parent
f1871033f1
commit
a4b702a62f
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@ -8,3 +8,4 @@ obj-y += ppcstring.o
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obj-y += ticks.o
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obj-y += time.o
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obj-y += misc.o
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obj-y += ppclinux.o
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@ -0,0 +1,462 @@
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#include <common.h>
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#include <watchdog.h>
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#ifdef CONFIG_OF_FLAT_TREE
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#include <ft_build.h>
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#endif
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static void __attribute__((noinline))
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do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
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int argc, char *argv[],
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ulong addr,
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ulong *len_ptr,
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int verify)
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{
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ulong sp;
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ulong len, checksum;
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ulong initrd_start, initrd_end;
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ulong cmd_start, cmd_end;
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ulong initrd_high;
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ulong data;
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int initrd_copy_to_ram = 1;
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char *cmdline;
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char *s;
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bd_t *kbd;
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void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
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image_header_t *hdr = &header;
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#ifdef CONFIG_OF_FLAT_TREE
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char *of_flat_tree = NULL;
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ulong of_data = 0;
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#endif
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if ((s = getenv ("initrd_high")) != NULL) {
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/* a value of "no" or a similar string will act like 0,
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* turning the "load high" feature off. This is intentional.
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*/
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initrd_high = simple_strtoul(s, NULL, 16);
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if (initrd_high == ~0)
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initrd_copy_to_ram = 0;
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} else { /* not set, no restrictions to load high */
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initrd_high = ~0;
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}
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#ifdef CONFIG_LOGBUFFER
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kbd=gd->bd;
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/* Prevent initrd from overwriting logbuffer */
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if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
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initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
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debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
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#endif
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/*
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* Booting a (Linux) kernel image
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*
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* Allocate space for command line and board info - the
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* address should be as high as possible within the reach of
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* the kernel (see CFG_BOOTMAPSZ settings), but in unused
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* memory, which means far enough below the current stack
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* pointer.
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*/
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asm( "mr %0,1": "=r"(sp) : );
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debug ("## Current stack ends at 0x%08lX ", sp);
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sp -= 2048; /* just to be sure */
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if (sp > CFG_BOOTMAPSZ)
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sp = CFG_BOOTMAPSZ;
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sp &= ~0xF;
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debug ("=> set upper limit to 0x%08lX\n", sp);
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cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
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kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
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if ((s = getenv("bootargs")) == NULL)
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s = "";
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strcpy (cmdline, s);
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cmd_start = (ulong)&cmdline[0];
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cmd_end = cmd_start + strlen(cmdline);
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*kbd = *(gd->bd);
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#ifdef DEBUG
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printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
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do_bdinfo (NULL, 0, 0, NULL);
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#endif
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if ((s = getenv ("clocks_in_mhz")) != NULL) {
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/* convert all clock information to MHz */
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kbd->bi_intfreq /= 1000000L;
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kbd->bi_busfreq /= 1000000L;
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#if defined(CONFIG_MPC8220)
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kbd->bi_inpfreq /= 1000000L;
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kbd->bi_pcifreq /= 1000000L;
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kbd->bi_pevfreq /= 1000000L;
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kbd->bi_flbfreq /= 1000000L;
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kbd->bi_vcofreq /= 1000000L;
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#endif
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#if defined(CONFIG_CPM2)
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kbd->bi_cpmfreq /= 1000000L;
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kbd->bi_brgfreq /= 1000000L;
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kbd->bi_sccfreq /= 1000000L;
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kbd->bi_vco /= 1000000L;
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#endif
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#if defined(CONFIG_MPC5xxx)
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kbd->bi_ipbfreq /= 1000000L;
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kbd->bi_pcifreq /= 1000000L;
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#endif /* CONFIG_MPC5xxx */
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}
