linux-kernel - Re: Re: [PATCH v2 1/2] bus: mhi: host: pci_generic: Update the file path for Foxconn SDX55/SDX72

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Message-ID: <20240726050051.GA2628@thinkpad>
Date: Fri, 26 Jul 2024 10:30:51 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Slark Xiao <slark_xiao@....com>
Cc: mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Re: [PATCH v2 1/2] bus: mhi: host: pci_generic: Update the file
 path for Foxconn SDX55/SDX72

On Thu, Jul 25, 2024 at 04:56:03PM +0800, Slark Xiao wrote:
> 
> At 2024-07-25 11:59:54, "Manivannan Sadhasivam" <manivannan.sadhasivam@...aro.org> wrote:
> >On Thu, Jul 25, 2024 at 10:29:40AM +0800, Slark Xiao wrote:
> >> To separate the images of Foxconn from other vendors, adding a
> >> new foxconn subfolder under qcom/<platform> for edl image path.
> >> And delete the fw patch since it's useless for Foxconn devices.
> >> 
> >> Fixes: bf30a75e6e00 ("bus: mhi: host: Add support for Foxconn SDX72 modems")
> >> Signed-off-by: Slark Xiao <slark_xiao@....com>
> >> ---
> >> v2: change the folder path architecture
> >> ---
> >>  drivers/bus/mhi/host/pci_generic.c | 13 +++++--------
> >>  1 file changed, 5 insertions(+), 8 deletions(-)
> >> 
> >> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> >> index 14a11880bcea..f159a9dd53e7 100644
> >> --- a/drivers/bus/mhi/host/pci_generic.c
> >> +++ b/drivers/bus/mhi/host/pci_generic.c
> >> @@ -433,8 +433,7 @@ 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 = "qcom/sdx55m/foxconn/prog_firehose_sdx55.mbn",
> >
> >I think you misunderstood what I suggested in earlier revision. You should add
> >the Foxconn specific fw only if it is different from the qcom one. Is it really
> >different for all these modems? Otherwise, what is the point of adding them?
> >
> >- Mani
> 
> >
> Hi Mani,
> Yes, all programer files are different with default. We add a sign step for each image
> file. That means other vendor's edl image(including Qualcomm) can't be applied for
> Foxconn devices. 
> 

Gotcha. Please include this info in the commit message as people may wonder what
the difference between yours and qcom.

Unrelated question to this patch: Once the EDL is programmed, what are the
images that the user has to flash using Firehose protocol? Is that the full SDK
or just SBL/APPS image?

If so, what is the size of the images?

- Mani

> >>  	.config = &modem_foxconn_sdx55_config,
> >>  	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >>  	.dma_data_width = 32,
> >> @@ -444,8 +443,7 @@ 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 = "qcom/sdx55m/foxconn/prog_firehose_sdx55.mbn",
> >>  	.config = &modem_foxconn_sdx55_config,
> >>  	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >>  	.dma_data_width = 32,
> >> @@ -455,8 +453,7 @@ 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 = "qcom/sdx55m/foxconn/prog_firehose_sdx55.mbn",
> >>  	.config = &modem_foxconn_sdx55_config,
> >>  	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >>  	.dma_data_width = 32,
> >> @@ -502,7 +499,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_dw5932e_info = {
> >>  
> >>  static const struct mhi_pci_dev_info mhi_foxconn_t99w515_info = {
> >>  	.name = "foxconn-t99w515",
> >> -	.edl = "fox/sdx72m/edl.mbn",
> >> +	.edl = "qcom/sdx72m/foxconn/edl.mbn",
> >>  	.edl_trigger = true,
> >>  	.config = &modem_foxconn_sdx72_config,
> >>  	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> @@ -513,7 +510,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_t99w515_info = {
> >>  
> >>  static const struct mhi_pci_dev_info mhi_foxconn_dw5934e_info = {
> >>  	.name = "foxconn-dw5934e",
> >> -	.edl = "fox/sdx72m/edl.mbn",
> >> +	.edl = "qcom/sdx72m/foxconn/edl.mbn",
> >>  	.edl_trigger = true,
> >>  	.config = &modem_foxconn_sdx72_config,
> >>  	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> >> -- 
> >> 2.25.1
> >> 
> >
> >-- 
> >மணிவண்ணன் சதாசிவம்

-- 
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