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/*
* Copyright (C) 2008 Embedded Alley Solutions, Inc.
*
* (C) Copyright 2009 Freescale Semiconductor, Inc.
*
* 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
*/
#ifndef __CONFIG_H
#define __CONFIG_H
#include <asm/sizes.h>
/*
* Define this to make U-Boot skip low level initialization when loaded
* by initial bootloader. Not required by NAND U-Boot version but IS
* required for a NOR version used to burn the real NOR U-Boot into
* NOR Flash. NAND and NOR support for DaVinci chips is mutually exclusive
* so it is NOT possible to build a U-Boot with both NAND and NOR routines.
* NOR U-Boot is loaded directly from Flash so it must perform all the
* low level initialization itself. NAND version is loaded by an initial
* bootloader (UBL in TI-ese) that performs such an initialization so it's
* skipped in NAND version. The third DaVinci boot mode loads a bootloader
* via UART0 and that bootloader in turn loads and runs U-Boot (or whatever)
* performing low level init prior to loading. All that means we can NOT use
* NAND version to put U-Boot into NOR because it doesn't have NOR support and
* we can NOT use NOR version because it performs low level initialization
* effectively destroying itself in DDR memory. That's why a separate NOR
* version with this define is needed. It is loaded via UART, then one uses
* it to somehow download a proper NOR version built WITHOUT this define to
* RAM (tftp?) and burn it to NOR Flash. I would be probably able to squeeze
* NOR support into the initial bootloader so it won't be needed but DaVinci
* static RAM might be too small for this (I have something like 2Kbytes left
* as of now, without NOR support) so this might've not happened...
*
*/
/*===================*/
/* SoC Configuration */
/*===================*/
#define CONFIG_ARM926EJS /* arm926ejs CPU core */
#define CONFIG_MX28 /* STMP378x SoC */
#define CONFIG_SYS_CLK_FREQ 120000000 /* Arm Clock frequency */
#define CONFIG_USE_TIMER0 /* use timer 0 */
#define CONFIG_SYS_HZ 1000 /* Ticks per second */
/*=============*/
/* Memory Info */
/*=============*/
#define CONFIG_SYS_MALLOC_LEN (0x10000 + 128*1024) /* malloc() len */
#define CONFIG_SYS_GBL_DATA_SIZE 128 /* reserved for initial data */
#define CONFIG_SYS_MEMTEST_START 0x40000000 /* memtest start address */
#define CONFIG_SYS_MEMTEST_END 0x41000000 /* 16MB RAM test */
#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */
#define CONFIG_STACKSIZE (256*1024) /* regular stack */
#define PHYS_SDRAM_1 0x40000000 /* mDDR Start */
#define PHYS_SDRAM_1_SIZE 0x02000000 /* mDDR size 32MB */
/*====================*/
/* Serial Driver info */
/*====================*/
#define CONFIG_STMP3XXX_DBGUART /* 378x debug UART */
#define CONFIG_DBGUART_CLK 24000000
#define CONFIG_BAUDRATE 115200 /* Default baud rate */
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
/*====================*/
/* SPI Driver info */
/*====================*/
#define CONFIG_SSP_CLK 48000000
#define CONFIG_SPI_CLK 3000000
#define CONFIG_SPI_SSP1
#undef CONFIG_SPI_SSP2
/*=====================*/
/* Flash & Environment */
/*=====================*/
#define CONFIG_SYS_NO_FLASH /* Flash is not supported */
#define CONFIG_ENV_IS_NOWHERE /* Store ENV in memory only */
#define CONFIG_ENV_SIZE 0x20000
/*==============================*/
/* U-Boot general configuration */
/*==============================*/
#undef CONFIG_USE_IRQ /* No IRQ/FIQ in U-Boot */
#define CONFIG_MISC_INIT_R
#define CONFIG_NETMASK 255.255.255.0
#define CONFIG_IPADDR 192.167.10.2
#define CONFIG_SERVERIP 192.167.10.1
#define CONFIG_BOOTDELAY 2
#define CONFIG_BOOTFILE "uImage" /* Boot file name */
#define CONFIG_SYS_PROMPT "stmp378x U-Boot > "
/* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
/* Print buffer sz */
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
/* Boot Argument Buffer Size */
#define CONFIG_SYS_LOAD_ADDR 0x40400000
/* default Linux kernel load address */
#define CONFIG_VERSION_VARIABLE
#define CONFIG_AUTO_COMPLETE /* Won't work with hush so far, may be later */
#define CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2 "> "
#define CONFIG_CMDLINE_EDITING
#define CFG_LONGHELP
#define CONFIG_CRC32_VERIFY
#define CONFIG_MX_CYCLIC
/*===================*/
/* Linux Information */
/*===================*/
#define LINUX_BOOT_PARAM_ADDR 0x40000100
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_BOOTARGS "console=ttyAM0,115200n8 "\
"root=/dev/mtdblock1 rootfstype=jffs2 lcd_panel=lms350"
#define CONFIG_BOOTCOMMAND "tftpboot ; bootm"
/*=================*/
/* U-Boot commands */
/*=================*/
#include <config_cmd_default.h>
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_DHCP
#undef CONFIG_CMD_DIAG
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
#define CONFIG_CMD_NET
#define CONFIG_CMD_SAVES
#undef CONFIG_CMD_IMLS
/* Ethernet chip - select an alternative driver */
#define CONFIG_ENC28J60_ETH
#define CONFIG_ENC28J60_ETH_SPI_BUS 0
#define CONFIG_ENC28J60_ETH_SPI_CS 0
#endif /* __CONFIG_H */
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