usb: ehci: fsl: Add code to use CONFIG_DM_USB

Adds code to use driver model for USB EHCI FSL driver

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index df3fa041b7fee48f8d335d8a9886e304f569f2c4..f5e3ae796e1cd0b149849616126fda28e5deabf2 100644 (file)
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc.
+ * (C) Copyright 2009, 2011, 2016 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
  *
@@ -16,16 +16,32 @@
 #include <hwconfig.h>
 #include <fsl_usb.h>
 #include <fdt_support.h>
+#include <dm.h>
 
 #include "ehci.h"
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1
 #endif
 
+#ifdef CONFIG_DM_USB
+struct ehci_fsl_priv {
+       struct ehci_ctrl ehci;
+       fdt_addr_t hcd_base;
+       char *phy_type;
+};
+#endif
+
 static void set_txfifothresh(struct usb_ehci *, u32);
+#ifdef CONFIG_DM_USB
+static int ehci_fsl_init(struct ehci_fsl_priv *priv, struct usb_ehci *ehci,
+                 struct ehci_hccr *hccr, struct ehci_hcor *hcor);
+#else
 static int ehci_fsl_init(int index, struct usb_ehci *ehci,
                         struct ehci_hccr *hccr, struct ehci_hcor *hcor);
+#endif
 
 /* Check USB PHY clock valid */
 static int usb_phy_clk_valid(struct usb_ehci *ehci)
@@ -39,6 +55,99 @@ static int usb_phy_clk_valid(struct usb_ehci *ehci)
        }
 }
 
+#ifdef CONFIG_DM_USB
+static int ehci_fsl_ofdata_to_platdata(struct udevice *dev)
+{
+       struct ehci_fsl_priv *priv = dev_get_priv(dev);
+       const void *prop;
+
+       prop = fdt_getprop(gd->fdt_blob, dev->of_offset, "phy_type",
+                          NULL);
+       if (prop) {
+               priv->phy_type = (char *)prop;
+               debug("phy_type %s\n", priv->phy_type);
+       }
+
+       return 0;
+}
+
+static int ehci_fsl_init_after_reset(struct ehci_ctrl *ctrl)
+{
+       struct usb_ehci *ehci = NULL;
+       struct ehci_fsl_priv *priv = container_of(ctrl, struct ehci_fsl_priv,
+                                                  ehci);
+
+       ehci = (struct usb_ehci *)priv->hcd_base;
+       if (ehci_fsl_init(priv, ehci, priv->ehci.hccr, priv->ehci.hcor) < 0)
+               return -ENXIO;
+
+       return 0;
+}
+
+static const struct ehci_ops fsl_ehci_ops = {
+       .init_after_reset = ehci_fsl_init_after_reset,
+};
+
+static int ehci_fsl_probe(struct udevice *dev)
+{
+       struct ehci_fsl_priv *priv = dev_get_priv(dev);
+       struct usb_ehci *ehci = NULL;
+       struct ehci_hccr *hccr;
+       struct ehci_hcor *hcor;
+
+       /*
+        * Get the base address for EHCI controller from the device node
+        */
+       priv->hcd_base = dev_get_addr(dev);
+       if (priv->hcd_base == FDT_ADDR_T_NONE) {
+               debug("Can't get the EHCI register base address\n");
+               return -ENXIO;
+       }
+       ehci = (struct usb_ehci *)priv->hcd_base;
+       hccr = (struct ehci_hccr *)(&ehci->caplength);
+       hcor = (struct ehci_hcor *)
+               ((u32)hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+       if (ehci_fsl_init(priv, ehci, hccr, hcor) < 0)
+               return -ENXIO;
+
+       debug("ehci-fsl: init hccr %x and hcor %x hc_length %d\n",
+             (u32)hccr, (u32)hcor,
+             (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+       return ehci_register(dev, hccr, hcor, &fsl_ehci_ops, 0, USB_INIT_HOST);
+}
+
+static int ehci_fsl_remove(struct udevice *dev)
+{
+       int ret;
+
+       ret = ehci_deregister(dev);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static const struct udevice_id ehci_usb_ids[] = {
+       { .compatible = "fsl-usb2-mph", },
+       { .compatible = "fsl-usb2-dr", },
+       { }
+};
+
+U_BOOT_DRIVER(ehci_fsl) = {
+       .name   = "ehci_fsl",
+       .id     = UCLASS_USB,
+       .of_match = ehci_usb_ids,
+       .ofdata_to_platdata = ehci_fsl_ofdata_to_platdata,
+       .probe = ehci_fsl_probe,
+       .remove = ehci_fsl_remove,
+       .ops    = &ehci_usb_ops,
+       .platdata_auto_alloc_size = sizeof(struct usb_platdata),
+       .priv_auto_alloc_size = sizeof(struct ehci_fsl_priv),
+       .flags  = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#else
 /*
  * Create the appropriate control structures to manage
  * a new EHCI host controller.
@@ -77,13 +186,21 @@ int ehci_hcd_stop(int index)
 {
        return 0;
 }
+#endif
 
+#ifdef CONFIG_DM_USB
+static int ehci_fsl_init(struct ehci_fsl_priv *priv, struct usb_ehci *ehci,
+                 struct ehci_hccr *hccr, struct ehci_hcor *hcor)
+#else
 static int ehci_fsl_init(int index, struct usb_ehci *ehci,
                         struct ehci_hccr *hccr, struct ehci_hcor *hcor)
+#endif
 {
        const char *phy_type = NULL;
+#ifndef CONFIG_DM_USB
        size_t len;
        char current_usb_controller[5];
+#endif
 #ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
        char usb_phy[5];
 
@@ -98,9 +215,6 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci,
                 */
                mdelay(5);
        }
-       memset(current_usb_controller, '\0', 5);
-       snprintf(current_usb_controller, sizeof(current_usb_controller),
-                "usb%d", index+1);
 
        /* Set to Host mode */
        setbits_le32(&ehci->usbmode, CM_HOST);
@@ -109,9 +223,18 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci,
        out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
 
        /* Init phy */
+#ifdef CONFIG_DM_USB
+       if (priv->phy_type)
+               phy_type = priv->phy_type;
+#else
+       memset(current_usb_controller, '\0', 5);
+       snprintf(current_usb_controller, sizeof(current_usb_controller),
+                "usb%d", index+1);
+
        if (hwconfig_sub(current_usb_controller, "phy_type"))
                phy_type = hwconfig_subarg(current_usb_controller,
                                "phy_type", &len);
+#endif
        else
                phy_type = getenv("usb_phy_type");