avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/board/freescale/mx35pdk/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_MX35PDK
+
+config SYS_BOARD
+	default "mx35pdk"
+
+config SYS_VENDOR
+	default "freescale"
+
+config SYS_SOC
+	default "mx35"
+
+config SYS_CONFIG_NAME
+	default "mx35pdk"
+
+endif

u-boot/board/freescale/mx35pdk/MAINTAINERS

@@ -0,0 +1,6 @@
+MX35PDK BOARD
+M:	Stefano Babic <sbabic@denx.de>
+S:	Maintained
+F:	board/freescale/mx35pdk/
+F:	include/configs/mx35pdk.h
+F:	configs/mx35pdk_defconfig

u-boot/board/freescale/mx35pdk/Makefile

@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= mx35pdk.o
+obj-y	+= lowlevel_init.o

u-boot/board/freescale/mx35pdk/README

@@ -0,0 +1,114 @@
+Overview
+--------------
+
+mx35pdk (known als as mx35_3stack) is a development board by Freescale.
+It consists of three pluggable board:
+	- CPU module, with CPU, RAM, flash
+	- Personality board, with most interfaces (USB, Network,..)
+	- Debug board with JTAG header.
+
+The board is usually delivered with redboot. This howto explains how to boot
+a linux kernel and how to replace the original bootloader with U-Boot.
+
+The board is delivered with Redboot on the NAND flash. It is possible to
+switch the boot device with the switches SW1-SW2 on the Personality board,
+and with SW5-SW10 on the Debug board.
+
+Delivered Redboot script to start the kernel
+---------------------------------------------------
+
+In redboot the following script is stored:
+
+fis load kernel
+exec -c "noinitrd console=ttymxc0,115200 root=/dev/mtdblock8 rw rootfstype=jffs2 ip=dhcp fec_mac=00:04:9F:00:E7:76"
+
+Kernel is taken from flash. The image is in zImage format.
+
+Booting from NET, rootfs on NFS:
+-----------------------------------
+
+To change the script in redboot:
+
+load -r -b 0x100000 <path_to_zImage>
+exec -c "noinitrd console=ttymxc0,115200 root=/dev/nfsroot rootfstype=nfsroot nfsroot=192.168.1.1:/opt/eldk-4.2-arm/armVFP rw ip=dhcp"
+
+If the ip address is not set, you can set it with :
+
+ip_address -l <board_ip/netmask> -h <server_ip>
+
+Linux partitions:
+---------------------------
+
+As default, the board is shipped with these partition tables for NAND
+and for NOR:
+
+Creating 5 MTD partitions on "NAND 2GiB 3,3V 8-bit":
+0x00000000-0x00100000 : "nand.bootloader"
+0x00100000-0x00600000 : "nand.kernel"
+0x00600000-0x06600000 : "nand.rootfs"
+0x06600000-0x06e00000 : "nand.configure"
+0x06e00000-0x80000000 : "nand.userfs"
+
+Creating 6 MTD partitions on "mxc_nor_flash.0":
+0x00000000-0x00080000 : "Bootloader"
+0x00080000-0x00480000 : "nor.Kernel"
+0x00480000-0x02280000 : "nor.userfs"
+0x02280000-0x03e80000 : "nor.rootfs"
+0x01fe0000-0x01fe3000 : "FIS directory"
+0x01fff000-0x04000000 : "Redboot config"
+
+NAND partitions can be recognized enabling in kernel CONFIG_MTD_REDBOOT_PARTS.
+For this board, CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK should be set to 2.
+
+However, the setup in redboot is not correct and does not use the whole flash.
+
+Better solution is to use the kernel parameter mtdparts.
+Here the resulting script to be defined in RedBoot with fconfig:
+
+load -r -b 0x100000 sbabic/mx35pdk/zImage.2.6.37
+exec -c "noinitrd console=ttymxc0,115200 root=/dev/nfsroot rootfstype=nfsroot nfsroot=192.168.1.1:/opt/eldk-4.2-arm/arm rw ip=dhcp mtdparts=mxc_nand:1m(boot),5m(linux),96m(root),8m(cfg),1938m(user);physmap-flash.0:512k(b),4m(k),30m(u),28m(r)"
+
+Flashing U-Boot
+--------------------------------
+
+U-Boot should be stored on the NOR flash.
+
+The boot storage can be select using the switches on the personality board
+(SW1-SW2) and on the DEBUG board (SW4-SW10).
+
+If something goes wrong flashing the bootloader, it is always possible to
+recover the board booting from the other device.
+
+Saving U-Boot in the NOR flash
+---------------------------------
+
+Check the partition for boot in the NOR flash. Setting the mtdparts as reported,
+the boot partition should be /dev/mtd0.
+
+Creating 6 MTD partitions on "mxc_nor_flash.0":
+0x00000000-0x00080000 : "Bootloader"
+0x00080000-0x00480000 : "nor.Kernel"
+0x00480000-0x02280000 : "nor.userfs"
+0x02280000-0x03e80000 : "nor.rootfs"
+0x01fe0000-0x01fe3000 : "FIS directory"
+0x01fff000-0x04000000 : "Redboot config"
+
+To erase the whole partition:
+$ flash_eraseall /dev/mtd0
+
+Writing U-Boot:
+dd if=u-boot.bin of=/dev/mtd0
+
+To boot from NOR, you have to select the switches as follows:
+
+Personality board
+	SW2	all off
+	SW1	all off
+
+Debug Board:
+	SW5	0
+	SW6	0
+	SW7	0
+	SW8	1
+	SW9	1
+	SW10	0

