Support for the MX31ADS evaluation board from Freescale

This patch adds support for the MX31ADS evaluation board from Freescale,
initialization code is copied from RedBoot sources, also provided by
Freescale.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>

1 files changed, 166 insertions, 0 deletions

diff --git a/include/configs/mx31ads.h b/include/configs/mx31ads.h
new file mode 100644
index 00000000000..77a9a836623
--- /dev/null
+++ b/include/configs/mx31ads.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
+ *
+ * Configuration settings for the MX31ADS Freescale board.
+ *
+ * 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/arch/mx31-regs.h>
+
+ /* High Level Configuration Options */
+#define CONFIG_ARM1136		1		/* This is an arm1136 CPU core */
+#define CONFIG_MX31		1		/* in a mx31 */
+#define CONFIG_MX31_HCLK_FREQ	26000000	/* RedBoot says 26MHz */
+#define CONFIG_MX31_CLK32	32000
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+/*
+ * Disabled for now due to build problems under Debian and a significant increase
+ * in the final file size: 144260 vs. 109536 Bytes.
+ */
+#if 0
+#define CONFIG_OF_LIBFDT		1
+#define CONFIG_FIT			1
+#define CONFIG_FIT_VERBOSE		1
+#endif
+
+#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS	1
+#define CONFIG_INITRD_TAG		1
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN		(CFG_ENV_SIZE + 128 * 1024)
+#define CFG_GBL_DATA_SIZE	128  /* size in bytes reserved for initial data */
+
+/*
+ * Hardware drivers
+ */
+
+#define CONFIG_MX31_UART	1
+#define CFG_MX31_UART1		1
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX	1
+#define CONFIG_BAUDRATE		115200
+#define CFG_BAUDRATE_TABLE	{9600, 19200, 38400, 57600, 115200}
+
+/***********************************************************
+ * Command definition
+ ***********************************************************/
+
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_PING
+
+#define CONFIG_BOOTDELAY	3
+
+#define CONFIG_NETMASK		255.255.255.0
+#define CONFIG_IPADDR		192.168.23.168
+#define CONFIG_SERVERIP		192.168.23.2
+
+#define	CONFIG_EXTRA_ENV_SETTINGS											\
+	"bootargs_base=setenv bootargs console=ttymxc0,115200\0"							\
+	"bootargs_nfs=setenv bootargs $(bootargs) root=/dev/nfs ip=dhcp nfsroot=$(serverip):$(nfsrootfs),v3,tcp\0"	\
+	"bootcmd=run bootcmd_net\0"											\
+	"bootcmd_net=run bootargs_base bootargs_mtd bootargs_nfs; tftpboot 0x80000000 uImage-mx31; bootm\0"		\
+	"prg_uboot=tftpboot 0x80000000 u-boot-mx31ads.bin; protect off 0xa0000000 0xa001ffff; erase 0xa0000000 0xa001ffff; cp.b 0x80000000 0xa0000000 $(filesize)\0"
+
+
+#define CONFIG_DRIVER_CS8900	1
+#define CS8900_BASE		0xb4020300
+#define CS8900_BUS16		1	/* the Linux driver does accesses as shorts */
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP		/* undef to save memory */
+#define CFG_PROMPT		"=> "
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size */
+/* Print Buffer Size */
+#define CFG_PBSIZE		(CFG_CBSIZE+sizeof(CFG_PROMPT)+16)
+#define CFG_MAXARGS		16		/* max number of command args */
+#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size */
+
+#define CFG_MEMTEST_START	0		/* memtest works on */
+#define CFG_MEMTEST_END		0x10000
+
+#undef	CFG_CLKS_IN_HZ		/* everything, incl board info, in Hz */
+
+#define CFG_LOAD_ADDR		CSD0_BASE	/* default load address */
+
+#define CFG_HZ			32000
+
+#define CONFIG_CMDLINE_EDITING	1
+
+/*-----------------------------------------------------------------------
+ * Stack sizes
+ *
+ * The stack sizes are set up in start.S using the settings below
+ */
+#define CONFIG_STACKSIZE	(128 * 1024)	/* regular stack */
+
+/*-----------------------------------------------------------------------
+ * Physical Memory Map
+ */
+#define CONFIG_NR_DRAM_BANKS	1
+#define PHYS_SDRAM_1		CSD0_BASE
+#define PHYS_SDRAM_1_SIZE	(128 * 1024 * 1024)
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+#define CFG_FLASH_BASE		CS0_BASE
+#define CFG_MAX_FLASH_BANKS	1		/* max number of memory banks */
+#define CFG_MAX_FLASH_SECT	262		/* max number of sectors on one chip */
+#define CFG_MONITOR_BASE	CFG_FLASH_BASE	/* Monitor at beginning of flash */
+#define CFG_MONITOR_LEN		(128 * 1024)	/* Reserve 128KiB */
+
+#define	CFG_ENV_IS_IN_FLASH	1
+#define CFG_ENV_SECT_SIZE	(32 * 1024)
+#define CFG_ENV_SIZE		CFG_ENV_SECT_SIZE
+/* S29WS256N NOR flash has 4 32KiB small sectors at the beginning and at the end.
+ * The rest of 32MiB is in 128KiB big sectors. U-Boot occupies the low 4 sectors,
+ * if we put environment next to it, we will have to occupy 128KiB for it.
+ * Putting it at the top of flash we use only 32KiB. */
+#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 32 * 1024 * 1024 - CFG_ENV_SIZE)
+
+/*-----------------------------------------------------------------------
+ * CFI FLASH driver setup
+ */
+#define CFG_FLASH_CFI			1 /* Flash memory is CFI compliant */
+#define CFG_FLASH_CFI_DRIVER		1 /* Use drivers/cfi_flash.c */
+#if 0 /* Doesn't work yet, work in progress */
+#define CFG_FLASH_USE_BUFFER_WRITE	1 /* Use buffered writes (~10x faster) */
+#endif
+#define CFG_FLASH_PROTECTION		1 /* Use hardware sector protection */
+
+/*
+ * JFFS2 partitions
+ */
+#undef CONFIG_JFFS2_CMDLINE
+#define CONFIG_JFFS2_DEV	"nor0"
+
+#endif /* __CONFIG_H */