Add support for Freescale's mx35pdk board.

The patch adds suupport for the Freescale's mx35pdk board
(known as well as mx35_3stack).

The board boots from the NOR flash. Following devices
are supported:
 - two ethernet devices (FEC and SMC911x on debug board)
 - I2C
 - PMIC (MC13892) via I2C interface
 - UART
 - NOR flash (64MB)
 - NAND flash (2GB)
 - basic access to mc9sdz60 registers via I2C interface

Signed-off-by: Stefano Babic <sbabic@denx.de>

4 files changed, 810 insertions, 0 deletions

diff --git a/board/freescale/mx35pdk/Makefile b/board/freescale/mx35pdk/Makefile
new file mode 100644
index 00000000000..b4a60d6d04a
--- /dev/null
+++ b/board/freescale/mx35pdk/Makefile
@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2008-2009 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= mx35pdk.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
+
+#########################################################################
diff --git a/board/freescale/mx35pdk/lowlevel_init.S b/board/freescale/mx35pdk/lowlevel_init.S
new file mode 100644
index 00000000000..9b0f1b52596
--- /dev/null
+++ b/board/freescale/mx35pdk/lowlevel_init.S
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+ *
+ * (C) Copyright 2008-2010 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 <config.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/asm-offsets.h>
+#include "mx35pdk.h"
+
+/*
+ * return soc version
+ * 	0x10:  TO1
+ *	0x20:  TO2
+ *	0x30:  TO3
+ */
+.macro check_soc_version ret, tmp
+	ldr \tmp, =IIM_BASE_ADDR
+	ldr \ret, [\tmp, #IIM_SREV]
+	cmp \ret, #0x00
+	moveq \tmp, #ROMPATCH_REV
+	ldreq \ret, [\tmp]
+	moveq \ret, \ret, lsl #4
+	addne \ret, \ret, #0x10
+.endm
+
+/*
+ * AIPS setup - Only setup MPROTx registers.
+ * The PACR default values are good.
+ */
+.macro init_aips
+	/*
+	 * Set all MPROTx to be non-bufferable, trusted for R/W,
+	 * not forced to user-mode.
+	 */
+	ldr r0, =AIPS1_BASE_ADDR
+	ldr r1, =AIPS_MPR_CONFIG
+	str r1, [r0, #0x00]
+	str r1, [r0, #0x04]
+	ldr r0, =AIPS2_BASE_ADDR
+	str r1, [r0, #0x00]
+	str r1, [r0, #0x04]
+
+	/*
+	 * Clear the on and off peripheral modules Supervisor Protect bit
+	 * for SDMA to access them. Did not change the AIPS control registers
+	 * (offset 0x20) access type
+	 */
+	ldr r0, =AIPS1_BASE_ADDR
+	ldr r1, =AIPS_OPACR_CONFIG
+	str r1, [r0, #0x40]
+	str r1, [r0, #0x44]
+	str r1, [r0, #0x48]
+	str r1, [r0, #0x4C]
+	str r1, [r0, #0x50]
+	ldr r0, =AIPS2_BASE_ADDR
+	str r1, [r0, #0x40]
+	str r1, [r0, #0x44]
+	str r1, [r0, #0x48]
+	str r1, [r0, #0x4C]
+	str r1, [r0, #0x50]
+.endm
+
+/* MAX (Multi-Layer AHB Crossbar Switch) setup */
+.macro init_max
+	ldr r0, =MAX_BASE_ADDR
+	/* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
+	ldr r1, =MAX_MPR_CONFIG
+	str r1, [r0, #0x000]        /* for S0 */
+	str r1, [r0, #0x100]        /* for S1 */
+	str r1, [r0, #0x200]        /* for S2 */
+	str r1, [r0, #0x300]        /* for S3 */
+	str r1, [r0, #0x400]        /* for S4 */
+	/* SGPCR - always park on last master */
+	ldr r1, =MAX_SGPCR_CONFIG
