Merge branch '2022-02-11-assorted-updates-and-fixes'

A partial list:
- fw_env updates, a new testcase for mkimage -o ..., nop-phy reset-gpios
  support, DFU updates, kaslr-seed support in extlinux.conf, modern
  "partitions" support in mtd device tree

Makefile

@@ -1843,7 +1843,7 @@ quiet_cmd_gen_envp = ENVP    $@
 			-I$(srctree)/arch/$(ARCH)/include \
 			$< -o $@; \
 	else \
-		echo -n >$@ ; \
+		touch $@ ; \
 	fi
 include/generated/env.in: include/generated/env.txt FORCE
 	$(call cmd,gen_envp)
@@ -1860,7 +1860,7 @@ quiet_cmd_envc = ENVC    $@
 	elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
 		echo "Missing file $(ENV_FILE_CFG)"; \
 	else \
-		echo -n >$@ ; \
+		touch $@ ; \
 	fi
 
 include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE

arch/sandbox/include/asm/acpi_table.h

@@ -6,6 +6,6 @@
 #ifndef __ASM_ACPI_TABLE_H__
 #define __ASM_ACPI_TABLE_H__
 
-ulong write_acpi_tables(ulong start);
+/* Empty for now, this file is required by acpi/acpi_table.h */
 
 #endif /* __ASM_ACPI_TABLE_H__ */

arch/x86/include/asm/acpi_table.h

@@ -64,8 +64,6 @@ int acpi_write_dbg2_pci_uart(struct acpi_ctx *ctx, struct udevice *dev,
  */
 int acpi_create_gnvs(struct acpi_global_nvs *gnvs);
 
-ulong write_acpi_tables(ulong start);
-
 /**
  * acpi_get_rsdp_addr() - get ACPI RSDP table address
  *

boot/pxe_utils.c

@@ -20,6 +20,11 @@
 #include <errno.h>
 #include <linux/list.h>
 
+#ifdef CONFIG_DM_RNG
+#include <dm.h>
+#include <rng.h>
+#endif
+
 #include <splash.h>
 #include <asm/io.h>
 
@@ -311,6 +316,67 @@ static int label_localboot(struct pxe_label *label)
 	return run_command_list(localcmd, strlen(localcmd), 0);
 }
 
+/*
+ * label_boot_kaslrseed generate kaslrseed from hw rng
+ */
+
+static void label_boot_kaslrseed(void)
+{
+#ifdef CONFIG_DM_RNG
+	ulong fdt_addr;
+	struct fdt_header *working_fdt;
+	size_t n = 0x8;
+	struct udevice *dev;
+	u64 *buf;
+	int nodeoffset;
+	int err;
+
+	/* Get the main fdt and map it */
+	fdt_addr = hextoul(env_get("fdt_addr_r"), NULL);
+	working_fdt = map_sysmem(fdt_addr, 0);
+	err = fdt_check_header(working_fdt);
+	if (err)
+		return;
+
+	/* add extra size for holding kaslr-seed */
+	/* err is new fdt size, 0 or negtive */
+	err = fdt_shrink_to_minimum(working_fdt, 512);
+	if (err <= 0)
+		return;
+
+	if (uclass_get_device(UCLASS_RNG, 0, &dev) || !dev) {
+		printf("No RNG device\n");
+		return;
+	}
+
+	nodeoffset = fdt_find_or_add_subnode(working_fdt, 0, "chosen");
+	if (nodeoffset < 0) {
+		printf("Reading chosen node failed\n");
+		return;
+	}
+
+	buf = malloc(n);
+	if (!buf) {
+		printf("Out of memory\n");
+		return;
+	}
+
+	if (dm_rng_read(dev, buf, n)) {
+		printf("Reading RNG failed\n");
+		goto err;
+	}
+
+	err = fdt_setprop(working_fdt, nodeoffset, "kaslr-seed", buf, sizeof(buf));
+	if (err < 0) {
+		printf("Unable to set kaslr-seed on chosen node: %s\n", fdt_strerror(err));
+		goto err;
+	}
+err:
+	free(buf);
+#endif
+	return;
+}
+
 /**
  * label_boot_fdtoverlay() - Loads fdt overlays specified in 'fdtoverlays'
  *
@@ -631,6 +697,9 @@ static int label_boot(struct pxe_context *ctx, struct pxe_label *label)
 				}
 			}
 
+		if (label->kaslrseed)
+			label_boot_kaslrseed();
+
 #ifdef CONFIG_OF_LIBFDT_OVERLAY
 			if (label->fdtoverlays)
 				label_boot_fdtoverlay(ctx, label);
@@ -710,6 +779,7 @@ enum token_type {
 	T_ONTIMEOUT,
 	T_IPAPPEND,
 	T_BACKGROUND,
+	T_KASLRSEED,
 	T_INVALID
 };
 
@@ -741,6 +811,7 @@ static const struct token keywords[] = {
 	{"ontimeout", T_ONTIMEOUT,},
 	{"ipappend", T_IPAPPEND,},
 	{"background", T_BACKGROUND,},
+	{"kaslrseed", T_KASLRSEED,},
 	{NULL, T_INVALID}
 };
 
@@ -1194,6 +1265,10 @@ static int parse_label(char **c, struct pxe_menu *cfg)
 			err = parse_integer(c, &label->ipappend);
 			break;
 
+		case T_KASLRSEED:
+			label->kaslrseed = 1;
+			break;
+
 		case T_EOL:
 			break;
 

cmd/dfu.c

@@ -28,7 +28,6 @@ static int do_dfu(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 #ifdef CONFIG_DFU_OVER_USB
 	char *usb_controller = argv[1];
 #endif
-#if defined(CONFIG_DFU_OVER_USB) || defined(CONFIG_DFU_OVER_TFTP)
 	char *interface = NULL;
 	char *devstring = NULL;
 #if defined(CONFIG_DFU_TIMEOUT) || defined(CONFIG_DFU_OVER_TFTP)
@@ -42,7 +41,6 @@ static int do_dfu(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 #if defined(CONFIG_DFU_TIMEOUT) || defined(CONFIG_DFU_OVER_TFTP)
 	if (argc == 5 || argc == 3)
 		value = simple_strtoul(argv[argc - 1], NULL, 0);
-#endif
 #endif
 
 	int ret = 0;
@@ -50,7 +48,6 @@ static int do_dfu(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	if (!strcmp(argv[1], "tftp"))
 		return update_tftp(value, interface, devstring);
 #endif
-#ifdef CONFIG_DFU_OVER_USB
 	ret = dfu_init_env_entities(interface, devstring);
 	if (ret)
 		goto done;
@@ -65,6 +62,7 @@ static int do_dfu(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 		goto done;
 	}
 
+#ifdef CONFIG_DFU_OVER_USB
 	int controller_index = simple_strtoul(usb_controller, NULL, 0);
 	bool retry = false;
 	do {
@@ -79,9 +77,9 @@ static int do_dfu(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 		}
 	} while (retry);
 
