bootstd: Rename distro and syslinux to extlinux

We use the terms 'distro' to mean extlinux but they are not really the
same. 'Distro' could refer to any method of booting a distribution,
whereas extlinux is a particular method.

Also we sometimes use syslinux, but it is better to use the same term in
all cases.

Rename distro to syslinux and also update bootstd uses of syslinux to use
extlinux instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 453e53d..6f9af48 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -86,8 +86,8 @@
 		filename-prefixes = "/", "/boot/";
 		bootdev-order = "mmc2", "mmc1";
 
-		syslinux {
-			compatible = "u-boot,distro-syslinux";
+		extlinux {
+			compatible = "u-boot,extlinux";
 		};
 
 		efi {
diff --git a/boot/Kconfig b/boot/Kconfig
index fad8e53..3f8e407 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -462,25 +462,33 @@
 	  EFI bootmgr, since they take full control over which bootdevs are
 	  selected to boot.
 
-config BOOTMETH_DISTRO
-	bool "Bootdev support for distro boot"
+config BOOTMETH_EXTLINUX
+	bool "Bootdev support for extlinux boot"
 	select PXE_UTILS
 	default y
 	help
-	  Enables support for distro boot using bootdevs. This makes the
+	  Enables support for extlinux boot using bootdevs. This makes the
 	  bootdevs look for a 'extlinux/extlinux.conf' on each filesystem
 	  they scan.
 
+	  The specification for this filed is here:
+
+	    https://uapi-group.org/specifications/specs/boot_loader_specification/
+
 	  This provides a way to try out standard boot on an existing boot flow.
 
-config BOOTMETH_DISTRO_PXE
-	bool "Bootdev support for distro boot over network"
+config BOOTMETH_EXTLINUX_PXE
+	bool "Bootdev support for extlinux boot over network"
 	depends on CMD_PXE && CMD_NET && DM_ETH
 	default y
 	help
-	  Enables support for distro boot using bootdevs. This makes the
+	  Enables support for extlinux boot using bootdevs. This makes the
 	  bootdevs look for a 'extlinux/extlinux.conf' on the tftp server.
 
+	  The specification for this file is here:
+
+	    https://uapi-group.org/specifications/specs/boot_loader_specification/
+
 	  This provides a way to try out standard boot on an existing boot flow.
 
 config BOOTMETH_EFILOADER
diff --git a/boot/Makefile b/boot/Makefile
index 88193a1..f94c31d 100644
--- a/boot/Makefile
+++ b/boot/Makefile
@@ -24,8 +24,8 @@
 obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootmeth-uclass.o
 obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootstd-uclass.o
 
-obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_DISTRO) += bootmeth_distro.o
-obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_DISTRO_PXE) += bootmeth_pxe.o
+obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EXTLINUX) += bootmeth_extlinux.o
+obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EXTLINUX_PXE) += bootmeth_pxe.o
 obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_EFILOADER) += bootmeth_efi.o
 obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_SANDBOX) += bootmeth_sandbox.o
 obj-$(CONFIG_$(SPL_TPL_)BOOTMETH_SCRIPT) += bootmeth_script.o
diff --git a/boot/bootmeth_distro.c b/boot/bootmeth_extlinux.c
similarity index 66%
rename from boot/bootmeth_distro.c
rename to boot/bootmeth_extlinux.c
index b4b73ec..24be076 100644
--- a/boot/bootmeth_distro.c
+++ b/boot/bootmeth_extlinux.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Bootmethod for distro boot (syslinux boot from a block device)
+ * Bootmethod for extlinux boot from a block device
  *
  * Copyright 2021 Google LLC
  * Written by Simon Glass <sjg@chromium.org>
@@ -14,15 +14,15 @@
 #include <bootmeth.h>
 #include <bootstd.h>
 #include <command.h>
-#include <distro.h>
 #include <dm.h>
+#include <extlinux.h>
 #include <fs.h>
 #include <malloc.h>
 #include <mapmem.h>
 #include <mmc.h>
 #include <pxe_utils.h>
 
-static int distro_get_state_desc(struct udevice *dev, char *buf, int maxsize)
+static int extlinux_get_state_desc(struct udevice *dev, char *buf, int maxsize)
 {
 	if (IS_ENABLED(CONFIG_SANDBOX)) {
 		int len;
@@ -35,10 +35,10 @@
 	return 0;
 }
 
-static int distro_getfile(struct pxe_context *ctx, const char *file_path,
-			  char *file_addr, ulong *sizep)
+static int extlinux_getfile(struct pxe_context *ctx, const char *file_path,
+			    char *file_addr, ulong *sizep)
 {
-	struct distro_info *info = ctx->userdata;
+	struct extlinux_info *info = ctx->userdata;
 	ulong addr;
 	int ret;
 
