Added support for KwikByte KB920x boards (based on AT91RM9200)

Patch by Matt ?? <kb9200_dev@kwikbyte.com>, 27 Apr 2005

11 files changed, 570 insertions, 9 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 3303bb7322..98a15159b8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* Added support for KwikByte KB920x boards (based on AT91RM9200)
+  Patch by Matt ?? <kb9200_dev@kwikbyte.com>, 27 Apr 2005
+
 * Add support for S29GL064M-R3 flash chip on xsengine board
   Patch by Kurt Stremerch, 18 Apr 2005
 
diff --git a/MAKEALL b/MAKEALL
index ba6025143f..1328d8a044 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -179,10 +179,10 @@ LIST_ARM9="	\
 	integratorcp_CM920T_ETM		integratorcp_CM922T_XA10	\
 	integratorcp_CM926EJ_S		integratorcp_CM940T		\
 	integratorcp_CM946E_S		integratorcp_CM966E_S		\
-	lpd7a400	mp2usb		mx1ads		mx1fs2		\
-	omap1510inn	omap1610h2	omap1610inn	omap730p2	\
-	scb9328		smdk2400	smdk2410	trab		\
-	VCMA9		versatile	voiceblue			\
+	kb9202		lpd7a400	mp2usb		mx1ads		\
+	mx1fs2		omap1510inn	omap1610h2	omap1610inn	\
+	omap730p2	scb9328		smdk2400	smdk2410	\
+	trab		VCMA9		versatile	voiceblue	\
 "
 
 #########################################################################
diff --git a/Makefile b/Makefile
index 12c186b49f..87bc949d64 100644
--- a/Makefile
+++ b/Makefile
@@ -1566,6 +1566,9 @@ integratorcp_CM1136JF_S_config	:	unconfig
 	./mkconfig -a $(call xtract_int_board,cp,$@) arm $$cpu 		\
 	              $(call xtract_int_board,cp,$@);
 
+kb9202_config	:	unconfig
+	@./mkconfig $(@:_config=) arm arm920t kb9202 NULL at91rm9200
+
 lpd7a400_config \
 lpd7a404_config:	unconfig
 	@./mkconfig $(@:_config=) arm lh7a40x lpd7a40x
diff --git a/README b/README
index ce5ad4c95f..81197dc207 100644
--- a/README
+++ b/README
@@ -305,10 +305,11 @@ The following options need to be configured:
 		CONFIG_ARMADILLO,	CONFIG_AT91RM9200DK,	CONFIG_CERF250,
 		CONFIG_DNP1110, 	CONFIG_EP7312,		CONFIG_H2_OMAP1610,
 		CONFIG_HHP_CRADLE,	CONFIG_IMPA7,		CONFIG_INNOVATOROMAP1510,
-		CONFIG_INNOVATOROMAP1610, CONFIG_LART,		CONFIG_LPD7A400,
-		CONFIG_LUBBOCK,		CONFIG_OSK_OMAP5912,	CONFIG_OMAP2420H4,
-		CONFIG_SHANNON,		CONFIG_P2_OMAP730,	CONFIG_SMDK2400,
-		CONFIG_SMDK2410,	CONFIG_TRAB,		CONFIG_VCMA9
+		CONFIG_INNOVATOROMAP1610, CONFIG_KB9202,	CONFIG_LART,
+		CONFIG_LPD7A400,	CONFIG_LUBBOCK,		CONFIG_OSK_OMAP5912,
+		CONFIG_OMAP2420H4,	CONFIG_SHANNON,		CONFIG_P2_OMAP730,
+		CONFIG_SMDK2400,	CONFIG_SMDK2410,	CONFIG_TRAB,
+		CONFIG_VCMA9
 
 		MicroBlaze based boards:
 		------------------------
diff --git a/board/kb9202/Makefile b/board/kb9202/Makefile
new file mode 100644
index 0000000000..a62d84921c
--- /dev/null
+++ b/board/kb9202/Makefile
@@ -0,0 +1,49 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd@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
+#
+# Adapted for KwikByte KB920x boards - APR2005
+#
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= kb9202.o lxt972.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/kb9202/config.mk b/board/kb9202/config.mk
new file mode 100644
index 0000000000..9ce161e55f
--- /dev/null
+++ b/board/kb9202/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x21f00000
diff --git a/board/kb9202/kb9202.c b/board/kb9202/kb9202.c
new file mode 100644
index 0000000000..bab642657b
--- /dev/null
+++ b/board/kb9202/kb9202.c
