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@38000000 Out: serial@38000000 Err: serial@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