static int ti_edma3_transfer(struct udevice *dev, int direction, void *dst,
void *src, size_t len)
{
struct ti_edma3_priv *priv = dev_get_priv(dev);
/* enable edma3 clocks */
enable_edma3_clocks();
switch (direction) {
case DMA_MEM_TO_MEM:
__edma3_transfer(priv->base, 1, dst, src, len);
break;
default:
error("Transfer type not implemented in DMA driver\n");
break;
}
/* disable edma3 clocks */
disable_edma3_clocks();
return 0;
}
/* TODO: control from sf layer to here through dm-spi */
static void ti_qspi_copy_mmap(void *data, void *offset, size_t len)
{
#if defined(CONFIG_TI_EDMA3) && !defined(CONFIG_DMA)
unsigned int addr = (unsigned int) (data);
unsigned int edma_slot_num = 1;
/* Invalidate the area, so no writeback into the RAM races with DMA */
invalidate_dcache_range(addr, addr + roundup(len, ARCH_DMA_MINALIGN));
/* enable edma3 clocks */
enable_edma3_clocks();
/* Call edma3 api to do actual DMA transfer */
edma3_transfer(EDMA3_BASE, edma_slot_num, data, offset, len);
/* disable edma3 clocks */
disable_edma3_clocks();
#else
memcpy_fromio(data, offset, len);
#endif
*((unsigned int *)offset) += len;
}