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web commit by jmcneill: Add a TODO list

    1: [[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]
    2: 
    3: # Supported boards
    4:  - [Banana Pi](http://www.bananapi.org/p/product.html) (BPI)
    5:  - Cubieboard, Cubieboard 2 (CUBIEBOARD)
    6:  - Cubietruck (CUBIETRUCK)
    7:  - [Merrii Hummingbird A31](http://www.merrii.com/en/pla_d.asp?id=172) (HUMMINGBIRD_A31)
    8: 
    9: # Supported hardware
   10:  - SoCs
   11:    - Cortex-A8: A10
   12:    - Cortex-A7: A20, A31
   13:  - SD/MMC controller (DMA)
   14:  - DMA controller
   15:  - GPIO
   16:  - UART
   17:  - I2C
   18:  - P2WI (A31)
   19:  - PMU
   20:    - AXP209 (A20)
   21:    - AXP221 (A31)
   22:  - Watchdog timer
   23:  - RTC
   24:  - Audio codec
   25:  - USB host
   26:    - OHCI
   27:    - EHCI
   28:    - OTG (not yet working on A31)
   29:  - SATA (A10/A20)
   30:  - Gigabit Ethernet (GMAC)
   31: 
   32: # TODO
   33:  - MULTIPROCESSOR is not yet stable
   34:  - HDMI (some work completed here for A20)
   35:  - Framebuffer
   36:  - OTG (A31)
   37:  - USB device mode
   38:  - Bluetooth / WiFi (Cubietruck, Hummingbird A31)
   39:  - 3G (Hummingbird A31)
   40:  - SD/MMC UHS-I support (needs sdmmc(4) changes)
   41: 
   42: # Installation
   43: 
   44: ## A10 / A20 based boards
   45: 
   46: * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beaglebone.img*
   47: * Download a U-Boot build for your board from the linux-sunxi web site <http://dl.linux-sunxi.org/nightly/u-boot-sunxi/u-boot-sunxi/u-boot-sunxi-latest/>
   48: * Write the *u-boot-sunxi-with-spl.bin* loader to the base image:
   49: [[!template  id=programlisting text="""
   50: # dd if=u-boot-sunxi-with-spl.bin of=beaglebone.img bs=1k seek=8 conv=notrunc
   51: """]]
   52: * Write the image to an SD card.
   53: * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition.
   54: * Create or edit uEnv.txt on the MS-DOS partition:
   55: [[!template  id=programlisting text="""
   56: bootargs=root=ld0a
   57: uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
   58: """]]
   59: 
   60: ## A31 based boards
   61: 
   62: TBD.
   63: 
   64: # Big (endian) fun
   65: 
   66: You can run this boards with a little endian (this is the default and implied by above install instructions)
   67: or with a big endian kernel and userland. However, kernel and userland endianness needs to match.
   68: 
   69: To build a big endian release (or sets) use 
   70: [[!template  id=programlisting text="""
   71: ./build.sh -m evbearmv7hf-eb 
   72: """]]
   73: where -eb means endianness big, hf is hardware floating point support, and earm is the modern "extended" ABI for ARM CPUs, and finally v7 is version 7 of the supported instruction set.