[PATCH v2 00/13] sunxi: A100/A133 second stage support

[PATCH v2 00/13] sunxi: A100/A133 second stage support

[Cody Eksal]

Hello again!

This is V2 of this series [5], with some changes that were requested and
others that were made after testing on more devices. Thank you for all of
your feedback! A changelog is available below.

==================
Back in 2020, two Allwinner employees, Yangtao Li and Shuosheng Huang, each
submitted a patch series for the A100 series of SoCs; [1] intended to add
support for the watchdog, ARM PMU, DMA, USB, and (e)MMC controller, and [2]
implemented DVFS support. Some patches from the first series landed, but
the rest were seemingly abandoned.

Although references to the A100 have been removed by Allwinner, it is
believed that the A133 and A133 Plus, which are still available, are simply
better binned variants of the A100; no other differences have been noted
thus far, and the drivers for the A100 work on the A133 without any
additional modifications. There has been a resurgence of interest in the
A133; patches to allow mainline U-Boot to run on these devices are
currently in progress.

I have rebased the patches that failed to land, applying the feedback
provided by maintainers at the time. Some DT binding patches were added, as
there were a few cases where compatibles were used without being
documented. Minor reworks were necessary to apply certain patches, as the
drivers they modified have matured over time.

Patches 1 and 2 add PMU and watchdog nodes to the device tree. This is
followed by patches 3-7, which implement support for the USB host and OTG
peripherals. Patches 8-10 add MMC nodes, rounding out what originally
made up the first patch series; support for these already exists from
earlier patches, though patch 7 fixes an issue with the clock definitions
preventing the MMC controller from initializing. Patches 11-13 finish the
job of the second original series and this series, implementing OPP and
enabling DVFS on these SoCs.

This series is also available on GitHub [3].

A sincere thanks to Andre for encouraging me to submit these patches,
Parthiban for testing this tree on his board, and to the linux-sunxi
community and its resources for pointing me to these abandoned series in
the first place [4].

[1] https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=380887&archive=both&state=*
[2] https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=396055&archive=both&state=*
[3] https://github.com/BrokenR3C0RD/linux-a100/compare/c2ee9f59..allwinner-a100
[4] https://linux-sunxi.org/Linux_mainlining_effort#Work_In_Progress
[5] https://lore.kernel.org/all/20241024170540.2721307-1-masterr3c0rd@epochal.quest/

Changelog - V2:
 - Change name of opp table to match bindings and pass CHECK_DTBS
 - Drop "phy: sun4i-usb: add support for A100 USB PHY" in favor of
   falling back to "allwinner,sun20i-d1-usb-phy".
 - Add "allwinner,sun50i-a100" to the cpufreq-dt-platform blacklist
 - Update dt-bindings changes to keep intended ordering of compatibles
 - Update regs that were too small in the usbphy bindings
 - Add patch to remove CLK_SET_RATE_NO_REPARENT from the MMC drivers.
 - Fix error in the description of "arm64: dts: allwinner: a100: add usb
   related nodes"
 - Add acks and reviews from Andre and Rob


Cody Eksal (5):
  dt-bindings: phy: sun50i-a64: add a100 compatible
  dt-bindings: usb: Add A100 compatible string
  dt-bindings: usb: sunxi-musb: Add A100 compatible string
  clk: sunxi-ng: a100: enable MMC clock reparenting
  dt-bindings: opp: h6: Add A100 operating points

Shuosheng Huang (2):
  cpufreq: sun50i: add a100 cpufreq support
  arm64: dts: allwinner: a100: Add CPU Operating Performance Points
    table

Yangtao Li (6):
  arm64: dts: allwinner: A100: Add PMU mode
  arm64: dts: allwinner: a100: add watchdog node
  arm64: dts: allwinner: a100: add usb related nodes
  arm64: allwinner: A100: enable EHCI, OHCI and USB PHY nodes in Perf1
  arm64: allwinner: a100: Add MMC related nodes
  arm64: dts: allwinner: a100: perf1: Add eMMC and MMC node

