Add qemu 2.4.0
[kvmfornfv.git] / qemu / roms / u-boot / common / image.c
diff --git a/qemu/roms/u-boot/common/image.c b/qemu/roms/u-boot/common/image.c
new file mode 100644 (file)
index 0000000..fcc5a9c
--- /dev/null
@@ -0,0 +1,1176 @@
+/*
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef USE_HOSTCC
+#include <common.h>
+#include <watchdog.h>
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+#include <status_led.h>
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+#endif
+
+#ifdef CONFIG_LOGBUFFER
+#include <logbuff.h>
+#endif
+
+#include <rtc.h>
+
+#include <environment.h>
+#include <image.h>
+
+#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+
+#include <u-boot/md5.h>
+#include <sha1.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_CMD_BDI
+extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
+                                               int verify);
+#else
+#include "mkimage.h"
+#include <u-boot/md5.h>
+#include <time.h>
+#include <image.h>
+#endif /* !USE_HOSTCC*/
+
+#include <u-boot/crc.h>
+
+#ifndef CONFIG_SYS_BARGSIZE
+#define CONFIG_SYS_BARGSIZE 512
+#endif
+
+static const table_entry_t uimage_arch[] = {
+       {       IH_ARCH_INVALID,        NULL,           "Invalid ARCH", },
+       {       IH_ARCH_ALPHA,          "alpha",        "Alpha",        },
+       {       IH_ARCH_ARM,            "arm",          "ARM",          },
+       {       IH_ARCH_I386,           "x86",          "Intel x86",    },
+       {       IH_ARCH_IA64,           "ia64",         "IA64",         },
+       {       IH_ARCH_M68K,           "m68k",         "M68K",         },
+       {       IH_ARCH_MICROBLAZE,     "microblaze",   "MicroBlaze",   },
+       {       IH_ARCH_MIPS,           "mips",         "MIPS",         },
+       {       IH_ARCH_MIPS64,         "mips64",       "MIPS 64 Bit",  },
+       {       IH_ARCH_NIOS2,          "nios2",        "NIOS II",      },
+       {       IH_ARCH_PPC,            "powerpc",      "PowerPC",      },
+       {       IH_ARCH_PPC,            "ppc",          "PowerPC",      },
+       {       IH_ARCH_S390,           "s390",         "IBM S390",     },
+       {       IH_ARCH_SH,             "sh",           "SuperH",       },
+       {       IH_ARCH_SPARC,          "sparc",        "SPARC",        },
+       {       IH_ARCH_SPARC64,        "sparc64",      "SPARC 64 Bit", },
+       {       IH_ARCH_BLACKFIN,       "blackfin",     "Blackfin",     },
+       {       IH_ARCH_AVR32,          "avr32",        "AVR32",        },
+       {       IH_ARCH_NDS32,          "nds32",        "NDS32",        },
+       {       IH_ARCH_OPENRISC,       "or1k",         "OpenRISC 1000",},
+       {       IH_ARCH_SANDBOX,        "sandbox",      "Sandbox",      },
+       {       IH_ARCH_ARM64,          "arm64",        "AArch64",      },
+       {       IH_ARCH_ARC,            "arc",          "ARC",          },
+       {       -1,                     "",             "",             },
+};
+
+static const table_entry_t uimage_os[] = {
+       {       IH_OS_INVALID,  NULL,           "Invalid OS",           },
+       {       IH_OS_LINUX,    "linux",        "Linux",                },
+#if defined(CONFIG_LYNXKDI) || defined(USE_HOSTCC)
+       {       IH_OS_LYNXOS,   "lynxos",       "LynxOS",               },
+#endif
+       {       IH_OS_NETBSD,   "netbsd",       "NetBSD",               },
+       {       IH_OS_OSE,      "ose",          "Enea OSE",             },
+       {       IH_OS_PLAN9,    "plan9",        "Plan 9",               },
+       {       IH_OS_RTEMS,    "rtems",        "RTEMS",                },
+       {       IH_OS_U_BOOT,   "u-boot",       "U-Boot",               },
+       {       IH_OS_VXWORKS,  "vxworks",      "VxWorks",              },
+#if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
+       {       IH_OS_QNX,      "qnx",          "QNX",                  },
+#endif
+#if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
+       {       IH_OS_INTEGRITY,"integrity",    "INTEGRITY",            },
+#endif
+#ifdef USE_HOSTCC
+       {       IH_OS_4_4BSD,   "4_4bsd",       "4_4BSD",               },
+       {       IH_OS_DELL,     "dell",         "Dell",                 },
+       {       IH_OS_ESIX,     "esix",         "Esix",                 },
+       {       IH_OS_FREEBSD,  "freebsd",      "FreeBSD",              },
+       {       IH_OS_IRIX,     "irix",         "Irix",                 },
+       {       IH_OS_NCR,      "ncr",          "NCR",                  },
+       {       IH_OS_OPENBSD,  "openbsd",      "OpenBSD",              },
