TD (two dimensions) DMA mode did not work, because the xlen variable
has not been re-initialized before each additional ylen run through
in bcm2835_dma_update(). Fix it.
Signed-off-by: Rene Stange <rsta2@o2online.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
static void bcm2835_dma_update(BCM2835DMAState *s, unsigned c)
{
BCM2835DMAChan *ch = &s->chan[c];
- uint32_t data, xlen, ylen;
+ uint32_t data, xlen, xlen_td, ylen;
int16_t dst_stride, src_stride;
if (!(s->enable & (1 << c))) {
dst_stride = 0;
src_stride = 0;
}
+ xlen_td = xlen;
while (ylen != 0) {
/* Normal transfer mode */
if (--ylen != 0) {
ch->source_ad += src_stride;
ch->dest_ad += dst_stride;
+ xlen = xlen_td;
}
}
ch->cs |= BCM2708_DMA_END;