dm: rpi: Move Raspberry Pi to use driver model
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Cover letter [U-Boot] [PATCH 0/4] dm: rpi: Move Raspberry Pi to use driver model
Quoted 4 lines · Stephen Warren
Quoted 3 lines · Simon Glass
This series adds driver model support to the GPIO and serial drivers used by Raspberry Pi, and moves Raspberry Pi over to driver model.
Quoted 8 lines
Quoted 5 lines
This requires adding driver model support to the pl01x serial driver, and replacing the bcm2835 GPIO driver with a driver model version (since there are no longer clients that don't use driver model).
See u-boot-dm.git branch rpi-working for the tree this is based on.
The series,
Tested-by Stephen Warren <[email protected]>
Hmm. I take that back. Patch 4 causes a problem, at least when applied on top of u-boot/master from today.
Basic serial output works just fine, and I can interact with U-Boot without issue. However, when the boot scripts execute and load an extlinux.conf, U-Boot hangs. Up to patch 3, everything is fine.
U-Boot 2014.10-00004-g7830ed7 (Oct 17 2014 - 20:47:19)
DRAM: 480 MiB WARNING: Caches not enabled MMC: bcm2835_sdhci: 0
Using default environment
In: serial Out: lcd Err: lcd
reading /uEnv.txt
24 bytes read in 14 ms (1000 Bytes/s)
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0...
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf
reading /extlinux/extlinux.conf
(U-Boot hangs here)