mirror of
https://xff.cz/git/u-boot/
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22929e1266
Complete in the drivers directory the work started with
commit 83d290c56f ("SPDX: Convert all of our single
license tags to Linux Kernel style").
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Generic DWC3 Glue layer
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*
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* Copyright (C) 2016 - 2018 Xilinx, Inc.
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*
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* Based on dwc3-omap.c.
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/device-internal.h>
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#include <dm/lists.h>
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#include <linux/usb/otg.h>
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#include <linux/compat.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <malloc.h>
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#include <usb.h>
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#include "core.h"
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#include "gadget.h"
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#include "linux-compat.h"
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DECLARE_GLOBAL_DATA_PTR;
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int usb_gadget_handle_interrupts(int index)
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{
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struct dwc3 *priv;
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struct udevice *dev;
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int ret;
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ret = uclass_first_device(UCLASS_USB_DEV_GENERIC, &dev);
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if (!dev || ret) {
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pr_err("No USB device found\n");
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return -ENODEV;
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}
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priv = dev_get_priv(dev);
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dwc3_gadget_uboot_handle_interrupt(priv);
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return 0;
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}
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static int dwc3_generic_peripheral_probe(struct udevice *dev)
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{
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struct dwc3 *priv = dev_get_priv(dev);
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return dwc3_init(priv);
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}
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static int dwc3_generic_peripheral_remove(struct udevice *dev)
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{
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struct dwc3 *priv = dev_get_priv(dev);
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dwc3_remove(priv);
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return 0;
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}
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static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice *dev)
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{
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struct dwc3 *priv = dev_get_priv(dev);
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int node = dev_of_offset(dev);
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priv->regs = (void *)devfdt_get_addr(dev);
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priv->regs += DWC3_GLOBALS_REGS_START;
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priv->maximum_speed = usb_get_maximum_speed(node);
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if (priv->maximum_speed == USB_SPEED_UNKNOWN) {
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pr_err("Invalid usb maximum speed\n");
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return -ENODEV;
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}
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priv->dr_mode = usb_get_dr_mode(node);
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if (priv->dr_mode == USB_DR_MODE_UNKNOWN) {
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pr_err("Invalid usb mode setup\n");
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return -ENODEV;
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}
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return 0;
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}
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static int dwc3_generic_peripheral_bind(struct udevice *dev)
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{
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return device_probe(dev);
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}
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U_BOOT_DRIVER(dwc3_generic_peripheral) = {
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.name = "dwc3-generic-peripheral",
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.id = UCLASS_USB_DEV_GENERIC,
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.ofdata_to_platdata = dwc3_generic_peripheral_ofdata_to_platdata,
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.probe = dwc3_generic_peripheral_probe,
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.remove = dwc3_generic_peripheral_remove,
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.bind = dwc3_generic_peripheral_bind,
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.platdata_auto_alloc_size = sizeof(struct usb_platdata),
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.priv_auto_alloc_size = sizeof(struct dwc3),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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static int dwc3_generic_bind(struct udevice *parent)
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{
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const void *fdt = gd->fdt_blob;
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int node;
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int ret;
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for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node > 0;
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node = fdt_next_subnode(fdt, node)) {
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const char *name = fdt_get_name(fdt, node, NULL);
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enum usb_dr_mode dr_mode;
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struct udevice *dev;
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const char *driver;
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debug("%s: subnode name: %s\n", __func__, name);
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if (strncmp(name, "dwc3@", 4))
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continue;
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dr_mode = usb_get_dr_mode(node);
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switch (dr_mode) {
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case USB_DR_MODE_PERIPHERAL:
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case USB_DR_MODE_OTG:
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debug("%s: dr_mode: OTG or Peripheral\n", __func__);
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driver = "dwc3-generic-peripheral";
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break;
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case USB_DR_MODE_HOST:
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debug("%s: dr_mode: HOST\n", __func__);
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driver = "dwc3-generic-host";
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break;
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default:
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debug("%s: unsupported dr_mode\n", __func__);
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return -ENODEV;
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};
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ret = device_bind_driver_to_node(parent, driver, name,
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offset_to_ofnode(node), &dev);
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if (ret) {
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debug("%s: not able to bind usb device mode\n",
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__func__);
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return ret;
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}
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}
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return 0;
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}
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static const struct udevice_id dwc3_generic_ids[] = {
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{ .compatible = "xlnx,zynqmp-dwc3" },
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{ }
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};
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U_BOOT_DRIVER(dwc3_generic_wrapper) = {
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.name = "dwc3-generic-wrapper",
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.id = UCLASS_MISC,
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.of_match = dwc3_generic_ids,
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.bind = dwc3_generic_bind,
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};
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