[PATCH 1/3] arm: Add support for Qualcomm IPQ40xx family

[Robert Marko]

On Fri, Jul 10, 2020 at 5:25 PM Tom Rini <trini at konsulko.com> wrote:

> On Mon, Jul 06, 2020 at 10:37:54AM +0200, Robert Marko wrote:
>
> > This introduces initial support for the popular Qualcomm
> > IPQ40x8 and IPQ40x9 WiSoC series.
> >
> > IPQ40xx series have 4x Cortex A7 ARM-v7A cores.
> > Supported are: IPQ4018, IPQ4019, IPQ4028 and IPQ4029.
> >
> > IPQ40x8 and IPQ40x9 use the same cores, but differ in
> > addressable RAM size (1GB for IPQ40x9 and 256MB for IPQ40x8)
> > and supported peripherals (IPQ40x8 lacks RGMII, LCD controller
> > and EMMC/SDHCI controllers).
> >
> > IQP4028/IPQ4029 models differ from IPQ4018/IPQ4019 only
> > by their rated temperatures rates with IPQ402X models being
> > rated for wider temperature ranges.
> >
> > Initially this supports:
> > * Simple clock driver (Only for UART1 now, will be extended)
> > * Pinctrl driver (Supports UARTX and GPIO now, will be extended)
> > * GPIOs already supported by msm_gpio driver with updates
> > * UARTs already supported by serial_msm driver with updates
> >
> > Further peripherals will come in later patches.
> >
> > Signed-off-by: Robert Marko <robert.marko at sartura.hr>
> > ---
> >  MAINTAINERS                                |   7 ++
> >  arch/arm/Kconfig                           |  13 ++
> >  arch/arm/Makefile                          |   1 +
> >  arch/arm/dts/qcom-ipq4019.dtsi             |  79 ++++++++++++
>
> The goal with dts files (that aren't the -u-boot.dtsi ones of course) is
> that they come from upstream Linux.  How far along is that with this
> SoC?  Everything else here looks fine, thanks.
>
Well, I tried to keep as much as possible identical or really similar to
the upstream Linux nodes,
but there are still differences due to how drivers are simplified.

Thanks

>
> --
> Tom
>