[PATCH v7 00/19] arm64: sunxi: Initial Allwinner H616 SoC support

Andre Przywara
2021-06-15T11:07:06Z

Hi,

some update on the H616 support series:
Compared to v6 the USB quirk patch (14/19) got slightly reworked: we
now take the PHY2 clocks and resets directly from the PHY node, and
enable them also for the other PHYs. That saves us from referencing
them from the HCIs and makes the DT look much saner.
The new patches 05/19 and 06/19 fix the RTC alarm setting (the setup
registers have changed) and force the RTC to ignore any clocks, so we
can later add the PLL clock if needed, without it clashing with the LOSC
oscillator clock of other SoCs.
Lee took the AXP interrupt patch (02/19) already (many thanks!), but I
still include it here for the sake of completeness.
For a complete changelog, see below.

Based on 5.13-rc1. Let me know if you need a different base.

Thanks!
Andre

==================
This series gathers patches to support the Allwinner H616 SoC. This is
a rather uninspired SoC (Quad-A53 with the usual peripherals), but
allows for some cheap development boards and TV boxes, and supports
up to 4GB of DRAM.

Various DT binding patches are sprinkled throughout the series, to add
the new compatible names right before they are used.
Patch 2 teaches the AXP MFD driver to get along without having an
interrupt, as the missing NMI pin on the H616 leads to some boards not
having the AXP IRQ line connected.
Patch 4-7 add support for the new RTC: the date is now stored as a
linear number, not broken down into day-month-year. The benefit is that
this lifts the limit of the old date counter, which would have rolled
over around 2032. Also the alarm setting is using the same storage
format as the current time, compared to the number of seconds left used
in existing SoCs.
Patch 9 adds a tweak to the EMAC driver, to deal with the second EMAC
clock used for the second Ethernet controller.
This is somewhat optional for the current .dts, as this doesn't use
the second EMAC (yet).
Patches 12-15 add the USB support, there are several small changes needed
to the Allwinner PHY driver to make this work. Some hardware changes look
like accidents ;-)
Eventually we get the .dtsi for the SoC in patch 16, and the .dts for
the OrangePi Zero2 board[1] in the penultimate patch, followed by
the .dts for the X96 Mate TV box[2] in the final commit.

U-Boot and Trusted Firmware support is now merged in released versions,
it allows booting via FEL or SD card, also you can TFTP kernels in on
the OrangePi Zero 2 board.

Many thanks to Jernej for his tremendous help on this, also for the
awesome input and help from the #linux-sunxi Freenode channel.

The whole series (including the other patches) can also be found here:
https://github.com/apritzel/linux/commits/h616-v7

Happy reviewing!

Cheers,
Andre

[1] https://linux-sunxi.org/Orange_Pi_Zero_2
[2] https://linux-sunxi.org/X96_Mate

Changelog v6 .. v7:
- Fix AXP305 binding documentation blunder (01/19)
- Improve new linear day support (use existing conversion functions) (04/19)
- Add support for changed RTC alarm registers (05/19)
- Add support for RTCs without a LOSC clock (06/19)
- Rework USB PHY2 SIDDQ quirk to use PHY clocks directly (14/19)
- Add X96 Mate compatible string to binding doc (17/19)
- Add Rob's ACKs

Changelog v5 .. v6:
- Drop already merged clock, pinctrl and MMC support from this series
- Properly fix AXP support by skipping power key initialisation
- Add patch to support new RTC date storage encoding
- Re-add USB HCI PHY refactoring
- Add patch to allow USB reset line sharing
- Add patch to introduce quirk for PHY2 SIDDQ clearing
- Re-add USB nodes to the .dtsi
- Add USB gadget support
- Add DT for X96 Mate TV box

Changelog v4 .. v5:
- Fix CCU binding to pass dtbs_check
- Add RSB compatible string to binding doc
- Rename IR pin name to pass dtbs_check
- Add EMAC compatible string to binding doc
- Drop USB PHY support and binding doc patches
- Drop USB nodes from .dtsi and .dts
- Drop second EMAC node from .dtsi

Changelog v3 .. v4:
- Drop MMC and pinctrl matches (already in some -next trees)
- Add Maxime's Acks
- Add patch to update the AXP MFD DT bindings
- Add new patch (05/21) to fix axp20x-pek driver
- Change AXP IRQ fix to check for invalid IRQ line number
- Split joint DT bindings patch (v3 18/21) into subsystems
- move dwmac variable to keep christmas tree
- Use enums for USB PHY compatible strings in DT binding
- Enable watchdog (briefly verified to work)
- Add PHY2 to HCI1&3, this fixes USB
- limit r-ccu register frame length to not collide with NMI controller
- add interrupt-controller property to AXP DT node

