* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
+
+#define DEBUG
+
#ifndef USE_HOSTCC
-# include <common.h>
-# include <watchdog.h>
-#else
-# include "mkimage.h"
+#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
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+#include <rtc.h>
+#endif
+
+#if defined(CONFIG_FIT)
+#include <fdt.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+
+#ifdef CONFIG_CMD_BDI
+extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+#else
+#include "mkimage.h"
+#endif /* USE_HOSTCC*/
+
#include <image.h>
unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
return (dcrc == image_get_dcrc (hdr));
}
+#ifndef USE_HOSTCC
int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
{
ulong dcrc = 0;
char *s = getenv ("verify");
return (s && (*s == 'n')) ? 0 : 1;
}
+
+void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
+{
+#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 */
+
+/**
+ * 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 (image_header_t *hdr)
+{
+ ulong i, count = 0;
+ ulong *size;
+
+ /* get start of the image payload, which in case of multi
+ * component images that points to a table of component sizes */
+ size = (ulong *)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 (image_header_t *hdr, ulong idx,
+ ulong *data, ulong *len)
+{
+ int i;
+ ulong *size;
+ ulong offset, tail, 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 = (ulong *)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 (ulong);
+
+ if (idx < count) {
+ *len = size[idx];
+ offset = 0;
+ tail = 0;
+
+ /* go over all indices preceding requested component idx */
+ for (i = 0; i < idx; i++) {
+ /* add up i-th component size */
+ offset += size[i];
+
+ /* add up alignment for i-th component */
+ tail += (4 - size[i] % 4);
+ }
+
+ /* calculate idx-th component data address */
+ *data = img_data + offset + tail;
+ } else {
+ *len = 0;
+ *data = 0;
+ }
+}
+
+#ifndef USE_HOSTCC
+const char* image_get_os_name (uint8_t os)
+{
+ const char *name;
+
+ switch (os) {
+ case IH_OS_INVALID: name = "Invalid OS"; break;
+ case IH_OS_NETBSD: name = "NetBSD"; break;
+ case IH_OS_LINUX: name = "Linux"; break;
+ case IH_OS_VXWORKS: name = "VxWorks"; break;
+ case IH_OS_QNX: name = "QNX"; break;
+ case IH_OS_U_BOOT: name = "U-Boot"; break;
+ case IH_OS_RTEMS: name = "RTEMS"; break;
+#ifdef CONFIG_ARTOS
+ case IH_OS_ARTOS: name = "ARTOS"; break;
+#endif
+#ifdef CONFIG_LYNXKDI
+ case IH_OS_LYNXOS: name = "LynxOS"; break;
+#endif
+ default: name = "Unknown OS"; break;
+ }
+
+ return name;
+}
+
+const char* image_get_arch_name (uint8_t arch)
+{
+ const char *name;
+
+ switch (arch) {
+ case IH_ARCH_INVALID: name = "Invalid Architecture"; break;
+ case IH_ARCH_ALPHA: name = "Alpha"; break;
+ case IH_ARCH_ARM: name = "ARM"; break;
+ case IH_ARCH_AVR32: name = "AVR32"; break;
+ case IH_ARCH_BLACKFIN: name = "Blackfin"; break;
+ case IH_ARCH_I386: name = "Intel x86"; break;
+ case IH_ARCH_IA64: name = "IA64"; break;
+ case IH_ARCH_M68K: name = "M68K"; break;
