Merge remote-tracking branch 'origin/master'

23 files changed, 966 insertions, 68 deletions

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 23c9649..bfedbe4 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -42,10 +42,11 @@
  */
 
 /**
- * Request ownership of a GPIO.
+ * Request a gpio. This should be called before any of the other functions
+ * are used on this gpio.
  *
- * @param gpio	GPIO number
- * @param label	Name given to the GPIO
+ * @param gp	GPIO number
+ * @param label	User label for this GPIO
  * @return 0 if ok, -1 on error
  */
 int gpio_request(unsigned gpio, const char *label);
@@ -93,14 +94,4 @@ int gpio_get_value(unsigned gpio);
  * @return 0 if ok, -1 on error
  */
 int gpio_set_value(unsigned gpio, int value);
-
-/**
- * Request a gpio. This should be called before any of the other functions
- * are used on this gpio.
- *
- * @param gp	GPIO number
- * @param label	User label for this GPIO
- * @return 0 if ok, -1 on error
- */
-int gpio_request(unsigned gpio, const char *label);
 #endif	/* _ASM_GENERIC_GPIO_H_ */
diff --git a/include/command.h b/include/command.h
index 10bc260..476e7cf 100644
--- a/include/command.h
+++ b/include/command.h
@@ -89,10 +89,10 @@ extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *
  */
 
 #if defined(CONFIG_CMD_MEMORY)		\
-    || defined(CONFIG_CMD_I2C)		\
-    || defined(CONFIG_CMD_ITEST)	\
-    || defined(CONFIG_CMD_PCI)		\
-    || defined(CONFIG_CMD_PORTIO)
+	|| defined(CONFIG_CMD_I2C)	\
+	|| defined(CONFIG_CMD_ITEST)	\
+	|| defined(CONFIG_CMD_PCI)	\
+	|| defined(CONFIG_CMD_PORTIO)
 #define CMD_DATA_SIZE
 extern int cmd_get_data_size(char* arg, int default_size);
 #endif
diff --git a/include/common.h b/include/common.h
index 5e3c5ee..d0bf1e8 100644
--- a/include/common.h
+++ b/include/common.h
@@ -340,6 +340,11 @@ int	envmatch     (uchar *, int);
 char	*getenv	     (const char *);
 int	getenv_f     (const char *name, char *buf, unsigned len);
 ulong getenv_ulong(const char *name, int base, ulong default_val);
+/*
+ * Read an environment variable as a boolean
+ * Return -1 if variable does not exist (default to true)
+ */
+int getenv_yesno(const char *var);
 int	saveenv	     (void);
 int	setenv	     (const char *, const char *);
 int setenv_ulong(const char *varname, ulong value);
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index f434cd0..e82f642 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -40,12 +40,15 @@
 #define CONFIG_CMD_FDOS		/* Floppy DOS support		*/
 #define CONFIG_CMD_FLASH	/* flinfo, erase, protect	*/
 #define CONFIG_CMD_FPGA		/* FPGA configuration Support	*/
+#define CONFIG_CMD_GETTIME	/* Get time since boot         */
+#define CONFIG_CMD_HASH		/* calculate hash / digest	*/
 #define CONFIG_CMD_HWFLOW	/* RTS/CTS hw flow control	*/
 #define CONFIG_CMD_I2C		/* I2C serial bus support	*/
 #define CONFIG_CMD_IDE		/* IDE harddisk support		*/
 #define CONFIG_CMD_IMI		/* iminfo			*/
 #define CONFIG_CMD_IMLS		/* List all found images	*/
 #define CONFIG_CMD_IMMAP	/* IMMR dump support		*/
+#define CONFIG_CMD_IO		/* Access to X86 IO space	*/
 #define CONFIG_CMD_IRQ		/* irqinfo			*/
 #define CONFIG_CMD_ITEST	/* Integer (and string) test	*/
 #define CONFIG_CMD_JFFS2	/* JFFS2 Support		*/
@@ -70,6 +73,7 @@
 #define CONFIG_CMD_REGINFO	/* Register dump		*/
 #define CONFIG_CMD_REISER	/* Reiserfs support		*/
 #define CONFIG_CMD_RARP		/* rarpboot support		*/
+#define CONFIG_CMD_READ		/* Read data from partition	*/
 #define CONFIG_CMD_RUN		/* run command in env variable	*/
 #define CONFIG_CMD_SAVEENV	/* saveenv			*/
 #define CONFIG_CMD_SAVES	/* save S record dump		*/
diff --git a/include/configs/omap3_evm.h b/include/configs/omap3_evm.h
index b4d925e..fc6e782 100644
--- a/include/configs/omap3_evm.h
+++ b/include/configs/omap3_evm.h
@@ -95,10 +95,7 @@
 #define CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME	"u-boot.img"
 
 /* Partition tables */
-/* Only need DOS partition support for SPL, currently */
-#ifndef CONFIG_SPL_BUILD
 #define CONFIG_EFI_PARTITION
-#endif
 #define CONFIG_DOS_PARTITION
 
 /* USB
diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h
index c0f8622..39a347a 100644
--- a/include/configs/smdk5250.h
+++ b/include/configs/smdk5250.h
@@ -203,6 +203,7 @@
 #define CONFIG_I2C_MULTI_BUS
 #define CONFIG_MAX_I2C_NUM	8
 #define CONFIG_SYS_I2C_SLAVE    0x0
+#define CONFIG_I2C_EDID
 
 /* Ethernet Controllor Driver */
 #ifdef CONFIG_CMD_NET
@@ -215,4 +216,10 @@
 /* Enable devicetree support */
 #define CONFIG_OF_LIBFDT
 
+/* SHA hashing */
+#define CONFIG_CMD_HASH
+#define CONFIG_HASH_VERIFY
+#define CONFIG_SHA1
+#define CONFIG_SHA256
+
 #endif	/* __CONFIG_H */
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 355029e..94ba55e 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -98,6 +98,7 @@
 #undef CONFIG_CMD_MTDPARTS
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_DFU
+#define CONFIG_CMD_GPT
 
 /* FAT */
 #define CONFIG_CMD_FAT
@@ -122,6 +123,26 @@
 #define CONFIG_BOOTBLOCK		"10"
 #define CONFIG_ENV_COMMON_BOOT		"${console} ${meminfo}"
 