+#endif
 done:
 	dfu_free_entities();
-#endif
 	return ret;
 }
 
@@ -100,8 +98,8 @@ U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
 #ifdef CONFIG_DFU_TIMEOUT
 	"    [<timeout>] - specify inactivity timeout in seconds\n"
 #endif
-	"    [list] - list available alt settings\n"
 #endif
+	"    [list] - list available alt settings\n"
 #ifdef CONFIG_DFU_OVER_TFTP
 #ifdef CONFIG_DFU_OVER_USB
 	"dfu "

cmd/stackprot_test.c

@@ -17,7 +17,8 @@ static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
 
 	memset(a, 0xa5, 512);
 
-	printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %ld\n", strlen(a));
+	printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %zd\n",
+	       strlen(a));
 
 	return 0;
 }

common/fdt_support.c

@@ -988,7 +988,7 @@ void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info,
 {
 	struct mtd_device *dev;
 	int i, idx;
-	int noff;
+	int noff, parts;
 	bool inited = false;
 
 	for (i = 0; i < node_info_size; i++) {
@@ -1014,7 +1014,12 @@ void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info,
 
 			dev = device_find(node_info[i].type, idx++);
 			if (dev) {
-				if (fdt_node_set_part_info(blob, noff, dev))
+				parts = fdt_subnode_offset(blob, noff,
+							   "partitions");
+				if (parts < 0)
+					parts = noff;
+
+				if (fdt_node_set_part_info(blob, parts, dev))
 					return; /* return on error */
 			}
 		}

common/malloc_simple.c

@@ -23,7 +23,7 @@ static void *alloc_simple(size_t bytes, int align)
 
 	addr = ALIGN(gd->malloc_base + gd->malloc_ptr, align);
 	new_ptr = addr + bytes - gd->malloc_base;
-	log_debug("size=%zx, ptr=%lx, limit=%lx: ", bytes, new_ptr,
+	log_debug("size=%lx, ptr=%lx, limit=%lx: ", (ulong)bytes, new_ptr,
 		  gd->malloc_limit);
 	if (new_ptr > gd->malloc_limit) {
 		log_err("alloc space exhausted\n");

doc/README.pxe

@@ -163,6 +163,8 @@ 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.
 
+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
 		      label.
 

doc/mkimage.1

@@ -158,7 +158,7 @@ CONFIG_OF_CONTROL in U-Boot.
 .TP
 .BI "\-o [" "signing algorithm" "]"
 Specifies the algorithm to be used for signing a FIT image. The default is
-taken from the target signature nodes 'algo' properties.
+taken from the signature node's 'algo' property.
 
 .TP
 .BI "\-p [" "external position" "]"

doc/usage/dfu.rst

@@ -113,9 +113,9 @@ mmc
     each element in *dfu_alt_info* being
 
     * <name> raw <offset> <size> [mmcpart <num>]   raw access to mmc device
-    * <name> part <dev> <part_id> [mmcpart <num>]  raw access to partition
+    * <name> part <dev> <part_id> [offset <byte>]  raw access to partition
-    * <name> fat <dev> <part_id> [mmcpart <num>]   file in FAT partition
+    * <name> fat <dev> <part_id>                   file in FAT partition
-    * <name> ext4 <dev> <part_id> [mmcpart <num>]  file in EXT4 partition
+    * <name> ext4 <dev> <part_id>                  file in EXT4 partition
     * <name> skip 0 0                              ignore flashed data
     * <name> script 0 0                            execute commands in shell
 
@@ -169,14 +169,20 @@ nand
 
     each element in *dfu_alt_info* being either of
 
-    * <name> raw <offset> <size>   raw access to mmc device
+    * <name> raw <offset> <size>        raw access to nand device
-    * <name> part <dev> <part_id>  raw acces to partition
+    * <name> part <dev_id> <part_id>     raw access to partition
-    * <name> partubi <dev> <part_id>  raw acces to ubi partition
+    * <name> partubi <dev_id> <part_id>  raw access to ubi partition
 
     with
 
-    partid
+    offset
-        is the MTD partition index
+        is the offset in the nand device (hexadecimal without "0x")
+    size
+        is the size of the access area (hexadecimal without "0x")
+    dev_id
+        is the NAND device index (decimal only)
+    part_id
+        is the NAND partition index (decimal only)
 
 ram
     raw access to ram::
@@ -190,6 +196,13 @@ ram
 
       <name> ram <offset> <size>  raw access to ram
 
+    with
+
+    offset
+        is the offset in the ram device (hexadecimal without "0x")
+    size
+        is the size of the access area (hexadecimal without "0x")
+
 sf
     serial flash : NOR::
 
@@ -198,13 +211,19 @@ sf
     each element in *dfu_alt_info* being either of:
 
     * <name> raw <offset> <size>  raw access to sf device
-    * <name> part <dev> <part_id>  raw acces to partition
+    * <name> part <dev_id> <part_id>  raw acces to partition
-    * <name> partubi <dev> <part_id>  raw acces to ubi partition
+    * <name> partubi <dev_id> <part_id>  raw acces to ubi partition
 
     with
 
-    partid
+    offset
-        is the MTD partition index
+        is the offset in the sf device (hexadecimal without "0x")
+    size
+        is the size of the access area (hexadecimal without "0x")
+    dev_id
+        is the sf device index (the device is "nor<dev_id>") (deximal only)
+    part_id
+        is the MTD partition index (decimal only)
 
 mtd
     all MTD device: NAND, SPI-NOR, SPI-NAND,...::
@@ -219,14 +238,18 @@ mtd
 
     each element in *dfu_alt_info* being either of:
 
-    * <name> raw <offset> <size> forraw access to mtd device
+    * <name> raw <offset> <size>  for raw access to mtd device
-    * <name> part <dev> <part_id> for raw acces to partition
+    * <name> part <part_id>       for raw access to partition
-    * <name> partubi <dev> <part_id> for raw acces to ubi partition
+    * <name> partubi <part_id>    for raw access to ubi partition
 
     with
 
-    partid
+    offset
-        is the MTD partition index
+        is the offset in the mtd device (hexadecimal without "0x")
+    size
+        is the size of the access area (hexadecimal without "0x")
+    part_id
+        is the MTD partition index (decimal only)
 
 virt
     virtual flash back end for DFU

drivers/button/button-adc.c

@@ -55,7 +55,7 @@ static int button_adc_of_to_plat(struct udevice *dev)
 	struct button_uc_plat *uc_plat = dev_get_uclass_plat(dev);
 	struct button_adc_priv *priv = dev_get_priv(dev);
 	struct ofnode_phandle_args args;
-	u32 threshold, up_threshold, t;
+	u32 down_threshold = 0, up_threshold, voltage, t;
 	ofnode node;
 	int ret;
 
