diff options
Diffstat (limited to 'src/arch/armv7/lib')
-rw-r--r-- | src/arch/armv7/lib/bootm.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/src/arch/armv7/lib/bootm.c b/src/arch/armv7/lib/bootm.c deleted file mode 100644 index afe1b70814..0000000000 --- a/src/arch/armv7/lib/bootm.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * (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 <u-boot/zlib.h> -#include <arch/byteorder.h> -#include <fdt.h> -#include <libfdt.h> -#include <fdt_support.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ - defined (CONFIG_CMDLINE_TAG) || \ - defined (CONFIG_INITRD_TAG) || \ - defined (CONFIG_SERIAL_TAG) || \ - defined (CONFIG_REVISION_TAG) -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); - -# 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) -# if !defined(CONFIG_VIDEOFLB_ATAG_NOT_SUPPORTED) -static void setup_videolfb_tag (gd_t *gd); -# endif -# endif - -static struct tag *params; -#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ - -static ulong get_sp(void); -#if defined(CONFIG_OF_LIBFDT) && !defined(CONFIG_OF_NO_KERNEL) -static int bootm_linux_fdt(int machid, bootm_headers_t *images); -#endif - -void arch_lmb_reserve(struct lmb *lmb) -{ - ulong sp; - - /* - * 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 CONFIG_SYS_BOOTMAPSZ settings), but in unused - * memory, which means far enough below the current stack - * pointer. - */ - sp = get_sp(); - debug("## Current stack ends at 0x%08lx ", sp); - - /* adjust sp by 1K to be safe */ - sp -= 1024; - lmb_reserve(lmb, sp, - gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp); -} - -static void announce_and_cleanup(void) -{ - printf("\nStarting kernel ...\n\n"); - bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel"); - -#ifdef CONFIG_USB_DEVICE - { - extern void udc_disconnect(void); - udc_disconnect(); - } -#endif - cleanup_before_linux(); -} - -int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) -{ - bd_t *bd = gd->bd; - char *s; - int machid = bd->bi_arch_number; - void (*kernel_entry)(int zero, int arch, uint params); - -#ifdef CONFIG_CMDLINE_TAG - char *commandline = getenv ("bootargs"); -#endif - - if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) - return 1; - - s = getenv ("machid"); - if (s) { - machid = simple_strtoul (s, NULL, 16); - printf ("Using machid 0x%x from environment\n", machid); - } - - bootstage_mark(BOOTSTAGE_ID_RUN_OS); - -#if defined(CONFIG_OF_LIBFDT) && !defined(CONFIG_OF_NO_KERNEL) - if (images->ft_len) - return bootm_linux_fdt(machid, images); -#endif - - kernel_entry = (void (*)(int, int, uint))images->ep; - - debug ("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) kernel_entry); - -#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ - defined (CONFIG_CMDLINE_TAG) || \ - defined (CONFIG_INITRD_TAG) || \ - defined (CONFIG_SERIAL_TAG) || \ - defined (CONFIG_REVISION_TAG) - 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 (images->rd_start && images->rd_end) - setup_initrd_tag (bd, images->rd_start, images->rd_end); -#endif -#if defined (CONFIG_VFD) || defined (CONFIG_LCD) -#if !defined(CONFIG_VIDEOFLB_ATAG_NOT_SUPPORTED) - setup_videolfb_tag ((gd_t *) gd); -#endif -#endif - setup_end_tag (bd); -#endif - - announce_and_cleanup(); - - kernel_entry(0, machid, bd->bi_boot_params); - /* does not return */ - - return 1; -} - -#if defined(CONFIG_OF_LIBFDT) && !defined(CONFIG_OF_NO_KERNEL) -static int fixup_memory_node(void *blob) -{ - bd_t *bd = gd->bd; - int bank; - u64 start[CONFIG_NR_DRAM_BANKS]; - u64 size[CONFIG_NR_DRAM_BANKS]; - - for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { - start[bank] = bd->bi_dram[bank].start; - size[bank] = bd->bi_dram[bank].size; - } - - return fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS); -} - -static int bootm_linux_fdt(int machid, bootm_headers_t *images) -{ - ulong rd_len; - void (*kernel_entry)(int zero, int dt_machid, void *dtblob); - 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; - int ret; - - kernel_entry = (void (*)(int, int, void *))images->ep; - - boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree); - - 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; - -#ifdef CONFIG_OF_BOARD_SETUP - /* Try to reserve 1024 bytes for board fixups */ - if (!fdt_open_into(*of_flat_tree, *of_flat_tree, of_size + 1024)) - of_size += 1024; - /* Call the board-specific fixup routine */ - ft_board_setup(*of_flat_tree, gd->bd); -#endif -#ifdef CONFIG_OF_UPDATE_FDT_BEFORE_BOOT - /* this must be earlier than boot_relocate_fdt */ - ret = fit_update_fdt_before_boot(*of_flat_tree, &of_size); - if (ret) - return ret; -#endif - - ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size); - if (ret) - return ret; - - debug("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) kernel_entry); - - fdt_chosen(*of_flat_tree, 1); - - fixup_memory_node(*of_flat_tree); - - fdt_fixup_ethernet(*of_flat_tree); - - fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1); - - announce_and_cleanup(); - - kernel_entry(0, machid, *of_flat_tree); - /* does not return */ - - return 1; -} -#endif - -#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ - defined (CONFIG_CMDLINE_TAG) || \ - defined (CONFIG_INITRD_TAG) || \ - defined (CONFIG_SERIAL_TAG) || \ - defined (CONFIG_REVISION_TAG) -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); - -#if defined (ATAG_CORE_FLAGS) && \ - defined (ATAG_PAGE_SIZE) && \ - defined (ATAG_CORE_RDEV) - params->u.core.flags = ATAG_CORE_FLAGS; - params->u.core.pagesize = ATAG_PAGE_SIZE; - params->u.core.rootdev = ATAG_CORE_RDEV; -#else - params->u.core.flags = 0; - params->u.core.pagesize = 0; - params->u.core.rootdev = 0; -#endif - - 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) -#if !defined(CONFIG_VIDEOFLB_ATAG_NOT_SUPPORTED) -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_VIDEOFLB_ATAG_NOT_SUPPORTED */ -#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 */ - -static ulong get_sp(void) -{ - ulong ret; - - asm("mov %0, sp" : "=r"(ret) : ); - return ret; -} |