+       {       IH_OS_PSOS,     "psos",         "pSOS",                 },
+       {       IH_OS_SCO,      "sco",          "SCO",                  },
+       {       IH_OS_SOLARIS,  "solaris",      "Solaris",              },
+       {       IH_OS_SVR4,     "svr4",         "SVR4",                 },
+#endif
+       {       -1,             "",             "",                     },
+};
+
+static const table_entry_t uimage_type[] = {
+       {       IH_TYPE_AISIMAGE,   "aisimage",   "Davinci AIS image",},
+       {       IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",   },
+       {       IH_TYPE_FIRMWARE,   "firmware",   "Firmware",           },
+       {       IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",   },
+       {       IH_TYPE_GPIMAGE,    "gpimage",    "TI Keystone SPL Image",},
+       {       IH_TYPE_KERNEL,     "kernel",     "Kernel Image",       },
+       {       IH_TYPE_KERNEL_NOLOAD, "kernel_noload",  "Kernel Image (no loading done)", },
+       {       IH_TYPE_KWBIMAGE,   "kwbimage",   "Kirkwood Boot Image",},
+       {       IH_TYPE_IMXIMAGE,   "imximage",   "Freescale i.MX Boot Image",},
+       {       IH_TYPE_INVALID,    NULL,         "Invalid Image",      },
+       {       IH_TYPE_MULTI,      "multi",      "Multi-File Image",   },
+       {       IH_TYPE_OMAPIMAGE,  "omapimage",  "TI OMAP SPL With GP CH",},
+       {       IH_TYPE_PBLIMAGE,   "pblimage",   "Freescale PBL Boot Image",},
+       {       IH_TYPE_RAMDISK,    "ramdisk",    "RAMDisk Image",      },
+       {       IH_TYPE_SCRIPT,     "script",     "Script",             },
+       {       IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
+       {       IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
+       {       IH_TYPE_MXSIMAGE,   "mxsimage",   "Freescale MXS Boot Image",},
+       {       -1,                 "",           "",                   },
+};
+
+static const table_entry_t uimage_comp[] = {
+       {       IH_COMP_NONE,   "none",         "uncompressed",         },
+       {       IH_COMP_BZIP2,  "bzip2",        "bzip2 compressed",     },
+       {       IH_COMP_GZIP,   "gzip",         "gzip compressed",      },
+       {       IH_COMP_LZMA,   "lzma",         "lzma compressed",      },
+       {       IH_COMP_LZO,    "lzo",          "lzo compressed",       },
+       {       -1,             "",             "",                     },
+};
+
+/*****************************************************************************/
+/* Legacy format routines */
+/*****************************************************************************/
+int image_check_hcrc(const image_header_t *hdr)
+{
+       ulong hcrc;
+       ulong len = image_get_header_size();
+       image_header_t header;
+
+       /* Copy header so we can blank CRC field for re-calculation */
+       memmove(&header, (char *)hdr, image_get_header_size());
+       image_set_hcrc(&header, 0);
+
+       hcrc = crc32(0, (unsigned char *)&header, len);
+
+       return (hcrc == image_get_hcrc(hdr));
+}
+
+int image_check_dcrc(const image_header_t *hdr)
+{
+       ulong data = image_get_data(hdr);
+       ulong len = image_get_data_size(hdr);
+       ulong dcrc = crc32_wd(0, (unsigned char *)data, len, CHUNKSZ_CRC32);
+
+       return (dcrc == image_get_dcrc(hdr));
+}
+
+/**
+ * image_multi_count - get component (sub-image) count
+ * @hdr: pointer to the header of the multi component image
+ *
+ * image_multi_count() returns number of components in a multi
+ * component image.
+ *
+ * Note: no checking of the image type is done, caller must pass
+ * a valid multi component image.
+ *
+ * returns:
+ *     number of components
+ */
+ulong image_multi_count(const image_header_t *hdr)
+{
+       ulong i, count = 0;
+       uint32_t *size;
+
+       /* get start of the image payload, which in case of multi
+        * component images that points to a table of component sizes */
+       size = (uint32_t *)image_get_data(hdr);
+
+       /* count non empty slots */
+       for (i = 0; size[i]; ++i)
+               count++;
+
+       return count;
+}
+
+/**
+ * image_multi_getimg - get component data address and size
+ * @hdr: pointer to the header of the multi component image
+ * @idx: index of the requested component
+ * @data: pointer to a ulong variable, will hold component data address
+ * @len: pointer to a ulong variable, will hold component size
+ *
+ * image_multi_getimg() returns size and data address for the requested
+ * component in a multi component image.
+ *
+ * Note: no checking of the image type is done, caller must pass
+ * a valid multi component image.