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kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong)) ntohl(hdr->ih_ep);
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/*
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* Check if there is an initrd image
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*/
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#ifdef CONFIG_OF_FLAT_TREE
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/* Look for a '-' which indicates to ignore the ramdisk argument */
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if (argc >= 3 && strcmp(argv[2], "-") == 0) {
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debug ("Skipping initrd\n");
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len = data = 0;
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}
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else
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#endif
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if (argc >= 3) {
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debug ("Not skipping initrd\n");
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SHOW_BOOT_PROGRESS (9);
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addr = simple_strtoul(argv[2], NULL, 16);
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printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
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/* Copy header so we can blank CRC field for re-calculation */
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memmove (&header, (char *)addr, sizeof(image_header_t));
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if (ntohl(hdr->ih_magic) != IH_MAGIC) {
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puts ("Bad Magic Number\n");
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SHOW_BOOT_PROGRESS (-10);
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do_reset (cmdtp, flag, argc, argv);
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}
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data = (ulong)&header;
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len = sizeof(image_header_t);
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checksum = ntohl(hdr->ih_hcrc);
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hdr->ih_hcrc = 0;
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if (crc32 (0, (uchar *)data, len) != checksum) {
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puts ("Bad Header Checksum\n");
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SHOW_BOOT_PROGRESS (-11);
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do_reset (cmdtp, flag, argc, argv);
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}
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SHOW_BOOT_PROGRESS (10);
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print_image_hdr (hdr);
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data = addr + sizeof(image_header_t);
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len = ntohl(hdr->ih_size);
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if (verify) {
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ulong csum = 0;
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#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
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ulong cdata = data, edata = cdata + len;
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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puts (" Verifying Checksum ... ");
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#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
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while (cdata < edata) {
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ulong chunk = edata - cdata;
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if (chunk > CHUNKSZ)
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chunk = CHUNKSZ;
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csum = crc32 (csum, (uchar *)cdata, chunk);
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cdata += chunk;
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WATCHDOG_RESET();
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}
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#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
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csum = crc32 (0, (uchar *)data, len);
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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if (csum != ntohl(hdr->ih_dcrc)) {
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puts ("Bad Data CRC\n");
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SHOW_BOOT_PROGRESS (-12);
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do_reset (cmdtp, flag, argc, argv);
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}
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puts ("OK\n");
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}
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SHOW_BOOT_PROGRESS (11);
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if ((hdr->ih_os != IH_OS_LINUX) ||
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(hdr->ih_arch != IH_CPU_PPC) ||
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(hdr->ih_type != IH_TYPE_RAMDISK) ) {
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puts ("No Linux PPC Ramdisk Image\n");
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SHOW_BOOT_PROGRESS (-13);
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do_reset (cmdtp, flag, argc, argv);
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}
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/*
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* Now check if we have a multifile image
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*/
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} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
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u_long tail = ntohl(len_ptr[0]) % 4;
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int i;
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SHOW_BOOT_PROGRESS (13);
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/* skip kernel length and terminator */
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data = (ulong)(&len_ptr[2]);
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/* skip any additional image length fields */
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for (i=1; len_ptr[i]; ++i)
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data += 4;
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/* add kernel length, and align */
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data += ntohl(len_ptr[0]);
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if (tail) {
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data += 4 - tail;
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}
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len = ntohl(len_ptr[1]);
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} else {
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/*
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* no initrd image
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*/
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SHOW_BOOT_PROGRESS (14);
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len = data = 0;
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}
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#ifdef CONFIG_OF_FLAT_TREE
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if(argc > 3) {
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of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
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hdr = (image_header_t *)of_flat_tree;
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if (*(ulong *)of_flat_tree == OF_DT_HEADER) {
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#ifndef CFG_NO_FLASH
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if (addr2info((ulong)of_flat_tree) != NULL)
