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 <thar...@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(-)
Index: trunk/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
===================================================================
--- trunk/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
(revision 33603)
+++ trunk/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch
(working copy)
@@ -65,12 +65,11 @@
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) 2012 Gateworks Corporation
++ * Chris Lang <cl...@gateworks.com>
+ *
-+ * Copyright (C) 1995, 1996 Russell King
-+ *
+ * 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
+ * published by the Free Software Foundation.
@@ -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.
*/
Index: trunk/target/linux/cns3xxx/config-3.3
===================================================================
--- trunk/target/linux/cns3xxx/config-3.3 (revision 33603)
+++ trunk/target/linux/cns3xxx/config-3.3 (working copy)
@@ -45,7 +45,7 @@
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
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