[v1,0/8] Add EcoNet EN751221 MIPS platform support

Message

Caleb James DeLisle March 21, 2025, 1:46 p.m. UTC

EcoNet MIPS SoCs are big endian machines based on 34Kc and 1004Kc
processors. They are found in xDSL and xPON modems, and contain PCM
(VoIP), Ethernet, USB, GPIO, I2C, SPI (Flash), UART, and PCIe.

The EcoNet MIPS SoCs are divided broadly into two families, the
EN751221 family based on the 34Kc, and the EN751627 family based on
the 1004Kc. Individual SoCs within a family are roughly the same, but
with different peripherals.

This patchset adds very basic "boots to a console" support for the
EN751221 family. EN751627 support and additional drivers will come in
a future patchset.

Note that while EcoNet is similar to Airoha (AN7513, AN7581) in terms
of peripherals, it is different because Airoha is based on ARM.

This patchset is against mips-next.

Caleb James DeLisle (8):
  dt-bindings: vendor-prefixes: Add EcoNet
  dt-bindings: interrupt-controller: Add EcoNet EN751221 INTC
  irqchip: Add EcoNet EN751221 INTC
  dt-bindings: timer: Add EcoNet HPT CPU Timer
  clocksource/drivers: Add EcoNet Timer HPT driver
  dt-bindings: mips: Add EcoNet platform binding
  mips: Add EcoNet MIPS platform support
  MAINTAINERS: Add EcoNet MIPS platform entry

 .../econet,en751221-intc.yaml                 |  77 +++++
 .../devicetree/bindings/mips/econet.yaml      |  27 ++
 .../bindings/timer/econet,timer-hpt.yaml      |  58 ++++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 MAINTAINERS                                   |  12 +
 arch/mips/Kbuild.platforms                    |   1 +
 arch/mips/Kconfig                             |  25 ++
 arch/mips/boot/compressed/uart-16550.c        |   5 +
 arch/mips/boot/dts/Makefile                   |   1 +
 arch/mips/boot/dts/econet/Makefile            |   2 +
 arch/mips/boot/dts/econet/en751221.dtsi       |  62 ++++
 .../boot/dts/econet/en751221_test_image.dts   |  19 ++
 arch/mips/econet/Kconfig                      |  42 +++
 arch/mips/econet/Makefile                     |   2 +
 arch/mips/econet/Platform                     |   5 +
 arch/mips/econet/init.c                       |  78 +++++
 drivers/clocksource/Kconfig                   |   8 +
 drivers/clocksource/Makefile                  |   1 +
 drivers/clocksource/timer-econet-hpt.c        | 221 ++++++++++++++
 drivers/irqchip/Kconfig                       |   5 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-econet-en751221.c         | 280 ++++++++++++++++++
 22 files changed, 934 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/econet,en751221-intc.yaml
 create mode 100644 Documentation/devicetree/bindings/mips/econet.yaml
 create mode 100644 Documentation/devicetree/bindings/timer/econet,timer-hpt.yaml
 create mode 100644 arch/mips/boot/dts/econet/Makefile
 create mode 100644 arch/mips/boot/dts/econet/en751221.dtsi
 create mode 100644 arch/mips/boot/dts/econet/en751221_test_image.dts
 create mode 100644 arch/mips/econet/Kconfig
 create mode 100644 arch/mips/econet/Makefile
 create mode 100644 arch/mips/econet/Platform
 create mode 100644 arch/mips/econet/init.c
 create mode 100644 drivers/clocksource/timer-econet-hpt.c
 create mode 100644 drivers/irqchip/irq-econet-en751221.c