+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2015 Xilinx, Inc.
- *
- * Zynq USB HOST xHCI Controller
- *
- * Author: Siva Durga Prasad Paladugu<sivadur@xilinx.com>
- *
- * This file was reused from Freescale USB xHCI
- */
-
-#include <common.h>
-#include <dm.h>
-#include <usb.h>
-#include <linux/errno.h>
-#include <asm/arch/hardware.h>
-#include <linux/compat.h>
-#include <linux/usb/dwc3.h>
-#include "xhci.h"
-
-/* Declare global data pointer */
-/* Default to the ZYNQMP XHCI defines */
-#define USB3_PWRCTL_CLK_CMD_MASK 0x3FE000
-#define USB3_PWRCTL_CLK_FREQ_MASK 0xFFC
-#define USB3_PHY_PARTIAL_RX_POWERON BIT(6)
-#define USB3_PHY_RX_POWERON BIT(14)
-#define USB3_PHY_TX_POWERON BIT(15)
-#define USB3_PHY_TX_RX_POWERON (USB3_PHY_RX_POWERON | USB3_PHY_TX_POWERON)
-#define USB3_PWRCTL_CLK_CMD_SHIFT 14
-#define USB3_PWRCTL_CLK_FREQ_SHIFT 22
-
-/* USBOTGSS_WRAPPER definitions */
-#define USBOTGSS_WRAPRESET BIT(17)
-#define USBOTGSS_DMADISABLE BIT(16)
-#define USBOTGSS_STANDBYMODE_NO_STANDBY BIT(4)
-#define USBOTGSS_STANDBYMODE_SMRT BIT(5)
-#define USBOTGSS_STANDBYMODE_SMRT_WKUP (0x3 << 4)
-#define USBOTGSS_IDLEMODE_NOIDLE BIT(2)
-#define USBOTGSS_IDLEMODE_SMRT BIT(3)
-#define USBOTGSS_IDLEMODE_SMRT_WKUP (0x3 << 2)
-
-/* USBOTGSS_IRQENABLE_SET_0 bit */
-#define USBOTGSS_COREIRQ_EN BIT(1)
-
-/* USBOTGSS_IRQENABLE_SET_1 bits */
-#define USBOTGSS_IRQ_SET_1_IDPULLUP_FALL_EN BIT(1)
-#define USBOTGSS_IRQ_SET_1_DISCHRGVBUS_FALL_EN BIT(3)
-#define USBOTGSS_IRQ_SET_1_CHRGVBUS_FALL_EN BIT(4)
-#define USBOTGSS_IRQ_SET_1_DRVVBUS_FALL_EN BIT(5)
-#define USBOTGSS_IRQ_SET_1_IDPULLUP_RISE_EN BIT(8)
-#define USBOTGSS_IRQ_SET_1_DISCHRGVBUS_RISE_EN BIT(11)
-#define USBOTGSS_IRQ_SET_1_CHRGVBUS_RISE_EN BIT(12)
-#define USBOTGSS_IRQ_SET_1_DRVVBUS_RISE_EN BIT(13)
-#define USBOTGSS_IRQ_SET_1_OEVT_EN BIT(16)
-#define USBOTGSS_IRQ_SET_1_DMADISABLECLR_EN BIT(17)
-
-struct zynqmp_xhci {
- struct usb_platdata usb_plat;
- struct xhci_ctrl ctrl;
- struct xhci_hccr *hcd;
- struct dwc3 *dwc3_reg;
-};
-
-struct zynqmp_xhci_platdata {
- fdt_addr_t hcd_base;
-};
-
-static int zynqmp_xhci_core_init(struct zynqmp_xhci *zynqmp_xhci)
-{
- int ret = 0;
-
- ret = dwc3_core_init(zynqmp_xhci->dwc3_reg);
- if (ret) {
- debug("%s:failed to initialize core\n", __func__);
- return ret;
- }
-
- /* We are hard-coding DWC3 core to Host Mode */
- dwc3_set_mode(zynqmp_xhci->dwc3_reg, DWC3_GCTL_PRTCAP_HOST);
-
- return ret;
-}
-
-void xhci_hcd_stop(int index)
-{
- /*
- * Currently zynqmp socs do not support PHY shutdown from
- * sw. But this support may be added in future socs.
- */
-
- return;
-}
-
-static int xhci_usb_probe(struct udevice *dev)
-{
- struct zynqmp_xhci_platdata *plat = dev_get_platdata(dev);
- struct zynqmp_xhci *ctx = dev_get_priv(dev);
- struct xhci_hcor *hcor;
- int ret;
-
- ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
- ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET);
-
- ret = zynqmp_xhci_core_init(ctx);
- if (ret) {
- puts("XHCI: failed to initialize controller\n");
- return -EINVAL;
- }
-
- hcor = (struct xhci_hcor *)((ulong)ctx->hcd +
- HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase)));
-
- return xhci_register(dev, ctx->hcd, hcor);
-}
-
-static int xhci_usb_remove(struct udevice *dev)
-{
- return xhci_deregister(dev);
-}
-
-static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
-{
- struct zynqmp_xhci_platdata *plat = dev_get_platdata(dev);
- const void *blob = gd->fdt_blob;
-
- /* Get the base address for XHCI controller from the device node */
- plat->hcd_base = fdtdec_get_addr(blob, dev_of_offset(dev), "reg");
- if (plat->hcd_base == FDT_ADDR_T_NONE) {
- debug("Can't get the XHCI register base address\n");
- return -ENXIO;
- }
-
- return 0;
-}
-
-U_BOOT_DRIVER(dwc3_generic_host) = {
- .name = "dwc3-generic-host",
- .id = UCLASS_USB,
- .ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
- .probe = xhci_usb_probe,
- .remove = xhci_usb_remove,
- .ops = &xhci_usb_ops,
- .platdata_auto_alloc_size = sizeof(struct zynqmp_xhci_platdata),
- .priv_auto_alloc_size = sizeof(struct zynqmp_xhci),
- .flags = DM_FLAG_ALLOC_PRIV_DMA,
-};
projects / oweals / u-boot.git / commitdiff