*/
#define ATC_DEFAULT_CFG (ATC_FIFOCFG_HALFFIFO)
-#define ATC_DEFAULT_CTRLA (0)
#define ATC_DEFAULT_CTRLB (ATC_SIF(AT_DMA_MEM_IF) \
|ATC_DIF(AT_DMA_MEM_IF))
return NULL;
}
- ctrla = ATC_DEFAULT_CTRLA;
ctrlb = ATC_DEFAULT_CTRLB | ATC_IEN
| ATC_SRC_ADDR_MODE_INCR
| ATC_DST_ADDR_MODE_INCR
* of the most common optimization.
*/
if (!((src | dest | len) & 3)) {
- ctrla |= ATC_SRC_WIDTH_WORD | ATC_DST_WIDTH_WORD;
+ ctrla = ATC_SRC_WIDTH_WORD | ATC_DST_WIDTH_WORD;
src_width = dst_width = 2;
} else if (!((src | dest | len) & 1)) {
- ctrla |= ATC_SRC_WIDTH_HALFWORD | ATC_DST_WIDTH_HALFWORD;
+ ctrla = ATC_SRC_WIDTH_HALFWORD | ATC_DST_WIDTH_HALFWORD;
src_width = dst_width = 1;
} else {
- ctrla |= ATC_SRC_WIDTH_BYTE | ATC_DST_WIDTH_BYTE;
+ ctrla = ATC_SRC_WIDTH_BYTE | ATC_DST_WIDTH_BYTE;
src_width = dst_width = 0;
}
return NULL;
}
- ctrla = ATC_DEFAULT_CTRLA | atslave->ctrla;
+ ctrla = atslave->ctrla;
ctrlb = ATC_IEN;
switch (direction) {
u32 ctrla;
/* prepare common CRTLA value */
- ctrla = ATC_DEFAULT_CTRLA | atslave->ctrla
+ ctrla = atslave->ctrla
| ATC_DST_WIDTH(reg_width)
| ATC_SRC_WIDTH(reg_width)
| period_len >> reg_width;