cmd_boot.c.svn-base

u-boot loader common files, like cpu, clock, environment...etc...

/*
 * (C) Copyright 2000-2003
 * Wolfgang Denk, DENX Software Engineering, [e-mail].
 *
 * 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
 */

/*
 * Misc boot support
 */
#include <common.h>
#include <command.h>
#include <net.h>
#include <asm/mach-types.h>


/* -------------------------------------------------------------------- */

int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
#if defined(CONFIG_I386)
	DECLARE_GLOBAL_DATA_PTR;
#endif
	ulong	addr, rc;
	int     rcode = 0;

	if (argc < 2) {
		printf ("Usage:\n%s\n", cmdtp->usage);
		return 1;
	}

	if(strcmp(argv[1], "linux") == 0){
		addr = (ulong)KERNEL_RAM_BASE;
		printf("## Starting Linux kernel at 0x%08lx ...\n", KERNEL_RAM_BASE);
	}else if(strcmp(argv[1], "wince") == 0){
		addr = (ulong)WINCE_KERNEL_RAM_BASE;
		printf("## Starting WinCE kernel at 0x%08lx ... \n", WINCE_KERNEL_RAM_BASE);
	}else{
		addr = simple_strtoul(argv[1], NULL, 16);
		printf ("## Starting application at 0x%08lX ...\n", addr);
	}

	/*
	 * pass address parameter as argv[0] (aka command name),
	 * and all remaining args
	 */
#if defined(CONFIG_I386)
	/*
	 * x86 does not use a dedicated register to pass the pointer
	 * to the global_data
	 */
	argv[0] = (char *)gd;
#endif
#if !defined(CONFIG_NIOS)
	rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
#else
	/*
	 * Nios function pointers are address >> 1
	 */
	rc = ((ulong (*)(int, char *[]))(addr>>1)) (--argc, &argv[1]);
#endif
	if (rc != 0) rcode = 1;

	printf ("## Application terminated, rc = 0x%lX\n", rc);
	return rcode;
}

/* -------------------------------------------------------------------- */

U_BOOT_CMD(
	go, CFG_MAXARGS, 1,	do_go,
	"go      - start application at address 'addr'\n",
	"addr [arg ...]\n    - start application at address 'addr'\n"
	"      passing 'arg' as arguments\n"
	"      if arg is \"kernel\".. start at address 0x30008000\n"
);

extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);

U_BOOT_CMD(
	reset, 1, 0,	do_reset,
	"reset   - Perform RESET of the CPU\n",
	NULL
);

#if (CONFIG_COMMANDS & CONFIG_INTEL_28F128J3C) || \
	(CONFIG_COMMANDS & CONFIG_SMC_K9S1208)
void do_bootrom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	volatile unsigned long *img_src = 0, *img_dst = 0;
	long kernel_param[2];
	void (*theKernel)(int zero, int arch);
	int len, i, which_os = 0;
	const char * nand_boot_cmd;

	if(strcmp(argv[1], "wince") == 0)		which_os = 1;
	
	if(which_os == 0){	// booting linux kernel
		kernel_param[0] = 0;
		kernel_param[1] = MACH_TYPE_MBA2410;

#if (CONFIG_MBA2410)
		kernel_param[1] = MACH_TYPE_MBA2410;
#elif (CONFIG_MBA2440)
		kernel_param[1] = MACH_TYPE_MBA2440;
#elif (CONFIG_smdk2443)    //s3c2443 added by maddy220109
                kernel_param[1] = MACH_TYPE_smdk2443;

#endif

		printf("Loading images from boot flash to RAM\n\n");

		sprintf(nand_boot_cmd, "nandr t 0x%x 0x%x 0x%x; nandr t 0x%x 0x%x 0x%x; go linux",
			KERNEL_RAM_BASE, KERNEL_ROM_BASE, KERNEL_MAX_SIZE,
			RAMDISK_RAM_BASE, RAMDISK_ROM_BASE, RAMDISK_MAX_SIZE);

		run_command(nand_boot_cmd, 0);

/*		//in case of INTEL 28F28J3C
		//copy kernel from flash to memory
		img_src = (unsigned long *)KERNEL_ROM_BASE;
		img_dst = (unsigned long *)KERNEL_RAM_BASE;
		len = KERNEL_MAX_SIZE;

		while(len--){
			*img_dst++ = *img_src++;
			if(len%0x40000 == 0)	printf(".");
		}

		//copy ramdisk from flash to memory
		img_src = (unsigned long *)RAMDISK_ROM_BASE;
		img_dst = (unsigned long *)RAMDISK_RAM_BASE;
		len = RAMDISK_MAX_SIZE;

		while(len--){
			*img_dst++ = *img_src++;
			if(len%0x80000 == 0) printf(".");
		}
		printf("\n\n");
	
		theKernel = (void (*)(int, int))KERNEL_RAM_BASE;
		theKernel(kernel_param[0], kernel_param[1]);
*/

	}else if(which_os == 1){ // booting WinCE kernel
		printf("Loading images from bootROM to RAM\n\n");

		sprintf(nand_boot_cmd, "nandr t 0x%x 0x%x 0x%x; go wince",
			WINCE_KERNEL_RAM_BASE, WINCE_KERNEL_ROM_BASE, WINCE_KERNEL_MAX_SIZE);	

			run_command(nand_boot_cmd, 0);
	}
	
		printf("kernel returned.. Something Wrong... \n");
		return;
}

U_BOOT_CMD(
    bootrom, CFG_MAXARGS, 0, do_bootrom,
	"bootrom   - just typing bootrom and enter\n",
    "bootrom   - linux kernel booting from 0x80000(zImage)\n"
);
#endif //(CONFIG_COMMANDS & CONFIG_INTEL_28F128J3C)