xHC reports supported maximum number of ports in the HCSPARAMS1 register, so it's unnecessary to use a hardcoded config option CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS.
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
drivers/usb/host/xhci.c | 8 +++++--- drivers/usb/host/xhci.h | 4 +--- 2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 2acb0e6..8631e27 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -668,12 +668,14 @@ static int xhci_submit_root(struct usb_device *udev, unsigned long pipe, uint32_t reg; volatile uint32_t *status_reg; struct xhci_ctrl *ctrl = xhci_get_ctrl(udev); + struct xhci_hccr *hccr = ctrl->hccr; struct xhci_hcor *hcor = ctrl->hcor; + int max_ports = HCS_MAX_PORTS(xhci_readl(&hccr->cr_hcsparams1));
if ((req->requesttype & USB_RT_PORT) && - le16_to_cpu(req->index) > CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS) { - printf("The request port(%d) is not configured\n", - le16_to_cpu(req->index) - 1); + le16_to_cpu(req->index) > max_ports) { + printf("The request port(%d) exceeds maximum port number\n", + le16_to_cpu(req->index) - 1); return -EINVAL; }
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 3cf08e4..b9602ba 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -172,9 +172,7 @@ struct xhci_hcor { volatile uint64_t or_dcbaap; volatile uint32_t or_config; volatile uint32_t reserved_2[241]; - struct xhci_hcor_port_regs portregs[CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS]; - - uint32_t reserved_4[CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS * 254]; + struct xhci_hcor_port_regs portregs[MAX_HC_PORTS]; };
/* USBCMD - USB command - command bitmasks */