@@ -78,7 +78,7 @@ static int button_adc_of_to_plat(struct udevice *dev)
 		return ret;
 
 	ret = ofnode_read_u32(dev_ofnode(dev), "press-threshold-microvolt",
-			      &threshold);
+			      &voltage);
 	if (ret)
 		return ret;
 
@@ -87,13 +87,24 @@ static int button_adc_of_to_plat(struct udevice *dev)
 		if (ret)
 			return ret;
 
-		if (t > threshold)
+		if (t > voltage && t < up_threshold)
 			up_threshold = t;
+		else if (t < voltage && t > down_threshold)
+			down_threshold = t;
 	}
 
 	priv->channel = args.args[0];
-	priv->min = threshold;
+
-	priv->max = up_threshold;
+	/*
+	 * Define the voltage range such that the button is only pressed
+	 * when the voltage is closest to its own press-threshold-microvolt
+	 */
+	if (down_threshold == 0)
+		priv->min = 0;
+	else
+		priv->min = down_threshold + (voltage - down_threshold) / 2;
+
+	priv->max = voltage + (up_threshold - voltage) / 2;
 
 	return ret;
 }

drivers/dfu/dfu.c

@@ -123,9 +123,10 @@ int dfu_config_interfaces(char *env)
 	s = env;
 	while (s) {
 		ret = -EINVAL;
-		i = strsep(&s, " ");
+		i = strsep(&s, " \t");
 		if (!i)
 			break;
+		s = skip_spaces(s);
 		d = strsep(&s, "=");
 		if (!d)
 			break;
@@ -499,11 +500,29 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
 static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
 			   char *interface, char *devstr)
 {
+	char *argv[DFU_MAX_ENTITY_ARGS];
+	int argc;
 	char *st;
 
 	debug("%s: %s interface: %s dev: %s\n", __func__, s, interface, devstr);
-	st = strsep(&s, " ");
+	st = strsep(&s, " \t");
-	strcpy(dfu->name, st);
+	strlcpy(dfu->name, st, DFU_NAME_SIZE);
+
+	/* Parse arguments */
+	for (argc = 0; s && argc < DFU_MAX_ENTITY_ARGS; argc++) {
+		s = skip_spaces(s);
+		if (!*s)
+			break;
+		argv[argc] = strsep(&s, " \t");
+	}
+
+	if (argc == DFU_MAX_ENTITY_ARGS && s) {
+		s = skip_spaces(s);
+		if (*s) {
+			log_err("Too many arguments for %s\n", dfu->name);
+			return -EINVAL;
+		}
+	}
 
 	dfu->alt = alt;
 	dfu->max_buf_size = 0;
@@ -511,22 +530,22 @@ static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
 
 	/* Specific for mmc device */
 	if (strcmp(interface, "mmc") == 0) {
-		if (dfu_fill_entity_mmc(dfu, devstr, s))
+		if (dfu_fill_entity_mmc(dfu, devstr, argv, argc))
 			return -1;
 	} else if (strcmp(interface, "mtd") == 0) {
-		if (dfu_fill_entity_mtd(dfu, devstr, s))
+		if (dfu_fill_entity_mtd(dfu, devstr, argv, argc))
 			return -1;
 	} else if (strcmp(interface, "nand") == 0) {
-		if (dfu_fill_entity_nand(dfu, devstr, s))
+		if (dfu_fill_entity_nand(dfu, devstr, argv, argc))
 			return -1;
 	} else if (strcmp(interface, "ram") == 0) {
-		if (dfu_fill_entity_ram(dfu, devstr, s))
+		if (dfu_fill_entity_ram(dfu, devstr, argv, argc))
 			return -1;
 	} else if (strcmp(interface, "sf") == 0) {
-		if (dfu_fill_entity_sf(dfu, devstr, s))
+		if (dfu_fill_entity_sf(dfu, devstr, argv, argc))
 			return -1;
 	} else if (strcmp(interface, "virt") == 0) {
-		if (dfu_fill_entity_virt(dfu, devstr, s))
+		if (dfu_fill_entity_virt(dfu, devstr, argv, argc))
 			return -1;
 	} else {
 		printf("%s: Device %s not (yet) supported!\n",

drivers/dfu/dfu_mmc.c

@@ -337,34 +337,34 @@ void dfu_free_entity_mmc(struct dfu_entity *dfu)
  *	4th (optional):
  *		mmcpart <num> (access to HW eMMC partitions)
  */
-int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
 	const char *entity_type;
 	ssize_t second_arg;
 	size_t third_arg;
-
 	struct mmc *mmc;
+	char *s;
 
-	const char *argv[3];
+	if (argc < 3) {
-	const char **parg = argv;
+		pr_err("The number of parameters are not enough.\n");
-
+		return -EINVAL;
-	dfu->data.mmc.dev_num = dectoul(devstr, NULL);
-
-	for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
-		*parg = strsep(&s, " ");
-		if (*parg == NULL) {
-			pr_err("Invalid number of arguments.\n");
-			return -ENODEV;
-		}
 	}
 
+	dfu->data.mmc.dev_num = dectoul(devstr, &s);
+	if (*s)
+		return -EINVAL;
+
 	entity_type = argv[0];
 	/*
 	 * Base 0 means we'll accept (prefixed with 0x or 0) base 16, 8,
 	 * with default 10.
 	 */
-	second_arg = simple_strtol(argv[1], NULL, 0);
+	second_arg = simple_strtol(argv[1], &s, 0);
-	third_arg = simple_strtoul(argv[2], NULL, 0);
+	if (*s)
+		return -EINVAL;
+	third_arg = simple_strtoul(argv[2], &s, 0);
+	if (*s)
+		return -EINVAL;
 
 	mmc = find_mmc_device(dfu->data.mmc.dev_num);
 	if (mmc == NULL) {
@@ -389,10 +389,14 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
 		 * Check for an extra entry at dfu_alt_info env variable
 		 * specifying the mmc HW defined partition number
 		 */
-		if (s)
+		if (argc > 3) {
-			if (!strcmp(strsep(&s, " "), "mmcpart"))
+			if (argc != 5 || strcmp(argv[3], "mmcpart")) {
-				dfu->data.mmc.hw_partition =
+				pr_err("DFU mmc raw accept 'mmcpart <partnum>' option.\n");
-					simple_strtoul(s, NULL, 0);
+				return -EINVAL;
+			}
+			dfu->data.mmc.hw_partition =
+				simple_strtoul(argv[4], NULL, 0);
+		}
 
