[people/ms/u-boot.git] / board / esd / adciop / flash.c

/*
 * (C) Copyright 2001
 * Stefan Roese, esd gmbh germany, stefan.roese@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 <ppc4xx.h>
#include <asm/processor.h>

/*
 * include common flash code (for esd boards)
 */
#include "../common/flash.c"

/*-----------------------------------------------------------------------
 * Functions
 */
static ulong flash_get_size (vu_long *addr, flash_info_t *info);
static void flash_get_offsets (ulong base, flash_info_t *info);

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

unsigned long flash_init (void)
{
	unsigned long size_b0, size_b1;
	int i;

	/* Init: no FLASHes known */
	for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
		flash_info[i].flash_id = FLASH_UNKNOWN;
	}

	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);

	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
			size_b0, size_b0<<20);
	}

	size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);

	if (size_b1 > size_b0) {
		printf ("## ERROR: "
			"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
			size_b1, size_b1<<20,
			size_b0, size_b0<<20
		);
		flash_info[0].flash_id	= FLASH_UNKNOWN;
		flash_info[1].flash_id	= FLASH_UNKNOWN;
		flash_info[0].sector_count	= -1;
		flash_info[1].sector_count	= -1;
		flash_info[0].size		= 0;
		flash_info[1].size		= 0;
		return (0);
	}

	/* Re-do sizing to get full correct info */
	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);

	flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);

	/* monitor protection ON by default */
	flash_protect(FLAG_PROTECT_SET,
		      FLASH_BASE0_PRELIM+size_b0-monitor_flash_len,
		      FLASH_BASE0_PRELIM+size_b0-1,
		      &flash_info[0]);

	if (size_b1) {
		/* Re-do sizing to get full correct info */
		size_b1 = flash_get_size((vu_long *)(FLASH_BASE0_PRELIM + size_b0),
					  &flash_info[1]);

		flash_get_offsets (FLASH_BASE0_PRELIM + size_b0, &flash_info[1]);

		/* monitor protection ON by default */
		flash_protect(FLAG_PROTECT_SET,
			      FLASH_BASE0_PRELIM+size_b0+size_b1-monitor_flash_len,
			      FLASH_BASE0_PRELIM+size_b0+size_b1-1,
			      &flash_info[1]);
		/* monitor protection OFF by default (one is enough) */
		flash_protect(FLAG_PROTECT_CLEAR,
			      FLASH_BASE0_PRELIM+size_b0-monitor_flash_len,
			      FLASH_BASE0_PRELIM+size_b0-1,
			      &flash_info[0]);
	} else {
		flash_info[1].flash_id = FLASH_UNKNOWN;
		flash_info[1].sector_count = -1;
	}

	flash_info[0].size = size_b0;
	flash_info[1].size = size_b1;

	return (size_b0 + size_b1);
}
Commit	Line	Data
affae2bf WD	1	/*
	2	* (C) Copyright 2001
	3	* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <ppc4xx.h>
	26	#include <asm/processor.h>
	27
	28	/*
	29	* include common flash code (for esd boards)
	30	*/
	31	#include "../common/flash.c"
	32
	33	/*-----------------------------------------------------------------------
	34	* Functions
	35	*/
	36	static ulong flash_get_size (vu_long addr, flash_info_t info);
	37	static void flash_get_offsets (ulong base, flash_info_t *info);
	38
	39	/*-----------------------------------------------------------------------
	40	*/
	41
	42	unsigned long flash_init (void)
	43	{
	44	unsigned long size_b0, size_b1;
	45	int i;
	46
	47	/* Init: no FLASHes known */
6d0f6bcf	48	for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
affae2bf WD	49	flash_info[i].flash_id = FLASH_UNKNOWN;
	50	}
	51
	52	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
	53
	54	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
	55	printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
	56	size_b0, size_b0<<20);
	57	}
	58
	59	size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
	60
	61	if (size_b1 > size_b0) {
	62	printf ("## ERROR: "
	63	"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
	64	size_b1, size_b1<<20,
	65	size_b0, size_b0<<20
	66	);
	67	flash_info[0].flash_id = FLASH_UNKNOWN;
	68	flash_info[1].flash_id = FLASH_UNKNOWN;
	69	flash_info[0].sector_count = -1;
	70	flash_info[1].sector_count = -1;
	71	flash_info[0].size = 0;
	72	flash_info[1].size = 0;
	73	return (0);
	74	}
	75
	76	/* Re-do sizing to get full correct info */
	77	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
	78
	79	flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
	80
	81	/* monitor protection ON by default */
	82	flash_protect(FLAG_PROTECT_SET,
3b57fe0a	83	FLASH_BASE0_PRELIM+size_b0-monitor_flash_len,
affae2bf WD	84	FLASH_BASE0_PRELIM+size_b0-1,
	85	&flash_info[0]);
	86
	87	if (size_b1) {
	88	/* Re-do sizing to get full correct info */
	89	size_b1 = flash_get_size((vu_long *)(FLASH_BASE0_PRELIM + size_b0),
	90	&flash_info[1]);
	91
	92	flash_get_offsets (FLASH_BASE0_PRELIM + size_b0, &flash_info[1]);
	93
	94	/* monitor protection ON by default */
	95	flash_protect(FLAG_PROTECT_SET,
3b57fe0a	96	FLASH_BASE0_PRELIM+size_b0+size_b1-monitor_flash_len,
affae2bf WD	97	FLASH_BASE0_PRELIM+size_b0+size_b1-1,
affae2bf WD	98	&flash_info[1]);
8bde7f77 WD	99	/* monitor protection OFF by default (one is enough) */
8bde7f77 WD	100	flash_protect(FLAG_PROTECT_CLEAR,
3b57fe0a	101	FLASH_BASE0_PRELIM+size_b0-monitor_flash_len,
affae2bf WD	102	FLASH_BASE0_PRELIM+size_b0-1,
	103	&flash_info[0]);
	104	} else {
	105	flash_info[1].flash_id = FLASH_UNKNOWN;
	106	flash_info[1].sector_count = -1;
	107	}
	108
	109	flash_info[0].size = size_b0;
	110	flash_info[1].size = size_b1;
	111
	112	return (size_b0 + size_b1);
	113	}