@@ -54,7 +54,7 @@
 	return 0;
 }
 
-static int distro_check(struct udevice *dev, struct bootflow_iter *iter)
+static int extlinux_check(struct udevice *dev, struct bootflow_iter *iter)
 {
 	int ret;
 
@@ -67,12 +67,12 @@
 }
 
 /**
- * distro_fill_info() - Decode the extlinux file to find out distro info
+ * extlinux_fill_info() - Decode the extlinux file to find out its info
  *
  * @bflow: Bootflow to process
  * @return 0 if OK, -ve on error
  */
-static int distro_fill_info(struct bootflow *bflow)
+static int extlinux_fill_info(struct bootflow *bflow)
 {
 	struct membuff mb;
 	char line[200];
@@ -98,7 +98,7 @@
 	return 0;
 }
 
-static int distro_read_bootflow(struct udevice *dev, struct bootflow *bflow)
+static int extlinux_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 {
 	struct blk_desc *desc;
 	const char *const *prefixes;
@@ -121,7 +121,7 @@
 	do {
 		prefix = prefixes ? prefixes[i] : NULL;
 
-		ret = bootmeth_try_file(bflow, desc, prefix, DISTRO_FNAME);
+		ret = bootmeth_try_file(bflow, desc, prefix, EXTLINUX_FNAME);
 	} while (ret && prefixes && prefixes[++i]);
 	if (ret)
 		return log_msg_ret("try", ret);
@@ -131,25 +131,25 @@
 	if (ret)
 		return log_msg_ret("read", ret);
 
-	ret = distro_fill_info(bflow);
+	ret = extlinux_fill_info(bflow);
 	if (ret)
 		return log_msg_ret("inf", ret);
 
 	return 0;
 }
 
-static int distro_boot(struct udevice *dev, struct bootflow *bflow)
+static int extlinux_boot(struct udevice *dev, struct bootflow *bflow)
 {
 	struct cmd_tbl cmdtp = {};	/* dummy */
 	struct pxe_context ctx;
-	struct distro_info info;
+	struct extlinux_info info;
 	ulong addr;
 	int ret;
 
 	addr = map_to_sysmem(bflow->buf);
 	info.dev = dev;
 	info.bflow = bflow;
-	ret = pxe_setup_ctx(&ctx, &cmdtp, distro_getfile, &info, true,
+	ret = pxe_setup_ctx(&ctx, &cmdtp, extlinux_getfile, &info, true,
 			    bflow->subdir, false);
 	if (ret)
 		return log_msg_ret("ctx", -EINVAL);
@@ -161,33 +161,33 @@
 	return 0;
 }
 
-static int distro_bootmeth_bind(struct udevice *dev)
+static int extlinux_bootmeth_bind(struct udevice *dev)
 {
 	struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev);
 
 	plat->desc = IS_ENABLED(CONFIG_BOOTSTD_FULL) ?
-		"Syslinux boot from a block device" : "syslinux";
+		"Extlinux boot from a block device" : "extlinux";
 
 	return 0;
 }
 
-static struct bootmeth_ops distro_bootmeth_ops = {
-	.get_state_desc	= distro_get_state_desc,
-	.check		= distro_check,
-	.read_bootflow	= distro_read_bootflow,
+static struct bootmeth_ops extlinux_bootmeth_ops = {
+	.get_state_desc	= extlinux_get_state_desc,
+	.check		= extlinux_check,
+	.read_bootflow	= extlinux_read_bootflow,
 	.read_file	= bootmeth_common_read_file,
-	.boot		= distro_boot,
+	.boot		= extlinux_boot,
 };
 
-static const struct udevice_id distro_bootmeth_ids[] = {
-	{ .compatible = "u-boot,distro-syslinux" },
+static const struct udevice_id extlinux_bootmeth_ids[] = {
+	{ .compatible = "u-boot,extlinux" },
 	{ }
 };
 
-U_BOOT_DRIVER(bootmeth_distro) = {
-	.name		= "bootmeth_distro",
+U_BOOT_DRIVER(bootmeth_extlinux) = {
+	.name		= "bootmeth_extlinux",
 	.id		= UCLASS_BOOTMETH,
-	.of_match	= distro_bootmeth_ids,
-	.ops		= &distro_bootmeth_ops,
-	.bind		= distro_bootmeth_bind,
+	.of_match	= extlinux_bootmeth_ids,
+	.ops		= &extlinux_bootmeth_ops,
+	.bind		= extlinux_bootmeth_bind,
 };
diff --git a/boot/bootmeth_pxe.c b/boot/bootmeth_pxe.c
index 5a8af2b..ce986bd 100644
--- a/boot/bootmeth_pxe.c
+++ b/boot/bootmeth_pxe.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Bootmethod for distro boot using PXE (network boot)
+ * Bootmethod for extlinux boot using PXE (network boot)
  *
  * Copyright 2021 Google LLC
  * Written by Simon Glass <sjg@chromium.org>
@@ -13,8 +13,8 @@
 #include <bootflow.h>
 #include <bootmeth.h>
 #include <command.h>
-#include <distro.h>
 #include <dm.h>
+#include <extlinux.h>
 #include <fs.h>
 #include <log.h>
 #include <malloc.h>
@@ -23,10 +23,10 @@
 #include <net.h>
 #include <pxe_utils.h>
 
