board: libretech-ac: move board support into dedicated directory

The libretech-ac aka aml-s805x-ac supports mainline U-boot
from a dedicated SPI flash, move the board support into
a dedicated vendor/board subdirectory in order to support
vendor specific customization.

It also aligns with the vendor downstream changes.

Link: https://lore.kernel.org/r/20240917-u-boot-topic-dynamic-uuid-v2-1-416e39c6e271@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

board/amlogic/p212/MAINTAINERS

@@ -5,11 +5,9 @@ L:	u-boot-amlogic@groups.io
 F:	board/amlogic/p212/
 F:	include/configs/p212.h
 F:	configs/khadas-vim_defconfig
-F:	configs/libretech-ac_defconfig
 F:	configs/libretech-cc_defconfig
 F:	configs/libretech-cc_v2_defconfig
 F:	configs/p212_defconfig
 F:	doc/board/amlogic/p212.rst
-F:	doc/board/amlogic/libretech-ac.rst
 F:	doc/board/amlogic/libretech-cc.rst
 F:	doc/board/amlogic/khadas-vim.rst

board/libre-computer/aml-s805x-ac/MAINTAINERS

@@ -0,0 +1,8 @@
+LIBRE-COMPUTER AML-S805X-AC
+M:	Neil Armstrong <neil.armstrong@linaro.org>
+S:	Maintained
+L:	u-boot-amlogic@groups.io
+F:	board/amlogic/aml-s805x-ac/
+F:	include/configs/libretech-ac.h
+F:	configs/libretech-ac_defconfig
+F:	doc/board/amlogic/libretech-ac.rst

board/libre-computer/aml-s805x-ac/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2016 BayLibre, SAS
+# Author: Neil Armstrong <narmstrong@baylibre.com>
+
+obj-y	:= aml-s805x-ac.o

board/libre-computer/aml-s805x-ac/aml-s805x-ac.c

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <dm.h>
+#include <env.h>
+#include <init.h>
+#include <net.h>
+#include <asm/io.h>
+#include <asm/arch/gx.h>
+#include <asm/arch/sm.h>
+#include <asm/arch/eth.h>
+#include <asm/arch/mem.h>
+
+#define EFUSE_SN_OFFSET		20
+#define EFUSE_SN_SIZE		16
+#define EFUSE_MAC_OFFSET	52
+#define EFUSE_MAC_SIZE		6
+
+int misc_init_r(void)
+{
+	u8 mac_addr[EFUSE_MAC_SIZE + 1];
+	char serial[EFUSE_SN_SIZE + 1];
+	ssize_t len;
+
+	if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+					  mac_addr, EFUSE_MAC_SIZE);
+		mac_addr[len] = '\0';
+		if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
+			eth_env_set_enetaddr("ethaddr", mac_addr);
+		else
+			meson_generate_serial_ethaddr();
+	}
+
+	if (!env_get("serial#")) {
+		len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
+			EFUSE_SN_SIZE);
+		serial[len] = '\0';
+		if (len == EFUSE_SN_SIZE)
+			env_set("serial#", serial);
+	}
+
+	return 0;
+}

configs/libretech-ac_defconfig

@@ -1,5 +1,7 @@
 CONFIG_ARM=y
 CONFIG_SYS_CONFIG_NAME="libretech-ac"
+CONFIG_SYS_VENDOR="libre-computer"
+CONFIG_SYS_BOARD="aml-s805x-ac"
 CONFIG_ARCH_MESON=y
 CONFIG_TEXT_BASE=0x01000000
 CONFIG_NR_DRAM_BANKS=1