 .../allwinner,sun50i-h6-operating-points.yaml |   1 +
 .../phy/allwinner,sun50i-a64-usb-phy.yaml     |  10 +-
 .../usb/allwinner,sun4i-a10-musb.yaml         |   1 +
 .../devicetree/bindings/usb/generic-ehci.yaml |   1 +
 .../devicetree/bindings/usb/generic-ohci.yaml |   1 +
 .../allwinner/sun50i-a100-allwinner-perf1.dts |  60 ++++++
 .../dts/allwinner/sun50i-a100-cpu-opp.dtsi    |  90 ++++++++
 .../arm64/boot/dts/allwinner/sun50i-a100.dtsi | 193 +++++++++++++++++-
 drivers/clk/sunxi-ng/ccu-sun50i-a100.c        |   6 +-
 drivers/cpufreq/cpufreq-dt-platdev.c          |   1 +
 drivers/cpufreq/sun50i-cpufreq-nvmem.c        |  28 +++
 11 files changed, 383 insertions(+), 9 deletions(-)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a100-cpu-opp.dtsi


base-commit: 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907
-- 
2.47.0


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[PATCH v2 03/13] dt-bindings: phy: sun50i-a64: add a100 compatible

[Cody Eksal]

The USB PHY found in the A100 is similar to that found in the D1. Add a
compatible for the A100.

Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
---
Changes in V2:
 - Update binding to allow using the D1 as a compatible.

 .../bindings/phy/allwinner,sun50i-a64-usb-phy.yaml     | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
index f557feca9763..21209126ed00 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
@@ -15,9 +15,13 @@ properties:
     const: 1
 
   compatible:
-    enum:
-      - allwinner,sun20i-d1-usb-phy
-      - allwinner,sun50i-a64-usb-phy
+    oneOf:
+      - enum:
+          - allwinner,sun20i-d1-usb-phy
+          - allwinner,sun50i-a64-usb-phy
+      - items:
+          - const: allwinner,sun50i-a100-usb-phy
+          - const: allwinner,sun20i-d1-usb-phy
 
   reg:
     items:
-- 
2.47.0


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Re: [PATCH v2 03/13] dt-bindings: phy: sun50i-a64: add a100 compatible

[Andre Przywara]

On Thu, 31 Oct 2024 04:02:16 -0300
Cody Eksal <masterr3c0rd@epochal.quest> wrote:

> The USB PHY found in the A100 is similar to that found in the D1. Add a
> compatible for the A100.
> 
> Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>

Reviewed-by: Andre Przywara <andre.przywara@arm.com>

> Acked-by: Rob Herring (Arm) <robh@kernel.org>

Careful with that: you made quite some changes compared to v1, which Rob
ACKed, so I wouldn't carry over his tag here.

Cheers,
Andre

> ---
> Changes in V2:
>  - Update binding to allow using the D1 as a compatible.
> 
>  .../bindings/phy/allwinner,sun50i-a64-usb-phy.yaml     | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
> index f557feca9763..21209126ed00 100644
> --- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
> @@ -15,9 +15,13 @@ properties:
>      const: 1
>  
>    compatible:
> -    enum:
> -      - allwinner,sun20i-d1-usb-phy
> -      - allwinner,sun50i-a64-usb-phy
> +    oneOf:
> +      - enum:
> +          - allwinner,sun20i-d1-usb-phy
> +          - allwinner,sun50i-a64-usb-phy
> +      - items:
> +          - const: allwinner,sun50i-a100-usb-phy
> +          - const: allwinner,sun20i-d1-usb-phy
>  
>    reg:
>      items:


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Re: [PATCH v2 03/13] dt-bindings: phy: sun50i-a64: add a100 compatible

[Cody Eksal]

On 2024/10/31 8:36 am, Andre Przywara wrote:
> On Thu, 31 Oct 2024 04:02:16 -0300
> Cody Eksal <masterr3c0rd@epochal.quest> wrote:
> 
>> The USB PHY found in the A100 is similar to that found in the D1. Add 
>> a
>> compatible for the A100.
>> 
>> Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>
> 
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> 
>> Acked-by: Rob Herring (Arm) <robh@kernel.org>
> 
> Careful with that: you made quite some changes compared to v1, which 
> Rob
> ACKed, so I wouldn't carry over his tag here.
I had made a note of this a few days ago, but it slipped through my 
pre-submission review. I'm terribly sorry; won't make this mistake in 
the future.