-static int distro_pxe_getfile(struct pxe_context *ctx, const char *file_path,
-			      char *file_addr, ulong *sizep)
+static int extlinux_pxe_getfile(struct pxe_context *ctx, const char *file_path,
+				char *file_addr, ulong *sizep)
 {
-	struct distro_info *info = ctx->userdata;
+	struct extlinux_info *info = ctx->userdata;
 	ulong addr;
 	int ret;
 
@@ -39,7 +39,7 @@
 	return 0;
 }
 
-static int distro_pxe_check(struct udevice *dev, struct bootflow_iter *iter)
+static int extlinux_pxe_check(struct udevice *dev, struct bootflow_iter *iter)
 {
 	int ret;
 
@@ -54,7 +54,8 @@
 	return 0;
 }
 
-static int distro_pxe_read_bootflow(struct udevice *dev, struct bootflow *bflow)
+static int extlinux_pxe_read_bootflow(struct udevice *dev,
+				      struct bootflow *bflow)
 {
 	const char *addr_str;
 	char fname[200];
@@ -90,7 +91,7 @@
 		}
 	}
 	snprintf(fname, sizeof(fname), "%s%s",
-		 bflow->subdir ? bflow->subdir : "", DISTRO_FNAME);
+		 bflow->subdir ? bflow->subdir : "", EXTLINUX_FNAME);
 
 	bflow->fname = strdup(fname);
 	if (!bflow->fname)
@@ -108,8 +109,9 @@
 	return 0;
 }
 
-static int distro_pxe_read_file(struct udevice *dev, struct bootflow *bflow,
-				const char *file_path, ulong addr, ulong *sizep)
+static int extlinux_pxe_read_file(struct udevice *dev, struct bootflow *bflow,
+				  const char *file_path, ulong addr,
+				  ulong *sizep)
 {
 	char *tftp_argv[] = {"tftp", NULL, NULL, NULL};
 	struct pxe_context *ctx = dev_get_priv(dev);
@@ -133,11 +135,11 @@
 	return 0;
 }
 
-static int distro_pxe_boot(struct udevice *dev, struct bootflow *bflow)
+static int extlinux_pxe_boot(struct udevice *dev, struct bootflow *bflow)
 {
 	struct pxe_context *ctx = dev_get_priv(dev);
 	struct cmd_tbl cmdtp = {};	/* dummy */
-	struct distro_info info;
+	struct extlinux_info info;
 	ulong addr;
 	int ret;
 
@@ -145,7 +147,7 @@
 	info.dev = dev;
 	info.bflow = bflow;
 	info.cmdtp = &cmdtp;
-	ret = pxe_setup_ctx(ctx, &cmdtp, distro_pxe_getfile, &info, false,
+	ret = pxe_setup_ctx(ctx, &cmdtp, extlinux_pxe_getfile, &info, false,
 			    bflow->subdir, false);
 	if (ret)
 		return log_msg_ret("ctx", -EINVAL);
@@ -157,7 +159,7 @@
 	return 0;
 }
 
-static int distro_bootmeth_pxe_bind(struct udevice *dev)
+static int extlinux_bootmeth_pxe_bind(struct udevice *dev)
 {
 	struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev);
 
@@ -167,23 +169,23 @@
 	return 0;
 }
 
-static struct bootmeth_ops distro_bootmeth_pxe_ops = {
-	.check		= distro_pxe_check,
-	.read_bootflow	= distro_pxe_read_bootflow,
-	.read_file	= distro_pxe_read_file,
-	.boot		= distro_pxe_boot,
+static struct bootmeth_ops extlinux_bootmeth_pxe_ops = {
+	.check		= extlinux_pxe_check,
+	.read_bootflow	= extlinux_pxe_read_bootflow,
+	.read_file	= extlinux_pxe_read_file,
+	.boot		= extlinux_pxe_boot,
 };
 