+	str r1, [r0, #0x010]        /* for S0 */
+	str r1, [r0, #0x110]        /* for S1 */
+	str r1, [r0, #0x210]        /* for S2 */
+	str r1, [r0, #0x310]        /* for S3 */
+	str r1, [r0, #0x410]        /* for S4 */
+	/* MGPCR - restore default values */
+	ldr r1, =MAX_MGPCR_CONFIG
+	str r1, [r0, #0x800]        /* for M0 */
+	str r1, [r0, #0x900]        /* for M1 */
+	str r1, [r0, #0xA00]        /* for M2 */
+	str r1, [r0, #0xB00]        /* for M3 */
+	str r1, [r0, #0xC00]        /* for M4 */
+	str r1, [r0, #0xD00]        /* for M5 */
+.endm
+
+/* M3IF setup */
+.macro init_m3if
+	/* Configure M3IF registers */
+	ldr r1, =M3IF_BASE_ADDR
+	/*
+	* M3IF Control Register (M3IFCTL)
+	* MRRP[0] = L2CC0 not on priority list (0 << 0)	= 0x00000000
+	* MRRP[1] = L2CC1 not on priority list (0 << 0)	= 0x00000000
+	* MRRP[2] = MBX not on priority list (0 << 0)	= 0x00000000
+	* MRRP[3] = MAX1 not on priority list (0 << 0)	= 0x00000000
+	* MRRP[4] = SDMA not on priority list (0 << 0)	= 0x00000000
+	* MRRP[5] = MPEG4 not on priority list (0 << 0)	= 0x00000000
+	* MRRP[6] = IPU1 on priority list (1 << 6)	= 0x00000040
+	* MRRP[7] = IPU2 not on priority list (0 << 0)	= 0x00000000
+	*						------------
+	*						  0x00000040
+	*/
+	ldr r0, =M3IF_CONFIG
+	str r0, [r1]  /* M3IF control reg */
+.endm
+
+/* CPLD on CS5 setup */
+.macro init_debug_board
+	ldr r0, =DBG_BASE_ADDR
+	ldr r1, =DBG_CSCR_U_CONFIG
+	str r1, [r0, #0x00]
+	ldr r1, =DBG_CSCR_L_CONFIG
+	str r1, [r0, #0x04]
+	ldr r1, =DBG_CSCR_A_CONFIG
+	str r1, [r0, #0x08]
+.endm
+
+/* clock setup */
+.macro init_clock
+	ldr r0, =CCM_BASE_ADDR
+
+	/* default CLKO to 1/32 of the ARM core*/
+	ldr r1, [r0, #CLKCTL_COSR]
+	bic r1, r1, #0x00000FF00
+	bic r1, r1, #0x0000000FF
+	mov r2, #0x00006C00
+	add r2, r2, #0x67
+	orr r1, r1, r2
+	str r1, [r0, #CLKCTL_COSR]
+
+	ldr r2, =CCM_CCMR_CONFIG
+	str r2, [r0, #CLKCTL_CCMR]
+
+	check_soc_version r1, r2
+	cmp r1, #CHIP_REV_2_0
+	ldrhs r3, =CCM_MPLL_532_HZ
+	bhs 1f
+	ldr r2, [r0, #CLKCTL_PDR0]
+	tst r2, #CLKMODE_CONSUMER
+	ldrne r3, =CCM_MPLL_532_HZ  /* consumer path*/
+	ldreq r3, =CCM_MPLL_399_HZ  /* auto path*/
+1:
+	str r3, [r0, #CLKCTL_MPCTL]
+
+	ldr r1, =CCM_PPLL_300_HZ
+	str r1, [r0, #CLKCTL_PPCTL]
+
+	ldr r1, =CCM_PDR0_CONFIG
+	bic r1, r1, #0x800000
+	str r1, [r0, #CLKCTL_PDR0]
+
+	ldr r1, [r0, #CLKCTL_CGR0]
+	orr r1, r1, #0x0C300000
+	str r1, [r0, #CLKCTL_CGR0]
+
+	ldr r1, [r0, #CLKCTL_CGR1]
+	orr r1, r1, #0x00000C00
+	orr r1, r1, #0x00000003
+	str r1, [r0, #CLKCTL_CGR1]
+.endm
+
+.macro setup_sdram
+	ldr r0, =ESDCTL_BASE_ADDR
+	mov r3, #0x2000
+	str r3, [r0, #0x0]
+	str r3, [r0, #0x8]
+
+	/*ip(r12) has used to save lr register in upper calling*/
+	mov fp, lr
+
+	mov r5, #0x00
+	mov r2, #0x00
+	mov r1, #CSD0_BASE_ADDR
+	bl setup_sdram_bank
+	cmp r3, #0x0
+	orreq r5, r5, #1
+	eorne r2, r2, #0x1
+	blne setup_sdram_bank
+
+	mov lr, fp
+
+1:
+	ldr r3, =ESDCTL_DELAY_LINE5
+	str r3, [r0, #0x30]
+.endm
+
+.globl lowlevel_init
+lowlevel_init:
+	mov r10, lr
+
+	mrc 15, 0, r1, c1, c0, 0
+
+	mrc 15, 0, r0, c1, c0, 1
+	orr r0, r0, #7
