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ARM: mach-u300: Setup consistent dma size at boot time

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Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
This commit is contained in:
Jon Medhurst 2011-08-04 15:41:42 +01:00
parent fd24f90318
commit d70a5969e9
2 changed files with 3 additions and 5 deletions
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3
arch/arm/mach-u300/core.c
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@ -25,6 +25,7 @@
#include <linux/err.h> #include <linux/err.h>
#include <linux/mtd/nand.h> #include <linux/mtd/nand.h>
#include <linux/mtd/fsmc.h> #include <linux/mtd/fsmc.h>
#include <linux/dma-mapping.h>
#include <asm/types.h> #include <asm/types.h>
#include <asm/setup.h> #include <asm/setup.h>
@ -92,6 +93,8 @@ static struct map_desc u300_io_desc[] __initdata = {
void __init u300_map_io(void) void __init u300_map_io(void)
{ {
iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc)); iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc));
/* We enable a real big DMA buffer if need be. */
init_consistent_dma_size(SZ_4M);
} }
/* /*

5
arch/arm/mach-u300/include/mach/memory.h
View file

@ -34,9 +34,4 @@
(CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100) (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100)
#endif #endif
/*
* We enable a real big DMA buffer if need be.
*/
#define CONSISTENT_DMA_SIZE SZ_4M
#endif #endif