 	} else if (!strcmp(entity_type, "part")) {
 		struct disk_partition partinfo;
@@ -411,13 +415,18 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
 		 * Check for an extra entry at dfu_alt_info env variable
 		 * specifying the mmc HW defined partition number
 		 */
-		if (s)
+		if (argc > 3) {
-			if (!strcmp(strsep(&s, " "), "offset"))
+			if (argc != 5 || strcmp(argv[3], "offset")) {
-				offset = simple_strtoul(s, NULL, 0);
+				pr_err("DFU mmc raw accept 'mmcpart <partnum>' option.\n");
+				return -EINVAL;
+			}
+			dfu->data.mmc.hw_partition =
+				simple_strtoul(argv[4], NULL, 0);
+		}
 
 		dfu->layout			= DFU_RAW_ADDR;
 		dfu->data.mmc.lba_start		= partinfo.start + offset;
-		dfu->data.mmc.lba_size		= partinfo.size-offset;
+		dfu->data.mmc.lba_size		= partinfo.size - offset;
 		dfu->data.mmc.lba_blk_size	= partinfo.blksz;
 	} else if (!strcmp(entity_type, "fat")) {
 		dfu->layout = DFU_FS_FAT;

drivers/dfu/dfu_mtd.c

@@ -12,6 +12,7 @@
 #include <mtd.h>
 #include <jffs2/load_kernel.h>
 #include <linux/err.h>
+#include <linux/ctype.h>
 
 static bool mtd_is_aligned_with_block_size(struct mtd_info *mtd, u64 size)
 {
@@ -270,9 +271,9 @@ static unsigned int dfu_polltimeout_mtd(struct dfu_entity *dfu)
 	return DFU_DEFAULT_POLL_TIMEOUT;
 }
 
-int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
-	char *st;
+	char *s;
 	struct mtd_info *mtd;
 	int ret, part;
 
@@ -284,22 +285,33 @@ int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s)
 	dfu->dev_type = DFU_DEV_MTD;
 	dfu->data.mtd.info = mtd;
 	dfu->max_buf_size = mtd->erasesize;
+	if (argc < 1)
+		return -EINVAL;
 
-	st = strsep(&s, " ");
+	if (!strcmp(argv[0], "raw")) {
-	if (!strcmp(st, "raw")) {
+		if (argc != 3)
+			return -EINVAL;
 		dfu->layout = DFU_RAW_ADDR;
-		dfu->data.mtd.start = hextoul(s, &s);
+		dfu->data.mtd.start = hextoul(argv[1], &s);
-		s++;
+		if (*s)
-		dfu->data.mtd.size = hextoul(s, &s);
+			return -EINVAL;
-	} else if ((!strcmp(st, "part")) || (!strcmp(st, "partubi"))) {
+		dfu->data.mtd.size = hextoul(argv[2], &s);
+		if (*s)
+			return -EINVAL;
+	} else if ((!strcmp(argv[0], "part")) || (!strcmp(argv[0], "partubi"))) {
 		char mtd_id[32];
 		struct mtd_device *mtd_dev;
 		u8 part_num;
 		struct part_info *pi;
 
+		if (argc != 2)
+			return -EINVAL;
+
 		dfu->layout = DFU_RAW_ADDR;
 
-		part = dectoul(s, &s);
+		part = dectoul(argv[1], &s);
+		if (*s)
+			return -EINVAL;
 
 		sprintf(mtd_id, "%s,%d", devstr, part - 1);
 		printf("using id '%s'\n", mtd_id);
@@ -314,10 +326,10 @@ int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s)
 
 		dfu->data.mtd.start = pi->offset;
 		dfu->data.mtd.size = pi->size;
-		if (!strcmp(st, "partubi"))
+		if (!strcmp(argv[0], "partubi"))
 			dfu->data.mtd.ubi = 1;
 	} else {
-		printf("%s: Memory layout (%s) not supported!\n", __func__, st);
+		printf("%s: Memory layout (%s) not supported!\n", __func__, argv[0]);
 		return -1;
 	}
 

drivers/dfu/dfu_nand.c

@@ -194,20 +194,25 @@ unsigned int dfu_polltimeout_nand(struct dfu_entity *dfu)
 	return DFU_DEFAULT_POLL_TIMEOUT;
 }
 
-int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
-	char *st;
+	char *s;
 	int ret, dev, part;
 
 	dfu->data.nand.ubi = 0;
 	dfu->dev_type = DFU_DEV_NAND;
-	st = strsep(&s, " ");
+	if (argc != 3)
-	if (!strcmp(st, "raw")) {
+		return -EINVAL;
+
+	if (!strcmp(argv[0], "raw")) {
 		dfu->layout = DFU_RAW_ADDR;
-		dfu->data.nand.start = hextoul(s, &s);
+		dfu->data.nand.start = hextoul(argv[1], &s);
-		s++;
+		if (*s)
-		dfu->data.nand.size = hextoul(s, &s);
+			return -EINVAL;
-	} else if ((!strcmp(st, "part")) || (!strcmp(st, "partubi"))) {
+		dfu->data.nand.size = hextoul(argv[2], &s);
+		if (*s)
+			return -EINVAL;
+	} else if ((!strcmp(argv[0], "part")) || (!strcmp(argv[0], "partubi"))) {
 		char mtd_id[32];
 		struct mtd_device *mtd_dev;
 		u8 part_num;
@@ -215,9 +220,12 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s)
 
 		dfu->layout = DFU_RAW_ADDR;
 
-		dev = dectoul(s, &s);
+		dev = dectoul(argv[1], &s);
-		s++;
+		if (*s)
-		part = dectoul(s, &s);
+			return -EINVAL;
+		part = dectoul(argv[2], &s);
+		if (*s)
+			return -EINVAL;
 
 		sprintf(mtd_id, "%s%d,%d", "nand", dev, part - 1);
 		debug("using id '%s'\n", mtd_id);
@@ -232,10 +240,10 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s)
 
 		dfu->data.nand.start = pi->offset;
 		dfu->data.nand.size = pi->size;
-		if (!strcmp(st, "partubi"))
+		if (!strcmp(argv[0], "partubi"))
 			dfu->data.nand.ubi = 1;
 	} else {
-		printf("%s: Memory layout (%s) not supported!\n", __func__, st);
+		printf("%s: Memory layout (%s) not supported!\n", __func__, argv[0]);
 		return -1;
 	}
 

drivers/dfu/dfu_ram.c

@@ -54,17 +54,13 @@ static int dfu_read_medium_ram(struct dfu_entity *dfu, u64 offset,
 	return dfu_transfer_medium_ram(DFU_OP_READ, dfu, offset, buf, len);
 }
 
-int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
-	const char *argv[3];
+	char *s;
-	const char **parg = argv;
 
