Merge branch '2022-10-11-assorted-fixes-and-updates'

- Assorted code cleanups and fixes, along with two new commands.

37 files changed, 749 insertions, 57 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 3377866..cb4d445 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -786,6 +786,11 @@ M:	Simon Glass <sjg@chromium.org>
 S:	Maintained
 F:	tools/buildman/
 
+CAT
+M:	Roger Knecht <rknecht@pm.me>
+S:	Maintained
+F:	cmd/cat.c
+
 CFI FLASH
 M:	Stefan Roese <sr@denx.de>
 S:	Maintained
@@ -1514,6 +1519,13 @@ M:	Max Filippov <jcmvbkbc@gmail.com>
 S:	Maintained
 F:	arch/xtensa/
 
+XXD
+M:	Roger Knecht <rknecht@pm.me>
+S:	Maintained
+F:	cmd/xxd.c
+F:	doc/usage/cmd/xxd.rst
+F:	test/py/tests/test_xxd/
+
 THE REST
 M:	Tom Rini <trini@konsulko.com>
 L:	u-boot@lists.denx.de
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index de7a218..d2db1ea 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -443,6 +443,10 @@
 	sandbox_tee {
 		compatible = "sandbox,tee";
 	};
+
+	thermal {
+		compatible = "sandbox,thermal";
+	};
 };
 
 &cros_ec {
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index a7b49f3..b853e13 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -1694,6 +1694,10 @@
 			compatible = "sandbox,regmap_test";
 		};
 	};
+
+	thermal {
+		compatible = "sandbox,thermal";
+	};
 };
 
 #include "sandbox_pmic.dtsi"
diff --git a/boot/image-pre-load.c b/boot/image-pre-load.c
index 5ab9ae1..b504ab4 100644
--- a/boot/image-pre-load.c
+++ b/boot/image-pre-load.c
@@ -11,49 +11,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #include <u-boot/sha256.h>
 
-#define IMAGE_PRE_LOAD_SIG_MAGIC		0x55425348
-#define IMAGE_PRE_LOAD_SIG_OFFSET_MAGIC		0
-#define IMAGE_PRE_LOAD_SIG_OFFSET_IMG_LEN	4
-#define IMAGE_PRE_LOAD_SIG_OFFSET_SIG		8
-
-#define IMAGE_PRE_LOAD_PATH			"/image/pre-load/sig"
-#define IMAGE_PRE_LOAD_PROP_ALGO_NAME		"algo-name"
-#define IMAGE_PRE_LOAD_PROP_PADDING_NAME	"padding-name"
-#define IMAGE_PRE_LOAD_PROP_SIG_SIZE		"signature-size"
-#define IMAGE_PRE_LOAD_PROP_PUBLIC_KEY		"public-key"
-#define IMAGE_PRE_LOAD_PROP_MANDATORY		"mandatory"
-
-/*
- * Information in the device-tree about the signature in the header
- */
-struct image_sig_info {
-	char *algo_name;	/* Name of the algo (eg: sha256,rsa2048) */
-	char *padding_name;	/* Name of the padding */
-	u8 *key;		/* Public signature key */
-	int key_len;		/* Length of the public key */
-	u32 sig_size;		/* size of the signature (in the header) */
-	int mandatory;		/* Set if the signature is mandatory */
-
-	struct image_sign_info sig_info; /* Signature info */
-};
-
-/*
- * Header of the signature header
- */
-struct sig_header_s {
-	u32 magic;
-	u32 version;
-	u32 header_size;
-	u32 image_size;
-	u32 offset_img_sig;
-	u32 flags;
-	u32 reserved0;
-	u32 reserved1;
-	u8 sha256_img_sig[SHA256_SUM_LEN];
-};
-
-#define SIG_HEADER_LEN			(sizeof(struct sig_header_s))
-
 /*
  * Offset of the image
  *
@@ -76,6 +33,7 @@ static int image_pre_load_sig_setup(struct image_sig_info *info)
 	const u32 *sig_size;
 	int key_len;
 	int node, ret = 0;
+	char *sig_info_path = NULL;
 
 	if (!info) {
 		log_err("ERROR: info is NULL for image pre-load sig check\n");
@@ -85,7 +43,11 @@ static int image_pre_load_sig_setup(struct image_sig_info *info)
 
 	memset(info, 0, sizeof(*info));
 
-	node = fdt_path_offset(gd_fdt_blob(), IMAGE_PRE_LOAD_PATH);
+	sig_info_path = env_get("pre_load_sig_info_path");
+	if (!sig_info_path)
+		sig_info_path = IMAGE_PRE_LOAD_PATH;
+
+	node = fdt_path_offset(gd_fdt_blob(), sig_info_path);
 	if (node < 0) {
 		log_info("INFO: no info for image pre-load sig check\n");
 		ret = 1;
diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c
index a364fa8..d5c215a 100644
--- a/boot/pxe_utils.c
+++ b/boot/pxe_utils.c
@@ -380,6 +380,7 @@ err:
 
 /**
  * label_boot_fdtoverlay() - Loads fdt overlays specified in 'fdtoverlays'
+ * or 'devicetree-overlay'
  *
  * @ctx: PXE context
  * @label: Label to process
@@ -809,6 +810,7 @@ static const struct token keywords[] = {
 	{"devicetreedir", T_FDTDIR},
 	{"fdtdir", T_FDTDIR},
 	{"fdtoverlays", T_FDTOVERLAYS},
+	{"devicetree-overlay", T_FDTOVERLAYS},
 	{"ontimeout", T_ONTIMEOUT,},
 	{"ipappend", T_IPAPPEND,},
 	{"background", T_BACKGROUND,},
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6f00bd9..49247a4 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -469,6 +469,11 @@ config CMD_XIMG
 	help
 	  Extract a part of a multi-image.
 