+	mcr 15, 0, r0, c1, c0, 1
+	orr r1, r1, #(1<<11)
+
+	/* Set unaligned access enable */
+	orr r1, r1, #(1<<22)
+
+	/* Set low int latency enable */
+	orr r1, r1, #(1<<21)
+
+	mcr 15, 0, r1, c1, c0, 0
+
+	mov r0, #0
+
+	/* Set branch prediction enable */
+	mcr 15, 0, r0, c15, c2, 4
+
+	mcr 15, 0, r0, c7, c7, 0        /* invalidate I cache and D cache */
+	mcr 15, 0, r0, c8, c7, 0        /* invalidate TLBs */
+	mcr 15, 0, r0, c7, c10, 4       /* Drain the write buffer */
+
+	/*
+	 * initializes very early AIPS
+	 * Then it also initializes Multi-Layer AHB Crossbar Switch,
+	 * M3IF
+	 * Also setup the Peripheral Port Remap register inside the core
+	 */
+	ldr r0, =0x40000015        /* start from AIPS 2GB region */
+	mcr p15, 0, r0, c15, c2, 4
+
+	init_aips
+
+	init_max
+
+	init_m3if
+
+	init_clock
+	init_debug_board
+
+	cmp pc, #PHYS_SDRAM_1
+	blo init_sdram_start
+	cmp pc, #(PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE)
+	blo skip_sdram_setup
+
+init_sdram_start:
+	/*init_sdram*/
+	setup_sdram
+
+skip_sdram_setup:
+	mov lr, r10
+	mov pc, lr
+
+
+/*
+ * r0: ESDCTL control base, r1: sdram slot base
+ * r2: DDR type(0:DDR2, 1:MDDR) r3, r4:working base
+ */
+setup_sdram_bank:
+	mov r3, #0xE
+	tst r2, #0x1
+	orreq r3, r3, #0x300 /*DDR2*/
+	str r3, [r0, #0x10]
+	bic r3, r3, #0x00A
+	str r3, [r0, #0x10]
+	beq 2f
+
+	mov r3, #0x20000
+1:      subs r3, r3, #1
+	bne 1b
+
+2:      tst r2, #0x1
+	ldreq r3, =ESDCTL_DDR2_CONFIG
+	ldrne r3, =ESDCTL_MDDR_CONFIG
+	cmp r1, #CSD1_BASE_ADDR
+	strlo r3, [r0, #0x4]
+	strhs r3, [r0, #0xC]
+
+	ldr r3, =ESDCTL_0x92220000
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+	mov r3, #0xDA
+	ldr r4, =ESDCTL_PRECHARGE
+	strb r3, [r1, r4]
+
+	tst r2, #0x1
+	bne skip_set_mode
+
+	cmp r1, #CSD1_BASE_ADDR
+	ldr r3, =ESDCTL_0xB2220000
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+	mov r3, #0xDA
+	ldr r4, =ESDCTL_DDR2_EMR2
+	strb r3, [r1, r4]
+	ldr r4, =ESDCTL_DDR2_EMR3
+	strb r3, [r1, r4]
+	ldr r4, =ESDCTL_DDR2_EN_DLL
+	strb r3, [r1, r4]
+	ldr r4, =ESDCTL_DDR2_RESET_DLL
+	strb r3, [r1, r4]
+
+	ldr r3, =ESDCTL_0x92220000
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+	mov r3, #0xDA
+	ldr r4, =ESDCTL_PRECHARGE
+	strb r3, [r1, r4]
+
+skip_set_mode:
+	cmp r1, #CSD1_BASE_ADDR
+	ldr r3, =ESDCTL_0xA2220000
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+	mov r3, #0xDA
+	strb r3, [r1]
+	strb r3, [r1]
+
+	ldr r3, =ESDCTL_0xB2220000
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+	tst r2, #0x1
+	ldreq r4, =ESDCTL_DDR2_MR
+	ldrne r4, =ESDCTL_MDDR_MR
+	mov r3, #0xDA
+	strb r3, [r1, r4]
+	ldreq r4, =ESDCTL_DDR2_OCD_DEFAULT
+	streqb r3, [r1, r4]
+	ldreq r4, =ESDCTL_DDR2_EN_DLL
+	ldrne r4, =ESDCTL_MDDR_EMR
+	strb r3, [r1, r4]
+
+	cmp r1, #CSD1_BASE_ADDR
+	ldr r3, =ESDCTL_0x82228080
+	strlo r3, [r0, #0x0]
+	strhs r3, [r0, #0x8]
+
+	tst r2, #0x1
+	moveq r4, #0x20000
+	movne r4, #0x200
+1:      subs r4, r4, #1
+	bne 1b
+
+	str r3, [r1, #0x100]
+	ldr r4, [r1, #0x100]
+	cmp r3, r4
+	movne r3, #1
+	moveq r3, #0
+
+	mov pc, lr
