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
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2 changed files with 5 additions and 6 deletions
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@ -45,7 +45,7 @@ CONFIG_DEBUG_LL=y
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CONFIG_DEBUG_LL_UART_NONE=y
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# CONFIG_DEBUG_USER is not set
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CONFIG_DECOMPRESS_LZMA=y
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CONFIG_DMA_CACHE_RWFO=y
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# CONFIG_DMA_CACHE_RWFO is not set
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# CONFIG_DWC_DEBUG is not set
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# CONFIG_DWC_DEVICE_ONLY is not set
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# CONFIG_DWC_HOST_ONLY is not set
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@ -65,11 +65,10 @@
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obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o
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--- /dev/null
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+++ b/arch/arm/mach-cns3xxx/cns3xxx_fiq.S
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@@ -0,0 +1,97 @@
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@@ -0,0 +1,96 @@
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+/*
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+ * linux/arch/arm/lib/floppydma.S
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+ *
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+ * Copyright (C) 1995, 1996 Russell King
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+ * Copyright (C) 2012 Gateworks Corporation
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+ * Chris Lang <clang@gateworks.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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@ -298,7 +297,7 @@
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+ cpu_cache.dma_map_area = (void *)smp_dma_map_area;
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+ cpu_cache.dma_unmap_area = (void *)smp_dma_unmap_area;
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+ cpu_cache.dma_flush_range = (void *)smp_dma_flush_range;
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+
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+
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+ /*
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* Synchronise with the boot thread.
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*/
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