In case fastboot over Ethernet, am65_cpsw_stop() is not called unless
DM_FLAG_OS_PREPARE is set. Without call to am65_cpsw_stop(), DMA
resources are not released thus leading to failures in kernel.
Fix this by adding DM_FLAG_OS_PREPARE flag to am65_cpsw_nuss_port
driver.

Reported-by: Christian Gmeiner <christian.gmei...@gmail.com>
Signed-off-by: Vignesh Raghavendra <vigne...@ti.com>
---
 drivers/net/ti/am65-cpsw-nuss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ti/am65-cpsw-nuss.c b/drivers/net/ti/am65-cpsw-nuss.c
index 454986ff15..87f51b3b99 100644
--- a/drivers/net/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ti/am65-cpsw-nuss.c
@@ -817,5 +817,5 @@ U_BOOT_DRIVER(am65_cpsw_nuss_port) = {
        .ops    = &am65_cpsw_ops,
        .priv_auto      = sizeof(struct am65_cpsw_priv),
        .plat_auto      = sizeof(struct eth_pdata),
-       .flags = DM_FLAG_ALLOC_PRIV_DMA,
+       .flags = DM_FLAG_ALLOC_PRIV_DMA | DM_FLAG_OS_PREPARE,
 };
-- 
2.35.0

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