diff --git a/board/freescale/mx35pdk/mx35pdk.c b/board/freescale/mx35pdk/mx35pdk.c
new file mode 100644
index 00000000000..da926e5781e
--- /dev/null
+++ b/board/freescale/mx35pdk/mx35pdk.c
@@ -0,0 +1,297 @@
+/*
+ * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+ *
+ * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx35_pins.h>
+#include <asm/arch/iomux.h>
+#include <i2c.h>
+#include <fsl_pmic.h>
+#include <mc9sdz60.h>
+#include <mc13892.h>
+#include <linux/types.h>
+#include <mxc_gpio.h>
+#include <asm/arch/sys_proto.h>
+#include <netdev.h>
+
+#ifndef BOARD_LATE_INIT
+#error "BOARD_LATE_INIT must be set for this board"
+#endif
+
+#ifndef CONFIG_BOARD_EARLY_INIT_F
+#error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
+#endif
+
+#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); })
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
+		PHYS_SDRAM_1_SIZE);
+
+	return 0;
+}
+
+static void setup_iomux_i2c(void)
+{
+	int pad;
+
+	/* setup pins for I2C1 */
+	mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION);
+	mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION);
+
+	pad = (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE \
+			| PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain);
+
+	mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, pad);
+	mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, pad);
+}
+
+
+static void setup_iomux_spi(void)
+{
+	mxc_request_iomux(MX35_PIN_CSPI1_MOSI, MUX_CONFIG_SION);
+	mxc_request_iomux(MX35_PIN_CSPI1_MISO, MUX_CONFIG_SION);
+	mxc_request_iomux(MX35_PIN_CSPI1_SS0, MUX_CONFIG_SION);
+	mxc_request_iomux(MX35_PIN_CSPI1_SS1, MUX_CONFIG_SION);
+	mxc_request_iomux(MX35_PIN_CSPI1_SCLK, MUX_CONFIG_SION);
+}
+
+static void setup_iomux_fec(void)
+{
+	int pad;
+
+	/* setup pins for FEC */
+	mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC);
+	mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC);
+
+	pad = (PAD_CTL_DRV_3_3V | PAD_CTL_PUE_PUD | PAD_CTL_ODE_CMOS | \
+			PAD_CTL_DRV_NORMAL | PAD_CTL_SRE_SLOW);
+
+	mxc_iomux_set_pad(MX35_PIN_FEC_TX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \
+			PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \
+			PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RX_DV, pad | PAD_CTL_HYS_SCHMITZ | \
+			 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_COL, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RDATA0, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TDATA0, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TX_EN, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_MDC, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_MDIO, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_22K_PU);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TX_ERR, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RX_ERR, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_CRS, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RDATA1, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TDATA1, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RDATA2, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TDATA2, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_RDATA3, pad | PAD_CTL_HYS_SCHMITZ | \
