Patchwork [U-Boot,v8] dreamplug: initial board support.

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Submitter u-boot@lakedaemon.net
Date Sept. 18, 2011, 7:06 p.m.
Message ID <1316372795-25540-1-git-send-email-u-boot@lakedaemon.net>
Download mbox | patch
Permalink /patch/115270/
State Accepted
Commit 2e0c1c7d5cafb92f7bee9c8ac4b69f5bed075c67
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Comments

u-boot@lakedaemon.net - Sept. 18, 2011, 7:06 p.m.
Copied wholeheartedly from board/Marvell/guruplug and modified to add support
for SPI NOR flash.

CONFIG_MACH_DREAMPLUG defined in include/configs/dreamplug.h until Linus's
kernel.org tree adds it to mach-types.h.  Once it trickles down, the definition
can be removed from include/configs/dreamplug.h.

Signed-off-by: Jason Cooper <u-boot@lakedaemon.net>
---
Changes from v1 to v2:

        - resorted series to move 'make all' support last.

Changes from v2 to v3:

        - Use MACH_TYPE_GURUPLUG for now until dreamplug support is in
          Linux.
        - Update MAINTAINERS.
        - Collapse into one patch.

Changes from v3 to v4:

        - update copyright info as recommended by Prafulla Wadaskar.
        - maintain proper order in boards.cfg, MAINTAINERS, etc.
        - label MPP's
        - change back to MACH_TYPE_DREAMPLUG.  This patch is just RFC
          until the Dreamplug is supported in Linux (and MACH_TYPE_
	  added).

Changes from v4 to v5:

      - Complete rewrite due to receiving u-boot source indirectly
        from Global Scale Tech.
        - Added driver for integrated RTC. (thx GST!)
        - Added support for displaying CPU frequencies at boot. (thx
          GST!)
        - Adjust USB timeout to handle dreamplug EHCI chipset.
        - Cleaned up MPP registers based on Global Scale code. (thx
          GST!)
        - broke out MACH_TYPE_DREAMPLUG changes since it's going to be a
          while until the Linux arm tree gets sorted and accepts new
          boards again.  Since all Dreamplugs currently on the market
          set r1 to MACH_TYPE_GURUPLUG, this allows the board to be
          added to u-boot while waiting for Linux mainline.  Once it's
          in Linux mainline, then the last patch can be integrated to use
          MACH_TYPE_DREAMPLUG.

Changes from v5 to v6:

	- Define MACH_TYPE_DREAMPLUG in includes/configs/dreamplug.h until
	  Linus's kernel.org tree includes assigned machine id.  This is on
	  Wolfgang's recommendation [1].
	- Removed dcache disabling as it is no longer enabled by default.
	- USB timeout fix was merged.
	- Marvell Integrated RTC was merged.
	- Dropped CPU frequency printout as I'm not familiar enough with all
	  flavors of kirkwood SoCs to do it correctly.
	- Labelled MPP*_GPIO pins that are broken out as gpio pins for the
	  user.
	- Fixed function name mv_phy_88e1121_init() -> mv_phy_88e1116_init().

Changes from v6 to v7:

	- Use CONFIG_MACH_TYPE in dreamplug.c and define it to
	  MACH_TYPE_DREAMPLUG in include/configs/dreamplug.h

Changes from v7 to v8:

	- #error MACH_TYPE_DREAMPLUG once it is defined in mach-types.h.  On
	  Albert Aribaud's recommendation.