+ case IH_ARCH_MICROBLAZE:name = "Microblaze"; break;
+ case IH_ARCH_MIPS64: name = "MIPS 64 Bit"; break;
+ case IH_ARCH_MIPS: name = "MIPS"; break;
+ case IH_ARCH_NIOS2: name = "Nios-II"; break;
+ case IH_ARCH_NIOS: name = "Nios"; break;
+ case IH_ARCH_PPC: name = "PowerPC"; break;
+ case IH_ARCH_S390: name = "IBM S390"; break;
+ case IH_ARCH_SH: name = "SuperH"; break;
+ case IH_ARCH_SPARC64: name = "SPARC 64 Bit"; break;
+ case IH_ARCH_SPARC: name = "SPARC"; break;
+ default: name = "Unknown Architecture"; break;
+ }
+
+ return name;
+}
+
+const char* image_get_type_name (uint8_t type)
+{
+ const char *name;
+
+ switch (type) {
+ case IH_TYPE_INVALID: name = "Invalid Image"; break;
+ case IH_TYPE_STANDALONE:name = "Standalone Program"; break;
+ case IH_TYPE_KERNEL: name = "Kernel Image"; break;
+ case IH_TYPE_RAMDISK: name = "RAMDisk Image"; break;
+ case IH_TYPE_MULTI: name = "Multi-File Image"; break;
+ case IH_TYPE_FIRMWARE: name = "Firmware"; break;
+ case IH_TYPE_SCRIPT: name = "Script"; break;
+ case IH_TYPE_FLATDT: name = "Flat Device Tree"; break;
+ default: name = "Unknown Image"; break;
+ }
+
+ return name;
+}
+
+const char* image_get_comp_name (uint8_t comp)
+{
+ const char *name;
+
+ switch (comp) {
+ case IH_COMP_NONE: name = "uncompressed"; break;
+ case IH_COMP_GZIP: name = "gzip compressed"; break;
+ case IH_COMP_BZIP2: name = "bzip2 compressed"; break;
+ default: name = "unknown compression"; break;
+ }
+
+ return name;
+}
+
+static void image_print_type (image_header_t *hdr)
+{
+ const char *os, *arch, *type, *comp;
+
+ os = image_get_os_name (image_get_os (hdr));
+ arch = image_get_arch_name (image_get_arch (hdr));
+ type = image_get_type_name (image_get_type (hdr));
+ comp = image_get_comp_name (image_get_comp (hdr));
+
+ printf ("%s %s %s (%s)", arch, os, type, comp);
+}
+
+void image_print_contents (image_header_t *hdr)
+{
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+ time_t timestamp = (time_t)image_get_time (hdr);
+ struct rtc_time tm;
+#endif
+
+ printf (" Image Name: %.*s\n", IH_NMLEN, image_get_name (hdr));
+
+#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
+ to_tm (timestamp, &tm);
+ printf (" Created: %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);
+#endif
+ puts (" Image Type: ");
+ image_print_type (hdr);
+
+ printf ("\n Data Size: %d Bytes = ", image_get_data_size (hdr));
+ print_size (image_get_data_size (hdr), "\n");
+ printf (" Load Address: %08x\n"
+ " Entry Point: %08x\n",
+ image_get_load (hdr), image_get_ep (hdr));
+
+ if (image_check_type (hdr, IH_TYPE_MULTI)) {
+ int i;
+ ulong data, len;
+ ulong count = image_multi_count (hdr);
+
+ puts (" Contents:\n");
+ for (i = 0; i < count; i++) {
+ image_multi_getimg (hdr, i, &data, &len);
+ printf (" Image %d: %8ld Bytes = ", i, len);
+ print_size (len, "\n");
+ }
+ }
+}
+
+/**
+ * gen_image_get_format - get image format type
+ * @img_addr: image start address
+ *
+ * gen_image_get_format() checks whether provided address points to a valid
+ * legacy or FIT image.
