+++ /dev/null
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-#include <command.h>
-#include <image.h>
-#include <zlib.h>
-#include <asm/byteorder.h>
-#ifdef CONFIG_HAS_DATAFLASH
-#include <dataflash.h>
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG) || \
- defined (CONFIG_VFD) || \
- defined (CONFIG_LCD)
-static void setup_start_tag (bd_t *bd);
-
-# ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags (bd_t *bd);
-# endif
-static void setup_commandline_tag (bd_t *bd, char *commandline);
-
-#if 0
-static void setup_ramdisk_tag (bd_t *bd);
-#endif
-# ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag (bd_t *bd, ulong initrd_start,
- ulong initrd_end);
-# endif
-static void setup_end_tag (bd_t *bd);
-
-# if defined (CONFIG_VFD) || defined (CONFIG_LCD)
-static void setup_videolfb_tag (gd_t *gd);
-# endif
-
-
-static struct tag *params;
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
-
-extern image_header_t header; /* from cmd_bootm.c */
-
-
-void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
- ulong addr, ulong *len_ptr, int verify)
-{
- ulong len = 0, checksum;
- ulong initrd_start, initrd_end;
- ulong data;
- void (*theKernel)(int zero, int arch, uint params);
- image_header_t *hdr = &header;
- bd_t *bd = gd->bd;
- int machid = bd->bi_arch_number;
- char *s;
-
-#ifdef CONFIG_CMDLINE_TAG
- char *commandline = getenv ("bootargs");
-#endif
-
- theKernel = (void (*)(int, int, uint))ntohl(hdr->ih_ep);
-
- s = getenv ("machid");
- if (s) {
- machid = simple_strtoul (s, NULL, 16);
- printf ("Using machid 0x%x from environment\n", machid);
- }
-
- /*
- * Check if there is an initrd image
- */
- if (argc >= 3) {
- 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 */
-#ifdef CONFIG_HAS_DATAFLASH
- if (addr_dataflash (addr)) {
- read_dataflash (addr, sizeof (image_header_t),
- (char *) &header);
- } else
-#endif
- memcpy (&header, (char *) addr,
- sizeof (image_header_t));
-
- if (ntohl (hdr->ih_magic) != IH_MAGIC) {
- printf ("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, (unsigned char *) data, len) != checksum) {
- printf ("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);
-
-#ifdef CONFIG_HAS_DATAFLASH
- if (addr_dataflash (addr)) {
- read_dataflash (data, len, (char *) CFG_LOAD_ADDR);
- data = CFG_LOAD_ADDR;
- }
-#endif
-
- if (verify) {
- ulong csum = 0;
-
- printf (" Verifying Checksum ... ");
- csum = crc32 (0, (unsigned char *) data, len);
- if (csum != ntohl (hdr->ih_dcrc)) {
- printf ("Bad Data CRC\n");
- show_boot_progress (-12);
- do_reset (cmdtp, flag, argc, argv);
- }
- printf ("OK\n");
- }
-
- show_boot_progress (11);
-
- if ((hdr->ih_os != IH_OS_LINUX) ||
- (hdr->ih_arch != IH_CPU_ARM) ||
- (hdr->ih_type != IH_TYPE_RAMDISK)) {
- printf ("No Linux ARM Ramdisk Image\n");
- show_boot_progress (-13);
- do_reset (cmdtp, flag, argc, argv);
- }
-
-#if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || \
- defined(CONFIG_ARMADILLO) || defined(CONFIG_M501SK)
- /*
- *we need to copy the ramdisk to SRAM to let Linux boot
- */
- memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
- data = ntohl(hdr->ih_load);
-#endif /* CONFIG_B2 || CONFIG_EVB4510 */
-
- /*
- * Now check if we have a multifile image
- */
- } else if ((hdr->ih_type == IH_TYPE_MULTI) && (len_ptr[1])) {
- ulong 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 DEBUG
- if (!data) {
- printf ("No initrd\n");
- }
-#endif
-
- if (data) {
- initrd_start = data;
- initrd_end = initrd_start + len;
- } else {
- initrd_start = 0;
- initrd_end = 0;
- }
-
- show_boot_progress (15);
-
- debug ("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong) theKernel);
-
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG) || \
- defined (CONFIG_LCD) || \
- defined (CONFIG_VFD)
- setup_start_tag (bd);
-#ifdef CONFIG_SERIAL_TAG
- setup_serial_tag (¶ms);
-#endif
-#ifdef CONFIG_REVISION_TAG
- setup_revision_tag (¶ms);
-#endif
-#ifdef CONFIG_SETUP_MEMORY_TAGS
- setup_memory_tags (bd);
-#endif
-#ifdef CONFIG_CMDLINE_TAG
