Patchwork [U-Boot,v2,2/3] apf27: add support for the armadeus APF27 board

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Submitter trem
Date Dec. 1, 2012, 10:44 a.m.
Message ID <1354358693-28737-3-git-send-email-tremyfr@yahoo.fr>
Download mbox | patch
Permalink /patch/203117/
State Changes Requested
Delegated to: Stefano Babic
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Comments

trem - Dec. 1, 2012, 10:44 a.m.
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
Signed-off-by: Nicolas Colombain <nicolas.colombain@armadeus.com>
---
 MAINTAINERS                         |    5 +
 board/armadeus/apf27/Makefile       |   48 +++
 board/armadeus/apf27/apf27.c        |  347 ++++++++++++++++++++++
 board/armadeus/apf27/apf27.h        |  477 +++++++++++++++++++++++++++++++
 board/armadeus/apf27/start.S        |  538 +++++++++++++++++++++++++++++++++++
 board/armadeus/apf27/u-boot-spl.lds |   86 ++++++
 boards.cfg                          |    1 +
 include/configs/apf27.h             |  445 +++++++++++++++++++++++++++++
 8 files changed, 1947 insertions(+), 0 deletions(-)
 create mode 100644 board/armadeus/apf27/Makefile
 create mode 100644 board/armadeus/apf27/apf27.c
 create mode 100644 board/armadeus/apf27/apf27.h
 create mode 100644 board/armadeus/apf27/start.S
 create mode 100644 board/armadeus/apf27/u-boot-spl.lds
 create mode 100644 include/configs/apf27.h
Stefano Babic - Dec. 7, 2012, 3:25 p.m.
On 01/12/2012 11:44, Philippe Reynes wrote:
> Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
> Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
> Signed-off-by: Nicolas Colombain <nicolas.colombain@armadeus.com>
> ---
>  MAINTAINERS                         |    5 +
>  board/armadeus/apf27/Makefile       |   48 +++
>  board/armadeus/apf27/apf27.c        |  347 ++++++++++++++++++++++
>  board/armadeus/apf27/apf27.h        |  477 +++++++++++++++++++++++++++++++
>  board/armadeus/apf27/start.S        |  538 +++++++++++++++++++++++++++++++++++
>  board/armadeus/apf27/u-boot-spl.lds |   86 ++++++
>  boards.cfg                          |    1 +
>  include/configs/apf27.h             |  445 +++++++++++++++++++++++++++++
>  8 files changed, 1947 insertions(+), 0 deletions(-)
>  create mode 100644 board/armadeus/apf27/Makefile
>  create mode 100644 board/armadeus/apf27/apf27.c
>  create mode 100644 board/armadeus/apf27/apf27.h
>  create mode 100644 board/armadeus/apf27/start.S
>  create mode 100644 board/armadeus/apf27/u-boot-spl.lds
>  create mode 100644 include/configs/apf27.h
> 

Hi Philippe,

I tried your patches, but build fails:

./MAKEALL apf27
Configuring for apf27 board...
make: *** [nand_spl] Error 2
arm-linux-gnueabi-size: './u-boot': No such file
make: *** nand_spl/board/armadeus/apf27: No such file or directory.  Stop.
make: *** [nand_spl] Error 2
make: *** Waiting for unfinished jobs....

Using the generic SPL, I am expecting that nand_spl is not used at all.
Objects and result should go into the SPL directory.

> +/*
> + * Fuse bank 1 row 8 is "reserved for future use" and therefore available for
> + * customer use. The APF27 board uses this fuse to store the board revision:
> + * 0: initial board revision
> + * 1: first revision - Presence of the second RAM chip on the board is blown in
> + *     fuse bank 1 row 9  bit 0 - No hardware change
> + * N: to be defined
> + */
> +u32 get_board_rev(void)
> +{
> +	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
> +
> +	return readl(&iim->bank[1].fuse_regs[8]);
> +}
> +
> +/*
> + * Fuse bank 1 row 9 is "reserved for future use" and therefore available for
> + * customer use. The APF27 board revision 1 uses the bit 0 to permanently store
> + * the presence of the second RAM chip
> + * 0: AFP27 with 1 RAM of 64 MiB
> + * 1: AFP27 with 2 RAM chips of 64 MiB each (128MB)
> + */
> +int get_num_ram_bank(void)

This should be declared static, I think.

> +int
> +dram_init(void)
> +{
> +	/* dram_init must store complete ramsize in gd->ram_size */
> +	if (get_num_ram_bank() > 1) {
> +		gd->ram_size = PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE
> +			+ get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
> +	} else {
> +		gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,
> +			PHYS_SDRAM_1_SIZE);
> +	}

Doesn't the following code work ?

	gd->ram_size =  get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +
	get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);

> +void dram_init_banksize(void)
> +{
> +	phys_size_t ramsize = gd->ram_size;
> +
> +	if (get_num_ram_bank() > 1)
> +		ramsize -= PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE;
> +
> +	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
> +	gd->bd->bi_dram[0].size = ramsize;
> +	gd->ram_size = gd->bd->bi_dram[0].size;
> +
> +	if (CONFIG_NR_DRAM_BANKS > 1) {

Do you need this ? It seems from your code that you can find at run time
how many banks are mounted.

> +/*
> + * Miscellaneous initialisation
> + */
> +int
> +misc_init_r(void)
> +{
> +	char *s;
> +	u_char * firmware_buffer = (u_char *)(CONFIG_SYS_LOAD_ADDR + \
> +					      CONFIG_SYS_MONITOR_LEN);
> +	size_t size	= 0;
> +	size_t offset	= -1;
> +	char *autoload = getenv("firmware_autoload");

you search for the environment, but autoload is not used in this
function, right ?

> +	u8 pnum;
> +	struct mtd_device *dev;
> +	struct part_info *part;
> +
> +	/* detect compatibility issue of environment version */
> +	s = getenv("env_version");
> +	if ((NULL == s) || (0 != strcmp(s, CONFIG_ENV_VERSION))) {

Not clear at all. You add a version to the environment, ok, but you
check it with a version number known at compile time. Do you use it really

> +		char * const vars[] = {"flash_reset_env"};
> +		printf("*** Warning - Environment version change suggests: "
> +			"run flash_reset_env; reset\n");
> +		set_default_vars(1, vars);
> +	}
> +
> +	/* Unlock whole flash but U-Boot */
> +	s = getenv("env_offset");
> +	offset = CONFIG_ENV_OFFSET;

This seems dangerous. You can set a variable, but the offset for the
environment is defined at compile time. This does not make a lot of
sense for me.


> +void enable_caches(void)
> +{
> +	/* Enable D-cache. I-cache is already enabled in start.S */
> +	dcache_enable();
> +}
> +

I suggest you move this function in a separate patch to
arch/arm/cpu/arm926ejs/mx27/generic.c. This code can be used by other
boards, too.


> +++ b/board/armadeus/apf27/apf27.h
> @@ -0,0 +1,477 @@
> +#ifndef __APF27_H
> +#define __APF27_H
> +
> +/* FPGA program pin configuration */
> +#define ACFG_FPGA_PWR	(GPIO_PORTF | 19)	/* FPGA prog pin  */
> +#define ACFG_FPGA_PRG	(GPIO_PORTF | 11)	/* FPGA prog pin  */
> +#define ACFG_FPGA_CLK	(GPIO_PORTF | 15)	/* FPGA clk pin   */
> +#define ACFG_FPGA_RDATA	0xD6000000		/* FPGA data addr  */
> +#define ACFG_FPGA_WDATA	0xD6000000		/* FPGA data addr  */
> +#define ACFG_FPGA_INIT	(GPIO_PORTF | 12)	/* FPGA init pin  */
> +#define ACFG_FPGA_DONE	(GPIO_PORTF | 9)	/* FPGA done pin  */
> +#define ACFG_FPGA_RW	(GPIO_PORTF | 21)	/* FPGA done pin  */
> +#define ACFG_FPGA_CS	(GPIO_PORTF | 22)	/* FPGA done pin  */
> +#define ACFG_FPGA_SUSPEND (GPIO_PORTF | 10)	/* FPGA done pin  */
> +#define ACFG_FPGA_RESET	(GPIO_PORTF | 7)	/* FPGA done pin  */
> +
> +/* MPU CLOCK source before PLL  */
> +/* ACFG_CLK_FREQ (2/3 MPLL clock or ext 266 MHZ) */

Style, wrong multiline comment.

> +#ifndef CONFIG_MX27_CLK26
> +#if (CONFIG_MX27_CLK32 == 32000)
> +#define ACFG_MPCTL0_VAL		0x00211803	/* 398.998 MHz */
> +#define ACFG_MPCTL1_VAL		0
> +#define CONFIG_MPLL_FREQ	399
> +#else /* CONFIG_MX27_CLK32 == 32768*/
> +#define ACFG_MPCTL0_VAL		0x01EF15D5	/* 399.000 MHz */
> +#define ACFG_MPCTL1_VAL		0
> +#define CONFIG_MPLL_FREQ	399
> +#endif /* CONFIG_MX27_CLK32 */
> +#else /* CONFIG_MX27_CLK26 in use*/
> +#define ACFG_MPCTL0_VAL		0x00331C23	/* 399.000 MHz */
> +#define ACFG_MPCTL1_VAL		0
> +#define CONFIG_MPLL_FREQ	399
> +#endif /* CONFIG_MX27_CLK26 */

Is it old code ? CONFIG_MX27_CLK26 is not used at all in u-boot, and you
do not define it. If we can get rid of it, please then clean up also the
other parts using #ifndef CONFIG_MX27_CLK26

