commit 6994f3a4ad499a216e0fdf9eab35f577f2291226
author Camelia Groza <camelia.groza@nxp.com> Tue Apr 13 19:47:57 2021 +0300
committer Priyanka Jain <priyanka.jain@nxp.com> Thu Apr 15 14:26:21 2021 +0530
tree 3fe68cbbb5843875aeec5f6a6c6ef6e4f6a43c51
parent 621bd51df87b3b0a78acc01a44db7559f037b99e

board: freescale: t208xrdb: fdt fixups under DM_ETH

Disable the FMan mEMAC 5 and 6 nodes from the fdt since they are not
available under the supported RCW. Also disable the associated
"fsl,dpa-ethernet" nodes that reference them.

This is a simplified version of the fdt_fixup_fman_ethernet call for
use under DM_ETH.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

board/freescale/t208xrdb/eth_t208xrdb.c

diff --git a/board/freescale/t208xrdb/eth_t208xrdb.c b/board/freescale/t208xrdb/eth_t208xrdb.c
index e77f3f7..b0ff4b1 100644
--- a/board/freescale/t208xrdb/eth_t208xrdb.c
+++ b/board/freescale/t208xrdb/eth_t208xrdb.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2021 NXP
  *
  * Shengzhou Liu <Shengzhou.Liu@freescale.com>
  */
@@ -104,6 +105,40 @@
 	return pci_eth_init(bis);
 }
 
+/* Disable the MAC5 and MAC6 "fsl,fman-memac" nodes and the two
+ * "fsl,dpa-ethernet" nodes that reference them.
+ */
+void fdt_fixup_board_fman_ethernet(void *fdt)
+{
+	int mac_off, eth_off, i;
+	char mac_path[2][42] = {
+		"/soc@ffe000000/fman@400000/ethernet@e8000",
+		"/soc@ffe000000/fman@400000/ethernet@ea000",
+	};
+	u32 eth_ph;
+
+	for (i = 0; i < 2; i++) {
+		/* Disable the MAC node */
+		mac_off = fdt_path_offset(fdt, mac_path[i]);
+		if (mac_off < 0)
+			continue;
+		fdt_status_disabled(fdt, mac_off);
+
+		/* Disable the fsl,dpa-ethernet node that points to the MAC.
+		 * The fsl,fman-mac property refers to the MAC's phandle.
+		 */
+		eth_ph = fdt_get_phandle(fdt, mac_off);
+		if (eth_ph <= 0)
+			continue;
+
+		eth_off = fdt_node_offset_by_prop_value(fdt, -1, "fsl,fman-mac",
+							&eth_ph,
+							sizeof(eth_ph));
+		if (eth_off >= 0)
+			fdt_status_disabled(fdt, eth_off);
+	}
+}
+
 void fdt_fixup_board_enet(void *fdt)
 {
 	return;