[1] http://www.mail-archive.com/u-boot@lists.denx.de/msg60921.html

 MAINTAINERS                                   |    4 +
 board/Marvell/dreamplug/Makefile              |   54 ++++++++
 board/Marvell/dreamplug/dreamplug.c           |  151 +++++++++++++++++++++++
 board/Marvell/dreamplug/dreamplug.h           |   42 +++++++
 board/Marvell/dreamplug/kwbimage.cfg          |  163 +++++++++++++++++++++++++
 boards.cfg                                    |    1 +
 include/configs/dreamplug.h                   |  151 +++++++++++++++++++++++
 7 files changed, 566 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/cpu/arm926ejs/kirkwood/asm-offsets.s
 create mode 100644 board/Marvell/dreamplug/Makefile
 create mode 100644 board/Marvell/dreamplug/dreamplug.c
 create mode 100644 board/Marvell/dreamplug/dreamplug.h
 create mode 100644 board/Marvell/dreamplug/kwbimage.cfg
 create mode 100644 include/configs/dreamplug.h
Prafulla Wadaskar - Oct. 3, 2011, 4:37 a.m.
> -----Original Message-----
> From: Jason Cooper [mailto:u-boot@lakedaemon.net]
> Sent: Monday, September 19, 2011 12:37 AM
> To: wd@denx.de
> Cc: u-boot@lists.denx.de; albert.u.boot@aribaud.net; Prafulla Wadaskar;
> u-boot@lakedaemon.net
> Subject: [PATCH v8] dreamplug: initial board support.
> 
> Copied wholeheartedly from board/Marvell/guruplug and modified to add
> support
> for SPI NOR flash.
> 
> CONFIG_MACH_DREAMPLUG defined in include/configs/dreamplug.h until
> Linus's
> kernel.org tree adds it to mach-types.h.  Once it trickles down, the
> definition
> can be removed from include/configs/dreamplug.h.
> 
> Signed-off-by: Jason Cooper <u-boot@lakedaemon.net>
> ---
> Changes from v1 to v2:
> 
>         - resorted series to move 'make all' support last.
> 
> Changes from v2 to v3:
> 
>         - Use MACH_TYPE_GURUPLUG for now until dreamplug support is in
>           Linux.
>         - Update MAINTAINERS.
>         - Collapse into one patch.
> 
> Changes from v3 to v4:
> 
>         - update copyright info as recommended by Prafulla Wadaskar.
>         - maintain proper order in boards.cfg, MAINTAINERS, etc.
>         - label MPP's
>         - change back to MACH_TYPE_DREAMPLUG.  This patch is just RFC
>           until the Dreamplug is supported in Linux (and MACH_TYPE_
> 	  added).
> 
> Changes from v4 to v5:
> 
>       - Complete rewrite due to receiving u-boot source indirectly
>         from Global Scale Tech.
>         - Added driver for integrated RTC. (thx GST!)
>         - Added support for displaying CPU frequencies at boot. (thx
>           GST!)
>         - Adjust USB timeout to handle dreamplug EHCI chipset.
>         - Cleaned up MPP registers based on Global Scale code. (thx
>           GST!)
>         - broke out MACH_TYPE_DREAMPLUG changes since it's going to be a
>           while until the Linux arm tree gets sorted and accepts new
>           boards again.  Since all Dreamplugs currently on the market
>           set r1 to MACH_TYPE_GURUPLUG, this allows the board to be
>           added to u-boot while waiting for Linux mainline.  Once it's
>           in Linux mainline, then the last patch can be integrated to
> use
>           MACH_TYPE_DREAMPLUG.
> 
> Changes from v5 to v6:
> 
> 	- Define MACH_TYPE_DREAMPLUG in includes/configs/dreamplug.h until
> 	  Linus's kernel.org tree includes assigned machine id.  This is on
> 	  Wolfgang's recommendation [1].
> 	- Removed dcache disabling as it is no longer enabled by default.
> 	- USB timeout fix was merged.
> 	- Marvell Integrated RTC was merged.
> 	- Dropped CPU frequency printout as I'm not familiar enough with all
> 	  flavors of kirkwood SoCs to do it correctly.
> 	- Labelled MPP*_GPIO pins that are broken out as gpio pins for the
> 	  user.
> 	- Fixed function name mv_phy_88e1121_init() ->
> mv_phy_88e1116_init().
> 
> Changes from v6 to v7:
> 
> 	- Use CONFIG_MACH_TYPE in dreamplug.c and define it to
> 	  MACH_TYPE_DREAMPLUG in include/configs/dreamplug.h
> 
> Changes from v7 to v8:
> 
> 	- #error MACH_TYPE_DREAMPLUG once it is defined in mach-types.h.  On
> 	  Albert Aribaud's recommendation.
> 
> [1] http://www.mail-archive.com/u-boot@lists.denx.de/msg60921.html
> 
>  MAINTAINERS                                   |    4 +
>  board/Marvell/dreamplug/Makefile              |   54 ++++++++
>  board/Marvell/dreamplug/dreamplug.c           |  151
> +++++++++++++++++++++++
>  board/Marvell/dreamplug/dreamplug.h           |   42 +++++++
>  board/Marvell/dreamplug/kwbimage.cfg          |  163
> +++++++++++++++++++++++++
>  boards.cfg                                    |    1 +
>  include/configs/dreamplug.h                   |  151
> +++++++++++++++++++++++
>  7 files changed, 566 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/cpu/arm926ejs/kirkwood/asm-offsets.s
>  create mode 100644 board/Marvell/dreamplug/Makefile
>  create mode 100644 board/Marvell/dreamplug/dreamplug.c
>  create mode 100644 board/Marvell/dreamplug/dreamplug.h
>  create mode 100644 board/Marvell/dreamplug/kwbimage.cfg
>  create mode 100644 include/configs/dreamplug.h
> 

