openwrt/target/linux/layerscape/patches-5.4/820-usb-0016-MLK-16735-usb-host-add-XHCI_CDNS_HOST-flag.patch
John Audia e95b1b23f1 kernel: bump 5.4 to 5.4.97
Ran update_kernel.sh in a fresh clone without any existing toolchains.

Manually rebased:
 bcm27xx
  950-0267-xhci-add-quirk-for-host-controllers-that-don-t-updat.patch
 bcm53xx
  180-usb-xhci-add-support-for-performing-fake-doorbell.patch
 layerscape
  302-dts-0008-arm64-dts-ls1046a-accumulated-change-to-ls1046a-boar.patch
  820-usb-0016-MLK-16735-usb-host-add-XHCI_CDNS_HOST-flag.patch
  820-usb-0018-MLK-18794-1-usb-host-xhci-add-.bus_suspend-override.patch

Build system: x86_64
Build-tested: bcm27xx/bcm2711, ipq806x/R7800
Run-tested: ipq806x/R7800

No dmesg regressions/everything functional.

Signed-off-by: John Audia <graysky@archlinux.us>
[remove quilt comment, fix/adjust 820-usb-* layerscape patches]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-02-11 16:08:28 +01:00

43 lines
1.5 KiB
Diff

From a9f1d7994a9f8a38fdace19454ef031244e24e5e Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@nxp.com>
Date: Thu, 9 Nov 2017 16:58:40 +0800
Subject: [PATCH] MLK-16735 usb: host: add XHCI_CDNS_HOST flag
The NXP Cadence XHCI host has the same issue with Intel's,
it is triggered by reboot test, the test case is described
at this jira ticket.
BuildInfo:
- SCFW 8dcff26, IMX-MKIMAGE ea027c4b, ATF
- U-Boot 2017.03-imx_v2017.03_4.9.51_imx8_beta1+g6dc7b0f
Acked-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
(cherry picked from commit 5e353132931b9dc6e05f6bea1281ae35dd6a59d8)
---
drivers/usb/host/xhci.c | 2 +-
drivers/usb/host/xhci.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -193,7 +193,7 @@ int xhci_reset(struct xhci_hcd *xhci)
* Without this delay, the subsequent HC register access,
* may result in a system hang very rarely.
*/
- if (xhci->quirks & XHCI_INTEL_HOST)
+ if (xhci->quirks & (XHCI_INTEL_HOST | XHCI_CDNS_HOST))
udelay(1000);
ret = xhci_handshake(&xhci->op_regs->command,
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1873,6 +1873,7 @@ struct xhci_hcd {
#define XHCI_DEFAULT_PM_RUNTIME_ALLOW BIT_ULL(33)
#define XHCI_RESET_PLL_ON_DISCONNECT BIT_ULL(34)
#define XHCI_SNPS_BROKEN_SUSPEND BIT_ULL(35)
+#define XHCI_CDNS_HOST BIT_ULL(36)
#define XHCI_SKIP_PHY_INIT BIT_ULL(37)
#define XHCI_DISABLE_SPARSE BIT_ULL(38)