openwrt/package/kernel/mac80211/patches/brcm/329-v5.0-0008-brcmfmac-disable-command-decode-in-sdio_aos.patch
Hauke Mehrtens ac7ccf739a mac80211: Update to version 4.19.57
This updates to backports-4.19.57-1 which contains the wireless
subsystem and driver from kernel 4.19.57.
The removed patches are applied upstream.

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-08-17 13:36:06 +02:00

46 lines
1.6 KiB
Diff

From 29f6589140a10ece8c1d73f58043ea5b3473ab3e Mon Sep 17 00:00:00 2001
From: Wright Feng <wright.feng@cypress.com>
Date: Wed, 21 Nov 2018 07:53:52 +0000
Subject: [PATCH] brcmfmac: disable command decode in sdio_aos
AOS is a part of the SDIOD core that becomes active when the rest of
SDIOD is sleeping to keep SDIO bus alive responding to reduced set of
commands.
Transaction between AOS and SDIOD is not protected, and if cmd 52 is
received in AOS and in the middle of response state changed from AOS to
SDIOD, response is corrupted and it causes to SDIO Host controller to
hang.
Command decode for below chips are disabled in this commit:
- 4339
- 4345
- 4354
- 4373
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Double Lo <double.lo@cypress.com>
Signed-off-by: Madhan Mohan R <madhanmohan.r@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -3365,7 +3365,11 @@ err:
static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus)
{
- if (bus->ci->chip == CY_CC_43012_CHIP_ID)
+ if (bus->ci->chip == CY_CC_43012_CHIP_ID ||
+ bus->ci->chip == CY_CC_4373_CHIP_ID ||
+ bus->ci->chip == BRCM_CC_4339_CHIP_ID ||
+ bus->ci->chip == BRCM_CC_4345_CHIP_ID ||
+ bus->ci->chip == BRCM_CC_4354_CHIP_ID)
return true;
else
return false;