- setup_commandline_tag (bd, commandline);
-#endif
-#ifdef CONFIG_INITRD_TAG
- if (initrd_start && initrd_end)
- setup_initrd_tag (bd, initrd_start, initrd_end);
-#endif
-#if defined (CONFIG_VFD) || defined (CONFIG_LCD)
- setup_videolfb_tag ((gd_t *) gd);
-#endif
- setup_end_tag (bd);
-#endif
-
- /* we assume that the kernel is in place */
- printf ("\nStarting kernel ...\n\n");
-
-#ifdef CONFIG_USB_DEVICE
- {
- extern void udc_disconnect (void);
- udc_disconnect ();
- }
-#endif
-
- cleanup_before_linux ();
-
- theKernel (0, machid, bd->bi_boot_params);
-}
-
-
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG) || \
- defined (CONFIG_LCD) || \
- defined (CONFIG_VFD)
-static void setup_start_tag (bd_t *bd)
-{
- params = (struct tag *) bd->bi_boot_params;
-
- params->hdr.tag = ATAG_CORE;
- params->hdr.size = tag_size (tag_core);
-
- params->u.core.flags = 0;
- params->u.core.pagesize = 0;
- params->u.core.rootdev = 0;
-
- params = tag_next (params);
-}
-
-
-#ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags (bd_t *bd)
-{
- int i;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- params->hdr.tag = ATAG_MEM;
- params->hdr.size = tag_size (tag_mem32);
-
- params->u.mem.start = bd->bi_dram[i].start;
- params->u.mem.size = bd->bi_dram[i].size;
-
- params = tag_next (params);
- }
-}
-#endif /* CONFIG_SETUP_MEMORY_TAGS */
-
-
-static void setup_commandline_tag (bd_t *bd, char *commandline)
-{
- char *p;
-
- if (!commandline)
- return;
-
- /* eat leading white space */
- for (p = commandline; *p == ' '; p++);
-
- /* skip non-existent command lines so the kernel will still
- * use its default command line.
- */
- if (*p == '\0')
- return;
-
- params->hdr.tag = ATAG_CMDLINE;
- params->hdr.size =
- (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2;
-
- strcpy (params->u.cmdline.cmdline, p);
-
- params = tag_next (params);
-}
-
-
-#ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end)
-{
- /* an ATAG_INITRD node tells the kernel where the compressed
- * ramdisk can be found. ATAG_RDIMG is a better name, actually.
- */
- params->hdr.tag = ATAG_INITRD2;
- params->hdr.size = tag_size (tag_initrd);
-
- params->u.initrd.start = initrd_start;
- params->u.initrd.size = initrd_end - initrd_start;
-
- params = tag_next (params);
-}
-#endif /* CONFIG_INITRD_TAG */
-
-
-#if defined (CONFIG_VFD) || defined (CONFIG_LCD)
-extern ulong calc_fbsize (void);
-static void setup_videolfb_tag (gd_t *gd)
-{
- /* An ATAG_VIDEOLFB node tells the kernel where and how large
- * the framebuffer for video was allocated (among other things).
- * Note that a _physical_ address is passed !
- *
- * We only use it to pass the address and size, the other entries
- * in the tag_videolfb are not of interest.
- */
- params->hdr.tag = ATAG_VIDEOLFB;
- params->hdr.size = tag_size (tag_videolfb);
-
- params->u.videolfb.lfb_base = (u32) gd->fb_base;
- /* Fb size is calculated according to parameters for our panel
- */
- params->u.videolfb.lfb_size = calc_fbsize();
-
- params = tag_next (params);
-}
-#endif /* CONFIG_VFD || CONFIG_LCD */
-
-#ifdef CONFIG_SERIAL_TAG
-void setup_serial_tag (struct tag **tmp)
-{
- struct tag *params = *tmp;
- struct tag_serialnr serialnr;
- void get_board_serial(struct tag_serialnr *serialnr);
-
- get_board_serial(&serialnr);
- params->hdr.tag = ATAG_SERIAL;
- params->hdr.size = tag_size (tag_serialnr);
- params->u.serialnr.low = serialnr.low;
- params->u.serialnr.high= serialnr.high;
- params = tag_next (params);
- *tmp = params;
-}
-#endif
-
-#ifdef CONFIG_REVISION_TAG
-void setup_revision_tag(struct tag **in_params)
-{
- u32 rev = 0;
- u32 get_board_rev(void);
-
- rev = get_board_rev();
- params->hdr.tag = ATAG_REVISION;
- params->hdr.size = tag_size (tag_revision);
- params->u.revision.rev = rev;
- params = tag_next (params);
-}
-#endif /* CONFIG_REVISION_TAG */
-
-
-static void setup_end_tag (bd_t *bd)
-{
- params->hdr.tag = ATAG_NONE;
- params->hdr.size = 0;
-}
-
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
projects / u-boot / blobdiff