-static const struct udevice_id distro_bootmeth_pxe_ids[] = {
-	{ .compatible = "u-boot,distro-pxe" },
+static const struct udevice_id extlinux_bootmeth_pxe_ids[] = {
+	{ .compatible = "u-boot,extlinux-pxe" },
 	{ }
 };
 
 U_BOOT_DRIVER(bootmeth_pxe) = {
 	.name		= "bootmeth_pxe",
 	.id		= UCLASS_BOOTMETH,
-	.of_match	= distro_bootmeth_pxe_ids,
-	.ops		= &distro_bootmeth_pxe_ops,
-	.bind		= distro_bootmeth_pxe_bind,
+	.of_match	= extlinux_bootmeth_pxe_ids,
+	.ops		= &extlinux_bootmeth_pxe_ops,
+	.bind		= extlinux_bootmeth_pxe_bind,
 	.priv_auto	= sizeof(struct pxe_context),
 };
diff --git a/boot/bootmeth_qfw.c b/boot/bootmeth_qfw.c
index a5f95d4..ecd4b08 100644
--- a/boot/bootmeth_qfw.c
+++ b/boot/bootmeth_qfw.c
@@ -89,7 +89,7 @@
 };
 
 static const struct udevice_id qfw_bootmeth_ids[] = {
-	{ .compatible = "u-boot,qfw-syslinux" },
+	{ .compatible = "u-boot,qfw-extlinux" },
 	{ }
 };
 
diff --git a/boot/bootmeth_sandbox.c b/boot/bootmeth_sandbox.c
index 13ec5e9..aabc57e 100644
--- a/boot/bootmeth_sandbox.c
+++ b/boot/bootmeth_sandbox.c
@@ -56,7 +56,7 @@
 };
 
 static const struct udevice_id sandbox_bootmeth_ids[] = {
-	{ .compatible = "u-boot,sandbox-syslinux" },
+	{ .compatible = "u-boot,sandbox-extlinux" },
 	{ }
 };
 
diff --git a/doc/develop/bootstd.rst b/doc/develop/bootstd.rst
index 5dfa6cf..7a2a69f 100644
--- a/doc/develop/bootstd.rst
+++ b/doc/develop/bootstd.rst
@@ -154,7 +154,7 @@
 This environment variable can be used to control the list of bootmeths used and
 their ordering for example::
 
-   setenv bootmeths "syslinux efi"
+   setenv bootmeths "extlinux efi"
 
 Entries may be removed or re-ordered in this list to affect the order the
 bootmeths are tried on each bootdev. If the variable is empty, the default
@@ -389,8 +389,8 @@
 -------------
 
 Standard boot is enabled with `CONFIG_BOOTSTD`. Each bootmeth has its own CONFIG
-option also. For example, `CONFIG_BOOTMETH_DISTRO` enables support for distro
-boot from a disk.
+option also. For example, `CONFIG_BOOTMETH_EXTLINUX` enables support for
+booting from a disk using an `extlinux.conf` file.
 
 To enable all feature sof standard boot, use `CONFIG_BOOTSTD_FULL`. This
 includes the full set of commands, more error messages when things go wrong and
@@ -406,8 +406,8 @@
 
 Bootmeth drivers are provided for:
 
-   - distro boot from a disk (syslinux)
-   - distro boot from a network (PXE)
+   - extlinux / syslinux boot from a disk
+   - extlinux boot from a network (PXE)
    - U-Boot scripts from disk, network or SPI flash
    - EFI boot using bootefi from disk
    - VBE
@@ -683,8 +683,8 @@
 in that case the host filesystem can be accessed even though the block device
 is NULL.
 
-If we take the example of the `bootmeth_distro` driver, this call ends up at
-`distro_read_bootflow()`. It has the filesystem ready, so tries various
+If we take the example of the `bootmeth_extlinux` driver, this call ends up at
+`extlinux_read_bootflow()`. It has the filesystem ready, so tries various
 filenames to try to find the `extlinux.conf` file, reading it if possible. If
 all goes well the bootflow ends up in the `BOOTFLOWST_READY` state.
 
@@ -697,12 +697,12 @@
 
 That is the basic operation of scanning for bootflows. The process of booting a
 bootflow is handled by the bootmeth driver for that bootflow. In the case of
-distro boot, this parses and processes the `extlinux.conf` file that was read.
-See `distro_boot()` for how that works. The processing may involve reading
+extlinux boot, this parses and processes the `extlinux.conf` file that was read.
+See `extlinux_boot()` for how that works. The processing may involve reading
 additional files, which is handled by the `read_file()` method, which is
-`distro_read_file()` in this case. All bootmethds should support reading files,
-since the bootflow is typically only the basic instructions and does not include
-the operating system itself, ramdisk, device tree, etc.
+`extlinux_read_file()` in this case. All bootmethds should support reading
+files, since the bootflow is typically only the basic instructions and does not
+include the operating system itself, ramdisk, device tree, etc.
 
