usb: host: xhci-dwc3: Convert driver to DM

Add Driver Model support with use of generic DT
compatible string "snps,dwc3"

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index a4591f2e02ca95b1152212f81b553cc128ee5903..fb106f328a5bd312c3559725933c601737a4f194 100644 (file)
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -9,9 +9,15 @@
  */
 
 #include <common.h>
+#include <dm.h>
+#include <usb.h>
+
+#include "xhci.h"
 #include <asm/io.h>
 #include <linux/usb/dwc3.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
 {
        clrsetbits_le32(&dwc3_reg->g_ctl,
@@ -97,3 +103,43 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val)
        setbits_le32(&dwc3_reg->g_fladj, GFLADJ_30MHZ_REG_SEL |
                        GFLADJ_30MHZ(val));
 }
+
+static int xhci_dwc3_probe(struct udevice *dev)
+{
+       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+       struct xhci_hcor *hcor;
+       struct xhci_hccr *hccr;
+       struct dwc3 *dwc3_reg;
+
+       hccr = (struct xhci_hccr *)devfdt_get_addr(dev);
+       hcor = (struct xhci_hcor *)((phys_addr_t)hccr +
+                       HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
+
+       dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
+
+       dwc3_core_init(dwc3_reg);
+
+       return xhci_register(dev, hccr, hcor);
+}
+
+static int xhci_dwc3_remove(struct udevice *dev)
+{
+       return xhci_deregister(dev);
+}
+
+static const struct udevice_id xhci_dwc3_ids[] = {
+       { .compatible = "snps,dwc3" },
+       { }
+};
+
+U_BOOT_DRIVER(xhci_dwc3) = {
+       .name = "xhci-dwc3",
+       .id = UCLASS_USB,
+       .of_match = xhci_dwc3_ids,
+       .probe = xhci_dwc3_probe,
+       .remove = xhci_dwc3_remove,
+       .ops = &xhci_usb_ops,
+       .priv_auto_alloc_size = sizeof(struct xhci_ctrl),
+       .platdata_auto_alloc_size = sizeof(struct xhci_dwc3_platdata),
+       .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};