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From: Marek Szyprowski <m.szyprowski@samsung.com>
To: u-boot@lists.denx.de
Subject: [PATCH] board: amlogic: vim3: read ethernet MAC address from efuse
Date: Thu, 17 Dec 2020 08:26:42 +0100	[thread overview]
Message-ID: <20201217072642.1319-1-m.szyprowski@samsung.com> (raw)
In-Reply-To: CGME20201217072655eucas1p123aa0a548e4de21a8ac580dbc990c760@eucas1p1.samsung.com

Add the board specific code for reading built-in ethernet MAC address
from efuse.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 board/amlogic/vim3/vim3.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c
index 09ef39ff30..a36df61583 100644
--- a/board/amlogic/vim3/vim3.c
+++ b/board/amlogic/vim3/vim3.c
@@ -11,6 +11,7 @@
 #include <net.h>
 #include <asm/io.h>
 #include <asm/arch/eth.h>
+#include <asm/arch/sm.h>
 #include <i2c.h>
 #include "khadas-mcu.h"
 
@@ -129,9 +130,27 @@ int meson_ft_board_setup(void *blob, struct bd_info *bd)
 	return 0;
 }
 
+#define EFUSE_MAC_OFFSET	0
+#define EFUSE_MAC_SIZE		6
+
 int misc_init_r(void)
 {
+	uint8_t mac_addr[EFUSE_MAC_SIZE];
+	ssize_t len;
+
 	meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
 
+	if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+					  mac_addr, EFUSE_MAC_SIZE);
+		if (len != EFUSE_MAC_SIZE)
+			return 0;
+
+		if (is_valid_ethaddr(mac_addr))
+			eth_env_set_enetaddr("ethaddr", mac_addr);
+		else
+			meson_generate_serial_ethaddr();
+	}
+
 	return 0;
 }
-- 
2.17.1

WARNING: multiple messages have this Message-ID (diff)
From: Marek Szyprowski <m.szyprowski@samsung.com>
To: u-boot@lists.denx.de, u-boot-amlogic@groups.io
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Jaehoon Chung <jh80.chung@samsung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: [PATCH] board: amlogic: vim3: read ethernet MAC address from efuse
Date: Thu, 17 Dec 2020 08:26:42 +0100	[thread overview]
Message-ID: <20201217072642.1319-1-m.szyprowski@samsung.com> (raw)
In-Reply-To: CGME20201217072655eucas1p123aa0a548e4de21a8ac580dbc990c760@eucas1p1.samsung.com

Add the board specific code for reading built-in ethernet MAC address
from efuse.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 board/amlogic/vim3/vim3.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c
index 09ef39ff30..a36df61583 100644
--- a/board/amlogic/vim3/vim3.c
+++ b/board/amlogic/vim3/vim3.c
@@ -11,6 +11,7 @@
 #include <net.h>
 #include <asm/io.h>
 #include <asm/arch/eth.h>
+#include <asm/arch/sm.h>
 #include <i2c.h>
 #include "khadas-mcu.h"
 
@@ -129,9 +130,27 @@ int meson_ft_board_setup(void *blob, struct bd_info *bd)
 	return 0;
 }
 
+#define EFUSE_MAC_OFFSET	0
+#define EFUSE_MAC_SIZE		6
+
 int misc_init_r(void)
 {
+	uint8_t mac_addr[EFUSE_MAC_SIZE];
+	ssize_t len;
+
 	meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
 
+	if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+					  mac_addr, EFUSE_MAC_SIZE);
+		if (len != EFUSE_MAC_SIZE)
+			return 0;
+
+		if (is_valid_ethaddr(mac_addr))
+			eth_env_set_enetaddr("ethaddr", mac_addr);
+		else
+			meson_generate_serial_ethaddr();
+	}
+
 	return 0;
 }
-- 
2.17.1


       reply	other threads:[~2020-12-17  7:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20201217072655eucas1p123aa0a548e4de21a8ac580dbc990c760@eucas1p1.samsung.com>
2020-12-17  7:26 ` Marek Szyprowski [this message]
2020-12-17  7:26   ` [PATCH] board: amlogic: vim3: read ethernet MAC address from efuse Marek Szyprowski
2020-12-17  8:43   ` Neil Armstrong
2020-12-17  8:43     ` Neil Armstrong
2020-12-17  8:57     ` Jaehoon Chung
2020-12-17  8:57       ` Jaehoon Chung

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