From: Loic Poulain <loic.poulain@linaro.org>
To: Bhaumik Bhatt <bbhatt@codeaurora.org>
Cc: "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
"Hemant Kumar" <hemantk@codeaurora.org>,
"Jeffrey Hugo" <jhugo@codeaurora.org>,
"open list" <linux-kernel@vger.kernel.org>,
"Carl Yin(殷张成)" <carl.yin@quectel.com>,
"Naveen Kumar" <naveen.kumar@quectel.com>,
abickett@codeaurora.org
Subject: Re: [PATCH v1 4/7] bus: mhi: core: Add support for Flash Programmer execution environment
Date: Tue, 30 Mar 2021 10:02:33 +0200 [thread overview]
Message-ID: <CAMZdPi-biACwrE=jeFXqgkCAZ3YpX8+vzqEaB9CuyepbhiKb7A@mail.gmail.com> (raw)
In-Reply-To: <1617067704-28850-5-git-send-email-bbhatt@codeaurora.org>
On Tue, 30 Mar 2021 at 03:28, Bhaumik Bhatt <bbhatt@codeaurora.org> wrote:
>
> From: Carl Yin <carl.yin@quectel.com>
>
> MHI WWAN modems support downloading firmware to NAND or eMMC
> using Firehose protocol with process as follows:
> 1. Modem boots up, enters AMSS execution environment and the
> device later enters EDL (Emergency Download) mode through any
> mechanism host can use such as a diag command.
> 2. Modem enters SYS_ERROR, MHI host handles SYS_ERROR transition.
> 3. EDL image for device to enter 'Flash Programmer' execution
> environment is then flashed via BHI interface from host.
> 4. Modem enters MHI READY -> M0 and sends the Flash Programmer
> execution environment change to host.
> 5. Following that, EDL/FIREHOSE channels (34, 35) are made
> available from the host.
> 6. User space tool for downloading firmware image to modem over
> the EDL channels using Firehose protocol. Link to USB flashing
> tool: https://git.linaro.org/landing-teams/working/qualcomm/qdl.git/
>
> Make the necessary changes to allow for this sequence to occur and
> allow using the Flash Programmer execution environment.
>
> Signed-off-by: Carl Yin <carl.yin@quectel.com>
> Co-developed-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
> Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
next prev parent reply other threads:[~2021-03-30 7:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-30 1:28 [PATCH v1 0/7] MHI Emergency download and flash programmer support Bhaumik Bhatt
2021-03-30 1:28 ` [PATCH v1 1/7] bus: mhi: core: Rely on accurate method to determine EDL mode Bhaumik Bhatt
2021-03-30 8:00 ` Loic Poulain
2021-03-30 1:28 ` [PATCH v1 2/7] bus: mhi: core: Wait for ready after an EDL firmware download Bhaumik Bhatt
2021-03-30 8:01 ` Loic Poulain
2021-03-30 1:28 ` [PATCH v1 3/7] bus: mhi: core: Handle EDL mode entry appropriately Bhaumik Bhatt
2021-03-30 8:01 ` Loic Poulain
2021-03-31 10:59 ` Manivannan Sadhasivam
2021-03-30 1:28 ` [PATCH v1 4/7] bus: mhi: core: Add support for Flash Programmer execution environment Bhaumik Bhatt
2021-03-30 8:02 ` Loic Poulain [this message]
2021-03-31 11:11 ` Manivannan Sadhasivam
2021-03-30 1:28 ` [PATCH v1 5/7] bus: mhi: core: Identify Flash Programmer as a mission mode use case Bhaumik Bhatt
2021-03-30 8:02 ` Loic Poulain
2021-03-30 1:28 ` [PATCH v1 6/7] bus: mhi: core: Wait for MHI READY state in most scenarios Bhaumik Bhatt
2021-03-30 8:03 ` Loic Poulain
2021-03-31 11:13 ` Manivannan Sadhasivam
2021-03-30 1:28 ` [PATCH v1 7/7] bus: mhi: core: Improve state strings for debug messages Bhaumik Bhatt
2021-03-30 8:03 ` Loic Poulain
2021-03-31 11:16 ` [PATCH v1 0/7] MHI Emergency download and flash programmer support Manivannan Sadhasivam
2021-03-31 17:01 ` Bhaumik Bhatt
2021-03-31 11:24 ` Manivannan Sadhasivam
2021-05-26 19:03 ` patchwork-bot+linux-arm-msm
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