From: Wei Fang <wei.fang@nxp.com>

The PSIPMMR (Port Station Interface Promiscuous MAC Mode Register) in
ENETC v4 has the same bit layout as the PSIPMR register in ENETC v1: bit
n controls unicast promiscuous mode for SI n, and bit (n + 16) controls
multicast promiscuous mode for SI n. The only difference between the two
hardware generations is the register address offset.

Since the register functionality is identical, the MAC promiscuous mode
setting code can be shared between ENETC v1 and v4 drivers.

Rename ENETC_PSIPMR to ENETC_PSIPMMR in enetc_hw.h to match the actual
register name used in the reference manual, and extract two new common
helper functions, enetc_set_si_uc_promisc() and
enetc_set_si_mc_promisc(), into enetc_pf_common.c. These helpers select
the correct register offset based on the hardware revision via
is_enetc_rev1().

Remove the v4-specific enetc4_pf_set_si_mac_promisc() function from
enetc4_pf.c and the duplicate PSIPMMR_SI_MAC_UP/MP macro definitions
from enetc4_hw.h, as they are now superseded by the shared code.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
 .../net/ethernet/freescale/enetc/enetc4_hw.h  |  2 -
 .../net/ethernet/freescale/enetc/enetc4_pf.c  | 21 +--------
 .../ethernet/freescale/enetc/enetc_ethtool.c  |  2 +-
 .../net/ethernet/freescale/enetc/enetc_hw.h   |  7 +--
 .../net/ethernet/freescale/enetc/enetc_pf.c   | 11 ++---
 .../freescale/enetc/enetc_pf_common.c         | 44 +++++++++++++++++++
 .../freescale/enetc/enetc_pf_common.h         |  2 +
 7 files changed, 56 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h
index f18437556a0e..6a8f2ed56017 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h

@@ -69,8 +69,6 @@
 
 /* Port Station interface promiscuous MAC mode register */
 #define ENETC4_PSIPMMR			0x200
-#define  PSIPMMR_SI_MAC_UP(a)		BIT(a) /* a = SI index */
-#define  PSIPMMR_SI_MAC_MP(a)		BIT((a) + 16)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h
index bf99b65d7598..66bfda60da9c 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h

@@ -180,9 +180,10 @@ enum enetc_bdr_type {TX, RX};
 #define ENETC_PMR_PSPEED_1000M	BIT(9)
 #define ENETC_PMR_PSPEED_2500M	BIT(10)
 #define ENETC_PSR		0x0004 /* RO */
-#define ENETC_PSIPMR		0x0018
-#define ENETC_PSIPMR_SET_UP(n)	BIT(n) /* n = SI index */
-#define ENETC_PSIPMR_SET_MP(n)	BIT((n) + 16)
+#define ENETC_PSIPMMR		0x0018
+#define  PSIPMMR_SI_MAC_UP(n)	BIT(n) /* n = SI index */
+#define  PSIPMMR_SI_MAC_MP(n)	BIT((n) + 16)