> +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <linux/usb/otg.h> +#include <linux/compat.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <malloc.h> +#include <usb.h> +#include "core.h" +#include "gadget.h" +#include "linux-compat.h" + +DECLARE_GLOBAL_DATA_PTR; + +int usb_gadget_handle_interrupts(int index) +{ + struct dwc3 *priv; + struct udevice *dev; + int ret; + + ret = uclass_first_device(UCLASS_USB_DEV_GENERIC, &dev); + if (!dev || ret) { + pr_err("No USB device found\n"); + return -ENODEV; + } + + priv = dev_get_priv(dev); + + dwc3_gadget_uboot_handle_interrupt(priv); + + return 0; +} + +static int dwc3_generic_peripheral_probe(struct udevice *dev) +{ + struct dwc3 *priv = dev_get_priv(dev); + + return dwc3_init(priv); +} + +static int dwc3_generic_peripheral_remove(struct udevice *dev) +{ + struct dwc3 *priv = dev_get_priv(dev); + + dwc3_remove(priv); + + return 0; +} + +static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice *dev) +{ + struct dwc3 *priv = dev_get_priv(dev); + int node = dev_of_offset(dev); + + priv->regs = (void *)devfdt_get_addr(dev); + priv->regs += DWC3_GLOBALS_REGS_START; + + priv->maximum_speed = usb_get_maximum_speed(node); + if (priv->maximum_speed == USB_SPEED_UNKNOWN) { + pr_err("Invalid usb maximum speed\n"); + return -ENODEV; + } + + priv->dr_mode = usb_get_dr_mode(node); + if (priv->dr_mode == USB_DR_MODE_UNKNOWN) { + pr_err("Invalid usb mode setup\n"); + return -ENODEV; + } + + return 0; +} + +static int dwc3_generic_peripheral_bind(struct udevice *dev) +{ + return device_probe(dev); +} + +U_BOOT_DRIVER(dwc3_generic_peripheral) = { + .name = "dwc3-generic-peripheral", + .id = UCLASS_USB_DEV_GENERIC, + .ofdata_to_platdata = dwc3_generic_peripheral_ofdata_to_platdata, + .probe = dwc3_generic_peripheral_probe, + .remove = dwc3_generic_peripheral_remove, + .bind = dwc3_generic_peripheral_bind, + .platdata_auto_alloc_size = sizeof(struct usb_platdata), + .priv_auto_alloc_size = sizeof(struct dwc3), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; + +static int dwc3_generic_bind(struct udevice *parent) +{ + const void *fdt = gd->fdt_blob; + int node; + int ret; + + for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node > 0; + node = fdt_next_subnode(fdt, node)) { + const char *name = fdt_get_name(fdt, node, NULL); + enum usb_dr_mode dr_mode; + struct udevice *dev; + const char *driver; + + debug("%s: subnode name: %s\n", __func__, name); + if (strncmp(name, "dwc3@", 4)) + continue; + + dr_mode = usb_get_dr_mode(node); + + switch (dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: + debug("%s: dr_mode: OTG or Peripheral\n", __func__); + driver = "dwc3-generic-peripheral"; + break; + case USB_DR_MODE_HOST: + debug("%s: dr_mode: HOST\n", __func__); + driver = "dwc3-generic-host"; + break; + default: + debug("%s: unsupported dr_mode\n", __func__); + return -ENODEV; + }; + + ret = device_bind_driver_to_node(parent, driver, name, + offset_to_ofnode(node), &dev); + if (ret) { + debug("%s: not able to bind usb device mode\n", + __func__); + return ret; + } + } + + return 0; +} + +static const struct udevice_id dwc3_generic_ids[] = { + { .compatible = "xlnx,zynqmp-dwc3" }, + { } +}; + +U_BOOT_DRIVER(dwc3_generic_wrapper) = { + .name = "dwc3-generic-wrapper", + .id = UCLASS_MISC, + .of_match = dwc3_generic_ids, + .bind = dwc3_generic_bind, +};
By enabling BLK by default this is the next driver which needs to get support for DM_USB. Adding generic DWC3 glue logic which only parse nodes and read device mode. Based on it probe proper host/peripheral DWC3 drivers for it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> --- Changes in v2: - Change style to avoid correct but not nice indentation by using char *driver variable (suggested by Marek) drivers/usb/dwc3/Kconfig | 6 ++ drivers/usb/dwc3/Makefile | 1 + drivers/usb/dwc3/dwc3-generic.c | 157 ++++++++++++++++++++++++++++++++ 3 files changed, 164 insertions(+) create mode 100644 drivers/usb/dwc3/dwc3-generic.c