Applied to u-boot-marvell.git master branch

Regards..
Prafulla . .

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 2f60a60..88d5637 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -70,6 +70,10 @@  Conn Clark <clark@esteem.com>
 
 	ESTEEM192E	MPC8xx
 
+Jason Cooper <u-boot@lakedaemon.net>
+
+	dreamplug	ARM926EJS (Kirkwood SoC)
+
 Joe D'Abbraccio <ljd015@freescale.com>
 
 	MPC837xERDB	MPC837x
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/asm-offsets.s b/arch/arm/cpu/arm926ejs/kirkwood/asm-offsets.s
new file mode 100644
index 0000000..e69de29
diff --git a/board/Marvell/dreamplug/Makefile b/board/Marvell/dreamplug/Makefile
new file mode 100644
index 0000000..9ee5406
--- /dev/null
+++ b/board/Marvell/dreamplug/Makefile
@@ -0,0 +1,54 @@ 
+#
+# (C) Copyright 2011
+# Jason Cooper <u-boot@lakedaemon.net>
+#
+# Based on work by:
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Siddarth Gore <gores@marvell.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+# GNU General Public License for more details.
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= dreamplug.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/Marvell/dreamplug/dreamplug.c b/board/Marvell/dreamplug/dreamplug.c
new file mode 100644
index 0000000..13b4013
--- /dev/null
+++ b/board/Marvell/dreamplug/dreamplug.c
@@ -0,0 +1,151 @@ 
+/*
+ * (C) Copyright 2011
+ * Jason Cooper <u-boot@lakedaemon.net>
+ *
+ * Based on work by:
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Siddarth Gore <gores@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <asm/arch/kirkwood.h>
+#include <asm/arch/mpp.h>
+#include "dreamplug.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	/*
+	 * default gpio configuration
+	 * There are maximum 64 gpios controlled through 2 sets of registers
+	 * the  below configuration configures mainly initial LED status
+	 */
+	kw_config_gpio(DREAMPLUG_OE_VAL_LOW,
+			DREAMPLUG_OE_VAL_HIGH,
+			DREAMPLUG_OE_LOW, DREAMPLUG_OE_HIGH);
+
+	/* Multi-Purpose Pins Functionality configuration */
+	u32 kwmpp_config[] = {
+		MPP0_SPI_SCn,		/* SPI Flash */
+		MPP1_SPI_MOSI,
+		MPP2_SPI_SCK,
+		MPP3_SPI_MISO,
+		MPP4_NF_IO6,
+		MPP5_NF_IO7,
+		MPP6_SYSRST_OUTn,
+		MPP7_GPO,
+		MPP8_TW_SDA,
+		MPP9_TW_SCK,
+		MPP10_UART0_TXD,	/* Serial */
+		MPP11_UART0_RXD,
+		MPP12_SD_CLK,		/* SDIO Slot */
+		MPP13_SD_CMD,
+		MPP14_SD_D0,
+		MPP15_SD_D1,
+		MPP16_SD_D2,
+		MPP17_SD_D3,
+		MPP18_NF_IO0,
+		MPP19_NF_IO1,
+		MPP20_GE1_0,		/* Gigabit Ethernet */
+		MPP21_GE1_1,
+		MPP22_GE1_2,
+		MPP23_GE1_3,
+		MPP24_GE1_4,
+		MPP25_GE1_5,
+		MPP26_GE1_6,
+		MPP27_GE1_7,
+		MPP28_GE1_8,
+		MPP29_GE1_9,
+		MPP30_GE1_10,
+		MPP31_GE1_11,
+		MPP32_GE1_12,
+		MPP33_GE1_13,
+		MPP34_GE1_14,
+		MPP35_GE1_15,
+		MPP36_GPIO,		/* 7 external GPIO pins (36 - 45) */
+		MPP37_GPIO,
+		MPP38_GPIO,
+		MPP39_GPIO,
+		MPP40_TDM_SPI_SCK,
+		MPP41_TDM_SPI_MISO,
+		MPP42_TDM_SPI_MOSI,
+		MPP43_GPIO,