+/* Tizen - partitions definitions */
+#define PARTS_CSA		"csa-mmc"
+#define PARTS_BOOTLOADER	"u-boot"
+#define PARTS_BOOT		"boot"
+#define PARTS_ROOT		"platform"
+#define PARTS_DATA		"data"
+#define PARTS_CSC		"csc"
+#define PARTS_UMS		"ums"
+
+#define PARTS_DEFAULT \
+	"uuid_disk=${uuid_gpt_disk};" \
+	"name="PARTS_CSA",size=8MiB,uuid=${uuid_gpt_"PARTS_CSA"};" \
+	"name="PARTS_BOOTLOADER",size=60MiB," \
+		"uuid=${uuid_gpt_"PARTS_BOOTLOADER"};" \
+	"name="PARTS_BOOT",size=100MiB,uuid=${uuid_gpt_"PARTS_BOOT"};" \
+	"name="PARTS_ROOT",size=1GiB,uuid=${uuid_gpt_"PARTS_ROOT"};" \
+	"name="PARTS_DATA",size=3GiB,uuid=${uuid_gpt_"PARTS_DATA"};" \
+	"name="PARTS_CSC",size=150MiB,uuid=${uuid_gpt_"PARTS_CSC"};" \
+	"name="PARTS_UMS",size=-,uuid=${uuid_gpt_"PARTS_UMS"}\0" \
+
 #define CONFIG_DFU_ALT \
 	"dfu_alt_info=" \
 	"u-boot mmc 80 400;" \
@@ -171,7 +192,8 @@
 	"mmcbootpart=2\0" \
 	"mmcrootpart=3\0" \
 	"opts=always_resume=1\0" \
-	CONFIG_DFU_ALT
+	"partitions=" PARTS_DEFAULT \
+	CONFIG_DFU_ALT \
 
 /* Miscellaneous configurable options */
 #define CONFIG_SYS_LONGHELP		/* undef to save memory */
@@ -208,6 +230,10 @@
 
 #define CONFIG_DOS_PARTITION
 
+/* GPT */
+#define CONFIG_EFI_PARTITION
+#define CONFIG_PARTITION_UUIDS
+
 #define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_LOAD_ADDR - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_CACHELINE_SIZE       32
 
