aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch')
-rw-r--r--target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch27
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch b/target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch
new file mode 100644
index 0000000000..8d2b4c7a73
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.27/400-dmabounce.patch
@@ -0,0 +1,27 @@
+--- a/arch/arm/common/dmabounce.c
++++ b/arch/arm/common/dmabounce.c
+@@ -117,6 +117,10 @@
+ } else if (size <= device_info->large.size) {
+ pool = &device_info->large;
+ } else {
++#ifdef CONFIG_DMABOUNCE_DEBUG
++ printk(KERN_INFO "A dma bounce buffer outside the pool size was requested. Requested size was 0x%08X\nThe calling code was :\n", size);
++ dump_stack();
++#endif
+ pool = NULL;
+ }
+
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -244,6 +244,11 @@
+ default y
+ depends on PCI
+
++config DMABOUNCE_DEBUG
++ bool "Enable DMABounce debuging"
++ default n
++ depends on DMABOUNCE
++
+ config IXP4XX_INDIRECT_PCI
+ bool "Use indirect PCI memory access"
+ depends on PCI