+ *
+ * returns:
+ * image format type or IMAGE_FORMAT_INVALID if no image is present
+ */
+int gen_image_get_format (void *img_addr)
+{
+ ulong format = IMAGE_FORMAT_INVALID;
+ image_header_t *hdr;
+#if defined(CONFIG_FIT)
+ char *fit_hdr;
+#endif
+
+ hdr = (image_header_t *)img_addr;
+ if (image_check_magic(hdr))
+ format = IMAGE_FORMAT_LEGACY;
+#if defined(CONFIG_FIT)
+ else {
+ fit_hdr = (char *)img_addr;
+ if (fdt_check_header (fit_hdr) == 0)
+ format = IMAGE_FORMAT_FIT;
+ }
+#endif
+
+ return format;
+}
+
+/**
+ * gen_get_image - get image from special storage (if necessary)
+ * @img_addr: image start address
+ *
+ * gen_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 gen_get_image (ulong img_addr)
+{
+ ulong ram_addr, h_size, d_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
+
+#ifdef CONFIG_HAS_DATAFLASH
+ if (addr_dataflash (img_addr)){
+ ram_addr = CFG_LOAD_ADDR;
+ debug (" Reading image header from dataflash address "
+ "%08lx to RAM address %08lx\n", img_addr, ram_addr);
+ read_dataflash (img_addr, h_size, (char *)ram_addr);
+ } else
+#endif
+ return img_addr;
+
+ ram_addr = img_addr;
+
+ switch (gen_image_get_format ((void *)ram_addr)) {
+ case IMAGE_FORMAT_LEGACY:
+ d_size = image_get_data_size ((image_header_t *)ram_addr);
+ 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 = fdt_totalsize((void *)ram_addr) - 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;
+ }
+
+#ifdef CONFIG_HAS_DATAFLASH
+ if (addr_dataflash (img_addr)) {
+ 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 *)(ram_addr + h_size));
+ }
+#endif
+
+ return ram_addr;
+}
+
+/**
+ * image_get_ramdisk - get and verify ramdisk image
+ * @cmdtp: command table pointer
+ * @flag: command flag
+ * @argc: command argument count
+ * @argv: command argument list
+ * @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, board is reset
+ */
+image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
+ int argc, char *argv[],
+ ulong rd_addr, uint8_t arch, int verify)
+{
+ image_header_t *rd_hdr;
+
+ show_boot_progress (9);
+ rd_hdr = (image_header_t *)rd_addr;
+
+ if (!image_check_magic (rd_hdr)) {
+ puts ("Bad Magic Number\n");
+ show_boot_progress (-10);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ if (!image_check_hcrc (rd_hdr)) {
+ puts ("Bad Header Checksum\n");
+ show_boot_progress (-11);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ show_boot_progress (10);
+ image_print_contents (rd_hdr);
+
+ if (verify) {
+ puts(" Verifying Checksum ... ");
+ if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
+ puts ("Bad Data CRC\n");
+ show_boot_progress (-12);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ puts("OK\n");
+ }
+
+ show_boot_progress (11);
+
+ 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",
+ image_get_arch_name(arch));
+ show_boot_progress (-13);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ return rd_hdr;
+}
+
+/**
+ * get_ramdisk - main ramdisk handling routine
+ * @cmdtp: command table pointer
+ * @flag: command flag
+ * @argc: command argument count
+ * @argv: command argument list
+ * @images: pointer to the bootm images strcture
+ * @verify: checksum verification flag
+ * @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
+ *
+ * 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:
+ * rd_start and rd_end are set to ramdisk start/end addresses if
+ * ramdisk image is found and valid
+ * rd_start and rd_end are set to 0 if no ramdisk exists
+ * board is reset if ramdisk image is found but corrupted
+ */
+void get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
+ bootm_headers_t *images, int verify, uint8_t arch,
+ ulong *rd_start, ulong *rd_end)
+{
+ ulong rd_addr, rd_load;
+ ulong rd_data, rd_len;
+ image_header_t *rd_hdr;
+#if defined(CONFIG_FIT)
+ void *fit_hdr;
+ const char *fit_uname_config = NULL;
+ const char *fit_uname_ramdisk = NULL;
+ ulong default_addr;
+#endif
+
+ /*
+ * Look for a '-' which indicates to ignore the
+ * ramdisk argument
+ */
+ if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) {
+ debug ("## Skipping init Ramdisk\n");
+ rd_len = rd_data = 0;
+ } else if (argc >= 3) {
+#if defined(CONFIG_FIT)
+ /*
+ * 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 (argv[2], 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 (argv[2], 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(argv[2], NULL, 16);
+ debug ("* ramdisk: cmdline image address = 0x%08lx\n",
+ rd_addr);
+ }
+
+ /* copy from dataflash if needed */
+ printf ("## Loading init Ramdisk Image at %08lx ...\n",
+ rd_addr);
+ rd_addr = gen_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.
