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46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
From 29f6589140a10ece8c1d73f58043ea5b3473ab3e Mon Sep 17 00:00:00 2001
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From: Wright Feng <wright.feng@cypress.com>
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Date: Wed, 21 Nov 2018 07:53:52 +0000
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Subject: [PATCH] brcmfmac: disable command decode in sdio_aos
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AOS is a part of the SDIOD core that becomes active when the rest of
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SDIOD is sleeping to keep SDIO bus alive responding to reduced set of
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commands.
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Transaction between AOS and SDIOD is not protected, and if cmd 52 is
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received in AOS and in the middle of response state changed from AOS to
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SDIOD, response is corrupted and it causes to SDIO Host controller to
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hang.
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Command decode for below chips are disabled in this commit:
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- 4339
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- 4345
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- 4354
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- 4373
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Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Wright Feng <wright.feng@cypress.com>
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Signed-off-by: Double Lo <double.lo@cypress.com>
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Signed-off-by: Madhan Mohan R <madhanmohan.r@cypress.com>
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Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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@@ -3369,7 +3369,11 @@ err:
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static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus)
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{
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- if (bus->ci->chip == CY_CC_43012_CHIP_ID)
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+ if (bus->ci->chip == CY_CC_43012_CHIP_ID ||
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+ bus->ci->chip == CY_CC_4373_CHIP_ID ||
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+ bus->ci->chip == BRCM_CC_4339_CHIP_ID ||
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+ bus->ci->chip == BRCM_CC_4345_CHIP_ID ||
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+ bus->ci->chip == BRCM_CC_4354_CHIP_ID)
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return true;
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else
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return false;
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