[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>
diff --git a/arch/arm/plat-orion/pcie.c b/arch/arm/plat-orion/pcie.c
index d41d41d..54c84a4 100644
--- a/arch/arm/plat-orion/pcie.c
+++ b/arch/arm/plat-orion/pcie.c
@@ -133,6 +133,12 @@
}
/*
+ * 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.
*/
writel(dram->cs[0].base, base + PCIE_BAR_LO_OFF(1));