On 09/30/2014 07:41 PM, Stephen Warren wrote:
On 09/22/2014 05:30 PM, Simon Glass wrote:
This series adds driver model support to the GPIO and serial drivers used by Raspberry Pi, and moves Raspberry Pi over to driver model.
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 swarren@wwwdotorg.org
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)