Commit graph

4 commits

Author SHA1 Message Date
Felix Fietkau
4018f15e21 ipq806x: fix PCIe reset gpio handling - the core already handles the active-low flag
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47547
2015-11-21 10:55:29 +00:00
Felix Fietkau
155469b1f9 ipq806x: assert AHB PCIe reset during init
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47546
2015-11-21 10:55:17 +00:00
Felix Fietkau
9c114740ef ipq806x: reduce PCIe buffer size setting to fix potential data corruption issues
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47545
2015-11-21 10:55:05 +00:00
Felix Fietkau
0f7de49fa3 ipq806x: fix freeze in PCIe code when booting with an old u-boot
Old bootloader (same ones which have DT disabled) don't perform any PCIe
initialization. The consequence is a freeze during PCIe bring-up on
these old u-boot. Same kernel with a newer bootloaders works fine as
they contain the corresponding PCIe init code.

In this change, we'll add the missing init and make sure the kernel
doesn't rely on some preexisting init to get PCIe to work. That includes
the following changes:
*GPIOs: set function & drive strength
*Clocks: add init code for aux & ref clocks
*PCIe driver: additional init of the hardware controller

Tested 3.18 and 4.1 on an AP148 with bootloader branch 0.0.1

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 46557
2015-08-04 23:10:03 +00:00