[PATCH 00/11] riscv: Add Sipeed Maix support

[Sean Anderson <seanga2@gmail.com>]

This patch series adds support for Sipeed Maix boards and the
Kendryte K210 CPU. Currently, only the Maix Bit V2.0 is supported,
however other models are similar. This series depends on
<https://patchwork.ozlabs.org/patch/1215326/> and
<https://patchwork.ozlabs.org/patch/1215327/>.
(log: Include missing header for log.h)
(clk: Include missing headers for linux/clk-provider.h)

To flash u-boot to a maix bit, run
kflash -tp /dev/<your tty here> -B bit_mic -S SLOW u-boot-dtb.bin

Boot output should look like the following:

U-Boot 2020.01-rc5+ (Dec 31 2019 - 16:05:31 -0500)

CPU:   rv64acdfim
DRAM:  8 MiB
MMC:
In:    serial at 38000000
Out:   serial at 38000000
Err:   serial at 38000000
Model: Sipeed Maix
=>

Sean Anderson (11):
  clk: Always use the supplied struct clk
  clk: Check that ops of composite clock components exist before calling
  riscv: Add headers for asm/global_data.h
  riscv: Add an option to default to RV64I
  riscv: Enable SiFive UART support pre-relocation
  riscv: Add initial Sipeed Maix support
  riscv: Add device tree for K210
  riscv: Add K210 sysctl support
  riscv: Add K210 pll support
  riscv: Add K210 clock support
  riscv: Add option to disable writes to mcounteren

 arch/riscv/Kconfig                      |  16 +
 arch/riscv/cpu/cpu.c                    |   2 +
 arch/riscv/dts/Makefile                 |   1 +
 arch/riscv/dts/k210-maix-bit.dts        |  42 +++
 arch/riscv/dts/k210.dtsi                | 455 ++++++++++++++++++++++++
 arch/riscv/include/asm/global_data.h    |   2 +
 arch/riscv/include/asm/k210_sysctl.h    |  43 +++
 arch/riscv/lib/Makefile                 |   1 +
 arch/riscv/lib/k210_sysctl.c            |  22 ++
 board/sipeed/maix/Kconfig               |  49 +++
 board/sipeed/maix/MAINTAINERS           |  13 +
 board/sipeed/maix/Makefile              |   5 +
 board/sipeed/maix/maix.c                |   9 +
 configs/sipeed_maix_bitm_config         | 139 ++++++++
 drivers/clk/Kconfig                     |   1 +
 drivers/clk/Makefile                    |   1 +
 drivers/clk/clk-composite.c             |  65 ++--
 drivers/clk/clk-divider.c               |   6 +-
 drivers/clk/clk-fixed-factor.c          |   3 +-
 drivers/clk/clk-gate.c                  |   6 +-
 drivers/clk/clk-mux.c                   |  12 +-
 drivers/clk/imx/clk-gate2.c             |   4 +-
 drivers/clk/kendryte/Kconfig            |   7 +
 drivers/clk/kendryte/Makefile           |   1 +
 drivers/clk/kendryte/clk.c              | 391 ++++++++++++++++++++
 drivers/clk/kendryte/clk.h              |  27 ++
 drivers/clk/kendryte/pll.c              | 455 ++++++++++++++++++++++++
 drivers/clk/kendryte/pll.h              |  38 ++
 drivers/serial/serial_sifive.c          |   1 +
 include/configs/sipeed-maix.h           |  19 +
 include/dt-bindings/clock/k210-sysctl.h |  54 +++
 include/dt-bindings/reset/k210-sysctl.h |  39 ++
 32 files changed, 1887 insertions(+), 42 deletions(-)
 create mode 100644 arch/riscv/dts/k210-maix-bit.dts
 create mode 100644 arch/riscv/dts/k210.dtsi
 create mode 100644 arch/riscv/include/asm/k210_sysctl.h
 create mode 100644 arch/riscv/lib/k210_sysctl.c
 create mode 100644 board/sipeed/maix/Kconfig
 create mode 100644 board/sipeed/maix/MAINTAINERS
 create mode 100644 board/sipeed/maix/Makefile
 create mode 100644 board/sipeed/maix/maix.c
 create mode 100644 configs/sipeed_maix_bitm_config
 create mode 100644 drivers/clk/kendryte/Kconfig
 create mode 100644 drivers/clk/kendryte/Makefile
 create mode 100644 drivers/clk/kendryte/clk.c
 create mode 100644 drivers/clk/kendryte/clk.h
 create mode 100644 drivers/clk/kendryte/pll.c
 create mode 100644 drivers/clk/kendryte/pll.h
 create mode 100644 include/configs/sipeed-maix.h
 create mode 100644 include/dt-bindings/clock/k210-sysctl.h
 create mode 100644 include/dt-bindings/reset/k210-sysctl.h

-- 
2.24.1