X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fcmd_pxe.c;h=1fb75d8ae9c1dcdf03e56bf5a3de8eaddfa1bafc;hb=3f4978c713255c8406875fbdf23ffed1129bc44b;hp=b3c1f67a33022c1ad5ec21781e07d3aba76e616c;hpb=5c877b1ae0a4219ed6bd8d32cf3f7106b81ecb3b;p=karo-tx-uboot.git

diff --git a/common/cmd_pxe.c b/common/cmd_pxe.c
index b3c1f67a33..1fb75d8ae9 100644
--- a/common/cmd_pxe.c
+++ b/common/cmd_pxe.c
@@ -26,13 +26,21 @@
 
 #define MAX_TFTP_PATH_LEN 127
 
+const char *pxe_default_paths[] = {
+#ifdef CONFIG_SYS_SOC
+	"default-" CONFIG_SYS_ARCH "-" CONFIG_SYS_SOC,
+#endif
+	"default-" CONFIG_SYS_ARCH,
+	"default",
+	NULL
+};
 
 /*
  * Like getenv, but prints an error if envvar isn't defined in the
  * environment.  It always returns what getenv does, so it can be used in
  * place of getenv without changing error handling otherwise.
  */
-static char *from_env(char *envvar)
+static char *from_env(const char *envvar)
 {
 	char *ret;
 
@@ -56,37 +64,21 @@ static char *from_env(char *envvar)
  */
 static int format_mac_pxe(char *outbuf, size_t outbuf_len)
 {
-	size_t ethaddr_len;
-	char *p, *ethaddr;
-
-	ethaddr = from_env("ethaddr");
-
-	if (!ethaddr)
-		return -ENOENT;
+	uchar ethaddr[6];
 
-	ethaddr_len = strlen(ethaddr);
-
-	/*
-	 * ethaddr_len + 4 gives room for "01-", ethaddr, and a NUL byte at
-	 * the end.
-	 */
-	if (outbuf_len < ethaddr_len + 4) {
-		printf("outbuf is too small (%d < %d)\n",
-				outbuf_len, ethaddr_len + 4);
+	if (outbuf_len < 21) {
+		printf("outbuf is too small (%d < 21)\n", outbuf_len);
 
 		return -EINVAL;
 	}
 
-	strcpy(outbuf, "01-");
-
-	for (p = outbuf + 3; *ethaddr; ethaddr++, p++) {
-		if (*ethaddr == ':')
-			*p = '-';
-		else
-			*p = tolower(*ethaddr);
-	}
+	if (!eth_getenv_enetaddr_by_index("eth", eth_get_dev_index(),
+					  ethaddr))
+		return -ENOENT;
 
-	*p = '\0';
+	sprintf(outbuf, "01-%02x-%02x-%02x-%02x-%02x-%02x",
+		ethaddr[0], ethaddr[1], ethaddr[2],
+		ethaddr[3], ethaddr[4], ethaddr[5]);
 
 	return 1;
 }
@@ -96,24 +88,24 @@ static int format_mac_pxe(char *outbuf, size_t outbuf_len)
  * in. If bootfile isn't defined in the environment, return NULL, which should
  * be interpreted as "don't prepend anything to paths".
  */
-static int get_bootfile_path(char *bootfile_path, size_t bootfile_path_size)
+static int get_bootfile_path(const char *file_path, char *bootfile_path,
+			     size_t bootfile_path_size)
 {
 	char *bootfile, *last_slash;
-	size_t path_len;
+	size_t path_len = 0;
+
+	if (file_path[0] == '/')
+		goto ret;
 
 	bootfile = from_env("bootfile");
 
-	if (!bootfile) {
-		bootfile_path[0] = '\0';
-		return 1;
-	}
+	if (!bootfile)
+		goto ret;
 
 	last_slash = strrchr(bootfile, '/');
 
-	if (last_slash == NULL) {
-		bootfile_path[0] = '\0';
-		return 1;
-	}
+	if (last_slash == NULL)
+		goto ret;
 
 	path_len = (last_slash - bootfile) + 1;
 
@@ -126,11 +118,55 @@ static int get_bootfile_path(char *bootfile_path, size_t bootfile_path_size)
 
 	strncpy(bootfile_path, bootfile, path_len);
 