> +
> +/* ARM bus frequency (have to be a CONFIG_MPLL_FREQ ratio) */
> +#define CONFIG_ARM_FREQ		399	/* up to 400 MHz */
> +
> +/* external bus frequency (have to be a ACFG_CLK_FREQ ratio) */
> +#define CONFIG_HCLK_FREQ	133	/* (ACFG_CLK_FREQ/2) */
> +
> +#define CONFIG_PERIF1_FREQ	16	/* 16.625 MHz UART, GPT, PWM*/
> +#define CONFIG_PERIF2_FREQ	33	/* 33.25 MHz CSPI and SDHC */
> +#define CONFIG_PERIF3_FREQ	33	/* 33.25 MHz LCD*/
> +#define CONFIG_PERIF4_FREQ	33	/* 33.25 MHz CSI*/
> +#define CONFIG_SSI1_FREQ	66	/* 66.50 MHz SSI1*/
> +#define CONFIG_SSI2_FREQ	66	/* 66.50 MHz SSI2*/
> +#define CONFIG_MSHC_FREQ	66	/* 66.50 MHz MSHC*/
> +#define CONFIG_H264_FREQ	66	/* 66.50 MHz H264*/
> +#define CONFIG_CLK0_DIV      3  /* Divide CLK0 by 4 */
> +#define CONFIG_CLK0_EN       1  /* CLK0 enabled */
> +
> +/* external bus frequency (have to be a CONFIG_HCLK_FREQ ratio) */
> +#define CONFIG_NFC_FREQ		44	/* NFC Clock up to 44 MHz wh 133MHz*/
> +
> +/* external serial bus frequency (have to be a CONFIG_SPLL_FREQ ratio) */
> +#define CONFIG_USB_FREQ		60	/* 60 MHz */
> +
> +/*
> + * SDRAM
> + */
> +#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
> +/* micron 64MB */
> +#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
> +						      column address bits */
> +#define ACFG_SDRAM_NUM_ROW		13 /* 11, 12 or 13
> +						      row address bits */
> +#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
> +						      2=4096 3=8192 refresh */
> +#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
> +						      down delay */
> +#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
> +						      cycle delay > 0 */
> +#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
> +#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
> +						      cycle delay 1..4 */
> +#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
> +						      SDRAM: 0=1ck 1=2ck*/
> +#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
> +						      delay */
> +#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
> +						      delay */
> +#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
> +#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
> +						      refresh to command) */
> +#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
> +						     estimated fo CL=1
> +						     0=force 3 for lpddr */
> +#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
> +						      3=Eighth 4=Sixteenth */
> +#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
> +						      2=quater 3=Eighth */
> +#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
> +#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
> +						      0 = Burst mode */
> +#endif
> +
> +#if (ACFG_SDRAM_MBYTE_SYZE == 128)
> +/* micron 128MB */
> +#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
> +						      column address bits */
> +#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
> +						      row address bits */
> +#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
> +						      2=4096 3=8192 refresh */
> +#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
> +						      down delay */
> +#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
> +						      cycle delay > 0 */
> +#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
> +#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
> +						      cycle delay 1..4 */
> +#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
> +						      SDRAM: 0=1ck 1=2ck*/
> +#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
> +						      delay */
> +#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
> +						      delay */
> +#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
> +#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
> +						      refresh to command)*/
> +#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
> +						     estimated fo CL=1
> +						     0=force 3 for lpddr*/
> +#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
> +						      3=Eighth 4=Sixteenth */
> +#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
> +						      2=quater 3=Eighth */
> +#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
> +#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
> +						      0 = Burst mode */
> +#endif
> +
> +#if (ACFG_SDRAM_MBYTE_SYZE == 256)
> +/* micron 256MB */
> +#define ACFG_SDRAM_NUM_COL		10  /* 8, 9, 10 or 11
> +						       column address bits */
> +#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
> +						      row address bits */
> +#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
> +						      2=4096 3=8192 refresh */
> +#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
> +						      down delay */
> +#define ACFG_SDRAM_W2R_DELAY		1  /* write to read cycle
> +						      delay > 0 */
> +#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
> +#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
> +						      cycle delay 1..4 */
> +#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
> +						      SDRAM: 0=1ck 1=2ck */
> +#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
> +						      delay */
> +#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
> +						      delay */
> +#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
> +#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
> +						      refresh to command) */
> +#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
> +						     estimated fo CL=1
> +						     0=force 3 for lpddr */
> +#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
> +						      3=Eighth 4=Sixteenth */
> +#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength
> +						      1=half
> +						      2=quater
> +						      3=Eighth */
> +#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
> +#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
> +						      0 = Burst mode */
> +#endif

I understand why, but maybe it is more readable if you define a table in
apf27.c and you access to it on depend of the selected RAM. Something like:
	struct ram_timing {
		.....
	}

	struct ram_timing apf27_ram[] = {
		{... }, /* 64 MB */
		{...},	/* 128 MB */
		{...}	/* 256 MB */
	}

What do you think about ?

> +/*
> + * Default configuration for GPIOs and peripherals
> + */
> +#ifndef ACFG_APF27_CUSTOM
> +#define ACFG_DDIR_A_VAL		0x00000000
> +#define ACFG_OCR1_A_VAL		0x00000000
> +#define ACFG_OCR2_A_VAL		0x00000000
> +#define ACFG_ICFA1_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_A_VAL		0xFFFFFFFF
> +#define ACFG_DR_A_VAL		0x00000000
> +#define ACFG_GIUS_A_VAL		0xFFFFFFFF
> +#define ACFG_ICR1_A_VAL		0x00000000
> +#define ACFG_ICR2_A_VAL		0x00000000
> +#define ACFG_IMR_A_VAL		0x00000000
> +#define ACFG_GPR_A_VAL		0x00000000
> +#define ACFG_PUEN_A_VAL		0xFFFFFFFF

I am unsure if I have understood. This seems the setup of the GPIOs
controller, and for that we have gpio_ function. Why do we need all this
stuff ?

> +/* Enforce DDR signal strengh & enable USB/PP/DMA burst override bits */
> +#define ACFG_GPCR_VAL		0x0003000F
> +
> +#define ACFG_ESDMISC_VAL		ESDMISC_LHD+ESDMISC_MDDREN
> +
> +/* FMCR select num LPDDR RAMs and nand 16bits, 2KB pages */
> +#if (CONFIG_NR_DRAM_BANKS == 1)
> +#define ACFG_FMCR_VAL 0xFFFFFFF9
> +#elif (CONFIG_NR_DRAM_BANKS == 2)
> +#define ACFG_FMCR_VAL 0xFFFFFFFB
> +#endif
> +
> +#ifndef ACFG_APF27_CUSTOM

..but ACFG_APF27_CUSTOM is not set at all - also old code and can we
clean up ?


> diff --git a/board/armadeus/apf27/start.S b/board/armadeus/apf27/start.S
> new file mode 100644
> index 0000000..05d5de0
> --- /dev/null
> +++ b/board/armadeus/apf27/start.S
> @@ -0,0 +1,538 @@
> +/*
> + *  IMX27 NAND Flash SPL (Secondary Program Loader)
> + *
> + *  Copyright (c) 2008  Armadeus Project / eja
> + *
> + *  Based on Freescale NAND SPL
> + *
> + *  Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
> + *  Copyright (c) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
> + *
> + * 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 <config.h>
> +#include <generated/asm-offsets.h>
> +#include <version.h>
> +#include <asm/macro.h>
> +#include <asm/arch/mxc_nand.h>
> +#include <asm/arch/imx-regs.h>
> +#include "apf27.h"
> +
> +/*
> + * Standard NAND flash commands
> + */
> +#define NAND_CMD_READ0		0
> +#define NAND_CMD_READ1		1
> +#define NAND_CMD_PAGEPROG	0x10
> +#define NAND_CMD_READOOB	0x50
> +#define NAND_CMD_ERASE1		0x60
> +#define NAND_CMD_STATUS		0x70
> +#define NAND_CMD_STATUS_MULTI	0x71
> +#define NAND_CMD_SEQIN		0x80
> +#define NAND_CMD_READID		0x90
> +#define NAND_CMD_ERASE2		0xd0
> +#define NAND_CMD_RESET		0xff
> +
> +/* Extended commands for large page devices */
> +#define NAND_CMD_READSTART	0x30
> +#define NAND_CMD_CACHEDPROG	0x15
> +
> +/* Status bits */
> +#define NAND_STATUS_FAIL	0x01
> +#define NAND_STATUS_FAIL_N1	0x02
> +#define NAND_STATUS_TRUE_READY	0x20
> +#define NAND_STATUS_READY	0x40
> +#define NAND_STATUS_WP		0x80
> +
> +	.macro nand_boot
> +
> +#ifdef CONFIG_BOOT_TRACE_REG
> +/*
> + * If CONFIG_BOOT_TRACE_REG is a SDRAM address then be sure to use the following
> + * 2 command after SDRAM init
> + */
> +
> +/* Backup state of previous boot to CONFIG_BOOT_TRACE_REG+4*/
> +#define BACKUP_TRACE()			\
> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
> +	ldr r3, [r4];			\
> +	str r3, [r4, #0x04];
> +
> +/* Save a state of boot at CONFIG_BOOT_TRACE_REG */
> +#define BOOT_TRACE(val)		\
> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
> +	ldr r3, =val;			\
> +	str r3, [r4];
> +#else
> +#define BACKUP_TRACE()
> +#define BOOT_TRACE(val)
> +#endif
> +
> +nand_boot_setup:
> +
> +	/* Copy SPL image from flash to SDRAM first */
> +	BOOT_TRACE(1)
> +	ldr r0, =IMX_NFC_MAIN_AREA0
> +	add r2, r0, #(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0) //2KB NFC Buff
> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
> +
> +	BOOT_TRACE(2)
> +1:	ldmia r0!, {r3-r10}
> +	stmia r1!, {r3-r10}
> +	cmp r0, r2
> +	blo 1b
> +

If SPL can link mxc_nand.c, you have all functions if you link also
nand_spl_simple.o and nand_spl_load.o. Why do we need to redefine them
in assembly ?

> +
> +
> +	/* Jump to SDRAM */
> +	BOOT_TRACE(3)
> +	ldr r1, =0x7FF
> +	and r0, pc, r1	 /* offset of pc */
> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
> +	add r1, r1, #0x10
> +	add pc, r0, r1

This is also done by generic SPL code.

> +.globl _start
> +_start:
> +
> +/*
> + *************************************************************************
> + *
> + * Startup Code (reset vector)
> + *
> + * do important init only if we don't start from memory!
> + * setup Memory and board specific bits prior to relocation.
> + * relocate armboot to ram
> + * setup stack
> + *
> + *************************************************************************
> + */
> +
> +
> +/*
> + * the actual reset code
> + */
> +
> +reset:
> +	/*
> +	 * set the cpu to SVC32 mode
> +	 */
> +	mrs	r0,cpsr
> +	bic	r0,r0,#0x1f
> +	orr	r0,r0,#0xd3
> +	msr	cpsr,r0
> +
> +	/*
> +	 * invalidate I/D cache/TLB and drain write buffer
> +	 */
> +	mov r0, #0
> +	mcr p15, 0, r0, c7, c7, 0	/* invalidate I cache and D cache */
> +	mcr p15, 0, r0, c8, c7, 0	/* invalidate TLBs */
> +	mcr p15, 0, r0, c7, c10, 4   /* Drain the write buffer */
> +
> +	/*
> +	 * disable MMU stuff and caches
> +	 */
> +	mrc p15, 0, r0, c1, c0, 0
> +	bic	r0, r0, #0x00002300	/* clear bits 13, 9:8 (--V- --RS) */
> +	bic	r0, r0, #0x00000087	/* clear bits 7, 2:0 (B--- -CAM) */
> +	orr	r0, r0, #0x00000002	/* set bit 2 (A) Align */
> +	orr	r0, r0, #0x00001000	/* set bit 12 (I) I-Cache */
> +	mcr p15, 0, r0, c1, c0, 0
> +

You also duplicate stuff that is in the generic
arch/arm/cpu/arm926ejs/start.S. Better, you substitute the generic one
with yours. But the generic has support to call SPL function, so why to
replace it ?


> +/*
> + * SPL
> + */
> +/* Copy SPL+U-Boot here	     */
> +#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_TEXT_BASE - 0x800)
> +/* Size is the partion size  */
> +#define CONFIG_SYS_NAND_U_BOOT_SIZE	CONFIG_SYS_MONITOR_LEN
> +/* Build image with spl and u-boot */
> +#define CONFIG_NAND_U_BOOT
> +#define CONFIG_SPL_PAD_TO		0xa1000000
> +
> +/*
> + * SPL
> + */
> +#define	CONFIG_SPL
> +#define	CONFIG_SPL_NO_CPU_SUPPORT_CODE

I have not understood why using CONFIG_SPL_FRAMEWORK does not work for
you. You should have availbale a lot of function that you redefine in
your patches.

