[PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Aswath Govindraju]

UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].

Add support by removing the no-1-8-v tag and including the voltage
regulator device tree nodes for power cycling.

[1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---

test logs:
https://pastebin.ubuntu.com/p/vpYbY9QWh8/

 arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
 .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index cb340d1b401f..632f32fce4a1 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -301,7 +301,6 @@
 		ti,otap-del-sel = <0x2>;
 		ti,trm-icp = <0x8>;
 		dma-coherent;
-		no-1-8-v;
 	};
 
 	scm_conf: scm-conf@100000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 9e87fb313a54..6f7292b6fe0a 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -91,6 +91,38 @@
 		#clock-cells = <0>;
 		clock-frequency = <24000000>;
 	};
+
+	evm_12v0: fixedregulator-evm12v0 {
+		/* main supply */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_12v0";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vcc3v3_io: fixedregulator-vcc3v3io {
+		/* Output of TPS54334 */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_io";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+		vin-supply = <&evm_12v0>;
+	};
+
+	vdd_mmc1_sd: fixedregulator-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_mmc1_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		enable-active-high;
+		vin-supply = <&vcc3v3_io>;
+		gpio = <&pca9554 4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &wkup_pmx0 {
@@ -350,6 +382,7 @@
  * disable sdhci1
  */
 &sdhci1 {
+	vmmc-supply = <&vdd_mmc1_sd>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	ti,driver-strength-ohm = <50>;
-- 
2.17.1

[PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Aswath Govindraju]

UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].

Add support by removing the no-1-8-v tag and including the voltage
regulator device tree nodes for power cycling.

[1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---

test logs:
https://pastebin.ubuntu.com/p/vpYbY9QWh8/

 arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
 .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index cb340d1b401f..632f32fce4a1 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -301,7 +301,6 @@
 		ti,otap-del-sel = <0x2>;
 		ti,trm-icp = <0x8>;
 		dma-coherent;
-		no-1-8-v;
 	};
 
 	scm_conf: scm-conf@100000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 9e87fb313a54..6f7292b6fe0a 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -91,6 +91,38 @@
 		#clock-cells = <0>;
 		clock-frequency = <24000000>;
 	};
+
+	evm_12v0: fixedregulator-evm12v0 {
+		/* main supply */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_12v0";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vcc3v3_io: fixedregulator-vcc3v3io {
+		/* Output of TPS54334 */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_io";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+		vin-supply = <&evm_12v0>;
+	};
+
+	vdd_mmc1_sd: fixedregulator-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_mmc1_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		enable-active-high;
+		vin-supply = <&vcc3v3_io>;
+		gpio = <&pca9554 4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &wkup_pmx0 {
@@ -350,6 +382,7 @@
  * disable sdhci1
  */
 &sdhci1 {
+	vmmc-supply = <&vdd_mmc1_sd>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	ti,driver-strength-ohm = <50>;
-- 
2.17.1


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Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Nishanth Menon]

On 16:13-20210407, Aswath Govindraju wrote:
> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
> 
> Add support by removing the no-1-8-v tag and including the voltage
> regulator device tree nodes for power cycling.
> 
> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

> ---
> 
> test logs:
> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
> 
Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
out). but it does trigger an interesting discussion..

>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
>  2 files changed, 33 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index cb340d1b401f..632f32fce4a1 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -301,7 +301,6 @@
>  		ti,otap-del-sel = <0x2>;
>  		ti,trm-icp = <0x8>;
>  		dma-coherent;
> -		no-1-8-v;
>  	};
>  

Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
2.0, 2.1 coming along, the plan for TI was to support older revs via
overlays hoping that older boards will eventually get replaced or die
out of lack of use.. but you do have production on 1.0 -> so would you
rather handle this in overlay OR IOT boards dts introduce no-1-8-v
property?


-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Nishanth Menon]

On 16:13-20210407, Aswath Govindraju wrote:
> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
> 
> Add support by removing the no-1-8-v tag and including the voltage
> regulator device tree nodes for power cycling.
> 
> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

> ---
> 
> test logs:
> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
> 
Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
out). but it does trigger an interesting discussion..