+ ret:
 	bootfile_path[path_len] = '\0';
 
 	return 1;
 }
 
+static int (*do_getfile)(const char *file_path, char *file_addr);
+
+static int do_get_tftp(const char *file_path, char *file_addr)
+{
+	char *tftp_argv[] = {"tftp", NULL, NULL, NULL};
+
+	tftp_argv[1] = file_addr;
+	tftp_argv[2] = (void *)file_path;
+
+	if (do_tftpb(NULL, 0, 3, tftp_argv))
+		return -ENOENT;
+
+	return 1;
+}
+
+static char *fs_argv[5];
+
+static int do_get_ext2(const char *file_path, char *file_addr)
+{
+#ifdef CONFIG_CMD_EXT2
+	fs_argv[0] = "ext2load";
+	fs_argv[3] = file_addr;
+	fs_argv[4] = (void *)file_path;
+
+	if (!do_ext2load(NULL, 0, 5, fs_argv))
+		return 1;
+#endif
+	return -ENOENT;
+}
+
+static int do_get_fat(const char *file_path, char *file_addr)
+{
+#ifdef CONFIG_CMD_FAT
+	fs_argv[0] = "fatload";
+	fs_argv[3] = file_addr;
+	fs_argv[4] = (void *)file_path;
+
+	if (!do_fat_fsload(NULL, 0, 5, fs_argv))
+		return 1;
+#endif
+	return -ENOENT;
+}
+
 /*
  * As in pxelinux, paths to files referenced from files we retrieve are
  * relative to the location of bootfile. get_relfile takes such a path and
@@ -139,15 +175,14 @@ static int get_bootfile_path(char *bootfile_path, size_t bootfile_path_size)
  *
  * Returns 1 for success, or < 0 on error.
  */
-static int get_relfile(char *file_path, void *file_addr)
+static int get_relfile(const char *file_path, void *file_addr)
 {
 	size_t path_len;
 	char relfile[MAX_TFTP_PATH_LEN+1];
 	char addr_buf[10];
-	char *tftp_argv[] = {"tftp", NULL, NULL, NULL};
 	int err;
 
-	err = get_bootfile_path(relfile, sizeof(relfile));
+	err = get_bootfile_path(file_path, relfile, sizeof(relfile));
 
 	if (err < 0)
 		return err;
@@ -169,13 +204,7 @@ static int get_relfile(char *file_path, void *file_addr)
 
 	sprintf(addr_buf, "%p", file_addr);
 
-	tftp_argv[1] = addr_buf;
-	tftp_argv[2] = relfile;
-
-	if (do_tftpb(NULL, 0, 3, tftp_argv))
-		return -ENOENT;
-
-	return 1;
+	return do_getfile(relfile, addr_buf);
 }
 
 /*
@@ -185,7 +214,7 @@ static int get_relfile(char *file_path, void *file_addr)
  *
  * Returns 1 on success, or < 0 for error.
  */
-static int get_pxe_file(char *file_path, void *file_addr)
+static int get_pxe_file(const char *file_path, void *file_addr)
 {
 	unsigned long config_file_size;
 	char *tftp_filesize;
@@ -222,7 +251,7 @@ static int get_pxe_file(char *file_path, void *file_addr)
  *
  * Returns 1 on success or < 0 on error.
  */
-static int get_pxelinux_path(char *file, void *pxefile_addr_r)
+static int get_pxelinux_path(const char *file, void *pxefile_addr_r)
 {
 	size_t base_len = strlen(PXELINUX_DIR);
 	char path[MAX_TFTP_PATH_LEN+1];
@@ -319,12 +348,13 @@ do_pxe_get(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *pxefile_addr_str;
 	unsigned long pxefile_addr_r;
-	int err;
+	int err, i = 0;
+
+	do_getfile = do_get_tftp;
 
 	if (argc != 1)
 		return CMD_RET_USAGE;
 
-
 	pxefile_addr_str = from_env("pxefile_addr_r");
 
 	if (!pxefile_addr_str)
@@ -339,16 +369,23 @@ do_pxe_get(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 * Keep trying paths until we successfully get a file we're looking
 	 * for.
 	 */
-	if (pxe_uuid_path((void *)pxefile_addr_r) > 0
-		|| pxe_mac_path((void *)pxefile_addr_r) > 0
-		|| pxe_ipaddr_paths((void *)pxefile_addr_r) > 0
-		|| get_pxelinux_path("default", (void *)pxefile_addr_r) > 0) {
-
+	if (pxe_uuid_path((void *)pxefile_addr_r) > 0 ||
+	    pxe_mac_path((void *)pxefile_addr_r) > 0 ||
+	    pxe_ipaddr_paths((void *)pxefile_addr_r) > 0) {
 		printf("Config file found\n");
 