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of_data = (ulong)of_flat_tree;
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#endif
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} else if (ntohl(hdr->ih_magic) == IH_MAGIC) {
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printf("## Flat Device Tree Image at %08lX\n", hdr);
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print_image_hdr(hdr);
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if ((ntohl(hdr->ih_load) < ((unsigned long)hdr + ntohl(hdr->ih_size) + sizeof(hdr))) &&
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((ntohl(hdr->ih_load) + ntohl(hdr->ih_size)) > (unsigned long)hdr)) {
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printf ("ERROR: Load address overwrites Flat Device Tree uImage\n");
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return;
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}
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printf(" Verifying Checksum ... ");
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memmove (&header, (char *)hdr, sizeof(image_header_t));
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checksum = ntohl(header.ih_hcrc);
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header.ih_hcrc = 0;
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if(checksum != crc32(0, (uchar *)&header, sizeof(image_header_t))) {
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printf("ERROR: Flat Device Tree header checksum is invalid\n");
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return;
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}
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checksum = ntohl(hdr->ih_dcrc);
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addr = (ulong)((uchar *)(hdr) + sizeof(image_header_t));
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len = ntohl(hdr->ih_size);
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if(checksum != crc32(0, (uchar *)addr, len)) {
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printf("ERROR: Flat Device Tree checksum is invalid\n");
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return;
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}
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printf("OK\n");
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if (ntohl(hdr->ih_type) != IH_TYPE_FLATDT) {
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printf ("ERROR: uImage not Flat Device Tree type\n");
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return;
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}
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if (ntohl(hdr->ih_comp) != IH_COMP_NONE) {
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printf("ERROR: uImage is not uncompressed\n");
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return;
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}
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if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
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printf ("ERROR: uImage data is not a flat device tree\n");
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return;
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}
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memmove((void *)ntohl(hdr->ih_load),
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(void *)(of_flat_tree + sizeof(image_header_t)),
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ntohl(hdr->ih_size));
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of_flat_tree = (char *)ntohl(hdr->ih_load);
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} else {
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printf ("Did not find a flat flat device tree at address %08lX\n", of_flat_tree);
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return;
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}
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printf (" Booting using flat device tree at 0x%x\n",
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of_flat_tree);
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} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]) && (len_ptr[2])) {
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u_long tail = ntohl(len_ptr[0]) % 4;
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int i;
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/* skip kernel length, initrd length, and terminator */
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of_data = (ulong)(&len_ptr[3]);
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/* skip any additional image length fields */
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for (i=2; len_ptr[i]; ++i)
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of_data += 4;
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/* add kernel length, and align */
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of_data += ntohl(len_ptr[0]);
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if (tail) {
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of_data += 4 - tail;
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}
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/* add initrd length, and align */
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tail = ntohl(len_ptr[1]) % 4;
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of_data += ntohl(len_ptr[1]);
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if (tail) {
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of_data += 4 - tail;
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}
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if (((struct boot_param_header *)of_data)->magic != OF_DT_HEADER) {
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printf ("ERROR: image is not a flat device tree\n");
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return;
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}
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if (((struct boot_param_header *)of_data)->totalsize != ntohl(len_ptr[2])) {
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printf ("ERROR: flat device tree size does not agree with image\n");
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return;
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}
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}
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#endif
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if (!data) {
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debug ("No initrd\n");
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}
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if (data) {
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if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
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initrd_start = data;
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initrd_end = initrd_start + len;
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} else {
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initrd_start = (ulong)kbd - len;
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initrd_start &= ~(4096 - 1); /* align on page */
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if (initrd_high) {
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ulong nsp;
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/*
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* the inital ramdisk does not need to be within
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* CFG_BOOTMAPSZ as it is not accessed until after
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* the mm system is initialised.
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*
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* do the stack bottom calculation again and see if
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* the initrd will fit just below the monitor stack
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* bottom without overwriting the area allocated
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* above for command line args and board info.