+ *
+ * returns:
+ *     data address and size of the component, if idx is valid
+ *     0 in data and len, if idx is out of range
+ */
+void image_multi_getimg(const image_header_t *hdr, ulong idx,
+                       ulong *data, ulong *len)
+{
+       int i;
+       uint32_t *size;
+       ulong offset, count, img_data;
+
+       /* get number of component */
+       count = image_multi_count(hdr);
+
+       /* get start of the image payload, which in case of multi
+        * component images that points to a table of component sizes */
+       size = (uint32_t *)image_get_data(hdr);
+
+       /* get address of the proper component data start, which means
+        * skipping sizes table (add 1 for last, null entry) */
+       img_data = image_get_data(hdr) + (count + 1) * sizeof(uint32_t);
+
+       if (idx < count) {
+               *len = uimage_to_cpu(size[idx]);
+               offset = 0;
+
+               /* go over all indices preceding requested component idx */
+               for (i = 0; i < idx; i++) {
+                       /* add up i-th component size, rounding up to 4 bytes */
+                       offset += (uimage_to_cpu(size[i]) + 3) & ~3 ;
+               }
+
+               /* calculate idx-th component data address */
+               *data = img_data + offset;
+       } else {
+               *len = 0;
+               *data = 0;
+       }
+}
+
+static void image_print_type(const image_header_t *hdr)
+{
+       const char *os, *arch, *type, *comp;
+
+       os = genimg_get_os_name(image_get_os(hdr));
+       arch = genimg_get_arch_name(image_get_arch(hdr));
+       type = genimg_get_type_name(image_get_type(hdr));
+       comp = genimg_get_comp_name(image_get_comp(hdr));
+
+       printf("%s %s %s (%s)\n", arch, os, type, comp);
+}
+
+/**
+ * image_print_contents - prints out the contents of the legacy format image
+ * @ptr: pointer to the legacy format image header
+ * @p: pointer to prefix string
+ *
+ * image_print_contents() formats a multi line legacy image contents description.
+ * The routine prints out all header fields followed by the size/offset data
+ * for MULTI/SCRIPT images.
+ *
+ * returns:
+ *     no returned results
+ */
+void image_print_contents(const void *ptr)
+{
+       const image_header_t *hdr = (const image_header_t *)ptr;
+       const char *p;
+
+       p = IMAGE_INDENT_STRING;
+       printf("%sImage Name:   %.*s\n", p, IH_NMLEN, image_get_name(hdr));
+       if (IMAGE_ENABLE_TIMESTAMP) {
+               printf("%sCreated:      ", p);
+               genimg_print_time((time_t)image_get_time(hdr));
+       }
+       printf("%sImage Type:   ", p);
+       image_print_type(hdr);
+       printf("%sData Size:    ", p);
+       genimg_print_size(image_get_data_size(hdr));
+       printf("%sLoad Address: %08x\n", p, image_get_load(hdr));
+       printf("%sEntry Point:  %08x\n", p, image_get_ep(hdr));
+
+       if (image_check_type(hdr, IH_TYPE_MULTI) ||
+                       image_check_type(hdr, IH_TYPE_SCRIPT)) {
+               int i;
+               ulong data, len;
+               ulong count = image_multi_count(hdr);
+
+               printf("%sContents:\n", p);
+               for (i = 0; i < count; i++) {
+                       image_multi_getimg(hdr, i, &data, &len);
+
+                       printf("%s   Image %d: ", p, i);
+                       genimg_print_size(len);
+
+                       if (image_check_type(hdr, IH_TYPE_SCRIPT) && i > 0) {
+                               /*
+                                * the user may need to know offsets
+                                * if planning to do something with
+                                * multiple files
+                                */
+                               printf("%s    Offset = 0x%08lx\n", p, data);
+                       }
+               }
+       }
+}
+
+
+#ifndef USE_HOSTCC
+/**
+ * image_get_ramdisk - get and verify ramdisk image
+ * @rd_addr: ramdisk image start address
+ * @arch: expected ramdisk architecture
+ * @verify: checksum verification flag
+ *
+ * image_get_ramdisk() returns a pointer to the verified ramdisk image
+ * header. Routine receives image start address and expected architecture
+ * flag. Verification done covers data and header integrity and os/type/arch
+ * fields checking.
+ *
+ * If dataflash support is enabled routine checks for dataflash addresses
+ * and handles required dataflash reads.