+		MPP44_GPIO,
+		MPP45_GPIO,
+		MPP46_GPIO,
+		MPP47_GPIO,		/* Bluetooth LED */
+		MPP48_GPIO,		/* Wifi LED */
+		MPP49_GPIO,		/* Wifi AP LED */
+		0
+	};
+	kirkwood_mpp_conf(kwmpp_config);
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
+
+	return 0;
+}
+
+#ifdef CONFIG_RESET_PHY_R
+void mv_phy_88e1116_init(char *name)
+{
+	u16 reg;
+	u16 devadr;
+
+	if (miiphy_set_current_dev(name))
+		return;
+
+	/* command to read PHY dev address */
+	if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
+		printf("Err..%s could not read PHY dev address\n",
+			__func__);
+		return;
+	}
+
+	/*
+	 * Enable RGMII delay on Tx and Rx for CPU port
+	 * Ref: sec 4.7.2 of chip datasheet
+	 */
+	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
+	miiphy_read(name, devadr, MV88E1116_MAC_CTRL2_REG, &reg);
+	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
+	miiphy_write(name, devadr, MV88E1116_MAC_CTRL2_REG, reg);
+	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
+
+	/* reset the phy */
+	miiphy_reset(name, devadr);
+
+	printf("88E1116 Initialized on %s\n", name);
+}
+
+void reset_phy(void)
+{
+	/* configure and initialize both PHY's */
+	mv_phy_88e1116_init("egiga0");
+	mv_phy_88e1116_init("egiga1");
+}
+#endif /* CONFIG_RESET_PHY_R */
diff --git a/board/Marvell/dreamplug/dreamplug.h b/board/Marvell/dreamplug/dreamplug.h
new file mode 100644
index 0000000..ad5ffcf
--- /dev/null
+++ b/board/Marvell/dreamplug/dreamplug.h
@@ -0,0 +1,42 @@ 
+/*
+ * (C) Copyright 2011
+ * Jason Cooper <u-boot@lakedaemon.net>
+ *
+ * Based on work by:
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Siddarth Gore <gores@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef __DREAMPLUG_H
+#define __DREAMPLUG_H
+
+#define DREAMPLUG_OE_LOW	(~(0))
+#define DREAMPLUG_OE_HIGH	(~(0))
+#define DREAMPLUG_OE_VAL_LOW	0
+#define DREAMPLUG_OE_VAL_HIGH	(0xf << 16) /* 4 LED Pins high */
+
+/* PHY related */
+#define MV88E1116_MAC_CTRL2_REG		21
+#define MV88E1116_PGADR_REG		22
+#define MV88E1116_RGMII_TXTM_CTRL	(1 << 4)
+#define MV88E1116_RGMII_RXTM_CTRL	(1 << 5)
+
+#endif /* __DREAMPLUG_H */
diff --git a/board/Marvell/dreamplug/kwbimage.cfg b/board/Marvell/dreamplug/kwbimage.cfg
new file mode 100644
index 0000000..ca9cd74
--- /dev/null
+++ b/board/Marvell/dreamplug/kwbimage.cfg
@@ -0,0 +1,163 @@ 
+#
+# (C) Copyright 2011
+# Jason Cooper <u-boot@lakedaemon.net>
+#
+# Based on work by:
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Siddarth Gore <gores@marvell.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA
+#
+# Refer docs/README.kwimage for more details about how-to configure
+# and create kirkwood boot image
+#
+
+# Boot Media configurations
+BOOT_FROM	spi
+
+# SOC registers configuration using bootrom header extension
+# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
+
+# Configure RGMII-0/1 interface pad voltage to 1.8V
+DATA 0xFFD100e0 0x1b1b9b9b
+