u-boot/board/freescale/mx35pdk/lowlevel_init.S

@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+ *
+ * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <asm/arch/imx-regs.h>
+#include <generated/asm-offsets.h>
+#include "mx35pdk.h"
+#include <asm/arch/lowlevel_macro.S>
+
+/*
+ * 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
+
+/* 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]
+
+	ldr r1, [r0, #CLKCTL_CGR2]
+	orr r1, r1, #0x00C00000
+	str r1, [r0, #CLKCTL_CGR2]
+.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
+
+	mov r5, #0x00
+	mov r2, #0x00
+	mov r1, #CSD1_BASE_ADDR
+	bl 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
+
+	core_init
+
+	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

u-boot/board/freescale/mx35pdk/mx35pdk.c

@@ -0,0 +1,288 @@
+/*
+ * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+ *
+ * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#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/clock.h>
+#include <asm/arch/iomux-mx35.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <fsl_pmic.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <mc9sdz60.h>
+#include <mc13892.h>
+#include <linux/types.h>
+#include <asm/gpio.h>
+#include <asm/arch/sys_proto.h>
+#include <netdev.h>
+
+#ifndef CONFIG_BOARD_LATE_INIT
+#error "CONFIG_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
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	u32 size1, size2;
+
+	size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+	size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+
+	gd->ram_size = size1 + size2;
+
+	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;
+
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
+}
+
+#define I2C_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_ODE)
+
+static void setup_iomux_i2c(void)
+{
+	static const iomux_v3_cfg_t i2c1_pads[] = {
+		NEW_PAD_CTRL(MX35_PAD_I2C1_CLK__I2C1_SCL, I2C_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_I2C1_DAT__I2C1_SDA, I2C_PAD_CTRL),
+	};
+
+	/* setup pins for I2C1 */
+	imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
+}
+
+
+static void setup_iomux_spi(void)
+{
+	static const iomux_v3_cfg_t spi_pads[] = {
+		MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
+		MX35_PAD_CSPI1_MISO__CSPI1_MISO,
+		MX35_PAD_CSPI1_SS0__CSPI1_SS0,
+		MX35_PAD_CSPI1_SS1__CSPI1_SS1,
+		MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
+	};
+
+	imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
+}
+
+#define USBOTG_IN_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | \
+				 PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
+#define USBOTG_OUT_PAD_CTRL	(PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
+
+static void setup_iomux_usbotg(void)
+{
+	static const iomux_v3_cfg_t usbotg_pads[] = {
+		NEW_PAD_CTRL(MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
+				USBOTG_OUT_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
+				USBOTG_IN_PAD_CTRL),
+	};
+
+	/* Set up pins for USBOTG. */
+	imx_iomux_v3_setup_multiple_pads(usbotg_pads, ARRAY_SIZE(usbotg_pads));
+}
+
+#define FEC_PAD_CTRL	(PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
+
+static void setup_iomux_fec(void)
+{
+	static const iomux_v3_cfg_t fec_pads[] = {
