[U-Boot] [PATCH 03/17] GRETH: Added extra RESET, this is needed if GRETH was stopped during an ethernet frame reception.

[Daniel Hellstrom]

Signed-off-by: Daniel Hellstrom <daniel at gaisler.com>
---
 drivers/net/greth.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/greth.c b/drivers/net/greth.c
index a1a88f9..143c773 100644
--- a/drivers/net/greth.c
+++ b/drivers/net/greth.c
@@ -146,13 +146,23 @@ int greth_init(struct eth_device *dev, bd_t * bis)
 	printf("greth_init\n");
 #endif
 
+	/* Reset core */
+	GRETH_REGSAVE(&regs->control, (GRETH_RESET | (greth->gb << 8) |
+		(greth->sp << 7) | (greth->fd << 4)));
+
+	/* Wait for Reset to complete */
+	while ( GRETH_REGLOAD(&regs->control) & GRETH_RESET) ;
+
+	GRETH_REGSAVE(&regs->control,
+		((greth->gb << 8) | (greth->sp << 7) | (greth->fd << 4)));
+
 	if (!greth->rxbd_base) {
 
 		/* allocate descriptors */
 		greth->rxbd_base = (greth_bd *)
 		    memalign(0x1000, GRETH_RXBD_CNT * sizeof(greth_bd));
 		greth->txbd_base = (greth_bd *)
-		    memalign(0x1000, GRETH_RXBD_CNT * sizeof(greth_bd));
+		    memalign(0x1000, GRETH_TXBD_CNT * sizeof(greth_bd));
 
 		/* allocate buffers to all descriptors  */
 		greth->rxbuf_base =
@@ -185,7 +195,7 @@ int greth_init(struct eth_device *dev, bd_t * bis)
 	for (i = 0; i < GRETH_TXBD_CNT; i++) {
 		greth->txbd_base[i].addr = 0;
 		/* enable desciptor & set wrap bit if last descriptor */
-		if (i >= (GRETH_RXBD_CNT - 1)) {
+		if (i >= (GRETH_TXBD_CNT - 1)) {
 			greth->txbd_base[i].stat = GRETH_BD_WR;
 		} else {
 			greth->txbd_base[i].stat = 0;
-- 
1.5.4