uboot: lx2162: support mac addresses from tlv eeprom

patches/u-boot/0011-board-solidrun-lx2160acex7-allocate-memory-before-pa.patch

@@ -0,0 +1,39 @@
+From bcabe078a2a27eecaa592e1f2ea640a5f1fc6cda Mon Sep 17 00:00:00 2001
+From: Josua Mayer <[email protected]>
+Date: Mon, 4 Nov 2024 15:16:27 +0100
+Subject: [PATCH 11/13] board: solidrun: lx2160acex7: allocate memory before
+ patching lx2162 fdt
+
+Update of second usb controller fdt node during board_fix_fdt fails due
+to lack of space in the fdt.
+
+Explicitly allocate some extra bytes before to repair this fixup on
+lx2162 som.
+
+Signed-off-by: Josua Mayer <[email protected]>
+---
+ board/solidrun/lx2160acex7/lx2160a.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/board/solidrun/lx2160acex7/lx2160a.c b/board/solidrun/lx2160acex7/lx2160a.c
+index e0a9e6c51eb..17160d13154 100644
+--- a/board/solidrun/lx2160acex7/lx2160a.c
++++ b/board/solidrun/lx2160acex7/lx2160a.c
+@@ -81,8 +81,13 @@ int board_fix_fdt(void *fdt)
+ 	int off = -1, i = 0;
+ 	u32 is_lx2162 = get_svr() & 0x800;
+
+-	if (is_lx2162)
++	if (is_lx2162) {
++		/* allocate space for changes */
++		fdt_increase_size(fdt, 32);
++
++		/* LX2162 does not have second USB controller, disable */
+ 		do_fixup_by_path_string(fdt, "/usb3@3110000", "status", "disabled");
++	}
+
+ 	board_fix_fdt_eth(fdt);
+
+-- 
+2.43.0
+

patches/u-boot/0012-cmd-tlv_eeprom-support-specifying-tlv-eeprom-in-DT-a.patch

@@ -0,0 +1,58 @@
+From bc8a68d153dcfd75153d81c52531743e43f23983 Mon Sep 17 00:00:00 2001
+From: Josua Mayer <[email protected]>
+Date: Mon, 4 Nov 2024 15:08:01 +0100
+Subject: [PATCH 12/13] cmd: tlv_eeprom: support specifying tlv eeprom in DT
+ alias tlv[0-255]
+
+Systems might have many eeproms of which only some might be used for TLV
+data.
+If present, use aliases tlv0, tlv1, ... for finding tlv eeproms.
+
+If no eeproms are found by alias, fall back to current logic if using
+first eeproms in the system.
+
+Signed-off-by: Josua Mayer <[email protected]>
+---
+ cmd/tlv_eeprom.c | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+diff --git a/cmd/tlv_eeprom.c b/cmd/tlv_eeprom.c
+index cbc11ebf421..546ede2dda2 100644
+--- a/cmd/tlv_eeprom.c
++++ b/cmd/tlv_eeprom.c
+@@ -899,9 +899,32 @@ static void show_tlv_devices(void)
+ static int find_tlv_devices(struct udevice **tlv_devices_p)
+ {
+ 	int ret;
++	char alias_name[7];
+ 	int count_dev = 0;
++	int i;
++	ofnode node;
+ 	struct udevice *dev;
+
++	/* find by alias */
++	for (int i = 0; i < ARRAY_SIZE(tlv_devices_p); i++) {
++		snprintf(alias_name, sizeof(alias_name), "tlv%d", i);
++		node = ofnode_get_aliases_node(alias_name);
++		if (!ofnode_valid(node))
++			continue;
++
++		ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, node, &dev);
++		if (ret) {
++			debug("get device \"%s\" failed with %d\n", alias_name, ret);
++			continue;
++		}
++
++		tlv_devices_p[i] = dev;
++		count_dev++;
++	}
++	if (count_dev)
++		return 0;
++
++	/* fall-back: find among all eeproms */
+ 	for (ret = uclass_first_device_check(UCLASS_I2C_EEPROM, &dev);
+ 			dev;
+ 			ret = uclass_next_device_check(&dev)) {
+-- 
+2.43.0
+