+ *
+ * returns:
+ *     pointer to a ramdisk image header, if image was found and valid
+ *     otherwise, return NULL
+ */
+static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
+                                               int verify)
+{
+       const image_header_t *rd_hdr = (const image_header_t *)rd_addr;
+
+       if (!image_check_magic(rd_hdr)) {
+               puts("Bad Magic Number\n");
+               bootstage_error(BOOTSTAGE_ID_RD_MAGIC);
+               return NULL;
+       }
+
+       if (!image_check_hcrc(rd_hdr)) {
+               puts("Bad Header Checksum\n");
+               bootstage_error(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
+               return NULL;
+       }
+
+       bootstage_mark(BOOTSTAGE_ID_RD_MAGIC);
+       image_print_contents(rd_hdr);
+
+       if (verify) {
+               puts("   Verifying Checksum ... ");
+               if (!image_check_dcrc(rd_hdr)) {
+                       puts("Bad Data CRC\n");
+                       bootstage_error(BOOTSTAGE_ID_RD_CHECKSUM);
+                       return NULL;
+               }
+               puts("OK\n");
+       }
+
+       bootstage_mark(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
+
+       if (!image_check_os(rd_hdr, IH_OS_LINUX) ||
+           !image_check_arch(rd_hdr, arch) ||
+           !image_check_type(rd_hdr, IH_TYPE_RAMDISK)) {
+               printf("No Linux %s Ramdisk Image\n",
+                               genimg_get_arch_name(arch));
+               bootstage_error(BOOTSTAGE_ID_RAMDISK);
+               return NULL;
+       }
+
+       return rd_hdr;
+}
+#endif /* !USE_HOSTCC */
+
+/*****************************************************************************/
+/* Shared dual-format routines */
+/*****************************************************************************/
+#ifndef USE_HOSTCC
+ulong load_addr = CONFIG_SYS_LOAD_ADDR;        /* Default Load Address */
+ulong save_addr;                       /* Default Save Address */
+ulong save_size;                       /* Default Save Size (in bytes) */
+
+static int on_loadaddr(const char *name, const char *value, enum env_op op,
+       int flags)
+{
+       switch (op) {
+       case env_op_create:
+       case env_op_overwrite:
+               load_addr = simple_strtoul(value, NULL, 16);
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+U_BOOT_ENV_CALLBACK(loadaddr, on_loadaddr);
+
+ulong getenv_bootm_low(void)
+{
+       char *s = getenv("bootm_low");
+       if (s) {
+               ulong tmp = simple_strtoul(s, NULL, 16);
+               return tmp;
+       }
+
+#if defined(CONFIG_SYS_SDRAM_BASE)
+       return CONFIG_SYS_SDRAM_BASE;
+#elif defined(CONFIG_ARM)
+       return gd->bd->bi_dram[0].start;
+#else
+       return 0;
+#endif
+}
+
+phys_size_t getenv_bootm_size(void)
+{
+       phys_size_t tmp;
+       char *s = getenv("bootm_size");
+       if (s) {
+               tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
+               return tmp;
+       }
+       s = getenv("bootm_low");
+       if (s)
+               tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
+       else
+               tmp = 0;
+
+
+#if defined(CONFIG_ARM)
+       return gd->bd->bi_dram[0].size - tmp;
+#else
+       return gd->bd->bi_memsize - tmp;
+#endif
+}
+
+phys_size_t getenv_bootm_mapsize(void)
+{
+       phys_size_t tmp;
+       char *s = getenv("bootm_mapsize");
+       if (s) {
+               tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
+               return tmp;
+       }
+
+#if defined(CONFIG_SYS_BOOTMAPSZ)
+       return CONFIG_SYS_BOOTMAPSZ;
+#else
+       return getenv_bootm_size();
+#endif
+}
+
+void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
+{
+       if (to == from)
+               return;
+
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+       while (len > 0) {
+               size_t tail = (len > chunksz) ? chunksz : len;
+               WATCHDOG_RESET();
+               memmove(to, from, tail);
+               to += tail;
+               from += tail;
+               len -= tail;
+       }
+#else  /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+       memmove(to, from, len);
+#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+}
+#endif /* !USE_HOSTCC */
+
+void genimg_print_size(uint32_t size)
+{
+#ifndef USE_HOSTCC
+       printf("%d Bytes = ", size);
+       print_size(size, "\n");
+#else
+       printf("%d Bytes = %.2f kB = %.2f MB\n",
+                       size, (double)size / 1.024e3,
+                       (double)size / 1.048576e6);
+#endif
+}
+
+#if IMAGE_ENABLE_TIMESTAMP
+void genimg_print_time(time_t timestamp)
+{
+#ifndef USE_HOSTCC
+       struct rtc_time tm;
+
+       to_tm(timestamp, &tm);
+       printf("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
+                       tm.tm_year, tm.tm_mon, tm.tm_mday,
+                       tm.tm_hour, tm.tm_min, tm.tm_sec);
+#else
+       printf("%s", ctime(&timestamp));
+#endif
+}
+#endif
+
+/**
+ * get_table_entry_name - translate entry id to long name
+ * @table: pointer to a translation table for entries of a specific type
+ * @msg: message to be returned when translation fails
+ * @id: entry id to be translated
+ *
+ * get_table_entry_name() will go over translation table trying to find
+ * entry that matches given id. If matching entry is found, its long
+ * name is returned to the caller.
+ *
+ * returns:
+ *     long entry name if translation succeeds
+ *     msg otherwise
+ */
+char *get_table_entry_name(const table_entry_t *table, char *msg, int id)
+{
+       for (; table->id >= 0; ++table) {
+               if (table->id == id)
+#if defined(USE_HOSTCC) || !defined(CONFIG_NEEDS_MANUAL_RELOC)
+                       return table->lname;
+#else
+                       return table->lname + gd->reloc_off;
+#endif
+       }
+       return (msg);
+}
+
+const char *genimg_get_os_name(uint8_t os)
+{
+       return (get_table_entry_name(uimage_os, "Unknown OS", os));
+}
+
+const char *genimg_get_arch_name(uint8_t arch)
+{
+       return (get_table_entry_name(uimage_arch, "Unknown Architecture",
+                                       arch));
+}
+
+const char *genimg_get_type_name(uint8_t type)
+{
+       return (get_table_entry_name(uimage_type, "Unknown Image", type));
+}
+
+const char *genimg_get_comp_name(uint8_t comp)
+{
+       return (get_table_entry_name(uimage_comp, "Unknown Compression",
+                                       comp));
+}
+
+/**
+ * get_table_entry_id - translate short entry name to id
+ * @table: pointer to a translation table for entries of a specific type
+ * @table_name: to be used in case of error
+ * @name: entry short name to be translated
+ *
+ * get_table_entry_id() will go over translation table trying to find
+ * entry that matches given short name. If matching entry is found,
+ * its id returned to the caller.
