Add a TI MUSB peripheral driver with driver model support and the driver will be bound by the MUSB wrapper driver based on the dr_mode device tree entry.
Signed-off-by: Mugunthan V N mugunthanvnm@ti.com Reviewed-by: Simon Glass sjg@chromium.org --- drivers/usb/musb-new/musb_uboot.c | 2 + drivers/usb/musb-new/ti-musb.c | 109 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 111 insertions(+)
diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c index ea71f75947..46e3faeeaa 100644 --- a/drivers/usb/musb-new/musb_uboot.c +++ b/drivers/usb/musb-new/musb_uboot.c @@ -373,6 +373,7 @@ struct dm_usb_ops musb_usb_ops = { #endif /* CONFIG_DM_USB */ #endif /* CONFIG_USB_MUSB_HOST */
+#ifndef CONFIG_DM_USB #ifdef CONFIG_USB_MUSB_GADGET static struct musb *gadget;
@@ -453,3 +454,4 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
return 0; } +#endif /* CONFIG_DM_USB */ diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c index 1c15aa2a42..b8abc1dc58 100644 --- a/drivers/usb/musb-new/ti-musb.c +++ b/drivers/usb/musb-new/ti-musb.c @@ -14,6 +14,7 @@ #include <dm/device-internal.h> #include <dm/lists.h>
+#include <watchdog.h> #include <asm/io.h> #include <asm/omap_musb.h> #include "musb_uboot.h" @@ -142,6 +143,106 @@ static int ti_musb_ofdata_to_platdata(struct udevice *dev) return 0; }
+static struct musb *gadget; + +int usb_gadget_handle_interrupts(int index) +{ + WATCHDOG_RESET(); + if (!gadget || !gadget->isr) + return -EINVAL; + + return gadget->isr(0, gadget); +} + +int usb_gadget_register_driver(struct usb_gadget_driver *driver) +{ + int ret; + + if (!driver || driver->speed < USB_SPEED_FULL || !driver->bind || + !driver->setup) { + printf("Bad parameter.\n"); + return -EINVAL; + } + + if (!gadget) { + printf("Controller uninitialized\n"); + return -ENXIO; + } + + ret = musb_gadget_start(&gadget->g, driver); + if (ret < 0) + return ret; + + ret = driver->bind(&gadget->g); + if (ret < 0) + return ret; + + return 0; +} + +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +{ + if (driver->disconnect) + driver->disconnect(&gadget->g); + if (driver->unbind) + driver->unbind(&gadget->g); + return 0; +} + +static int ti_musb_peripheral_usb_probe(struct udevice *dev) +{ + struct ti_musb_platdata *platdata = dev_get_platdata(dev); + struct usb_bus_priv *priv = dev_get_uclass_priv(dev); + struct omap_musb_board_data *otg_board_data; + + otg_board_data = &platdata->otg_board_data; + + gadget = musb_init_controller(&platdata->plat, + (struct device *)otg_board_data, + platdata->base); + if (!gadget) { + error("gadget init failed\n"); + return -EIO; + } + + return 0; +} + +static int ti_musb_peripheral_remove(struct udevice *dev) +{ + musb_stop(gadget); + + return 0; +} + +static int ti_musb_peripheral_ofdata_to_platdata(struct udevice *dev) +{ + struct ti_musb_platdata *platdata = dev_get_platdata(dev); + const void *fdt = gd->fdt_blob; + int node = dev->of_offset; + int ret; + + ret = ti_musb_ofdata_to_platdata(dev); + if (ret) { + error("platdata dt parse error\n"); + return ret; + } + + platdata->plat.mode = MUSB_PERIPHERAL; + + return 0; +} + +U_BOOT_DRIVER(ti_musb_peripheral) = { + .name = "ti-musb-peripheral", + .id = UCLASS_USB_DEV_GENERIC, + .ofdata_to_platdata = ti_musb_peripheral_ofdata_to_platdata, + .probe = ti_musb_peripheral_usb_probe, + .remove = ti_musb_peripheral_remove, + .platdata_auto_alloc_size = sizeof(struct ti_musb_platdata), + .priv_auto_alloc_size = sizeof(struct musb), +}; + static int ti_musb_host_probe(struct udevice *dev) { struct musb_host_data *host = dev_get_priv(dev); @@ -222,7 +323,15 @@ static int ti_musb_wrapper_bind(struct udevice *parent) dr_mode = usb_get_dr_mode(node); switch (dr_mode) { case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: /* Bind MUSB device */ + ret = device_bind_driver_to_node(parent, + "ti-musb-peripheral", + name, node, &dev); + if (ret) { + error("musb - not able to bind usb device node\n"); + return ret; + } break; case USB_DR_MODE_HOST: /* Bind MUSB host */