patches/u-boot/0013-board-solidrun-lx2160acex7-use-dt-alias-for-tlv-eepr.patch

@@ -0,0 +1,90 @@
+From 38e36f6ceec2ecccc97369bec7e2589933001359 Mon Sep 17 00:00:00 2001
+From: Josua Mayer <[email protected]>
+Date: Mon, 4 Nov 2024 15:12:04 +0100
+Subject: [PATCH 13/13] board: solidrun: lx2160acex7: use dt alias for tlv
+ eeprom
+
+LX2160A CEX-7 (and LX2162A SoM) have various eeproms competing for
+tlv_eeprom command.
+
+Add tlv0 alias to u-boot dts identifying the correct eeprom.
+
+On LX2162 SoM the eeprom is directly on the bus without a mux.
+Add dt patching logic fixing the alias and eeprom nodes when running on
+lx2162 soc.
+
+Signed-off-by: Josua Mayer <[email protected]>
+---
+ arch/arm/dts/fsl-lx2160a-cex7-u-boot.dtsi | 19 +++++++++----------
+ arch/arm/dts/fsl-lx2160a-cex7.dtsi        |  2 +-
+ board/solidrun/lx2160acex7/lx2160a.c      |  5 +++++
+ 3 files changed, 15 insertions(+), 11 deletions(-)
+
+diff --git a/arch/arm/dts/fsl-lx2160a-cex7-u-boot.dtsi b/arch/arm/dts/fsl-lx2160a-cex7-u-boot.dtsi
+index 9855fcb31cc..5909af2b1b9 100644
+--- a/arch/arm/dts/fsl-lx2160a-cex7-u-boot.dtsi
++++ b/arch/arm/dts/fsl-lx2160a-cex7-u-boot.dtsi
+@@ -1,6 +1,10 @@
+ // SPDX-License-Identifier: GPL-2.0+
+
+ / {
++	aliases {
++		tlv0 = &com_eeprom;
++	};
++
+ 	fanctrl-override {
+ 		compatible = "solidrun,lx2160acex7-fanctrl-override";
+ 		override-gpios = <&gpio2 2 0>;
+@@ -8,15 +12,10 @@
+ };
+
+ &i2c0 {
+-	u-boot,dm-pre-reloc;
+-
+-	i2c-mux@77 {
+-		u-boot,dm-pre-reloc;
+-
+-		i2c@0 {
+-			eeprom@57 {
+-				u-boot,dm-pre-reloc;
+-			};
+-		};
++	/* for LX2162 SoM */
++	eeprom@57 {
++		compatible = "st,24c02", "atmel,24c02";
++		reg = <0x57>;
++		status = "disabled";
+ 	};
+ };
+diff --git a/arch/arm/dts/fsl-lx2160a-cex7.dtsi b/arch/arm/dts/fsl-lx2160a-cex7.dtsi
+index d32a52ab00a..ca87a21aaee 100644
+--- a/arch/arm/dts/fsl-lx2160a-cex7.dtsi
++++ b/arch/arm/dts/fsl-lx2160a-cex7.dtsi
+@@ -80,7 +80,7 @@
+ 				reg = <0x53>;
+ 			};
+
+-			eeprom@57 {
++			com_eeprom: eeprom@57 {
+ 				compatible = "atmel,24c02";
+ 				reg = <0x57>;
+ 			};
+diff --git a/board/solidrun/lx2160acex7/lx2160a.c b/board/solidrun/lx2160acex7/lx2160a.c
+index 17160d13154..dcd8d63ddf8 100644
+--- a/board/solidrun/lx2160acex7/lx2160a.c
++++ b/board/solidrun/lx2160acex7/lx2160a.c
+@@ -87,6 +87,11 @@ int board_fix_fdt(void *fdt)
+
+ 		/* LX2162 does not have second USB controller, disable */
+ 		do_fixup_by_path_string(fdt, "/usb3@3110000", "status", "disabled");
++
++		/* LX2162 SoM has different tlv eeprom - enable and patch alias */
++		do_fixup_by_path_string(fdt, "/aliases", "tlv0", "/i2c@2000000/eeprom@57");
++		do_fixup_by_path_string(fdt, "/i2c@2000000/eeprom@57", "status", "okay");
++		do_fixup_by_path_string(fdt, "/i2c@2000000/i2c-mux@77/i2c@0/eeprom@57", "status", "disabled");
+ 	}
+
+ 	board_fix_fdt_eth(fdt);
+-- 
+2.43.0
+