+ *
+ * returns:
+ *     entry id if translation succeeds
+ *     -1 otherwise
+ */
+int get_table_entry_id(const table_entry_t *table,
+               const char *table_name, const char *name)
+{
+       const table_entry_t *t;
+#ifdef USE_HOSTCC
+       int first = 1;
+
+       for (t = table; t->id >= 0; ++t) {
+               if (t->sname && strcasecmp(t->sname, name) == 0)
+                       return(t->id);
+       }
+
+       fprintf(stderr, "\nInvalid %s Type - valid names are", table_name);
+       for (t = table; t->id >= 0; ++t) {
+               if (t->sname == NULL)
+                       continue;
+               fprintf(stderr, "%c %s", (first) ? ':' : ',', t->sname);
+               first = 0;
+       }
+       fprintf(stderr, "\n");
+#else
+       for (t = table; t->id >= 0; ++t) {
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+               if (t->sname && strcmp(t->sname + gd->reloc_off, name) == 0)
+#else
+               if (t->sname && strcmp(t->sname, name) == 0)
+#endif
+                       return (t->id);
+       }
+       debug("Invalid %s Type: %s\n", table_name, name);
+#endif /* USE_HOSTCC */
+       return (-1);
+}
+
+int genimg_get_os_id(const char *name)
+{
+       return (get_table_entry_id(uimage_os, "OS", name));
+}
+
+int genimg_get_arch_id(const char *name)
+{
+       return (get_table_entry_id(uimage_arch, "CPU", name));
+}
+
+int genimg_get_type_id(const char *name)
+{
+       return (get_table_entry_id(uimage_type, "Image", name));
+}
+
+int genimg_get_comp_id(const char *name)
+{
+       return (get_table_entry_id(uimage_comp, "Compression", name));
+}
+
+#ifndef USE_HOSTCC
+/**
+ * genimg_get_format - get image format type
+ * @img_addr: image start address
+ *
+ * genimg_get_format() checks whether provided address points to a valid
+ * legacy or FIT image.
+ *
+ * New uImage format and FDT blob are based on a libfdt. FDT blob
+ * may be passed directly or embedded in a FIT image. In both situations
+ * genimg_get_format() must be able to dectect libfdt header.
+ *
+ * returns:
+ *     image format type or IMAGE_FORMAT_INVALID if no image is present
+ */
+int genimg_get_format(const void *img_addr)
+{
+       ulong format = IMAGE_FORMAT_INVALID;
+       const image_header_t *hdr;
+
+       hdr = (const image_header_t *)img_addr;
+       if (image_check_magic(hdr))
+               format = IMAGE_FORMAT_LEGACY;
+#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
+       else {
+               if (fdt_check_header(img_addr) == 0)
+                       format = IMAGE_FORMAT_FIT;
+       }
+#endif
+
+       return format;
+}
+
+/**
+ * genimg_get_image - get image from special storage (if necessary)
+ * @img_addr: image start address
+ *
+ * genimg_get_image() checks if provided image start adddress is located
+ * in a dataflash storage. If so, image is moved to a system RAM memory.
+ *
+ * returns:
+ *     image start address after possible relocation from special storage
+ */
+ulong genimg_get_image(ulong img_addr)
+{
+       ulong ram_addr = img_addr;
+
+#ifdef CONFIG_HAS_DATAFLASH
+       ulong h_size, d_size;
+
+       if (addr_dataflash(img_addr)) {
+               void *buf;
+
+               /* ger RAM address */
+               ram_addr = CONFIG_SYS_LOAD_ADDR;
+
+               /* get header size */
+               h_size = image_get_header_size();
+#if defined(CONFIG_FIT)
+               if (sizeof(struct fdt_header) > h_size)
+                       h_size = sizeof(struct fdt_header);
+#endif
+
+               /* read in header */
+               debug("   Reading image header from dataflash address "
+                       "%08lx to RAM address %08lx\n", img_addr, ram_addr);
+
+               buf = map_sysmem(ram_addr, 0);
+               read_dataflash(img_addr, h_size, buf);
+
+               /* get data size */
+               switch (genimg_get_format(buf)) {
+               case IMAGE_FORMAT_LEGACY:
+                       d_size = image_get_data_size(buf);
+                       debug("   Legacy format image found at 0x%08lx, "
+                                       "size 0x%08lx\n",
+                                       ram_addr, d_size);
+                       break;
+#if defined(CONFIG_FIT)
+               case IMAGE_FORMAT_FIT:
+                       d_size = fit_get_size(buf) - h_size;
+                       debug("   FIT/FDT format image found at 0x%08lx, "
+                                       "size 0x%08lx\n",
+                                       ram_addr, d_size);
+                       break;
+#endif
+               default:
+                       printf("   No valid image found at 0x%08lx\n",
+                               img_addr);
+                       return ram_addr;
+               }
+
+               /* read in image data */
+               debug("   Reading image remaining data from dataflash address "
+                       "%08lx to RAM address %08lx\n", img_addr + h_size,
+                       ram_addr + h_size);
+
+               read_dataflash(img_addr + h_size, d_size,
+                               (char *)(buf + h_size));
+
+       }
+#endif /* CONFIG_HAS_DATAFLASH */
+
+       return ram_addr;
+}
+
+/**
+ * fit_has_config - check if there is a valid FIT configuration
+ * @images: pointer to the bootm command headers structure
+ *
+ * fit_has_config() checks if there is a FIT configuration in use
+ * (if FTI support is present).