diff --git a/include/edid.h b/include/edid.h
new file mode 100644
index 0000000..4788de9
--- /dev/null
+++ b/include/edid.h
@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ *
+ * (C) Copyright 2010
+ * Petr Stetiar <ynezz@true.cz>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Contains stolen code from ddcprobe project which is:
+ * Copyright (C) Nalin Dahyabhai <bigfun@pobox.com>
+ *
+ */
+
+#ifndef __EDID_H_
+#define __EDID_H_
+
+#include <linux/types.h>
+
+#define GET_BIT(_x, _pos) \
+	(((_x) >> (_pos)) & 1)
+#define GET_BITS(_x, _pos_msb, _pos_lsb) \
+	(((_x) >> (_pos_lsb)) & ((1 << ((_pos_msb) - (_pos_lsb) + 1)) - 1))
+
+/* Aspect ratios used in EDID info. */
+enum edid_aspect {
+	ASPECT_625 = 0,
+	ASPECT_75,
+	ASPECT_8,
+	ASPECT_5625,
+};
+
+/* Detailed timing information used in EDID v1.x */
+struct edid_detailed_timing {
+	unsigned char pixel_clock[2];
+#define EDID_DETAILED_TIMING_PIXEL_CLOCK(_x) \
+	(((((uint32_t)(_x).pixel_clock[1]) << 8) + \
+	 (_x).pixel_clock[0]) * 10000)
+	unsigned char horizontal_active;
+	unsigned char horizontal_blanking;
+	unsigned char horizontal_active_blanking_hi;
+#define EDID_DETAILED_TIMING_HORIZONTAL_ACTIVE(_x) \
+	((GET_BITS((_x).horizontal_active_blanking_hi, 7, 4) << 8) + \
+	 (_x).horizontal_active)
+#define EDID_DETAILED_TIMING_HORIZONTAL_BLANKING(_x) \
+	((GET_BITS((_x).horizontal_active_blanking_hi, 3, 0) << 8) + \
+	 (_x).horizontal_blanking)
+	unsigned char vertical_active;
+	unsigned char vertical_blanking;
+	unsigned char vertical_active_blanking_hi;
+#define EDID_DETAILED_TIMING_VERTICAL_ACTIVE(_x) \
+	((GET_BITS((_x).vertical_active_blanking_hi, 7, 4) << 8) + \
+	 (_x).vertical_active)
+#define EDID_DETAILED_TIMING_VERTICAL_BLANKING(_x) \
+	((GET_BITS((_x).vertical_active_blanking_hi, 3, 0) << 8) + \
+	 (_x).vertical_blanking)
+	unsigned char hsync_offset;
+	unsigned char hsync_pulse_width;
+	unsigned char sync_offset_pulse_width;
+	unsigned char hsync_vsync_offset_pulse_width_hi;
+#define EDID_DETAILED_TIMING_HSYNC_OFFSET(_x) \
+	((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 7, 6) << 8) + \
+	 (_x).hsync_offset)
+#define EDID_DETAILED_TIMING_HSYNC_PULSE_WIDTH(_x) \
+	((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 5, 4) << 8) + \
+	 (_x).hsync_pulse_width)
+#define EDID_DETAILED_TIMING_VSYNC_OFFSET(_x) \
+	((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 3, 2) << 4) + \
+	 GET_BITS((_x).vsync_offset_pulse_width, 7, 4))
+#define EDID_DETAILED_TIMING_VSYNC_PULSE_WIDTH(_x) \
+	((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 1, 0) << 4) + \
+	 GET_BITS((_x).vsync_offset_pulse_width, 3, 0))
+	unsigned char himage_size;
+	unsigned char vimage_size;
+	unsigned char himage_vimage_size_hi;
+#define EDID_DETAILED_TIMING_HIMAGE_SIZE(_x) \
+	((GET_BITS((_x).himage_vimage_size_hi, 7, 4) << 8) + (_x).himage_size)
+#define EDID_DETAILED_TIMING_VIMAGE_SIZE(_x) \
+	((GET_BITS((_x).himage_vimage_size_hi, 3, 0) << 8) + (_x).vimage_size)
+	unsigned char hborder;
+	unsigned char vborder;
+	unsigned char flags;
+#define EDID_DETAILED_TIMING_FLAG_INTERLACED(_x) \
+	GET_BIT((_x).flags, 7)
+#define EDID_DETAILED_TIMING_FLAG_STEREO(_x) \
+	GET_BITS((_x).flags, 6, 5)
+#define EDID_DETAILED_TIMING_FLAG_DIGITAL_COMPOSITE(_x) \
+	GET_BITS((_x).flags, 4, 3)
+#define EDID_DETAILED_TIMING_FLAG_POLARITY(_x) \
+	GET_BITS((_x).flags, 2, 1)
+#define EDID_DETAILED_TIMING_FLAG_INTERLEAVED(_x) \
+	GET_BIT((_x).flags, 0)
+} __attribute__ ((__packed__));
+
+enum edid_monitor_descriptor_types {
+	EDID_MONITOR_DESCRIPTOR_SERIAL = 0xff,
+	EDID_MONITOR_DESCRIPTOR_ASCII = 0xfe,
+	EDID_MONITOR_DESCRIPTOR_RANGE = 0xfd,
+	EDID_MONITOR_DESCRIPTOR_NAME = 0xfc,
+};
+
+struct edid_monitor_descriptor {
+	uint16_t zero_flag_1;
+	unsigned char zero_flag_2;
+	unsigned char type;
+	unsigned char zero_flag_3;
+	union {
+		char string[13];
+		struct {
+			unsigned char vertical_min;
+			unsigned char vertical_max;
+			unsigned char horizontal_min;
+			unsigned char horizontal_max;
+			unsigned char pixel_clock_max;
+			unsigned char gtf_data[8];
+		} range_data;
+	} data;
+} __attribute__ ((__packed__));
+
+struct edid1_info {
+	unsigned char header[8];
+	unsigned char manufacturer_name[2];
+#define EDID1_INFO_MANUFACTURER_NAME_ZERO(_x) \
+	GET_BIT(((_x).manufacturer_name[0]), 7)
+#define EDID1_INFO_MANUFACTURER_NAME_CHAR1(_x) \
+	GET_BITS(((_x).manufacturer_name[0]), 6, 2)
+#define EDID1_INFO_MANUFACTURER_NAME_CHAR2(_x) \
+	((GET_BITS(((_x).manufacturer_name[0]), 1, 0) << 3) + \
+	 GET_BITS(((_x).manufacturer_name[1]), 7, 5))
+#define EDID1_INFO_MANUFACTURER_NAME_CHAR3(_x) \
+	GET_BITS(((_x).manufacturer_name[1]), 4, 0)
+	unsigned char product_code[2];
+#define EDID1_INFO_PRODUCT_CODE(_x) \
+	(((uint16_t)(_x).product_code[1] << 8) + (_x).product_code[0])
+	unsigned char serial_number[4];
+#define EDID1_INFO_SERIAL_NUMBER(_x) \
+	(((uint32_t)(_x).serial_number[3] << 24) + \
+	 ((_x).serial_number[2] << 16) + ((_x).serial_number[1] << 8) + \
+	 (_x).serial_number[0])
+	unsigned char week;
+	unsigned char year;
+	unsigned char version;
+	unsigned char revision;
+	unsigned char video_input_definition;
+#define EDID1_INFO_VIDEO_INPUT_DIGITAL(_x) \
+	GET_BIT(((_x).video_input_definition), 7)
+#define EDID1_INFO_VIDEO_INPUT_VOLTAGE_LEVEL(_x) \
+	GET_BITS(((_x).video_input_definition), 6, 5)
+#define EDID1_INFO_VIDEO_INPUT_BLANK_TO_BLACK(_x) \
+	GET_BIT(((_x).video_input_definition), 4)
+#define EDID1_INFO_VIDEO_INPUT_SEPARATE_SYNC(_x) \
+	GET_BIT(((_x).video_input_definition), 3)
+#define EDID1_INFO_VIDEO_INPUT_COMPOSITE_SYNC(_x) \
+	GET_BIT(((_x).video_input_definition), 2)
+#define EDID1_INFO_VIDEO_INPUT_SYNC_ON_GREEN(_x) \
+	GET_BIT(((_x).video_input_definition), 1)
+#define EDID1_INFO_VIDEO_INPUT_SERRATION_V(_x) \
+	GET_BIT(((_x).video_input_definition), 0)
+	unsigned char max_size_horizontal;
+	unsigned char max_size_vertical;
+	unsigned char gamma;
+	unsigned char feature_support;
+#define EDID1_INFO_FEATURE_STANDBY(_x) \
+	GET_BIT(((_x).feature_support), 7)
+#define EDID1_INFO_FEATURE_SUSPEND(_x) \
+	GET_BIT(((_x).feature_support), 6)
+#define EDID1_INFO_FEATURE_ACTIVE_OFF(_x) \
+	GET_BIT(((_x).feature_support), 5)
+#define EDID1_INFO_FEATURE_DISPLAY_TYPE(_x) \
+	GET_BITS(((_x).feature_support), 4, 3)
+#define EDID1_INFO_FEATURE_RGB(_x) \
+	GET_BIT(((_x).feature_support), 2)
+#define EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(_x) \
+	GET_BIT(((_x).feature_support), 1)
+#define EDID1_INFO_FEATURE_DEFAULT_GTF_SUPPORT(_x) \
+	GET_BIT(((_x).feature_support), 0)
