[RFC PATCH v2 00/14] initial support for "suniv" Allwinner new ARM9 SoC

Mesih Kilinc
2018-11-18T14:16:59Z

This is the second version of RFC patchset for Allwinner ARMv5 F1C100s
SoC. Icenowy (author of the initial patchset) allowed me to continue.
For patch 1~3 which introduces first ARMv5 Allwinner SoC I looked
freescale,imx configs and tried to organize patches better.
Addressed comment from Maxime Ripard and added SoC name to
compatibles and filenames.
Addressed comment from Rob Herring and added dt-bindings.

This is my first patch. Sorry for any inconvenience :-)

Original cover later:

This is the RFC initial patchset for the "new" Allwinner SUNIV ARM9 SoC.

The same die is packaged differently, come with different co-packaged
DRAM or shipped with different SDK; and then made many model names: F23,
F25, F1C100A, F1C100S, F1C200S, F1C500, F1C600, R6, etc. These SoCs all
share a common feature set and are packaged similarly (eLQFP128 for SoCs
without co-packaged DRAM, QFN88 for with DRAM). As their's no
functionality hidden on the QFN88 models (except DRAM interface not
exported), it's not clever to differentiate them. So I will use suniv as
common name of all these SoCs.

As it's the first not ARMv7+ Allwinner SoC to get supported, this
patchset firstly made CONFIG_ARCH_SUNXI a common config item, and let
selectable CONFIG_ARCH_SUNXI_V{5,7} to internally select it. This makes
reusing most work possible. This is PATCH 1~2.

The ARM9 has neither GIC nor arch_timer, like the sun4i/5i Cortex-A8
SoCs. So adapt the IRQ and timer driver used by sun4i/5i to support
suniv. This is PATCH 3~5.

Then it's the common way to support a new SoC -- pinctrl, CCU and
initial DT.

Changes since v1:
- Patch "ARM: add CONFIG_ARCH_SUNXI_V7 for differentiate ARMv5/v7
Allwinner SoCs"
- Instead of using a common bool config use a common menuconfig.
- Use ARCH_MULTI_V7 to differentiate V7 SoCs.
- Addressed comment from Julian Calaby
- Patch "ARM: sunxi: add Allwinner ARMv5 SoCs"
- Use ARCH_MULTI_V5 to differentiate V5 SoCs.
- removed "allwinner,suniv" board compatible string
- Added dt-bindings
- Patch "irqchip/sun4i: add support for suniv interrupt controller"
- Added dt-bindings
- Changed "allwinner,suniv-ic" to "allwinner,suniv-f1c100s-ic"
- Patch "clocksource: sun4i: add a compatible for suniv"
- Added dt-bindings
- Changed "allwinner,suniv-timer" to "allwinner,suniv-f1c100s-timer"
- Patch "pinctrl: sunxi: add support for suniv F1C100s (newer F-series SoCs)"
- Added dt-bindings
- Renamed suniv-pinctrl to suniv-f1c100s-pinctrl
- Patch "clk: sunxi-ng: add support for suniv F1C100s SoC"
- Added dt-bindings
- Renamed suniv-ccu to suniv-f1c100s-ccu
- Patch "ARM: suniv: f1c100s: add device tree for Lichee Pi Nano"
- Addressed comment from Rask Ingemann Lambertsen

Mesih Kilinc (14):
ARM: add CONFIG_ARCH_SUNXI_V7 for differentiate ARMv5/v7 Allwinner
SoCs
dt-bindings: arm: Add new Allwinner ARMv5 F1C100s SoC
ARM: sunxi: add Allwinner ARMv5 SoCs
dt-bindings: interrupt-controller: Add suniv interrupt-controller
irqchip/sun4i: add support for suniv interrupt controller
dt-bindings: timer: Add Allwinner suniv timer
clocksource: sun4i: add a compatible for suniv
clocksource/drivers/sun4i: register as sched_clock on suniv
dt-bindings: pinctrl: Add Allwinner suniv F1C100s pinctrl
pinctrl: sunxi: add support for suniv F1C100s (newer F-series SoCs)
dt-bindings: clock: Add Allwinner suniv F1C100s CCU
clk: sunxi-ng: add support for suniv F1C100s SoC
ARM: dts: suniv: add initial DTSI file for F1C100s
ARM: suniv: f1c100s: add device tree for Lichee Pi Nano

Documentation/devicetree/bindings/arm/sunxi.txt | 1 +
.../devicetree/bindings/clock/sunxi-ccu.txt | 1 +
.../interrupt-controller/allwinner,sun4i-ic.txt | 5 +-
.../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 1 +
.../bindings/timer/allwinner,sun4i-timer.txt | 5 +-
arch/arm/boot/dts/Makefile | 2 +
arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts | 26 +
arch/arm/boot/dts/suniv-f1c100s.dtsi | 158 ++++++
arch/arm/mach-sunxi/Kconfig | 39 +-
arch/arm/mach-sunxi/Makefile | 3 +-
arch/arm/mach-sunxi/sunxi_v5.c | 22 +
drivers/clk/sunxi-ng/Kconfig | 5 +
drivers/clk/sunxi-ng/Makefile | 1 +
drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c | 536 +++++++++++++++++++++
drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h | 34 ++
drivers/clocksource/sun4i_timer.c | 5 +-
drivers/irqchip/irq-sun4i.c | 47 +-
drivers/pinctrl/sunxi/Kconfig | 4 +
drivers/pinctrl/sunxi/Makefile | 1 +
drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c | 417 ++++++++++++++++
include/dt-bindings/clock/suniv-ccu-f1c100s.h | 69 +++
include/dt-bindings/reset/suniv-ccu-f1c100s.h | 37 ++
22 files changed, 1401 insertions(+), 18 deletions(-)
create mode 100644 arch/arm/boot/dts/suniv-f1c100s-licheepi-nano.dts
create mode 100644 arch/arm/boot/dts/suniv-f1c100s.dtsi
create mode 100644 arch/arm/mach-sunxi/sunxi_v5.c
create mode 100644 drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c
create mode 100644 drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h
create mode 100644 drivers/pinctrl/sunxi/pinctrl-suniv-f1c100s.c
create mode 100644 include/dt-bindings/clock/suniv-ccu-f1c100s.h
create mode 100644 include/dt-bindings/reset/suniv-ccu-f1c100s.h

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2.7.4