The patch is adding support for DM_USB for xhci driver.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Changes in v2: None
drivers/usb/host/xhci-zynqmp.c | 69 ++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+)
diff --git a/drivers/usb/host/xhci-zynqmp.c b/drivers/usb/host/xhci-zynqmp.c index b1ade582aef6..526a42a9a58a 100644 --- a/drivers/usb/host/xhci-zynqmp.c +++ b/drivers/usb/host/xhci-zynqmp.c @@ -10,6 +10,7 @@ */
#include <common.h> +#include <dm.h> #include <usb.h> #include <linux/errno.h> #include <asm/arch/hardware.h> @@ -54,13 +55,23 @@ #define USBOTGSS_IRQ_SET_1_DMADISABLECLR_EN BIT(17)
struct zynqmp_xhci { +#ifdef CONFIG_DM_USB + struct usb_platdata usb_plat; +#endif + struct xhci_ctrl ctrl; struct xhci_hccr *hcd; struct dwc3 *dwc3_reg; };
+#ifdef CONFIG_DM_USB +struct zynqmp_xhci_platdata { + fdt_addr_t hcd_base; +}; +#else static struct zynqmp_xhci zynqmp_xhci;
unsigned long ctr_addr[] = CONFIG_ZYNQMP_XHCI_LIST; +#endif
static int zynqmp_xhci_core_init(struct zynqmp_xhci *zynqmp_xhci) { @@ -78,6 +89,7 @@ static int zynqmp_xhci_core_init(struct zynqmp_xhci *zynqmp_xhci) return ret; }
+#ifndef CONFIG_DM_USB int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) { struct zynqmp_xhci *ctx = &zynqmp_xhci; @@ -111,6 +123,7 @@ int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
return ret; } +#endif
void xhci_hcd_stop(int index) { @@ -121,3 +134,59 @@ void xhci_hcd_stop(int index)
return; } + +#ifdef CONFIG_DM_USB +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, +}; +#endif