Add support for Cogent csb637

Patch by Anders Larsen, 29 Apr 2005

11 files changed, 766 insertions, 2 deletions

diff --git a/CHANGELOG b/CHANGELOG
index af39df8..53afe66 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* Add support for Cogent csb637
+  Patch by Anders Larsen, 29 Apr 2005
+
 * Fix dm9161.c initialization
   Patch by Anders Larsen, 29 Apr 2005
 
diff --git a/MAKEALL b/MAKEALL
index 1328d8a..7235b70 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -171,7 +171,7 @@ LIST_ARM7="	\
 #########################################################################
 
 LIST_ARM9="	\
-	at91rm9200dk	cmc_pu2						\
+	at91rm9200dk	cmc_pu2		csb637				\
 	integratorap_CM920T		integratorap_CM920T_ETM		\
 	integratorap_CM922T_XA10	integratorap_CM926EJ_S		\
 	integratorap_CM940T		integratorap_CM946E_S		\
diff --git a/Makefile b/Makefile
index 87bc949..c41e8f5 100644
--- a/Makefile
+++ b/Makefile
@@ -1390,6 +1390,9 @@ at91rm9200dk_config	:	unconfig
 cmc_pu2_config	:	unconfig
 	@./mkconfig $(@:_config=) arm arm920t cmc_pu2 NULL at91rm9200
 
+csb637_config	:	unconfig
+	@./mkconfig $(@:_config=) arm arm920t csb637 NULL at91rm9200
+
 mp2usb_config	:	unconfig
 	@./mkconfig $(@:_config=) arm arm920t mp2usb NULL at91rm9200
 
diff --git a/board/csb637/Makefile b/board/csb637/Makefile
new file mode 100644
index 0000000..61d5a35
--- /dev/null
+++ b/board/csb637/Makefile
@@ -0,0 +1,46 @@
+#
+# (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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= csb637.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/csb637/config.mk b/board/csb637/config.mk
new file mode 100644
index 0000000..7e1457d
--- /dev/null
+++ b/board/csb637/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x23fe0000
diff --git a/board/csb637/csb637.c b/board/csb637/csb637.c
new file mode 100644
index 0000000..2356d23
--- /dev/null
+++ b/board/csb637/csb637.c
@@ -0,0 +1,83 @@
+/*
+ * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
+ * Anders Larsen <alarsen@rea.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
+ */
+
+#include <common.h>
+#include <asm/arch/AT91RM9200.h>
+#include <at91rm9200_net.h>
+#include <bcm5221.h>
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+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 */
+
+	/* arch number of AT91RM9200DK-Board */
+	gd->bd->bi_arch_number = MACH_TYPE_AT91RM9200;
+	/* 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;
+}
+
+#ifdef CONFIG_DRIVER_ETHER
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+/*
+ * Name:
+ *	at91rm9200_GetPhyInterface
+ * Description:
+ *	Initialise the interface functions to the PHY
+ * Arguments:
+ *	None
+ * Return value:
+ *	None
+ */
+void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops)
+{
+	p_phyops->Init		 = bcm5221_InitPhy;
+	p_phyops->IsPhyConnected = bcm5221_IsPhyConnected;
+	p_phyops->GetLinkSpeed	 = bcm5221_GetLinkSpeed;
+	p_phyops->AutoNegotiate	 = bcm5221_AutoNegotiate;
+}
+
+#endif	/* CONFIG_COMMANDS & CFG_CMD_NET */
+#endif	/* CONFIG_DRIVER_ETHER */
diff --git a/board/csb637/u-boot.lds b/board/csb637/u-boot.lds
new file mode 100644
index 0000000..76df6b2
--- /dev/null
+++ b/board/csb637/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/arm920t/at91rm9200/Makefile b/cpu/arm920t/at91rm9200/Makefile
index b063025..aec9cb6 100644
--- a/cpu/arm920t/at91rm9200/Makefile
+++ b/cpu/arm920t/at91rm9200/Makefile
@@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk
 
