Commit 7788cd55 authored Dec 23, 2009 by Lennert Buytenhek Committed by Nicolas Pitre Dec 28, 2009

[ARM] Orion: fix PCIe inbound window programming when RAM size is not a power of two



The PCIe inbound window size is supposed to be a power of two.  If
the total amount of RAM installed in the system is not a power of two,
round it up such that it is.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

parent 6b7b2849

arch/arm/plat-orion/pcie.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -132,6 +132,12 @@ static void __init orion_pcie_setup_wins(void __iomem *base,
		size += cs->size;
		}

		/*
		* Round up 'size' to the nearest power of two.
		*/
		if ((size & (size - 1)) != 0)
		size = 1 << fls(size);

		/*
		* Setup BAR[1] to all DRAM banks.
		*/