+config CMD_XXD
+	bool "xxd"
+	help
+	  Print file as hexdump to standard output
+
 config CMD_SPL
 	bool "spl export - Export boot information for Falcon boot"
 	depends on SPL
@@ -1449,6 +1454,12 @@ config DEFAULT_SPI_MODE
 	depends on CMD_SPI
 	default 0
 
+config CMD_TEMPERATURE
+	bool "temperature - display the temperature from thermal sensors"
+	depends on DM_THERMAL
+	help
+	  Provides a way to list thermal sensors and to get their readings.
+
 config CMD_TSI148
 	bool "tsi148 - Command to access tsi148 device"
 	help
@@ -1533,6 +1544,11 @@ endmenu
 
 menu "Shell scripting commands"
 
+config CMD_CAT
+	bool "cat"
+	help
+	  Print file to standard output
+
 config CMD_ECHO
 	bool "echo"
 	default y
diff --git a/cmd/Makefile b/cmd/Makefile
index cf6ce1b..c95e09d 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_CMD_BOOTZ) += bootz.o
 obj-$(CONFIG_CMD_BOOTI) += booti.o
 obj-$(CONFIG_CMD_BTRFS) += btrfs.o
 obj-$(CONFIG_CMD_BUTTON) += button.o
+obj-$(CONFIG_CMD_CAT) += cat.o
 obj-$(CONFIG_CMD_CACHE) += cache.o
 obj-$(CONFIG_CMD_CBFS) += cbfs.o
 obj-$(CONFIG_CMD_CLK) += clk.o
@@ -155,6 +156,7 @@ obj-$(CONFIG_CMD_STRINGS) += strings.o
 obj-$(CONFIG_CMD_SMC) += smccc.o
 obj-$(CONFIG_CMD_SYSBOOT) += sysboot.o
 obj-$(CONFIG_CMD_STACKPROTECTOR_TEST) += stackprot_test.o
+obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o
 obj-$(CONFIG_CMD_TERMINAL) += terminal.o
 obj-$(CONFIG_CMD_TIME) += time.o
 obj-$(CONFIG_CMD_TIMER) += timer.o
@@ -184,6 +186,7 @@ obj-$(CONFIG_CMD_USB_SDP) += usb_gadget_sdp.o
 obj-$(CONFIG_CMD_THOR_DOWNLOAD) += thordown.o
 obj-$(CONFIG_CMD_VBE) += vbe.o
 obj-$(CONFIG_CMD_XIMG) += ximg.o
+obj-$(CONFIG_CMD_XXD) += xxd.o
 obj-$(CONFIG_CMD_YAFFS2) += yaffs2.o
 obj-$(CONFIG_CMD_SPL) += spl.o
 obj-$(CONFIG_CMD_W1) += w1.o
diff --git a/cmd/cat.c b/cmd/cat.c
new file mode 100644
index 0000000..1273a26
--- /dev/null
+++ b/cmd/cat.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022
+ * Roger Knecht <rknecht@pm.de>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <fs.h>
+#include <malloc.h>
+#include <mapmem.h>
+
+static int do_cat(struct cmd_tbl *cmdtp, int flag, int argc,
+		  char *const argv[])
+{
+	char *ifname;
+	char *dev;
+	char *file;
+	char *buffer;
+	phys_addr_t addr;
+	loff_t file_size;
+
+	if (argc < 4)
+		return CMD_RET_USAGE;
+
+	ifname = argv[1];
+	dev = argv[2];
+	file = argv[3];
+
+	// check file exists
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (!fs_exists(file)) {
+		log_err("File does not exist: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// get file size
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (fs_size(file, &file_size)) {
+		log_err("Cannot read file size: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// allocate memory for file content
+	buffer = calloc(sizeof(char), file_size + 1);
+	if (!buffer) {
+		log_err("Out of memory\n");
+		return CMD_RET_FAILURE;
+	}
+
+	// map pointer to system memory
+	addr = map_to_sysmem(buffer);
+
+	// read file to memory
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (fs_read(file, addr, 0, 0, &file_size)) {
+		log_err("Cannot read file: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// print file content
+	buffer[file_size] = '\0';
+	puts(buffer);
+
+	free(buffer);
+
+	return 0;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char cat_help_text[] =
+	"<interface> <dev[:part]> <file>\n"
+	"  - Print file from 'dev' on 'interface' to standard output\n";
+#endif
+
+U_BOOT_CMD(cat, 4, 1, do_cat,
+	   "Print file to standard output",
+	   cat_help_text
+);
diff --git a/cmd/temperature.c b/cmd/temperature.c
new file mode 100644
index 0000000..420965d
--- /dev/null
+++ b/cmd/temperature.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * Copyright (c) 2022 Sartura Ltd.
+ * Written by Robert Marko <robert.marko@sartura.hr>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <thermal.h>
+
+#define LIMIT_DEVNAME	30
+
+static int do_get(struct cmd_tbl *cmdtp, int flag, int argc,
+		  char *const argv[])
+{
+	struct udevice *dev;
+	int ret, temp;
+
+	if (argc < 2) {
+		printf("thermal device not selected\n");
+		return CMD_RET_FAILURE;
+	}
+
+	ret = uclass_get_device_by_name(UCLASS_THERMAL, argv[1], &dev);
+	if (ret) {
+		printf("thermal device not found\n");
+		return CMD_RET_FAILURE;
+	}
+
+	ret = thermal_get_temp(dev, &temp);
+	if (ret)
+		return CMD_RET_FAILURE;
+
+	printf("%s: %d C\n", dev->name, temp);
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_list(struct cmd_tbl *cmdtp, int flag, int argc,
+		   char *const argv[])
+{
+	struct udevice *dev;
+
+	printf("| %-*.*s| %-*.*s| %s\n",
+	       LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
+	       LIMIT_DEVNAME, LIMIT_DEVNAME, "Driver",
+	       "Parent");
+
+	uclass_foreach_dev_probe(UCLASS_THERMAL, dev) {
+		printf("| %-*.*s| %-*.*s| %s\n",
+		       LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
+		       LIMIT_DEVNAME, LIMIT_DEVNAME, dev->driver->name,
+		       dev->parent->name);
+	}
+
+	return CMD_RET_SUCCESS;
+}
+
+static struct cmd_tbl temperature_subcmd[] = {
+	U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
+	U_BOOT_CMD_MKENT(get, 2, 1, do_get, "", ""),
+};
+
+static int do_temperature(struct cmd_tbl *cmdtp, int flag, int argc,
+			  char *const argv[])
+{
+	struct cmd_tbl *cmd;
+