+ *
+ * returns:
+ *     0, no FIT support or no configuration found
+ *     1, configuration found
+ */
+int genimg_has_config(bootm_headers_t *images)
+{
+#if defined(CONFIG_FIT)
+       if (images->fit_uname_cfg)
+               return 1;
+#endif
+       return 0;
+}
+
+/**
+ * boot_get_ramdisk - main ramdisk handling routine
+ * @argc: command argument count
+ * @argv: command argument list
+ * @images: pointer to the bootm images structure
+ * @arch: expected ramdisk architecture
+ * @rd_start: pointer to a ulong variable, will hold ramdisk start address
+ * @rd_end: pointer to a ulong variable, will hold ramdisk end
+ *
+ * boot_get_ramdisk() is responsible for finding a valid ramdisk image.
+ * Curently supported are the following ramdisk sources:
+ *      - multicomponent kernel/ramdisk image,
+ *      - commandline provided address of decicated ramdisk image.
+ *
+ * returns:
+ *     0, if ramdisk image was found and valid, or skiped
+ *     rd_start and rd_end are set to ramdisk start/end addresses if
+ *     ramdisk image is found and valid
+ *
+ *     1, if ramdisk image is found but corrupted, or invalid
+ *     rd_start and rd_end are set to 0 if no ramdisk exists
+ */
+int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
+               uint8_t arch, ulong *rd_start, ulong *rd_end)
+{
+       ulong rd_addr, rd_load;
+       ulong rd_data, rd_len;
+       const image_header_t *rd_hdr;
+       void *buf;
+#ifdef CONFIG_SUPPORT_RAW_INITRD
+       char *end;
+#endif
+#if defined(CONFIG_FIT)
+       const char      *fit_uname_config = images->fit_uname_cfg;
+       const char      *fit_uname_ramdisk = NULL;
+       ulong           default_addr;
+       int             rd_noffset;
+#endif
+       const char *select = NULL;
+
+       *rd_start = 0;
+       *rd_end = 0;
+
+       if (argc >= 2)
+               select = argv[1];
+       /*
+        * Look for a '-' which indicates to ignore the
+        * ramdisk argument
+        */
+       if (select && strcmp(select, "-") ==  0) {
+               debug("## Skipping init Ramdisk\n");
+               rd_len = rd_data = 0;
+       } else if (select || genimg_has_config(images)) {
+#if defined(CONFIG_FIT)
+               if (select) {
+                       /*
+                        * If the init ramdisk comes from the FIT image and
+                        * the FIT image address is omitted in the command
+                        * line argument, try to use os FIT image address or
+                        * default load address.
+                        */
+                       if (images->fit_uname_os)
+                               default_addr = (ulong)images->fit_hdr_os;
+                       else
+                               default_addr = load_addr;
+
+                       if (fit_parse_conf(select, default_addr,
+                                          &rd_addr, &fit_uname_config)) {
+                               debug("*  ramdisk: config '%s' from image at "
+                                               "0x%08lx\n",
+                                               fit_uname_config, rd_addr);
+                       } else if (fit_parse_subimage(select, default_addr,
+                                               &rd_addr, &fit_uname_ramdisk)) {
+                               debug("*  ramdisk: subimage '%s' from image at "
+                                               "0x%08lx\n",
+                                               fit_uname_ramdisk, rd_addr);
+                       } else
+#endif
+                       {
+                               rd_addr = simple_strtoul(select, NULL, 16);
+                               debug("*  ramdisk: cmdline image address = "
+                                               "0x%08lx\n",
+                                               rd_addr);
+                       }
+#if defined(CONFIG_FIT)
+               } else {
+                       /* use FIT configuration provided in first bootm
+                        * command argument. If the property is not defined,
+                        * quit silently.
+                        */
+                       rd_addr = map_to_sysmem(images->fit_hdr_os);
+                       rd_noffset = fit_get_node_from_config(images,
+                                       FIT_RAMDISK_PROP, rd_addr);
+                       if (rd_noffset == -ENOLINK)
+                               return 0;
+                       else if (rd_noffset < 0)
+                               return 1;
+               }
+#endif
+
+               /* copy from dataflash if needed */
+               rd_addr = genimg_get_image(rd_addr);
+
+               /*
+                * Check if there is an initrd image at the
+                * address provided in the second bootm argument
+                * check image type, for FIT images get FIT node.
