+++ /dev/null
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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 <malloc.h>
-#include <devices.h>
-#include <version.h>
-#include <net.h>
-#include <environment.h>
-#ifdef CONFIG_DANUBE
-#include <asm-mips/danube.h>
-#include <configs/danube.h>
-#endif
-#include "LzmaWrapper.h"
-
-//#define DEBUG_ENABLE_BOOTSTRAP_PRINTF
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < BOOTSTRAP_CFG_MONITOR_BASE) || \
- (CFG_ENV_ADDR >= (BOOTSTRAP_CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
- defined(CFG_ENV_IS_IN_NVRAM)
-#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
-#else
-#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
-#endif
-
-#undef DEBUG
-
-#if (CONFIG_COMMANDS & CFG_CMD_NAND)
-extern unsigned long nand_init(void);
-#endif
-
-#ifdef CONFIG_SERIAL_FLASH
-extern int serial_flash_init (void);
-#endif
-
-extern int timer_init(void);
-
-extern int incaip_set_cpuclk(void);
-
-extern ulong uboot_end_data_bootstrap;
-extern ulong uboot_end_bootstrap;
-
-ulong monitor_flash_len;
-
-const char version_string[] =
- U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
-
-static char *failed = "*** failed ***\n";
-
-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong mem_malloc_start;
-static ulong mem_malloc_end;
-static ulong mem_malloc_brk;
-
-
-/*
- * The Malloc area is immediately below the monitor copy in DRAM
- */
-static void mem_malloc_init (ulong dest_addr)
-{
-// ulong dest_addr = BOOTSTRAP_CFG_MONITOR_BASE + gd->reloc_off;
-
- mem_malloc_end = dest_addr;
- mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
- mem_malloc_brk = mem_malloc_start;
-
- memset ((void *) mem_malloc_start,
- 0,
- mem_malloc_end - mem_malloc_start);
-}
-
-void *malloc(unsigned int size)
-{
- if(size < (mem_malloc_end - mem_malloc_start))
- {
- mem_malloc_start += size;
- return (void *)(mem_malloc_start - size);
- }
- return NULL;
-}
-
-void *realloc(void *src,unsigned int size)
-{
- return NULL;
-}
-
-void free(void *src)
-{
- return;
-}
-
-
-void *sbrk (ptrdiff_t increment)
-{
- ulong old = mem_malloc_brk;
- ulong new = old + increment;
-
- if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
- return (NULL);
- }
- mem_malloc_brk = new;
- return ((void *) old);
-}
-
-
-static int init_func_ram (void)
-{
-#ifdef CONFIG_BOARD_TYPES
- int board_type = gd->board_type;
-#else
- int board_type = 0; /* use dummy arg */
-#endif
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- puts ("DRAM: ");
-#endif
-
- if ((gd->ram_size = initdram (board_type)) > 0) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- print_size (gd->ram_size, "\n");
-#endif
- return (0);
- }
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- puts (failed);
-#endif
- return (1);
-}
-
-static int display_banner(void)
-{
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("\n\n%s\n\n", version_string);
-#endif
- return (0);
-}
-
-static int init_baudrate (void)
-{
-#if 0
- char tmp[64]; /* long enough for environment variables */
- int i = getenv_r ("baudrate", tmp, sizeof (tmp));
-
- gd->baudrate = (i > 0)
- ? (int) simple_strtoul (tmp, NULL, 10)
- : CONFIG_BAUDRATE;
-#endif
-
- gd->baudrate = CONFIG_BAUDRATE;
-
- return (0);
-}
-#ifdef CONFIG_DANUBE
-static void init_led(void)
-{
-
- *(unsigned long *)0xBE100B18 |= 0x70;
- *(unsigned long *)0xBE100B1C |= 0x70;
- *(unsigned long *)0xBE100B20 &= ~0x70;
- *(unsigned long *)0xBE100B24 |= 0x70;
-#ifdef USE_REFERENCE_BOARD
-
- *DANUBE_LED_CON1 = 0x00000003;
- *DANUBE_LED_CPU0 = 0x0000010;
- *DANUBE_LED_CPU1 = 0x00000000;
- *DANUBE_LED_AR = 0x00000000;
- *DANUBE_LED_CON0 = 0x84000000;
-
-#else
-
- *DANUBE_LED_CON1 = 0x00000007;
- *DANUBE_LED_CPU0 = 0x00001000;
- *DANUBE_LED_CPU1 = 0x00000000;
- *DANUBE_LED_AR = 0x00000000;
- *DANUBE_LED_CON0 = 0x84000000;
-
-#endif
-
-}
-#endif
-/*
- * Breath some life into the board...
