sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

libpayload/usb: add USB 3.1 GEN2 support

Browse Source 
USB 3.1 GEN2 report speed type 4, add into speed enum.

BUG=b:139787920
BRANCH=N/A
TEST=Build libpayload and depthcharge on sarien and boot with
USB GEN2 HUB with USB disk. Check ultra speed device in cbmem log.

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ia0ef12b2f0d91bf0d0db766bbc9019de1614a4f4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35023
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Eric Lai
2019-08-22 12:41:12 +08:00
committed by Patrick Georgi
parent 1458777c3b
commit da10b9224a
4 changed files with 22 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
payloads/libpayload/drivers/usb/usbhub.c
View File

@@ -96,8 +96,8 @@ usb_hub_port_speed(usbdev_t *const dev, const int port)
int ret = get_status (dev, port, DR_PORT, sizeof(buf), buf);
if (ret >= 0 && (buf[0] & PORT_ENABLE)) {
/* SuperSpeed hubs can only have SuperSpeed devices. */
if (dev->speed == SUPER_SPEED)
return SUPER_SPEED;
if (is_usb_speed_ss(dev->speed))
return dev->speed;
/*[bit] 10 9 (USB 2.0 port status word)
* 0 0 full speed
@@ -176,7 +176,7 @@ usb_hub_port_initialize(usbdev_t *const dev, const int port)
void
usb_hub_init(usbdev_t *const dev)
{
int type = dev->speed == SUPER_SPEED ? 0x2a : 0x29; /* similar enough */
int type = is_usb_speed_ss(dev->speed) ? 0x2a : 0x29; /* similar enough */
hub_descriptor_t desc; /* won't fit the whole thing, we don't care */
if (get_descriptor(dev, gen_bmRequestType(device_to_host, class_type,
dev_recp), type, 0, &desc, sizeof(desc)) != sizeof(desc)) {
@@ -185,7 +185,7 @@ usb_hub_init(usbdev_t *const dev)
return;
}
if (dev->speed == SUPER_SPEED)
if (is_usb_speed_ss(dev->speed))
usb_hub_set_hub_depth(dev);
if (generic_hub_init(dev, desc.bNbrPorts, &usb_hub_ops) < 0)
return;