Plan 9 from Bell Labs’s /usr/web/sources/contrib/miller/9/bcm/words.pi2
raspberry pi 2 -- differences from raspberry pi broadcom 2836 SoC (based on 2709) 4 x cortex-a7 (v7 arch) 900Mhz cpu, dual-issue, vfpv3+ integral l2 cache 1GB of dram at physical address 0 peripherals at 0x3F000000 gpu/dma space at 0xC0000000
