2021-06-17 10:04:55

by Esben Haabendal

Subject: [PATCH 3/6] net: gianfar: Clear CAR registers

The CAR1 and CAR2 registers are W1C style registers, to the memset does not
actually clear them.

Signed-off-by: Esben Haabendal <[email protected]>
---
drivers/net/ethernet/freescale/gianfar.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index a0277fe8cc60..ebd1065f39fa 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -3103,6 +3103,9 @@ static void gfar_hw_init(struct gfar_private *priv)
/* Mask off the CAM interrupts */
gfar_write(&regs->rmon.cam1, 0xffffffff);
gfar_write(&regs->rmon.cam2, 0xffffffff);
+ /* Clear the CAR registers (w1c style) */
+ gfar_write(&regs->rmon.car1, 0xffffffff);
+ gfar_write(&regs->rmon.car2, 0xffffffff);
}

/* Initialize ECNTRL */
--
2.32.0