 The vast majority of the bootstd code is concerned with iterating through
 partitions on bootdevs and using bootmethds to find bootflows.
diff --git a/doc/device-tree-bindings/bootmeth.txt b/doc/device-tree-bindings/bootmeth.txt
index de6396a..127b09c 100644
--- a/doc/device-tree-bindings/bootmeth.txt
+++ b/doc/device-tree-bindings/bootmeth.txt
@@ -7,8 +7,8 @@
 Required properties:
 
 compatible:
-   "u-boot,distro-syslinux" - distro boot from a block device
-   "u-boot,distro-pxe" - distro boot from a network device
+   "u-boot,extlinux" - distro boot from a block device
+   "u-boot,extlinux-pxe" - distro boot from a network device
    "u-boot,distro-efi" - EFI boot from an .efi file
    "u-boot,efi-bootmgr" - EFI boot using boot manager (bootmgr)
 
@@ -21,8 +21,8 @@
 		filename-prefixes = "/", "/boot/";
 		bootdev-order = "mmc2", "mmc1";
 
-		syslinux {
-			compatible = "u-boot,distro-syslinux";
+		extlinux {
+			compatible = "u-boot,extlinux";
 		};
 
 		efi {
diff --git a/doc/device-tree-bindings/bootstd.txt b/doc/device-tree-bindings/bootstd.txt
index 8706c5f..1f1b9cb 100644
--- a/doc/device-tree-bindings/bootstd.txt
+++ b/doc/device-tree-bindings/bootstd.txt
@@ -26,8 +26,8 @@
 		filename-prefixes = "/", "/boot/";
 		bootdev-order = "mmc2", "mmc1";
 
-		syslinux {
-			compatible = "u-boot,distro-syslinux";
+		extlinux {
+			compatible = "u-boot,extlinux";
 		};
 
 		efi {
diff --git a/doc/usage/cmd/bootflow.rst b/doc/usage/cmd/bootflow.rst
index cad09bb..8590efc 100644
--- a/doc/usage/cmd/bootflow.rst
+++ b/doc/usage/cmd/bootflow.rst
@@ -148,7 +148,7 @@
 Device     mmc\@7e202000.bootdev
 Block dev  mmc\@7e202000.blk
 Type       distro
-Method:    syslinux
+Method:    extlinux
 State      ready
 Partition  2
 Subdir     (none)
diff --git a/doc/usage/cmd/bootmeth.rst b/doc/usage/cmd/bootmeth.rst
index 29d8215..f632d74 100644
--- a/doc/usage/cmd/bootmeth.rst
+++ b/doc/usage/cmd/bootmeth.rst
@@ -45,7 +45,7 @@
 =====  ===  ==================  =================================
 Order  Seq  Name                Description
 =====  ===  ==================  =================================
-    0    0  distro              Syslinux boot from a block device
+    0    0  extlinunx           Extlinux boot from a block device
     1    1  efi                 EFI boot from an .efi file
     2    2  pxe                 PXE boot from a network device
     3    3  sandbox             Sandbox boot for testing
@@ -77,7 +77,7 @@
     => bootmeth list
     Order  Seq  Name                Description
     -----  ---  ------------------  ------------------
-        0    0  distro              Syslinux boot from a block device
+        0    0  distro              Extlinux boot from a block device
         1    1  efi                 EFI boot from an .efi file
         2    2  pxe                 PXE boot from a network device
         3    3  sandbox             Sandbox boot for testing
@@ -92,7 +92,7 @@
     Order  Seq  Name                Description
     -----  ---  ------------------  ------------------
         0    3  sandbox             Sandbox boot for testing
-        1    0  distro              Syslinux boot from a block device
+        1    0  distro              Extlinux boot from a block device
     -----  ---  ------------------  ------------------
     (2 bootmeths)
 