 		return 0;
 	}
 
+	while (pxe_default_paths[i]) {
+		if (get_pxelinux_path(pxe_default_paths[i],
+				      (void *)pxefile_addr_r) > 0) {
+			printf("Config file found\n");
+			return 0;
+		}
+		i++;
+	}
+
 	printf("Config file not found\n");
 
 	return 1;
@@ -361,7 +398,7 @@ do_pxe_get(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  *
  * Returns 1 on success or < 0 on error.
  */
-static int get_relfile_envaddr(char *file_path, char *envaddr_name)
+static int get_relfile_envaddr(const char *file_path, const char *envaddr_name)
 {
 	unsigned long file_addr;
 	char *envaddr;
@@ -408,12 +445,17 @@ static int get_relfile_envaddr(char *file_path, char *envaddr_name)
  * list - lets these form a list, which a pxe_menu struct will hold.
  */
 struct pxe_label {
+	char num[4];
 	char *name;
+	char *menu;
 	char *kernel;
 	char *append;
 	char *initrd;
+	char *fdt;
+	int ipappend;
 	int attempted;
 	int localboot;
+	int localboot_val;
 	struct list_head list;
 };
 
@@ -479,6 +521,9 @@ static void label_destroy(struct pxe_label *label)
 	if (label->initrd)
 		free(label->initrd);
 
+	if (label->fdt)
+		free(label->fdt);
+
 	free(label);
 }
 
@@ -491,17 +536,9 @@ static void label_destroy(struct pxe_label *label)
 static void label_print(void *data)
 {
 	struct pxe_label *label = data;
+	const char *c = label->menu ? label->menu : label->name;
 
-	printf("Label: %s\n", label->name);
-
-	if (label->kernel)
-		printf("\tkernel: %s\n", label->kernel);
-
-	if (label->append)
-		printf("\tappend: %s\n", label->append);
-
-	if (label->initrd)
-		printf("\tinitrd: %s\n", label->initrd);
+	printf("%s:\t%s\n", label->num, c);
 }
 
 /*
@@ -515,33 +552,19 @@ static void label_print(void *data)
  */
 static int label_localboot(struct pxe_label *label)
 {
-	char *localcmd, *dupcmd;
-	int ret;
+	char *localcmd;
 
 	localcmd = from_env("localcmd");
 
 	if (!localcmd)
 		return -ENOENT;
 
-	/*
-	 * dup the command to avoid any issues with the version of it existing
-	 * in the environment changing during the execution of the command.
-	 */
-	dupcmd = strdup(localcmd);
-
-	if (!dupcmd)
-		return -ENOMEM;
-
 	if (label->append)
 		setenv("bootargs", label->append);
 
-	printf("running: %s\n", dupcmd);
-
-	ret = run_command(dupcmd, 0);
+	debug("running: %s\n", localcmd);
 
-	free(dupcmd);
-
-	return ret;
+	return run_command_list(localcmd, strlen(localcmd), 0);
 }
 
 /*
@@ -559,34 +582,43 @@ static int label_localboot(struct pxe_label *label)
  * If the label specifies an 'append' line, its contents will overwrite that
  * of the 'bootargs' environment variable.
  */
-static void label_boot(struct pxe_label *label)
+static int label_boot(struct pxe_label *label)
 {
 	char *bootm_argv[] = { "bootm", NULL, NULL, NULL, NULL };
+	char initrd_str[22];
+	char mac_str[29] = "";
+	char ip_str[68] = "";
+	char *bootargs;
 	int bootm_argc = 3;
+	int len = 0;
 
 	label_print(label);
 
 	label->attempted = 1;
 
 	if (label->localboot) {
-		label_localboot(label);
-		return;
+		if (label->localboot_val >= 0)
+			label_localboot(label);
+		return 0;
 	}
 
 	if (label->kernel == NULL) {
 		printf("No kernel given, skipping %s\n",
 				label->name);
-		return;
+		return 1;
 	}
 
 	if (label->initrd) {
 		if (get_relfile_envaddr(label->initrd, "ramdisk_addr_r") < 0) {
 			printf("Skipping %s for failure retrieving initrd\n",
 					label->name);
-			return;
+			return 1;
 		}
 