-	for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
+	if (argc != 3) {
-		*parg = strsep(&s, " ");
+		pr_err("Invalid number of arguments.\n");
-		if (*parg == NULL) {
+		return -EINVAL;
-			pr_err("Invalid number of arguments.\n");
-			return -ENODEV;
-		}
 	}
 
 	dfu->dev_type = DFU_DEV_RAM;
@@ -74,8 +70,12 @@ int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s)
 	}
 
 	dfu->layout = DFU_RAM_ADDR;
-	dfu->data.ram.start = hextoul(argv[1], NULL);
+	dfu->data.ram.start = hextoul(argv[1], &s);
-	dfu->data.ram.size = hextoul(argv[2], NULL);
+	if (*s)
+		return -EINVAL;
+	dfu->data.ram.size = hextoul(argv[2], &s);
+	if (*s)
+		return -EINVAL;
 
 	dfu->write_medium = dfu_write_medium_ram;
 	dfu->get_medium_size = dfu_get_medium_size_ram;

drivers/dfu/dfu_sf.c

@@ -13,6 +13,7 @@
 #include <spi_flash.h>
 #include <jffs2/load_kernel.h>
 #include <linux/mtd/mtd.h>
+#include <linux/ctype.h>
 
 static int dfu_get_medium_size_sf(struct dfu_entity *dfu, u64 *size)
 {
@@ -165,9 +166,9 @@ static struct spi_flash *parse_dev(char *devstr)
 	return dev;
 }
 
-int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
-	char *st;
+	char *s;
 	char *devstr_bkup = strdup(devstr);
 
 	dfu->data.sf.dev = parse_dev(devstr_bkup);
@@ -178,14 +179,18 @@ int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
 	dfu->dev_type = DFU_DEV_SF;
 	dfu->max_buf_size = dfu->data.sf.dev->sector_size;
 
-	st = strsep(&s, " ");
+	if (argc != 3)
-	if (!strcmp(st, "raw")) {
+		return -EINVAL;
+	if (!strcmp(argv[0], "raw")) {
 		dfu->layout = DFU_RAW_ADDR;
-		dfu->data.sf.start = hextoul(s, &s);
+		dfu->data.sf.start = hextoul(argv[1], &s);
-		s++;
+		if (*s)
-		dfu->data.sf.size = hextoul(s, &s);
+			return -EINVAL;
+		dfu->data.sf.size = hextoul(argv[2], &s);
+		if (*s)
+			return -EINVAL;
 	} else if (CONFIG_IS_ENABLED(DFU_SF_PART) &&
-		   (!strcmp(st, "part") || !strcmp(st, "partubi"))) {
+		   (!strcmp(argv[0], "part") || !strcmp(argv[0], "partubi"))) {
 		char mtd_id[32];
 		struct mtd_device *mtd_dev;
 		u8 part_num;
@@ -194,9 +199,12 @@ int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
 
 		dfu->layout = DFU_RAW_ADDR;
 
-		dev = dectoul(s, &s);
+		dev = dectoul(argv[1], &s);
-		s++;
+		if (*s)
-		part = dectoul(s, &s);
+			return -EINVAL;
+		part = dectoul(argv[2], &s);
+		if (*s)
+			return -EINVAL;
 
 		sprintf(mtd_id, "%s%d,%d", "nor", dev, part - 1);
 		printf("using id '%s'\n", mtd_id);
@@ -210,10 +218,10 @@ int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
 		}
 		dfu->data.sf.start = pi->offset;
 		dfu->data.sf.size = pi->size;
-		if (!strcmp(st, "partubi"))
+		if (!strcmp(argv[0], "partubi"))
 			dfu->data.sf.ubi = 1;
 	} else {
-		printf("%s: Memory layout (%s) not supported!\n", __func__, st);
+		printf("%s: Memory layout (%s) not supported!\n", __func__, argv[0]);
 		spi_flash_free(dfu->data.sf.dev);
 		return -1;
 	}

drivers/dfu/dfu_virt.c

@@ -32,10 +32,13 @@ int __weak dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
 	return 0;
 }
 
-int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char *s)
+int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char **argv, int argc)
 {
 	debug("%s: devstr = %s\n", __func__, devstr);
 
+	if (argc != 0)
+		return -EINVAL;
+
 	dfu->dev_type = DFU_DEV_VIRT;
 	dfu->layout = DFU_RAW_ADDR;
 	dfu->data.virt.dev_num = dectoul(devstr, NULL);

drivers/phy/nop-phy.c

@@ -10,25 +10,54 @@
 #include <dm/device.h>
 #include <dm/device_compat.h>
 #include <generic-phy.h>
+#include <asm-generic/gpio.h>
 
 struct nop_phy_priv {
 	struct clk_bulk bulk;
+#if CONFIG_IS_ENABLED(DM_GPIO)
+	struct gpio_desc reset_gpio;
+#endif
 };
 
+#if CONFIG_IS_ENABLED(DM_GPIO)
+static int nop_phy_reset(struct phy *phy)
+{
+	struct nop_phy_priv *priv = dev_get_priv(phy->dev);
+
+	/* Return if there is no gpio since it's optional */
+	if (!dm_gpio_is_valid(&priv->reset_gpio))
+		return 0;
+
+	return dm_gpio_set_value(&priv->reset_gpio, false);
+}
+#endif
+
 static int nop_phy_init(struct phy *phy)
 {
 	struct nop_phy_priv *priv = dev_get_priv(phy->dev);
+	int ret = 0;
 
-	if (CONFIG_IS_ENABLED(CLK))
+	if (CONFIG_IS_ENABLED(CLK)) {
-		return clk_enable_bulk(&priv->bulk);
+		ret = clk_enable_bulk(&priv->bulk);
+		if (ret)
+			return ret;
+	}
 
+#if CONFIG_IS_ENABLED(DM_GPIO)
+	ret = nop_phy_reset(phy);
+	if (ret) {
+		if (CONFIG_IS_ENABLED(CLK))
+			clk_disable_bulk(&priv->bulk);
+		return ret;
+	}
+#endif
 	return 0;
 }
 
 static int nop_phy_probe(struct udevice *dev)
 {
 	struct nop_phy_priv *priv = dev_get_priv(dev);
-	int ret;
+	int ret = 0;
 
 	if (CONFIG_IS_ENABLED(CLK)) {
 		ret = clk_get_bulk(dev, &priv->bulk);
@@ -37,6 +66,13 @@ static int nop_phy_probe(struct udevice *dev)
 			return ret;
 		}
 	}
+#if CONFIG_IS_ENABLED(DM_GPIO)
+	ret = gpio_request_by_name(dev, "reset-gpios", 0,
+				   &priv->reset_gpio,
+				   GPIOD_IS_OUT);
+#endif
+	if (ret != -ENOENT)
+		return ret;
 
 	return 0;
 }
@@ -49,6 +85,9 @@ static const struct udevice_id nop_phy_ids[] = {
 
 static struct phy_ops nop_phy_ops = {
 	.init = nop_phy_init,
+#if CONFIG_IS_ENABLED(DM_GPIO)
+	.reset = nop_phy_reset,
+#endif
 };
 
 U_BOOT_DRIVER(nop_phy) = {

include/acpi/acpi_table.h

@@ -913,6 +913,16 @@ void acpi_fill_header(struct acpi_table_header *header, char *signature);
  */
 int acpi_fill_csrt(struct acpi_ctx *ctx);
 
