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removed mmu.c

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modified dma routines
This commit is contained in:
Markus Fröschle
2013-08-05 15:15:58 +00:00
parent e000afc5b5
commit 2086a9b686
4 changed files with 39 additions and 107 deletions
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11
BaS_gcc/sources/dma.c
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@@ -16,6 +16,7 @@ extern char _SYS_SRAM[];
void *dma_memcpy(void *dst, void *src, size_t n)
{
int ret;
int speed;
int32_t start = MCF_SLT_SCNT(0);
int32_t end;
@@ -65,7 +66,9 @@ void *dma_memcpy(void *dst, void *src, size_t n)
end = MCF_SLT_SCNT(0);
xprintf("took %d ms (1 Mbyte)\r\n", (start - end) / 132 / 1000);
speed = n / (start - end) / 132 / 100;
xprintf("took %d ms (%d.%d Mbytes/second)\r\n",
(start - end) / 132 / 1000, speed / 10, speed % 10);
#ifdef _NOT_USED_
__asm__ __volatile__("move.w sr,d0\n\t"
"stop #0x270\n\t"
@@ -75,10 +78,11 @@ void *dma_memcpy(void *dst, void *src, size_t n)
return dst;
}
int spidma_init(void)
int dma_init(void)
{
int res;
xprintf("MCD DMA API initialization: ");
res = MCD_initDma((dmaRegs *) &MCF_DMA_TASKBAR, SYS_SRAM, MCD_RELOC_TASKS | MCD_COMM_PREFETCH_EN);
if (res != MCD_OK)
{
@@ -88,7 +92,8 @@ int spidma_init(void)
xprintf("DMA API initialized. Tasks are at %p\r\n", SYS_SRAM);
// test
dma_memcpy((void *) 0x1e000000, (void *) 0xe0700000, 0x100000);
dma_memcpy((void *) 0x1e000000, (void *) 0xe0700000, 0x100000); /* copy one megabyte of flash to RAM */
xprintf("DMA finished\r\n");
return 1;
}