From: Patrice Chotard <patrice.chot...@st.com>
Add Driver Model support with use of generic DT
compatible string "snps,dwc3"
Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
---
drivers/usb/host/xhci-dwc3.c | 71 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index 33961cd..b0b9076 100644
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -9,9 +9,23 @@
*/
#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;
+
+struct xhci_dwc3_platdata {
+ phys_addr_t dwc3_regs;
+};
+
+struct xhci_dwc3_priv {
+ struct xhci_ctrl ctrl;
+};
+
void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
{
clrsetbits_le32(&dwc3_reg->g_ctl,
@@ -97,3 +111,60 @@ 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_ofdata_to_platdata(struct udevice *dev)
+{
+ struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+ u32 reg[2];
+
+ /* get the dwc3 register space base address */
+ if (fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev), "reg", reg,
+ ARRAY_SIZE(reg))) {
+ debug("dwc3 node has bad/missing 'reg' property\n");
+ return -FDT_ERR_NOTFOUND;
+ }
+ plat->dwc3_regs = reg[0];
+
+ return 0;
+}
+
+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 *)plat->dwc3_regs;
+ 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,
+ .ofdata_to_platdata = xhci_dwc3_ofdata_to_platdata,
+ .probe = xhci_dwc3_probe,
+ .remove = xhci_dwc3_remove,
+ .ops = &xhci_usb_ops,
+ .priv_auto_alloc_size = sizeof(struct xhci_dwc3_priv),
+ .platdata_auto_alloc_size = sizeof(struct xhci_dwc3_platdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
--
1.9.1
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