+/**
+ * write_acpi_tables() - Write out the ACPI tables
+ *
+ * This writes all ACPI tables to the given address
+ *
+ * @start: Start address for the tables
+ * @return address of end of tables, where the next tables can be written
+ */
+ulong write_acpi_tables(ulong start);
+
 #endif /* !__ACPI__*/
 
 #include <asm/acpi_table.h>

include/dfu.h

@@ -432,11 +432,15 @@ static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
 int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);
 
 /* Device specific */
+/* Each entity has 5 arguments in maximum. */
+#define DFU_MAX_ENTITY_ARGS	5
+
 #if CONFIG_IS_ENABLED(DFU_MMC)
-extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
+extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
+			       char **argv, int argc);
 #else
 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
-				      char *s)
+				      char **argv, int argc)
 {
 	puts("MMC support not available!\n");
 	return -1;
@@ -444,10 +448,11 @@ static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
 #endif
 
 #if CONFIG_IS_ENABLED(DFU_NAND)
-extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
+extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
+				char **argv, int argc);
 #else
 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
-				       char *s)
+				       char **argv, int argc)
 {
 	puts("NAND support not available!\n");
 	return -1;
@@ -455,10 +460,11 @@ static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
 #endif
 
 #if CONFIG_IS_ENABLED(DFU_RAM)
-extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
+extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
+			       char **argv, int argc);
 #else
 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
-				      char *s)
+				      char **argv, int argc)
 {
 	puts("RAM support not available!\n");
 	return -1;
@@ -466,10 +472,11 @@ static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
 #endif
 
 #if CONFIG_IS_ENABLED(DFU_SF)
-extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
+extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
+			      char **argv, int argc);
 #else
 static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
-				     char *s)
+				     char **argv, int argc)
 {
 	puts("SF support not available!\n");
 	return -1;
@@ -477,10 +484,11 @@ static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
 #endif
 
 #if CONFIG_IS_ENABLED(DFU_MTD)
-int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr, char *s);
+extern int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr,
+			       char **argv, int argc);
 #else
 static inline int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr,
-				      char *s)
+				      char **argv, int argc)
 {
 	puts("MTD support not available!\n");
 	return -1;
@@ -488,7 +496,8 @@ static inline int dfu_fill_entity_mtd(struct dfu_entity *dfu, char *devstr,
 #endif
 
 #ifdef CONFIG_DFU_VIRT
-int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char *s);
+int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr,
+			 char **argv, int argc);
 int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
 			  void *buf, long *len);
 int dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size);
@@ -496,7 +505,7 @@ int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
 			 void *buf, long *len);
 #else
 static inline int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr,
-				       char *s)
+				       char **argv, int argc)
 {
 	puts("VIRT support not available!\n");
 	return -1;

include/pxe_utils.h

@@ -33,6 +33,7 @@
  * initrd - path to the initrd to use for this label.
  * attempted - 0 if we haven't tried to boot this label, 1 if we have.
  * localboot - 1 if this label specified 'localboot', 0 otherwise.
+ * kaslrseed - 1 if generate kaslrseed from hw_rng
  * list - lets these form a list, which a pxe_menu struct will hold.
  */
 struct pxe_label {
@@ -50,6 +51,7 @@ struct pxe_label {
 	int attempted;
 	int localboot;
 	int localboot_val;
+	int kaslrseed;
 	struct list_head list;
 };
 

scripts/pylint.base

@@ -66,7 +66,7 @@ test_tests_test_tpm2.py 8.51
 test_tests_test_ums.py 6.32
 test_tests_test_unknown_cmd.py 5.00
 test_tests_test_ut.py 7.06
-test_tests_test_vboot.py 6.08
+test_tests_test_vboot.py 6.01
 test_tests_vboot_evil.py 8.95
 test_tests_vboot_forge.py 9.22
 test_u_boot_console_base.py 7.08

test/print_ut.c

@@ -370,6 +370,18 @@ static int snprint(struct unit_test_state *uts)
 	char buf[10] = "xxxxxxxxx";
 	int ret;
 
+	ret = snprintf(buf, 5, "%d", 12345678);
+	ut_asserteq_str("1234", buf);
+	ut_asserteq(8, ret);
+	ret = snprintf(buf, 5, "0x%x", 0x1234);
+	ut_asserteq_str("0x12", buf);
+	ut_asserteq(6, ret);
+	ret = snprintf(buf, 5, "0x%08x", 0x1234);
+	ut_asserteq_str("0x00", buf);
+	ut_asserteq(10, ret);
+	ret = snprintf(buf, 3, "%s", "abc");
+	ut_asserteq_str("ab", buf);
+	ut_asserteq(3, ret);
 	ret = snprintf(buf, 4, "%s:%s", "abc", "def");
 	ut_asserteq(0, buf[3]);
 	ut_asserteq(7, ret);

test/py/tests/test_vboot.py

@@ -35,18 +35,19 @@ import vboot_evil
 # Only run the full suite on a few combinations, since it doesn't add any more
 # test coverage.
 TESTDATA = [
-    ['sha1-basic', 'sha1', '', None, False, True],
+    ['sha1-basic', 'sha1', '', None, False, True, False],
-    ['sha1-pad', 'sha1', '', '-E -p 0x10000', False, False],
+    ['sha1-pad', 'sha1', '', '-E -p 0x10000', False, False, False],
-    ['sha1-pss', 'sha1', '-pss', None, False, False],
+    ['sha1-pss', 'sha1', '-pss', None, False, False, False],
-    ['sha1-pss-pad', 'sha1', '-pss', '-E -p 0x10000', False, False],
+    ['sha1-pss-pad', 'sha1', '-pss', '-E -p 0x10000', False, False, False],
-    ['sha256-basic', 'sha256', '', None, False, False],
+    ['sha256-basic', 'sha256', '', None, False, False, False],
-    ['sha256-pad', 'sha256', '', '-E -p 0x10000', False, False],
+    ['sha256-pad', 'sha256', '', '-E -p 0x10000', False, False, False],
-    ['sha256-pss', 'sha256', '-pss', None, False, False],
+    ['sha256-pss', 'sha256', '-pss', None, False, False, False],
-    ['sha256-pss-pad', 'sha256', '-pss', '-E -p 0x10000', False, False],
+    ['sha256-pss-pad', 'sha256', '-pss', '-E -p 0x10000', False, False, False],
-    ['sha256-pss-required', 'sha256', '-pss', None, True, False],
+    ['sha256-pss-required', 'sha256', '-pss', None, True, False, False],
-    ['sha256-pss-pad-required', 'sha256', '-pss', '-E -p 0x10000', True, True],
+    ['sha256-pss-pad-required', 'sha256', '-pss', '-E -p 0x10000', True, True, False],
-    ['sha384-basic', 'sha384', '', None, False, False],
+    ['sha384-basic', 'sha384', '', None, False, False, False],
-    ['sha384-pad', 'sha384', '', '-E -p 0x10000', False, False],
+    ['sha384-pad', 'sha384', '', '-E -p 0x10000', False, False, False],
+    ['algo-arg', 'algo-arg', '', '-o sha256,rsa2048', False, False, True],
 ]
 
 @pytest.mark.boardspec('sandbox')
@@ -55,10 +56,10 @@ TESTDATA = [
 @pytest.mark.requiredtool('fdtget')
 @pytest.mark.requiredtool('fdtput')
 @pytest.mark.requiredtool('openssl')
-@pytest.mark.parametrize("name,sha_algo,padding,sign_options,required,full_test",
+@pytest.mark.parametrize("name,sha_algo,padding,sign_options,required,full_test,algo_arg",
                          TESTDATA)
 def test_vboot(u_boot_console, name, sha_algo, padding, sign_options, required,
-               full_test):
+               full_test, algo_arg):
     """Test verified boot signing with mkimage and verification with 'bootm'.
 
