On Wed, Oct 10, 2018 at 6:48 AM Cédric Le Goater clg@kaod.org wrote:
Signed-off-by: Cédric Le Goater clg@kaod.org
drivers/net/ftgmac100.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/net/ftgmac100.c b/drivers/net/ftgmac100.c index b46187b567c6..edf34c601c68 100644 --- a/drivers/net/ftgmac100.c +++ b/drivers/net/ftgmac100.c @@ -28,6 +28,9 @@ /* PKTBUFSTX/PKTBUFSRX must both be power of 2 */ #define PKTBUFSTX 4 /* must be power of 2 */
+/* Timeout for transmit */ +#define FTGMAC100_TX_TIMEOUT_MS 1000
/* Timeout for a mdio read/write operation */ #define FTGMAC100_MDIO_TIMEOUT_USEC 10000
@@ -412,6 +415,7 @@ static int ftgmac100_send(struct udevice *dev, void *packet, int length) roundup(sizeof(*curr_des), ARCH_DMA_MINALIGN); ulong data_start; ulong data_end;
ulong start; invalidate_dcache_range(des_start, des_end);@@ -444,6 +448,20 @@ static int ftgmac100_send(struct udevice *dev, void *packet, int length) /* Start transmit */ writel(1, &ftgmac100->txpd);
/* Wait until packet is transmitted */start = get_timer(0);while (get_timer(start) < FTGMAC100_TX_TIMEOUT_MS) {
In general we prefer to use wait_bit.h for such things. Probably just define a BUILD_WAIT_FOR_BIT() in your .c to handle your memory access.
invalidate_dcache_range(des_start, des_end);if (!(curr_des->txdes0 & FTGMAC100_TXDES0_TXDMA_OWN))break;udelay(10);}if (get_timer(start) >= FTGMAC100_TX_TIMEOUT_MS) {dev_err(dev, "transmit timeout\n");return -ETIMEDOUT;}debug("%s(): packet sent\n", __func__); /* Move to next descriptor */-- 2.17.1
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