+	argc--;
+	argv++;
+
+	cmd = find_cmd_tbl(argv[0], temperature_subcmd, ARRAY_SIZE(temperature_subcmd));
+	if (!cmd || argc > cmd->maxargs)
+		return CMD_RET_USAGE;
+
+	return cmd->cmd(cmdtp, flag, argc, argv);
+}
+
+U_BOOT_CMD(temperature, CONFIG_SYS_MAXARGS, 1, do_temperature,
+	   "thermal sensor temperature",
+	   "list\t\tshow list of temperature sensors\n"
+	   "get [thermal device name]\tprint temperature in degrees C"
+);
diff --git a/cmd/xxd.c b/cmd/xxd.c
new file mode 100644
index 0000000..742a85c
--- /dev/null
+++ b/cmd/xxd.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022
+ * Roger Knecht <rknecht@pm.de>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <display_options.h>
+#include <fs.h>
+#include <malloc.h>
+#include <mapmem.h>
+
+static int do_xxd(struct cmd_tbl *cmdtp, int flag, int argc,
+		  char *const argv[])
+{
+	char *ifname;
+	char *dev;
+	char *file;
+	char *buffer;
+	phys_addr_t addr;
+	loff_t file_size;
+
+	if (argc < 4)
+		return CMD_RET_USAGE;
+
+	ifname = argv[1];
+	dev = argv[2];
+	file = argv[3];
+
+	// check file exists
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (!fs_exists(file)) {
+		log_err("File does not exist: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// get file size
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (fs_size(file, &file_size)) {
+		log_err("Cannot read file size: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// allocate memory for file content
+	buffer = calloc(sizeof(char), file_size);
+	if (!buffer) {
+		log_err("Out of memory\n");
+		return CMD_RET_FAILURE;
+	}
+
+	// map pointer to system memory
+	addr = map_to_sysmem(buffer);
+
+	// read file to memory
+	if (fs_set_blk_dev(ifname, dev, FS_TYPE_ANY))
+		return CMD_RET_FAILURE;
+
+	if (fs_read(file, addr, 0, 0, &file_size)) {
+		log_err("Cannot read file: ifname=%s dev=%s file=%s\n", ifname, dev, file);
+		return CMD_RET_FAILURE;
+	}
+
+	// print file content
+	print_buffer(0, buffer, sizeof(char), file_size, 0);
+
+	free(buffer);
+
+	return 0;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char xxd_help_text[] =
+	"<interface> <dev[:part]> <file>\n"
+	"  - Print file from 'dev' on 'interface' as hexdump to standard output\n";
+#endif
+
+U_BOOT_CMD(xxd, 4, 1, do_xxd,
+	   "Print file as hexdump to standard output",
+	   xxd_help_text
+);
diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig
index b20b181..ade1505 100644
--- a/configs/sandbox64_defconfig
+++ b/configs/sandbox64_defconfig
@@ -22,6 +22,7 @@ CONFIG_CONSOLE_RECORD=y
 CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_CMD_CAT=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTZ=y
@@ -54,6 +55,7 @@ CONFIG_CMD_READ=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
+CONFIG_CMD_XXD=y
 CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_TFTPSRV=y
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index df6a28e..1f821cd 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -36,6 +36,7 @@ CONFIG_LOG_DEFAULT_LEVEL=6
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_STACKPROTECTOR=y
 CONFIG_ANDROID_AB=y
+CONFIG_CMD_CAT=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTM_PRE_LOAD=y
@@ -60,6 +61,7 @@ CONFIG_CMD_MEM_SEARCH=y
 CONFIG_CMD_MX_CYCLIC=y
 CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_UNZIP=y
+CONFIG_CMD_XXD=y
 CONFIG_CMD_BIND=y
 CONFIG_CMD_DEMO=y
 CONFIG_CMD_GPIO=y
@@ -77,6 +79,7 @@ CONFIG_CMD_PCI=y
 CONFIG_CMD_READ=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_AXI=y
 CONFIG_CMD_SETEXPR_FMT=y
@@ -279,6 +282,7 @@ CONFIG_SYSINFO=y
 CONFIG_SYSINFO_SANDBOX=y
 CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index a2eb7af..fdd7b35 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -45,6 +45,7 @@ CONFIG_CMD_OSD=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_TFTPPUT=y
@@ -186,6 +187,7 @@ CONFIG_SYSINFO=y
 CONFIG_SYSINFO_SANDBOX=y
 CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig
index 8bf10bb..8e69f08 100644
--- a/configs/sandbox_noinst_defconfig
+++ b/configs/sandbox_noinst_defconfig
@@ -62,6 +62,7 @@ CONFIG_CMD_OSD=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_TFTPPUT=y
@@ -213,6 +214,7 @@ CONFIG_SYSINFO_SANDBOX=y
 CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index c33f171..af5092b 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -62,6 +62,7 @@ CONFIG_CMD_OSD=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_TFTPPUT=y
@@ -216,6 +217,7 @@ CONFIG_SYSINFO_SANDBOX=y
 CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/configs/sandbox_vpl_defconfig b/configs/sandbox_vpl_defconfig
index be8186e..c31adbb 100644
--- a/configs/sandbox_vpl_defconfig
+++ b/configs/sandbox_vpl_defconfig
@@ -74,6 +74,7 @@ CONFIG_CMD_OSD=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_BOOTP_DNS2=y
 CONFIG_CMD_TFTPPUT=y
@@ -223,6 +224,7 @@ CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
 CONFIG_TPL_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/doc/README.pxe b/doc/README.pxe
index 75caa01..d14d2bd 100644
--- a/doc/README.pxe
+++ b/doc/README.pxe
@@ -163,6 +163,13 @@ fdtoverlays <path> [...] - if this label is chosen, use tftp to retrieve the DT
                       and then applied in the load order to the fdt blob stored at the
                       address indicated in the fdt_addr_r environment variable.
 
