On 8/19/19 8:10 AM, Sherry Sun wrote:
> Add the USB3 host driver for NXP imx8 platform, and the
> cadence IP is in it. The USB3 host driver support DM
> mode, it will probe USB3 host node in dts.
>
> Signed-off-by: Sherry Sun <sherry....@nxp.com>
[...]
> +static void xhci_imx8_get_reg_addr(struct udevice *dev)
> +{
> + imx8_data.usb3_ctrl_base =
> + (void __iomem *)devfdt_get_addr_index(dev, 0);
> + imx8_data.usb3_core_base =
> + (void __iomem *)devfdt_get_addr_index(dev, 4);
> +}
Inline this.
Also, look at drivers/mtd/renesas_rpc_hf.c to handle both 32bit and
64bit DTs with multiple "reg" entries.
[...]
> +static const struct udevice_id xhci_usb_ids[] = {
> + { .compatible = "cdns,usb3-host", },
https://lore.kernel.org/patchwork/patch/1059917/ would suggest that
cdns,usb3-1.0.0 is the compatible. But I might be wrong.
> + { }
> +};
> +
> +U_BOOT_DRIVER(xhci_imx8) = {
> + .name = "xhci_imx8",
> + .id = UCLASS_USB,
> + .of_match = xhci_usb_ids,
> + .probe = xhci_imx8_probe,
> + .remove = xhci_imx8_remove,
> + .ops = &xhci_usb_ops,
> + .platdata_auto_alloc_size = sizeof(struct usb_platdata),
> + .priv_auto_alloc_size = sizeof(struct xhci_ctrl),
> + .flags = DM_FLAG_ALLOC_PRIV_DMA,
I think you also need DM_FLAG_OS_PREPARE to trigger .remove before
booting Linux, but I might be wrong. Please check that.
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