     This works using sandbox only as it needs to update the device tree used
@@ -219,7 +220,7 @@ def test_vboot(u_boot_console, name, sha_algo, padding, sign_options, required,
         # Build the FIT, but don't sign anything yet
         cons.log.action('%s: Test FIT with signed images' % sha_algo)
         make_fit('sign-images-%s%s.its' % (sha_algo, padding))
-        run_bootm(sha_algo, 'unsigned images', 'dev-', True)
+        run_bootm(sha_algo, 'unsigned images', ' - OK' if algo_arg else 'dev-', True)
 
         # Sign images with our dev keys
         sign_fit(sha_algo, sign_options)
@@ -230,7 +231,7 @@ def test_vboot(u_boot_console, name, sha_algo, padding, sign_options, required,
 
         cons.log.action('%s: Test FIT with signed configuration' % sha_algo)
         make_fit('sign-configs-%s%s.its' % (sha_algo, padding))
-        run_bootm(sha_algo, 'unsigned config', '%s+ OK' % sha_algo, True)
+        run_bootm(sha_algo, 'unsigned config', '%s+ OK' % ('sha256' if algo_arg else sha_algo), True)
 
         # Sign images with our dev keys
         sign_fit(sha_algo, sign_options)

test/py/tests/vboot/sign-configs-algo-arg.its

@@ -0,0 +1,44 @@
+/dts-v1/;
+
+/ {
+	description = "Chrome OS kernel image with one or more FDT blobs";
+	#address-cells = <1>;
+
+	images {
+		kernel {
+			data = /incbin/("test-kernel.bin");
+			type = "kernel_noload";
+			arch = "sandbox";
+			os = "linux";
+			compression = "none";
+			load = <0x4>;
+			entry = <0x8>;
+			kernel-version = <1>;
+			hash-1 {
+				algo = "sha256";
+			};
+		};
+		fdt-1 {
+			description = "snow";
+			data = /incbin/("sandbox-kernel.dtb");
+			type = "flat_dt";
+			arch = "sandbox";
+			compression = "none";
+			fdt-version = <1>;
+			hash-1 {
+				algo = "sha256";
+			};
+		};
+	};
+	configurations {
+		default = "conf-1";
+		conf-1 {
+			kernel = "kernel";
+			fdt = "fdt-1";
+			signature {
+				key-name-hint = "dev";
+				sign-images = "fdt", "kernel";
+			};
+		};
+	};
+};

test/py/tests/vboot/sign-images-algo-arg.its

@@ -0,0 +1,40 @@
+/dts-v1/;
+
+/ {
+	description = "Chrome OS kernel image with one or more FDT blobs";
+	#address-cells = <1>;
+
+	images {
+		kernel {
+			data = /incbin/("test-kernel.bin");
+			type = "kernel_noload";
+			arch = "sandbox";
+			os = "linux";
+			compression = "none";
+			load = <0x4>;
+			entry = <0x8>;
+			kernel-version = <1>;
+			signature {
+				key-name-hint = "dev";
+			};
+		};
+		fdt-1 {
+			description = "snow";
+			data = /incbin/("sandbox-kernel.dtb");
+			type = "flat_dt";
+			arch = "sandbox";
+			compression = "none";
+			fdt-version = <1>;
+			signature {
+				key-name-hint = "dev";
+			};
+		};
+	};
+	configurations {
+		default = "conf-1";
+		conf-1 {
+			kernel = "kernel";
+			fdt = "fdt-1";
+		};
+	};
+};

tools/env/fw_env.c

@@ -346,7 +346,7 @@ static int ubi_write(int fd, const void *buf, size_t count)
 	return 0;
 }
 
-static int flash_io(int mode);
+static int flash_io(int mode, void *buf, size_t count);
 static int parse_config(struct env_opts *opts);
 
 #if defined(CONFIG_FILE)
@@ -516,7 +516,7 @@ int fw_env_flush(struct env_opts *opts)
 	*environment.crc = crc32(0, (uint8_t *) environment.data, ENV_SIZE);
 
 	/* write environment back to flash */
-	if (flash_io(O_RDWR)) {
+	if (flash_io(O_RDWR, environment.image, CUR_ENVSIZE)) {
 		fprintf(stderr, "Error: can't write fw_env to flash\n");
 		return -1;
 	}
@@ -1185,7 +1185,8 @@ static int flash_flag_obsolete(int dev, int fd, off_t offset)
 	return rc;
 }
 
-static int flash_write(int fd_current, int fd_target, int dev_target)
+static int flash_write(int fd_current, int fd_target, int dev_target, void *buf,
+		       size_t count)
 {
 	int rc;
 
@@ -1212,11 +1213,10 @@ static int flash_write(int fd_current, int fd_target, int dev_target)
 	if (IS_UBI(dev_target)) {
 		if (ubi_update_start(fd_target, CUR_ENVSIZE) < 0)
 			return -1;
-		return ubi_write(fd_target, environment.image, CUR_ENVSIZE);
+		return ubi_write(fd_target, buf, count);
 	}
 
-	rc = flash_write_buf(dev_target, fd_target, environment.image,
+	rc = flash_write_buf(dev_target, fd_target, buf, count);
-			     CUR_ENVSIZE);
 	if (rc < 0)
 		return rc;
 
@@ -1235,17 +1235,17 @@ static int flash_write(int fd_current, int fd_target, int dev_target)
 	return 0;
 }
 
-static int flash_read(int fd)
+static int flash_read(int fd, void *buf, size_t count)
 {
 	int rc;
 
 	if (IS_UBI(dev_current)) {
 		DEVTYPE(dev_current) = MTD_ABSENT;
 
-		return ubi_read(fd, environment.image, CUR_ENVSIZE);
+		return ubi_read(fd, buf, count);
 	}
 
-	rc = flash_read_buf(dev_current, fd, environment.image, CUR_ENVSIZE,
+	rc = flash_read_buf(dev_current, fd, buf, count,
 			    DEVOFFSET(dev_current));
 	if (rc != CUR_ENVSIZE)
 		return -1;
@@ -1291,7 +1291,7 @@ err:
 	return rc;
 }
 