>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
>  2 files changed, 33 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index cb340d1b401f..632f32fce4a1 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -301,7 +301,6 @@
>  		ti,otap-del-sel = <0x2>;
>  		ti,trm-icp = <0x8>;
>  		dma-coherent;
> -		no-1-8-v;
>  	};
>  

Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
2.0, 2.1 coming along, the plan for TI was to support older revs via
overlays hoping that older boards will eventually get replaced or die
out of lack of use.. but you do have production on 1.0 -> so would you
rather handle this in overlay OR IOT boards dts introduce no-1-8-v
property?


-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

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Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Jan Kiszka]

On 07.04.21 16:59, Nishanth Menon wrote:
> On 16:13-20210407, Aswath Govindraju wrote:
>> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
>>
>> Add support by removing the no-1-8-v tag and including the voltage
>> regulator device tree nodes for power cycling.
>>
>> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
>>
>> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> 
>> ---
>>
>> test logs:
>> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
>>
> Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
> out). but it does trigger an interesting discussion..
> 
>>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
>>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
>>  2 files changed, 33 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index cb340d1b401f..632f32fce4a1 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -301,7 +301,6 @@
>>  		ti,otap-del-sel = <0x2>;
>>  		ti,trm-icp = <0x8>;
>>  		dma-coherent;
>> -		no-1-8-v;
>>  	};
>>  
> 
> Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
> 2.0, 2.1 coming along, the plan for TI was to support older revs via
> overlays hoping that older boards will eventually get replaced or die
> out of lack of use.. but you do have production on 1.0 -> so would you
> rather handle this in overlay OR IOT boards dts introduce no-1-8-v
> property?

I'm fine with pulling anything needed into our board-specific DTs. Those
pending are for SR1.0 boards only. SR2 will come later and have their
own DTs.

Didn't follow the thread: Where is this patch located wrt my IOT2050
series? Does it come first first, and we would have to rebase? Or would
this change rather have to move the flag to k3-am65-iot2050-common.dtsi?

Thanks a lot for having an eye on these subtle dependencies!

Jan

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux

Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Jan Kiszka]

On 07.04.21 16:59, Nishanth Menon wrote:
> On 16:13-20210407, Aswath Govindraju wrote:
>> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
>>
>> Add support by removing the no-1-8-v tag and including the voltage
>> regulator device tree nodes for power cycling.
>>
>> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
>>
>> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> 
>> ---
>>
>> test logs:
>> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
>>
> Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
> out). but it does trigger an interesting discussion..
> 
>>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
>>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
>>  2 files changed, 33 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index cb340d1b401f..632f32fce4a1 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -301,7 +301,6 @@
>>  		ti,otap-del-sel = <0x2>;
>>  		ti,trm-icp = <0x8>;
>>  		dma-coherent;
>> -		no-1-8-v;
>>  	};
>>  
> 
> Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
> 2.0, 2.1 coming along, the plan for TI was to support older revs via
> overlays hoping that older boards will eventually get replaced or die
> out of lack of use.. but you do have production on 1.0 -> so would you
> rather handle this in overlay OR IOT boards dts introduce no-1-8-v
> property?

I'm fine with pulling anything needed into our board-specific DTs. Those
pending are for SR1.0 boards only. SR2 will come later and have their
own DTs.

Didn't follow the thread: Where is this patch located wrt my IOT2050
series? Does it come first first, and we would have to rebase? Or would
this change rather have to move the flag to k3-am65-iot2050-common.dtsi?

Thanks a lot for having an eye on these subtle dependencies!

Jan

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux

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linux-arm-kernel mailing list
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Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Nishanth Menon]

On 17:13-20210407, Jan Kiszka wrote:
> On 07.04.21 16:59, Nishanth Menon wrote:
> > On 16:13-20210407, Aswath Govindraju wrote:
> >> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
> >>
> >> Add support by removing the no-1-8-v tag and including the voltage
> >> regulator device tree nodes for power cycling.
> >>
> >> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
> >>
> >> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> > 
> >> ---
> >>
> >> test logs:
> >> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
> >>
> > Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
> > out). but it does trigger an interesting discussion..
> > 
> >>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
> >>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
> >>  2 files changed, 33 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> index cb340d1b401f..632f32fce4a1 100644
> >> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> @@ -301,7 +301,6 @@
> >>  		ti,otap-del-sel = <0x2>;
> >>  		ti,trm-icp = <0x8>;
> >>  		dma-coherent;
> >> -		no-1-8-v;
> >>  	};
> >>  
> > 
> > Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
> > 2.0, 2.1 coming along, the plan for TI was to support older revs via
> > overlays hoping that older boards will eventually get replaced or die
> > out of lack of use.. but you do have production on 1.0 -> so would you
> > rather handle this in overlay OR IOT boards dts introduce no-1-8-v
> > property?
> 
> I'm fine with pulling anything needed into our board-specific DTs. Those
> pending are for SR1.0 boards only. SR2 will come later and have their
> own DTs.