- *
- * The first part of initialization is running from Flash memory;
- * its main purpose is to initialize the RAM so that we
- * can relocate the monitor code to RAM.
- */
-
-/*
- * All attempts to come up with a "common" initialization sequence
- * that works for all boards and architectures failed: some of the
- * requirements are just _too_ different. To get rid of the resulting
- * mess of board dependend #ifdef'ed code we now make the whole
- * initialization sequence configurable to the user.
- *
- * The requirements for any new initalization function is simple: it
- * receives a pointer to the "global data" structure as it's only
- * argument, and returns an integer return code, where 0 means
- * "continue" and != 0 means "fatal error, hang the system".
- */
-typedef int (init_fnc_t) (void);
-
-init_fnc_t *init_sequence[] = {
- //timer_init,
- //env_init, /* initialize environment */
-#ifdef CONFIG_INCA_IP
- incaip_set_cpuclk, /* set cpu clock according to environment variable */
-#endif
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- init_baudrate, /* initialze baudrate settings */
- serial_init, /* serial communications setup */
- console_init_f,
- display_banner, /* say that we are here */
-#endif
- init_func_ram,
- //checkboard,
- NULL,
-};
-
-
-void bootstrap_board_init_f(ulong bootflag)
-{
- gd_t gd_data, *id;
- bd_t *bd;
- init_fnc_t **init_fnc_ptr;
- ulong addr, addr_sp, len = (ulong)&uboot_end_bootstrap - BOOTSTRAP_CFG_MONITOR_BASE;
- ulong *s;
- ulong lzmaImageaddr = 0;
-#ifdef CONFIG_PURPLE
- void copy_code (ulong);
-#endif
-
- /* Pointer is writable since we allocated a register for it.
- */
- gd = &gd_data;
- /* compiler optimization barrier needed for GCC >= 3.4 */
- __asm__ __volatile__("": : :"memory");
-
- memset ((void *)gd, 0, sizeof (gd_t));
-
- for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
- if ((*init_fnc_ptr)() != 0) {
- hang ();
- }
- }
-
- /*
- * Now that we have DRAM mapped and working, we can
- * relocate the code and continue running from DRAM.
- */
- addr = CFG_SDRAM_BASE + gd->ram_size;
-
- /* We can reserve some RAM "on top" here.
- */
-
- /* round down to next 4 kB limit.
- */
- addr &= ~(4096 - 1);
- debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
-
- /* Reserve memory for U-Boot code, data & bss
- * round down to next 16 kB limit
- */
- addr -= len;
- addr &= ~(16 * 1024 - 1);
-
- debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
-
- /* Reserve memory for malloc() arena.
- */
- addr_sp = addr - TOTAL_MALLOC_LEN;
- debug ("Reserving %dk for malloc() at: %08lx\n",
- TOTAL_MALLOC_LEN >> 10, addr_sp);
-
- /*
- * (permanently) allocate a Board Info struct
- * and a permanent copy of the "global" data
- */
- addr_sp -= sizeof(bd_t);
- bd = (bd_t *)addr_sp;
- gd->bd = bd;
- debug ("Reserving %d Bytes for Board Info at: %08lx\n",
- sizeof(bd_t), addr_sp);
-
- addr_sp -= sizeof(gd_t);
- id = (gd_t *)addr_sp;
- debug ("Reserving %d Bytes for Global Data at: %08lx\n",
- sizeof (gd_t), addr_sp);
-
- /* Reserve memory for boot params.
- */
- addr_sp -= CFG_BOOTPARAMS_LEN;
- bd->bi_boot_params = addr_sp;
- debug ("Reserving %dk for boot params() at: %08lx\n",
- CFG_BOOTPARAMS_LEN >> 10, addr_sp);
-
- /*
- * Finally, we set up a new (bigger) stack.