+		NEW_PAD_CTRL(MX35_PAD_FEC_TX_CLK__FEC_TX_CLK, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RX_CLK__FEC_RX_CLK, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RX_DV__FEC_RX_DV, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_COL__FEC_COL, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RDATA0__FEC_RDATA_0, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TDATA0__FEC_TDATA_0, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TX_EN__FEC_TX_EN, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_MDC__FEC_MDC, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_MDIO__FEC_MDIO, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_22K_UP),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TX_ERR__FEC_TX_ERR, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RX_ERR__FEC_RX_ERR, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_CRS__FEC_CRS, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RDATA1__FEC_RDATA_1, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TDATA1__FEC_TDATA_1, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RDATA2__FEC_RDATA_2, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TDATA2__FEC_TDATA_2, FEC_PAD_CTRL),
+		NEW_PAD_CTRL(MX35_PAD_FEC_RDATA3__FEC_RDATA_3, FEC_PAD_CTRL |
+					PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
+		NEW_PAD_CTRL(MX35_PAD_FEC_TDATA3__FEC_TDATA_3, FEC_PAD_CTRL),
+	};
+
+	/* setup pins for FEC */
+	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
+}
+
+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_EDIO_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_usbotg();
+	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)
+{
+	unsigned int id;
+	struct pmic *p = pmic_get("FSL_PMIC");
+	if (!p)
+		return -ENODEV;
+
+	pmic_reg_read(p, REG_IDENTIFICATION, &id);
+
+	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;
+	struct pmic *p;
+	int ret;
+
+	ret = pmic_init(I2C_0);
+	if (ret)
+		return ret;
+
+	if (pmic_detect()) {
+		p = pmic_get("FSL_PMIC");
+		imx_iomux_v3_setup_pad(MX35_PAD_WDOG_RST__WDOG_WDOG_B);
+
+		pmic_reg_read(p, REG_SETTING_0, &pmic_val);
+		pmic_reg_write(p, REG_SETTING_0,
+			pmic_val | VO_1_30V | VO_1_50V);
+		pmic_reg_read(p, REG_MODE_0, &pmic_val);
+		pmic_reg_write(p, REG_MODE_0, pmic_val | VGEN3EN);
+
+		imx_iomux_v3_setup_pad(MX35_PAD_COMPARE__GPIO1_5);
+
+		gpio_direction_output(IMX_GPIO_NR(1, 5), 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);
+
+	/* Print board revision */
+	printf("Board: MX35 PDK %d.0\n", ((get_board_rev() >> 8) + 1) & 0x0F);
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+#if defined(CONFIG_SMC911X)
+	int rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+	if (rc)
+		return rc;
+#endif
+	return cpu_eth_init(bis);
+}
+
+#if defined(CONFIG_FSL_ESDHC)
+
+struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
+
+int board_mmc_init(bd_t *bis)
+{
+	static const iomux_v3_cfg_t sdhc1_pads[] = {
+		MX35_PAD_SD1_CMD__ESDHC1_CMD,
+		MX35_PAD_SD1_CLK__ESDHC1_CLK,
+		MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
+		MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
+		MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
+		MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
+	};
+
+	/* configure pins for SDHC1 only */
+	imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
+
+	esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
+	return fsl_esdhc_initialize(bis, &esdhc_cfg);
+}
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return !(mc9sdz60_reg_read(MC9SDZ60_REG_DES_FLAG) & 0x4);
+}
+#endif

u-boot/board/freescale/mx35pdk/mx35pdk.h

@@ -0,0 +1,42 @@
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __BOARD_MX35_3STACK_H
+#define __BOARD_MX35_3STACK_H
+
+#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
+
+/* 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 */