- Cody

> Cheers,
> Andre
> 
>> ---
>> Changes in V2:
>>  - Update binding to allow using the D1 as a compatible.
>> 
>>  .../bindings/phy/allwinner,sun50i-a64-usb-phy.yaml     | 10 
>> +++++++---
>>  1 file changed, 7 insertions(+), 3 deletions(-)
>> 
>> diff --git 
>> a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml 
>> b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
>> index f557feca9763..21209126ed00 100644
>> --- 
>> a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
>> +++ 
>> b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
>> @@ -15,9 +15,13 @@ properties:
>>      const: 1
>> 
>>    compatible:
>> -    enum:
>> -      - allwinner,sun20i-d1-usb-phy
>> -      - allwinner,sun50i-a64-usb-phy
>> +    oneOf:
>> +      - enum:
>> +          - allwinner,sun20i-d1-usb-phy
>> +          - allwinner,sun50i-a64-usb-phy
>> +      - items:
>> +          - const: allwinner,sun50i-a100-usb-phy
>> +          - const: allwinner,sun20i-d1-usb-phy
>> 
>>    reg:
>>      items:

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Re: (subset) [PATCH v2 00/13] sunxi: A100/A133 second stage support

[Chen-Yu Tsai]

On Thu, 31 Oct 2024 04:02:13 -0300, Cody Eksal wrote:
> This is V2 of this series [5], with some changes that were requested and
> others that were made after testing on more devices. Thank you for all of
> your feedback! A changelog is available below.
> 
> ==================
> Back in 2020, two Allwinner employees, Yangtao Li and Shuosheng Huang, each
> submitted a patch series for the A100 series of SoCs; [1] intended to add
> support for the watchdog, ARM PMU, DMA, USB, and (e)MMC controller, and [2]
> implemented DVFS support. Some patches from the first series landed, but
> the rest were seemingly abandoned.
> 
> [...]

Applied to dt-for-6.13 in git@github.com:linux-sunxi/linux-sunxi.git, thanks!

[01/13] arm64: dts: allwinner: A100: Add PMU mode
        commit: 248b20ed03545656bd1775ed115369854f58f55c
[02/13] arm64: dts: allwinner: a100: add watchdog node
        commit: f84a3aa7782687ca0fa54f768fc6bb825575f91a
[03/13] dt-bindings: phy: sun50i-a64: add a100 compatible
        commit: 4402ef303d4b90748646568cf48f52eea035057a
[04/13] dt-bindings: usb: Add A100 compatible string
        commit: 1e7d0e2a53e6bf4b43f78858b1fb10aa38259375
[05/13] dt-bindings: usb: sunxi-musb: Add A100 compatible string
        commit: e144e89de0e491ea191847b0dc15a5aeb27951eb
[06/13] arm64: dts: allwinner: a100: add usb related nodes
        commit: c3cc9b02f7490d93635692cf58b0a4e517a60ab2
[09/13] arm64: allwinner: a100: Add MMC related nodes
        commit: fcfbb8d9ec584c256c0a6e1ae3174a21b007f399

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-- 
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Re: (subset) [PATCH v2 00/13] sunxi: A100/A133 second stage support

[Chen-Yu Tsai]

On Thu, 31 Oct 2024 04:02:13 -0300, Cody Eksal wrote:
> This is V2 of this series [5], with some changes that were requested and
> others that were made after testing on more devices. Thank you for all of
> your feedback! A changelog is available below.
> 
> ==================
> Back in 2020, two Allwinner employees, Yangtao Li and Shuosheng Huang, each
> submitted a patch series for the A100 series of SoCs; [1] intended to add
> support for the watchdog, ARM PMU, DMA, USB, and (e)MMC controller, and [2]
> implemented DVFS support. Some patches from the first series landed, but
> the rest were seemingly abandoned.
> 
> [...]

Applied to dt-for-6.13 in git@github.com:linux-sunxi/linux-sunxi.git, thanks!

[10/13] arm64: dts: allwinner: a100: perf1: Add eMMC and MMC node
        commit: af1ad5675a2b5feebb49df0e0ac7dab1aeabfaa8

Best regards,
-- 
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Re: (subset) [PATCH v2 00/13] sunxi: A100/A133 second stage support

[Chen-Yu Tsai]

On Thu, 31 Oct 2024 04:02:13 -0300, Cody Eksal wrote:
> This is V2 of this series [5], with some changes that were requested and
> others that were made after testing on more devices. Thank you for all of
> your feedback! A changelog is available below.
> 
> ==================
> Back in 2020, two Allwinner employees, Yangtao Li and Shuosheng Huang, each
> submitted a patch series for the A100 series of SoCs; [1] intended to add
> support for the watchdog, ARM PMU, DMA, USB, and (e)MMC controller, and [2]
> implemented DVFS support. Some patches from the first series landed, but
> the rest were seemingly abandoned.
> 
> [...]

Applied to dt-for-6.15 in git@github.com:linux-sunxi/linux-sunxi.git, thanks!

[13/13] arm64: dts: allwinner: a100: Add CPU Operating Performance Points table
        commit: a8181e6861fec3068f393d77ff81b2aaf4ea4203

Best regards,
-- 
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