+	unsigned char color_characteristics[10];
+	unsigned char established_timings[3];
+#define EDID1_INFO_ESTABLISHED_TIMING_720X400_70(_x) \
+	GET_BIT(((_x).established_timings[0]), 7)
+#define EDID1_INFO_ESTABLISHED_TIMING_720X400_88(_x) \
+	GET_BIT(((_x).established_timings[0]), 6)
+#define EDID1_INFO_ESTABLISHED_TIMING_640X480_60(_x) \
+	GET_BIT(((_x).established_timings[0]), 5)
+#define EDID1_INFO_ESTABLISHED_TIMING_640X480_67(_x) \
+	GET_BIT(((_x).established_timings[0]), 4)
+#define EDID1_INFO_ESTABLISHED_TIMING_640X480_72(_x) \
+	GET_BIT(((_x).established_timings[0]), 3)
+#define EDID1_INFO_ESTABLISHED_TIMING_640X480_75(_x) \
+	GET_BIT(((_x).established_timings[0]), 2)
+#define EDID1_INFO_ESTABLISHED_TIMING_800X600_56(_x) \
+	GET_BIT(((_x).established_timings[0]), 1)
+#define EDID1_INFO_ESTABLISHED_TIMING_800X600_60(_x) \
+	GET_BIT(((_x).established_timings[0]), 0)
+#define EDID1_INFO_ESTABLISHED_TIMING_800X600_72(_x) \
+	GET_BIT(((_x).established_timings[1]), 7)
+#define EDID1_INFO_ESTABLISHED_TIMING_800X600_75(_x) \
+	GET_BIT(((_x).established_timings[1]), 6)
+#define EDID1_INFO_ESTABLISHED_TIMING_832X624_75(_x) \
+	GET_BIT(((_x).established_timings[1]), 5)
+#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_87I(_x) \
+	GET_BIT(((_x).established_timings[1]), 4)
+#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_60(_x) \
+	GET_BIT(((_x).established_timings[1]), 3)
+#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_70(_x) \
+	GET_BIT(((_x).established_timings[1]), 2)
+#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_75(_x) \
+	GET_BIT(((_x).established_timings[1]), 1)
+#define EDID1_INFO_ESTABLISHED_TIMING_1280X1024_75(_x) \
+	GET_BIT(((_x).established_timings[1]), 0)
+#define EDID1_INFO_ESTABLISHED_TIMING_1152X870_75(_x) \
+	GET_BIT(((_x).established_timings[2]), 7)
+	struct {
+		unsigned char xresolution;
+		unsigned char aspect_vfreq;
+	} __attribute__((__packed__)) standard_timings[8];
+#define EDID1_INFO_STANDARD_TIMING_XRESOLUTION(_x, _i) \
+	(((_x).standard_timings[_i]).xresolution)
+#define EDID1_INFO_STANDARD_TIMING_ASPECT(_x, _i) \
+	GET_BITS(((_x).standard_timings[_i].aspect_vfreq), 7, 6)
+#define EDID1_INFO_STANDARD_TIMING_VFREQ(_x, _i) \
+	GET_BITS(((_x).standard_timings[_i].aspect_vfreq), 5, 0)
+	union {
+		unsigned char timing[72];
+		struct edid_monitor_descriptor descriptor[4];
+	} monitor_details;
+	unsigned char extension_flag;
+	unsigned char checksum;
+} __attribute__ ((__packed__));
+
+/**
+ * Print the EDID info.
+ *
+ * @param edid_info	The EDID info to be printed
+ */
+void edid_print_info(struct edid1_info *edid_info);
+
+/**
+ * Check the EDID info.
+ *
+ * @param info  The EDID info to be checked
+ * @return 0 on valid, or -1 on invalid
+ */
+int edid_check_info(struct edid1_info *info);
+
+/**
+ * Get the horizontal and vertical rate ranges of the monitor.
+ *
+ * @param edid	The EDID info
+ * @param hmin	Returns the minimum horizontal rate
+ * @param hmax	Returns the maxium horizontal rate
+ * @param vmin	Returns the minimum vertical rate
+ * @param vmax	Returns the maxium vertical rate
+ * @return 0 on success, or -1 on error
+ */
+int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin,
+		    unsigned int *hmax, unsigned int *vmin,
+		    unsigned int *vmax);
+
+#endif /* __EDID_H_ */
diff --git a/include/env_attr.h b/include/env_attr.h
new file mode 100644
index 0000000..6ef114f
--- /dev/null
+++ b/include/env_attr.h
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ENV_ATTR_H__
+#define __ENV_ATTR_H__
+
+#define ENV_ATTR_LIST_DELIM	','
+#define ENV_ATTR_SEP		':'
+
+/*
+ * env_attr_walk takes as input an "attr_list" that takes the form:
+ *	attributes = [^,:\s]*
+ *	entry = name[:attributes]
+ *	list = entry[,list]
+ * It will call the "callback" function with the "name" and attribute as "value"
+ * The callback may return a non-0 to abort the list walk.
+ * This return value will be passed through to the caller.
+ * 0 is returned on success.
+ */
+extern int env_attr_walk(const char *attr_list,
+	int (*callback)(const char *name, const char *value));
+
+/*
+ * env_attr_lookup takes as input an "attr_list" with the same form as above.
+ * It also takes as input a "name" to look for.
+ * If the name is found in the list, it's value is copied into "attributes".
+ * There is no protection on attributes being too small for the value.
+ * It returns -1 if attributes is NULL, 1 if "name" is not found, 2 if
+ * "attr_list" is NULL.
+ * Returns 0 on success.
+ */
+extern int env_attr_lookup(const char *attr_list, const char *name,
+	char *attributes);
+
+#endif /* __ENV_ATTR_H__ */
diff --git a/include/env_callback.h b/include/env_callback.h
new file mode 100644
index 0000000..47fdc6f
--- /dev/null
+++ b/include/env_callback.h
@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ENV_CALLBACK_H__
+#define __ENV_CALLBACK_H__
+
+#include <env_flags.h>
+#include <linker_lists.h>
+#include <search.h>
+
+#define ENV_CALLBACK_VAR ".callbacks"
+
+/* Board configs can define additional static callback bindings */
+#ifndef CONFIG_ENV_CALLBACK_LIST_STATIC
+#define CONFIG_ENV_CALLBACK_LIST_STATIC
+#endif
+
+#ifdef CONFIG_SILENT_CONSOLE
+#define SILENT_CALLBACK "silent:silent,"
+#else
+#define SILENT_CALLBACK
+#endif
+
+/*
+ * This list of callback bindings is static, but may be overridden by defining
+ * a new association in the ".callbacks" environment variable.
+ */
+#define ENV_CALLBACK_LIST_STATIC ENV_CALLBACK_VAR ":callbacks," \
+	ENV_FLAGS_VAR ":flags," \
+	"baudrate:baudrate," \
+	"bootfile:bootfile," \
+	"loadaddr:loadaddr," \
+	SILENT_CALLBACK \
+	"stdin:console,stdout:console,stderr:console," \
+	CONFIG_ENV_CALLBACK_LIST_STATIC
+
+struct env_clbk_tbl {
+	const char *name;		/* Callback name */
+	int (*callback)(const char *name, const char *value, enum env_op op,
+		int flags);
+};
+
+struct env_clbk_tbl *find_env_callback(const char *);
+void env_callback_init(ENTRY *var_entry);
+
+/*
+ * Define a callback that can be associated with variables.
+ * when associated through the ".callbacks" environment variable, the callback
+ * will be executed any time the variable is inserted, overwritten, or deleted.
+ */
+#define U_BOOT_ENV_CALLBACK(name, callback) \
+	ll_entry_declare(struct env_clbk_tbl, name, env_clbk, env_clbk) = \
+	{#name, callback}
+
+#endif /* __ENV_CALLBACK_H__ */
diff --git a/include/env_default.h b/include/env_default.h
index a1db73a..39c5b7c 100644
--- a/include/env_default.h
+++ b/include/env_default.h
@@ -24,6 +24,8 @@
  * MA 02111-1307 USA
  */
 