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD);
+	mxc_iomux_set_pad(MX35_PIN_FEC_TDATA3, pad | PAD_CTL_HYS_CMOS | \
+			  PAD_CTL_PKE_NONE | PAD_CTL_100K_PD);
+}
+
+int board_early_init_f(void)
+{
+	struct ccm_regs *ccm =
+		(struct ccm_regs *)IMX_CCM_BASE;
+
+	/* enable clocks */
+	writel(readl(&ccm->cgr0) |
+		MXC_CCM_CGR0_EMI_MASK |
+		MXC_CCM_CGR0_EDI0_MASK |
+		MXC_CCM_CGR0_EPIT1_MASK,
+		&ccm->cgr0);
+
+	writel(readl(&ccm->cgr1) |
+		MXC_CCM_CGR1_FEC_MASK |
+		MXC_CCM_CGR1_GPIO1_MASK |
+		MXC_CCM_CGR1_GPIO2_MASK |
+		MXC_CCM_CGR1_GPIO3_MASK |
+		MXC_CCM_CGR1_I2C1_MASK |
+		MXC_CCM_CGR1_I2C2_MASK |
+		MXC_CCM_CGR1_IPU_MASK,
+		&ccm->cgr1);
+
+	/* Setup NAND */
+	__raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
+
+	setup_iomux_i2c();
+	setup_iomux_fec();
+	setup_iomux_spi();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS;	/* board id for linux */
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+static inline int pmic_detect(void)
+{
+	int id;
+
+	id = pmic_reg_read(REG_IDENTIFICATION);
+
+	id = (id >> 6) & 0x7;
+	if (id == 0x7)
+		return 1;
+	return 0;
+}
+
+u32 get_board_rev(void)
+{
+	int rev;
+
+	rev = pmic_detect();
+
+	return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
+}
+
+int board_late_init(void)
+{
+	u8 val;
+	u32 pmic_val;
+
+	if (pmic_detect()) {
+		mxc_request_iomux(MX35_PIN_WATCHDOG_RST, MUX_CONFIG_SION |
+					MUX_CONFIG_ALT1);
+
+		pmic_val = pmic_reg_read(REG_SETTING_0);
+		pmic_reg_write(REG_SETTING_0, pmic_val | VO_1_30V | VO_1_50V);
+		pmic_val = pmic_reg_read(REG_MODE_0);
+		pmic_reg_write(REG_MODE_0, pmic_val | VGEN3EN);
+
+		mxc_request_iomux(MX35_PIN_COMPARE, MUX_CONFIG_GPIO);
+		mxc_iomux_set_input(MUX_IN_GPIO1_IN_5, INPUT_CTL_PATH0);
+
+		mxc_gpio_direction(37, MXC_GPIO_DIRECTION_OUT);
+		mxc_gpio_set(37, 1);
+	}
+
+	val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04;
+	mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val);
+	mdelay(200);
+
+	val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F;
+	mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
+	mdelay(200);
+
+	val |= 0x80;
+	mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	struct ccm_regs *ccm =
+		(struct ccm_regs *)IMX_CCM_BASE;
+	u32 cpu_rev = get_cpu_rev();
+
+	/*
+	 * Be sure that I2C is initialized to check
+	 * the board revision
+	 */
+	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+	/* Print board revision */
+	printf("Board: MX35 PDK %d.0 ", ((get_board_rev() >> 8) + 1) & 0x0F);
+
+	/* Print CPU revision */
+	printf("i.MX35 %d.%d [", (cpu_rev & 0xF0) >> 4, cpu_rev & 0x0F);
+
+	switch (readl(&ccm->rcsr) & 0x0F) {
+	case 0x0000:
+		puts("POR");
+		break;
+	case 0x0002:
+		puts("JTAG");
+		break;
+	case 0x0004:
+		puts("RST");
+		break;
+	case 0x0008:
+		puts("WDT");
+		break;
+	default:
+		puts("unknown");
+	}
+	puts("]\n");
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = -ENODEV;
