Hi Mark, On Sat, 18 Sept 2021 at 07:54, Mark Kettenis <kette...@openbsd.org> wrote: > > This series adds basic support for Apple's M1 SoC to U-Boot. > This builds a basic U-Boot that can be used as a payload > for the m1n1 boot loader being developed by the Asahi Linux > project. > > The goal here is to privide an UEFI interface on these machines that
provide > allows booting various open source OSes. This initial series provides > support for the serial port, framebuffer and the USB 3.1 Type-C ports. > It can boot a support OS (e.g. OpenBSD/arm64) from a USB disk. > > Mark Kettenis (5): > arm: apple: Add initial support for Apple's M1 SoC > serial: s5p: Add Apple M1 support > misc: Add Apple DART driver > arm: dts: apple: Add preliminary device trees > doc: board: apple: Add Apple M1 documentation > > arch/arm/Kconfig | 22 + > arch/arm/Makefile | 1 + > arch/arm/dts/t8103-j274.dts | 135 +++++ > arch/arm/dts/t8103-j293.dts | 97 ++++ > arch/arm/dts/t8103.dtsi | 506 ++++++++++++++++++ > arch/arm/include/asm/arch-m1/clk.h | 11 + > arch/arm/include/asm/arch-m1/uart.h | 41 ++ > arch/arm/mach-apple/Kconfig | 18 + > arch/arm/mach-apple/Makefile | 4 + > arch/arm/mach-apple/board.c | 163 ++++++ > arch/arm/mach-apple/lowlevel_init.S | 16 + > configs/apple_m1_defconfig | 14 + > doc/board/apple/index.rst | 9 + > doc/board/apple/m1.rst | 54 ++ > doc/board/index.rst | 1 + > drivers/misc/Kconfig | 7 + > drivers/misc/Makefile | 1 + > drivers/misc/apple_dart.c | 171 ++++++ > drivers/serial/Kconfig | 2 +- > drivers/serial/serial_s5p.c | 22 + > include/configs/apple.h | 38 ++ > .../interrupt-controller/apple-aic.h | 15 + > include/dt-bindings/pinctrl/apple.h | 13 + > include/dt-bindings/spmi/spmi.h | 10 + > 24 files changed, 1370 insertions(+), 1 deletion(-) > create mode 100644 arch/arm/dts/t8103-j274.dts > create mode 100644 arch/arm/dts/t8103-j293.dts > create mode 100644 arch/arm/dts/t8103.dtsi > create mode 100644 arch/arm/include/asm/arch-m1/clk.h > create mode 100644 arch/arm/include/asm/arch-m1/uart.h > create mode 100644 arch/arm/mach-apple/Kconfig > create mode 100644 arch/arm/mach-apple/Makefile > create mode 100644 arch/arm/mach-apple/board.c > create mode 100644 arch/arm/mach-apple/lowlevel_init.S > create mode 100644 configs/apple_m1_defconfig > create mode 100644 doc/board/apple/index.rst > create mode 100644 doc/board/apple/m1.rst > create mode 100644 drivers/misc/apple_dart.c > create mode 100644 include/configs/apple.h > create mode 100644 include/dt-bindings/interrupt-controller/apple-aic.h > create mode 100644 include/dt-bindings/pinctrl/apple.h > create mode 100644 include/dt-bindings/spmi/spmi.h > > -- > 2.33.0 > I gave this a whirl on a Macbook Air A2337 and needed the patch below to build the devicetree files. Sorry the formatting is broken. Also when booting I get this: ... Preparing to boot kernel at 0x808200000 with fdt at 0x8082e8000 Valid payload found Preparing to run next stage at 0x808200000... MMU: shutting down... MMU: shutdown successful, clearing caches Then the display clears and it hangs. If I try the J274 devicetree it just reboots at that point. What should I expect? I was hoping for console output as I don't have serial connected. I don't have a suitable serial cable, and the USB gadget mode did not result in a ttyACM0 device appearing. Regards, Simon Subject: [PATCH] Fix up devicetree Get these building. Signed-off-by: Simon Glass <s...@chromium.org> --- arch/arm/dts/Makefile | 2 ++ configs/apple_m1_defconfig | 11 +++++------ 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index fc16a57e60b..0c40947cc33 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1130,6 +1130,8 @@ dtb-$(CONFIG_TARGET_IMX8MM_CL_IOT_GATE) += imx8mm-cl-iot-gate.dtb dtb-$(CONFIG_TARGET_EA_LPC3250DEVKITV2) += lpc3250-ea3250.dtb +dtb-$(CONFIG_ARCH_APPLE) += t8103-j274.dtb t8103-j293.dtb + targets += $(dtb-y) # Add any required device tree compiler flags here diff --git a/configs/apple_m1_defconfig b/configs/apple_m1_defconfig index a7ae15576bf..7712a0bac52 100644 --- a/configs/apple_m1_defconfig +++ b/configs/apple_m1_defconfig @@ -1,14 +1,13 @@ CONFIG_ARM=y CONFIG_ARCH_APPLE=y +CONFIG_DEFAULT_DEVICE_TREE="t8103-j293" +CONFIG_USE_PREBOOT=y # CONFIG_DISPLAY_CPUINFO is not set -# CONFIG_MMC is not set -# CONFIG_NET is not set -CONFIG_VIDEO_SIMPLE=y CONFIG_DISPLAY_BOARDINFO_LATE=y +# CONFIG_NET is not set +# CONFIG_MMC is not set CONFIG_USB_XHCI_HCD=y CONFIG_USB_XHCI_DWC3=y CONFIG_USB_KEYBOARD=y -CONFIG_USB_STORAGE=y -CONFIG_USE_PREBOOT=y -CONFIG_PREBOOT="usb start" +CONFIG_VIDEO_SIMPLE=y # CONFIG_GENERATE_SMBIOS_TABLE is not set -- 2.25.1
