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tegra: Implement gpio_early_init() on Tamonten
authorThierry Reding <thierry.reding@avionic-design.de>
Mon, 4 Jun 2012 20:02:28 +0000 (20:02 +0000)
committerAlbert ARIBAUD (U-Boot) <uboot@lilith.(none)>
Mon, 9 Jul 2012 20:44:32 +0000 (22:44 +0200)
commit22d58506f5d04918d2bde62c5fe71abee24e4ea8
tree97759cc2f041f0c60410fc369cef862c7aa5ba70tree | snapshot
parentcb7a1cf36a59772670adcd2c90cee40c2ed1bc60commit | diff
tegra: Implement gpio_early_init() on Tamonten

The PI4 GPIO is used on Tamonten to reset carrier board peripherals.
Power sequencing hardware on the carrier pulls the reset low before
powering up the Tegra, and the CPU is supposed to signal readiness,
and therefore bring peripherals out of reset by pulling PI4 high.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
board/avionic-design/common/tamonten.c diff | blob | history
UBoot for KaRo TX COM modules