+#Dram initalization for SINGLE x16 CL=5 @ 400MHz
+DATA 0xFFD01400 0x43000c30	# DDR Configuration register
+# bit13-0:  0xc30 (3120 DDR2 clks refresh rate)
+# bit23-14: zero
+# bit24: 1= enable exit self refresh mode on DDR access
+# bit25: 1 required
+# bit29-26: zero
+# bit31-30: 01
+
+DATA 0xFFD01404 0x37543000	# DDR Controller Control Low
+# bit 4:    0=addr/cmd in smame cycle
+# bit 5:    0=clk is driven during self refresh, we don't care for APX
+# bit 6:    0=use recommended falling edge of clk for addr/cmd
+# bit14:    0=input buffer always powered up
+# bit18:    1=cpu lock transaction enabled
+# bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
+# bit27-24: 7= CL+2, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
+# bit30-28: 3 required
+# bit31:    0=no additional STARTBURST delay
+
+DATA 0xFFD01408 0x22125451	# DDR Timing (Low) (active cycles value +1)
+# bit3-0:   TRAS lsbs
+# bit7-4:   TRCD
+# bit11- 8: TRP
+# bit15-12: TWR
+# bit19-16: TWTR
+# bit20:    TRAS msb
+# bit23-21: 0x0
+# bit27-24: TRRD
+# bit31-28: TRTP
+
+DATA 0xFFD0140C 0x00000a33	#  DDR Timing (High)
+# bit6-0:   TRFC
+# bit8-7:   TR2R
+# bit10-9:  TR2W
+# bit12-11: TW2W
+# bit31-13: zero required
+
+DATA 0xFFD01410 0x000000cc	#  DDR Address Control
+# bit1-0:   01, Cs0width=x8
+# bit3-2:   10, Cs0size=1Gb
+# bit5-4:   01, Cs1width=x8
+# bit7-6:   10, Cs1size=1Gb
+# bit9-8:   00, Cs2width=nonexistent
+# bit11-10: 00, Cs2size =nonexistent
+# bit13-12: 00, Cs3width=nonexistent
+# bit15-14: 00, Cs3size =nonexistent
+# bit16:    0,  Cs0AddrSel
+# bit17:    0,  Cs1AddrSel
+# bit18:    0,  Cs2AddrSel
+# bit19:    0,  Cs3AddrSel
+# bit31-20: 0 required
+
+DATA 0xFFD01414 0x00000000	#  DDR Open Pages Control
+# bit0:    0,  OpenPage enabled
+# bit31-1: 0 required
+
+DATA 0xFFD01418 0x00000000	#  DDR Operation
+# bit3-0:   0x0, DDR cmd
+# bit31-4:  0 required
+
+DATA 0xFFD0141C 0x00000C52	#  DDR Mode
+# bit2-0:   2, BurstLen=2 required
+# bit3:     0, BurstType=0 required
+# bit6-4:   4, CL=5
+# bit7:     0, TestMode=0 normal
+# bit8:     0, DLL reset=0 normal
+# bit11-9:  6, auto-precharge write recovery ????????????
+# bit12:    0, PD must be zero
+# bit31-13: 0 required
+
+DATA 0xFFD01420 0x00000040	#  DDR Extended Mode
+# bit0:    0,  DDR DLL enabled
+# bit1:    0,  DDR drive strenght normal
+# bit2:    0,  DDR ODT control lsd (disabled)
+# bit5-3:  000, required
+# bit6:    1,  DDR ODT control msb, (disabled)
+# bit9-7:  000, required
+# bit10:   0,  differential DQS enabled
+# bit11:   0, required
+# bit12:   0, DDR output buffer enabled
+# bit31-13: 0 required
+
+DATA 0xFFD01424 0x0000F17F	#  DDR Controller Control High
+# bit2-0:  111, required
+# bit3  :  1  , MBUS Burst Chop disabled
+# bit6-4:  111, required
+# bit7  :  0
+# bit8  :  1  , add writepath sample stage, must be 1 for DDR freq >= 300MHz
+# bit9  :  0  , no half clock cycle addition to dataout
+# bit10 :  0  , 1/4 clock cycle skew enabled for addr/ctl signals