Best regards,
Stefano Babic

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index e34d9f3..3ac0c92 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -696,6 +696,11 @@  Ilko Iliev <iliev@ronetix.at>
 	PM9263		AT91SAM9263
 	PM9G45		ARM926EJS (AT91SAM9G45 SoC)
 
+Eric Jarrige <eric.jarrige@armadeus.org>
+Philippe Reynes <tremyfr@yahoo.fr>
+
+	apf27		ARM926EJS (i.MX27 SoC)
+
 Michael Jones <michael.jones@matrix-vision.de>
 
 	omap3_mvblx	ARM ARMV7 (OMAP3xx SoC)
diff --git a/board/armadeus/apf27/Makefile b/board/armadeus/apf27/Makefile
new file mode 100644
index 0000000..f57f405
--- /dev/null
+++ b/board/armadeus/apf27/Makefile
@@ -0,0 +1,48 @@ 
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+# (C) Copyright 2012
+# Eric Jarrige <eric.jarrige@armadeus.org>
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+ifndef	CONFIG_SPL_BUILD
+COBJS	:= apf27.o
+endif
+
+SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+START	:= $(addprefix $(obj),$(START))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/armadeus/apf27/apf27.c b/board/armadeus/apf27/apf27.c
new file mode 100644
index 0000000..cbd09a7
--- /dev/null
+++ b/board/armadeus/apf27/apf27.c
@@ -0,0 +1,347 @@ 
+/*
+ * Copyright (C) 2007 Sascha Hauer, Pengutronix
+ * Copyright (C) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
+ *
+ * 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 <environment.h>
+#include <jffs2/jffs2.h>
+#include <nand.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/gpio.h>
+#include <asm/errno.h>
+#include "apf27.h"
+#include "crc.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Fuse bank 1 row 8 is "reserved for future use" and therefore available for
+ * customer use. The APF27 board uses this fuse to store the board revision:
+ * 0: initial board revision
+ * 1: first revision - Presence of the second RAM chip on the board is blown in
+ *     fuse bank 1 row 9  bit 0 - No hardware change
+ * N: to be defined
+ */
+u32 get_board_rev(void)
+{
+	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
+
+	return readl(&iim->bank[1].fuse_regs[8]);
+}
+
+/*
+ * Fuse bank 1 row 9 is "reserved for future use" and therefore available for
+ * customer use. The APF27 board revision 1 uses the bit 0 to permanently store
+ * the presence of the second RAM chip
+ * 0: AFP27 with 1 RAM of 64 MiB
+ * 1: AFP27 with 2 RAM chips of 64 MiB each (128MB)
+ */
+int get_num_ram_bank(void)
+{
+	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
+	int nr_dram_banks = 1;
+
+	if ((get_board_rev() > 0) && (CONFIG_NR_DRAM_BANKS > 1))
+		nr_dram_banks += readl(&iim->bank[1].fuse_regs[9]) & 0x01;
+	else
+		nr_dram_banks = CONFIG_NR_DRAM_POPULATED;
+
+	return nr_dram_banks;
+}
+
+static void apf27_port_init(int port, u32 gpio_dr, u32 ocr1, u32 ocr2,
+			    u32 iconfa1, u32 iconfa2, u32 iconfb1, u32 iconfb2,
+			    u32 icr1, u32 icr2, u32 imr, u32 gpio_dir, u32 gpr,
+			    u32 puen, u32 gius)
+{
+	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
+
+	writel(gpio_dr,   &regs->port[port].gpio_dr);
+	writel(ocr1,      &regs->port[port].ocr1);
+	writel(ocr2,      &regs->port[port].ocr2);
+	writel(iconfa1,   &regs->port[port].iconfa1);
+	writel(iconfa2,   &regs->port[port].iconfa2);
+	writel(iconfb1,   &regs->port[port].iconfb1);
+	writel(iconfb2,   &regs->port[port].iconfb2);
+	writel(icr1,      &regs->port[port].icr1);
+	writel(icr2,      &regs->port[port].icr2);
+	writel(imr,       &regs->port[port].imr);
+	writel(gpio_dir,  &regs->port[port].gpio_dir);
+	writel(gpr,       &regs->port[port].gpr);
+	writel(puen,      &regs->port[port].puen);
+	writel(gius,      &regs->port[port].gius);
+}
+
+#define APF27_PORT_INIT(n) apf27_port_init(PORT##n, ACFG_DR_##n##_VAL,	  \
+	ACFG_OCR1_##n##_VAL, ACFG_OCR2_##n##_VAL, ACFG_ICFA1_##n##_VAL,	  \
+	ACFG_ICFA2_##n##_VAL, ACFG_ICFB1_##n##_VAL, ACFG_ICFB2_##n##_VAL, \
+	ACFG_ICR1_##n##_VAL, ACFG_ICR2_##n##_VAL, ACFG_IMR_##n##_VAL,	  \
+	ACFG_DDIR_##n##_VAL, ACFG_GPR_##n##_VAL, ACFG_PUEN_##n##_VAL,	  \
+	ACFG_GIUS_##n##_VAL)
+
+void apf27_gpio_init(void)
+{
+	APF27_PORT_INIT(A);
+	APF27_PORT_INIT(B);
+	APF27_PORT_INIT(C);
+	APF27_PORT_INIT(D);
+	APF27_PORT_INIT(E);
+	APF27_PORT_INIT(F);
+}
+
+static int apf27_devices_init(void)
+{
+	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
+	int i;
+	unsigned int mode[] = {
+		PD0_AIN_FEC_TXD0,
+		PD1_AIN_FEC_TXD1,
+		PD2_AIN_FEC_TXD2,
+		PD3_AIN_FEC_TXD3,
+		PD4_AOUT_FEC_RX_ER,
+		PD5_AOUT_FEC_RXD1,
+		PD6_AOUT_FEC_RXD2,
+		PD7_AOUT_FEC_RXD3,
+		PD8_AF_FEC_MDIO,
+		PD9_AIN_FEC_MDC | GPIO_PUEN,
+		PD10_AOUT_FEC_CRS,
+		PD11_AOUT_FEC_TX_CLK,
+		PD12_AOUT_FEC_RXD0,
+		PD13_AOUT_FEC_RX_DV,
+		PD14_AOUT_FEC_CLR,
+		PD15_AOUT_FEC_COL,
+		PD16_AIN_FEC_TX_ER,
+		PF23_AIN_FEC_TX_EN,
+		PE12_PF_UART1_TXD,
+		PE13_PF_UART1_RXD,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mode); i++)
+		imx_gpio_mode(mode[i]);
+
+#ifdef CONFIG_MXC_MMC
+	mx27_sd2_init_pins();
+	imx_gpio_mode((GPIO_PORTF | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 16));
+	writel(readl(&regs->port[PORTF].gpio_dr) | (1 << 16),
+				&regs->port[PORTF].gpio_dr);
+#endif
+	return 0;
+}
+
+static void board_setup_aipi(void)
+{
+	struct aipi_regs *aipi1 = (struct aipi_regs *)IMX_AIPI1_BASE;
+	struct aipi_regs *aipi2 = (struct aipi_regs *)IMX_AIPI2_BASE;
+	struct system_control_regs *system = \
+		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
+	u32 gpcr;
+
+	/* setup AIPI1 and AIPI2 */
+	writel(ACFG_AIPI1_PSR0_VAL, &aipi1->psr0);
+	writel(ACFG_AIPI1_PSR1_VAL, &aipi1->psr1);
+	writel(ACFG_AIPI2_PSR0_VAL, &aipi2->psr0);
+	writel(ACFG_AIPI2_PSR1_VAL, &aipi2->psr1);
+
+	/* Change SDRAM signal strengh */
+	gpcr = readl(&system->gpcr);
+	gpcr |= ACFG_GPCR_VAL;
+	writel(gpcr, &system->gpcr);
+}
+
+static void board_setup_csx(void)
+{
+	struct weim_regs *weim = (struct weim_regs *)IMX_WEIM_BASE;
+
+	writel(ACFG_CS0U_VAL, &weim->cs0u);
+	writel(ACFG_CS0L_VAL, &weim->cs0l);
+	writel(ACFG_CS0A_VAL, &weim->cs0a);
+
+	writel(ACFG_CS1U_VAL, &weim->cs1u);
+	writel(ACFG_CS1L_VAL, &weim->cs1l);
+	writel(ACFG_CS1A_VAL, &weim->cs1a);
+
+	writel(ACFG_CS2U_VAL, &weim->cs2u);
+	writel(ACFG_CS2L_VAL, &weim->cs2l);
+	writel(ACFG_CS2A_VAL, &weim->cs2a);
+
+	writel(ACFG_CS3U_VAL, &weim->cs3u);
+	writel(ACFG_CS3L_VAL, &weim->cs3l);
+	writel(ACFG_CS3A_VAL, &weim->cs3a);
+
+	writel(ACFG_CS4U_VAL, &weim->cs4u);
+	writel(ACFG_CS4L_VAL, &weim->cs4l);
+	writel(ACFG_CS4A_VAL, &weim->cs4a);
+
+	writel(ACFG_CS5U_VAL, &weim->cs5u);
+	writel(ACFG_CS5L_VAL, &weim->cs5l);
+	writel(ACFG_CS5A_VAL, &weim->cs5a);
+
+	writel(ACFG_EIM_VAL, &weim->eim);
+}
+
+static void board_setup_port(void)
+{
+	struct system_control_regs *system = \
+		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
+
+	writel(ACFG_FMCR_VAL, &system->fmcr);
+}
+
+static void board_setup_clock()
+{
+	struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+	volatile int wait = 0x1000;
+	u32 cscr;
+
+	/* disable MPLL/SPLL first */
+	cscr = readl(&pll->cscr);
+	cscr &= ~(CSCR_MPEN|CSCR_SPEN);
+	writel(cscr, &pll->cscr);
+
+	/* pll clock initialization */
+	writel(ACFG_MPCTL0_VAL, &pll->mpctl0);
+	writel(ACFG_SPCTL0_VAL, &pll->spctl0);
+
+	cscr = ACFG_CSCR_VAL|CSCR_MPLL_RESTART|CSCR_SPLL_RESTART;
+	writel(cscr, &pll->cscr);
+
+	/* add some delay here */
+	while (wait)
+		wait--;
+
+	/* peripheral clock divider */
+	writel(ACFG_PCDR0_VAL, &pll->pcdr0);
+	writel(ACFG_PCDR1_VAL, &pll->pcdr1);
+
+	/* Configure PCCR0 and PCCR1 */
+	writel(ACFG_PCCR0_VAL, &pll->pccr0);
+	writel(ACFG_PCCR1_VAL, &pll->pccr1);
+}
+
+int board_early_init_f(void)
+{
+	board_setup_aipi();
+	board_setup_csx();
+	board_setup_port();
+	board_setup_clock();
+
+	return 0;
+}
+
+int
+board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	apf27_gpio_init();
+	apf27_devices_init();
+
+	return 0;
+}
+
+int
+dram_init(void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	if (get_num_ram_bank() > 1) {
+		gd->ram_size = PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE
+			+ get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+	} else {
+		gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,
+			PHYS_SDRAM_1_SIZE);
+	}
+
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	phys_size_t ramsize = gd->ram_size;
+
+	if (get_num_ram_bank() > 1)
+		ramsize -= PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = ramsize;
+	gd->ram_size = gd->bd->bi_dram[0].size;
+
+	if (CONFIG_NR_DRAM_BANKS > 1) {
+		gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+		if (get_num_ram_bank() > 1)
+			gd->bd->bi_dram[1].size = ramsize;
+		else
+			gd->bd->bi_dram[1].size = 0;
+		gd->ram_size += gd->bd->bi_dram[1].size;
+	}
+}
+
+/*
+ * Miscellaneous initialisation
+ */
+int
+misc_init_r(void)
+{
+	char *s;
+	u_char * firmware_buffer = (u_char *)(CONFIG_SYS_LOAD_ADDR + \
+					      CONFIG_SYS_MONITOR_LEN);
+	size_t size	= 0;
+	size_t offset	= -1;
+	char *autoload = getenv("firmware_autoload");
+	u8 pnum;
+	struct mtd_device *dev;
+	struct part_info *part;
+
+	/* detect compatibility issue of environment version */
+	s = getenv("env_version");
+	if ((NULL == s) || (0 != strcmp(s, CONFIG_ENV_VERSION))) {
+		char * const vars[] = {"flash_reset_env"};
+		printf("*** Warning - Environment version change suggests: "
+			"run flash_reset_env; reset\n");
+		set_default_vars(1, vars);
+	}
+
+	/* Unlock whole flash but U-Boot */
+	s = getenv("env_offset");
+	offset = CONFIG_ENV_OFFSET;
+	if ((s != NULL) && (0 != strcmp(s, "0")))
+		offset = simple_strtoul(s, NULL, 16);
+
+	if (nand_unlock(&nand_info[0], offset, nand_info[0].size - offset, 0))
+		printf("NAND flash lock/unlocked failed\n");
+
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("Board: Armadeus APF27 revision %d\n", get_board_rev());
+	return 0;
+}
+
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+
+inline void lowlevel_init(void) {}
diff --git a/board/armadeus/apf27/apf27.h b/board/armadeus/apf27/apf27.h
new file mode 100644
index 0000000..bb007e8
--- /dev/null
+++ b/board/armadeus/apf27/apf27.h
@@ -0,0 +1,477 @@ 
+#ifndef __APF27_H
+#define __APF27_H
+
+/* FPGA program pin configuration */
+#define ACFG_FPGA_PWR	(GPIO_PORTF | 19)	/* FPGA prog pin  */
+#define ACFG_FPGA_PRG	(GPIO_PORTF | 11)	/* FPGA prog pin  */
+#define ACFG_FPGA_CLK	(GPIO_PORTF | 15)	/* FPGA clk pin   */
+#define ACFG_FPGA_RDATA	0xD6000000		/* FPGA data addr  */
+#define ACFG_FPGA_WDATA	0xD6000000		/* FPGA data addr  */
+#define ACFG_FPGA_INIT	(GPIO_PORTF | 12)	/* FPGA init pin  */
+#define ACFG_FPGA_DONE	(GPIO_PORTF | 9)	/* FPGA done pin  */
+#define ACFG_FPGA_RW	(GPIO_PORTF | 21)	/* FPGA done pin  */
+#define ACFG_FPGA_CS	(GPIO_PORTF | 22)	/* FPGA done pin  */
+#define ACFG_FPGA_SUSPEND (GPIO_PORTF | 10)	/* FPGA done pin  */
+#define ACFG_FPGA_RESET	(GPIO_PORTF | 7)	/* FPGA done pin  */
+
+/* MPU CLOCK source before PLL  */
+/* ACFG_CLK_FREQ (2/3 MPLL clock or ext 266 MHZ) */
+#ifndef CONFIG_MX27_CLK26
+#if (CONFIG_MX27_CLK32 == 32000)
+#define ACFG_MPCTL0_VAL		0x00211803	/* 398.998 MHz */
+#define ACFG_MPCTL1_VAL		0
+#define CONFIG_MPLL_FREQ	399
+#else /* CONFIG_MX27_CLK32 == 32768*/
+#define ACFG_MPCTL0_VAL		0x01EF15D5	/* 399.000 MHz */
+#define ACFG_MPCTL1_VAL		0
+#define CONFIG_MPLL_FREQ	399
+#endif /* CONFIG_MX27_CLK32 */
+#else /* CONFIG_MX27_CLK26 in use*/
+#define ACFG_MPCTL0_VAL		0x00331C23	/* 399.000 MHz */
+#define ACFG_MPCTL1_VAL		0
+#define CONFIG_MPLL_FREQ	399
+#endif /* CONFIG_MX27_CLK26 */
+
+#define ACFG_CLK_FREQ	(CONFIG_MPLL_FREQ*2/3) /* 266 MHz */
+
+/* Serial clock source before PLL (should be named ACFG_SYSPLL_CLK_FREQ)*/
+#ifndef CONFIG_MX27_CLK26
+#if (CONFIG_MX27_CLK32 == 32000)
+#define ACFG_SPCTL0_VAL		0x04A02419	/* 300.00020 MHz */
+#define ACFG_SPCTL1_VAL		0
+#define CONFIG_SPLL_FREQ	300		/* MHz */
+#else /* CONFIG_MX27_CLK32 == 32768*/
+#define ACFG_SPCTL0_VAL		0x0475206F	/* 299.99937 MHz */
+#define ACFG_SPCTL1_VAL		0
+#define CONFIG_SPLL_FREQ	300		/* MHz */
+#endif /* CONFIG_MX27_CLK32 */
+#else /* CONFIG_MX27_CLK26 in use*/
+#define ACFG_SPCTL0_VAL		0x040C2C07	/* 300 MHz */
+#define ACFG_SPCTL1_VAL		0x0
+#define CONFIG_SPLL_FREQ	300		/* MHz */
+#endif /* CONFIG_MX27_CLK26 */
+
+/* ARM bus frequency (have to be a CONFIG_MPLL_FREQ ratio) */
+#define CONFIG_ARM_FREQ		399	/* up to 400 MHz */
+
+/* external bus frequency (have to be a ACFG_CLK_FREQ ratio) */
+#define CONFIG_HCLK_FREQ	133	/* (ACFG_CLK_FREQ/2) */
+
+#define CONFIG_PERIF1_FREQ	16	/* 16.625 MHz UART, GPT, PWM*/
+#define CONFIG_PERIF2_FREQ	33	/* 33.25 MHz CSPI and SDHC */
+#define CONFIG_PERIF3_FREQ	33	/* 33.25 MHz LCD*/
+#define CONFIG_PERIF4_FREQ	33	/* 33.25 MHz CSI*/
+#define CONFIG_SSI1_FREQ	66	/* 66.50 MHz SSI1*/
+#define CONFIG_SSI2_FREQ	66	/* 66.50 MHz SSI2*/
+#define CONFIG_MSHC_FREQ	66	/* 66.50 MHz MSHC*/
+#define CONFIG_H264_FREQ	66	/* 66.50 MHz H264*/
+#define CONFIG_CLK0_DIV      3  /* Divide CLK0 by 4 */
+#define CONFIG_CLK0_EN       1  /* CLK0 enabled */
+
+/* external bus frequency (have to be a CONFIG_HCLK_FREQ ratio) */
+#define CONFIG_NFC_FREQ		44	/* NFC Clock up to 44 MHz wh 133MHz*/
+
+/* external serial bus frequency (have to be a CONFIG_SPLL_FREQ ratio) */
+#define CONFIG_USB_FREQ		60	/* 60 MHz */
+
+/*
+ * SDRAM
+ */
+#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
+/* micron 64MB */
+#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
+						      column address bits */
+#define ACFG_SDRAM_NUM_ROW		13 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
+						      cycle delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck*/
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command) */
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr */
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
+						      2=quater 3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 128)
+/* micron 128MB */
+#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
+						      column address bits */
+#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
+						      cycle delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck*/
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command)*/
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr*/
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
+						      2=quater 3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 256)
+/* micron 256MB */
+#define ACFG_SDRAM_NUM_COL		10  /* 8, 9, 10 or 11
+						       column address bits */
+#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read cycle
+						      delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck */
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command) */
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr */
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength
+						      1=half
+						      2=quater
+						      3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+/*
+ * External interface
+ */
+/*
+ * CSCRxU_VAL:
+ * 31| x | x | x x |x x x x| x x | x | x  |x x x x|16
+ *   |SP |WP | BCD |  BCS  | PSZ |PME|SYNC|  DOL  |
+ *
+ * 15| x x  | x x x x x x | x | x x x x | x x x x |0
+ *   | CNC  |     WSC     |EW |   WWS   |   EDC   |
+ *
+ * CSCRxL_VAL:
+ * 31|  x x x x  | x x x x  | x x x x  | x x x x  |16
+ *   |    OEA    |   OEN    |   EBWA   |   EBWN   |
+ * 15|x x x x| x |x x x |x x x x| x | x | x  | x  | 0
+ *   |  CSA  |EBC| DSZ  |  CSN  |PSR|CRE|WRAP|CSEN|
+ *
+ * CSCRxA_VAL:
+ * 31|  x x x x  | x x x x  | x x x x  | x x x x  |16
+ *   |   EBRA    |   EBRN   |   RWA    |   RWN    |
+ * 15| x | x x |x x x|x x|x x|x x| x | x | x  | x | 0
+ *   |MUM| LAH | LBN |LBA|DWW|DCT|WWU|AGE|CNC2|FCE|
+ */
+
+/* CS0 configuration for 16 bit nor flash */
+#define ACFG_CS0U_VAL	0x0000CC03
+#define ACFG_CS0L_VAL	0xa0330D01
+#define ACFG_CS0A_VAL	0x00220800
+
+#define ACFG_CS1U_VAL	0x00000f00
+#define ACFG_CS1L_VAL	0x00000D01
+#define ACFG_CS1A_VAL	0
+
+#define ACFG_CS2U_VAL	0
+#define ACFG_CS2L_VAL	0
+#define ACFG_CS2A_VAL	0
+
+#define ACFG_CS3U_VAL	0
+#define ACFG_CS3L_VAL	0
+#define ACFG_CS3A_VAL	0
+
+#define ACFG_CS4U_VAL	0
+#define ACFG_CS4L_VAL	0
+#define ACFG_CS4A_VAL	0
+
+/* FPGA 16 bit data bus */
+#define ACFG_CS5U_VAL	0x00000600
+#define ACFG_CS5L_VAL	0x00000D01
+#define ACFG_CS5A_VAL	0
+
+#define ACFG_EIM_VAL	0x00002200
+
+/* FPGA specific settings */
+/* CLKO */
+#define ACFG_CCSR_VAL 0x00000305
+/* drive strength CLKO set to 2*/
+#define ACFG_DSCR10_VAL 0x00020000
+/* drive strength A1..A12 set to 2*/
+#define ACFG_DSCR3_VAL 0x02AAAAA8
+/* drive strength ctrl*/
+#define ACFG_DSCR7_VAL 0x00020880
+/* drive strength data*/
+#define ACFG_DSCR2_VAL 0xAAAAAAAA
+
+
+/*
+ * Default configuration for GPIOs and peripherals
+ */
+#ifndef ACFG_APF27_CUSTOM
+#define ACFG_DDIR_A_VAL		0x00000000
+#define ACFG_OCR1_A_VAL		0x00000000
+#define ACFG_OCR2_A_VAL		0x00000000
+#define ACFG_ICFA1_A_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_A_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_A_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_A_VAL		0xFFFFFFFF
+#define ACFG_DR_A_VAL		0x00000000
+#define ACFG_GIUS_A_VAL		0xFFFFFFFF
+#define ACFG_ICR1_A_VAL		0x00000000
+#define ACFG_ICR2_A_VAL		0x00000000
+#define ACFG_IMR_A_VAL		0x00000000
+#define ACFG_GPR_A_VAL		0x00000000
+#define ACFG_PUEN_A_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_B_VAL		0x00000000
+#define ACFG_OCR1_B_VAL		0x00000000
+#define ACFG_OCR2_B_VAL		0x00000000
