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usb: xhci: zynqmp: Add support for DM_USB

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The patch is adding support for DM_USB for xhci driver.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2018-05-18 13:15:07 +02:00 • committed by Marek Vasut
parent 49d674547c
commit 41a3d4fda4
1 changed files with 69 additions and 0 deletions
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69
drivers/usb/host/xhci-zynqmp.c
View file

@ -10,6 +10,7 @@
*/
#include <common.h>
#include <dm.h>
#include <usb.h>
#include <linux/errno.h>
#include <asm/arch-zynqmp/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