@@ -0,0 +1,66 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.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
+ */
+
+/*
+ * Adatped for KwikByte KB920x board from at91rm9200dk.c: 22APR2005
+ */
+
+#include <common.h>
+#include <asm/arch/AT91RM9200.h>
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+void lowlevel_init(void) {
+	/* Required by assembly functions - do nothing	*/
+}
+
+int board_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* Enable Ctrlc */
+	console_init_f ();
+
+	/* memory and cpu-speed are setup before relocation */
+	/* so we do _nothing_ here */
+
+	gd->bd->bi_arch_number = MACH_TYPE_KB9200;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	return 0;
+}
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+	return 0;
+}
diff --git a/board/kb9202/lxt972.c b/board/kb9202/lxt972.c
new file mode 100644
index 0000000000..2baddbdd3e
--- /dev/null
+++ b/board/kb9202/lxt972.c
@@ -0,0 +1,209 @@
+/*
+ *
+ * (C) Copyright 2003
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * 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
+ */
+
+/*
+ * Adatped for KwikByte KB920x board: 22APR2005
+ */
+
+#include <at91rm9200_net.h>
+#include <net.h>
+#include <lxt971a.h>
+
+#ifdef CONFIG_DRIVER_ETHER
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+/*
+ * Name:
+ *	lxt972_IsPhyConnected
+ * Description:
+ *	Reads the 2 PHY ID registers
+ * Arguments:
+ *	p_mac - pointer to AT91S_EMAC struct
+ * Return value:
+ *	TRUE - if id read successfully
+ *	FALSE- if error
+ */
+static unsigned int lxt972_IsPhyConnected (AT91PS_EMAC p_mac)
+{
+	unsigned short Id1, Id2;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+	at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_ID1, &Id1);
+	at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_ID2, &Id2);
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	if ((Id1 == (0x0013)) && ((Id2  & 0xFFF0) == 0x78E0))
+		return TRUE;
+
+	return FALSE;
+}
+
+/*
+ * Name:
+ *	lxt972_GetLinkSpeed
+ * Description:
+ *	Link parallel detection status of MAC is checked and set in the
+ *	MAC configuration registers
+ * Arguments:
+ *	p_mac - pointer to MAC
+ * Return value:
+ *	TRUE - if link status set succesfully
+ *	FALSE - if link status not set
+ */
+static UCHAR lxt972_GetLinkSpeed (AT91PS_EMAC p_mac)
+{
+	unsigned short stat1;
+
+	if (!at91rm9200_EmacReadPhy (p_mac, PHY_LXT971_STAT2, &stat1))
+		return FALSE;
+
+	if (!(stat1 & PHY_LXT971_STAT2_LINK))	/* link status up? */
+		return FALSE;
+
+	if (stat1 & PHY_LXT971_STAT2_100BTX) {
+
+		if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) {
+
+			/*set Emac for 100BaseTX and Full Duplex  */
+			p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+		} else {
+
+			/*set Emac for 100BaseTX and Half Duplex  */
+			p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+					~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+					| AT91C_EMAC_SPD;
+		}
+
+		return TRUE;
+
+	} else {
+
+		if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) {
+
+			/*set MII for 10BaseT and Full Duplex  */
+			p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+					~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+					| AT91C_EMAC_FD;
+		} else {
+
+			/*set MII for 10BaseT and Half Duplex  */