+ */
+ switch (gen_image_get_format ((void *)rd_addr)) {
+ case IMAGE_FORMAT_LEGACY:
+
+ debug ("* ramdisk: legacy format image\n");
+
+ rd_hdr = image_get_ramdisk (cmdtp, flag, argc, argv,
+ rd_addr, arch, verify);
+
+ 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:
+ fit_hdr = (void *)rd_addr;
+ debug ("* ramdisk: FIT format image\n");
+ fit_unsupported_reset ("ramdisk");
+ do_reset (cmdtp, flag, argc, argv);
+#endif
+ default:
+ printf ("Wrong Image Format for %s command\n",
+ cmdtp->name);
+ rd_data = rd_len = 0;
+ }
+
+#if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO)
+ /*
+ * We need to copy the ramdisk to SRAM to let Linux boot
+ */
+ if (rd_data) {
+ memmove ((void *)rd_load, (uchar *)rd_data, rd_len);
+ rd_data = rd_load;
+ }
+#endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */
+
+ } else if (images->legacy_hdr_valid &&
+ image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
+ /*
+ * Now check if we have a legacy mult-component image,
+ * get second entry data start address and len.
+ */
+ show_boot_progress (13);
+ printf ("## Loading init Ramdisk from multi component "
+ "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
+ */
+ show_boot_progress (14);
+ rd_len = rd_data = 0;
+ }
+
+ if (!rd_data) {
+ debug ("## No init Ramdisk\n");
+ *rd_start = 0;
+ *rd_end = 0;
+ } 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);
+}
+
+#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
+/**
+ * ramdisk_high - relocate init ramdisk
+ * @rd_data: ramdisk data start address
+ * @rd_len: ramdisk data length
+ * @kbd: kernel board info copy (within BOOTMAPSZ boundary)
+ * @sp_limit: stack pointer limit (including BOOTMAPSZ)
+ * @sp: current stack pointer
+ * @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)
+ *
+ * ramdisk_high() takes a relocation hint from "initrd_high" environement
+ * variable and if requested ramdisk data is moved to a specified location.
+ *
+ * returns:
+ * - 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 new allc_current, next free address below BOOTMAPSZ
+ */
+ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len,
+ bd_t *kbd, ulong sp_limit, ulong sp,
+ ulong *initrd_start, ulong *initrd_end)
+{
+ char *s;
+ ulong initrd_high;
+ int initrd_copy_to_ram = 1;
+ ulong new_alloc_current = alloc_current;
+
+ 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 */
+ if (initrd_high < (kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD))
+ initrd_high = kbd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD;
+ debug ("## Logbuffer at 0x%08lx ", kbd->bi_memsize - LOGBUFF_LEN);
+#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;
+ } else {
+ new_alloc_current = alloc_current - rd_len;
+ *initrd_start = new_alloc_current;
+ *initrd_start &= ~(4096 - 1); /* align on page */
+
+ if (initrd_high) {
+ ulong nsp;
+
+ /*
+ * the inital ramdisk does not need to be within
+ * CFG_BOOTMAPSZ as it is not accessed until after
+ * the mm system is initialised.
+ *
+ * do the stack bottom calculation again and see if
+ * the initrd will fit just below the monitor stack
+ * bottom without overwriting the area allocated
+ * for command line args and board info.
+ */
+ nsp = sp;
+ nsp -= 2048; /* just to be sure */
+ nsp &= ~0xF;
+
+ if (nsp > initrd_high) /* limit as specified */
+ nsp = initrd_high;
+
+ nsp -= rd_len;
+ nsp &= ~(4096 - 1); /* align on page */
+
+ if (nsp >= sp_limit) {
+ *initrd_start = nsp;
+ new_alloc_current = alloc_current;
+ }
+ }
+
+ show_boot_progress (12);
+
+ *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);
+
+ 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 new_alloc_current;
+}
+
+/**
+ * get_boot_sp_limit - calculate stack pointer limit
+ * @sp: current stack pointer
+ *
+ * get_boot_sp_limit() takes current stack pointer adrress and calculates
+ * stack pointer limit, below which kernel boot data (cmdline, board info,
+ * etc.) will be allocated.
