From 16713d7a23aa8cdf9ff432a881ba9066c9859992 Mon Sep 17 00:00:00 2001 From: Jim Lin Date: Mon, 8 Dec 2014 19:30:04 +0800 Subject: libpayload: EHCI: Fix transaction error for interrupt transfer Data toggle should be running like 0, 1, 0, 1, ... In the failed case (where a low-speed USB keyboard or km232 device is installed), data toggle will be running as 0, 1, 0, 1, ..., 1, 1. Therefore causing Halted or Transaction Error bit to be set in qTD Status field. BUG=None BRANCH=None TEST=Tested on nyan_kitty platform, firmware-kitty-5771.61.B branch. Attached USB keyboard or km232 device to root-hub port (same side as SD card slot). Made sure no transaction error after doing interrupt transfer. Change-Id: I576f3c583dae4c279a6e0e8ffdfce5abe463277d Signed-off-by: Patrick Georgi Original-Commit-Id: 64b0428aaab869e20f6720669e953acf82ecb846 Original-Change-Id: Ic2c0f95cff2ae6e314967b0b82231a962255f1a7 Original-Signed-off-by: Jim Lin Original-Reviewed-on: https://chromium-review.googlesource.com/233857 Original-Reviewed-by: Julius Werner Reviewed-on: http://review.coreboot.org/8747 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- payloads/libpayload/drivers/usb/ehci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'payloads/libpayload/drivers/usb') diff --git a/payloads/libpayload/drivers/usb/ehci.c b/payloads/libpayload/drivers/usb/ehci.c index 7002623e497b..6bb23f558694 100644 --- a/payloads/libpayload/drivers/usb/ehci.c +++ b/payloads/libpayload/drivers/usb/ehci.c @@ -674,7 +674,7 @@ static void *ehci_create_intr_queue( /* create spare qTD */ intrq->spare = (intr_qtd_t *)dma_memalign(64, sizeof(intr_qtd_t)); - fill_intr_queue_td(intrq, intrq->spare, data); + intrq->spare->data = data; /* initialize QH */ const int endp = ep->endpoint & 0xf; -- cgit v1.2.3