@@ -102,7 +102,7 @@
     => bootmeth list -a
     Order  Seq  Name                Description
     -----  ---  ------------------  ------------------
-        1    0  distro              Syslinux boot from a block device
+        1    0  distro              Extlinux boot from a block device
         -    1  efi                 EFI boot from an .efi file
         -    2  pxe                 PXE boot from a network device
         0    3  sandbox             Sandbox boot for testing
diff --git a/doc/usage/cmd/dm.rst b/doc/usage/cmd/dm.rst
index 236cd02..74c6b01 100644
--- a/doc/usage/cmd/dm.rst
+++ b/doc/usage/cmd/dm.rst
@@ -366,7 +366,7 @@
     ..
     sysreset      0  [   ]   sysreset_sandbox      |-- sysreset_sandbox
     bootstd       0  [   ]   bootstd_drv           |-- bootstd
-    bootmeth      0  [   ]   bootmeth_distro       |   |-- syslinux
+    bootmeth      0  [   ]   bootmeth_extlinux     |   |-- extlinux
     bootmeth      1  [   ]   bootmeth_efi          |   `-- efi
     reboot-mod    0  [   ]   reboot-mode-gpio      |-- reboot-mode0
     reboot-mod    1  [   ]   reboot-mode-rtc       |-- reboot-mode@14
diff --git a/include/bootmeth.h b/include/bootmeth.h
index b12dfd4..c3df970 100644
--- a/include/bootmeth.h
+++ b/include/bootmeth.h
@@ -255,7 +255,7 @@
  * This selects the ordering to use for bootmeths
  *
  * @order_str: String containing the ordering. This is a comma-separate list of
- * bootmeth-device names, e.g. "syslinux,efi". If empty then a default ordering
+ * bootmeth-device names, e.g. "extlinux,efi". If empty then a default ordering
  * is used, based on the sequence number of devices (i.e. using aliases)
  * Return: 0 if OK, -ENODEV if an unknown bootmeth is mentioned, -ENOMEM if
  * out of memory, -ENOENT if there are no bootmeth devices
diff --git a/include/distro.h b/include/extlinux.h
similarity index 62%
rename from include/distro.h
rename to include/extlinux.h
index 2ee1458..721ba46 100644
--- a/include/distro.h
+++ b/include/extlinux.h
@@ -4,18 +4,18 @@
  * Written by Simon Glass <sjg@chromium.org>
  */
 
-#ifndef __distro_h
-#define __distro_h
+#ifndef __extlinux_h
+#define __extlinux_h
 
-#define DISTRO_FNAME	"extlinux/extlinux.conf"
+#define EXTLINUX_FNAME	"extlinux/extlinux.conf"
 
 /**
- * struct distro_info - useful information for distro_getfile()
+ * struct extlinux_info - useful information for extlinux_getfile()
  *
  * @dev: bootmethod device being used to boot
  * @bflow: bootflow being booted
  */
-struct distro_info {
+struct extlinux_info {
 	struct udevice *dev;
 	struct bootflow *bflow;
 	struct cmd_tbl *cmdtp;
diff --git a/net/eth_bootdev.c b/net/eth_bootdev.c
index 13e5fcd..f7b4196 100644
--- a/net/eth_bootdev.c
+++ b/net/eth_bootdev.c
@@ -13,8 +13,8 @@
 #include <bootflow.h>
 #include <command.h>
 #include <bootmeth.h>
-#include <distro.h>
 #include <dm.h>
+#include <extlinux.h>
 #include <init.h>
 #include <log.h>
 #include <net.h>
@@ -36,7 +36,7 @@
 		return log_msg_ret("check", ret);
 
 	/*
-	 * Like distro boot, this assumes there is only one Ethernet device.
+	 * Like extlinux boot, this assumes there is only one Ethernet device.
 	 * In this case, that means that @eth is ignored
 	 */
 
diff --git a/test/boot/bootflow.c b/test/boot/bootflow.c
index bb53bab..2b5f87d 100644
--- a/test/boot/bootflow.c
+++ b/test/boot/bootflow.c
@@ -57,7 +57,7 @@
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("Scanning bootdev 'mmc2.bootdev':");
 	ut_assert_nextline("Scanning bootdev 'mmc1.bootdev':");
-	ut_assert_nextline("  0  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_nextline("  0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextline("No more bootdevs");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(1 bootflow, 1 valid)");
@@ -67,7 +67,7 @@
 	ut_assert_nextline("Showing bootflows for bootdev 'mmc1.bootdev'");
 	ut_assert_nextline("Seq  Method       State   Uclass    Part  Name                      Filename");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("  0  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_nextline("  0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(1 bootflow, 1 valid)");
 	ut_assert_console_end();
@@ -136,7 +136,7 @@
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("Scanning bootdev 'mmc2.bootdev':");
 	ut_assert_nextline("Scanning bootdev 'mmc1.bootdev':");
-	ut_assert_nextline("  0  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_nextline("  0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextline("Scanning bootdev 'mmc0.bootdev':");
 	ut_assert_nextline("No more bootdevs");
 	ut_assert_nextlinen("---");
@@ -147,7 +147,7 @@
 	ut_assert_nextline("Showing all bootflows");
 	ut_assert_nextline("Seq  Method       State   Uclass    Part  Name                      Filename");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("  0  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_nextline("  0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(1 bootflow, 1 valid)");
 	ut_assert_console_end();
@@ -167,17 +167,17 @@
 	ut_assert_nextline("Seq  Method       State   Uclass    Part  Name                      Filename");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("Scanning bootdev 'mmc2.bootdev':");
-	ut_assert_nextline("  0  syslinux     media   mmc          0  mmc2.bootdev.whole        <NULL>");
+	ut_assert_nextline("  0  extlinux     media   mmc          0  mmc2.bootdev.whole        <NULL>");
 	ut_assert_nextline("     ** No partition found, err=-93: Protocol not supported");
 	ut_assert_nextline("  1  efi          media   mmc          0  mmc2.bootdev.whole        <NULL>");
 	ut_assert_nextline("     ** No partition found, err=-93: Protocol not supported");
 
