MX31: Add basic support for Freescale i.MX31 PDK board.

Add support for Freescale's i.MX31 PDK board (a.k.a. 3 stack board).

This patch assumes that some other program performs the actual
NAND boot.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Acked-by: Fabio Estevam <fabioestevam@yahoo.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

2 files changed, 164 insertions, 0 deletions

diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
index c2e7dcf..76f4d53 100644
--- a/include/asm-arm/arch-mx31/mx31-regs.h
+++ b/include/asm-arm/arch-mx31/mx31-regs.h
@@ -84,6 +84,8 @@
 #define IPU_CONF_IC_EN		(1<<1)
 #define IPU_CONF_SCI_EN		(1<<0)
 
+#define ARM_PPMRR		0x40000015
+
 #define WDOG_BASE		0x53FDC000
 
 /*
diff --git a/include/configs/mx31pdk.h b/include/configs/mx31pdk.h
new file mode 100644
index 0000000..7167e9d
--- /dev/null
+++ b/include/configs/mx31pdk.h
@@ -0,0 +1,162 @@
+/*
+ * (C) Copyright 2008 Magnus Lilja <lilja.magnus@gmail.com>
+ *
+ * (C) Copyright 2004
+ * Texas Instruments.
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Kshitij Gupta <kshitij@ti.com>
+ *
+ * Configuration settings for the Freescale i.MX31 PDK board.
+ *
+ * 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_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
+#define CONFIG_MX31_CLK32	32768
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS	1
+#define CONFIG_INITRD_TAG		1
+
+/* No support for NAND boot for i.MX31 PDK yet, so we rely on some other
+ * program to initialize the SDRAM.
+ */
+#define CONFIG_SKIP_LOWLEVEL_INIT
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 128 * 1024)
+/* Bytes reserved for initial data */
+#define CONFIG_SYS_GBL_DATA_SIZE	128
+
+/*
+ * Hardware drivers
+ */
+
+#define CONFIG_MXC_UART		1
+#define CONFIG_SYS_MX31_UART1	1
+
+#define CONFIG_HARD_SPI		1
+#define CONFIG_MXC_SPI		1
+#define CONFIG_DEFAULT_SPI_BUS	1
+#define CONFIG_DEFAULT_SPI_MODE	(SPI_MODE_2 | SPI_CS_HIGH)
+
+#define CONFIG_RTC_MC13783	1
+
+/* MC13783 connected to CSPI2 and SS2 */
+#define CONFIG_MC13783_SPI_BUS	1
+#define CONFIG_MC13783_SPI_CS	2
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{9600, 19200, 38400, 57600, 115200}
+
+/***********************************************************
+ * Command definition
+ ***********************************************************/
+
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SPI
+#define CONFIG_CMD_DATE
+
+/*
+ * Disabled due to compilation errors in cmd_bootm.c (IMLS seems to require
+ * that CFG_NO_FLASH is undefined).
+ */
+#undef CONFIG_CMD_IMLS
+
+#define CONFIG_BOOTDELAY	3
+
+#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 0x81000000 uImage-mx31; bootm\0"
+
+#define CONFIG_DRIVER_SMC911X		1
+#define CONFIG_DRIVER_SMC911X_BASE	0xB6000000
+#define CONFIG_DRIVER_SMC911X_32_BIT	1
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP	/* undef to save memory */
+#define CONFIG_SYS_PROMPT	"uboot> "
+#define CONFIG_SYS_CBSIZE	256	/* Console I/O Buffer Size */
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + \
+				sizeof(CONFIG_SYS_PROMPT)+16)
+/* max number of command args */
+#define CONFIG_SYS_MAXARGS	16
+/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
+
+/* memtest works on */
+#define CONFIG_SYS_MEMTEST_START	0x80000000
+#define CONFIG_SYS_MEMTEST_END		0x10000
+
+/* default load address */
+#define CONFIG_SYS_LOAD_ADDR		0x81000000
+
+#define CONFIG_SYS_HZ			1000
+
+#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
+ */
+/* No NOR flash present */
+#define CONFIG_SYS_NO_FLASH	1
+
+#define CONFIG_ENV_IS_NOWHERE	1
+
+#define CONFIG_ENV_SIZE		(128 * 1024)
+
+#endif /* __CONFIG_H */