+			p_mac->EMAC_CFG &= ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
+		}
+
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+
+/*
+ * Name:
+ *	lxt972_InitPhy
+ * Description:
+ *	MAC starts checking its link by using parallel detection and
+ *	Autonegotiation and the same is set in the MAC configuration registers
+ * Arguments:
+ *	p_mac - pointer to struct AT91S_EMAC
+ * Return value:
+ *	TRUE - if link status set succesfully
+ *	FALSE - if link status not set
+ */
+static UCHAR lxt972_InitPhy (AT91PS_EMAC p_mac)
+{
+	UCHAR ret = TRUE;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+
+	if (!lxt972_GetLinkSpeed (p_mac)) {
+		/* Try another time */
+		ret = lxt972_GetLinkSpeed (p_mac);
+	}
+
+	/* Disable PHY Interrupts */
+	at91rm9200_EmacWritePhy (p_mac, PHY_LXT971_INT_ENABLE, 0);
+
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	return (ret);
+}
+
+
+/*
+ * Name:
+ *	lxt972_AutoNegotiate
+ * Description:
+ *	MAC Autonegotiates with the partner status of same is set in the
+ *	MAC configuration registers
+ * Arguments:
+ *	dev - pointer to struct net_device
+ * Return value:
+ *	TRUE - if link status set successfully
+ *	FALSE - if link status not set
+ */
+static UCHAR lxt972_AutoNegotiate (AT91PS_EMAC p_mac, int *status)
+{
+	unsigned short value;
+
+	/* Set lxt972 control register */
+	if (!at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_CTRL, &value))
+		return FALSE;
+
+	/* Restart Auto_negotiation  */
+	value |= PHY_COMMON_CTRL_RES_AUTO;
+	if (!at91rm9200_EmacWritePhy (p_mac, PHY_COMMON_CTRL, &value))
+		return FALSE;
+
+	/*check AutoNegotiate complete */
+	udelay (10000);
+	at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_STAT, &value);
+	if (!(value & PHY_COMMON_STAT_AN_COMP))
+		return FALSE;
+
+	return (lxt972_GetLinkSpeed (p_mac));
+}
+
+
+/*
+ * Name:
+ *	at91rm92000_GetPhyInterface
+ * Description:
+ *	Initialise the interface functions to the PHY
+ * Arguments:
+ *	None
+ * Return value:
+ *	None
+ */
+void at91rm92000_GetPhyInterface(AT91PS_PhyOps p_phyops)
+{
+	p_phyops->Init = lxt972_InitPhy;
+	p_phyops->IsPhyConnected = lxt972_IsPhyConnected;
+	p_phyops->GetLinkSpeed = lxt972_GetLinkSpeed;
+	p_phyops->AutoNegotiate = lxt972_AutoNegotiate;
+}
+
+#endif	/* CONFIG_COMMANDS & CFG_CMD_NET */
+
+#endif	/* CONFIG_DRIVER_ETHER */
diff --git a/board/kb9202/u-boot.lds b/board/kb9202/u-boot.lds
new file mode 100644
index 0000000000..76df6b2af1
--- /dev/null
+++ b/board/kb9202/u-boot.lds
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@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_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  cpu/arm920t/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}
diff --git a/cpu/mpc85xx/start.S b/cpu/mpc85xx/start.S
index 2f2bd3ad52..7ac65736bc 100644
--- a/cpu/mpc85xx/start.S
+++ b/cpu/mpc85xx/start.S
@@ -999,7 +999,7 @@ relocate_code:
 	 * Re-point the IVPR at RAM
 	 */
 	mtspr	IVPR,r10
-	
+
 /*
  * We are done. Do not return, instead branch to second part of board
  * initialization, now running from RAM.
diff --git a/include/configs/kb9202.h b/include/configs/kb9202.h
new file mode 100644
index 0000000000..a5302429c6
--- /dev/null
+++ b/include/configs/kb9202.h
@@ -0,0 +1,173 @@
+/*
+ * Rick Bronson <rick@efn.org>
+ *
+ * Configuation settings for the AT91RM9200DK board.