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*/
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asm( "mr %0,1": "=r"(nsp) : );
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nsp -= 2048; /* just to be sure */
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nsp &= ~0xF;
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if (nsp > initrd_high) /* limit as specified */
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nsp = initrd_high;
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nsp -= len;
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nsp &= ~(4096 - 1); /* align on page */
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if (nsp >= sp)
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initrd_start = nsp;
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}
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SHOW_BOOT_PROGRESS (12);
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debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
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data, data + len - 1, len, len);
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initrd_end = initrd_start + len;
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printf (" Loading Ramdisk to %08lx, end %08lx ... ",
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initrd_start, initrd_end);
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#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
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{
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size_t l = len;
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void *to = (void *)initrd_start;
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void *from = (void *)data;
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while (l > 0) {
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size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
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WATCHDOG_RESET();
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memmove (to, from, tail);
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to += tail;
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from += tail;
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l -= tail;
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}
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}
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#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
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memmove ((void *)initrd_start, (void *)data, len);
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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puts ("OK\n");
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}
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} else {
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initrd_start = 0;
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initrd_end = 0;
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}
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debug ("## Transferring control to Linux (at address %08lx) ...\n",
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(ulong)kernel);
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SHOW_BOOT_PROGRESS (15);
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#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
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unlock_ram_in_cache();
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#endif
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#ifdef CONFIG_OF_FLAT_TREE
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/* move of_flat_tree if needed */
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if (of_data) {
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ulong of_start, of_len;
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of_len = ((struct boot_param_header *)of_data)->totalsize;
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/* provide extra 8k pad */
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if (initrd_start)
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of_start = initrd_start - of_len - 8192;
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else
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of_start = (ulong)kbd - of_len - 8192;
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of_start &= ~(4096 - 1); /* align on page */
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debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
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of_data, of_data + of_len - 1, of_len, of_len);
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of_flat_tree = (char *)of_start;
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printf (" Loading Device Tree to %08lx, end %08lx ... ",
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of_start, of_start + of_len - 1);
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memmove ((void *)of_start, (void *)of_data, of_len);
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}
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#endif
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/*
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* Linux Kernel Parameters (passing board info data):
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* r3: ptr to board info data
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* r4: initrd_start or 0 if no initrd
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* r5: initrd_end - unused if r4 is 0
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* r6: Start of command line string
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* r7: End of command line string
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*/
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#ifdef CONFIG_OF_FLAT_TREE
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if (!of_flat_tree) /* no device tree; boot old style */
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#endif
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(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
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/* does not return */
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#ifdef CONFIG_OF_FLAT_TREE
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/*
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* Linux Kernel Parameters (passing device tree):
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* r3: ptr to OF flat tree, followed by the board info data
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* r4: physical pointer to the kernel itself
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* r5: NULL
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* r6: NULL
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* r7: NULL
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*/
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ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
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/* ft_dump_blob(of_flat_tree); */
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|
||||
(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
|
||||
#endif
|
||||
}
|
||||
|
|
@ -35,10 +35,6 @@
|
|||
#include <environment.h>
|
||||
#include <asm/byteorder.h>
|
||||
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
#include <ft_build.h>
|
||||
#endif
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
/*cmd_boot.c*/
|
||||
|
@ -116,11 +112,7 @@ typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag,
|
|||
extern int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_PPC
|
||||
static boot_os_Fcn do_bootm_linux;
|
||||
#else
|
||||
extern boot_os_Fcn do_bootm_linux;
|
||||
#endif
|
||||
#ifdef CONFIG_SILENT_CONSOLE
|
||||
static void fixup_silent_linux (void);
|
||||
#endif
|
||||
|
@ -169,11 +161,11 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
|||
return 1;
|
||||
}
|
||||
|
||||
// if (spec_str_to_info(argv[1], &mem)) {
|
||||
// printf("-ENOPARSE\n");
|
||||
// return -1;
|
||||
// }
|
||||
#warning: FIXME: bootm is broken
|
||||
if (spec_str_to_info(argv[1], &mem)) {
|
||||
printf("-ENOPARSE\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
addr = mem.start + mem.device->map_base;
|
||||
|
||||
SHOW_BOOT_PROGRESS (1);
|
||||
|
@ -493,462 +485,6 @@ fixup_silent_linux ()
|
|||
}
|
||||
#endif /* CONFIG_SILENT_CONSOLE */
|
||||
|
||||
#ifdef CONFIG_PPC
|
||||
static void __attribute__((noinline))
|
||||
do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
|
||||
int argc, char *argv[],
|
||||
ulong addr,
|
||||
ulong *len_ptr,
|
||||
int verify)
|
||||
{
|
||||
ulong sp;
|
||||
ulong len, checksum;
|
||||
ulong initrd_start, initrd_end;
|
||||
ulong cmd_start, cmd_end;
|
||||
ulong initrd_high;
|
||||
ulong data;
|
||||
int initrd_copy_to_ram = 1;
|
||||
char *cmdline;
|
||||
char *s;
|
||||
bd_t *kbd;
|
||||
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
|
||||
image_header_t *hdr = &header;
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
char *of_flat_tree = NULL;
|
||||
ulong of_data = 0;
|
||||
#endif
|
||||
|
||||
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
|
||||
kbd=gd->bd;
|
||||
/* 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
|
||||
|
||||
/*
|
||||
* Booting a (Linux) kernel image
|
||||
*
|
||||
* Allocate space for command line and board info - the
|
||||
* address should be as high as possible within the reach of
|
||||
* the kernel (see CFG_BOOTMAPSZ settings), but in unused
|
||||
* memory, which means far enough below the current stack
|
||||
* pointer.
|
||||
*/
|
||||
|
||||
asm( "mr %0,1": "=r"(sp) : );
|
||||
|
||||
debug ("## Current stack ends at 0x%08lX ", sp);
|
||||
|
||||
sp -= 2048; /* just to be sure */
|
||||
if (sp > CFG_BOOTMAPSZ)
|
||||
sp = CFG_BOOTMAPSZ;
|
||||
sp &= ~0xF;
|
||||
|
||||
debug ("=> set upper limit to 0x%08lX\n", sp);
|
||||
|
||||
cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
|
||||
kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
|
||||
|
||||
if ((s = getenv("bootargs")) == NULL)
|
||||
s = "";
|
||||
|
||||
strcpy (cmdline, s);
|
||||
|
||||
cmd_start = (ulong)&cmdline[0];
|
||||
cmd_end = cmd_start + strlen(cmdline);
|
||||
|
||||
*kbd = *(gd->bd);
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
|
||||
|
||||
do_bdinfo (NULL, 0, 0, NULL);
|
||||
#endif
|
||||
|
||||
if ((s = getenv ("clocks_in_mhz")) != NULL) {
|
||||
/* convert all clock information to MHz */
|
||||
kbd->bi_intfreq /= 1000000L;
|
||||
kbd->bi_busfreq /= 1000000L;
|
||||
#if defined(CONFIG_MPC8220)
|
||||
kbd->bi_inpfreq /= 1000000L;
|
||||
kbd->bi_pcifreq /= 1000000L;
|
||||
kbd->bi_pevfreq /= 1000000L;
|
||||
kbd->bi_flbfreq /= 1000000L;
|
||||
kbd->bi_vcofreq /= 1000000L;
|
||||
#endif
|
||||
#if defined(CONFIG_CPM2)
|
||||
kbd->bi_cpmfreq /= 1000000L;
|
||||
kbd->bi_brgfreq /= 1000000L;
|
||||
kbd->bi_sccfreq /= 1000000L;
|
||||
kbd->bi_vco /= 1000000L;
|
||||
#endif
|
||||
#if defined(CONFIG_MPC5xxx)
|
||||
kbd->bi_ipbfreq /= 1000000L;
|
||||
kbd->bi_pcifreq /= 1000000L;
|
||||
#endif /* CONFIG_MPC5xxx */
|
||||
}
|
||||
|
||||
kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong)) ntohl(hdr->ih_ep);
|
||||
|
||||
/*
|
||||
* Check if there is an initrd image
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
/* Look for a '-' which indicates to ignore the ramdisk argument */
|
||||
if (argc >= 3 && strcmp(argv[2], "-") == 0) {
|
||||
debug ("Skipping initrd\n");
|
||||
len = data = 0;
|
||||
}
|
||||
else
|
||||
#endif
|
||||
if (argc >= 3) {
|
||||
debug ("Not skipping initrd\n");
|
||||
SHOW_BOOT_PROGRESS (9);
|
||||
|
||||
addr = simple_strtoul(argv[2], NULL, 16);
|
||||
|
||||
printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
|
||||
|
||||
/* Copy header so we can blank CRC field for re-calculation */
|
||||
memmove (&header, (char *)addr, sizeof(image_header_t));
|
||||
|
||||
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
|
||||
puts ("Bad Magic Number\n");
|
||||
SHOW_BOOT_PROGRESS (-10);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
data = (ulong)&header;
|
||||
len = sizeof(image_header_t);
|
||||
|
||||
checksum = ntohl(hdr->ih_hcrc);
|
||||
hdr->ih_hcrc = 0;
|
||||
|
||||
if (crc32 (0, (uchar *)data, len) != checksum) {
|
||||
puts ("Bad Header Checksum\n");
|
||||
SHOW_BOOT_PROGRESS (-11);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (10);
|
||||
|
||||
print_image_hdr (hdr);
|
||||
|
||||
