From bf0945b5ff2f59e8dd796e47478662d1e406ad19 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20Fr=C3=B6schle?= <mfro@mubf.de>
Date: Tue, 30 Jul 2013 19:19:14 +0000
Subject: [PATCH] memcpy() with Coldfire DMA started

---
 sources/spidma.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sources/spidma.c b/sources/spidma.c
index 1f79f6c..f2eed3f 100644
--- a/sources/spidma.c
+++ b/sources/spidma.c
@@ -7,11 +7,24 @@
 
 #include "spidma.h"
 #include <MCD_dma.h>
+#include "mcd_initiators.h"
 #include "bas_printf.h"
 
 extern char _SYS_SRAM[];
 #define SYS_SRAM &_SYS_SRAM[0]
 
+void *dma_memcpy(void *dst, void *src, size_t n)
+{
+	int ret;
+
+	ret = MCD_startDma(0, src, 1, dst, 1, n, 1, DMA_ALWAYS, 0, MCD_SINGLE_DMA, 0);
+	__asm__ __volatile__("move.w	sr,d0\n\t"
+						 "stop		#0x270\n\t"
+						 "move.w	d0,sr": : :);	/* halt CPU until DMA finished */
+
+	return dst;
+}
+
 int spidma_init(void)
 {
 	int res;