-		bootm_argv[2] = getenv("ramdisk_addr_r");
+		bootm_argv[2] = initrd_str;
+		strcpy(bootm_argv[2], getenv("ramdisk_addr_r"));
+		strcat(bootm_argv[2], ":");
+		strcat(bootm_argv[2], getenv("filesize"));
 	} else {
 		bootm_argv[2] = "-";
 	}
@@ -594,24 +626,81 @@ static void label_boot(struct pxe_label *label)
 	if (get_relfile_envaddr(label->kernel, "kernel_addr_r") < 0) {
 		printf("Skipping %s for failure retrieving kernel\n",
 				label->name);
-		return;
+		return 1;
+	}
+
+	if (label->ipappend & 0x1) {
+		sprintf(ip_str, " ip=%s:%s:%s:%s",
+			getenv("ipaddr"), getenv("serverip"),
+			getenv("gatewayip"), getenv("netmask"));
+		len += strlen(ip_str);
+	}
+
+	if (label->ipappend & 0x2) {
+		int err;
+		strcpy(mac_str, " BOOTIF=");
+		err = format_mac_pxe(mac_str + 8, sizeof(mac_str) - 8);
+		if (err < 0)
+			mac_str[0] = '\0';
+		len += strlen(mac_str);
 	}
 
 	if (label->append)
-		setenv("bootargs", label->append);
+		len += strlen(label->append);
+
+	if (len) {
+		bootargs = malloc(len + 1);
+		if (!bootargs)
+			return 1;
+		bootargs[0] = '\0';
+		if (label->append)
+			strcpy(bootargs, label->append);
+		strcat(bootargs, ip_str);
+		strcat(bootargs, mac_str);
+
+		setenv("bootargs", bootargs);
+		printf("append: %s\n", bootargs);
+
+		free(bootargs);
+	}
 
 	bootm_argv[1] = getenv("kernel_addr_r");
 
 	/*
-	 * fdt usage is optional.  If there is an fdt_addr specified, we will
-	 * pass it along to bootm, and adjust argc appropriately.
+	 * fdt usage is optional:
+	 * It handles the following scenarios. All scenarios are exclusive
+	 *
+	 * Scenario 1: If fdt_addr_r specified and "fdt" label is defined in
+	 * pxe file, retrieve fdt blob from server. Pass fdt_addr_r to bootm,
+	 * and adjust argc appropriately.
+	 *
+	 * Scenario 2: If there is an fdt_addr specified, pass it along to
+	 * bootm, and adjust argc appropriately.
+	 *
+	 * Scenario 3: fdt blob is not available.
 	 */
-	bootm_argv[3] = getenv("fdt_addr");
+	bootm_argv[3] = getenv("fdt_addr_r");
+
+	/* if fdt label is defined then get fdt from server */
+	if (bootm_argv[3] && label->fdt) {
+		if (get_relfile_envaddr(label->fdt, "fdt_addr_r") < 0) {
+			printf("Skipping %s for failure retrieving fdt\n",
+					label->name);
+			return 1;
+		}
+	} else
+		bootm_argv[3] = getenv("fdt_addr");
 
 	if (bootm_argv[3])
 		bootm_argc = 4;
 
 	do_bootm(NULL, 0, bootm_argc, bootm_argv);
+
+#ifdef CONFIG_CMD_BOOTZ
+	/* Try booting a zImage if do_bootm returns */
+	do_bootz(NULL, 0, bootm_argc, bootm_argv);
+#endif
+	return 1;
 }
 
 /*
@@ -626,12 +715,16 @@ enum token_type {
 	T_TIMEOUT,
 	T_LABEL,
 	T_KERNEL,
+	T_LINUX,
 	T_APPEND,
 	T_INITRD,
 	T_LOCALBOOT,
 	T_DEFAULT,
 	T_PROMPT,
 	T_INCLUDE,
+	T_FDT,
+	T_ONTIMEOUT,
+	T_IPAPPEND,
 	T_INVALID
 };
 
@@ -654,10 +747,14 @@ static const struct token keywords[] = {
 	{"prompt", T_PROMPT},
 	{"label", T_LABEL},
 	{"kernel", T_KERNEL},
+	{"linux", T_LINUX},
 	{"localboot", T_LOCALBOOT},
 	{"append", T_APPEND},
 	{"initrd", T_INITRD},
 	{"include", T_INCLUDE},
+	{"fdt", T_FDT},
+	{"ontimeout", T_ONTIMEOUT,},
+	{"ipappend", T_IPAPPEND,},
 	{NULL, T_INVALID}
 };
 
