powerpc/44x/bamboo: Fix PCI range
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 11 Dec 2018 02:27:33 +0000 (13:27 +1100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 5 Dec 2019 14:37:42 +0000 (15:37 +0100)
commit4fc4b8531e870c28d2da90b5ced666456e4cfa38
tree384c26f12aecf3cb1b2173d6d307b1dfde867dd0
parentb862fa12bf28136c8049e1dc0ae629efbfbbb11b
powerpc/44x/bamboo: Fix PCI range

[ Upstream commit 3cfb9ebe906b51f2942b1e251009bb251efd2ba6 ]

The bamboo dts has a bug: it uses a non-naturally aligned range
for PCI memory space. This isnt' supported by the code, thus
causing PCI to break on this system.

This is due to the fact that while the chip memory map has 1G
reserved for PCI memory, it's only 512M aligned. The code doesn't
know how to split that into 2 different PMMs and fails, so limit
the region to 512M.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/powerpc/boot/dts/bamboo.dts