+                */
+               buf = map_sysmem(rd_addr, 0);
+               switch (genimg_get_format(buf)) {
+               case IMAGE_FORMAT_LEGACY:
+                       printf("## Loading init Ramdisk from Legacy "
+                                       "Image at %08lx ...\n", rd_addr);
+
+                       bootstage_mark(BOOTSTAGE_ID_CHECK_RAMDISK);
+                       rd_hdr = image_get_ramdisk(rd_addr, arch,
+                                                       images->verify);
+
+                       if (rd_hdr == NULL)
+                               return 1;
+
+                       rd_data = image_get_data(rd_hdr);
+                       rd_len = image_get_data_size(rd_hdr);
+                       rd_load = image_get_load(rd_hdr);
+                       break;
+#if defined(CONFIG_FIT)
+               case IMAGE_FORMAT_FIT:
+                       rd_noffset = fit_image_load(images, FIT_RAMDISK_PROP,
+                                       rd_addr, &fit_uname_ramdisk,
+                                       &fit_uname_config, arch,
+                                       IH_TYPE_RAMDISK,
+                                       BOOTSTAGE_ID_FIT_RD_START,
+                                       FIT_LOAD_IGNORED, &rd_data, &rd_len);
+                       if (rd_noffset < 0)
+                               return 1;
+
+                       images->fit_hdr_rd = map_sysmem(rd_addr, 0);
+                       images->fit_uname_rd = fit_uname_ramdisk;
+                       images->fit_noffset_rd = rd_noffset;
+                       break;
+#endif
+               default:
+#ifdef CONFIG_SUPPORT_RAW_INITRD
+                       end = NULL;
+                       if (select)
+                               end = strchr(select, ':');
+                       if (end) {
+                               rd_len = simple_strtoul(++end, NULL, 16);
+                               rd_data = rd_addr;
+                       } else
+#endif
+                       {
+                               puts("Wrong Ramdisk Image Format\n");
+                               rd_data = rd_len = rd_load = 0;
+                               return 1;
+                       }
+               }
+       } else if (images->legacy_hdr_valid &&
+                       image_check_type(&images->legacy_hdr_os_copy,
+                                               IH_TYPE_MULTI)) {
+
+               /*
+                * Now check if we have a legacy mult-component image,
+                * get second entry data start address and len.
+                */
+               bootstage_mark(BOOTSTAGE_ID_RAMDISK);
+               printf("## Loading init Ramdisk from multi component "
+                               "Legacy Image at %08lx ...\n",
+                               (ulong)images->legacy_hdr_os);
+
+               image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
+       } else {
+               /*
+                * no initrd image
+                */
+               bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK);
+               rd_len = rd_data = 0;
+       }
+
+       if (!rd_data) {
+               debug("## No init Ramdisk\n");
+       } else {
+               *rd_start = rd_data;
+               *rd_end = rd_data + rd_len;
+       }
+       debug("   ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
+                       *rd_start, *rd_end);
+
+       return 0;
+}
+
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+/**
+ * boot_ramdisk_high - relocate init ramdisk
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @rd_data: ramdisk data start address
+ * @rd_len: ramdisk data length
+ * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
+ *      start address (after possible relocation)
+ * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
+ *      end address (after possible relocation)
+ *
+ * boot_ramdisk_high() takes a relocation hint from "initrd_high" environment
+ * variable and if requested ramdisk data is moved to a specified location.
+ *
+ * Initrd_start and initrd_end are set to final (after relocation) ramdisk
+ * start/end addresses if ramdisk image start and len were provided,
+ * otherwise set initrd_start and initrd_end set to zeros.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
+                 ulong *initrd_start, ulong *initrd_end)
+{
+       char    *s;
+       ulong   initrd_high;
+       int     initrd_copy_to_ram = 1;
+
+       if ((s = getenv("initrd_high")) != NULL) {
+               /* a value of "no" or a similar string will act like 0,
+                * turning the "load high" feature off. This is intentional.