- *
- * Leave some safety gap for SP, force alignment on 16 byte boundary
- * Clear initial stack frame
- */
- addr_sp -= 16;
- addr_sp &= ~0xF;
- s = (ulong *)addr_sp;
- *s-- = 0;
- *s-- = 0;
- addr_sp = (ulong)s;
- debug ("Stack Pointer at: %08lx\n", addr_sp);
-
- /*
- * Save local variables to board info struct
- */
- bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
- bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
- bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
-
- memcpy (id, (void *)gd, sizeof (gd_t));
-
- /* On the purple board we copy the code in a special way
- * in order to solve flash problems
- */
-#ifdef CONFIG_PURPLE
- copy_code(addr);
-#endif
-
- lzmaImageaddr = (ulong)&uboot_end_data_bootstrap;
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("\n relocating to address %08x ", addr);
-#endif
-
- bootstrap_relocate_code (addr_sp, id, addr);
-
- /* NOTREACHED - relocate_code() does not return */
-}
-/************************************************************************
- *
- * This is the next part if the initialization sequence: we are now
- * running from RAM and have a "normal" C environment, i. e. global
- * data can be written, BSS has been cleared, the stack size in not
- * that critical any more, etc.
- *
- ************************************************************************
- */
-#define CONFIG_LZMA
-
-void bootstrap_board_init_r (gd_t *id, ulong dest_addr)
-{
- int i;
-
- ulong addr;
- ulong data, len, checksum;
- ulong *len_ptr;
- image_header_t header;
- image_header_t *hdr = &header;
- unsigned int destLen;
- int (*fn)();
-
-#if 1
-#endif
-
-
-
- /* initialize malloc() area */
- mem_malloc_init(dest_addr);
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf("\n Compressed Image at %08x \n ", (BOOTSTRAP_CFG_MONITOR_BASE + ((ulong)&uboot_end_data_bootstrap - dest_addr)));
-#endif
-
- addr = (char *)(BOOTSTRAP_CFG_MONITOR_BASE + ((ulong)&uboot_end_data_bootstrap - dest_addr));
- memmove (&header, (char *)addr, sizeof(image_header_t));
-
- if (ntohl(hdr->ih_magic) != IH_MAGIC) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("Bad Magic Number at address 0x%08lx\n",addr);
-#endif
- return;
- }
-
- data = (ulong)&header;
- len = sizeof(image_header_t);
-
- checksum = ntohl(hdr->ih_hcrc);
- hdr->ih_hcrc = 0;
- if (crc32 (0, (char *)data, len) != checksum) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("Bad Header Checksum\n");
-#endif
- return;
- }
-
- data = addr + sizeof(image_header_t);
- len = ntohl(hdr->ih_size);
-
- len_ptr = (ulong *)data;
-
-
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("Disabling all the interrupts\n");
-#endif
- disable_interrupts();
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf (" Uncompressing UBoot Image ... \n" );
-#endif
-
- /*
- * If we've got less than 4 MB of malloc() space,
- * use slower decompression algorithm which requires
- * at most 2300 KB of memory.
- */
- destLen = 0x0;
-
-#ifdef CONFIG_BZIP2
- i = BZ2_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
- 0x400000, (char *)data, len,
- CFG_MALLOC_LEN < (4096 * 1024), 0);
- if (i != BZ_OK) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i);
-#endif
- return;
- }
-#endif /* CONFIG_BZIP2 */
-
-#ifdef CONFIG_MICROBZIP2
- i = micro_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
- &destLen, (char *)data, len,
- CFG_MALLOC_LEN < (4096 * 1024), 0);
- if (i != RETVAL_OK) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("MICRO_BUNZIP2 ERROR %d - must RESET board to recover\n", i);
-#endif
- //do_reset (cmdtp, flag, argc, argv);
- return;
- }
-#endif
-
-#ifdef CONFIG_LZMA
-#if 0
- i = lzmaBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
- &destLen, (char *)data, len);
-#endif
-
- i = lzma_inflate ((unsigned char *)data, len, (unsigned char*)ntohl(hdr->ih_load), &destLen);
- if (i != LZMA_RESULT_OK) {
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf ("LZMA ERROR %d - must RESET board to recover\n", i);
-#endif
- //do_reset (cmdtp, flag, argc, argv);
- return;
- }
-#endif
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- printf (" Uncompression completed successfully with destLen %d\n ",destLen );
-#endif
-
- fn = ntohl(hdr->ih_load);
-
- (*fn)();
-
- hang ();
-
-}
-
-void hang (void)
-{
-
-#ifdef DEBUG_ENABLE_BOOTSTRAP_PRINTF
- puts ("### ERROR ### Please RESET the board ###\n");
-#endif
- for (;;);
-}
projects / openwrt / svn-archive / archive.git / blobdiff