+ *
+ * returns:
+ * stack pointer limit
+ */
+ulong get_boot_sp_limit(ulong sp)
+{
+ ulong sp_limit = sp;
+
+ sp_limit -= 2048; /* just to be sure */
+
+ /* make sure sp_limit is within kernel mapped space */
+ if (sp_limit > CFG_BOOTMAPSZ)
+ sp_limit = CFG_BOOTMAPSZ;
+ sp_limit &= ~0xF;
+
+ return sp_limit;
+}
+
+/**
+ * get_boot_cmdline - allocate and initialize kernel cmdline
+ * @alloc_current: current boot allocation address (counting down
+ * from sp_limit)
+ * @cmd_start: pointer to a ulong variable, will hold cmdline start
+ * @cmd_end: pointer to a ulong variable, will hold cmdline end
+ *
+ * get_boot_cmdline() allocates space for kernel command line below
+ * provided alloc_current address. If "bootargs" U-boot environemnt
+ * variable is present its contents is copied to allocated kernel
+ * command line.
+ *
+ * returns:
+ * alloc_current after cmdline allocation
+ */
+ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end)
+{
+ char *cmdline;
+ char *s;
+
+ cmdline = (char *)((alloc_current - CFG_BARGSIZE) & ~0xF);
+
+ 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 (ulong)cmdline;
+}
+
+/**
+ * get_boot_kbd - allocate and initialize kernel copy of board info
+ * @alloc_current: current boot allocation address (counting down
+ * from sp_limit)
+ * @kbd: double pointer to board info data
+ *
+ * get_boot_kbd() - allocates space for kernel copy of board info data.
+ * Space is allocated below provided alloc_current address and kernel
+ * board info is initialized with the current u-boot board info data.
+ *
+ * returns:
+ * alloc_current after kbd allocation
+ */
+ulong get_boot_kbd (ulong alloc_current, bd_t **kbd)
+{
+ *kbd = (bd_t *) (((ulong)alloc_current - sizeof(bd_t)) & ~0xF);
+ **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 (ulong)*kbd;
+}
+#endif /* CONFIG_PPC || CONFIG_M68K */
+
+#if defined(CONFIG_FIT)
+/*****************************************************************************/
+/* New uImage format routines */
+/*****************************************************************************/
+static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr,
+ ulong *addr, const char **name)
+{
+ const char *sep;
+
+ *addr = addr_curr;
+ *name = NULL;
+
+ sep = strchr (spec, sepc);
+ if (sep) {
+ if (sep - spec > 0)
+ *addr = simple_strtoul (spec, NULL, 16);
+
+ *name = sep + 1;
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * fit_parse_conf - parse FIT configuration spec
+ * @spec: input string, containing configuration spec
+ * @add_curr: current image address (to be used as a possible default)
+ * @addr: pointer to a ulong variable, will hold FIT image address of a given
+ * configuration
+ * @conf_name double pointer to a char, will hold pointer to a configuration
+ * unit name
+ *
+ * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
+ * where <addr> is a FIT image address that contains configuration
+ * with a <conf> unit name.
+ *
+ * Address part is optional, and if omitted default add_curr will
+ * be used instead.
+ *
+ * returns:
+ * 1 if spec is a valid configuration string,
+ * addr and conf_name are set accordingly
+ * 0 otherwise
+ */
+inline int fit_parse_conf (const char *spec, ulong addr_curr,
+ ulong *addr, const char **conf_name)
+{
+ return fit_parse_spec (spec, '#', addr_curr, addr, conf_name);
+}
+
+/**
+ * fit_parse_subimage - parse FIT subimage spec
+ * @spec: input string, containing subimage spec
+ * @add_curr: current image address (to be used as a possible default)
+ * @addr: pointer to a ulong variable, will hold FIT image address of a given
+ * subimage
+ * @image_name: double pointer to a char, will hold pointer to a subimage name
+ *
+ * fit_parse_subimage() expects subimage spec in the for of
+ * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
+ * subimage with a <subimg> unit name.
+ *
+ * Address part is optional, and if omitted default add_curr will
+ * be used instead.
+ *
+ * returns:
+ * 1 if spec is a valid subimage string,
+ * addr and image_name are set accordingly
+ * 0 otherwise
+ */
+inline int fit_parse_subimage (const char *spec, ulong addr_curr,
+ ulong *addr, const char **image_name)
+{
+ return fit_parse_spec (spec, ':', addr_curr, addr, image_name);
+}
+
+#endif /* CONFIG_FIT */
+
+#endif /* USE_HOSTCC */
projects / oweals / u-boot.git / blobdiff