+devicetree-overlay <path> [...] - if this label is chosen, use tftp to retrieve the DT
+                      overlay(s) at <path>. it will be temporarily stored at the
+                      address indicated in the fdtoverlay_addr_r environment variable,
+                      and then applied in the load order to the fdt blob stored at the
+                      address indicated in the fdt_addr_r environment variable.
+                      Alias for fdtoverlays.
+
 kaslrseed           - set this label to request random number from hwrng as kaslr seed.
 
 append <string>	    - use <string> as the kernel command line when booting this
@@ -178,6 +185,11 @@ fdt <path>	    - if this label is chosen, use tftp to retrieve the fdt blob
 		      the fdt_addr_r environment variable, and that address will
 		      be passed to bootm.
 
+devicetree <path>   - if this label is chosen, use tftp to retrieve the fdt blob
+		      at <path>. it will be stored at the address indicated in
+		      the fdt_addr_r environment variable, and that address will
+		      be passed to bootm. Alias for fdt.
+
 fdtdir <path>	    - if this label is chosen, use tftp to retrieve a fdt blob
 		      relative to <path>. If the fdtfile environment variable
 		      is set, <path>/<fdtfile> is retrieved. Otherwise, the
diff --git a/doc/develop/distro.rst b/doc/develop/distro.rst
index 3ee3dac..bc72aa9 100644
--- a/doc/develop/distro.rst
+++ b/doc/develop/distro.rst
@@ -68,10 +68,10 @@ Boot Configuration Files
 
 The standard format for boot configuration files is that of extlinux.conf, as
 handled by U-Boot's "syslinux" (disk) or "pxe boot" (network). This is roughly
-as specified at BootLoaderSpec_:
+as specified at `Boot Loader Specification`_:
 
 
-... with the exceptions that the BootLoaderSpec document:
+... with the exceptions that the Boot Loader Specification document:
 
 * Prescribes a separate configuration per boot menu option, whereas U-Boot
   lumps all options into a single extlinux.conf file. Hence, U-Boot searches
@@ -81,6 +81,8 @@ as specified at BootLoaderSpec_:
 * Does not document the fdtdir option, which automatically selects the DTB to
   pass to the kernel.
 