+ *
+ * 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
+ */
+
+/*
+ * Adatped for KwikByte KB920x board from at91rm9200dk.h: 22APR2005
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* ARM asynchronous clock */
+#define AT91C_MAIN_CLOCK	180000000	/* from 10 MHz crystal */
+#define AT91C_MASTER_CLOCK	60000000	/* peripheral clock (AT91C_MASTER_CLOCK / 3) */
+
+#define AT91_SLOW_CLOCK		32768	/* slow clock */
+
+#define CONFIG_ARM920T		1	/* This is an ARM920T Core	*/
+#define CONFIG_AT91RM9200	1	/* It's an Atmel AT91RM9200 SoC	*/
+/* Only define one of the following, based on board type		*/
+/* #define	CONFIG_KB9200		1	 KwikByte KB9202 board	*/
+/* #define	CONFIG_KB9201		1	 KwikByte KB9202 board	*/
+#define	CONFIG_KB9202		1	/* KwikByte KB9202 board	*/
+
+#define	CONFIG_KB920x		1	/* Any KB920x board		*/
+#undef  CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
+#define USE_920T_MMU		1
+
+#define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	1
+
+#define	CONFIG_SKIP_LOWLEVEL_INIT
+
+#define	CFG_LONGHELP
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN	(CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+#define CONFIG_BAUDRATE 115200
+
+/*
+ * Hardware drivers
+ */
+
+/* define one of these to choose the DBGU, USART0  or USART1 as console */
+#define CONFIG_DBGU
+#undef CONFIG_USART0
+#undef CONFIG_USART1
+
+#undef	CONFIG_HWFLOW			/* don't include RTS/CTS flow control support	*/
+
+#undef	CONFIG_MODEM_SUPPORT		/* disable modem initialization stuff */
+
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_ENV_OVERWRITE	1
+
+#define CONFIG_COMMANDS		\
+		       ((CONFIG_CMD_DFL | \
+		        CFG_CMD_I2C | \
+			CFG_CMD_PING | \
+			CFG_CMD_DHCP ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC))
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM 0x20000000
+#define PHYS_SDRAM_SIZE 0x2000000  /* 32 megs */
+
+#define CFG_MEMTEST_START		PHYS_SDRAM
+#define CFG_MEMTEST_END			CFG_MEMTEST_START + PHYS_SDRAM_SIZE - (512*1024)
+
+#define CONFIG_DRIVER_ETHER
+#define CONFIG_NET_RETRY_COUNT		20
+
+#define CFG_FLASH_BASE			0x10000000
+
+#ifdef CONFIG_KB9202
+#define PHYS_FLASH_SIZE			0x1000000
+#else
+#define PHYS_FLASH_SIZE			0x200000
+#endif
+
+#define CFG_MAX_FLASH_BANKS		1
+#define CFG_MAX_FLASH_SECT		256
+
+#define	CONFIG_HARD_I2C
+
+#define	CFG_ENV_IS_IN_EEPROM
+
+#ifdef CONFIG_KB9202
+#define CFG_ENV_OFFSET			0x3000
+#define CFG_ENV_SIZE			0x1000
+#else
+#define CFG_ENV_OFFSET			0x1000
+#define CFG_ENV_SIZE			0x1000
+#endif
+#define	CFG_I2C_EEPROM_ADDR		0x50
+#define	CFG_EEPROM_PAGE_WRITE_BITS	6
+#define	CFG_I2C_EEPROM_ADDR_LEN		2
+#define	CFG_I2C_SPEED			50000
+#define	CFG_I2C_SLAVE			0 /* not used */
+#define	CFG_EEPROM_PAGE_WRITE_DELAY_MS	10
+
+#define CFG_LOAD_ADDR		0x21000000  /* default load address */
+
+#define CFG_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CFG_PROMPT		"U-Boot> "	/* Monitor Command Prompt */
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size */
+#define CFG_MAXARGS		16		/* max number of command args */
+#define CFG_PBSIZE		(CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+
+#define	CFG_FLASH_CFI_DRIVER
+#define	CFG_FLASH_CFI
+
+#ifndef __ASSEMBLY__
+/*-----------------------------------------------------------------------
+ * Board specific extension for bd_info
+ *
+ * This structure is embedded in the global bd_info (bd_t) structure
+ * and can be used by the board specific code (eg board/...)
+ */
+
+struct bd_info_ext {
+	/* helper variable for board environment handling
+	 *
+	 * env_crc_valid == 0    =>   uninitialised
+	 * env_crc_valid  > 0    =>   environment crc in flash is valid
+	 * env_crc_valid  < 0    =>   environment crc in flash is invalid
+	 */
+	int env_crc_valid;
+};
+#endif
+
+#define CFG_HZ 1000
+#define CFG_HZ_CLOCK AT91C_MASTER_CLOCK/2	/* AT91C_TC0_CMR is implicitly set to */
+					/* AT91C_TC_TIMER_DIV1_CLOCK */
+
+#define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif