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Diffstat (limited to 'board/esd/common/cmd_loadpci.c')
| -rw-r--r-- | board/esd/common/cmd_loadpci.c | 123 | 
1 files changed, 123 insertions, 0 deletions
| diff --git a/board/esd/common/cmd_loadpci.c b/board/esd/common/cmd_loadpci.c new file mode 100644 index 000000000..3478f825c --- /dev/null +++ b/board/esd/common/cmd_loadpci.c @@ -0,0 +1,123 @@ +/* + * (C) Copyright 2005 + * Matthias Fuchs, esd GmbH Germany, matthias.fuchs@esd-electronics.com + * + * 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> + +#if (CONFIG_COMMANDS & CFG_CMD_BSP) + +extern int do_bootm (cmd_tbl_t *, int, int, char *[]); +extern int do_autoscript (cmd_tbl_t *, int, int, char *[]); + +#define ADDRMASK 0xfffff000 + +/* + * Command loadpci: wait for signal from host and boot image. + */ +int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ +	unsigned int *ptr = 0; +	int count = 0; +	int count2 = 0; +	char addr[16]; +	char str[] = "\\|/-"; +	char *local_args[2]; + +	while(1) { +		/* +		 * Mark sync address +		 */ +		ptr = 0; +		memset(ptr, 0, 0x20); + +		*ptr = 0xffffffff; +		puts("\nWaiting for action from pci host -"); + +		/* +		 * Wait for host to write the start address +		 */ +		while (*ptr == 0xffffffff) { +			count++; +			if (!(count % 100)) { +				count2++; +				putc(0x08); /* backspace */ +				putc(str[count2 % 4]); +			} + +			/* Abort if ctrl-c was pressed */ +			if (ctrlc()) { +				puts("\nAbort\n"); +				return 0; +			} + +			udelay(1000); +		} + +		printf("\nGot bootcode %08x: ", *ptr); +		sprintf(addr, "%08x", *ptr & ADDRMASK); + +		switch (*ptr & ~ADDRMASK) { +		case 0: +			/* +			 * Boot image via bootm +			 */ +			printf("booting image at addr 0x%s ...\n", addr); +			setenv("loadaddr", addr); + +			do_bootm (cmdtp, 0, 0, NULL); +			break; + +		case 1: +			/* +			 * Boot image via autoscr +			 */ +			printf("executing script at addr 0x%s ...\n", addr); + +			local_args[0] = addr; +			local_args[1] = NULL; +			do_autoscript(cmdtp, 0, 1, local_args); +			break; + +		case 2: +			/* +			 * Call run_cmd +			 */ +			printf("running command at addr 0x%s ...\n", addr); +			run_command ((char*)(*ptr & ADDRMASK), 0); +			break; + +		default: +			printf("unhandled boot method\n"); +			break; +		} +	} +} + +U_BOOT_CMD( +	loadpci,	1,	1,	do_loadpci, +	"loadpci - Wait for pci bootcmd and boot it\n", +	NULL +	); + +#endif + |