+See also doc/README.pxe under 'pxe file format'.
+
 One example extlinux.conf generated by the Fedora installer is::
 
     # extlinux.conf generated by anaconda
@@ -115,6 +117,25 @@ One example extlinux.conf generated by the Fedora installer is::
         fdtdir /boot/dtb-3.16.0-0.rc6.git1.1.fc22.armv7hl+lpae
 
 
+One example of hand-crafted extlinux.conf::
+
+   menu title Select kernel
+   timeout 100
+
+   label Arch with uart devicetree overlay
+       kernel /arch/Image.gz
+       initrd /arch/initramfs-linux.img
+       fdt /dtbs/arch/board.dtb
+       fdtoverlays /dtbs/arch/overlay/uart0-gpio0-1.dtbo
+       append console=ttyS0,115200 console=tty1 rw root=UUID=fc0d0284-ca84-4194-bf8a-4b9da8d66908
+
+   label Arch with uart devicetree overlay but with Boot Loader Specification keys
+       kernel /arch/Image.gz
+       initrd /arch/initramfs-linux.img
+       devicetree /dtbs/arch/board.dtb
+       devicetree-overlay /dtbs/arch/overlay/uart0-gpio0-1.dtbo
+       append console=ttyS0,115200 console=tty1 rw root=UUID=fc0d0284-ca84-4194-bf8a-4b9da8d66908
+
 Another hand-crafted network boot configuration file is::
 
     TIMEOUT 100
@@ -214,6 +235,11 @@ fdt_addr_r:
 
   A size of 1MB for the FDT/DTB seems reasonable.
 
+fdtoverlay_addr_r:
+  Mandatory. The location in RAM where DTB overlays will be temporarily
+  stored and then applied in the load order to the fdt blob stored at the
+  address indicated in the fdt_addr_r environment variable.
+
 fdtfile:
   Mandatory. the name of the DTB file for the specific board for instance
   the espressobin v5 board the value is "marvell/armada-3720-espressobin.dtb"
@@ -408,7 +434,7 @@ way in future u-boot versions.  In particular the <device type>_boot
 variables (e.g. mmc_boot, usb_boot) are a strictly internal implementation
 detail and must not be used as a public interface.
 
-.. _BootLoaderSpec: http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/
+.. _`Boot Loader Specification`: https://systemd.io/BOOT_LOADER_SPECIFICATION/
 
 .. sectionauthor:: (C) Copyright 2014 Red Hat Inc.
 .. sectionauthor:: Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
diff --git a/doc/usage/cmd/cat.rst b/doc/usage/cmd/cat.rst
new file mode 100644
index 0000000..5ef4731
--- /dev/null
+++ b/doc/usage/cmd/cat.rst
@@ -0,0 +1,49 @@
+.. SPDX-License-Identifier: GPL-2.0+:
+
+cat command
+===============
+
+Synopsis
+--------
+
+::
+
+    cat <interface> <dev[:part]> <file>
+
+Description
+-----------
+
+The cat command prints the file content to standard out.
+
+interface
+    interface for accessing the block device (mmc, sata, scsi, usb, ....)
+
+dev
+    device number
+
+part
+    partition number, defaults to 1
+
+file
+    path to file
+
+Example
+-------
+
+Here is the output for a example text file:
+
+::
+
+    => cat mmc 0:1 hello
+    hello world
+    =>
+
+Configuration
+-------------
+
+The cat command is only available if CONFIG_CMD_CAT=y.
+
+Return value
+------------
+
+The return value $? is set to 0 (true) if the file is readable, otherwise it returns a non-zero error code.
diff --git a/doc/usage/cmd/temperature.rst b/doc/usage/cmd/temperature.rst
new file mode 100644
index 0000000..a5144ec
--- /dev/null
+++ b/doc/usage/cmd/temperature.rst
@@ -0,0 +1,50 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+temperature command
+===================
+
+Synopsis
+--------
+
+::
+
+    temperature list
+    temperature get [thermal device name]
+
+Description
+-----------
+
+The *temperature* command is used to list thermal sensors and get their
+readings.
+
+The 'temperature list' command diplays the available thermal devices.
+
+The 'temperature get' command is used to get the reading in degrees C from
+the desired device which is selected by passing its device name.
+
+    thermal device name
+        device name of thermal sensor to select
+
+Example
+-------
+
+::
+
+
+    => temperature list
+    | Device                        | Driver                        | Parent
+    | tmon@610508110                | sparx5-temp                   | axi@600000000
+    =>
+    => temperature get tmon@610508110
+    tmon@610508110: 42 C
+
+Configuration
+-------------
+
+The *temperature* command is only available if CONFIG_CMD_TEMPERATURE=y.
+
+Return value
+------------
+
+The return value $? is set to 0 (true) if the command succeeded and to 1 (false)
+otherwise.
diff --git a/doc/usage/cmd/xxd.rst b/doc/usage/cmd/xxd.rst
new file mode 100644
index 0000000..0de1223
--- /dev/null
+++ b/doc/usage/cmd/xxd.rst
@@ -0,0 +1,50 @@
+.. SPDX-License-Identifier: GPL-2.0+:
+
+xxd command
+===============
+
+Synopsis
+--------
+
+::
+
+    xxd <interface> <dev[:part]> <file>
+
+Description
+-----------
+
+The xxd command prints the file content as hexdump to standard out.
+
+interface
+    interface for accessing the block device (mmc, sata, scsi, usb, ....)
+
+dev
+    device number
+
+part
+    partition number, defaults to 1
+
+file
+    path to file
+
+Example
+-------
+
+Here is the output for a example text file:
+
+::
+
+    => xxd mmc 0:1 hello
+    00000000: 68 65 6c 6c 6f 20 77 6f 72 6c 64 0a 00 01 02 03  hello world.....
+    00000010: 04 05                                            ..
+    =>
+
+Configuration
+-------------
+
+The xxd command is only available if CONFIG_CMD_XXD=y.
+
+Return value
+------------
+
+The return value $? is set to 0 (true) if the file is readable, otherwise it returns a non-zero error code.
diff --git a/doc/usage/index.rst b/doc/usage/index.rst
index d064110..9022101 100644
--- a/doc/usage/index.rst
+++ b/doc/usage/index.rst
@@ -31,6 +31,7 @@ Shell commands
    cmd/bootmeth
    cmd/button
    cmd/bootz
+   cmd/cat
    cmd/cbsysinfo
    cmd/cls
    cmd/conitrace
@@ -67,10 +68,12 @@ Shell commands
    cmd/scp03
    cmd/setexpr
    cmd/size
+   cmd/temperature
    cmd/tftpput
    cmd/true
    cmd/ums
    cmd/wdt
+   cmd/xxd
 