Changelog v2 .. v3:
- Add Rob's Acks
- Drop redundant maxItems from pinctrl DT binding
- Rename h_i2s* to just i2s* in pinctrl names
- Use more declarative i2s0_d{in,out}{0,1} names
- Add RSB pins to pinctrl
- Include RSB clocks (sharing with newly added H6 versions)
- Fix CEC clock (add 2nd enable bit, also fix predivider flag)
- Rename PMU_UNK1 register in USB PHY
- Add USB and MUSB DT binding patches
- Add MMC/SD speed modes to .dtsi

Changelog v1 .. v2:
- pinctrl: adjust irq bank map to cover undocumented GPIO bank IRQs
- use differing h_i2s0 pin output names
- r-ccu: fix number of used clocks
- ccu: remove PLL-PERIPHy(4X)
- ccu: fix gpu1 divider range
- ccu: fix usb-phy3 parent
- ccu: add missing TV clocks
- ccu: rework to CLK_OF_DECLARE style
- ccu: enable output bit for PLL clocks
- ccu: renumber clocks
- .dtsi: drop sun50i-a64-system-control fallback
- .dtsi: drop unknown SRAM regions
- .dtsi: add more (undocumented) GPIO interrupts
- .dtsi: fix I2C3 pin names
- .dtsi: use a100-emmc fallback for MMC2
- .dtsi: add second EMAC controller
- .dtsi: use H3 MUSB controller fallback
- .dtsi: fix frame size for USB PHY PMU registers
- .dtsi: add USB0 PHY references
- .dtsi: fix IR controller clock source
- .dts: fix LED naming and swap pins
- .dts: use 5V supply parent for USB supply
- .dts: drop dummy IRQ for AXP
- .dts: enable 3V3 header pin power rail
- .dts: add SPI flash node
- .dts: make USB-C port peripheral only
- add IRQ-less AXP support
- add two patches to support more than one EMAC clock
- add patch to rework and extend USB PHY support
- add DT binding documentation patches

Andre Przywara (19):
dt-bindings: mfd: axp20x: Add AXP305 compatible (plus optional IRQ)
mfd: axp20x: Allow AXP 806 chips without interrupt lines
dt-bindings: rtc: sun6i: Add H616 compatible string
rtc: sun6i: Add support for linear day storage
rtc: sun6i: Add support for broken-down alarm registers
rtc: sun6i: Add support for RTCs without external LOSCs
rtc: sun6i: Add Allwinner H616 support
dt-bindings: net: sun8i-emac: Add H616 compatible string
net: stmmac: dwmac-sun8i: Prepare for second EMAC clock register
dt-bindings: usb: Add H616 compatible string
dt-bindings: usb: sunxi-musb: Add H616 compatible string
phy: sun4i-usb: Rework HCI PHY (aka. "pmu_unk1") handling
phy: sun4i-usb: Allow reset line to be shared
phy: sun4i-usb: Introduce port2 SIDDQ quirk
phy: sun4i-usb: Add support for the H616 USB PHY
arm64: dts: allwinner: Add Allwinner H616 .dtsi file
dt-bindings: arm: sunxi: Add two H616 board compatible strings
arm64: dts: allwinner: h616: Add OrangePi Zero 2 board support
arm64: dts: allwinner: h616: Add X96 Mate TV box support

.../devicetree/bindings/arm/sunxi.yaml | 10 +
.../devicetree/bindings/mfd/axp20x.txt | 3 +-
.../net/allwinner,sun8i-a83t-emac.yaml | 4 +-
.../phy/allwinner,sun8i-h3-usb-phy.yaml | 4 +-
.../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 15 +
.../usb/allwinner,sun4i-a10-musb.yaml | 3 +
arch/arm64/boot/dts/allwinner/Makefile | 2 +
.../allwinner/sun50i-h616-orangepi-zero2.dts | 245 ++++++
.../dts/allwinner/sun50i-h616-x96-mate.dts | 201 +++++
.../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 735 ++++++++++++++++++
drivers/mfd/axp20x.c | 24 +-
.../net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 12 +-
drivers/phy/allwinner/phy-sun4i-usb.c | 103 ++-
drivers/rtc/rtc-sun6i.c | 161 ++--
14 files changed, 1445 insertions(+), 77 deletions(-)
create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-x96-mate.dts
create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi

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2.17.5