+#include <env_callback.h>
+
 #ifdef DEFAULT_ENV_INSTANCE_EMBEDDED
 env_t environment __PPCENV__ = {
 	ENV_CRC,	/* CRC Sum */
@@ -36,6 +38,12 @@ static char default_environment[] = {
 #else
 const uchar default_environment[] = {
 #endif
+#ifdef	CONFIG_ENV_CALLBACK_LIST_DEFAULT
+	ENV_CALLBACK_VAR "=" CONFIG_ENV_CALLBACK_LIST_DEFAULT "\0"
+#endif
+#ifdef	CONFIG_ENV_FLAGS_LIST_DEFAULT
+	ENV_FLAGS_VAR "=" CONFIG_ENV_FLAGS_LIST_DEFAULT "\0"
+#endif
 #ifdef	CONFIG_BOOTARGS
 	"bootargs="	CONFIG_BOOTARGS			"\0"
 #endif
diff --git a/include/env_flags.h b/include/env_flags.h
new file mode 100644
index 0000000..d1aa144
--- /dev/null
+++ b/include/env_flags.h
@@ -0,0 +1,172 @@
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ENV_FLAGS_H__
+#define __ENV_FLAGS_H__
+
+enum env_flags_vartype {
+	env_flags_vartype_string,
+	env_flags_vartype_decimal,
+	env_flags_vartype_hex,
+	env_flags_vartype_bool,
+#ifdef CONFIG_CMD_NET
+	env_flags_vartype_ipaddr,
+	env_flags_vartype_macaddr,
+#endif
+	env_flags_vartype_end
+};
+
+enum env_flags_varaccess {
+	env_flags_varaccess_any,
+	env_flags_varaccess_readonly,
+	env_flags_varaccess_writeonce,
+	env_flags_varaccess_changedefault,
+	env_flags_varaccess_end
+};
+
+#define ENV_FLAGS_VAR ".flags"
+#define ENV_FLAGS_ATTR_MAX_LEN 2
+#define ENV_FLAGS_VARTYPE_LOC 0
+#define ENV_FLAGS_VARACCESS_LOC 1
+
+#ifndef CONFIG_ENV_FLAGS_LIST_STATIC
+#define CONFIG_ENV_FLAGS_LIST_STATIC ""
+#endif
+
+#ifdef CONFIG_CMD_NET
+#ifdef CONFIG_ENV_OVERWRITE
+#define ETHADDR_FLAGS "ethaddr:ma,"
+#else
+#ifdef CONFIG_OVERWRITE_ETHADDR_ONCE
+#define ETHADDR_FLAGS "ethaddr:mc,"
+#else
+#define ETHADDR_FLAGS "ethaddr:mo,"
+#endif
+#endif
+#else
+#define ETHADDR_FLAGS ""
+#endif
+
+#ifndef CONFIG_ENV_OVERWRITE
+#define SERIAL_FLAGS "serial#:so,"
+#else
+#define SERIAL_FLAGS ""
+#endif
+
+#define ENV_FLAGS_LIST_STATIC \
+	ETHADDR_FLAGS \
+	SERIAL_FLAGS \
+	CONFIG_ENV_FLAGS_LIST_STATIC
+
+#ifdef CONFIG_CMD_ENV_FLAGS
+/*
+ * Print the whole list of available type flags.
+ */
+void env_flags_print_vartypes(void);
+/*
+ * Print the whole list of available access flags.
+ */
+void env_flags_print_varaccess(void);
+/*
+ * Return the name of the type.
+ */
+const char *env_flags_get_vartype_name(enum env_flags_vartype type);
+/*
+ * Return the name of the access.
+ */
+const char *env_flags_get_varaccess_name(enum env_flags_varaccess access);
+#endif
+
+/*
+ * Parse the flags string from a .flags attribute list into the vartype enum.
+ */
+enum env_flags_vartype env_flags_parse_vartype(const char *flags);
+/*
+ * Parse the flags string from a .flags attribute list into the varaccess enum.
+ */
+enum env_flags_varaccess env_flags_parse_varaccess(const char *flags);
+/*
+ * Parse the binary flags from a hash table entry into the varaccess enum.
+ */
+enum env_flags_varaccess env_flags_parse_varaccess_from_binflags(int binflags);
+
+#ifdef USE_HOSTCC
+/*
+ * Look up the type of a variable directly from the .flags var.
+ */
+enum env_flags_vartype env_flags_get_type(const char *name);
+/*
+ * Look up the access of a variable directly from the .flags var.
+ */
+enum env_flags_varaccess env_flags_get_access(const char *name);
+/*
+ * Validate the newval for its type to conform with the requirements defined by
+ * its flags (directly looked at the .flags var).
+ */
+int env_flags_validate_type(const char *name, const char *newval);
+/*
+ * Validate the newval for its access to conform with the requirements defined
+ * by its flags (directly looked at the .flags var).
+ */
+int env_flags_validate_access(const char *name, int check_mask);
+/*
+ * Validate that the proposed access to variable "name" is valid according to
+ * the defined flags for that variable, if any.
+ */
+int env_flags_validate_varaccess(const char *name, int check_mask);
+/*
+ * Validate the parameters passed to "env set" for type compliance
+ */
+int env_flags_validate_env_set_params(int argc, char * const argv[]);
+
+#else /* !USE_HOSTCC */
+
+#include <search.h>
+
+/*
+ * When adding a variable to the environment, initialize the flags for that
+ * variable.
+ */
+void env_flags_init(ENTRY *var_entry);
+
+/*
+ * Validate the newval for to conform with the requirements defined by its flags
+ */
+int env_flags_validate(const ENTRY *item, const char *newval, enum env_op op,
+	int flag);
+
+#endif /* USE_HOSTCC */
+
+/*
+ * These are the binary flags used in the environment entry->flags variable to
+ * decribe properties of veriables in the table
+ */
+#define ENV_FLAGS_VARTYPE_BIN_MASK			0x00000007
+/* The actual variable type values use the enum value (within the mask) */
+#define ENV_FLAGS_VARACCESS_PREVENT_DELETE		0x00000008
+#define ENV_FLAGS_VARACCESS_PREVENT_CREATE		0x00000010
+#define ENV_FLAGS_VARACCESS_PREVENT_OVERWR		0x00000020
+#define ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR	0x00000040
+#define ENV_FLAGS_VARACCESS_BIN_MASK			0x00000078
+
+#endif /* __ENV_FLAGS_H__ */
diff --git a/include/environment.h b/include/environment.h
index e8ab703..e64b43d 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -164,6 +164,9 @@ extern void env_reloc(void);
 