 Booting OS
 ----------
diff --git a/drivers/bootcount/Kconfig b/drivers/bootcount/Kconfig
index e918f74..8d6424c 100644
--- a/drivers/bootcount/Kconfig
+++ b/drivers/bootcount/Kconfig
@@ -132,7 +132,7 @@ config DM_BOOTCOUNT_PMIC_PFUZE100
 	depends on DM_PMIC_PFUZE100
 	help
 	  Enable support for the bootcounter using PMIC PFUZE100 registers.
-	  This works only, if the PMIC is not connected.
+	  This works only, if the PMIC is not connected to a battery.
 
 config DM_BOOTCOUNT_SPI_FLASH
 	bool "Support SPI flash devices as a backing store for bootcount"
diff --git a/drivers/bootcount/pmic_pfuze100.c b/drivers/bootcount/pmic_pfuze100.c
index ad3bc03..df046f1b 100644
--- a/drivers/bootcount/pmic_pfuze100.c
+++ b/drivers/bootcount/pmic_pfuze100.c
@@ -5,7 +5,7 @@
  * Philip Oberfichtner <pro@denx.de>
  *
  * A bootcount driver using the registers MEMA - MEMD on the PFUZE100.
- * This works only, if the PMIC is not connected.
+ * This works only, if the PMIC is not connected to a battery.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
index f6e2041..31678f5 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
@@ -1388,10 +1388,10 @@ static int npcm7xx_gpio_reset_persist(struct udevice *dev, unsigned int banknum,
 	dev_dbg(dev, "set gpio persist, bank %d, enable %d\n", banknum, enable);
 
 	if (enable) {
-		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD0RCR, BIT(num) | CA9C_RESET, 0);
-		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD1RCR, BIT(num) | CA9C_RESET, 0);
-		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD2RCR, BIT(num) | CA9C_RESET, 0);
-		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_CORSTC, BIT(num) | CA9C_RESET, 0);
+		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD0RCR, BIT(num), 0);
+		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD1RCR, BIT(num), 0);
+		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD2RCR, BIT(num), 0);
+		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_CORSTC, BIT(num), 0);
 	} else {
 		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD0RCR, BIT(num) | CA9C_RESET, BIT(num) | CA9C_RESET);
 		regmap_update_bits(priv->rst_regmap, NPCM7XX_RST_WD1RCR, BIT(num) | CA9C_RESET, BIT(num) | CA9C_RESET);
diff --git a/drivers/pinctrl/pinctrl-generic.c b/drivers/pinctrl/pinctrl-generic.c
index ec21d4f..8909b57 100644
--- a/drivers/pinctrl/pinctrl-generic.c
+++ b/drivers/pinctrl/pinctrl-generic.c
@@ -237,7 +237,7 @@ enum pinmux_subnode_type {
 static const char *alloc_name_with_prefix(const char *name, const char *prefix)
 {
 	if (prefix) {
-		char *name_with_prefix = malloc(strlen(prefix) + sizeof("pins"));
+		char *name_with_prefix = malloc(strlen(prefix) + strlen(name) + 1);
 		if (name_with_prefix)
 			sprintf(name_with_prefix, "%s%s", prefix, name);
 		return name_with_prefix;
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 15fe847..8acc7d2 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -4,6 +4,7 @@
 # Author: Nitin Garg <nitin.garg@freescale.com>
 