@@ -848,7 +945,6 @@ static int parse_integer(char **c, int *dst)
 {
 	struct token t;
 	char *s = *c;
-	unsigned long temp;
 
 	get_token(c, &t, L_SLITERAL);
 
@@ -857,12 +953,7 @@ static int parse_integer(char **c, int *dst)
 		return -EINVAL;
 	}
 
-	if (strict_strtoul(t.val, 10, &temp) < 0) {
-		printf("Expected unsigned integer: %s\n", t.val);
-		return -EINVAL;
-	}
-
-	*dst = (int)temp;
+	*dst = simple_strtol(t.val, NULL, 10);
 
 	free(t.val);
 
@@ -961,14 +1052,15 @@ static int parse_label_menu(char **c, struct pxe_menu *cfg,
 
 	switch (t.type) {
 	case T_DEFAULT:
-		if (cfg->default_label)
-			free(cfg->default_label);
-
-		cfg->default_label = strdup(label->name);
+		if (!cfg->default_label)
+			cfg->default_label = strdup(label->name);
 
 		if (!cfg->default_label)
 			return -ENOMEM;
 
+		break;
+	case T_LABEL:
+		parse_sliteral(c, &label->menu);
 		break;
 	default:
 		printf("Ignoring malformed menu command: %.*s\n",
@@ -991,6 +1083,7 @@ static int parse_label_menu(char **c, struct pxe_menu *cfg,
 static int parse_label(char **c, struct pxe_menu *cfg)
 {
 	struct token t;
+	int len;
 	char *s = *c;
 	struct pxe_label *label;
 	int err;
@@ -1019,19 +1112,42 @@ static int parse_label(char **c, struct pxe_menu *cfg)
 			break;
 
 		case T_KERNEL:
+		case T_LINUX:
 			err = parse_sliteral(c, &label->kernel);
 			break;
 
 		case T_APPEND:
 			err = parse_sliteral(c, &label->append);
+			if (label->initrd)
+				break;
+			s = strstr(label->append, "initrd=");
+			if (!s)
+				break;
+			s += 7;
+			len = (int)(strchr(s, ' ') - s);
+			label->initrd = malloc(len + 1);
+			strncpy(label->initrd, s, len);
+			label->initrd[len] = '\0';
+
 			break;
 
 		case T_INITRD:
-			err = parse_sliteral(c, &label->initrd);
+			if (!label->initrd)
+				err = parse_sliteral(c, &label->initrd);
+			break;
+
+		case T_FDT:
+			if (!label->fdt)
+				err = parse_sliteral(c, &label->fdt);
 			break;
 
 		case T_LOCALBOOT:
-			err = parse_integer(c, &label->localboot);
+			label->localboot = 1;
+			err = parse_integer(c, &label->localboot_val);
+			break;
+
+		case T_IPAPPEND:
+			err = parse_integer(c, &label->ipappend);
 			break;
 
 		case T_EOL:
@@ -1087,6 +1203,7 @@ static int parse_pxefile_top(char *p, struct pxe_menu *cfg, int nest_level)
 		err = 0;
 		switch (t.type) {
 		case T_MENU:
+			cfg->prompt = 1;
 			err = parse_menu(&p, cfg, b, nest_level);
 			break;
 
@@ -1099,6 +1216,7 @@ static int parse_pxefile_top(char *p, struct pxe_menu *cfg, int nest_level)
 			break;
 
 		case T_DEFAULT:
+		case T_ONTIMEOUT:
 			err = parse_sliteral(&p, &label_name);
 
 			if (label_name) {
@@ -1110,8 +1228,13 @@ static int parse_pxefile_top(char *p, struct pxe_menu *cfg, int nest_level)
 
 			break;
 
+		case T_INCLUDE:
+			err = handle_include(&p, b + ALIGN(strlen(b), 4), cfg,
+							nest_level + 1);
+			break;
+
 		case T_PROMPT:
-			err = parse_integer(&p, &cfg->prompt);
+			eol_or_eof(&p);
 			break;
 
 		case T_EOL:
@@ -1194,11 +1317,14 @@ static struct menu *pxe_menu_to_menu(struct pxe_menu *cfg)
 	struct list_head *pos;
 	struct menu *m;
 	int err;
+	int i = 1;
+	char *default_num = NULL;
 
