diff options
Diffstat (limited to 'arch/m68k/apollo')
-rw-r--r-- | arch/m68k/apollo/dma.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/arch/m68k/apollo/dma.c b/arch/m68k/apollo/dma.c deleted file mode 100644 index aed8be177ef1..000000000000 --- a/arch/m68k/apollo/dma.c +++ /dev/null | |||
@@ -1,50 +0,0 @@ | |||
1 | #include <linux/types.h> | ||
2 | #include <linux/kernel.h> | ||
3 | #include <linux/mm.h> | ||
4 | #include <linux/kd.h> | ||
5 | #include <linux/tty.h> | ||
6 | #include <linux/console.h> | ||
7 | |||
8 | #include <asm/setup.h> | ||
9 | #include <asm/bootinfo.h> | ||
10 | #include <asm/system.h> | ||
11 | #include <asm/pgtable.h> | ||
12 | #include <asm/apollodma.h> | ||
13 | #include <asm/io.h> | ||
14 | |||
15 | /* note only works for 16 Bit 1 page DMA's */ | ||
16 | |||
17 | static unsigned short next_free_xlat_entry=0; | ||
18 | |||
19 | unsigned short dma_map_page(unsigned long phys_addr,int count,int type) { | ||
20 | |||
21 | unsigned long page_aligned_addr=phys_addr & (~((1<<12)-1)); | ||
22 | unsigned short start_map_addr=page_aligned_addr >> 10; | ||
23 | unsigned short free_xlat_entry, *xlat_map_entry; | ||
24 | int i; | ||
25 | |||
26 | free_xlat_entry=next_free_xlat_entry; | ||
27 | for(i=0,xlat_map_entry=addr_xlat_map+(free_xlat_entry<<2);i<8;i++,xlat_map_entry++) { | ||
28 | #if 0 | ||
29 | printk("phys_addr: %x, page_aligned_addr: %x, start_map_addr: %x\n",phys_addr,page_aligned_addr,start_map_addr+i); | ||
30 | #endif | ||
31 | out_be16(xlat_map_entry, start_map_addr+i); | ||
32 | } | ||
33 | |||
34 | next_free_xlat_entry+=2; | ||
35 | if(next_free_xlat_entry>125) | ||
36 | next_free_xlat_entry=0; | ||
37 | |||
38 | #if 0 | ||
39 | printk("next_free_xlat_entry: %d\n",next_free_xlat_entry); | ||
40 | #endif | ||
41 | |||
42 | return free_xlat_entry<<10; | ||
43 | } | ||
44 | |||
45 | void dma_unmap_page(unsigned short dma_addr) { | ||
46 | |||
47 | return ; | ||
48 | |||
49 | } | ||
50 | |||