[PATCH 8/8] Initial Pine64 Pinephone support

[Peter Robinson <pbrobinson@gmail.com>]

> On Wed, Jul 22, 2020 at 03:18:40PM +0100, Peter Robinson wrote:
> > The Pine64 Pinephone is a smartphone based on the AllWinner A64 SoC.
> > It has the following features:
> > * 2GB LPDDR3 SDRAM
> > * 5.95 inch 1440x720 HD IPS capacitive touchscreen
> > * 16GB eMMC, mSD slot
> > * Quectel EG25 LTE Modem
> > * Realtek RTL8723CS WiFi/BT
> > * Front and read cameras
> > * Accelerometer, gyro, proximity, ambient light, compass sensors
> > * A USB Type-C, USB Host, DisplayPort alt mode output, 15W 5V 3A Quick Charge, follows USB PD specification
> >
> > Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
> > ---
> >  arch/arm/Kconfig            |  2 +-
> >  configs/pinephone_defconfig | 38 +++++++++++++++++++++++++++++++++++++
> >  2 files changed, 39 insertions(+), 1 deletion(-)
> >  create mode 100644 configs/pinephone_defconfig
> >
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > index e16fe03887..636ba26938 100644
> > --- a/arch/arm/Kconfig
> > +++ b/arch/arm/Kconfig
> > @@ -1004,7 +1004,7 @@ config ARCH_SUNXI
> >       bool "Support sunxi (Allwinner) SoCs"
> >       select BINMAN
> >       select CMD_GPIO
> > -     select CMD_MMC if MMC
> > +select CMD_MMC if MMC
>
> That looks like a typo?

Yes, it is.

> >       select CMD_USB if DISTRO_DEFAULTS
> >       select CLK
> >       select DM
> > diff --git a/configs/pinephone_defconfig b/configs/pinephone_defconfig
> > new file mode 100644
> > index 0000000000..d5750aa954
> > --- /dev/null
> > +++ b/configs/pinephone_defconfig
> > @@ -0,0 +1,38 @@
> > +CONFIG_ARM=y
> > +CONFIG_ARCH_SUNXI=y
> > +CONFIG_SPL=y
> > +CONFIG_MACH_SUN50I=y
> > +CONFIG_SUNXI_DRAM_LPDDR3_STOCK=y
> > +CONFIG_DRAM_CLK=552
> > +CONFIG_DRAM_ZQ=3881949
> > +CONFIG_NR_DRAM_BANKS=1
> > +CONFIG_MMC_SUNXI_SLOT_EXTRA=2
> > +CONFIG_R_I2C_ENABLE=y
> > +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> > +# CONFIG_SPL_SPI_SUNXI is not set
> > +# CONFIG_SPL_DOS_PARTITION is not set
> > +# CONFIG_SPL_EFI_PARTITION is not set
> > +CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-pinephone-1.1"
> > +CONFIG_OF_LIST="sun50i-a64-pinephone-1.1 sun50i-a64-pinephone-1.0"
> > +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> > +CONFIG_DM_REGULATOR=y
> > +CONFIG_DM_REGULATOR_FIXED=y
> > +CONFIG_DM_PWM=y
> > +CONFIG_PWM_SUNXI=y
> > +CONFIG_CMD_GPIO=y
> > +CONFIG_CMD_GPT=y
> > +CONFIG_CMD_I2C=y
> > +CONFIG_CMD_MMC=y
> > +# CONFIG_CMD_MII is not set
> > +# CONFIG_CMD_NFS is not set
> > +# CONFIG_DM_ETH is not set
> > +# CONFIG_PHY is not set
> > +# CONFIG_PHY_GIGE is not set
> > +# CONFIG_SUN8I_EMAC is not set
> > +# CONFIG_PHY_REALTEK is not set
> > +# CONFIG_CMD_SF is not set
> > +# CONFIG_SPI is not set
> > +# CONFIG_DM_SPI is not set
> > +# CONFIG_SPI_FLASH is not set
> > +# CONFIG_SPI_MEM is not set
> > +# CONFIG_DM_SPI_FLASH is not set
>
> I'm not entirely sure why we need to deviate from the default that much
> here. Some options should definitely be disabled (like SUN8I_EMAC), but
> I'm not really sure why it's enabled in the first place, and why we need

Because it's selected by default for the SoC, I suspect that's because
it was assumed that everything would be a dev board and have a wired
ethernet port but there's more and more devices that don't so it
probably makes sense to review that but I didn't want to do that as
part of enabling a device.

> to disable the other network related options (PHY, PHY_GIGE,
> PHY_REALTEK). They shouldn't even be enabled in the first place.

That would be my guess but I suspect it's the same as the SUN8I_EMAC above.

> Similarly, CMD_GPIO, CMD_GPT should be enabled by default.
>
> (and I'm not sure why PWM_SUNXI is here in the first place?)

It's used by the backlight, it shouldn't have made it into this patch,
as the DT bits aren't upstream yet and as I mentioned in my overview
the screen side of things is still a WiP, I must have missed it as I
sliced up my patch set between bits that worked with upstream and bits
that still need some work before they go upstream.

Peter