linux-kernel - Re: [PATCH V3 0/4] Changes for SDCC5 version

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Date:   Tue, 09 Oct 2018 07:15:40 +0100
From:   Craig <ctatlor97@...il.com>
To:     Veerabhadrarao Badiganti <vbadigan@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     Vijay Viswanath <vviswana@...eaurora.org>, adrian.hunter@...el.com,
        ulf.hansson@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        shawn.lin@...k-chips.com, linux-arm-msm@...r.kernel.org,
        georgi.djakov@...aro.org, devicetree@...r.kernel.org,
        asutoshd@...eaurora.org, stummala@...eaurora.org,
        venkatg@...eaurora.org, jeremymc@...hat.com,
        riteshh@...eaurora.org, dianders@...gle.com, sayalil@...eaurora.org
Subject: Re: [PATCH V3 0/4] Changes for SDCC5 version



On 9 October 2018 07:01:57 BST, Veerabhadrarao Badiganti <vbadigan@...eaurora.org> wrote:
>Hi
>
>
>On 10/8/2018 12:26 PM, Bjorn Andersson wrote:
>> On Sun 07 Oct 01:07 PDT 2018, Craig wrote:
>>
>>> Any updates on this?
>>>
>> FWIW I used qcom,sdhci-msm-v5 on QCS404 successfully.
>>
>> Regards,
>> Bjorn
>
>The base address and interrupt numbers needs to be updated in your dt.
>you can refer the below link to update interrupt number and base
>address
>https://android.googlesource.com/kernel/msm/+/android-msm-wahoo-4.4-oreo-m2/arch/arm/boot/dts/qcom/sdm660.dtsi
They look correct, driver only uses pwr irq and the actual reg field is fine, just node name wrong, which wouldn't cause issues.
>>> On 25 September 2018 16:39:33 BST, Craig <ctatlor97@...il.com>
>wrote:
>>>>
>>>> On 25 September 2018 12:17:26 BST, Veerabhadrarao Badiganti
>>>> <vbadigan@...eaurora.org> wrote:
>>>>> On 9/25/2018 1:18 AM, Craig Tatlor wrote:
>>>>>> What socs have you tested this on?
>>>>>> On sdm660 it seems to crash device
>>>>>> when writing pwr ctl.
>>>>> Hi
>>>>> We have tested this on SDM845.
>>>>> SDM660 also has SDCC5 controller, so you would need to define
>>>>> "qcom,sdhci-msm-v5" in your platform dt.
>>>>> Can you confirm if you have defined this?
>>>>>
>>>> Hi,
>>>> Yes my DT entry is as follows
>>>>
>>>> sdhc_1: sdhci@...24900 {
>Update this address. This could be the reason for the crash that you
>are 
>observing.
>
>>>>      
>>>>               
>>>> compatible = "qcom,sdhci-msm-v5";
>>>>           
>>>> reg = <0xc0c4000 0x1000>, <0xc0c5000 0x1000>;
>>>>           
>>>> interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
>>>>           
>
>Please update this interrupt map aswell.
>
>>>> interrupt-names = "pwr_irq";
>>>>           
>>>>                                                                    
>   
>>>> bus-width = <8>;
>>>>           
>>>> non-removable;
>>>>           
>>>>                                                                    
>   
>>>> vmmc-supply = <&pm660l_l4>;
>>>>           
>>>> vqmmc-supply = <&pm660_l8>;
>>>>           
>>>>                                                                    
>   
>>>> pinctrl-names = "default";
>>>>           
>>>> pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data &sdc1_rclk>;
>>>>           
>>>>                                                                    
>   
>>>> clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>;
>>>>           
>>>> clock-names = "core", "iface";
>>>>           
>>>>         };
>>>>
>>>>> BTW, can you please share few details of the platform that you are
>>>>> checking?
>>>>> We are not aware of any dev platform based on SDM660. This is just
>for
>>>>> my info
>>>> I'm checking on the sony xperia xa2 (pioneer) smartphone.
>>>>>> On Tue, Jun 19, 2018 at 11:09:17AM +0530, Vijay Viswanath wrote:
>>>>>>> With SDCC5, the MCI register space got removed and the
>offset/order
>>>>> of
>>>>>>> several registers have changed. Based on SDCC version used and
>the
>>>>> register,
>>>>>>> we need to pick the base address and offset.
>>>>>>>
>>>>>>> Depends on patch series: "[PATCH V5 0/2] mmc: sdhci-msm:
>>>> Configuring
>>>>> IO_PAD support for sdhci-msm"
>>>>>>> Changes since RFC:
>>>>>>> 	Dropped voltage regulator changes in sdhci-msm
>>>>>>> 	Split the "Register changes for sdcc V5" patch
>>>>>>> 	Instead of checking mci removal for deciding which base addr to
>>>>> use,
>>>>>>> 	new function pointers are defined for the 2 variants of sdcc:
>>>>>>> 		1) MCI present
>>>>>>> 		2) V5 (mci removed)
>>>>>>> 	Instead of string comparing with the compatible string from DT
>>>>> file,
>>>>>>> 	the sdhci_msm_probe will now pick the data associated with the
>>>>>>> 	compatible entry and use it to load variant specific address
>>>>> offsets
>>>>>>> 	and msm variant specific read/write ops.
>>>>>>>
>>>>>>> Changes since V1:
>>>>>>> 	Removed unused msm_reab & msm_writeb APIs
>>>>>>> 	Changed certain register addresses from uppercase to lowercase
>hex
>>>>>>> 	letters
>>>>>>> 	Removed extra lines and spaces
>>>>>>> 	Split "[PATCH V1 0/3] Changes for SDCC5 version" patch into
>two,
>>>>>>> 	one for Documentation and other for the driver changes.
>>>>>>>
>>>>>>> Changes since V2:
>>>>>>> 	Used lower case for macro function defenitions
>>>>>>> 	Removed unused function pointers for msm_readb & msm_writeb
>>>>>>>
>>>>>>>
>>>>>>> Sayali Lokhande (3):
>>>>>>>     mmc: sdhci-msm: Define new Register address map
>>>>>>>     Documentation: sdhci-msm: Add new compatible string for SDCC
>v5
>>>>>>>     mmc: host: Register changes for sdcc V5
>>>>>>>
>>>>>>> Vijay Viswanath (1):
>>>>>>>     mmc: sdhci-msm: Add msm version specific ops and data
>structures
>>>>>>>
>>>>>>>    .../devicetree/bindings/mmc/sdhci-msm.txt          |   7 +-
>>>>>>>    drivers/mmc/host/sdhci-msm.c                       | 511
>>>>> ++++++++++++++++-----
>>>>>>>    2 files changed, 391 insertions(+), 127 deletions(-)
>>>>>>>
>>>>>>> -- 
>>>>>>>    Qualcomm India Private Limited, on behalf of Qualcomm
>Innovation
>>>>> Center, Inc.
>>>>>>> Qualcomm Innovation Center, Inc. is a member of Code Aurora
>Forum,
>>>> a
>>>>> Linux Foundation Collaborative Project.
>>>>>>> --
>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>> linux-arm-msm" in
>>>>>>> the body of a message to majordomo@...r.kernel.org
>>>>>>> More majordomo info at 
>http://vger.kernel.org/majordomo-info.html
>>>>> Thanks,
>>>>> Veera
>>> -- 
>>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
>Thanks,
>Veera

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.