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usb: xhci: Change MAX_HC_PORTS to 255

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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>
This commit is contained in:
Bin Meng 2017-07-19 21:50:02 +08:00 committed by Marek Vasut
parent 98ba3d6c23
commit 1bdcd9019d
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/host/xhci.h
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@ -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