 LIB	= lib$(SOC).a
 
-OBJS	= dm9161.o ether.o i2c.o interrupts.o lxt972.o serial.o usb_ohci.o
+OBJS	= bcm5221.o dm9161.o ether.o i2c.o interrupts.o \
+	  lxt972.o serial.o usb_ohci.o
 SOBJS	= lowlevel_init.o
 
 all:	.depend $(LIB)
diff --git a/cpu/arm920t/at91rm9200/bcm5221.c b/cpu/arm920t/at91rm9200/bcm5221.c
new file mode 100644
index 0000000..6db1435
--- /dev/null
+++ b/cpu/arm920t/at91rm9200/bcm5221.c
@@ -0,0 +1,232 @@
+/*
+ * Broadcom BCM5221 Ethernet PHY
+ *
+ * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
+ * Anders Larsen <alarsen@rea.de>
+ *
+ * (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
+ */
+
+#include <at91rm9200_net.h>
+#include <net.h>
+#include <bcm5221.h>
+
+#ifdef CONFIG_DRIVER_ETHER
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+/*
+ * Name:
+ *	bcm5221_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
+ */
+unsigned int bcm5221_IsPhyConnected (AT91PS_EMAC p_mac)
+{
+	unsigned short Id1, Id2;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+	at91rm9200_EmacReadPhy (p_mac, BCM5221_PHYID1, &Id1);
+	at91rm9200_EmacReadPhy (p_mac, BCM5221_PHYID2, &Id2);
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	if ((Id1 == (BCM5221_PHYID1_OUI >> 6)) &&
+		((Id2 >> 10) == (BCM5221_PHYID1_OUI & BCM5221_LSB_MASK)))
+		return TRUE;
+
+	return FALSE;
+}
+
+/*
+ * Name:
+ *	bcm5221_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
+ */
+unsigned char bcm5221_GetLinkSpeed (AT91PS_EMAC p_mac)
+{
+	unsigned short stat1, stat2;
+
+	if (!at91rm9200_EmacReadPhy (p_mac, BCM5221_BMSR, &stat1))
+		return FALSE;
+
+	if (!(stat1 & BCM5221_LINK_STATUS))	/* link status up? */
+		return FALSE;
+
+	if (!at91rm9200_EmacReadPhy (p_mac, BCM5221_ACSR, &stat2))
+		return FALSE;
+
+	if ((stat1 & BCM5221_100BASE_TX_FD) && (stat2 & BCM5221_100) && (stat2 & BCM5221_FDX)) {
+		/*set Emac for 100BaseTX and Full Duplex  */
+		p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((stat1 & BCM5221_10BASE_T_FD) && !(stat2 & BCM5221_100) && (stat2 & BCM5221_FDX)) {
+		/*set MII for 10BaseT and Full Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((stat1 & BCM5221_100BASE_TX_HD) && (stat2 & BCM5221_100) && !(stat2 & BCM5221_FDX)) {
+		/*set MII for 100BaseTX and Half Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_SPD;
+		return TRUE;
+	}
+
+	if ((stat1 & BCM5221_10BASE_T_HD) && !(stat2 & BCM5221_100) && !(stat2 & BCM5221_FDX)) {
+		/*set MII for 10BaseT and Half Duplex  */
+		p_mac->EMAC_CFG &= ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
+		return TRUE;
+	}
+	return FALSE;
+}
+
+
+/*
+ * Name:
+ *	bcm5221_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
+ */
+unsigned char bcm5221_InitPhy (AT91PS_EMAC p_mac)
+{