 #ifndef DO_DEPS_ONLY
 
+#include <env_attr.h>
+#include <env_callback.h>
+#include <env_flags.h>
 #include <search.h>
 
 extern struct hsearch_data env_htab;
@@ -178,6 +181,9 @@ unsigned char env_get_char_memory(int index);
 /* Function that updates CRC of the enironment */
 void env_crc_update(void);
 
+/* Look up the variable from the default environment */
+char *getenv_default(const char *name);
+
 /* [re]set to the default environment */
 void set_default_env(const char *s);
 
@@ -187,15 +193,6 @@ int set_default_vars(int nvars, char * const vars[]);
 /* Import from binary representation into hash table */
 int env_import(const char *buf, int check);
 
-/*
- * Check if variable "name" can be changed from oldval to newval,
- * and if so, apply the changes (e.g. baudrate).
- * When (flag & H_FORCE) is set, it does not print out any error
- * message and forces overwriting of write-once variables.
- */
-int env_check_apply(const char *name, const char *oldval,
-			const char *newval, int flag);
-
 #endif /* DO_DEPS_ONLY */
 
 #endif /* _ENVIRONMENT_H_ */
diff --git a/include/exports.h b/include/exports.h
index 63aa4b2..6cf31aa 100644
--- a/include/exports.h
+++ b/include/exports.h
@@ -23,7 +23,7 @@ char *getenv (const char *name);
 int setenv (const char *varname, const char *varvalue);
 long simple_strtol(const char *cp,char **endp,unsigned int base);
 int strcmp(const char * cs,const char * ct);
-int ustrtoul(const char *cp, char **endp, unsigned int base);
+unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
 #if defined(CONFIG_CMD_I2C)
 int i2c_write (uchar, uint, int , uchar* , int);
 int i2c_read (uchar, uint, int , uchar* , int);
diff --git a/include/hash.h b/include/hash.h
new file mode 100644
index 0000000..34ba558
--- /dev/null
+++ b/include/hash.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _HASH_H
+#define _HASH_H
+
+#ifdef CONFIG_SHA1SUM_VERIFY
+#define CONFIG_HASH_VERIFY
+#endif
+
+struct hash_algo {
+	const char *name;			/* Name of algorithm */
+	int digest_size;			/* Length of digest */
+	/**
+	 * hash_func_ws: Generic hashing function
+	 *
+	 * This is the generic prototype for a hashing function. We only
+	 * have the watchdog version at present.
+	 *
+	 * @input:	Input buffer
+	 * @ilen:	Input buffer length
+	 * @output:	Checksum result (length depends on algorithm)
+	 * @chunk_sz:	Trigger watchdog after processing this many bytes
+	 */
+	void (*hash_func_ws)(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz);
+	int chunk_size;				/* Watchdog chunk size */
+};
+
+/*
+ * Maximum digest size for all algorithms we support. Having this value
+ * avoids a malloc() or C99 local declaration in common/cmd_hash.c.
+ */
+#define HASH_MAX_DIGEST_SIZE	32
+
+/**
+ * hash_command: Process a hash command for a particular algorithm
+ *
+ * This common function is used to implement specific hash commands.
+ *
+ * @algo_name:		Hash algorithm being used
+ * @verify:		Non-zero to enable verify mode
+ * @cmdtp:		Pointer to command table entry
+ * @flag:		Some flags normally 0 (see CMD_FLAG_.. above)
+ * @argc:		Number of arguments (arg 0 must be the command text)
+ * @argv:		Arguments
+ */
+int hash_command(const char *algo_name, int verify, cmd_tbl_t *cmdtp, int flag,
+		 int argc, char * const argv[]);
+
+#endif
diff --git a/include/image.h b/include/image.h
index f54d983..b958b18 100644
--- a/include/image.h
+++ b/include/image.h
@@ -460,7 +460,6 @@ static inline void image_set_name(image_header_t *hdr, const char *name)
 int image_check_hcrc(const image_header_t *hdr);
 int image_check_dcrc(const image_header_t *hdr);
 #ifndef USE_HOSTCC
-int getenv_yesno(char *var);
 ulong getenv_bootm_low(void);
 phys_size_t getenv_bootm_size(void);
 phys_size_t getenv_bootm_mapsize(void);
diff --git a/include/linux/linux_string.h b/include/linux/linux_string.h
new file mode 100644
index 0000000..192b4c9
--- /dev/null
+++ b/include/linux/linux_string.h
@@ -0,0 +1,8 @@
+#ifndef _LINUX_LINUX_STRING_H_
+#define _LINUX_LINUX_STRING_H_
+
+extern char * skip_spaces(const char *);
+
+extern char *strim(char *);
+
+#endif
diff --git a/include/linux/string.h b/include/linux/string.h
index 9a8cbc2..e9b134d 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -38,8 +38,11 @@ extern int strcmp(const char *,const char *);
 #ifndef __HAVE_ARCH_STRNCMP
 extern int strncmp(const char *,const char *,__kernel_size_t);
 #endif
-#if 0 /* not used - was: #ifndef __HAVE_ARCH_STRNICMP */
-extern int strnicmp(const char *, const char *, __kernel_size_t);
+#ifndef __HAVE_ARCH_STRCASECMP
+int strcasecmp(const char *s1, const char *s2);
+#endif
+#ifndef __HAVE_ARCH_STRNCASECMP
+extern int strncasecmp(const char *s1, const char *s2, __kernel_size_t len);
 #endif
 #ifndef __HAVE_ARCH_STRCHR
 extern char * strchr(const char *,int);
@@ -47,10 +50,7 @@ extern char * strchr(const char *,int);
 #ifndef __HAVE_ARCH_STRRCHR
 extern char * strrchr(const char *,int);
 #endif
-extern char * skip_spaces(const char *);
-
-extern char *strim(char *);
-
+#include <linux/linux_string.h>
 #ifndef __HAVE_ARCH_STRSTR
 extern char * strstr(const char *,const char *);
 #endif
diff --git a/include/part.h b/include/part.h
index 27ea283..c58a734 100644
--- a/include/part.h
+++ b/include/part.h
@@ -176,10 +176,62 @@ int   test_part_amiga (block_dev_desc_t *dev_desc);
 #endif
 
