On Sat, 18 Aug 2012 19:31:27 BST Richard Miller <[email protected]> wrote: > Progress report on Plan 9 for raspberry pi: > > Driver for sd/mmc card is now up and running, just in time for > Bakul Shah to demonstrate 9pi at the Raspberry Jam today at the > Computer History Museum in Mountain View. I hope he'll post a > report. > > With local fossil on SD card, 9pi can now build its own kernel: > > > 9pi% time mk 'CONF=pif' > > ... > > 24.26u 16.68s 67.86r mk CONF=pif > > This is on Bakul's fast SDHC card. On my crufty old 2GB SD card > it takes 484 seconds. There's scope for more tuning of the driver, > but getting USB working is probably the next priority.
Meant to get this out last night but ran out of idle time. Plan9 on RaspberryPi: + Kernel compiles in a minute (class 4 card, 800Mz cpu). + cd /sys/src && mk all in about 36 minutes. + Serial console + /dev/draw to framebuffer (display on HDMI/TV) **good enough** for native development environment! Much work remains: - USB driver (need that for keyboard, mouse, ethernet). - SHDC performance improvements - Raspi specific drivers (GPIO, SPI etc) - bug fixes - some performance tuning Hopefully there will be more to see at the next meet in a month or so.