 	ut_assert_nextline("Scanning bootdev 'mmc1.bootdev':");
-	ut_assert_nextline("  2  syslinux     media   mmc          0  mmc1.bootdev.whole        <NULL>");
+	ut_assert_nextline("  2  extlinux     media   mmc          0  mmc1.bootdev.whole        <NULL>");
 	ut_assert_nextline("     ** No partition found, err=-2: No such file or directory");
 	ut_assert_nextline("  3  efi          media   mmc          0  mmc1.bootdev.whole        <NULL>");
 	ut_assert_nextline("     ** No partition found, err=-2: No such file or directory");
-	ut_assert_nextline("  4  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_nextline("  4  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextline("  5  efi          fs      mmc          1  mmc1.bootdev.part_1       efi/boot/bootsbox.efi");
 
 	ut_assert_skip_to_line("Scanning bootdev 'mmc0.bootdev':");
@@ -192,9 +192,9 @@
 	ut_assert_nextline("Showing all bootflows");
 	ut_assert_nextline("Seq  Method       State   Uclass    Part  Name                      Filename");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("  0  syslinux     media   mmc          0  mmc2.bootdev.whole        <NULL>");
+	ut_assert_nextline("  0  extlinux     media   mmc          0  mmc2.bootdev.whole        <NULL>");
 	ut_assert_nextline("  1  efi          media   mmc          0  mmc2.bootdev.whole        <NULL>");
-	ut_assert_skip_to_line("  4  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+	ut_assert_skip_to_line("  4  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_skip_to_line(" 3f  efi          media   mmc          0  mmc0.bootdev.whole        <NULL>");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(64 bootflows, 1 valid)");
@@ -218,7 +218,7 @@
 	ut_assert_nextline("Name:      mmc1.bootdev.part_1");
 	ut_assert_nextline("Device:    mmc1.bootdev");
 	ut_assert_nextline("Block dev: mmc1.blk");
-	ut_assert_nextline("Method:    syslinux");
+	ut_assert_nextline("Method:    extlinux");
 	ut_assert_nextline("State:     ready");
 	ut_assert_nextline("Partition: 1");
 	ut_assert_nextline("Subdir:    (none)");
@@ -251,7 +251,7 @@
 	ut_assertok(inject_response(uts));
 	ut_assertok(run_command("bootflow scan -b", 0));
 	ut_assert_nextline(
-		"** Booting bootflow 'mmc1.bootdev.part_1' with syslinux");
+		"** Booting bootflow 'mmc1.bootdev.part_1' with extlinux");
 	ut_assert_nextline("Ignoring unknown command: ui");
 
 	/*
@@ -282,7 +282,7 @@
 	ut_asserteq(0, iter.cur_method);
 	ut_asserteq(0, iter.part);
 	ut_asserteq(0, iter.max_part);
-	ut_asserteq_str("syslinux", iter.method->name);
+	ut_asserteq_str("extlinux", iter.method->name);
 	ut_asserteq(0, bflow.err);
 
 	/*
@@ -309,7 +309,7 @@
 	ut_asserteq(0, iter.cur_method);
 	ut_asserteq(0, iter.part);
 	ut_asserteq(0x1e, iter.max_part);
-	ut_asserteq_str("syslinux", iter.method->name);
+	ut_asserteq_str("extlinux", iter.method->name);
 	ut_asserteq(0, bflow.err);
 	ut_asserteq(BOOTFLOWST_MEDIA, bflow.state);
 	bootflow_free(&bflow);
@@ -330,7 +330,7 @@
 	ut_asserteq(0, iter.cur_method);
 	ut_asserteq(1, iter.part);
 	ut_asserteq(0x1e, iter.max_part);
-	ut_asserteq_str("syslinux", iter.method->name);
+	ut_asserteq_str("extlinux", iter.method->name);
 	ut_asserteq(0, bflow.err);
 	ut_asserteq(BOOTFLOWST_READY, bflow.state);
 	bootflow_free(&bflow);
@@ -351,7 +351,7 @@
 	ut_asserteq(0, iter.cur_method);
 	ut_asserteq(2, iter.part);
 	ut_asserteq(0x1e, iter.max_part);
-	ut_asserteq_str("syslinux", iter.method->name);
+	ut_asserteq_str("extlinux", iter.method->name);
 	ut_asserteq(0, bflow.err);
 	ut_asserteq(BOOTFLOWST_MEDIA, bflow.state);
 	bootflow_free(&bflow);
@@ -489,7 +489,7 @@
 	ut_assertok(inject_response(uts));
 	ut_asserteq(1, run_command("bootflow boot", 0));
 	ut_assert_nextline(
-		"** Booting bootflow 'mmc1.bootdev.part_1' with syslinux");
+		"** Booting bootflow 'mmc1.bootdev.part_1' with extlinux");
 	ut_assert_nextline("Ignoring unknown command: ui");
 