 #ifdef CONFIG_EFI_PARTITION
+#include <part_efi.h>
 /* disk/part_efi.c */
 int get_partition_info_efi (block_dev_desc_t * dev_desc, int part, disk_partition_t *info);
 void print_part_efi (block_dev_desc_t *dev_desc);
 int   test_part_efi (block_dev_desc_t *dev_desc);
+
+/**
+ * write_gpt_table() - Write the GUID Partition Table to disk
+ *
+ * @param dev_desc - block device descriptor
+ * @param gpt_h - pointer to GPT header representation
+ * @param gpt_e - pointer to GPT partition table entries
+ *
+ * @return - zero on success, otherwise error
+ */
+int write_gpt_table(block_dev_desc_t *dev_desc,
+		  gpt_header *gpt_h, gpt_entry *gpt_e);
+
+/**
+ * gpt_fill_pte(): Fill the GPT partition table entry
+ *
+ * @param gpt_h - GPT header representation
+ * @param gpt_e - GPT partition table entries
+ * @param partitions - list of partitions
+ * @param parts - number of partitions
+ *
+ * @return zero on success
+ */
+int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
+		disk_partition_t *partitions, int parts);
+
+/**
+ * gpt_fill_header(): Fill the GPT header
+ *
+ * @param dev_desc - block device descriptor
+ * @param gpt_h - GPT header representation
+ * @param str_guid - disk guid string representation
+ * @param parts_count - number of partitions
+ *
+ * @return - error on str_guid conversion error
+ */
+int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
+		char *str_guid, int parts_count);
+
+/**
+ * gpt_restore(): Restore GPT partition table
+ *
+ * @param dev_desc - block device descriptor
+ * @param str_disk_guid - disk GUID
+ * @param partitions - list of partitions
+ * @param parts - number of partitions
+ *
+ * @return zero on success
+ */
+int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid,
+		disk_partition_t *partitions, const int parts_count);
 #endif
 
 #endif /* _PART_H */
diff --git a/include/part_efi.h b/include/part_efi.h
new file mode 100644
index 0000000..6de0a32
--- /dev/null
+++ b/include/part_efi.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2008 RuggedCom, Inc.
+ * Richard Retanubun <RichardRetanubun@RuggedCom.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * See also linux/fs/partitions/efi.h
+ *
+ * EFI GUID Partition Table
+ * Per Intel EFI Specification v1.02
+ * http://developer.intel.com/technology/efi/efi.htm
+*/
+
+#include <linux/compiler.h>
+
+#ifndef _DISK_PART_EFI_H
+#define _DISK_PART_EFI_H
+
+#define MSDOS_MBR_SIGNATURE 0xAA55
+#define EFI_PMBR_OSTYPE_EFI 0xEF
+#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
+
+#define GPT_BLOCK_SIZE 512
+#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
+#define GPT_HEADER_REVISION_V1 0x00010000
+#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
+#define GPT_ENTRY_NAME "gpt"
+#define GPT_ENTRY_NUMBERS		128
+#define GPT_ENTRY_SIZE			128
+
+#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
+	((efi_guid_t) \
+	{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+		(b) & 0xff, ((b) >> 8) & 0xff, \
+		(c) & 0xff, ((c) >> 8) & 0xff, \
+		(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+#define PARTITION_SYSTEM_GUID \
+	EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
+		0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
+#define LEGACY_MBR_PARTITION_GUID \
+	EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
+		0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
+#define PARTITION_MSFT_RESERVED_GUID \
+	EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
+		0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
+#define PARTITION_BASIC_DATA_GUID \
+	EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
+		0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
+#define PARTITION_LINUX_RAID_GUID \
+	EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
+		0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
+#define PARTITION_LINUX_SWAP_GUID \
+	EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
+		0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
+#define PARTITION_LINUX_LVM_GUID \
+	EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
+		0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
+
+/* linux/include/efi.h */
+typedef u16 efi_char16_t;
+
+typedef struct {
+	u8 b[16];
+} efi_guid_t;
+
+/* based on linux/include/genhd.h */
+struct partition {
+	u8 boot_ind;		/* 0x80 - active */
+	u8 head;		/* starting head */
+	u8 sector;		/* starting sector */
+	u8 cyl;			/* starting cylinder */
+	u8 sys_ind;		/* What partition type */
+	u8 end_head;		/* end head */
+	u8 end_sector;		/* end sector */
+	u8 end_cyl;		/* end cylinder */
+	__le32 start_sect;	/* starting sector counting from 0 */
+	__le32 nr_sects;	/* nr of sectors in partition */
+} __packed;
+
+/* based on linux/fs/partitions/efi.h */
+typedef struct _gpt_header {
+	__le64 signature;
+	__le32 revision;
+	__le32 header_size;
+	__le32 header_crc32;
+	__le32 reserved1;
+	__le64 my_lba;
+	__le64 alternate_lba;
+	__le64 first_usable_lba;
+	__le64 last_usable_lba;
+	efi_guid_t disk_guid;
+	__le64 partition_entry_lba;
+	__le32 num_partition_entries;
+	__le32 sizeof_partition_entry;
+	__le32 partition_entry_array_crc32;
+	u8 reserved2[GPT_BLOCK_SIZE - 92];
+} __packed gpt_header;
+
+typedef union _gpt_entry_attributes {
+	struct {
+		u64 required_to_function:1;
+		u64 no_block_io_protocol:1;
+		u64 legacy_bios_bootable:1;
+		u64 reserved:45;
+		u64 type_guid_specific:16;
+	} fields;
+	unsigned long long raw;
+} __packed gpt_entry_attributes;
+
+#define PARTNAME_SZ	(72 / sizeof(efi_char16_t))
+typedef struct _gpt_entry {
+	efi_guid_t partition_type_guid;
+	efi_guid_t unique_partition_guid;
+	__le64 starting_lba;
+	__le64 ending_lba;
+	gpt_entry_attributes attributes;
+	efi_char16_t partition_name[PARTNAME_SZ];
+} __packed gpt_entry;
+
+typedef struct _legacy_mbr {
+	u8 boot_code[440];
+	__le32 unique_mbr_signature;
+	__le16 unknown;
+	struct partition partition_record[4];
+	__le16 signature;
+} __packed legacy_mbr;
+
+#endif	/* _DISK_PART_EFI_H */
diff --git a/include/search.h b/include/search.h
index 93e1cbc..13d3be6 100644
--- a/include/search.h
+++ b/include/search.h
@@ -32,6 +32,12 @@
 
 #define __set_errno(val) do { errno = val; } while (0)
 
+enum env_op {
+	env_op_create,
+	env_op_delete,
+	env_op_overwrite,
+};
+
 /* Action which shall be performed in the call the hsearch.  */
 typedef enum {
 	FIND,
@@ -41,6 +47,9 @@ typedef enum {
 typedef struct entry {
 	const char *key;
 	char *data;
+	int (*callback)(const char *name, const char *value, enum env_op op,
+		int flags);
+	int flags;
 } ENTRY;
 
