smdk2500.h

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/*
 * smdk2500.h: SMDK2500 specific defines
 *
 * Copyright (C) 2001  Erik Mouw ([e-mail])
 * Copyright (C) 2003  Russ Dill <[e-mail]>
 *
 * $Id: smdk2500.h,v 1.2 2003/11/27 03:25:52 russd Exp $
 *
 * 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
 *
 */

#ident "$Id: smdk2500.h,v 1.2 2003/11/27 03:25:52 russd Exp $"

#ifndef BLOB_ARCH_SMDK2500_H
#define BLOB_ARCH_SMDK2500_H

/*------------------------------------------------------
 * Protection map for the SMDK2500
 *
 *     0xFFFFFFFF +----------------------+ ---------------------------------
 *                ~                      ~
 *                +       ASIC(2MB)      +   region 3
 *                +     I-Cache : OFF    +   (2 MB)
 *                +     D-Cache : OFF    +
 *     0xF0000000 +----------------------+ ------------
 *                ~                      ~
 *                +      EXTIO(256MB)    +   region 2             region 0
 *                +     I-Cache : OFF    +   (2 MB)                (4 GB)
 *                +     D-Cache : OFF    +
 *     0x80000000 +----------------------+ ---------------------
 *                + SDRAM(1MB) I/D : OFF +           region 7 (1 MB)
 *                +~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ +           -----------
 *                +     SDRAM(32MB)      +   region 1
 *                +     I-Cache : ON     +   (32 MB)
 *                +     D-Cache : ON     +
 *     0x00000000 +----------------------+ ---------------------------------
 *
 */
#define REGION0	0x00000000 | (SZ_4GB << 1)   | 1 @ All memory
#define REGION1	0x00000000 | (SZ_32MB << 1)  | 1 @ SDRAM
#define REGION2	0x80000000 | (SZ_256MB << 1) | 1 @ EXT IO
#define REGION3	0xf0000000 | (SZ_2MB << 1)   | 1 @ ASIC
#define REGION4	0                                @ Disabled
#define REGION5	0                                @ Disabled
#define REGION6	0                                @ Disabled
#define REGION7	0x01F00000 | (SZ_1MB << 1)   | 1 @ Non-cacheable

#define REGIONCACHE	0x02
#define REGIONWB	0x00

#define TERMINAL_SPEED baud_115200

#define CPU_SPEED SPEED_166MHz
#define BUS_SPEED SPEED_133MHz
/*
 * CFGREG : SDRAM Configuration 0 register
 * note that ras, rc, rcd, and rp regs are *actual* values, not
 * the value + 1
 */
#define CFGREG_VAL (RAS(6) | RC(9) | RCD(3) | RP(3) | \
		    D1_128M | D0_128M | CL(3) | NO_AP | XW32)
//#define REFCYC_VAL (GET_MHz(BUS_SPEED) * 15 + ((GET_MHz(BUS_SPEED) * 6) / 10))
#define REFCYC_VAL (0x800)

/* Flash speed in ns */
#define FLASH_SPEED 90

/* GPIO for the LED */
#define LED_GPIO		0x00000001 /* GPIO 0 */


/* the base address were blob-rest is loaded by the first stage loader */
#define BLOB_ABS_BASE_ADDR	(0x00200400)


/* where do various parts live in RAM */
#define BLOB_RAM_BASE		(0x00100000)
#define PARAM_RAM_BASE		(0x00110000)
#define KERNEL_RAM_BASE		(0x00020000)
#define RAMDISK_RAM_BASE	(0x00400000)
#define RAM_START		(0x01000000)

/* and where do they live in flash */
#define BLOB_FLASH_BASE		(0x00000000)
#define SMDK2500_ERASE_BLOCK	(64 * 1024)
#define BLOB_FLASH_LEN		(SMDK2500_ERASE_BLOCK)
#define PARAM_FLASH_BASE	(BLOB_FLASH_BASE + BLOB_FLASH_LEN)
#define PARAM_FLASH_LEN		(SMDK2500_ERASE_BLOCK)
#define KERNEL_FLASH_BASE	(PARAM_FLASH_BASE + PARAM_FLASH_LEN)
#define KERNEL_FLASH_LEN	(SMDK2500_ERASE_BLOCK * (32 - 2))

#define PARAM_START PARAM_FLASH_BASE
#define PARAM_LEN PARAM_FLASH_LEN

/* the position of the kernel boot parameters */
#define BOOT_PARAMS		(0x00000100)

/* the size (in kbytes) to which the compressed ramdisk expands */
#define RAMDISK_SIZE		(8 * 1024)
#define LOAD_RAMDISK		0 /* don't load ramdisk into ram */



#endif