linux-kernel - Re: Re: Re: [PATCH] bus: mhi: host: Add firehose support for Foxconn SDX24/SDX55/SDX65

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Message-ID: <CAA8EJprd8pqnw_jVd2u_Sdf1L=SPY3tYojHtN_de672F0vN7UQ@mail.gmail.com>
Date: Mon, 15 Jul 2024 13:43:07 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Slark Xiao <slark_xiao@....com>
Cc: manivannan.sadhasivam@...aro.org, mhi@...ts.linux.dev, 
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Re: Re: [PATCH] bus: mhi: host: Add firehose support for Foxconn SDX24/SDX55/SDX65

On Mon, 15 Jul 2024 at 09:27, Slark Xiao <slark_xiao@....com> wrote:
>
>
> At 2024-07-15 14:16:57, "Dmitry Baryshkov" <dmitry.baryshkov@...aro.org> wrote:
> >On Mon, 15 Jul 2024 at 08:46, Slark Xiao <slark_xiao@....com> wrote:
> >>
> >>
> >> At 2024-07-13 23:09:47, "Dmitry Baryshkov" <dmitry.baryshkov@...aro.org> wrote:
> >> >On Tue, Jul 09, 2024 at 09:58:18AM GMT, Slark Xiao wrote:
> >> >> Since we implement the FIREHOSE channel support in foxconn mhi
> >> >> channels, that means each product which use this channel config
> >> >> would support FIREHOSE. But according to the trigger_edl feature,
> >> >> we need to enable it by adding '.edl_trigger = true' in device
> >> >> info struct.
> >> >> Also, we update all edl image path from 'qcom' to 'fox' in case of
> >> >> conflicting with other vendors.
> >> >
> >> >Separate patches please. Also don't use "we", just an imerative style:
> >> >do this and that.
> >> >
> >>
> >> Do you mean use 2 patches (1 for enabling trigger edl and 1 for
> >> modifying path)? Though these changes are aimed to make
> >> firehose download successfully.
> >
> >Yes. "Do this. Also do that" is usually a sign that the patch should be split.
>
> Will do a update in next version.
>
> >
> >>
> >> >>
> >> >> Signed-off-by: Slark Xiao <slark_xiao@....com>
> >> >> ---
> >> >>  drivers/bus/mhi/host/pci_generic.c | 20 ++++++++++++++------
> >> >>  1 file changed, 14 insertions(+), 6 deletions(-)
> >> >>
> >> >> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> >> >> index 14a11880bcea..440609b81e57 100644
> >> >> --- a/drivers/bus/mhi/host/pci_generic.c
> >> >> +++ b/drivers/bus/mhi/host/pci_generic.c
> >> >> @@ -433,8 +433,8 @@ static const struct mhi_controller_config modem_foxconn_sdx72_config = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = {
> >> >>      .name = "foxconn-sdx55",
> >> >> -    .fw = "qcom/sdx55m/sbl1.mbn",
> >> >> -    .edl = "qcom/sdx55m/edl.mbn",
> >> >> +    .edl = "fox/sdx55m/prog_firehose_sdx55.mbn",
> >> >
> >> >qcom/sdx55m/foxconn/prog_firehose_sdx55.mbn
> >>
> >> what's your opinion?Mani
> >>
> >> >
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -444,8 +444,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_t99w175_info = {
> >> >>      .name = "foxconn-t99w175",
> >> >> -    .fw = "qcom/sdx55m/sbl1.mbn",
> >> >> -    .edl = "qcom/sdx55m/edl.mbn",
> >> >> +    .edl = "fox/sdx55m/prog_firehose_sdx55.mbn",
> >> >
> >> >Is it the same file as the one mentioned in the previous chunk or is it
> >> >different?
> >> >
> >>
> >> They are same for same chip, though we have some variants.
> >
> >Please excuse me, I can't fully understand. So are the files the same or not?
> >
> >There is a simple mental experiment regarding the file names: you
> >should be able to have a single host rootfs, which supports working
> >with all of your modems at the same time, without modifications.
> >So if modem A and modem B might use file foo.bar and the file is the
> >same for all SDX55 modems, it's fine to have it in qcom/sdx55m/ or in
> >qcom/sdx55m/foxconn. If it is different depending on the end-device,
> >it should go to the qcom/sdx55m/foxconn/devname/ .
> >
> For all Foxconn devices designed based on same chip, they can use same
> edl file. This EDL file is a common image of whole FIREHOSE image package
> of difference variants. The difference of Foxconn SDX55 modem A and
> Foxconn SDX55 modem B is APPS image and Modem image. The EDL
> image is a file for putting device into EDL mode.
> So I prefer to use "qcom/sdx55m/foxconn" since Foxconn's device are
> different with other vendors which provide sdx55 devices as well.

If it's common, sounds good to me.

>
> >>
> >> >If they are different, then, please,
> >> >
> >> >qcom/sdx55m/foxconn/t99w175/prog_firehose_sdx55.mbn
> >> >
> >> >
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -455,8 +455,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_t99w175_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_dw5930e_info = {
> >> >>      .name = "foxconn-dw5930e",
> >> >> -    .fw = "qcom/sdx55m/sbl1.mbn",
> >> >> -    .edl = "qcom/sdx55m/edl.mbn",
> >> >> +    .edl = "fox/sdx55m/prog_firehose_sdx55.mbn",
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -466,6 +466,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_dw5930e_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_t99w368_info = {
> >> >>      .name = "foxconn-t99w368",
> >> >> +    .edl = "fox/sdx65m/prog_firehose_lite.elf",
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -475,6 +477,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_t99w368_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_t99w373_info = {
> >> >>      .name = "foxconn-t99w373",
> >> >> +    .edl = "fox/sdx65m/prog_firehose_lite.elf",
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -484,6 +488,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_t99w373_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_t99w510_info = {
> >> >>      .name = "foxconn-t99w510",
> >> >> +    .edl = "fox/sdx24m/prog_firehose_sdx24.mbn",
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> @@ -493,6 +499,8 @@ static const struct mhi_pci_dev_info mhi_foxconn_t99w510_info = {
> >> >>
> >> >>  static const struct mhi_pci_dev_info mhi_foxconn_dw5932e_info = {
> >> >>      .name = "foxconn-dw5932e",
> >> >> +    .edl = "fox/sdx65m/prog_firehose_lite.elf",
> >> >> +    .edl_trigger = true,
> >> >>      .config = &modem_foxconn_sdx55_config,
> >> >>      .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> >>      .dma_data_width = 32,
> >> >> --
> >> >> 2.25.1
> >> >>
> >> >
> >> >--
> >> >With best wishes
> >> >Dmitry
> >
> >
> >
> >--
> >With best wishes
> >Dmitry



-- 
With best wishes
Dmitry