data = addr + sizeof(image_header_t);
|
||||
len = ntohl(hdr->ih_size);
|
||||
|
||||
if (verify) {
|
||||
ulong csum = 0;
|
||||
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
|
||||
ulong cdata = data, edata = cdata + len;
|
||||
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
|
||||
|
||||
puts (" Verifying Checksum ... ");
|
||||
|
||||
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
|
||||
|
||||
while (cdata < edata) {
|
||||
ulong chunk = edata - cdata;
|
||||
|
||||
if (chunk > CHUNKSZ)
|
||||
chunk = CHUNKSZ;
|
||||
csum = crc32 (csum, (uchar *)cdata, chunk);
|
||||
cdata += chunk;
|
||||
|
||||
WATCHDOG_RESET();
|
||||
}
|
||||
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
|
||||
csum = crc32 (0, (uchar *)data, len);
|
||||
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
|
||||
|
||||
if (csum != ntohl(hdr->ih_dcrc)) {
|
||||
puts ("Bad Data CRC\n");
|
||||
SHOW_BOOT_PROGRESS (-12);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
puts ("OK\n");
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (11);
|
||||
|
||||
if ((hdr->ih_os != IH_OS_LINUX) ||
|
||||
(hdr->ih_arch != IH_CPU_PPC) ||
|
||||
(hdr->ih_type != IH_TYPE_RAMDISK) ) {
|
||||
puts ("No Linux PPC Ramdisk Image\n");
|
||||
SHOW_BOOT_PROGRESS (-13);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
/*
|
||||
* Now check if we have a multifile image
|
||||
*/
|
||||
} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
|
||||
u_long tail = ntohl(len_ptr[0]) % 4;
|
||||
int i;
|
||||
|
||||
SHOW_BOOT_PROGRESS (13);
|
||||
|
||||
/* skip kernel length and terminator */
|
||||
data = (ulong)(&len_ptr[2]);
|
||||
/* skip any additional image length fields */
|
||||
for (i=1; len_ptr[i]; ++i)
|
||||
data += 4;
|
||||
/* add kernel length, and align */
|
||||
data += ntohl(len_ptr[0]);
|
||||
if (tail) {
|
||||
data += 4 - tail;
|
||||
}
|
||||
|
||||
len = ntohl(len_ptr[1]);
|
||||
|
||||
} else {
|
||||
/*
|
||||
* no initrd image
|
||||
*/
|
||||
SHOW_BOOT_PROGRESS (14);
|
||||
|
||||
len = data = 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
if(argc > 3) {
|
||||
of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
|
||||
hdr = (image_header_t *)of_flat_tree;
|
||||
|
||||
if (*(ulong *)of_flat_tree == OF_DT_HEADER) {
|
||||
#ifndef CFG_NO_FLASH
|
||||
if (addr2info((ulong)of_flat_tree) != NULL)
|
||||
of_data = (ulong)of_flat_tree;
|
||||
#endif
|
||||
} else if (ntohl(hdr->ih_magic) == IH_MAGIC) {
|
||||
printf("## Flat Device Tree Image at %08lX\n", hdr);
|
||||
print_image_hdr(hdr);
|
||||
|
||||
if ((ntohl(hdr->ih_load) < ((unsigned long)hdr + ntohl(hdr->ih_size) + sizeof(hdr))) &&
|
||||
((ntohl(hdr->ih_load) + ntohl(hdr->ih_size)) > (unsigned long)hdr)) {
|
||||
printf ("ERROR: Load address overwrites Flat Device Tree uImage\n");
|
||||
return;
|
||||
}
|
||||
|
||||
printf(" Verifying Checksum ... ");
|
||||
