From: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
The data_count variable was being reset on every transfer, including
DMA transfer resumptions. This is incorrect, it should only be set
on a new command.
Manifests as a bug when using ADMA and there is a timer delay between
ADMA frames where the fifo is left in a non empty state.
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
hw/sd/sdhci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 91dc9b0..0a84540 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -260,6 +260,7 @@ static void sdhci_send_command(SDHCIState *s)
sdhci_update_irq(s);
if (s->blksize && (s->cmdreg & SDHC_CMD_DATA_PRESENT)) {
+ s->data_count = 0;
sdhci_do_data_transfer(s);
}
}
@@ -773,7 +774,6 @@ static void sdhci_do_adma(SDHCIState *s)
static void sdhci_data_transfer(SDHCIState *s)
{
SDHCIClass *k = SDHCI_GET_CLASS(s);
- s->data_count = 0;
if (s->trnmod & SDHC_TRNS_DMA) {
switch (SDHC_DMA_TYPE(s->hostctl)) {
--
1.8.3.rc1.44.gb387c77.dirty
