ENGR00119716: MX28 basic support.

Add mx28 to u-boot and pass the compiling.

Signed-off-by: Terry Lv <r65388@freescale.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/include/configs/mx28.h b/include/configs/mx28.h
new file mode 100644
index 0000000..4af0a28
--- /dev/null
+++ b/include/configs/mx28.h
@@ -0,0 +1,150 @@
+/*
+ * 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 */