+#define ACFG_ICFA1_B_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_B_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_B_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_B_VAL		0xFFFFFFFF
+#define ACFG_DR_B_VAL		0x00000000
+#define ACFG_GIUS_B_VAL		0xFF3FFFF0
+#define ACFG_ICR1_B_VAL		0x00000000
+#define ACFG_ICR2_B_VAL		0x00000000
+#define ACFG_IMR_B_VAL		0x00000000
+#define ACFG_GPR_B_VAL		0x00000000
+#define ACFG_PUEN_B_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_C_VAL		0x00000000
+#define ACFG_OCR1_C_VAL		0x00000000
+#define ACFG_OCR2_C_VAL		0x00000000
+#define ACFG_ICFA1_C_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_C_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_C_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_C_VAL		0xFFFFFFFF
+#define ACFG_DR_C_VAL		0x00000000
+#define ACFG_GIUS_C_VAL		0xFFFFC07F
+#define ACFG_ICR1_C_VAL		0x00000000
+#define ACFG_ICR2_C_VAL		0x00000000
+#define ACFG_IMR_C_VAL		0x00000000
+#define ACFG_GPR_C_VAL		0x00000000
+#define ACFG_PUEN_C_VAL		0xFFFFFF87
+
+#define ACFG_DDIR_D_VAL		0x00000000
+#define ACFG_OCR1_D_VAL		0x00000000
+#define ACFG_OCR2_D_VAL		0x00000000
+#define ACFG_ICFA1_D_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_D_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_D_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_D_VAL		0xFFFFFFFF
+#define ACFG_DR_D_VAL		0x00000000
+#define ACFG_GIUS_D_VAL		0xFFFFFFFF
+#define ACFG_ICR1_D_VAL		0x00000000
+#define ACFG_ICR2_D_VAL		0x00000000
+#define ACFG_IMR_D_VAL		0x00000000
+#define ACFG_GPR_D_VAL		0x00000000
+#define ACFG_PUEN_D_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_E_VAL		0x00000000
+#define ACFG_OCR1_E_VAL		0x00000000
+#define ACFG_OCR2_E_VAL		0x00000000
+#define ACFG_ICFA1_E_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_E_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_E_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_E_VAL		0xFFFFFFFF
+#define ACFG_DR_E_VAL		0x00000000
+#define ACFG_GIUS_E_VAL		0xFCFFCCF8
+#define ACFG_ICR1_E_VAL		0x00000000
+#define ACFG_ICR2_E_VAL		0x00000000
+#define ACFG_IMR_E_VAL		0x00000000
+#define ACFG_GPR_E_VAL		0x00000000
+#define ACFG_PUEN_E_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_F_VAL		0x00000000
+#define ACFG_OCR1_F_VAL		0x00000000
+#define ACFG_OCR2_F_VAL		0x00000000
+#define ACFG_ICFA1_F_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_F_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_F_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_F_VAL		0xFFFFFFFF
+#define ACFG_DR_F_VAL		0x00000000
+#define ACFG_GIUS_F_VAL		0xFF7F8000
+#define ACFG_ICR1_F_VAL		0x00000000
+#define ACFG_ICR2_F_VAL		0x00000000
+#define ACFG_IMR_F_VAL		0x00000000
+#define ACFG_GPR_F_VAL		0x00000000
+#define ACFG_PUEN_F_VAL		0xFFFFFFFF
+#endif /* ACFG_APF27_CUSTOM */
+
+/* Enforce DDR signal strengh & enable USB/PP/DMA burst override bits */
+#define ACFG_GPCR_VAL		0x0003000F
+
+#define ACFG_ESDMISC_VAL		ESDMISC_LHD+ESDMISC_MDDREN
+
+/* FMCR select num LPDDR RAMs and nand 16bits, 2KB pages */
+#if (CONFIG_NR_DRAM_BANKS == 1)
+#define ACFG_FMCR_VAL 0xFFFFFFF9
+#elif (CONFIG_NR_DRAM_BANKS == 2)
+#define ACFG_FMCR_VAL 0xFFFFFFFB
+#endif
+
+#ifndef ACFG_APF27_CUSTOM
+#define ACFG_AIPI1_PSR0_VAL	0x20040304
+#define ACFG_AIPI1_PSR1_VAL	0xDFFBFCFB
+#define ACFG_AIPI2_PSR0_VAL	0x00000000
+#define ACFG_AIPI2_PSR1_VAL	0xFFFFFFFF
+#endif /* ACFG_APF27_CUSTOM */
+
+/* PCCR enable DMA FEC I2C1 IIM SDHC1 */
+#ifndef ACFG_APF27_CUSTOM
+#define ACFG_PCCR0_VAL		0x05070410
+#define ACFG_PCCR1_VAL		0xA14A0608
+#endif /* ACFG_APF27_CUSTOM */
+
+/*
+ * From here, there should not be any user configuration.
+ * All Equations are automatic
+ */
+
+/* fixme none integer value (7.5ns) => 2*hclock = 15ns */
+#define ACFG_2XHCLK_LGTH		(2000/CONFIG_HCLK_FREQ)	/* ns */
+
+/* USB 60 MHz ; ARM up to 400; HClK up to 133MHz*/
+#ifdef CONFIG_MX27_CLK26
+#define CSCR_MASK 0x0303800D
+#else
+#define CSCR_MASK 0x0300800D
+#endif
+#define ACFG_CSCR_VAL\
+	(CSCR_MASK						\
+	|((((CONFIG_SPLL_FREQ/CONFIG_USB_FREQ)-1)&0x07) << 28)	\
+	|((((CONFIG_MPLL_FREQ/CONFIG_ARM_FREQ)-1)&0x03) << 12)	\
+	|((((ACFG_CLK_FREQ/CONFIG_HCLK_FREQ)-1)&0x03) << 8))
+
+/* SSIx CLKO NFC H264 MSHC */
+#define ACFG_PCDR0_VAL\
+	(((((ACFG_CLK_FREQ/CONFIG_MSHC_FREQ)-1)&0x3F)<<0)	\
+	|((((CONFIG_HCLK_FREQ/CONFIG_NFC_FREQ)-1)&0x0F)<<6)	\
+	|(((((ACFG_CLK_FREQ/CONFIG_H264_FREQ)-2)*2)&0x3F)<<10)\
+	|(((((ACFG_CLK_FREQ/CONFIG_SSI1_FREQ)-2)*2)&0x3F)<<16)\
+	|(((CONFIG_CLK0_DIV)&0x07)<<22)\
+	|(((CONFIG_CLK0_EN)&0x01)<<25)\
+	|(((((ACFG_CLK_FREQ/CONFIG_SSI2_FREQ)-2)*2)&0x3F)<<26))
+
+/* PERCLKx  */
+#define ACFG_PCDR1_VAL\
+	(((((ACFG_CLK_FREQ/CONFIG_PERIF1_FREQ)-1)&0x3F)<<0)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF2_FREQ)-1)&0x3F)<<8)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF3_FREQ)-1)&0x3F)<<16)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF4_FREQ)-1)&0x3F)<<24))
+
+/* SDRAM controller programming Values */
+#if (((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1) > (3*ACFG_2XHCLK_LGTH)) \
+	|| (ACFG_SDRAM_CLOCK_CYCLE_CL_1 < 1))
+#define REG_FIELD_SCL_VAL 3
+#define REG_FIELD_SCLIMX_VAL 0
+#else
+#define REG_FIELD_SCL_VAL\
+	((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)
+#define REG_FIELD_SCLIMX_VAL REG_FIELD_SCL_VAL
+#endif
+
+#if ((2*ACFG_SDRAM_RC_DELAY) > (16*ACFG_2XHCLK_LGTH))
+#define REG_FIELD_SRC_VAL 0
+#else
+#define REG_FIELD_SRC_VAL\
+	((2*ACFG_SDRAM_RC_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)
+#endif
+
+/* TBD Power down timer ; PRCT Bit Field Encoding; burst length 8 ; FP = 0*/
+#define REG_ESDCTL_BASE_CONFIG (0x80020485\
+				| (((ACFG_SDRAM_NUM_ROW-11)&0x7)<<24)\
+				| (((ACFG_SDRAM_NUM_COL-8)&0x3)<<20)\
+				| (((ACFG_SDRAM_REFRESH)&0x7)<<13))
+
+#define ACFG_NORMAL_RW_CMD	((0x0<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_PRECHARGE_CMD	((0x1<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_AUTOREFRESH_CMD	((0x2<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_SET_MODE_REG_CMD	((0x3<<28)+REG_ESDCTL_BASE_CONFIG)
+
+/* ESDRAMC Configuration Registers : force CL=3 to lpddr */
+#define ACFG_SDRAM_ESDCFG_REGISTER_VAL (0x0\
+	| (((((2*ACFG_SDRAM_EXIT_PWD+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x3)<<21)\
+	| (((ACFG_SDRAM_W2R_DELAY-1)&0x1)<<20)\
+	| (((((2*ACFG_SDRAM_ROW_PRECHARGE_DELAY+ \
+		ACFG_2XHCLK_LGTH-1)/ACFG_2XHCLK_LGTH)-1)&0x3)<<18) \
+	| (((ACFG_SDRAM_TMRD_DELAY-1)&0x3)<<16)\
+	| (((ACFG_SDRAM_TWR_DELAY)&0x1)<<15)\
+	| (((((2*ACFG_SDRAM_RAS_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x7)<<12) \
+	| (((((2*ACFG_SDRAM_RRD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x3)<<10) \
+	| (((REG_FIELD_SCLIMX_VAL)&0x3)<<8)\
+	| (((((2*ACFG_SDRAM_RCD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x7)<<4) \
+	| (((REG_FIELD_SRC_VAL)&0x0F)<<0))
+
+/* Issue Mode register Command to SDRAM*/
+#define ACFG_SDRAM_MODE_REGISTER_VAL\
+	((((ACFG_SDRAM_BURST_LENGTH)&0x7)<<(0))\
+	| (((REG_FIELD_SCL_VAL)&0x7)<<(4))\
+	| ((0)<<(3)) /* sequentiql access */ \
+	/*| (((ACFG_SDRAM_SINGLE_ACCESS)&0x1)<<(1))*/)
+
+/* Issue Extended Mode register Command to SDRAM*/
+#define ACFG_SDRAM_EXT_MODE_REGISTER_VAL\
+	((ACFG_SDRAM_PARTIAL_ARRAY_SR<<0)\
+	| (ACFG_SDRAM_DRIVE_STRENGH<<(5))\
+	| (1<<(ACFG_SDRAM_NUM_COL+ACFG_SDRAM_NUM_ROW+1+2)))
+
+/* Issue Precharge all Command to SDRAM*/
+#define ACFG_SDRAM_PRECHARGE_ALL_VAL (1<<10)
+
+#endif /* __APF27_H */
diff --git a/board/armadeus/apf27/start.S b/board/armadeus/apf27/start.S
new file mode 100644
index 0000000..05d5de0
--- /dev/null
+++ b/board/armadeus/apf27/start.S
@@ -0,0 +1,538 @@ 
+/*
+ *  IMX27 NAND Flash SPL (Secondary Program Loader)
+ *
+ *  Copyright (c) 2008  Armadeus Project / eja
+ *
+ *  Based on Freescale NAND SPL
+ *
+ *  Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+ *  Copyright (c) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
+ *
+ * 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 <config.h>
+#include <generated/asm-offsets.h>
+#include <version.h>
+#include <asm/macro.h>
+#include <asm/arch/mxc_nand.h>
+#include <asm/arch/imx-regs.h>
+#include "apf27.h"
+
+/*
+ * Standard NAND flash commands
+ */
+#define NAND_CMD_READ0		0
+#define NAND_CMD_READ1		1
+#define NAND_CMD_PAGEPROG	0x10
+#define NAND_CMD_READOOB	0x50
+#define NAND_CMD_ERASE1		0x60
+#define NAND_CMD_STATUS		0x70
+#define NAND_CMD_STATUS_MULTI	0x71
+#define NAND_CMD_SEQIN		0x80
+#define NAND_CMD_READID		0x90
+#define NAND_CMD_ERASE2		0xd0
+#define NAND_CMD_RESET		0xff
+
+/* Extended commands for large page devices */
+#define NAND_CMD_READSTART	0x30
+#define NAND_CMD_CACHEDPROG	0x15
+
+/* Status bits */
+#define NAND_STATUS_FAIL	0x01
+#define NAND_STATUS_FAIL_N1	0x02
