On 09/26/2012 06:20 AM, Philippe De Muyter wrote:
Hello Stany
[CCing uclinux-dev]
On Tue, Sep 25, 2012 at 06:07:45PM +0200, Stany MARCEL wrote:
Hello Philippe,
I have to do the following modification to compile your drivers with MMU
enabled :
diff --git a/drivers/net/ethernet/freescale/fec_m54xx.c
b/drivers/net/ethernet/freescale/fec_m54xx.c
index 4204a14..f6cafc6 100644
--- a/drivers/net/ethernet/freescale/fec_m54xx.c
+++ b/drivers/net/ethernet/freescale/fec_m54xx.c
@@ -41,6 +41,10 @@
*/
#define flush_and_invalidate_dcache() flush_cache_all()
+#ifdef CONFIG_MMU
+#define flush_dcache_range(A, L) flush_cf_dcache(A, L)
Drivers shouldn't be calling these architecture flush functions at all.
They must use the DMA API and the functions it defines. See
Documentation/DMA-API.txt
For example look at the use of dma_map_single()/dma_unmap_single()
in drivers/net/ethernet/freescale/fec.c. (Ignore the almost certainly
bogus cache_flush_all() for CONFIG_M532x).
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: g...@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close, FAX: +61 7 3891 3630
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com
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