+#if defined(CONFIG_SMC911X)
+	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+
+	cpu_eth_init(bis);
+
+	return rc;
+}
diff --git a/board/freescale/mx35pdk/mx35pdk.h b/board/freescale/mx35pdk/mx35pdk.h
new file mode 100644
index 00000000000..409aeb2289f
--- /dev/null
+++ b/board/freescale/mx35pdk/mx35pdk.h
@@ -0,0 +1,101 @@
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * 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 __BOARD_MX35_3STACK_H
+#define __BOARD_MX35_3STACK_H
+
+#define AIPS_MPR_CONFIG		0x77777777
+#define AIPS_OPACR_CONFIG	0x00000000
+
+/* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
+#define MAX_MPR_CONFIG		0x00302154
+/* SGPCR - always park on last master */
+#define MAX_SGPCR_CONFIG	0x00000010
+/* MGPCR - restore default values */
+#define MAX_MGPCR_CONFIG	0x00000000
+
+/*
+ * M3IF Control Register (M3IFCTL)
+ * MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
+ * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
+ * MRRP[2] = MBX not on priority list (0 << 0)   = 0x00000000
+ * MRRP[3] = MAX1 not on priority list (0 << 0)  = 0x00000000
+ * MRRP[4] = SDMA not on priority list (0 << 0)  = 0x00000000
+ * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
+ * MRRP[6] = IPU1 on priority list (1 << 6)      = 0x00000040
+ * MRRP[7] = IPU2 not on priority list (0 << 0)  = 0x00000000
+ *                                               ------------
+ *                                                 0x00000040
+ */
+#define M3IF_CONFIG	0x00000040
+
+#define DBG_BASE_ADDR		WEIM_CTRL_CS5
+#define DBG_CSCR_U_CONFIG	0x0000D843
+#define DBG_CSCR_L_CONFIG	0x22252521
+#define DBG_CSCR_A_CONFIG	0x22220A00
+
+#define CCM_CCMR_CONFIG		0x003F4208
+#define CCM_PDR0_CONFIG		0x00801000
+
+#define PLL_BRM_OFFSET	31
+#define PLL_PD_OFFSET	26
+#define PLL_MFD_OFFSET	16
+#define PLL_MFI_OFFSET	10
+
+#define _PLL_BRM(x)	((x) << PLL_BRM_OFFSET)
+#define _PLL_PD(x)	(((x) - 1) << PLL_PD_OFFSET)
+#define _PLL_MFD(x)	(((x) - 1) << PLL_MFD_OFFSET)
+#define _PLL_MFI(x)	((x) << PLL_MFI_OFFSET)
+#define _PLL_MFN(x)	(x)
+#define _PLL_SETTING(brm, pd, mfd, mfi, mfn) \
+	(_PLL_BRM(brm) | _PLL_PD(pd) | _PLL_MFD(mfd) | _PLL_MFI(mfi) |\
+	 _PLL_MFN(mfn))
+
+#define CCM_MPLL_532_HZ	_PLL_SETTING(1, 1, 12, 11, 1)
+#define CCM_MPLL_399_HZ _PLL_SETTING(0, 1, 16, 8, 5)
+#define CCM_PPLL_300_HZ _PLL_SETTING(0, 1, 4, 6, 1)
+
+/* MEMORY SETTING */
+#define ESDCTL_0x92220000	0x92220000
+#define ESDCTL_0xA2220000	0xA2220000
+#define ESDCTL_0xB2220000	0xB2220000
+#define ESDCTL_0x82228080	0x82228080
+
+#define ESDCTL_PRECHARGE	0x00000400
+
+#define ESDCTL_MDDR_CONFIG	0x007FFC3F
+#define ESDCTL_MDDR_MR		0x00000033
+#define ESDCTL_MDDR_EMR		0x02000000
+
+#define ESDCTL_DDR2_CONFIG	0x007FFC3F
+#define ESDCTL_DDR2_EMR2	0x04000000
+#define ESDCTL_DDR2_EMR3	0x06000000
+#define ESDCTL_DDR2_EN_DLL	0x02000400
+#define ESDCTL_DDR2_RESET_DLL	0x00000333
+#define ESDCTL_DDR2_MR		0x00000233
+#define ESDCTL_DDR2_OCD_DEFAULT 0x02000780
+
+#define ESDCTL_DELAY_LINE5	0x00F49F00
+#endif				/* __BOARD_MX35_3STACK_H */