+#define NAND_STATUS_TRUE_READY	0x20
+#define NAND_STATUS_READY	0x40
+#define NAND_STATUS_WP		0x80
+
+	.macro nand_boot
+
+#ifdef CONFIG_BOOT_TRACE_REG
+/*
+ * If CONFIG_BOOT_TRACE_REG is a SDRAM address then be sure to use the following
+ * 2 command after SDRAM init
+ */
+
+/* Backup state of previous boot to CONFIG_BOOT_TRACE_REG+4*/
+#define BACKUP_TRACE()			\
+	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
+	ldr r3, [r4];			\
+	str r3, [r4, #0x04];
+
+/* Save a state of boot at CONFIG_BOOT_TRACE_REG */
+#define BOOT_TRACE(val)		\
+	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
+	ldr r3, =val;			\
+	str r3, [r4];
+#else
+#define BACKUP_TRACE()
+#define BOOT_TRACE(val)
+#endif
+
+nand_boot_setup:
+
+	/* Copy SPL image from flash to SDRAM first */
+	BOOT_TRACE(1)
+	ldr r0, =IMX_NFC_MAIN_AREA0
+	add r2, r0, #(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0) //2KB NFC Buff
+	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
+
+	BOOT_TRACE(2)
+1:	ldmia r0!, {r3-r10}
+	stmia r1!, {r3-r10}
+	cmp r0, r2
+	blo 1b
+
+
+
+	/* Jump to SDRAM */
+	BOOT_TRACE(3)
+	ldr r1, =0x7FF
+	and r0, pc, r1	 /* offset of pc */
+	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
+	add r1, r1, #0x10
+	add pc, r0, r1
+	nop
+	nop
+	nop
+	nop
+
+nand_copy_main:
+	BOOT_TRACE(4)
+	/* r0: nfc base. Reloaded after each page copying		*/
+	ldr r0, =IMX_NFC_MAIN_AREA0
+
+	/* r1: starting flash addr to be copied. Updated constantly	*/
+	/* bypass the first preloaded pages				*/
+	ldr r1, =(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0)
+
+	/* r2: end of 1st RAM buf. Doesn't change			*/
+	ldr r2, =IMX_NFC_MAIN_AREA1
+
+	/* r12: NFC register base. Doesn't change			*/
+	ldr r12, =IMX_NFC_REGS
+
+	ldr r11, =CONFIG_SYS_NAND_U_BOOT_DST
+
+	/* r13: end of SDRAM address for copying. Doesn't change	*/
+	add r13, r11, #CONFIG_SYS_NAND_U_BOOT_SIZE
+
+	/* r11: starting SDRAM address for copying. Updated constantly	*/
+	add r11, r11, r1
+
+	/* unlock internal buffer					*/
+	ldr r3, =NFC_CONFIG_UNLOCKED
+	strh r3, [r12, #NFC_OFFSET_CONFIG]
+
+	/* enable ECC and mask interrupts				*/
+	ldr r3, =(NFC_CONFIG1_ECC_EN | NFC_CONFIG1_INT_MSK)
+	strh r3, [r12, #NFC_OFFSET_CONFIG1]
+
+nfc_read_page:
+	BOOT_TRACE(5)
+	/*  send NAND_CMD_READ0 command				*/
+	ldr r3, =NAND_CMD_READ0;
+	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
+
+	ldr r3, =NFC_CONFIG2_FCMD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	/* send NAND address to read. TODO small page support		*/
+	BOOT_TRACE(6)
+	mov r3, r1, lsr #1
+	bl do_addr_input	   /* 1st addr cycle */
+
+	mov r3, r1, lsr #9
+	and r3, r3, #0x03
+	bl do_addr_input	   /* 2nd addr cycle */
+
+	mov r3, r1, lsr #11
+	bl do_addr_input	   /* 3rd addr cycle */
+
+	mov r3, r1, lsr #19
+	bl do_addr_input	   /* 4th addr cycle */
+
+	/* Small NAND flashs (== 1Gb) support 5 addr cycles		*/
+	mov r3, r1, lsr #27
+	bl do_addr_input	   /* 5th addr cycle */
+
+	/* send NAND_CMD_READSTART command. TODO small page support	*/
+	BOOT_TRACE(7)
+	mov r3, #NAND_CMD_READSTART;
+	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
+	mov r3, #NFC_CONFIG2_FCMD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	/* read and copy buf 0						*/
+	BOOT_TRACE(8)
+	mov r3, #0
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* read and copy buf 1						*/
+	mov r3, #1
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* here we should test if 512B page flash and bypass next buffers */
+	/* read and copy buf 2. TODO small page support		*/
+	mov r3, #2
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* read and copy buf 3						*/
+	mov r3, #3
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* is the last page ? */
+	BOOT_TRACE(12)
+	cmp r11, r13
+	bge nand_copy_main_done
+
+	/* r0: nfc base. Reloaded after each page copying		*/
+	ldr r0, =IMX_NFC_MAIN_AREA0
+	/* r2: end of 1st RAM buf. Doesn't change 			*/
+	ldr r2, =IMX_NFC_MAIN_AREA1
+	b nfc_read_page
+
+nand_copy_main_done:
+	BOOT_TRACE(13)
+	.endm /* nand_boot */
+
+	.macro init_aipi
+	/*
+	 * setup AIPI1 and AIPI2
+	 */
+	write32 AIPI1_PSR0, ACFG_AIPI1_PSR0_VAL
+	write32 AIPI1_PSR1, ACFG_AIPI1_PSR1_VAL
+	write32 AIPI2_PSR0, ACFG_AIPI2_PSR0_VAL
+	write32 AIPI2_PSR1, ACFG_AIPI2_PSR1_VAL
+
+	/* Change SDRAM signal strengh */
+	ldr r0, =GPCR
+	ldr r1, =ACFG_GPCR_VAL
+	ldr r5, [r0]
+	orr r5, r5, r1
+	str r5, [r0]
+
+	.endm /* init_aipi */
+
+	.macro init_clock
+	ldr r0, =CSCR
+	/* disable MPLL/SPLL first */
+	ldr r1, [r0]
+	bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
+	str r1, [r0]
+
+ 	/*
+	 * pll clock initialization predefined in apf27.h
+	 */
+	write32 MPCTL0, ACFG_MPCTL0_VAL
+	write32 SPCTL0, ACFG_SPCTL0_VAL
+
+	write32 CSCR, ACFG_CSCR_VAL|CSCR_MPLL_RESTART|CSCR_SPLL_RESTART
+
+	/*
+	 * add some delay here
+	 */
+	mov r1, #0x1000
+	1:  subs r1, r1, #0x1
+	bne 1b
+
+	/* peripheral clock divider */
+	write32 PCDR0, ACFG_PCDR0_VAL
+	write32 PCDR1, ACFG_PCDR1_VAL
+
+	/* Configure PCCR0 and PCCR1 */
+	write32 PCCR0, ACFG_PCCR0_VAL
+	write32 PCCR1, ACFG_PCCR1_VAL
+
+	.endm /* init_clock */
+
+/*
+ *************************************************************************
+ *
+ * No jump vector table. Use reset vector as direct entry point.
+ * Do not support any interrupt event within SPL
+ *
+ *************************************************************************
+ */
+
+
+.globl _start
+_start:
+
+/*
+ *************************************************************************
+ *
+ * Startup Code (reset vector)
+ *
+ * do important init only if we don't start from memory!
+ * setup Memory and board specific bits prior to relocation.
+ * relocate armboot to ram
+ * setup stack
+ *
+ *************************************************************************
+ */
+
+
+/*
+ * the actual reset code
+ */
+
+reset:
+	/*
+	 * set the cpu to SVC32 mode
+	 */
+	mrs	r0,cpsr
+	bic	r0,r0,#0x1f
+	orr	r0,r0,#0xd3
+	msr	cpsr,r0
+
+	/*
+	 * invalidate I/D cache/TLB and drain write buffer
+	 */
+	mov r0, #0
+	mcr p15, 0, r0, c7, c7, 0	/* invalidate I cache and D cache */
+	mcr p15, 0, r0, c8, c7, 0	/* invalidate TLBs */
+	mcr p15, 0, r0, c7, c10, 4   /* Drain the write buffer */
+
+	/*
+	 * disable MMU stuff and caches
+	 */
+	mrc p15, 0, r0, c1, c0, 0
+	bic	r0, r0, #0x00002300	/* clear bits 13, 9:8 (--V- --RS) */
+	bic	r0, r0, #0x00000087	/* clear bits 7, 2:0 (B--- -CAM) */
+	orr	r0, r0, #0x00000002	/* set bit 2 (A) Align */
+	orr	r0, r0, #0x00001000	/* set bit 12 (I) I-Cache */
+	mcr p15, 0, r0, c1, c0, 0
+
+init_aipi_start:
+	init_aipi
+
+	/* check if sdram has been setup (running within sdram) */
+	cmp pc, #0xa0000000 /* start of first sdram memory space */
+	blo init_clock_start
+	cmp pc, #0xc0000000 /* end of second sdram memory space */
+	blo regular_boot
+
+	/* running from sdram with full code present -> regular_boot */
+init_clock_start:
+	init_clock
+
+init_sdram_start:
+	bl setup_sdram_ddr
+
+	/* save state of previous boot (SDRAM is configured)*/
+	BACKUP_TRACE()
+
+	/* nand_boot BOOT_TRACE(1..13) */
+
+	nand_boot
+
+	BOOT_TRACE(14) /* start regular U-Boot */
+
+regular_boot: /* jump to start of next 2kiB block (U-Boot) */
+	ldr r0, =0xfffff800
+	and r0, r0, pc
+	add pc, r0, #0x800
+
+do_wait_op_done:
+	1:
+	ldrh r3, [r12, #NFC_OFFSET_CONFIG2]
+	ands r3, r3, #NFC_CONFIG2_INT
+	beq 1b
+	mov r3, #0x0
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	mov	pc, lr
+
+do_addr_input:
+	mov r9, lr
+	and r3, r3, #0xFF
+	strh r3, [r12, #NFC_OFFSET_FLASH_ADDR]
+	mov r3, #NFC_CONFIG2_FADD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+	mov pc, r9
+
+test_and_copy_buffer:
+	/* check for bad block (2 bits error in main or spare are)*/
+	BOOT_TRACE(9)
+	ldrh r4, [r12, #NFC_OFFSET_ECC_STATUS_RESULT]
+	ands r4, r4, #(NFC_ECC_STAT_ERROR2| \
+		(NFC_ECC_STAT_ERROR2<<NFC_ECC_STAT_ERM_SHFT))
+	bne skip_bad_buffer
+
+	/* check BI byte of the current spare buffer */
+	ldr r4, =IMX_NFC_SPARE_AREA0
+	ldrh r3, [r12, #NFC_OFFSET_BUF_ADDR] /* for the current buffer */
+	orr  r4, r3, lsl #0x04
+
+	/* at bi word offset 4. */
+	/* Fixme position change betwwen 8 and 16 bits bus */
+	ldrh r4, [r4, #0x04]
+	and r4, r4, #0x0FF00 /* has to be 0xFFxx */
+	cmp r4, #0x0FF00
+	bne skip_bad_buffer
+
+copy_good_buffer:
+	/* copying 512 bytes buffer */
+	BOOT_TRACE(10)
+1:  ldmia r0!, {r3-r10}
+	stmia r11!, {r3-r10}
+	cmp r0, r2
+	blo 1b
+	b end_of_copy
+
+skip_bad_buffer:
+	BOOT_TRACE(11)
+	/* bad pages do not contain valid data and have to be skip	*/
+	add r0, r0, #0x200
+
+	/* rewind ram addr to start of buffer */
+	ldr r3, =(~0x1FF)
+	and r11, r11, r3
+
+end_of_copy:
+	add r2, r2, #0x200
+	add r1, r1, #0x200
+
+	mov	pc, lr
+
+setup_sdram_ddr:
+
+	/* wait for SDRAM/LPDDR ready (SDRAMRDY) */