+# bit11 :  0  , 1/4 clock cycle skew disabled for write mesh
+# bit15-12: 1111 required
+# bit31-16: 0    required
+
+DATA 0xFFD01428 0x00085520	# DDR2 ODT Read Timing (default values)
+DATA 0xFFD0147C 0x00008552	# DDR2 ODT Write Timing (default values)
+
+DATA 0xFFD01500 0x00000000	# CS[0]n Base address to 0x0
+DATA 0xFFD01504 0x0FFFFFF1	# CS[0]n Size
+# bit0:    1,  Window enabled
+# bit1:    0,  Write Protect disabled
+# bit3-2:  00, CS0 hit selected
+# bit23-4: ones, required
+# bit31-24: 0x0F, Size (i.e. 256MB)
+
+DATA 0xFFD01508 0x10000000	# CS[1]n Base address to 256Mb
+DATA 0xFFD0150C 0x0FFFFFF5	# CS[1]n Size 256Mb Window enabled for CS1
+
+DATA 0xFFD01514 0x00000000	# CS[2]n Size, window disabled
+DATA 0xFFD0151C 0x00000000	# CS[3]n Size, window disabled
+
+DATA 0xFFD01494 0x00030000	#  DDR ODT Control (Low)
+DATA 0xFFD01498 0x00000000	#  DDR ODT Control (High)
+# bit1-0:  00, ODT0 controlled by ODT Control (low) register above
+# bit3-2:  01, ODT1 active NEVER!
+# bit31-4: zero, required
+
+DATA 0xFFD0149C 0x0000E803	# CPU ODT Control
+DATA 0xFFD01480 0x00000001	# DDR Initialization Control
+#bit0=1, enable DDR init upon this register write
+
+# End of Header extension
+DATA 0x0 0x0
diff --git a/boards.cfg b/boards.cfg
index 8a5bfc1..cceda57 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -135,6 +135,7 @@  portl2                       arm         arm926ejs   km_arm              keymile
 inetspace_v2                 arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:INETSPACE_V2
 netspace_v2                  arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:NETSPACE_V2
 netspace_max_v2              arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:NETSPACE_MAX_V2
+dreamplug                    arm         arm926ejs   -                   Marvell        kirkwood
 guruplug                     arm         arm926ejs   -                   Marvell        kirkwood
 mv88f6281gtw_ge              arm         arm926ejs   -                   Marvell        kirkwood
 openrd_base                  arm         arm926ejs   openrd              Marvell        kirkwood        openrd:BOARD_IS_OPENRD_BASE
diff --git a/include/configs/dreamplug.h b/include/configs/dreamplug.h
new file mode 100644
index 0000000..0f2f9a2
--- /dev/null
+++ b/include/configs/dreamplug.h
@@ -0,0 +1,151 @@ 
+/*
+ * (C) Copyright 2011
+ * Jason Cooper <u-boot@lakedaemon.net>
+ *
+ * Based on work by:
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Siddarth Gore <gores@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef _CONFIG_DREAMPLUG_H
+#define _CONFIG_DREAMPLUG_H
+
+/*
+ * FIXME: This belongs in mach-types.h.  However, we only pull mach-types
+ * from Linus' kernel.org tree.  This hasn't been updated primarily due to
+ * the recent arch/arm reshuffling.  So, in the meantime, we'll place it
+ * here.
+ */
+#include <asm/mach-types.h>