-static int flash_io_write(int fd_current)
+static int flash_io_write(int fd_current, void *buf, size_t count)
 {
 	int fd_target = -1, rc, dev_target;
 	const char *dname, *target_temp = NULL;
@@ -1322,7 +1322,7 @@ static int flash_io_write(int fd_current)
 			fd_target = fd_current;
 	}
 
-	rc = flash_write(fd_current, fd_target, dev_target);
+	rc = flash_write(fd_current, fd_target, dev_target, buf, count);
 
 	if (fsync(fd_current) && !(errno == EINVAL || errno == EROFS)) {
 		fprintf(stderr,
@@ -1377,7 +1377,7 @@ static int flash_io_write(int fd_current)
 	return rc;
 }
 
-static int flash_io(int mode)
+static int flash_io(int mode, void *buf, size_t count)
 {
 	int fd_current, rc;
 
@@ -1391,9 +1391,9 @@ static int flash_io(int mode)
 	}
 
 	if (mode == O_RDWR) {
-		rc = flash_io_write(fd_current);
+		rc = flash_io_write(fd_current, buf, count);
 	} else {
-		rc = flash_read(fd_current);
+		rc = flash_read(fd_current, buf, count);
 	}
 
 	if (close(fd_current)) {
@@ -1421,9 +1421,6 @@ int fw_env_open(struct env_opts *opts)
 
 	int ret;
 
-	struct env_image_single *single;
-	struct env_image_redundant *redundant;
-
 	if (!opts)
 		opts = &default_opts;
 
@@ -1439,40 +1436,37 @@ int fw_env_open(struct env_opts *opts)
 		goto open_cleanup;
 	}
 
-	/* read environment from FLASH to local buffer */
-	environment.image = addr0;
-
-	if (have_redund_env) {
-		redundant = addr0;
-		environment.crc = &redundant->crc;
-		environment.flags = &redundant->flags;
-		environment.data = redundant->data;
-	} else {
-		single = addr0;
-		environment.crc = &single->crc;
-		environment.flags = NULL;
-		environment.data = single->data;
-	}
-
 	dev_current = 0;
-	if (flash_io(O_RDONLY)) {
+	if (flash_io(O_RDONLY, addr0, CUR_ENVSIZE)) {
 		ret = -EIO;
 		goto open_cleanup;
 	}
 
-	crc0 = crc32(0, (uint8_t *)environment.data, ENV_SIZE);
-
-	crc0_ok = (crc0 == *environment.crc);
 	if (!have_redund_env) {
+		struct env_image_single *single = addr0;
+
+		crc0 = crc32(0, (uint8_t *)single->data, ENV_SIZE);
+		crc0_ok = (crc0 == single->crc);
 		if (!crc0_ok) {
 			fprintf(stderr,
 				"Warning: Bad CRC, using default environment\n");
-			memcpy(environment.data, default_environment,
+			memcpy(single->data, default_environment,
 			       sizeof(default_environment));
 			environment.dirty = 1;
 		}
+
+		environment.image = addr0;
+		environment.crc = &single->crc;
+		environment.flags = NULL;
+		environment.data = single->data;
 	} else {
-		flag0 = *environment.flags;
+		struct env_image_redundant *redundant0 = addr0;
+		struct env_image_redundant *redundant1;
+
+		crc0 = crc32(0, (uint8_t *)redundant0->data, ENV_SIZE);
+		crc0_ok = (crc0 == redundant0->crc);
+
+		flag0 = redundant0->flags;
 
 		dev_current = 1;
 		addr1 = calloc(1, CUR_ENVSIZE);
@@ -1483,14 +1477,9 @@ int fw_env_open(struct env_opts *opts)
 			ret = -ENOMEM;
 			goto open_cleanup;
 		}
-		redundant = addr1;
+		redundant1 = addr1;
 
-		/*
+		if (flash_io(O_RDONLY, addr1, CUR_ENVSIZE)) {
-		 * have to set environment.image for flash_read(), careful -
-		 * other pointers in environment still point inside addr0
-		 */
-		environment.image = addr1;
-		if (flash_io(O_RDONLY)) {
 			ret = -EIO;
 			goto open_cleanup;
 		}
@@ -1518,18 +1507,12 @@ int fw_env_open(struct env_opts *opts)
 			goto open_cleanup;
 		}
 
-		crc1 = crc32(0, (uint8_t *)redundant->data, ENV_SIZE);
+		crc1 = crc32(0, (uint8_t *)redundant1->data, ENV_SIZE);
 
-		crc1_ok = (crc1 == redundant->crc);
+		crc1_ok = (crc1 == redundant1->crc);
-		flag1 = redundant->flags;
+		flag1 = redundant1->flags;
 
-		/*
+		if (memcmp(redundant0->data, redundant1->data, ENV_SIZE) ||
-		 * environment.data still points to ((struct
-		 * env_image_redundant *)addr0)->data. If the two
-		 * environments differ, or one has bad crc, force a
-		 * write-out by marking the environment dirty.
-		 */
-		if (memcmp(environment.data, redundant->data, ENV_SIZE) ||
 		    !crc0_ok || !crc1_ok)
 			environment.dirty = 1;
 
@@ -1540,7 +1523,7 @@ int fw_env_open(struct env_opts *opts)
 		} else if (!crc0_ok && !crc1_ok) {
 			fprintf(stderr,
 				"Warning: Bad CRC, using default environment\n");
-			memcpy(environment.data, default_environment,
+			memcpy(redundant0->data, default_environment,
 			       sizeof(default_environment));
 			environment.dirty = 1;
 			dev_current = 0;
@@ -1586,13 +1569,15 @@ int fw_env_open(struct env_opts *opts)
 		 */
 		if (dev_current) {
 			environment.image = addr1;
-			environment.crc = &redundant->crc;
+			environment.crc = &redundant1->crc;
-			environment.flags = &redundant->flags;
+			environment.flags = &redundant1->flags;
-			environment.data = redundant->data;
+			environment.data = redundant1->data;
 			free(addr0);
 		} else {
 			environment.image = addr0;
-			/* Other pointers are already set */
+			environment.crc = &redundant0->crc;
+			environment.flags = &redundant0->flags;
+			environment.data = redundant0->data;
 			free(addr1);
 		}
 #ifdef DEBUG

tools/imagetool.h

@@ -71,7 +71,9 @@ struct image_tool_params {
 	const char *keydest;	/* Destination .dtb for public key */
 	const char *keyfile;	/* Filename of private or public key */
 	const char *comment;	/* Comment to add to signature node */
-	const char *algo_name;	/* Algorithm name to use hashing/signing */
+	/* Algorithm name to use for hashing/signing or NULL to use the one
+	 * specified in the its */
+	const char *algo_name;
 	int require_keys;	/* 1 to mark signing keys as 'required' */
 	int file_size;		/* Total size of output file */
 	int orig_file_size;	/* Original size for file before padding */