 obj-$(CONFIG_DM_THERMAL) += thermal-uclass.o
+obj-$(CONFIG_SANDBOX) += thermal_sandbox.o
 obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o
 obj-$(CONFIG_IMX_SCU_THERMAL) += imx_scu_thermal.o
 obj-$(CONFIG_TI_DRA7_THERMAL) += ti-bandgap.o
diff --git a/drivers/thermal/thermal_sandbox.c b/drivers/thermal/thermal_sandbox.c
new file mode 100644
index 0000000..acc364f
--- /dev/null
+++ b/drivers/thermal/thermal_sandbox.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022 Sartura Ltd.
+ * Written by Robert Marko <robert.marko@sartura.hr>
+ *
+ * Sandbox driver for the thermal uclass.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <thermal.h>
+
+int sandbox_thermal_get_temp(struct udevice *dev, int *temp)
+{
+	/* Simply return 100°C */
+	*temp = 100;
+
+	return 0;
+}
+
+static const struct dm_thermal_ops sandbox_thermal_ops = {
+	.get_temp = sandbox_thermal_get_temp,
+};
+
+static const struct udevice_id sandbox_thermal_ids[] = {
+	{ .compatible = "sandbox,thermal" },
+	{ }
+};
+
+U_BOOT_DRIVER(thermal_sandbox) = {
+	.name		= "thermal-sandbox",
+	.id		= UCLASS_THERMAL,
+	.of_match	= sandbox_thermal_ids,
+	.ops		= &sandbox_thermal_ops,
+	.flags		= DM_FLAG_PRE_RELOC,
+};
diff --git a/include/image.h b/include/image.h
index eb2513c..d7d6a3f 100644
--- a/include/image.h
+++ b/include/image.h
@@ -1421,6 +1421,49 @@ struct crypto_algo *image_get_crypto_algo(const char *full_name);
  */
 struct padding_algo *image_get_padding_algo(const char *name);
 
