...and I forgot to bump the version.
Sorry, will resend with the proper v10 revision.
On 5/2/20 10:35 PM, Sean Anderson wrote:
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.
The travis build [1] is incomplete as of this writing, but I've manually ran the jobs which failed last time [2], and they passed. As an aside, the travis output is seriously lacking. *Any* warning will cause the build to fail, and *no* output (such as *what warning caused the failure*) is present in the output.
[1] https://travis-ci.org/github/Forty-Bot/u-boot/builds/682474410 [2] https://travis-ci.org/github/Forty-Bot/u-boot/builds/678437924
Known Bugs/Limitations:
- Accessing the AI ram hangs, limiting available ram to 6M
- Trying to boot an image with bootm fails with ERROR: Failed to allocate 0x7d60 bytes below 0x80000000.
To flash u-boot to a maix bit, run kflash -tp /dev/<your tty here> -B bit_mic u-boot-dtb.bin
Boot output should look like the following:
U-Boot 2020.04-rc2-00087-g2221cc09c1-dirty (Feb 28 2020 - 13:53:09 -0500)
DRAM: 8 MiB In: serial@38000000 Out: serial@38000000 Err: serial@38000000 =>
Changes for v10:
- Fix warnings when casting fdt_addr_t
- Fix warnings about const functions
Changes for v9:
- Fix error in Andes PLIC
- Update MAINTAINERS
- Mark dts blocks in documentation as "none" highlighting
Changes for v8:
- Removed dependency on the patch "clk: Add functions to register CCF clock structs". Hopefully this will make reviewing easier.
Changes for v7:
- Split documentation from other board support
- Split IPI clear from other IPI cleanup
- Rebased onto a clean upstream. Hopefully this fixes any patching problems.
Changes for v6:
- Remove spi, pinmux, gpio, led, and wdt support --- to be added in separate patches
- Rebase onto master
- Clear IPIs before enabling them
- Reorganize code so checkpatch errors less
Changes for v5:
- Rebase onto master
- Add pinconf support
- Add gpio support
- Store environment in spi flash
- Group patches by prefix
- Add additional documentation
- Add SMP support
- Add WDT support
Changes for v4:
- Linted several patches
- Updated the copyright year for several files
- Added tests for syscon-reset, simple-pm-bus, and the pll calc_rate function
- Added/updated documentation
- Fixed SPI for the nor flash
- Fixed PLLs not enabling/setting rate properly
- RISCV_PRIV_1_9_1 now (un)defines all diferring CSRs, and also disables VM
- More devicetree changes
Changes for v3:
- Remove patch to set RV64I as default
- Remove patch for a separate sysctl driver
- Split off cpu frequency patch into its own series
- Reorder support/devicetree patches to come last
- Add patch for reset driver
- Add simple-pm-bus for busses with their own clocks
- Add additional documentation
- Reword mcounteren patch to refer to the RISC-V priv spec 1.9.1
- Many devicetree changes
- Switch to "make savedefconfig" to generate the config
Changes for v2:
- Many bugfixes for the device tree
- Modify the config to build without errors
- Add support for keeping internal PLL frequencies in-range
- Fix several rebase-induced artifacts
Sean Anderson (21): clk: Always use the supplied struct clk clk: Check that ops of composite clock components exist before calling clk: Unconditionally recursively en-/dis-able clocks clk: Fix clk_get_by_* handling of index clk: Add K210 pll support clk: Add a bypass clock for K210 clk: Add K210 clock support dm: Add support for simple-pm-bus dm: Fix error handling for dev_read_addr_ptr reset: Add generic reset driver lib: Always set errno in hcreate_r riscv: Add headers for asm/global_data.h riscv: Clear pending interrupts before enabling IPIs riscv: Clean up IPI initialization code riscv: Add option to support RISC-V privileged spec 1.9 riscv: Allow use of reset drivers riscv: Try to get cpu frequency from a "clocks" node if it exists riscv: Enable cpu clock if it is present riscv: Add device tree for K210 and Sipeed Maix BitM doc: riscv: Add documentation for Sipeed Maix Bit riscv: Add Sipeed Maix support
