| Message ID | 20190221154458.23763-1-linus.walleij@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | ARM: ixp4xx: Modernize and DT support | expand |
Hi Linus, given your recent work and apparent interest on IXP4xx, I wonder if you would like to become the maintainer of Linux support for this arch. I have stopped using IXP4xx years ago, and I can't dedicate much time to it at the moment. I'm sure it would be much better with you as the maintainer. What do you think?
On Mon, Mar 18, 2019 at 8:16 AM Krzysztof Hałasa <khalasa@piap.pl> wrote: > given your recent work and apparent interest on IXP4xx, I wonder if > you would like to become the maintainer of Linux support for this arch. > I have stopped using IXP4xx years ago, and I can't dedicate much time > to it at the moment. I'm sure it would be much better with you as the > maintainer. > > What do you think? OK I will append a patch adding me as maintainer when I respin. Then you can resign later if you think I do an OK job :D I think Imre will back me up for the OpenWrt parts, they have a bunch of boards they need to keep supporting, so the plan is to build this out step by step. Yours, Linus Walleij
Linus Walleij <linus.walleij@linaro.org> writes: > OK I will append a patch adding me as maintainer when I respin. > Then you can resign later if you think I do an OK job :D > > I think Imre will back me up for the OpenWrt parts, they have > a bunch of boards they need to keep supporting, so the plan > is to build this out step by step. Very well. I'm sure you will do great.
This modernizes the IXP4xx platform and adds initial Device Tree Support. We migrate to MULTI_IRQ_HANDLER, bumps the IRQs to offset 16, converts to SPARSE_IRQ, then we add proper subsystem drivers in each subsystem for irqchip, GPIO and clocksource and switch over to using these new drivers. This patch set represents what I want to merge for v5.2 early after the next merge window. I already have working ethernet but that will be a bonus feature if we can get it in or will be deferred to v5.3 so that it can be applied in isolation. Major changes from v1: - Added patches for moving NPE and queue manager down to drivers/soc/ixp4xx - Added device tree bindings and code to probe NPE and queue manager from device tree A working set of base patches that boots to prompt from initramfs on NSLU2 and GW2358-4 and also includes the series for ethernet support is provided on this branch: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/log/?h=ixp4 Obviously I am looking for the IXP4xx maintainers to ACK the patch set. Linus Walleij (30): ARM: ixp4xx: Convert to MULTI_IRQ_HANDLER ARM: ixp4xx: Pass IRQ resource to beeper ARM: ixp4xx: Convert to SPARSE_IRQ irqchip: Add driver for IXP4xx gpio: ixp4xx: Add driver for the IXP4xx GPIO ARM: ixp4xx: Switch to use new IRQ+GPIO drivers clocksource/drivers/ixp4xx: Add driver ARM: ixp4xx: Switch to use new timer driver irqchip: ixp4xx: Add DT bindings irqchip: ixp4xx: Add OF initialization support clocksource/drivers/ixp4xx: Add DT bindings clocksource/drivers/ixp4xx: Add OF initialization support gpio: ixp4xx: Add DT bindings gpio: ixp4xx: Add OF probing support ARM: ixp4xx: Add DT bindings ARM: ixp4xx: Add device tree boot support ARM: dts: Add some initial IXP4xx device trees ARM: ixp4xx: Move NPE and QMGR to drivers/soc ARM: ixp4xx: Move IXP4xx QMGR and NPE headers ARM: ixp4xx: Turn the NPE into a platform device ARM: ixp4xx: Turn the QMGR into a platform device soc: ixp4xx: npe: Pass addresses as resources soc: ixp4xx: Uninline several functions soc: ixp4xx: Remove unused functions soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: qmgr: Add DT probe code ARM: dts: Add queue manager and NPE to the IXP4xx DTSI .../devicetree/bindings/arm/intel-ixp4xx.yaml | 22 + ...ntel,ixp4xx-network-processing-engine.yaml | 44 ++ .../bindings/gpio/intel,ixp4xx-gpio.txt | 38 ++ .../intel,ixp4xx-interrupt.yaml | 57 +++ .../misc/intel,ixp4xx-queue-manager.yaml | 57 +++ .../bindings/timer/intel,ixp4xx-timer.yaml | 42 ++ MAINTAINERS | 17 +- arch/arm/Kconfig | 5 +- arch/arm/boot/dts/Makefile | 3 + .../boot/dts/intel-ixp42x-linksys-nslu2.dts | 109 ++++ arch/arm/boot/dts/intel-ixp42x.dtsi | 25 + .../dts/intel-ixp43x-gateworks-gw2358.dts | 94 ++++ arch/arm/boot/dts/intel-ixp43x.dtsi | 15 + arch/arm/boot/dts/intel-ixp45x-ixp46x.dtsi | 34 ++ arch/arm/boot/dts/intel-ixp4xx.dtsi | 70 +++ arch/arm/mach-ixp4xx/Kconfig | 27 +- arch/arm/mach-ixp4xx/Makefile | 5 +- arch/arm/mach-ixp4xx/avila-pci.c | 2 + arch/arm/mach-ixp4xx/avila-setup.c | 2 + arch/arm/mach-ixp4xx/common.c | 484 +++--------------- arch/arm/mach-ixp4xx/coyote-pci.c | 2 + arch/arm/mach-ixp4xx/coyote-setup.c | 2 + arch/arm/mach-ixp4xx/dsmg600-pci.c | 2 + arch/arm/mach-ixp4xx/dsmg600-setup.c | 5 +- arch/arm/mach-ixp4xx/fsg-pci.c | 2 + arch/arm/mach-ixp4xx/fsg-setup.c | 2 + arch/arm/mach-ixp4xx/gateway7001-pci.c | 2 + arch/arm/mach-ixp4xx/gateway7001-setup.c | 2 + arch/arm/mach-ixp4xx/gtwx5715-pci.c | 2 + arch/arm/mach-ixp4xx/gtwx5715-setup.c | 2 + .../mach-ixp4xx/include/mach/entry-macro.S | 41 -- arch/arm/mach-ixp4xx/include/mach/irqs.h | 75 --- .../mach-ixp4xx/include/mach/ixp4xx-regs.h | 94 ---- arch/arm/mach-ixp4xx/include/mach/qmgr.h | 204 -------- arch/arm/mach-ixp4xx/irqs.h | 68 +++ arch/arm/mach-ixp4xx/ixdp425-pci.c | 2 + arch/arm/mach-ixp4xx/ixdp425-setup.c | 2 + arch/arm/mach-ixp4xx/ixdpg425-pci.c | 2 + arch/arm/mach-ixp4xx/ixp4xx-of.c | 60 +++ arch/arm/mach-ixp4xx/nas100d-pci.c | 2 + arch/arm/mach-ixp4xx/nas100d-setup.c | 5 +- arch/arm/mach-ixp4xx/nslu2-pci.c | 2 + arch/arm/mach-ixp4xx/nslu2-setup.c | 12 +- arch/arm/mach-ixp4xx/wg302v2-pci.c | 2 + arch/arm/mach-ixp4xx/wg302v2-setup.c | 2 + drivers/clocksource/Kconfig | 7 + drivers/clocksource/Makefile | 1 + drivers/clocksource/timer-ixp4xx.c | 284 ++++++++++ drivers/crypto/ixp4xx_crypto.c | 4 +- drivers/gpio/Kconfig | 12 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-ixp4xx.c | 474 +++++++++++++++++ drivers/input/misc/ixp4xx-beeper.c | 20 +- drivers/irqchip/Kconfig | 6 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-ixp4xx.c | 407 +++++++++++++++ drivers/net/ethernet/xscale/ixp4xx_eth.c | 14 +- drivers/net/wan/ixp4xx_hss.c | 4 +- drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/ixp4xx/Kconfig | 16 + drivers/soc/ixp4xx/Makefile | 2 + .../soc/ixp4xx/ixp4xx-npe.c | 66 ++- .../soc/ixp4xx/ixp4xx-qmgr.c | 186 +++++-- drivers/watchdog/ixp4xx_wdt.c | 9 + include/linux/irqchip/irq-ixp4xx.h | 12 + include/linux/platform_data/timer-ixp4xx.h | 11 + .../mach => include/linux/soc/ixp4xx}/npe.h | 2 - include/linux/soc/ixp4xx/qmgr.h | 91 ++++ 69 files changed, 2467 insertions(+), 913 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml create mode 100644 Documentation/devicetree/bindings/firmware/intel,ixp4xx-network-processing-engine.yaml create mode 100644 Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml create mode 100644 Documentation/devicetree/bindings/misc/intel,ixp4xx-queue-manager.yaml create mode 100644 Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml create mode 100644 arch/arm/boot/dts/intel-ixp42x-linksys-nslu2.dts create mode 100644 arch/arm/boot/dts/intel-ixp42x.dtsi create mode 100644 arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts create mode 100644 arch/arm/boot/dts/intel-ixp43x.dtsi create mode 100644 arch/arm/boot/dts/intel-ixp45x-ixp46x.dtsi create mode 100644 arch/arm/boot/dts/intel-ixp4xx.dtsi delete mode 100644 arch/arm/mach-ixp4xx/include/mach/entry-macro.S delete mode 100644 arch/arm/mach-ixp4xx/include/mach/irqs.h delete mode 100644 arch/arm/mach-ixp4xx/include/mach/qmgr.h create mode 100644 arch/arm/mach-ixp4xx/irqs.h create mode 100644 arch/arm/mach-ixp4xx/ixp4xx-of.c create mode 100644 drivers/clocksource/timer-ixp4xx.c create mode 100644 drivers/gpio/gpio-ixp4xx.c create mode 100644 drivers/irqchip/irq-ixp4xx.c create mode 100644 drivers/soc/ixp4xx/Kconfig create mode 100644 drivers/soc/ixp4xx/Makefile rename arch/arm/mach-ixp4xx/ixp4xx_npe.c => drivers/soc/ixp4xx/ixp4xx-npe.c (94%) rename arch/arm/mach-ixp4xx/ixp4xx_qmgr.c => drivers/soc/ixp4xx/ixp4xx-qmgr.c (66%) create mode 100644 include/linux/irqchip/irq-ixp4xx.h create mode 100644 include/linux/platform_data/timer-ixp4xx.h rename {arch/arm/mach-ixp4xx/include/mach => include/linux/soc/ixp4xx}/npe.h (95%) create mode 100644 include/linux/soc/ixp4xx/qmgr.h