+	unsigned char ret = TRUE;
+	unsigned short IntValue;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+
+	if (!bcm5221_GetLinkSpeed (p_mac)) {
+		/* Try another time */
+		ret = bcm5221_GetLinkSpeed (p_mac);
+	}
+
+	/* Disable PHY Interrupts */
+	at91rm9200_EmacReadPhy (p_mac, BCM5221_INTR, &IntValue);
+	/* clear FDX LED and INTR Enable */
+	IntValue &= ~(BCM5221_FDX_LED | BCM5221_INTR_ENABLE);
+	/* set FDX, SPD, Link, INTR masks */
+	IntValue |= (BCM5221_FDX_MASK  | BCM5221_SPD_MASK |
+		     BCM5221_LINK_MASK | BCM5221_INTR_MASK);
+	at91rm9200_EmacWritePhy (p_mac, BCM5221_INTR, &IntValue);
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	return (ret);
+}
+
+
+/*
+ * Name:
+ *	bcm5221_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
+ */
+unsigned char bcm5221_AutoNegotiate (AT91PS_EMAC p_mac, int *status)
+{
+	unsigned short value;
+	unsigned short PhyAnar;
+	unsigned short PhyAnalpar;
+
+	/* Set bcm5221 control register */
+	if (!at91rm9200_EmacReadPhy (p_mac, BCM5221_BMCR, &value))
+		return FALSE;
+	value &= ~BCM5221_AUTONEG;	/* remove autonegotiation enable */
+	value |=  BCM5221_ISOLATE;	/* Electrically isolate PHY */
+	if (!at91rm9200_EmacWritePhy (p_mac, BCM5221_BMCR, &value))
+		return FALSE;
+
+	/* Set the Auto_negotiation Advertisement Register */
+	/* MII advertising for 100BaseTxFD and HD, 10BaseTFD and HD, IEEE 802.3 */
+	PhyAnar = BCM5221_TX_FDX | BCM5221_TX_HDX |
+		  BCM5221_10_FDX | BCM5221_10_HDX | BCM5221_AN_IEEE_802_3;
+	if (!at91rm9200_EmacWritePhy (p_mac, BCM5221_ANAR, &PhyAnar))
+		return FALSE;
+
+	/* Read the Control Register     */
+	if (!at91rm9200_EmacReadPhy (p_mac, BCM5221_BMCR, &value))
+		return FALSE;
+
+	value |= BCM5221_SPEED_SELECT | BCM5221_AUTONEG | BCM5221_DUPLEX_MODE;
+	if (!at91rm9200_EmacWritePhy (p_mac, BCM5221_BMCR, &value))
+		return FALSE;
+	/* Restart Auto_negotiation  */
+	value |= BCM5221_RESTART_AUTONEG;
+	value &= ~BCM5221_ISOLATE;
+	if (!at91rm9200_EmacWritePhy (p_mac, BCM5221_BMCR, &value))
+		return FALSE;
+
+	/*check AutoNegotiate complete */
+	udelay (10000);
+	at91rm9200_EmacReadPhy (p_mac, BCM5221_BMSR, &value);
+	if (!(value & BCM5221_AUTONEG_COMP))
+		return FALSE;
+
+	/* Get the AutoNeg Link partner base page */
+	if (!at91rm9200_EmacReadPhy (p_mac, BCM5221_ANLPAR, &PhyAnalpar))
+		return FALSE;
+
+	if ((PhyAnar & BCM5221_TX_FDX) && (PhyAnalpar & BCM5221_TX_FDX)) {
+		/*set MII for 100BaseTX and Full Duplex  */
+		p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((PhyAnar & BCM5221_10_FDX) && (PhyAnalpar & BCM5221_10_FDX)) {
+		/*set MII for 10BaseT and Full Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_FD;
+		return TRUE;
+	}
+	return FALSE;
+}
+
+#endif	/* CONFIG_COMMANDS & CFG_CMD_NET */