 	/*
 	 * Create a menu and add items for all the labels.
 	 */
-	m = menu_create(cfg->title, cfg->timeout, cfg->prompt, label_print);
+	m = menu_create(cfg->title, cfg->timeout, cfg->prompt, label_print,
+			NULL, NULL);
 
 	if (!m)
 		return NULL;
@@ -1206,18 +1332,23 @@ static struct menu *pxe_menu_to_menu(struct pxe_menu *cfg)
 	list_for_each(pos, &cfg->labels) {
 		label = list_entry(pos, struct pxe_label, list);
 
-		if (menu_item_add(m, label->name, label) != 1) {
+		sprintf(label->num, "%d", i++);
+		if (menu_item_add(m, label->num, label) != 1) {
 			menu_destroy(m);
 			return NULL;
 		}
+		if (cfg->default_label &&
+		    (strcmp(label->name, cfg->default_label) == 0))
+			default_num = label->num;
+
 	}
 
 	/*
 	 * After we've created items for each label in the menu, set the
 	 * menu's default label if one was specified.
 	 */
-	if (cfg->default_label) {
-		err = menu_default_set(m, cfg->default_label);
+	if (default_num) {
+		err = menu_default_set(m, default_num);
 		if (err != 1) {
 			if (err != -ENOENT) {
 				menu_destroy(m);
@@ -1284,10 +1415,13 @@ static void handle_pxe_menu(struct pxe_menu *cfg)
 	 * we give up.
 	 */
 
-	if (err == 1)
-		label_boot(choice);
-	else if (err != -ENOENT)
+	if (err == 1) {
+		err = label_boot(choice);
+		if (!err)
+			return;
+	} else if (err != -ENOENT) {
 		return;
+	}
 
 	boot_unattempted_labels(cfg);
 }
@@ -1304,6 +1438,8 @@ do_pxe_boot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	struct pxe_menu *cfg;
 	char *pxefile_addr_str;
 
+	do_getfile = do_get_tftp;
+
 	if (argc == 1) {
 		pxefile_addr_str = from_env("pxefile_addr_r");
 		if (!pxefile_addr_str)
@@ -1364,3 +1500,86 @@ U_BOOT_CMD(
 	"get - try to retrieve a pxe file using tftp\npxe "
 	"boot [pxefile_addr_r] - boot from the pxe file at pxefile_addr_r\n"
 );
+
+/*
+ * Boots a system using a local disk syslinux/extlinux file
+ *
+ * Returns 0 on success, 1 on error.
+ */
+int do_sysboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned long pxefile_addr_r;
+	struct pxe_menu *cfg;
+	char *pxefile_addr_str;
+	char *filename;
+	int prompt = 0;
+
+	if (strstr(argv[1], "-p")) {
+		prompt = 1;
+		argc--;
+		argv++;
+	}
+
+	if (argc < 4)
+		return cmd_usage(cmdtp);
+
+	if (argc < 5) {
+		pxefile_addr_str = from_env("pxefile_addr_r");
+		if (!pxefile_addr_str)
+			return 1;
+	} else {
+		pxefile_addr_str = argv[4];
+	}
+
+	if (argc < 6)
+		filename = getenv("bootfile");
+	else {
+		filename = argv[5];
+		setenv("bootfile", filename);
+	}
+
+	if (strstr(argv[3], "ext2"))
+		do_getfile = do_get_ext2;
+	else if (strstr(argv[3], "fat"))
+		do_getfile = do_get_fat;
+	else {
+		printf("Invalid filesystem: %s\n", argv[3]);
+		return 1;
+	}
+	fs_argv[1] = argv[1];
+	fs_argv[2] = argv[2];
+
+	if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
+		printf("Invalid pxefile address: %s\n", pxefile_addr_str);
+		return 1;
+	}
+
+	if (get_pxe_file(filename, (void *)pxefile_addr_r) < 0) {
+		printf("Error reading config file\n");
+		return 1;
+	}
+
+	cfg = parse_pxefile((char *)(pxefile_addr_r));
+
+	if (cfg == NULL) {
+		printf("Error parsing config file\n");
+		return 1;
+	}
+
+	if (prompt)
+		cfg->prompt = 1;
+
+	handle_pxe_menu(cfg);
+
+	destroy_pxe_menu(cfg);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	sysboot, 7, 1, do_sysboot,
+	"command to get and boot from syslinux files",
+	"[-p] <interface> <dev[:part]> <ext2|fat> [addr] [filename]\n"
+	"    - load and parse syslinux menu file 'filename' from ext2 or fat\n"
+	"      filesystem on 'dev' on 'interface' to address 'addr'"
+);