MAINTAINERS | 7 + arch/riscv/Kconfig | 14 + arch/riscv/cpu/cpu.c | 15 + arch/riscv/cpu/start.S | 2 + arch/riscv/dts/Makefile | 1 + arch/riscv/dts/k210-maix-bit.dts | 47 ++ arch/riscv/dts/k210.dtsi | 594 ++++++++++++++++ arch/riscv/include/asm/csr.h | 40 ++ arch/riscv/include/asm/global_data.h | 2 + arch/riscv/include/asm/smp.h | 43 ++ arch/riscv/lib/andes_plic.c | 34 +- arch/riscv/lib/reset.c | 2 + arch/riscv/lib/sbi_ipi.c | 5 + arch/riscv/lib/sifive_clint.c | 33 +- arch/riscv/lib/smp.c | 56 +- arch/sandbox/dts/test.dts | 21 + arch/sandbox/include/asm/clk.h | 1 + board/sipeed/maix/Kconfig | 47 ++ board/sipeed/maix/MAINTAINERS | 11 + board/sipeed/maix/Makefile | 5 + board/sipeed/maix/maix.c | 41 ++ configs/sandbox_defconfig | 3 + configs/sipeed_maix_bitm_defconfig | 8 + doc/board/index.rst | 1 + doc/board/sipeed/index.rst | 9 + doc/board/sipeed/maix.rst | 298 ++++++++ .../bus/simple-pm-bus.txt | 44 ++ .../mfd/kendryte,k210-sysctl.txt | 33 + .../reset/syscon-reset.txt | 36 + doc/imx/clk/ccf.txt | 63 +- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/clk-composite.c | 64 +- 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/clk-uclass.c | 68 +- drivers/clk/imx/clk-gate2.c | 4 +- drivers/clk/imx/clk-imx8mp.c | 2 +- drivers/clk/kendryte/Kconfig | 12 + drivers/clk/kendryte/Makefile | 1 + drivers/clk/kendryte/bypass.c | 270 +++++++ drivers/clk/kendryte/clk.c | 663 ++++++++++++++++++ drivers/clk/kendryte/pll.c | 601 ++++++++++++++++ drivers/core/Kconfig | 7 + drivers/core/Makefile | 1 + drivers/core/read.c | 2 +- drivers/core/simple-pm-bus.c | 56 ++ drivers/cpu/riscv_cpu.c | 39 +- drivers/pinctrl/broadcom/pinctrl-bcm283x.c | 2 +- drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 2 +- drivers/reset/Kconfig | 5 + drivers/reset/Makefile | 1 + drivers/reset/reset-syscon.c | 80 +++ include/configs/sipeed-maix.h | 24 + include/dm/read.h | 4 +- include/dt-bindings/clock/k210-sysctl.h | 59 ++ include/dt-bindings/mfd/k210-sysctl.h | 38 + include/dt-bindings/reset/k210-sysctl.h | 38 + include/kendryte/bypass.h | 31 + include/kendryte/clk.h | 35 + include/kendryte/pll.h | 57 ++ include/test/export.h | 16 + lib/hashtable.c | 8 +- test/dm/Makefile | 3 + test/dm/k210_pll.c | 96 +++ test/dm/simple-pm-bus.c | 45 ++ test/dm/syscon-reset.c | 58 ++ 69 files changed, 3732 insertions(+), 205 deletions(-) create mode 100644 arch/riscv/dts/k210-maix-bit.dts create mode 100644 arch/riscv/dts/k210.dtsi 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_defconfig create mode 100644 doc/board/sipeed/index.rst create mode 100644 doc/board/sipeed/maix.rst create mode 100644 doc/device-tree-bindings/bus/simple-pm-bus.txt create mode 100644 doc/device-tree-bindings/mfd/kendryte,k210-sysctl.txt create mode 100644 doc/device-tree-bindings/reset/syscon-reset.txt create mode 100644 drivers/clk/kendryte/Kconfig create mode 100644 drivers/clk/kendryte/Makefile create mode 100644 drivers/clk/kendryte/bypass.c create mode 100644 drivers/clk/kendryte/clk.c create mode 100644 drivers/clk/kendryte/pll.c create mode 100644 drivers/core/simple-pm-bus.c create mode 100644 drivers/reset/reset-syscon.c create mode 100644 include/configs/sipeed-maix.h create mode 100644 include/dt-bindings/clock/k210-sysctl.h create mode 100644 include/dt-bindings/mfd/k210-sysctl.h create mode 100644 include/dt-bindings/reset/k210-sysctl.h create mode 100644 include/kendryte/bypass.h create mode 100644 include/kendryte/clk.h create mode 100644 include/kendryte/pll.h create mode 100644 include/test/export.h create mode 100644 test/dm/k210_pll.c create mode 100644 test/dm/simple-pm-bus.c create mode 100644 test/dm/syscon-reset.c