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authorCatalin Marinas <catalin.marinas@arm.com>2008-11-10 14:10:14 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2008-11-10 14:10:14 +0000
commit877d1f338912c1bf49a026eeca1d411755efece5 (patch)
tree7b1bc19f52cb0a68386d3877eaa4cc46ed76a5b9 /arch/arm/mach-realview
parent2c0aec814d259e35366a0a22747f8c9d5e39ee9c (diff)
downloadlinux-linaro-stable-877d1f338912c1bf49a026eeca1d411755efece5.tar.gz
RealView: Make more vmalloc space by changing IO_ADDRESS
Since boards like PB11MPCore have 512MB of RAM and 128MB of flash, the virtual space is short on vmalloc memory and mapping the flash fails. This patch changes the IO_ADDRESS so that static mappings start at 0xfc000000 and moves the PCI virtual addresses higher up. The new VMALLOC_END is set to 0xf8000000 (512MB higher than the old value). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/mach-realview')
-rw-r--r--arch/arm/mach-realview/include/mach/debug-macro.S2
-rw-r--r--arch/arm/mach-realview/include/mach/hardware.h9
-rw-r--r--arch/arm/mach-realview/include/mach/vmalloc.h2
3 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm/mach-realview/include/mach/debug-macro.S b/arch/arm/mach-realview/include/mach/debug-macro.S
index d0076ca588a6..f072d88f1e96 100644
--- a/arch/arm/mach-realview/include/mach/debug-macro.S
+++ b/arch/arm/mach-realview/include/mach/debug-macro.S
@@ -35,7 +35,7 @@
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
moveq \rx, #0x10000000
- movne \rx, #0xf0000000 @ virtual base
+ movne \rx, #0xfb000000 @ virtual base
orr \rx, \rx, #DEBUG_LL_UART_OFFSET
.endm
diff --git a/arch/arm/mach-realview/include/mach/hardware.h b/arch/arm/mach-realview/include/mach/hardware.h
index 79a93b3dfca9..b42c14f89acb 100644
--- a/arch/arm/mach-realview/include/mach/hardware.h
+++ b/arch/arm/mach-realview/include/mach/hardware.h
@@ -25,7 +25,14 @@
#include <asm/sizes.h>
/* macro to get at IO space when running virtually */
-#define IO_ADDRESS(x) (((x) & 0x0fffffff) + 0xf0000000)
+/*
+ * Statically mapped addresses:
+ *
+ * 10xx xxxx -> fbxx xxxx
+ * 1exx xxxx -> fdxx xxxx
+ * 1fxx xxxx -> fexx xxxx
+ */
+#define IO_ADDRESS(x) (((x) & 0x03ffffff) + 0xfb000000)
#define __io_address(n) __io(IO_ADDRESS(n))
#endif
diff --git a/arch/arm/mach-realview/include/mach/vmalloc.h b/arch/arm/mach-realview/include/mach/vmalloc.h
index 48cbcc873db2..fe0de1b507ac 100644
--- a/arch/arm/mach-realview/include/mach/vmalloc.h
+++ b/arch/arm/mach-realview/include/mach/vmalloc.h
@@ -18,4 +18,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x18000000)
+#define VMALLOC_END 0xf8000000