memmove (&header, (char *)hdr, sizeof(image_header_t));
|
||||
checksum = ntohl(header.ih_hcrc);
|
||||
header.ih_hcrc = 0;
|
||||
|
||||
if(checksum != crc32(0, (uchar *)&header, sizeof(image_header_t))) {
|
||||
printf("ERROR: Flat Device Tree header checksum is invalid\n");
|
||||
return;
|
||||
}
|
||||
|
||||
checksum = ntohl(hdr->ih_dcrc);
|
||||
addr = (ulong)((uchar *)(hdr) + sizeof(image_header_t));
|
||||
len = ntohl(hdr->ih_size);
|
||||
|
||||
if(checksum != crc32(0, (uchar *)addr, len)) {
|
||||
printf("ERROR: Flat Device Tree checksum is invalid\n");
|
||||
return;
|
||||
}
|
||||
printf("OK\n");
|
||||
|
||||
if (ntohl(hdr->ih_type) != IH_TYPE_FLATDT) {
|
||||
printf ("ERROR: uImage not Flat Device Tree type\n");
|
||||
return;
|
||||
}
|
||||
if (ntohl(hdr->ih_comp) != IH_COMP_NONE) {
|
||||
printf("ERROR: uImage is not uncompressed\n");
|
||||
return;
|
||||
}
|
||||
if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
|
||||
printf ("ERROR: uImage data is not a flat device tree\n");
|
||||
return;
|
||||
}
|
||||
|
||||
memmove((void *)ntohl(hdr->ih_load),
|
||||
(void *)(of_flat_tree + sizeof(image_header_t)),
|
||||
ntohl(hdr->ih_size));
|
||||
of_flat_tree = (char *)ntohl(hdr->ih_load);
|
||||
} else {
|
||||
printf ("Did not find a flat flat device tree at address %08lX\n", of_flat_tree);
|
||||
return;
|
||||
}
|
||||
printf (" Booting using flat device tree at 0x%x\n",
|
||||
of_flat_tree);
|
||||
} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]) && (len_ptr[2])) {
|
||||
u_long tail = ntohl(len_ptr[0]) % 4;
|
||||
int i;
|
||||
|
||||
/* skip kernel length, initrd length, and terminator */
|
||||
of_data = (ulong)(&len_ptr[3]);
|
||||
/* skip any additional image length fields */
|
||||
for (i=2; len_ptr[i]; ++i)
|
||||
of_data += 4;
|
||||
/* add kernel length, and align */
|
||||
of_data += ntohl(len_ptr[0]);
|
||||
if (tail) {
|
||||
of_data += 4 - tail;
|
||||
}
|
||||
|
||||
/* add initrd length, and align */
|
||||
tail = ntohl(len_ptr[1]) % 4;
|
||||
of_data += ntohl(len_ptr[1]);
|
||||
if (tail) {
|
||||
of_data += 4 - tail;
|
||||
}
|
||||
|
||||
if (((struct boot_param_header *)of_data)->magic != OF_DT_HEADER) {
|
||||
printf ("ERROR: image is not a flat device tree\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (((struct boot_param_header *)of_data)->totalsize != ntohl(len_ptr[2])) {
|
||||
printf ("ERROR: flat device tree size does not agree with image\n");
|
||||
return;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
if (!data) {
|
||||
debug ("No initrd\n");
|
||||
}
|
||||
|
||||
if (data) {
|
||||
if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
|
||||
initrd_start = data;
|
||||
initrd_end = initrd_start + len;
|
||||
} else {
|
||||
initrd_start = (ulong)kbd - len;
|
||||
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
|
||||
* above for command line args and board info.