OK - I think the safe option will be for Ashwath to add no-1-8-v into
IOT board.dts as part of this patch to maintain bisectability.

> Didn't follow the thread: Where is this patch located wrt my IOT2050
> series? Does it come first first, and we would have to rebase? Or would
> this change rather have to move the flag to k3-am65-iot2050-common.dtsi?

5.13 PR is sent https://lore.kernel.org/linux-arm-kernel/20210405155336.smohb7uzkperqwuz@reflex/
IoT is part of that.. I am guessing Arnd / Olof will pick it up later this week
or weekend once it goes through their checklist.

we are starting to see 5.14 material now, so nothing you need to do from
rebase perspective - testing will be appreciated to make sure that the
new patches have'nt broken your board.

> Thanks a lot for having an eye on these subtle dependencies!

Sure..
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D)/Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

Re: [PATCH] arm64: dts: ti: k3-am65: Add support for UHS-I modes in MMCSD1 subsystem

[Nishanth Menon]

On 17:13-20210407, Jan Kiszka wrote:
> On 07.04.21 16:59, Nishanth Menon wrote:
> > On 16:13-20210407, Aswath Govindraju wrote:
> >> UHS-I speed modes are supported in AM65 S.R. 2.0 SoC[1].
> >>
> >> Add support by removing the no-1-8-v tag and including the voltage
> >> regulator device tree nodes for power cycling.
> >>
> >> [1] - https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf, section 12.3.6.1.1
> >>
> >> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> > 
> >> ---
> >>
> >> test logs:
> >> https://pastebin.ubuntu.com/p/vpYbY9QWh8/
> >>
> > Thanks, but I dont plan on queuing this for 5.13-rc1 (my PR is already
> > out). but it does trigger an interesting discussion..
> > 
> >>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |  1 -
> >>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 33 +++++++++++++++++++
> >>  2 files changed, 33 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> index cb340d1b401f..632f32fce4a1 100644
> >> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> >> @@ -301,7 +301,6 @@
> >>  		ti,otap-del-sel = <0x2>;
> >>  		ti,trm-icp = <0x8>;
> >>  		dma-coherent;
> >> -		no-1-8-v;
> >>  	};
> >>  
> > 
> > Jan - this will break your IOT SR1.0 boards, no? with all the SR1.0,
> > 2.0, 2.1 coming along, the plan for TI was to support older revs via
> > overlays hoping that older boards will eventually get replaced or die
> > out of lack of use.. but you do have production on 1.0 -> so would you
> > rather handle this in overlay OR IOT boards dts introduce no-1-8-v
> > property?
> 
> I'm fine with pulling anything needed into our board-specific DTs. Those
> pending are for SR1.0 boards only. SR2 will come later and have their
> own DTs.

OK - I think the safe option will be for Ashwath to add no-1-8-v into
IOT board.dts as part of this patch to maintain bisectability.

> Didn't follow the thread: Where is this patch located wrt my IOT2050
> series? Does it come first first, and we would have to rebase? Or would
> this change rather have to move the flag to k3-am65-iot2050-common.dtsi?

5.13 PR is sent https://lore.kernel.org/linux-arm-kernel/20210405155336.smohb7uzkperqwuz@reflex/
IoT is part of that.. I am guessing Arnd / Olof will pick it up later this week
or weekend once it goes through their checklist.

we are starting to see 5.14 material now, so nothing you need to do from
rebase perspective - testing will be appreciated to make sure that the
new patches have'nt broken your board.

> Thanks a lot for having an eye on these subtle dependencies!

Sure..
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D)/Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

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