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Subject: Re: [PATCH V2 8/8] brcmfmac: disable command decode in sdio_aos
To:     Chi-Hsien Lin <Chi-Hsien.Lin@cypress.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
References: <1542007730-47284-1-git-send-email-chi-hsien.lin@cypress.com>
 <1542007730-47284-9-git-send-email-chi-hsien.lin@cypress.com>
Cc:     "brcm80211-dev-list@broadcom.com" <brcm80211-dev-list@broadcom.com>,
        brcm80211-dev-list <brcm80211-dev-list@cypress.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Wright Feng <Wright.Feng@cypress.com>,
        Kalle Valo <kvalo@codeaurora.org>,
        Double Lo <Double.Lo@cypress.com>,
        Madhan Mohan R <MadhanMohan.R@cypress.com>
From:   Arend van Spriel <arend.vanspriel@broadcom.com>
Message-ID: <45d702d0-9761-add6-5ae1-97c1ebdef331@broadcom.com>
Date:   Mon, 12 Nov 2018 11:33:55 +0100
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On 11/12/2018 8:30 AM, Chi-Hsien Lin wrote:
> From: Wright Feng <wright.feng@cypress.com>
>
> 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.

Just one question. The above sound pretty generic so does it apply to 
any SDIO chip with AOS logic?

Regards,
Arend