|
||||
*/
|
||||
asm( "mr %0,1": "=r"(nsp) : );
|
||||
nsp -= 2048; /* just to be sure */
|
||||
nsp &= ~0xF;
|
||||
if (nsp > initrd_high) /* limit as specified */
|
||||
nsp = initrd_high;
|
||||
nsp -= len;
|
||||
nsp &= ~(4096 - 1); /* align on page */
|
||||
if (nsp >= sp)
|
||||
initrd_start = nsp;
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (12);
|
||||
|
||||
debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
|
||||
data, data + len - 1, len, len);
|
||||
|
||||
initrd_end = initrd_start + len;
|
||||
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
|
||||
initrd_start, initrd_end);
|
||||
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
|
||||
{
|
||||
size_t l = len;
|
||||
void *to = (void *)initrd_start;
|
||||
void *from = (void *)data;
|
||||
|
||||
while (l > 0) {
|
||||
size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
|
||||
WATCHDOG_RESET();
|
||||
memmove (to, from, tail);
|
||||
to += tail;
|
||||
from += tail;
|
||||
l -= tail;
|
||||
}
|
||||
}
|
||||
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
|
||||
memmove ((void *)initrd_start, (void *)data, len);
|
||||
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
|
||||
puts ("OK\n");
|
||||
}
|
||||
} else {
|
||||
initrd_start = 0;
|
||||
initrd_end = 0;
|
||||
}
|
||||
|
||||
debug ("## Transferring control to Linux (at address %08lx) ...\n",
|
||||
(ulong)kernel);
|
||||
|
||||
SHOW_BOOT_PROGRESS (15);
|
||||
|
||||
#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
|
||||
unlock_ram_in_cache();
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
/* move of_flat_tree if needed */
|
||||
if (of_data) {
|
||||
ulong of_start, of_len;
|
||||
of_len = ((struct boot_param_header *)of_data)->totalsize;
|
||||
/* provide extra 8k pad */
|
||||
if (initrd_start)
|
||||
of_start = initrd_start - of_len - 8192;
|
||||
else
|
||||
of_start = (ulong)kbd - of_len - 8192;
|
||||
of_start &= ~(4096 - 1); /* align on page */
|
||||
debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
|
||||
of_data, of_data + of_len - 1, of_len, of_len);
|
||||
|
||||
of_flat_tree = (char *)of_start;
|
||||
printf (" Loading Device Tree to %08lx, end %08lx ... ",
|
||||
of_start, of_start + of_len - 1);
|
||||
memmove ((void *)of_start, (void *)of_data, of_len);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Linux Kernel Parameters (passing board info data):
|
||||
* r3: ptr to board info data
|
||||
* r4: initrd_start or 0 if no initrd
|
||||
* r5: initrd_end - unused if r4 is 0
|
||||
* r6: Start of command line string
|
||||
* r7: End of command line string
|
||||
*/
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
if (!of_flat_tree) /* no device tree; boot old style */
|
||||
#endif
|
||||
(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
|
||||
/* does not return */
|
||||
|
||||
#ifdef CONFIG_OF_FLAT_TREE
|
||||
/*
|
||||
* Linux Kernel Parameters (passing device tree):
|
||||
* r3: ptr to OF flat tree, followed by the board info data
|
||||
* r4: physical pointer to the kernel itself
|
||||
* r5: NULL
|
||||
* r6: NULL
|
||||
* r7: NULL
|
||||
*/
|
||||
ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
|
||||
/* ft_dump_blob(of_flat_tree); */
|
||||
|
||||
(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
|
||||
#endif
|
||||
}
|
||||
#endif /* CONFIG_PPC */
|
||||
|
||||
static void
|
||||
do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
|
||||
int argc, char *argv[],
|
||||
|
@ -1057,10 +593,10 @@ do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
|
|||
*/
|
||||
|
||||
/* this used to be the top of memory, but was wrong... */
|
||||
#ifdef CONFIG_PPC
|
||||
|
||||
/* get stack pointer */
|
||||
asm volatile ("mr %0,1" : "=r"(top) );
|
||||
#endif
|
||||
|
||||
debug ("## Current stack ends at 0x%08lX ", top);
|
||||
|
||||
top -= 2048; /* just to be sure */
|
||||
|
|
Loading…
Reference in New Issue