Commit 4fc338e3 authored May 23, 2008 by Lennert Buytenhek Committed by Lennert Buytenhek Jun 22, 2008

[ARM] Orion: DRAM mapping granularity is 64KiB, not 16MiB



The DRAM base address and size fields in the CPU's MBUS bridge have
64KiB granularity, instead of the currently used 16MiB.  Since all
of the currently supported MBUS peripherals support 64KiB granularity
as well, this patch changes the Orion address map code to stop
rounding base addresses down and sizes up to multiples of 16MiB.

Found by Ke Wei <kewei@marvell.com>.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <linux@arm.linux.org.uk>

parent a18b6584

arch/arm/mach-orion5x/addr-map.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -155,8 +155,8 @@ void __init orion5x_setup_cpu_mbus_bridge(void)
		w = &orion5x_mbus_dram_info.cs[cs++];
		w->cs_index = i;
		w->mbus_attr = 0xf & ~(1 << i);
		w->base = base & 0xff000000;
		w->size = (size \| 0x00ffffff) + 1;
		w->base = base & 0xffff0000;
		w->size = (size \| 0x0000ffff) + 1;
		}
		}
		orion5x_mbus_dram_info.num_cs = cs;