+#define IMAGE_PRE_LOAD_SIG_MAGIC		0x55425348
+#define IMAGE_PRE_LOAD_SIG_OFFSET_MAGIC		0
+#define IMAGE_PRE_LOAD_SIG_OFFSET_IMG_LEN	4
+#define IMAGE_PRE_LOAD_SIG_OFFSET_SIG		8
+
+#define IMAGE_PRE_LOAD_PATH			"/image/pre-load/sig"
+#define IMAGE_PRE_LOAD_PROP_ALGO_NAME		"algo-name"
+#define IMAGE_PRE_LOAD_PROP_PADDING_NAME	"padding-name"
+#define IMAGE_PRE_LOAD_PROP_SIG_SIZE		"signature-size"
+#define IMAGE_PRE_LOAD_PROP_PUBLIC_KEY		"public-key"
+#define IMAGE_PRE_LOAD_PROP_MANDATORY		"mandatory"
+
+/*
+ * Information in the device-tree about the signature in the header
+ */
+struct image_sig_info {
+	char *algo_name;	/* Name of the algo (eg: sha256,rsa2048) */
+	char *padding_name;	/* Name of the padding */
+	uint8_t *key;		/* Public signature key */
+	int key_len;		/* Length of the public key */
+	uint32_t sig_size;		/* size of the signature (in the header) */
+	int mandatory;		/* Set if the signature is mandatory */
+
+	struct image_sign_info sig_info; /* Signature info */
+};
+
+/*
+ * Header of the signature header
+ */
+struct sig_header_s {
+	uint32_t magic;
+	uint32_t version;
+	uint32_t header_size;
+	uint32_t image_size;
+	uint32_t offset_img_sig;
+	uint32_t flags;
+	uint32_t reserved0;
+	uint32_t reserved1;
+	uint8_t sha256_img_sig[SHA256_SUM_LEN];
+};
+
+#define SIG_HEADER_LEN			(sizeof(struct sig_header_s))
+
 /**
  * image_pre_load() - Manage pre load header
  *
diff --git a/lib/crypt/Kconfig b/lib/crypt/Kconfig
index a59d5c7..22af683 100644
--- a/lib/crypt/Kconfig
+++ b/lib/crypt/Kconfig
@@ -12,7 +12,6 @@ if CRYPT_PW
 config CRYPT_PW_SHA256
 	bool "Provide sha256crypt"
 	select SHA256
-	select SHA256_ALGO
 	help
 	  Enables support for the sha256crypt password-hashing algorithm.
 	  The prefix is "$5$".
diff --git a/test/cmd/Makefile b/test/cmd/Makefile
index 1bb02d9..b7b9bd4 100644
--- a/test/cmd/Makefile
+++ b/test/cmd/Makefile
@@ -16,3 +16,4 @@ obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o
 obj-$(CONFIG_CMD_PINMUX) += pinmux.o
 obj-$(CONFIG_CMD_PWM) += pwm.o
 obj-$(CONFIG_CMD_SETEXPR) += setexpr.o
+obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o
diff --git a/test/cmd/temperature.c b/test/cmd/temperature.c
new file mode 100644
index 0000000..2a1ea06
--- /dev/null
+++ b/test/cmd/temperature.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Executes tests for temperature command
+ *
+ * Copyright (C) 2022 Sartura Ltd.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+static int dm_test_cmd_temperature(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+
+	ut_assertok(uclass_get_device(UCLASS_THERMAL, 0, &dev));
+	ut_assertnonnull(dev);
+
+	ut_assertok(console_record_reset_enable());
+
+	/* Test that "temperature list" shows the sandbox device */
+	ut_assertok(run_command("temperature list", 0));
+	ut_assert_nextline("| Device                        | Driver                        | Parent");
+	ut_assert_nextline("| thermal                       | thermal-sandbox               | root_driver");
+	ut_assert_console_end();
+
+	/* Test that "temperature get thermal" returns expected value */
+	console_record_reset();
+	ut_assertok(run_command("temperature get thermal", 0));
+	ut_assert_nextline("thermal: 100 C");
+	ut_assert_console_end();
+
+	return 0;
+}
+
+DM_TEST(dm_test_cmd_temperature, UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);
diff --git a/test/py/tests/test_cat/conftest.py b/test/py/tests/test_cat/conftest.py
new file mode 100644
index 0000000..058fe52
--- /dev/null
+++ b/test/py/tests/test_cat/conftest.py
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+"""Fixture for cat command test
+"""
+
+import os
+import shutil
+from subprocess import check_call, CalledProcessError
+import pytest
+
+@pytest.fixture(scope='session')
+def cat_data(u_boot_config):
+    """Set up a file system to be used in cat tests
+
+    Args:
+        u_boot_config -- U-boot configuration.
+    """
+    mnt_point = u_boot_config.persistent_data_dir + '/test_cat'
+    image_path = u_boot_config.persistent_data_dir + '/cat.img'
+
+    try:
+        os.mkdir(mnt_point, mode = 0o755)
+
+        with open(mnt_point + '/hello', 'w', encoding = 'ascii') as file:
+            file.write('hello world\n')
+
+        check_call(f'virt-make-fs --partition=gpt --size=+1M --type=vfat {mnt_point} {image_path}',
+                   shell=True)
+
+        yield image_path
+    except CalledProcessError:
+        pytest.skip('Setup failed')
+    finally:
+        shutil.rmtree(mnt_point)
+        os.remove(image_path)
diff --git a/test/py/tests/test_cat/test_cat.py b/test/py/tests/test_cat/test_cat.py
new file mode 100644
index 0000000..132527b
--- /dev/null
+++ b/test/py/tests/test_cat/test_cat.py
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+""" Unit test for cat command
+"""
+
+import pytest
+
+@pytest.mark.boardspec('sandbox')
+@pytest.mark.buildconfigspec('cmd_cat')
+def test_cat(u_boot_console, cat_data):
+    """ Unit test for cat
+
+    Args:
+        u_boot_console -- U-Boot console
+        cat_data -- Path to the disk image used for testing.
+    """
+    response = u_boot_console.run_command_list([
+        f'host bind 0 {cat_data}',
+        'cat host 0 hello'])
+    assert 'hello world' in response
diff --git a/test/py/tests/test_xxd/conftest.py b/test/py/tests/test_xxd/conftest.py
new file mode 100644
index 0000000..59285aa
--- /dev/null
+++ b/test/py/tests/test_xxd/conftest.py
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+"""Fixture for xxd command test
+"""
+
+import os
+import shutil
+from subprocess import check_call, CalledProcessError
+import pytest
+
+@pytest.fixture(scope='session')
+def xxd_data(u_boot_config):
+    """Set up a file system to be used in xxd tests
+
+    Args:
+        u_boot_config -- U-boot configuration.
+    """
+    mnt_point = u_boot_config.persistent_data_dir + '/test_xxd'
+    image_path = u_boot_config.persistent_data_dir + '/xxd.img'
+
+    try:
+        os.mkdir(mnt_point, mode = 0o755)
+
+        with open(mnt_point + '/hello', 'w', encoding = 'ascii') as file:
+            file.write('hello world\n\x00\x01\x02\x03\x04\x05')
+
+        check_call(f'virt-make-fs --partition=gpt --size=+1M --type=vfat {mnt_point} {image_path}',
+                   shell=True)
+
+        yield image_path
+    except CalledProcessError:
+        pytest.skip('Setup failed')
+    finally:
+        shutil.rmtree(mnt_point)
+        os.remove(image_path)
diff --git a/test/py/tests/test_xxd/test_xxd.py b/test/py/tests/test_xxd/test_xxd.py
new file mode 100644
index 0000000..06b9cfc
--- /dev/null
+++ b/test/py/tests/test_xxd/test_xxd.py
@@ -0,0 +1,23 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+""" Unit test for xxd command
+"""
+
+import pytest
+
+@pytest.mark.boardspec('sandbox')
+@pytest.mark.buildconfigspec('cmd_xxd')
+def test_xxd(u_boot_console, xxd_data):
+    """ Unit test for xxd
+
+    Args:
+        u_boot_console -- U-Boot console
+        xxd_data -- Path to the disk image used for testing.
+    """
+    response = u_boot_console.run_command_list([
+        f'host bind 0 {xxd_data}',
+        'xxd host 0 hello'])
+
+    assert '00000000: 68 65 6c 6c 6f 20 77 6f 72 6c 64 0a 00 01 02 03  hello world.....\r\r\n' + \
+           '00000010: 04 05                                            ..' \
+           in response
diff --git a/tools/image-host.c b/tools/image-host.c
index 698adfb..0bf18df 100644
--- a/tools/image-host.c
+++ b/tools/image-host.c
@@ -17,8 +17,6 @@
 #include <openssl/pem.h>
 #include <openssl/evp.h>
 
-#define IMAGE_PRE_LOAD_PATH                             "/image/pre-load/sig"
-
 /**
  * fit_set_hash_value - set hash value in requested has node
  * @fit: pointer to the FIT format image header