+	ldr  r0, =IMX_ESD_BASE
+	ldr  r4, =ESDMISC_SDRAM_RDY
+2:	ldr  r1, [r0, #ESDMISC_ROF]
+	ands r1, r1, r4
+	bpl 2b
+
+	/* LPDDR Soft Reset Mobile/Low Power DDR SDRAM. */
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r4, =ACFG_ESDMISC_VAL
+	orr		r1, r4, #ESDMISC_MDDR_DL_RST
+	str		r1, [r0, #ESDMISC_ROF]
+
+	/* Hold for more than 200ns */
+	ldr r1, =0x10000
+	1:	subs r1, r1, #0x1
+	bne 1b
+
+	str		r4, [r0]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
+	str		r1, [r0, #ESDCFG0_ROF]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_PRECHARGE_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* write8(0xA0001000, any value) */
+	ldr		r1, =PHYS_SDRAM_1+ACFG_SDRAM_PRECHARGE_ALL_VAL
+	strb		r2, [r1]
+
+	ldr		r1, =ACFG_AUTOREFRESH_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	ldr 		r4, =PHYS_SDRAM_1	/* CSD0 base address	*/
+
+	ldr 		r6,=0x7		/* load loop counter	*/
+1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
+	subs 		r6,r6,#1
+	bne 1b
+
+	ldr		r1, =ACFG_SET_MODE_REG_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* set standard mode register */
+	ldr		r4, = PHYS_SDRAM_1+ACFG_SDRAM_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	/* set extended mode register */
+	ldr		r4, =PHYS_SDRAM_1+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
+	strb		r5, [r4]
+
+	ldr		r1, =ACFG_NORMAL_RW_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* 2nd sdram */
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
+	str		r1, [r0, #ESDCFG1_ROF]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_PRECHARGE_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	/* write8(0xB0001000, any value) */
+	ldr		r1, =PHYS_SDRAM_2+ACFG_SDRAM_PRECHARGE_ALL_VAL
+	strb		r2, [r1]
+
+	ldr		r1, =ACFG_AUTOREFRESH_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	ldr 		r4, =PHYS_SDRAM_2	/* CSD1 base address */
+
+	ldr 		r6,=0x7		/* load loop counter */
+1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
+	subs 		r6,r6,#1
+	bne 1b
+
+	ldr		r1, =ACFG_SET_MODE_REG_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	/* set standard mode register */
+	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	/* set extended mode register */
+	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	ldr		r1, =ACFG_NORMAL_RW_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	mov	pc, lr
+
diff --git a/board/armadeus/apf27/u-boot-spl.lds b/board/armadeus/apf27/u-boot-spl.lds
new file mode 100644
index 0000000..9e82c6f
--- /dev/null
+++ b/board/armadeus/apf27/u-boot-spl.lds
@@ -0,0 +1,86 @@ 
+/*
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * January 2004 - Changed to support H4 device
+ * Copyright (c) 2004-2008 Texas Instruments
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@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.
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0xA0fff800;
+
+	. = ALIGN(4);
+	.text	: {
+		board/armadeus/apf27/start.o	(.text)
+		*(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+	. = ALIGN(4);
+	.data : {
+		*(.data)
+	}
+
+	. = ALIGN(4);
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+
+	.rel.dyn : {
+		__rel_dyn_start = .;
+		*(.rel*)
+		__rel_dyn_end = .;
+	}
+
+	.dynsym : {
+		__dynsym_start = .;
+		*(.dynsym)
+	}
+
+	.bss : {
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.bss*)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	}
+
+	_end = .;
+
+	/DISCARD/ : { *(.dynstr*) }
+	/DISCARD/ : { *(.dynsym*) }
+	/DISCARD/ : { *(.dynamic*) }
+	/DISCARD/ : { *(.hash*) }
+	/DISCARD/ : { *(.plt*) }
+	/DISCARD/ : { *(.interp*) }
+	/DISCARD/ : { *(.gnu*) }
+}
diff --git a/boards.cfg b/boards.cfg
index 6f21af0..fdee7e7 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -186,6 +186,7 @@  jadecpu                      arm         arm926ejs   jadecpu             syteco
 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
+apf27                        arm         arm926ejs   apf27               armadeus       mx27
 imx27lite                    arm         arm926ejs   imx27lite           logicpd        mx27
 magnesium                    arm         arm926ejs   imx27lite           logicpd        mx27
 apx4devkit                   arm         arm926ejs   apx4devkit          bluegiga       mxs		apx4devkit
diff --git a/include/configs/apf27.h b/include/configs/apf27.h
new file mode 100644
index 0000000..403f081
--- /dev/null
+++ b/include/configs/apf27.h
@@ -0,0 +1,445 @@ 
+/*
+ *
+ * Configuration settings for the Armadeus Project motherboard APF27
+ *
+ * Copyright (C) 2008-2012 ej / Armadeus Project <eric.jarrige@armadeus.org>
+ *
+ * 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
+
+#define CONFIG_VERSION_VARIABLE
+#define CONFIG_ENV_VERSION	"3.3"
+#define CONFIG_IDENT_STRING	" apf27 patch 3.8"
+#define CONFIG_BOARD_NAME	apf27
+
+/*
+ * SoC configurations
+ */
+#define CONFIG_ARM926EJS		/* this is an ARM926EJS CPU */
+#define CONFIG_MX27			/* in a Freescale i.MX27 Chip */
+#define CONFIG_MACH_TYPE	1698	/* APF27 */
+
+/*
+ * Enable the call to miscellaneous platform dependent initialization.
+ */
+#define CONFIG_SYS_NO_FLASH	/* to be define before <config_cmd_default.h> */
+#define CONFIG_MISC_INIT_R
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/*
+ * Board display option
+ */
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_DISPLAY_CPUINFO
+
+/*
+ * SPL
+ */
+/* Copy SPL+U-Boot here	     */
+#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_TEXT_BASE - 0x800)
+/* Size is the partion size  */
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	CONFIG_SYS_MONITOR_LEN
+/* Build image with spl and u-boot */
+#define CONFIG_NAND_U_BOOT
+#define CONFIG_SPL_PAD_TO		0xa1000000
+
+/*
+ * SPL
+ */
+#define	CONFIG_SPL
+#define	CONFIG_SPL_NO_CPU_SUPPORT_CODE
+#define	CONFIG_SPL_START_S_PATH	"board/armadeus/apf27"
+#define	CONFIG_SPL_LDSCRIPT	"board/armadeus/apf27/u-boot-spl.lds"
+#define	CONFIG_SPL_LIBCOMMON_SUPPORT
+#define	CONFIG_SPL_LIBGENERIC_SUPPORT
+
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+
+#define CONFIG_HOSTNAME	CONFIG_BOARD_NAME
+#define CONFIG_ROOTPATH	"/tftpboot/" __stringify(CONFIG_BOARD_NAME) "-root"
+
+/*
+ * U-Boot Commands
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ASKENV	/* ask for env variable		*/
+#define CONFIG_CMD_BSP		/* Board Specific functions	*/
+#define CONFIG_CMD_CACHE	/* icache, dcache		*/
+#define CONFIG_CMD_DHCP		/* DHCP Support			*/
+#define CONFIG_CMD_DNS
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT		/* FAT support			*/
+#define CONFIG_CMD_IMX_FUSE	/* imx iim fuse                 */
+#define CONFIG_CMD_MII		/* MII support			*/
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_MTDPARTS	/* MTD partition support	*/
+#define CONFIG_CMD_NAND		/* NAND support			*/
+#define CONFIG_CMD_NAND_LOCK_UNLOCK
+#define CONFIG_CMD_NAND_TRIMFFS
+#define CONFIG_CMD_NFS		/* NFS support			*/
+#define CONFIG_CMD_PING		/* ping support			*/
+#define CONFIG_CMD_SETEXPR	/* setexpr support		*/
+#define CONFIG_CMD_UBI
+#define CONFIG_CMD_UBIFS
+
+/*
+ * Memory configurations
+ */
+#define CONFIG_NR_DRAM_POPULATED 1
+#define CONFIG_NR_DRAM_BANKS	2
+
+#define ACFG_SDRAM_MBYTE_SYZE 64
+
+#define PHYS_SDRAM_1			0xA0000000
+#define PHYS_SDRAM_2			0xB0000000
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (512<<10))
+#define CONFIG_SYS_MEMTEST_START	0xA0000000	/* memtest test area  */
+#define CONFIG_SYS_MEMTEST_END		0xA0300000	/* 3 MiB RAM test */
+
+#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_SDRAM_BASE	\
+		+ PHYS_SDRAM_1_SIZE - 0x0100000)
+
+#define CONFIG_SYS_TEXT_BASE	0xA1000000
+
+/*
+ * FLASH organization
+ */
+#define	ACFG_MONITOR_OFFSET		0x00000000
+#define	CONFIG_SYS_MONITOR_LEN		0x00100000	/* 1MiB */
+#define CONFIG_ENV_IS_IN_NAND
+#define	CONFIG_ENV_OVERWRITE
+#define	CONFIG_ENV_OFFSET		0x00100000	/* NAND offset */
+#define	CONFIG_ENV_SIZE			0x00020000	/* 128kB  */
+#define CONFIG_ENV_RANGE		0X00080000	/* 512kB */
+#define	CONFIG_ENV_OFFSET_REDUND	\
+		(CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE)	/* +512kB */
+#define	CONFIG_ENV_SIZE_REDUND		CONFIG_ENV_SIZE	/* 512kB */
+#define	CONFIG_FIRMWARE_OFFSET		0x00200000
+#define	CONFIG_KERNEL_OFFSET		0x00300000
+#define	CONFIG_ROOTFS_OFFSET		0x00800000
+
+#define CONFIG_MTDMAP			"mxc_nand.0"
+#define MTDIDS_DEFAULT			"nand0=" CONFIG_MTDMAP
+#define MTDPARTS_DEFAULT	"mtdparts=" CONFIG_MTDMAP \
+				":1M(u-boot)ro," \
+				"512K(env)," \
+				"512K(env2)," \
+				"512K(firmware)," \
+				"512K(dtb)," \
+				"5M(kernel)," \
+				"-(rootfs)"
+
+/*
+ * U-Boot general configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"BIOS> "	/* prompt string */
+#define CONFIG_SYS_CBSIZE		2048		/* console I/O buffer */