+                */
+               initrd_high = simple_strtoul(s, NULL, 16);
+               if (initrd_high == ~0)
+                       initrd_copy_to_ram = 0;
+       } else {
+               /* not set, no restrictions to load high */
+               initrd_high = ~0;
+       }
+
+
+#ifdef CONFIG_LOGBUFFER
+       /* Prevent initrd from overwriting logbuffer */
+       lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
+#endif
+
+       debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
+                       initrd_high, initrd_copy_to_ram);
+
+       if (rd_data) {
+               if (!initrd_copy_to_ram) {      /* zero-copy ramdisk support */
+                       debug("   in-place initrd\n");
+                       *initrd_start = rd_data;
+                       *initrd_end = rd_data + rd_len;
+                       lmb_reserve(lmb, rd_data, rd_len);
+               } else {
+                       if (initrd_high)
+                               *initrd_start = (ulong)lmb_alloc_base(lmb,
+                                               rd_len, 0x1000, initrd_high);
+                       else
+                               *initrd_start = (ulong)lmb_alloc(lmb, rd_len,
+                                                                0x1000);
+
+                       if (*initrd_start == 0) {
+                               puts("ramdisk - allocation error\n");
+                               goto error;
+                       }
+                       bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK);
+
+                       *initrd_end = *initrd_start + rd_len;
+                       printf("   Loading Ramdisk to %08lx, end %08lx ... ",
+                                       *initrd_start, *initrd_end);
+
+                       memmove_wd((void *)*initrd_start,
+                                       (void *)rd_data, rd_len, CHUNKSZ);
+
+#ifdef CONFIG_MP
+                       /*
+                        * Ensure the image is flushed to memory to handle
+                        * AMP boot scenarios in which we might not be
+                        * HW cache coherent
+                        */
+                       flush_cache((unsigned long)*initrd_start, rd_len);
+#endif
+                       puts("OK\n");
+               }
+       } else {
+               *initrd_start = 0;
+               *initrd_end = 0;
+       }
+       debug("   ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
+                       *initrd_start, *initrd_end);
+
+       return 0;
+
+error:
+       return -1;
+}
+#endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */
+
+#ifdef CONFIG_SYS_BOOT_GET_CMDLINE
+/**
+ * boot_get_cmdline - allocate and initialize kernel cmdline
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @cmd_start: pointer to a ulong variable, will hold cmdline start
+ * @cmd_end: pointer to a ulong variable, will hold cmdline end
+ *
+ * boot_get_cmdline() allocates space for kernel command line below
+ * BOOTMAPSZ + getenv_bootm_low() address. If "bootargs" U-boot environemnt
+ * variable is present its contents is copied to allocated kernel
+ * command line.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
+{
+       char *cmdline;
+       char *s;
+
+       cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
+                               getenv_bootm_mapsize() + getenv_bootm_low());
+
+       if (cmdline == NULL)
+               return -1;
+
+       if ((s = getenv("bootargs")) == NULL)
+               s = "";
+
+       strcpy(cmdline, s);
+
+       *cmd_start = (ulong) & cmdline[0];
+       *cmd_end = *cmd_start + strlen(cmdline);
+
+       debug("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
+
+       return 0;
+}
+#endif /* CONFIG_SYS_BOOT_GET_CMDLINE */
+
+#ifdef CONFIG_SYS_BOOT_GET_KBD
+/**
+ * boot_get_kbd - allocate and initialize kernel copy of board info
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @kbd: double pointer to board info data
+ *
+ * boot_get_kbd() allocates space for kernel copy of board info data below
+ * BOOTMAPSZ + getenv_bootm_low() address and kernel board info is initialized
+ * with the current u-boot board info data.
+ *
+ * returns:
+ *      0 - success
+ *     -1 - failure
+ */
+int boot_get_kbd(struct lmb *lmb, bd_t **kbd)
+{
+       *kbd = (bd_t *)(ulong)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
+                               getenv_bootm_mapsize() + getenv_bootm_low());
+       if (*kbd == NULL)
+               return -1;
+
+       **kbd = *(gd->bd);
+
+       debug("## kernel board info at 0x%08lx\n", (ulong)*kbd);
+
+#if defined(DEBUG) && defined(CONFIG_CMD_BDI)
+       do_bdinfo(NULL, 0, 0, NULL);
+#endif
+
+       return 0;
+}
+#endif /* CONFIG_SYS_BOOT_GET_KBD */
+
+#ifdef CONFIG_LMB
+int image_setup_linux(bootm_headers_t *images)
+{
+       ulong of_size = images->ft_len;
+       char **of_flat_tree = &images->ft_addr;
+       ulong *initrd_start = &images->initrd_start;
+       ulong *initrd_end = &images->initrd_end;
+       struct lmb *lmb = &images->lmb;
+       ulong rd_len;
+       int ret;
+
+       if (IMAGE_ENABLE_OF_LIBFDT)
+               boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
+
+       if (IMAGE_BOOT_GET_CMDLINE) {
+               ret = boot_get_cmdline(lmb, &images->cmdline_start,
+                               &images->cmdline_end);
+               if (ret) {
+                       puts("ERROR with allocation of cmdline\n");
+                       return ret;
+               }
+       }
+       if (IMAGE_ENABLE_RAMDISK_HIGH) {
+               rd_len = images->rd_end - images->rd_start;
+               ret = boot_ramdisk_high(lmb, images->rd_start, rd_len,
+                               initrd_start, initrd_end);
+               if (ret)
+                       return ret;
+       }
+
+       if (IMAGE_ENABLE_OF_LIBFDT) {
+               ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
+               if (ret)
+                       return ret;
+       }
+
+       if (IMAGE_ENABLE_OF_LIBFDT && of_size) {
+               ret = image_setup_libfdt(images, *of_flat_tree, of_size, lmb);
+               if (ret)
+                       return ret;
+       }
+
+       return 0;
+}
+#endif /* CONFIG_LMB */
+#endif /* !USE_HOSTCC */