 	/*
@@ -614,7 +614,7 @@
 	ut_assert_nextline("Scanning bootdev 'mmc2.bootdev':");
 	ut_assert_nextline("Scanning bootdev 'mmc1.bootdev':");
 	ut_assert_nextline(
-		"  0  syslinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
+		"  0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf");
 	ut_assert_nextline("Scanning bootdev 'mmc0.bootdev':");
 	ut_assert_skip_to_line("(1 bootflow, 1 valid)");
 	ut_assert_console_end();
diff --git a/test/boot/bootmeth.c b/test/boot/bootmeth.c
index 0098ef3..e498eee 100644
--- a/test/boot/bootmeth.c
+++ b/test/boot/bootmeth.c
@@ -21,7 +21,7 @@
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    1    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -39,16 +39,16 @@
 {
 	/* Select just one bootmethod */
 	console_record_reset_enable();
-	ut_assertok(run_command("bootmeth order syslinux", 0));
+	ut_assertok(run_command("bootmeth order extlinux", 0));
 	ut_assert_console_end();
 	ut_assertnonnull(env_get("bootmeths"));
-	ut_asserteq_str("syslinux", env_get("bootmeths"));
+	ut_asserteq_str("extlinux", env_get("bootmeths"));
 
 	/* Only that one should be listed */
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(1 bootmeth)");
 	ut_assert_console_end();
@@ -57,7 +57,7 @@
 	ut_assertok(run_command("bootmeth list -a", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    0    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    0    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    -    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -67,12 +67,12 @@
 	ut_assert_console_end();
 
 	/* Check the -a flag with the reverse order */
-	ut_assertok(run_command("bootmeth order \"efi syslinux\"", 0));
+	ut_assertok(run_command("bootmeth order \"efi extlinux\"", 0));
 	ut_assert_console_end();
 	ut_assertok(run_command("bootmeth list -a", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
-	ut_assert_nextline("    1    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    1    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextline("    0    1  efi                 EFI boot from an .efi file");
 	if (IS_ENABLED(CONFIG_BOOTMETH_GLOBAL))
 		ut_assert_nextline(" glob    2  firmware0           VBE simple");
@@ -90,17 +90,17 @@
 		 "(3 bootmeths)" : "(2 bootmeths)");
 
 	/* Try reverse order */
-	ut_assertok(run_command("bootmeth order \"efi syslinux\"", 0));
+	ut_assertok(run_command("bootmeth order \"efi extlinux\"", 0));
 	ut_assert_console_end();
 	ut_assertok(run_command("bootmeth list", 0));
 	ut_assert_nextline("Order  Seq  Name                Description");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("    0    1  efi                 EFI boot from an .efi file");
-	ut_assert_nextline("    1    0  syslinux            Syslinux boot from a block device");
+	ut_assert_nextline("    1    0  extlinux            Extlinux boot from a block device");
 	ut_assert_nextlinen("---");
 	ut_assert_nextline("(2 bootmeths)");
 	ut_assertnonnull(env_get("bootmeths"));
-	ut_asserteq_str("efi syslinux", env_get("bootmeths"));
+	ut_asserteq_str("efi extlinux", env_get("bootmeths"));
 	ut_assert_console_end();
 
 	return 0;
@@ -140,7 +140,7 @@
 
 	/* Select just one bootmethod */
 	console_record_reset_enable();
-	ut_assertok(env_set("bootmeths", "syslinux"));
+	ut_assertok(env_set("bootmeths", "extlinux"));
 	ut_asserteq(1, std->bootmeth_count);
 
 	/* Select an invalid bootmethod */
@@ -149,7 +149,7 @@
 	ut_assert_nextlinen("## Error inserting");
 	ut_assert_console_end();
 
-	ut_assertok(env_set("bootmeths", "efi syslinux"));
+	ut_assertok(env_set("bootmeths", "efi extlinux"));
 	ut_asserteq(2, std->bootmeth_count);
 	ut_assert_console_end();