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[v4,00/11] ARM: sunxi: add Allwinner B288 and the PocketBook Verse

Message ID 20261012100816.331033-1-pmazzini@gmail.com (mailing list archive)
Headers
Series ARM: sunxi: add Allwinner B288 and the PocketBook Verse |

Message

Pablo Mazzini Oct. 12, 2026, 10:08 a.m. UTC 
The Allwinner B288 (sun8iw10p1) is a dual Cortex-A7 SoC used in e-book
readers. This series adds the CCU and pin controller drivers, the RTC,
I2C, NMI and watchdog compatibles, the SoC .dtsi, and one board: the
PocketBook Verse (PB629), a 6" reader.

The B288 is closest to the A64: most of its PLLs are bit-identical.
The clock and pin descriptions come from Allwinner's BSP, cross-checked
against ccu-sun50i-a64.c. Tested on a PB629, boots to userspace.

The pin controller relies on "pinctrl: sunxi: dt: number the IRQ banks
from the first one that has IRQs" for correct PIO interrupt mapping.

Changes since v3:
  - CCU: reference parents with clk_parent_data and clk_hw pointers,
    as newer sunxi-ng drivers do; add the audio PLL's sigma-delta
    settings, as on the A64; fix the PLL_24M rate and parent the PLLs
    to it.
  - RTC: register the 32 kHz clocks, reusing the A23 data (Sashiko).
  - DTS: take osc32k from the RTC, as on the A64.
  - DTS: allow the eMMC up to 150 MHz, as on the A523.

Changes since v2:
  - Drop the MMC binding patch, applied by Ulf.
  - Rebase onto sunxi/for-next.
  - Constrain the RTC clock outputs and pinctrl interrupts in the
    bindings (Sashiko).
  - Add a B288 watchdog compatible (Andre).
  - DTS: drop the memory node, the arch timer workaround and the
    sunxi.c entry; add disable-wp and the eMMC 1.8V modes; DLDO1 no
    longer always-on; mainline pin function names (Andre).

Changes since v1:
  - Add this cover letter.
  - Drop both new bindings; add the compatibles to the existing
    allwinner,sun4i-a10-{ccu,pinctrl}.yaml instead.
  - Rewrite the pinctrl driver in the DT-provided pinmux style.

Pablo Mazzini (11):
  dt-bindings: clock: sun4i-a10-ccu: add Allwinner B288
  clk: sunxi-ng: add Allwinner B288 CCU driver
  dt-bindings: pinctrl: sun4i-a10: add Allwinner B288
  pinctrl: sunxi: add Allwinner B288 pin controller driver
  dt-bindings: rtc: sun6i-a31: add Allwinner B288
  rtc: sun6i: add Allwinner B288 compatible
  dt-bindings: i2c: mv64xxx: add Allwinner B288
  dt-bindings: interrupt-controller: add Allwinner B288 NMI
  dt-bindings: watchdog: sun4i-a10-wdt: add Allwinner B288
  dt-bindings: arm: sunxi: add PocketBook Verse
  ARM: dts: allwinner: add B288 and the PocketBook Verse

 .../devicetree/bindings/arm/sunxi.yaml        |   5 +
 .../clock/allwinner,sun4i-a10-ccu.yaml        |   1 +
 .../bindings/i2c/marvell,mv64xxx-i2c.yaml     |   1 +
 .../allwinner,sun7i-a20-sc-nmi.yaml           |   1 +
 .../pinctrl/allwinner,sun4i-a10-pinctrl.yaml  |  22 +
 .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml |   3 +
 .../watchdog/allwinner,sun4i-a10-wdt.yaml     |   1 +
 arch/arm/boot/dts/allwinner/Makefile          |   1 +
 .../allwinner/sun8i-b288-pocketbook-verse.dts | 114 +++
 arch/arm/boot/dts/allwinner/sun8i-b288.dtsi   | 292 +++++++
 drivers/clk/sunxi-ng/Kconfig                  |   5 +
 drivers/clk/sunxi-ng/Makefile                 |   1 +
 drivers/clk/sunxi-ng/ccu-sun8i-b288.c         | 749 ++++++++++++++++++
 drivers/clk/sunxi-ng/ccu-sun8i-b288.h         |  10 +
 drivers/pinctrl/sunxi/Kconfig                 |  10 +
 drivers/pinctrl/sunxi/Makefile                |   1 +
 drivers/pinctrl/sunxi/pinctrl-sun8i-b288.c    |  49 ++
 drivers/rtc/rtc-sun6i.c                       |   5 +
 include/dt-bindings/clock/sun8i-b288-ccu.h    |  82 ++
 include/dt-bindings/reset/sun8i-b288-ccu.h    |  45 ++
 20 files changed, 1398 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-b288-pocketbook-verse.dts
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-b288.dtsi
 create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-b288.c
 create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-b288.h
 create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun8i-b288.c
 create mode 100644 include/dt-bindings/clock/sun8i-b288-ccu.h
 create mode 100644 include/dt-bindings/reset/sun8i-b288-ccu.h

Comments

Alexandre Belloni Oct. 19, 2026, 8:12 p.m. UTC | #1 
On Mon, 12 Oct 2026 11:08:05 +0100, Pablo Mazzini wrote:
> The Allwinner B288 (sun8iw10p1) is a dual Cortex-A7 SoC used in e-book
> readers. This series adds the CCU and pin controller drivers, the RTC,
> I2C, NMI and watchdog compatibles, the SoC .dtsi, and one board: the
> PocketBook Verse (PB629), a 6" reader.
> 
> The B288 is closest to the A64: most of its PLLs are bit-identical.
> The clock and pin descriptions come from Allwinner's BSP, cross-checked
> against ccu-sun50i-a64.c. Tested on a PB629, boots to userspace.
> 
> [...]

Applied, thanks!

[05/11] dt-bindings: rtc: sun6i-a31: add Allwinner B288
        https://git.kernel.org/abelloni/c/51f30cb855f0
[06/11] rtc: sun6i: add Allwinner B288 compatible
        https://git.kernel.org/abelloni/c/3784706c87c2

Best regards,