MX25: Add initial support for MX25PDK

Add the initial support for MX25PDK booting from SD card via internal boot.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

MAINTAINERS

@@ -634,6 +634,7 @@ Kristoffer Ericson <kristoffer.ericson@gmail.com>
 
 Fabio Estevam <fabio.estevam@freescale.com>
 
+	mx25pdk		i.MX25
 	mx31pdk		i.MX31
 	mx53ard		i.MX53
 	mx53smd		i.MX53

board/freescale/mx25pdk/Makefile

@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= mx25pdk.o
+SOBJS	:= lowlevel_init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

board/freescale/mx25pdk/imximage.cfg

@@ -0,0 +1,73 @@
+#
+# (C) Copyright 2009
+# Stefano Babic DENX Software Engineering sbabic@denx.de.
+#
+# 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.
+#
+# Refer docs/README.imxmage for more details about how-to configure
+# and create imximage boot image
+#
+# The syntax is taken as close as possible with the kwbimage
+
+# Boot Device : one of
+# spi, sd (the board has no nand neither onenand)
+
+BOOT_FROM	sd
+
+# Device Configuration Data (DCD)
+#
+# Each entry must have the format:
+# Addr-type           Address        Value
+#
+# where:
+#	Addr-type register length (1,2 or 4 bytes)
+#	Address	  absolute address of the register
+#	value	  value to be stored in the register
+
+# EIM config-CS5 init -- CPLD
+DATA 4 0xB8002050 0x0000D843
+DATA 4 0xB8002054 0x22252521
+DATA 4 0xB8002058 0x22220A00
+
+# DDR2 init
+DATA 4 0xB8001004 0x0076E83A
+DATA 4 0xB8001010 0x00000204
+DATA 4 0xB8001000 0x92210000
+DATA 4 0x80000f00 0x12344321
+DATA 4 0xB8001000 0xB2210000
+DATA 1 0x82000000 0xda
+DATA 1 0x83000000 0xda
+DATA 1 0x81000400 0xda
+DATA 1 0x80000333 0xda
+
+DATA 4 0xB8001000 0x92210000
+DATA 1 0x80000400 0x12345678
+
+DATA 4 0xB8001000 0xA2210000
+DATA 4 0x80000000 0x87654321
+DATA 4 0x80000000 0x87654321
+
+DATA 4 0xB8001000 0xB2210000
+DATA 1 0x80000233 0xda
+DATA 1 0x81000780 0xda
+DATA 1 0x81000400 0xda
+DATA 4 0xB8001000 0x82216080
+DATA 4 0x43FAC454 0x00001000
+
+DATA 4 0x53F80008 0x20034000
+
+# Enable the clocks
+DATA 4 0x53f8000c 0x1fffffff
+DATA 4 0x53f80010 0xffffffff
+DATA 4 0x53f80014 0xfdfff

board/freescale/mx25pdk/lowlevel_init.S

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2011  Freescale Semiconductor
+ *
+ * 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.
+ */
+
+.globl lowlevel_init
+lowlevel_init:
+
+	mov	pc, lr

board/freescale/mx25pdk/mx25pdk.c

@@ -0,0 +1,63 @@
+/*
+ * (C) Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/imx25-pinmux.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				PHYS_SDRAM_1_SIZE);
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+}
+
+int board_early_init_f(void)
+{
+	mx25_uart1_init_pins();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	gd->bd->bi_arch_number = MACH_TYPE_MX25_3DS;
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: MX25PDK\n");
+
+	return 0;
+}

boards.cfg

@@ -144,6 +144,8 @@ rd6281a                      arm         arm926ejs   -                   Marvell
 sheevaplug                   arm         arm926ejs   -                   Marvell        kirkwood
 dockstar                     arm         arm926ejs   -                   Seagate        kirkwood
 jadecpu                      arm         arm926ejs   jadecpu             syteco         mb86r0x
+mx25pdk                      arm         arm926ejs   mx25pdk             freescale      mx25		mx25pdk:IMX_CONFIG=board/freescale/mx25pdk/imximage.cfg
+tx25                         arm         arm926ejs   tx25                karo           mx25
 zmx25                        arm         arm926ejs   zmx25               syteco         mx25
 imx27lite                    arm         arm926ejs   imx27lite           logicpd        mx27
 magnesium                    arm         arm926ejs   imx27lite           logicpd        mx27

include/configs/mx25pdk.h

@@ -0,0 +1,106 @@
+/*
+ * (C) Copyright 2011 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.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* High Level Configuration Options */
+
+#define CONFIG_MX25_CLK32		32768	/* OSC32K frequency */
+#define CONFIG_SYS_HZ			1000
+#define CONFIG_SYS_TEXT_BASE		0x81200000
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 2 * 1024 * 1024)
+
+/* Physical Memory Map */
+
+#define CONFIG_NR_DRAM_BANKS	1
+#define PHYS_SDRAM_1		0x80000000
+#define PHYS_SDRAM_1_SIZE	(64 * 1024 * 1024)
+
+#define CONFIG_BOARD_EARLY_INIT_F
+
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x1000 - \
+						GENERATED_GBL_DATA_SIZE)
+
+/* Memory Test */
+#define CONFIG_SYS_MEMTEST_START	(PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE/2)
+#define CONFIG_SYS_MEMTEST_END		(PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE)
+
+/* Stack sizes */
+#define CONFIG_STACKSIZE	(128 * 1024)	/* regular stack */
+
+/* Serial Info */
+#define CONFIG_MXC_UART
+#define CONFIG_SYS_MX25_UART1
+#define CONFIG_CONS_INDEX	1	/* use UART0 for console */
+#define CONFIG_BAUDRATE		115200	/* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/* No NOR flash present */
+#define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
+#define CONFIG_ENV_SIZE        (8 * 1024)
+#define CONFIG_ENV_IS_NOWHERE
+
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_64BIT_VSPRINTF
+
+/* U-Boot general configuration */
+#define CONFIG_SYS_PROMPT	"MX25PDK U-Boot > "
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE	256	/* Console I/O Buffer Size  */
+/* Print buffer sz */
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + \
+		sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS	16	/* max number of command args */
+/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+
+/* U-Boot commands */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_CACHE
+
+/* Ethernet */
+#define CONFIG_FEC_MXC
+#define CONFIG_FEC_MXC_PHYADDR		0x1f
+#define CONFIG_MII
+#define CONFIG_CMD_NET
+#define CONFIG_NET_MULTI
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_BOOTDELAY	3
+
+#define CONFIG_LOADADDR		0x81000000	/* loadaddr env var */
+#define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"uimage=uImage\0" \
+	"netargs=setenv bootargs console=ttymxc0,${baudrate} " \
+		"root=/dev/nfs " \
+		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+	"bootcmd=run netargs; dhcp ${uimage}; bootm\0" \
+
+#endif /* __CONFIG_H */