|
 |
5544c1b |
From f4a5b8185d067430cd605a740af654cd1cd2e2aa Mon Sep 17 00:00:00 2001
|
|
|
5544c1b |
From: Meador Inge <meadori@codesourcery.com>
|
|
|
5544c1b |
Date: Wed, 26 Sep 2012 16:46:28 +0100
|
|
|
5544c1b |
Subject: [PATCH] hw/armv7m_nvic: Correctly register GIC region when setting
|
|
|
5544c1b |
up NVIC
|
|
|
5544c1b |
|
|
|
5544c1b |
When setting up the NVIC memory regions the memory range
|
|
|
5544c1b |
0x100..0xcff is aliased to an IO memory region that belongs
|
|
|
5544c1b |
to the ARM GIC. This aliased region should be added to the
|
|
|
5544c1b |
NVIC memory container, but the actual GIC IO memory region
|
|
|
5544c1b |
was being added instead. This mixup was causing the wrong
|
|
|
5544c1b |
IO memory access functions to be called when accessing parts
|
|
|
5544c1b |
of the NVIC memory.
|
|
|
5544c1b |
|
|
|
5544c1b |
Signed-off-by: Meador Inge <meadori@codesourcery.com>
|
|
|
5544c1b |
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
|
|
|
5544c1b |
(cherry picked from commit 9892cae39562d2e6c00ccc5966302c00f23be6d4)
|
|
|
5544c1b |
|
|
|
5544c1b |
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
|
|
|
5544c1b |
---
|
|
|
5544c1b |
hw/armv7m_nvic.c | 3 ++-
|
|
|
5544c1b |
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
5544c1b |
|
|
|
5544c1b |
diff --git a/hw/armv7m_nvic.c b/hw/armv7m_nvic.c
|
|
|
5544c1b |
index 6a0832e..5c09116 100644
|
|
|
5544c1b |
--- a/hw/armv7m_nvic.c
|
|
|
5544c1b |
+++ b/hw/armv7m_nvic.c
|
|
|
5544c1b |
@@ -489,7 +489,8 @@ static int armv7m_nvic_init(SysBusDevice *dev)
|
|
|
5544c1b |
*/
|
|
|
5544c1b |
memory_region_init_alias(&s->gic_iomem_alias, "nvic-gic", &s->gic.iomem,
|
|
|
5544c1b |
0x100, 0xc00);
|
|
|
5544c1b |
- memory_region_add_subregion_overlap(&s->container, 0x100, &s->gic.iomem, 1);
|
|
|
5544c1b |
+ memory_region_add_subregion_overlap(&s->container, 0x100,
|
|
|
5544c1b |
+ &s->gic_iomem_alias, 1);
|
|
|
5544c1b |
/* Map the whole thing into system memory at the location required
|
|
|
5544c1b |
* by the v7M architecture.
|
|
|
5544c1b |
*/
|
|
|
5544c1b |
--
|
|
|
5544c1b |
1.7.12.1
|
|
|
5544c1b |
|