Merge tag 'u-boot-atmel-fixes-2020.07-a' of https://gitlab.denx.de/u-boot/custodians...

[oweals/u-boot.git] / drivers / usb / host / ehci-zynq.c

diff --git a/drivers/usb/host/ehci-zynq.c b/drivers/usb/host/ehci-zynq.c
index 7770d05646a6974f5e69f48d9ea2eddbcfb13dea..939c30999eeb18b24f7a9273520491e731675b0d 100644 (file)
--- a/drivers/usb/host/ehci-zynq.c
+++ b/drivers/usb/host/ehci-zynq.c
@@ -1,61 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014, Xilinx, Inc
  *
  * USB Low level initialization(Specific to zynq)
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
+#include <dm.h>
+#include <usb.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/io.h>
-#include <usb.h>
-#include <usb/ehci-fsl.h>
+#include <usb/ehci-ci.h>
 #include <usb/ulpi.h>
 
 #include "ehci.h"
 
-#define ZYNQ_USB_USBCMD_RST                    0x0000002
-#define ZYNQ_USB_USBCMD_STOP                   0x0000000
-#define ZYNQ_USB_NUM_MIO                       12
+struct zynq_ehci_priv {
+       struct ehci_ctrl ehcictrl;
+       struct usb_ehci *ehci;
+};
 
-/*
- * Create the appropriate control structures to manage
- * a new EHCI host controller.
- */
-int ehci_hcd_init(int index,  enum usb_init_type init, struct ehci_hccr **hccr,
-                 struct ehci_hcor **hcor)
+static int ehci_zynq_ofdata_to_platdata(struct udevice *dev)
 {
-       struct usb_ehci *ehci;
+       struct zynq_ehci_priv *priv = dev_get_priv(dev);
+
+       priv->ehci = (struct usb_ehci *)devfdt_get_addr_ptr(dev);
+       if (!priv->ehci)
+               return -EINVAL;
+
+       return 0;
+}
+
+static int ehci_zynq_probe(struct udevice *dev)
+{
+       struct usb_platdata *plat = dev_get_platdata(dev);
+       struct zynq_ehci_priv *priv = dev_get_priv(dev);
+       struct ehci_hccr *hccr;
+       struct ehci_hcor *hcor;
        struct ulpi_viewport ulpi_vp;
-       int ret, mio_usb;
        /* Used for writing the ULPI data address */
        struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
+       int ret;
 
-       if (!index) {
-               mio_usb = zynq_slcr_get_mio_pin_status("usb0");
-               if (mio_usb != ZYNQ_USB_NUM_MIO) {
-                       printf("usb0 wrong num MIO: %d, Index %d\n", mio_usb,
-                              index);
-                       return -1;
-               }
-               ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR0;
-       } else {
-               mio_usb = zynq_slcr_get_mio_pin_status("usb1");
-               if (mio_usb != ZYNQ_USB_NUM_MIO) {
-                       printf("usb1 wrong num MIO: %d, Index %d\n", mio_usb,
-                              index);
-                       return -1;
-               }
-               ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR1;
-       }
-
-       *hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
-       *hcor = (struct ehci_hcor *)((uint32_t) *hccr +
-                       HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
+       hccr = (struct ehci_hccr *)((uint32_t)&priv->ehci->caplength);
+       hcor = (struct ehci_hcor *)((uint32_t) hccr +
+                       HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
 
-       ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint;
+       ulpi_vp.viewport_addr = (u32)&priv->ehci->ulpi_viewpoint;
        ulpi_vp.port_num = 0;
 
        ret = ulpi_init(&ulpi_vp);
@@ -77,28 +69,23 @@ int ehci_hcd_init(int index,  enum usb_init_type init, struct ehci_hccr **hccr,
        ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set,
                   ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 
-       return 0;
+       return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
 }
 
-/*
- * Destroy the appropriate control structures corresponding
- * the the EHCI host controller.
- */
-int ehci_hcd_stop(int index)
-{
-       struct usb_ehci *ehci;
-
-       if (!index)
-               ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR0;
-       else
-               ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR1;
-
-       /* Stop controller */
-       writel(ZYNQ_USB_USBCMD_STOP, &ehci->usbcmd);
-       udelay(1000);
-
-       /* Initiate controller reset */
-       writel(ZYNQ_USB_USBCMD_RST, &ehci->usbcmd);
-
-       return 0;
-}
+static const struct udevice_id ehci_zynq_ids[] = {
+       { .compatible = "xlnx,zynq-usb-2.20a" },
+       { }
+};
+
+U_BOOT_DRIVER(ehci_zynq) = {
+       .name   = "ehci_zynq",
+       .id     = UCLASS_USB,
+       .of_match = ehci_zynq_ids,
+       .ofdata_to_platdata = ehci_zynq_ofdata_to_platdata,
+       .probe = ehci_zynq_probe,
+       .remove = ehci_deregister,
+       .ops    = &ehci_usb_ops,
+       .platdata_auto_alloc_size = sizeof(struct usb_platdata),
+       .priv_auto_alloc_size = sizeof(struct zynq_ehci_priv),
+       .flags  = DM_FLAG_ALLOC_PRIV_DMA,
+};