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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v2 5/7] ARM: boards: skov-imx6: fixup different DTS variants
Date: Thu,  9 Sep 2021 14:09:07 +0200	[thread overview]
Message-ID: <20210909120909.7744-5-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20210909120909.7744-1-o.rempel@pengutronix.de>

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 arch/arm/boards/skov-imx6/board.c | 47 +++++++++++++++++++++++++++----
 1 file changed, 42 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boards/skov-imx6/board.c b/arch/arm/boards/skov-imx6/board.c
index c4665c2b45..fea840aa33 100644
--- a/arch/arm/boards/skov-imx6/board.c
+++ b/arch/arm/boards/skov-imx6/board.c
@@ -401,13 +401,50 @@ static void skov_imx6_no_switch(struct device_node *root)
 	}
 }
 
+static int skov_imx6_switch_port(struct device_node *root, const char *path)
+{
+	size_t size;
+	char *buf;
+	int ret;
+
+	size = strlen(path) + 1;
+	buf = xzalloc(size);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = snprintf(buf, size, "%s0", path);
+	if (ret < 0)
+		return ret;
+
+	ret = eth_of_fixup_node_from_eth_device(root, buf, "eth0");
+	if (ret)
+		return ret;
+
+	ret = snprintf(buf, size, "%s1", path);
+	if (ret < 0)
+		return ret;
+
+	ret = eth2_of_fixup_node_individually(root, buf, "eth0",
+					      "state.ethaddr.eth2",
+					      "/state/ethaddr/eth2");
+	return ret;
+}
+
 static void skov_imx6_switch(struct device_node *root)
 {
-	eth_of_fixup_node_from_eth_device(root,
-			"/mdio-gpio/ksz8873@3/ports/ports@0", "eth0");
-	eth2_of_fixup_node_individually(root,
-		"/mdio-gpio/ksz8873@3/ports/ports@1", "eth0",
-		"state.ethaddr.eth2", "/state/ethaddr/eth2");
+	const char *old = "/mdio-gpio/ksz8873@3/ports/ports@";
+	const char *new = "/mdio/switch@0/ports/ports@";
+	int ret;
+
+	/* Old DTS variants (pre kernel mainline) use different path. Try first
+	 * the new variant, then fall back to the old one.
+	 */
+	ret = skov_imx6_switch_port(root, new);
+	if (ret) {
+		ret = skov_imx6_switch_port(root, old);
+		if (ret)
+			pr_err("Filed to set mac address\n");
+	}
 }
 
 static int skov_imx6_fixup(struct device_node *root, void *unused)
-- 
2.30.2


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  parent reply	other threads:[~2021-09-09 13:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-09 12:09 [PATCH v2 1/7] ARM: dts: skov-imx6: add USB nodes Oleksij Rempel
2021-09-09 12:09 ` [PATCH v2 2/7] ARM: boards: skov-imx6: fixup_machine_compatible() add optional root node Oleksij Rempel
2021-09-09 12:09 ` [PATCH v2 3/7] ARM: boards: skov-imx6: add switch detection Oleksij Rempel
2021-09-09 12:09 ` [PATCH v2 4/7] ARM: boards: skov-imx6: disable eth0 for barebox if no switch is detected Oleksij Rempel
2021-09-09 12:09 ` Oleksij Rempel [this message]
2021-09-09 12:09 ` [PATCH v2 6/7] ARM: boards: skov-imx6: start using deep-probe Oleksij Rempel
2021-09-09 12:09 ` [PATCH v2 7/7] ARM: boards: skov-imx6: add defaultenv with eth1-discover script Oleksij Rempel

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