 /* Opaque type for internal use.  */
@@ -59,21 +68,20 @@ struct hsearch_data {
 	unsigned int filled;
 /*
  * Callback function which will check whether the given change for variable
- * "name" from "oldval" to "newval" may be applied or not, and possibly apply
- * such change.
+ * "item" to "newval" may be applied or not, and possibly apply such change.
  * When (flag & H_FORCE) is set, it shall not print out any error message and
  * shall force overwriting of write-once variables.
 .* Must return 0 for approval, 1 for denial.
  */
-	int (*apply)(const char *name, const char *oldval,
-			const char *newval, int flag);
+	int (*change_ok)(const ENTRY *__item, const char *newval, enum env_op,
+		int flag);
 };
 
 /* Create a new hashing table which will at most contain NEL elements.  */
 extern int hcreate_r(size_t __nel, struct hsearch_data *__htab);
 
 /* Destroy current internal hashing table.  */
-extern void hdestroy_r(struct hsearch_data *__htab, int do_apply);
+extern void hdestroy_r(struct hsearch_data *__htab);
 
 /*
  * Search for entry matching ITEM.key in internal hash table.  If
@@ -82,7 +90,7 @@ extern void hdestroy_r(struct hsearch_data *__htab, int do_apply);
  * ITEM.data.
  * */
 extern int hsearch_r(ENTRY __item, ACTION __action, ENTRY ** __retval,
-		     struct hsearch_data *__htab);
+		     struct hsearch_data *__htab, int __flag);
 
 /*
  * Search for an entry matching `MATCH'.  Otherwise, Same semantics
@@ -99,10 +107,10 @@ extern int hstrstr_r(const char *__match, int __last_idx, ENTRY ** __retval,
 
 /* Search and delete entry matching ITEM.key in internal hash table. */
 extern int hdelete_r(const char *__key, struct hsearch_data *__htab,
-			int do_apply);
+		     int __flag);
 
 extern ssize_t hexport_r(struct hsearch_data *__htab,
-		     const char __sep, char **__resp, size_t __size,
+		     const char __sep, int __flag, char **__resp, size_t __size,
 		     int argc, char * const argv[]);
 
 /*
@@ -113,10 +121,15 @@ extern ssize_t hexport_r(struct hsearch_data *__htab,
  */
 extern int himport_r(struct hsearch_data *__htab,
 		     const char *__env, size_t __size, const char __sep,
-		     int __flag, int nvars, char * const vars[], int do_apply);
+		     int __flag, int nvars, char * const vars[]);
+
+/* Walk the whole table calling the callback on each element */
+extern int hwalk_r(struct hsearch_data *__htab, int (*callback)(ENTRY *));
 
-/* Flags for himport_r() */
-#define	H_NOCLEAR	(1 << 0) /* do not clear hash table before importing */
-#define	H_FORCE		(1 << 1) /* overwrite read-only/write-once variables */
+/* Flags for himport_r(), hexport_r(), hdelete_r(), and hsearch_r() */
+#define H_NOCLEAR	(1 << 0) /* do not clear hash table before importing */
+#define H_FORCE		(1 << 1) /* overwrite read-only/write-once variables */
+#define H_INTERACTIVE	(1 << 2) /* indicate that an import is user directed */
+#define H_HIDE_DOT	(1 << 3) /* don't print env vars that begin with '.' */
 
 #endif /* search.h */
diff --git a/include/sha1.h b/include/sha1.h
index 734d1fb..da09dab 100644
--- a/include/sha1.h
+++ b/include/sha1.h
@@ -59,7 +59,8 @@ void sha1_starts( sha1_context *ctx );
  * \param input    buffer holding the  data
  * \param ilen	   length of the input data
  */
-void sha1_update( sha1_context *ctx, unsigned char *input, int ilen );
+void sha1_update(sha1_context *ctx, const unsigned char *input,
+		 unsigned int ilen);
 
 /**
  * \brief	   SHA-1 final digest
@@ -76,8 +77,8 @@ void sha1_finish( sha1_context *ctx, unsigned char output[20] );
  * \param ilen	   length of the input data
  * \param output   SHA-1 checksum result
  */
-void sha1_csum( unsigned char *input, int ilen,
-		unsigned char output[20] );
+void sha1_csum(const unsigned char *input, unsigned int ilen,
+		unsigned char *output);
 
 /**
  * \brief	   Output = SHA-1( input buffer ), with watchdog triggering
@@ -87,17 +88,8 @@ void sha1_csum( unsigned char *input, int ilen,
  * \param output   SHA-1 checksum result
  * \param chunk_sz watchdog triggering period (in bytes of input processed)
  */
-void sha1_csum_wd (unsigned char *input, int ilen,
-		unsigned char output[20], unsigned int chunk_sz);
-
-/**
- * \brief	   Output = SHA-1( file contents )
- *
- * \param path	   input file name
- * \param output   SHA-1 checksum result
- * \return	   0 if successful, or 1 if fopen failed
- */
-int sha1_file( char *path, unsigned char output[20] );
+void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz);
 
 /**
  * \brief	   Output = HMAC-SHA-1( input buffer, hmac key )
@@ -108,9 +100,9 @@ int sha1_file( char *path, unsigned char output[20] );
  * \param ilen	   length of the input data
  * \param output   HMAC-SHA-1 result
  */
-void sha1_hmac( unsigned char *key, int keylen,
-		unsigned char *input, int ilen,
-		unsigned char output[20] );
+void sha1_hmac(const unsigned char *key, int keylen,
+		const unsigned char *input, unsigned int ilen,
+		unsigned char *output);
 
 /**
  * \brief	   Checkup routine
diff --git a/include/sha256.h b/include/sha256.h
index e38ea89..beadab3 100644
--- a/include/sha256.h
+++ b/include/sha256.h
@@ -3,6 +3,9 @@
 
 #define SHA256_SUM_LEN	32
 
+/* Reset watchdog each time we process this many bytes */
+#define CHUNKSZ_SHA256	(64 * 1024)
+
 typedef struct {
 	uint32_t total[2];
 	uint32_t state[8];
@@ -10,7 +13,10 @@ typedef struct {
 } sha256_context;
 
 void sha256_starts(sha256_context * ctx);
-void sha256_update(sha256_context * ctx, uint8_t * input, uint32_t length);
+void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
 void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
 
+void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz);
+
 #endif /* _SHA256_H */