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usb: xhci: zynqmp: Add support for DM_USB
The patch is adding support for DM_USB for xhci driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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1 changed files with 69 additions and 0 deletions
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@ -10,6 +10,7 @@
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*/
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#include <common.h>
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#include <dm.h>
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#include <usb.h>
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#include <linux/errno.h>
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#include <asm/arch-zynqmp/hardware.h>
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@ -54,13 +55,23 @@
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#define USBOTGSS_IRQ_SET_1_DMADISABLECLR_EN BIT(17)
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struct zynqmp_xhci {
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#ifdef CONFIG_DM_USB
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struct usb_platdata usb_plat;
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#endif
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struct xhci_ctrl ctrl;
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struct xhci_hccr *hcd;
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struct dwc3 *dwc3_reg;
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};
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#ifdef CONFIG_DM_USB
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struct zynqmp_xhci_platdata {
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fdt_addr_t hcd_base;
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};
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#else
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static struct zynqmp_xhci zynqmp_xhci;
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unsigned long ctr_addr[] = CONFIG_ZYNQMP_XHCI_LIST;
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#endif
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static int zynqmp_xhci_core_init(struct zynqmp_xhci *zynqmp_xhci)
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{
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@ -78,6 +89,7 @@ static int zynqmp_xhci_core_init(struct zynqmp_xhci *zynqmp_xhci)
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return ret;
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}
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#ifndef CONFIG_DM_USB
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int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
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{
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struct zynqmp_xhci *ctx = &zynqmp_xhci;
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@ -111,6 +123,7 @@ int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
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return ret;
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}
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#endif
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void xhci_hcd_stop(int index)
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{
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@ -121,3 +134,59 @@ void xhci_hcd_stop(int index)
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return;
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}
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#ifdef CONFIG_DM_USB
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static int xhci_usb_probe(struct udevice *dev)
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{
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struct zynqmp_xhci_platdata *plat = dev_get_platdata(dev);
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struct zynqmp_xhci *ctx = dev_get_priv(dev);
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struct xhci_hcor *hcor;
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int ret;
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ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
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ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET);
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ret = zynqmp_xhci_core_init(ctx);
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if (ret) {
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puts("XHCI: failed to initialize controller\n");
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return -EINVAL;
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}
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hcor = (struct xhci_hcor *)((ulong)ctx->hcd +
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HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase)));
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return xhci_register(dev, ctx->hcd, hcor);
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}
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static int xhci_usb_remove(struct udevice *dev)
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{
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return xhci_deregister(dev);
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}
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static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
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{
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struct zynqmp_xhci_platdata *plat = dev_get_platdata(dev);
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const void *blob = gd->fdt_blob;
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/* Get the base address for XHCI controller from the device node */
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plat->hcd_base = fdtdec_get_addr(blob, dev_of_offset(dev), "reg");
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if (plat->hcd_base == FDT_ADDR_T_NONE) {
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debug("Can't get the XHCI register base address\n");
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return -ENXIO;
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}
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return 0;
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}
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U_BOOT_DRIVER(dwc3_generic_host) = {
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.name = "dwc3-generic-host",
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.id = UCLASS_USB,
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.ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
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.probe = xhci_usb_probe,
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.remove = xhci_usb_remove,
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.ops = &xhci_usb_ops,
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.platdata_auto_alloc_size = sizeof(struct zynqmp_xhci_platdata),
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.priv_auto_alloc_size = sizeof(struct zynqmp_xhci),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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#endif
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