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>

18 files changed, 136 insertions, 126 deletions

diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 453e53db71..6f9af489a3 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 fad8e530b1..3f8e407be7 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -462,25 +462,33 @@ config BOOTMETH_GLOBAL
 	  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 88193a1b60..f94c31d922 100644
--- a/boot/Makefile
+++ b/boot/Makefile
@@ -24,8 +24,8 @@ obj-$(CONFIG_$(SPL_TPL_)BOOTSTD) += bootflow.o
 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
index b4b73ecbf5..24be076022 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 @@ static int distro_get_state_desc(struct udevice *dev, char *buf, int maxsize)
 	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 @@ static int distro_getfile(struct pxe_context *ctx, const char *file_path,
 	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 @@ static int distro_check(struct udevice *dev, struct bootflow_iter *iter)
 }
 
 /**
- * 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 @@ static int distro_fill_info(struct bootflow *bflow)
 	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 @@ static int distro_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 	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 @@ static int distro_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 	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 @@ static int distro_boot(struct udevice *dev, struct bootflow *bflow)
 	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 5a8af2bbd0..ce986bd260 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 @@ static int distro_pxe_getfile(struct pxe_context *ctx, const char *file_path,
 	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 @@ static int distro_pxe_check(struct udevice *dev, struct bootflow_iter *iter)
 	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 @@ static int distro_pxe_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 		}
 	}
 	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 @@ static int distro_pxe_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 	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 @@ static int distro_pxe_read_file(struct udevice *dev, struct bootflow *bflow,
 	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 @@ static int distro_pxe_boot(struct udevice *dev, struct bootflow *bflow)
 	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 @@ static int distro_pxe_boot(struct udevice *dev, struct bootflow *bflow)
 	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 @@ static int distro_bootmeth_pxe_bind(struct udevice *dev)
 	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 a5f95d4d0c..ecd4b082fd 100644
--- a/boot/bootmeth_qfw.c
+++ b/boot/bootmeth_qfw.c
@@ -89,7 +89,7 @@ static struct bootmeth_ops qfw_bootmeth_ops = {
 };
 
 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 13ec5e95e6..aabc57e635 100644
--- a/boot/bootmeth_sandbox.c
+++ b/boot/bootmeth_sandbox.c
@@ -56,7 +56,7 @@ static struct bootmeth_ops sandbox_bootmeth_ops = {
 };
 
 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 5dfa6cfce5..7a2a69fdfc 100644
--- a/doc/develop/bootstd.rst
+++ b/doc/develop/bootstd.rst
@@ -154,7 +154,7 @@ bootmeths
 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 @@ Configuration
 -------------
 
 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 @@ Available bootmeth drivers
 
 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 @@ This feature can be added as needed. Note that sandbox is a special case, since
 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 @@ the  `BOOTFLOWST_READY` state.
 
 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 de6396a7b3..127b09cd1b 100644
--- a/doc/device-tree-bindings/bootmeth.txt
+++ b/doc/device-tree-bindings/bootmeth.txt
@@ -7,8 +7,8 @@ device (bootdev). These are normally created as children of the bootstd device.
 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 @@ Example:
 		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 8706c5f499..1f1b9cba60 100644
--- a/doc/device-tree-bindings/bootstd.txt
+++ b/doc/device-tree-bindings/bootstd.txt
@@ -26,8 +26,8 @@ Example:
 		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 cad09bbec9..8590efca21 100644
--- a/doc/usage/cmd/bootflow.rst
+++ b/doc/usage/cmd/bootflow.rst
@@ -148,7 +148,7 @@ Name       mmc\@7e202000.bootdev.part_2
 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 29d8215a0c..f632d74e1d 100644
--- a/doc/usage/cmd/bootmeth.rst
+++ b/doc/usage/cmd/bootmeth.rst
@@ -45,7 +45,7 @@ The format looks like this:
 =====  ===  ==================  =================================
 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 @@ This shows listing bootmeths. All are present and in the normal order::
     => 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 @@ Now the order is changed, to include only two of them::
     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 @@ which are not::
     => 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 236cd02bd6..74c6b01e36 100644
--- a/doc/usage/cmd/dm.rst
+++ b/doc/usage/cmd/dm.rst
@@ -366,7 +366,7 @@ This example shows the abridged sandbox output::
     ..
     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 b12dfd42c9..c3df9702e8 100644
--- a/include/bootmeth.h
+++ b/include/bootmeth.h
@@ -255,7 +255,7 @@ int bootmeth_setup_iter_order(struct bootflow_iter *iter, bool include_global);
  * 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
index 2ee145871b..721ba46371 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 13e5fcd3bd..f7b4196f78 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 @@ static int eth_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
 		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 bb53bab0c0..2b5f87d7f0 100644
--- a/test/boot/bootflow.c
+++ b/test/boot/bootflow.c
@@ -57,7 +57,7 @@ static int bootflow_cmd(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_glob(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_glob(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_scan_e(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_scan_e(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_info(struct unit_test_state *uts)
 	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 @@ static int bootflow_scan_boot(struct unit_test_state *uts)
 	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 @@ static int bootflow_iter(struct unit_test_state *uts)
 	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 @@ static int bootflow_iter(struct unit_test_state *uts)
 	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 @@ static int bootflow_iter(struct unit_test_state *uts)
 	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 @@ static int bootflow_iter(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_boot(struct unit_test_state *uts)
 	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 @@ static int bootflow_cmd_hunt_label(struct unit_test_state *uts)
 	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 0098ef3efd..e498eee036 100644
--- a/test/boot/bootmeth.c
+++ b/test/boot/bootmeth.c
@@ -21,7 +21,7 @@ static int bootmeth_cmd_list(struct unit_test_state *uts)
 	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 @@ static int bootmeth_cmd_order(struct unit_test_state *uts)
 {
 	/* 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 @@ static int bootmeth_cmd_order(struct unit_test_state *uts)
 	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 @@ static int bootmeth_cmd_order(struct unit_test_state *uts)
 	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 @@ static int bootmeth_cmd_order(struct unit_test_state *uts)
 		 "(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 @@ static int bootmeth_env(struct unit_test_state *uts)
 
 	/* 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 @@ static int bootmeth_env(struct unit_test_state *uts)
 	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();