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authorFelix Fietkau <nbd@openwrt.org>2012-10-17 22:03:37 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-10-17 22:03:37 +0000
commit879b7a7a9b1c99920a8a5c1f5329e060b564aca6 (patch)
tree44cc30b4ad2763e506eee2fb96e02666a6992aa6 /target/linux/cns3xxx
parentc2b8d1a6190e02e48a55d852ca7ab5ed1a9cd3ac (diff)
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cns3xxx: update FIQ header file and disable RWFO
Update header file appropriately and disable read for ownership Note that the FIQ support implements a workaround that provides a performance boost over the traditional upstream workaround which ensures cache lines are exclusive on driver CPU using 'read for ownership'. Signed-off-by: Tim Harvey <tharvey@gateworks.com> target/linux/cns3xxx/config-3.3 | 2 +- target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch | 9 ++++----- 2 files changed, 5 insertions(+), 6 deletions(-) SVN-Revision: 33827
Diffstat (limited to 'target/linux/cns3xxx')
-rw-r--r--target/linux/cns3xxx/config-3.32
-rw-r--r--target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch9
2 files changed, 5 insertions, 6 deletions
diff --git a/target/linux/cns3xxx/config-3.3 b/target/linux/cns3xxx/config-3.3
index 82f763518e..e1c73a10af 100644
--- a/target/linux/cns3xxx/config-3.3
+++ b/target/linux/cns3xxx/config-3.3
@@ -45,7 +45,7 @@ CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_UART_NONE=y
# CONFIG_DEBUG_USER is not set
CONFIG_DECOMPRESS_LZMA=y
-CONFIG_DMA_CACHE_RWFO=y
+# CONFIG_DMA_CACHE_RWFO is not set
# CONFIG_DWC_DEBUG is not set
# CONFIG_DWC_DEVICE_ONLY is not set
# CONFIG_DWC_HOST_ONLY is not set
diff --git a/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch b/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
index 5b1cd7cd96..7a44b45bfd 100644
--- a/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
+++ b/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
@@ -65,11 +65,10 @@
obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o
--- /dev/null
+++ b/arch/arm/mach-cns3xxx/cns3xxx_fiq.S
-@@ -0,0 +1,97 @@
+@@ -0,0 +1,96 @@
+/*
-+ * linux/arch/arm/lib/floppydma.S
-+ *
-+ * Copyright (C) 1995, 1996 Russell King
++ * Copyright (C) 2012 Gateworks Corporation
++ * Chris Lang <clang@gateworks.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
@@ -298,7 +297,7 @@
+ cpu_cache.dma_map_area = (void *)smp_dma_map_area;
+ cpu_cache.dma_unmap_area = (void *)smp_dma_unmap_area;
+ cpu_cache.dma_flush_range = (void *)smp_dma_flush_range;
-+
++
+ /*
* Synchronise with the boot thread.
*/