linux-kernel - Re: 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: <20240726115858.GG2628@thinkpad>
Date: Fri, 26 Jul 2024 17:28:58 +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: Re: [PATCH v2 1/2] bus: mhi: host: pci_generic: Update the
 file path for Foxconn SDX55/SDX72

On Fri, Jul 26, 2024 at 01:55:40PM +0800, Slark Xiao wrote:
> 
> At 2024-07-26 13:00:51, "Manivannan Sadhasivam" <manivannan.sadhasivam@...aro.org> wrote:
> >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.
> 
> >
> If possible, pelase help me add it into my commit message.
> 

Ok. I can add this while applying.

> 
> >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?
> 
> 
> This depends on a raw file, let's take SDX65 as an example. The file 
> rawprogram_nand_p4K_b256K.xml contains below items:
> .....
> <erase PAGES_PER_BLOCK="64" SECTOR_SIZE_IN_BYTES="4096" num_partition_sectors="640" start_sector="0"/>
> <program PAGES_PER_BLOCK="64" SECTOR_SIZE_IN_BYTES="4096" filename="xbl.elf.enc" label="sbl" last_sector="639" num_partition_sectors="640" physical_partition_number="0" start_sector="0"/>
> .....
> <erase PAGES_PER_BLOCK="64" SECTOR_SIZE_IN_BYTES="4096" num_partition_sectors="27456" start_sector="16512"/>
>   <program PAGES_PER_BLOCK="64" SECTOR_SIZE_IN_BYTES="4096" filename="NON-HLOS.ubi.enc" label="modem" last_sector="43967" num_partition_sectors="27456" physical_partition_number="0" start_sector="16512"/>
> ...
> 
> 
> This file contains 2 part, "erase" and "program".
> erase will tell the tool to erase the partition from sector x to y.
> And "program" will tell the tool to flash the file into that partion which start from sector m to n.
> 
> 
> So the logical is, full SDK or just one or some partitions are flashed depends on this raw file.
> Normally, full SDK is the main scenario. And the size is about 150MB to 200MB.
> Thanks. 
> 

Okay, thanks. I just wanted to understand what images are getting flashed.

- Mani

> >
> >- 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
> >
> >-- 
> >மணிவண்ணன் சதாசிவம்

-- 
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