HCSPARAMS1:MaxPorts field specifies the maximum port number value, and its valid values are in the range of 1 to 255.
Signed-off-by: Bin Meng bmeng.cn@gmail.com Reviewed-by: Simon Glass sjg@chromium.org Reviewed-by: Stefan Roese sr@denx.de Tested-by: Stefan Roese sr@denx.de ---
Changes in v4: None Changes in v3: None Changes in v2: None
drivers/usb/host/xhci.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 32dd611..3cf08e4 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -30,7 +30,7 @@ /* Max number of USB devices for any host controller - limit in section 6.1 */ #define MAX_HC_SLOTS 256 /* Section 5.3.3 - MaxPorts */ -#define MAX_HC_PORTS 127 +#define MAX_HC_PORTS 255
/* Up to 16 ms to halt an HC */ #define XHCI_MAX_HALT_USEC (16*1000) @@ -102,8 +102,8 @@ struct xhci_hccr { #define HCS_MAX_INTRS(p) (((p) >> 8) & 0x7ff) /* bits 24:31, Max Ports - max value is 0x7F = 127 ports */ #define HCS_MAX_PORTS_SHIFT 24 -#define HCS_MAX_PORTS_MASK (0x7f << HCS_MAX_PORTS_SHIFT) -#define HCS_MAX_PORTS(p) (((p) >> 24) & 0x7f) +#define HCS_MAX_PORTS_MASK (0xff << HCS_MAX_PORTS_SHIFT) +#define HCS_MAX_PORTS(p) (((p) >> 24) & 0xff)
/* HCSPARAMS2 - hcs_params2 - bitmasks */ /* bits 0:3, frames or uframes that SW needs to queue transactions