+#ifdef MACH_TYPE_DREAMPLUG
+#error "MACH_TYPE_DREAMPLUG has been defined properly, please remove this."
+#else
+#define MACH_TYPE_DREAMPLUG            3550
+#endif
+
+/*
+ * Version number information
+ */
+#define CONFIG_IDENT_STRING	"\nMarvell-DreamPlug"
+
+/*
+ * High Level Configuration Options (easy to change)
+ */
+#define CONFIG_SHEEVA_88SV131	1	/* CPU Core subversion */
+#define CONFIG_KIRKWOOD		1	/* SOC Family Name */
+#define CONFIG_KW88F6281	1	/* SOC Name */
+#define CONFIG_MACH_TYPE	MACH_TYPE_DREAMPLUG
+#define CONFIG_SKIP_LOWLEVEL_INIT	/* disable board lowlevel_init */
+
+/*
+ * Commands configuration
+ */
+#define CONFIG_SYS_NO_FLASH		/* Declare no flash (NOR/SPI) */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_SF
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_USB
+#define CONFIG_CMD_IDE
+#define CONFIG_CMD_DATE
+
+/*
+ * mv-common.h should be defined after CMD configs since it used them
+ * to enable certain macros
+ */
+#include "mv-common.h"
+
+/*
+ *  Environment variables configurations
+ */
+#ifdef CONFIG_SPI_FLASH
+#define CONFIG_ENV_IS_IN_SPI_FLASH	1
+#define CONFIG_ENV_SECT_SIZE		0x10000	/* 64k */
+#else
+#define CONFIG_ENV_IS_NOWHERE		1	/* if env in SDRAM */
+#endif
+
+#ifdef CONFIG_CMD_SF
+#define CONFIG_SPI_FLASH		1
+#define CONFIG_HARD_SPI			1
+#define CONFIG_KIRKWOOD_SPI		1
+#define CONFIG_SPI_FLASH_MACRONIX	1
+#define CONFIG_ENV_SPI_BUS		0
+#define CONFIG_ENV_SPI_CS		0
+#define CONFIG_ENV_SPI_MAX_HZ		50000000 /* 50 MHz */
+#endif
+
+/*
+ * max 4k env size is enough, but in case of nand
+ * it has to be rounded to sector size
+ */
+#define CONFIG_ENV_SIZE			0x1000  /* 4k */
+#define CONFIG_ENV_ADDR			0x100000
+#define CONFIG_ENV_OFFSET		0x100000 /* env starts here */
+
+/*
+ * Default environment variables
+ */
+#define CONFIG_BOOTCOMMAND		"setenv ethact egiga0; " \
+	"${x_bootcmd_ethernet}; setenv ethact egiga1; " \
+	"${x_bootcmd_ethernet}; ${x_bootcmd_usb}; ${x_bootcmd_kernel}; "\
+	"setenv bootargs ${x_bootargs} ${x_bootargs_root}; "	\
+	"bootm 0x6400000;"
+
+#define CONFIG_EXTRA_ENV_SETTINGS	\
+	"x_bootcmd_ethernet=ping 192.168.2.1\0"	\
+	"x_bootcmd_usb=usb start\0"	\
+	"x_bootcmd_kernel=fatload usb 0 0x6400000 uImage\0" \
+	"x_bootargs=console=ttyS0,115200\0"	\
+	"x_bootargs_root=root=/dev/sda2 rootdelay=10\0"
+
+/*
+ * Ethernet Driver configuration
+ */
+#ifdef CONFIG_CMD_NET
+#define CONFIG_MVGBE_PORTS	{1, 1}	/* enable both ports */
+#define CONFIG_PHY_BASE_ADR	0
+#endif /* CONFIG_CMD_NET */
+
+/*
+ * SATA Driver configuration
+ */
+#ifdef CONFIG_MVSATA_IDE
+#define CONFIG_SYS_ATA_IDE0_OFFSET	MV_SATA_PORT0_OFFSET
+#endif /*CONFIG_MVSATA_IDE*/
+
+/*
+ * RTC driver configuration
+ */
+#ifdef CONFIG_CMD_DATE
+#define CONFIG_RTC_MV
+#endif /* CONFIG_CMD_DATE */
+
+#define CONFIG_SYS_ALT_MEMTEST
+
+/*
+ * display enhanced info about the cpu at boot.
+ */
+#define CONFIG_DISPLAY_CPUINFO
+
+#endif /* _CONFIG_DREAMPLUG_H */