+#define CONFIG_SYS_PBSIZE		\
+				(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+						/* Print buffer size */
+#define CONFIG_SYS_MAXARGS		16		/* max command args */
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+						/* Boot argument buffer size */
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_HUSH_PARSER			/* enable the "hush" shell */
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "	/* secondary prompt string */
+
+/*
+ * Boot Linux
+ */
+#define CONFIG_CMDLINE_TAG		/* send commandline to Kernel	*/
+#define CONFIG_SETUP_MEMORY_TAGS	/* send memory definition to kernel */
+#define CONFIG_INITRD_TAG		/* send initrd params	*/
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_BOOTDELAY	5
+#define CONFIG_ZERO_BOOTDELAY_CHECK
+#define	CONFIG_BOOTFILE		__stringify(CONFIG_BOARD_NAME) "-linux.bin"
+#define CONFIG_BOOTARGS		"console=" __stringify(ACFG_CONSOLE_DEV) "," \
+			__stringify(CONFIG_BAUDRATE) " " MTDPARTS_DEFAULT \
+			" ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs "
+
+#define ACFG_CONSOLE_DEV	ttySMX0
+#define CONFIG_BOOTCOMMAND	"run ubifsboot"
+#define CONFIG_SYS_AUTOLOAD	"no"
+/*
+ * Default load address for user programs and kernel
+ */
+#define CONFIG_LOADADDR			0xA0000000
+#define	CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+/*
+ * Extra Environments
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"env_version="		CONFIG_ENV_VERSION			"\0" \
+	"consoledev="		__stringify(ACFG_CONSOLE_DEV)		"\0" \
+	"mtdparts="		MTDPARTS_DEFAULT			"\0" \
+	"partition=nand0,6\0"						\
+	"u-boot_addr="		__stringify(ACFG_MONITOR_OFFSET)	"\0" \
+	"env_addr="		__stringify(CONFIG_ENV_OFFSET)		"\0" \
+	"firmware_addr="	__stringify(CONFIG_FIRMWARE_OFFSET)	"\0" \
+	"kernel_addr="		__stringify(CONFIG_KERNEL_OFFSET)	"\0" \
+	"rootfs_addr="		__stringify(CONFIG_ROOTFS_OFFSET)	"\0" \
+	"board_name="		__stringify(CONFIG_BOARD_NAME)		"\0" \
+	"kernel_addr_r=A0000000\0" \
+	"addnfsargs=setenv bootargs ${bootargs} "			\
+		"root=/dev/nfs rw nfsroot=${serverip}:${rootpath}\0"    \
+	"addubifsargs=setenv bootargs ${bootargs} "			\
+		"ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs\0"    \
+	"addmmcargs=setenv bootargs ${bootargs} "			\
+		"root=/dev/mmcblk0p1 rootfstype=ext2\0"			\
+	"addipargs=setenv bootargs ${bootargs} "			\
+		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:"	\
+		"${hostname}:eth0:off \0"				\
+	"nfsboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs}; run addnfsargs addipargs;"\
+		"nfs ${kernel_addr_r} "					\
+		"${serverip}:${rootpath}/boot/${board_name}-linux.bin;"	\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"ubifsboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs};run addubifsargs addipargs;"\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"nboot ${kernel_addr_r} kernel;"			\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"mmcboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs}; run addmmcargs addipargs;"\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"mmc dev 0; ext2load mmc 0 ${kernel_addr_r}"		\
+			" /boot/${board_name}-linux.bin;"		\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"boot_nfs_fallback_flash=if ping ${serverip};"			\
+			"then echo Boot over NFS; run nfsboot;"		\
+			"else echo Boot from the board; run ubifsboot;"	\
+		"fi\0"							\
+	"firmware_autoload=0\0"						\
+	"flash_uboot=nand unlock ${u-boot_addr} ;"			\
+		"nand erase.part u-boot;"		\
+		"if nand write.trimffs ${fileaddr} ${u-boot_addr} ${filesize};"\
+			"then nand lock; nand unlock ${env_addr};"	\
+				"echo Flashing of uboot succeed;"	\
+			"else echo Flashing of uboot failed;"		\
+		"fi; \0"						\
+	"flash_firmware=nand erase.part firmware;"			\
+	"if nand write.trimffs ${fileaddr} ${firmware_addr} ${filesize};"\
+			"then echo Flashing of Firmware succeed;"	\
+			"else echo Flashing of Firmware failed;"	\
+		"fi\0"							\
+	"flash_kernel=nand erase.part kernel;"				\
+		"if nand write.trimffs ${fileaddr} ${kernel_addr} ${filesize};"\
+			"then echo Flashing of kernel succeed;"		\
+			"else echo Flashing of kernel failed;"		\
+		"fi\0"							\
+	"flash_rootfs=nand erase.part rootfs;"	\
+		"if nand write.trimffs ${fileaddr} ${rootfs_addr} ${filesize};"\
+			"then echo Flashing of rootfs succeed;"		\
+			"else echo Flashing of rootfs failed;"		\
+		"fi\0"							\
+	"flash_dtb=nand erase.part dtb;"				\
+		"if nand write.trimffs ${fileaddr} dtb ${filesize};"	\
+			"then echo Flashing of rootfs succeed;"		\
+			"else echo Flashing of rootfs failed;"		\
+		"fi\0"							\
+	"flash_reset_env=env default -f -a; saveenv;"			\
+		"echo Flash environment variables erased!\0"		\
+	"download_uboot=tftpboot ${loadaddr} ${board_name}-u-boot-nand.bin\0" \
+	"download_kernel=tftpboot ${loadaddr} ${board_name}-linux.bin\0" \
+	"download_rootfs=tftpboot ${loadaddr} ${board_name}-rootfs.ubi\0" \
+	"download_dtb=tftpboot ${loadaddr} imx27-${board_name}.dtb\0" \
+	"update_uboot=run download_uboot flash_uboot\0"			\
+	"update_kernel=run download_kernel flash_kernel\0"		\
+	"update_rootfs=run download_rootfs flash_rootfs\0"		\
+	"update_dtb=run download_dtb flash_dtb\0"		\
+	"update_all=run download_kernel flash_kernel download_rootfs "	\
+		"flash_rootfs download_uboot flash_uboot\0"		\
+	"unlock_regs=mw 10000008 0; mw 10020008 0\0"			\
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_MXC_UART
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_MXC_UART_BASE		UART1_BASE
+
+/*
+ * GPIO
+ */
+#define CONFIG_MXC_GPIO
+
+/*
+ * NOR
+ */
+
+/*
+ * NAND
+ */
+#define CONFIG_NAND_MXC
+
+#define CONFIG_MXC_NAND_REGS_BASE	0xD8000000
+#define CONFIG_SYS_NAND_BASE		CONFIG_MXC_NAND_REGS_BASE
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define CONFIG_MXC_NAND_HWECC
+#define CONFIG_SYS_NAND_LARGEPAGE
+#define IMX27_NAND_16BITS
+#define NAND_MAX_CHIPS			1
+
+
+#define CONFIG_FLASH_SHOW_PROGRESS	45
+#define CONFIG_SYS_NAND_QUIET		1
+
+#define CONFIG_BOOT_TRACE_REG	0xAFFFFFF8 /* Addr to store traces of SPL boot*/
+
+/*
+ * Partitions & Filsystems
+ */
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#define CONFIG_DOS_PARTITION
+#define CONFIG_SUPPORT_VFAT
+
+/*
+ * UBIFS
+ */
+#define CONFIG_RBTREE
+#define CONFIG_LZO
+
+/*
+ * Ethernet (on SOC imx FEC)
+ */
+#define CONFIG_FEC_MXC
+
+#define CONFIG_NET_MULTI
+#define CONFIG_FEC_MXC_PHYADDR		0x1f
+#define CONFIG_MII			1	/* MII PHY management	*/
+
+/*
+ * FPGA
+ */
+#define CONFIG_FPGA			CONFIG_SYS_SPARTAN3
+#define CONFIG_FPGA_COUNT		1
+#define CONFIG_FPGA_XILINX
+#define CONFIG_FPGA_SPARTAN3
+#define CONFIG_SYS_FPGA_WAIT		20000 /* 20 ms */
+#define CONFIG_SYS_FPGA_PROG_FEEDBACK
+#define CONFIG_SYS_FPGA_CHECK_CTRLC
+#define CONFIG_SYS_FPGA_CHECK_ERROR
+
+/*
+ * Fuses - IIM
+ */
+#ifdef CONFIG_CMD_IMX_FUSE
+#define IIM_MAC_BANK		0
+#define IIM_MAC_ROW		5
+#define IIM0_SCC_KEY		11
+#define IIM1_SUID		1
+#endif
+
+/*
+ * I2C
+ */
+#ifdef CONFIG_CMD_I2C
+#define	CONFIG_HARD_I2C			1
+
+#define CONFIG_SYS_I2C_SPEED		100000	/* 100 kHz */
+#define CONFIG_SYS_I2C_SLAVE		0x7F
+
+#define CONFIG_I2C_CMD_TREE
+#define CONFIG_I2C_MULTI_BUS		2
+#define CONFIG_SYS_I2C_NOPROBES		{ }
+
+#ifdef CONFIG_CMD_EEPROM
+# define CONFIG_SYS_I2C_EEPROM_ADDR	0x50	/* EEPROM 24LC02 */
+# define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1	/* bytes of address */
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	10	/* msec */
+#endif /* CONFIG_CMD_EEPROM */
+#endif /* CONFIG_CMD_I2C */
+
+/*
+ * SD/MMC
+ */
+#ifdef CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MXC_MMC
+#define CONFIG_MXC_MCI_REGS_BASE	0x10014000
+#endif
+
+/*
+ * RTC
+ */
+#ifdef CONFIG_CMD_DATE
+#define CONFIG_RTC_DS1374
+#define CONFIG_SYS_RTC_BUS_NUM		0
+#endif /* CONFIG_CMD_DATE */
+
+/*
+ * Clocks
+ */
+#define	CONFIG_SYS_HZ			1000	/* Ticks per second */
+
+/*
+ * PLL
+ *
+ *  31 | x  |x| x x x x |x x x x x x x x x x |x x|x x x x|x x x x x x x x x x| 0
+ *     |CPLM|X|----PD---|--------MFD---------|XXX|--MFI--|-----MFN-----------|
+ */
+#define CONFIG_MX27_CLK32		32768	/* 32768 or 32000 Hz crystal */
+#undef  CONFIG_MX27_CLK26		/* No external 26MHz external clock */
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
+/* micron 64MB */
+#define PHYS_SDRAM_1_SIZE			0x04000000 /* 64 MB */
+#define PHYS_SDRAM_2_SIZE			0x04000000 /* 64 MB */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 128)
+/* micron 128MB */
+#define PHYS_SDRAM_1_SIZE			0x08000000 /* 128 MB */
+#define PHYS_SDRAM_2_SIZE			0x08000000 /* 128 MB */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 256)
+/* micron 256MB */
+#define PHYS_SDRAM_1_SIZE			0x10000000 /* 256 MB */
+#define PHYS_SDRAM_2_SIZE			0x10000000 /* 256 MB */
+#endif
+
+#endif /* __CONFIG_H */