+
+#endif	/* CONFIG_DRIVER_ETHER */
diff --git a/include/bcm5221.h b/include/bcm5221.h
new file mode 100644
index 0000000..6fb94aa
--- /dev/null
+++ b/include/bcm5221.h
@@ -0,0 +1,104 @@
+/*
+ * Broadcom BCM5221 Ethernet PHY
+ *
+ * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
+ * Anders Larsen <alarsen@rea.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
+ */
+
+#define	BCM5221_BMCR 		0	/* Basic Mode Control Register */
+#define BCM5221_BMSR		1	/* Basic Mode Status Register */
+#define BCM5221_PHYID1		2	/* PHY Identifier Register 1 */
+#define BCM5221_PHYID2		3	/* PHY Identifier Register 2 */
+#define BCM5221_ANAR		4	/* Auto-negotiation Advertisement Register  */
+#define BCM5221_ANLPAR		5	/* Auto-negotiation Link Partner Ability Register */
+#define BCM5221_ANER		6	/* Auto-negotiation Expansion Register  */
+#define BCM5221_ACSR		24	/* Auxiliary Control/Status Register */
+#define BCM5221_INTR		26	/* Interrupt Register */
+
+/* --Bit definitions: BCM5221_BMCR */
+#define BCM5221_RESET		(1 << 15)	/* 1= Software Reset; 0=Normal Operation */
+#define BCM5221_LOOPBACK	(1 << 14)	/* 1=loopback Enabled; 0=Normal Operation */
+#define BCM5221_SPEED_SELECT	(1 << 13)	/* 1=100Mbps; 0=10Mbps */
+#define BCM5221_AUTONEG		(1 << 12)
+#define BCM5221_POWER_DOWN	(1 << 11)
+#define BCM5221_ISOLATE		(1 << 10)
+#define BCM5221_RESTART_AUTONEG	(1 << 9)
+#define BCM5221_DUPLEX_MODE	(1 << 8)
+#define BCM5221_COLLISION_TEST	(1 << 7)
+
+/*--Bit definitions: BCM5221_BMSR */
+#define BCM5221_100BASE_T4	(1 << 15)
+#define BCM5221_100BASE_TX_FD	(1 << 14)
+#define BCM5221_100BASE_TX_HD	(1 << 13)
+#define BCM5221_10BASE_T_FD	(1 << 12)
+#define BCM5221_10BASE_T_HD	(1 << 11)
+#define BCM5221_MF_PREAMB_SUPPR	(1 << 6)
+#define BCM5221_AUTONEG_COMP	(1 << 5)
+#define BCM5221_REMOTE_FAULT	(1 << 4)
+#define BCM5221_AUTONEG_ABILITY	(1 << 3)
+#define BCM5221_LINK_STATUS	(1 << 2)
+#define BCM5221_JABBER_DETECT	(1 << 1)
+#define BCM5221_EXTEND_CAPAB	(1 << 0)
+
+/*--definitions: BCM5221_PHYID1 */
+#define BCM5221_PHYID1_OUI	0x1018
+#define BCM5221_LSB_MASK	0x3F
+
+/*--Bit definitions: BCM5221_ANAR, BCM5221_ANLPAR */
+#define BCM5221_NP		(1 << 15)
+#define BCM5221_ACK		(1 << 14)
+#define BCM5221_RF		(1 << 13)
+#define BCM5221_FCS		(1 << 10)
+#define BCM5221_T4		(1 << 9)
+#define BCM5221_TX_FDX		(1 << 8)
+#define BCM5221_TX_HDX		(1 << 7)
+#define BCM5221_10_FDX		(1 << 6)
+#define BCM5221_10_HDX		(1 << 5)
+#define BCM5221_AN_IEEE_802_3	0x0001
+
+/*--Bit definitions: BCM5221_ANER */
+#define BCM5221_PDF		(1 << 4)
+#define BCM5221_LP_NP_ABLE	(1 << 3)
+#define BCM5221_NP_ABLE		(1 << 2)
+#define BCM5221_PAGE_RX		(1 << 1)
+#define BCM5221_LP_AN_ABLE	(1 << 0)
+
+/*--Bit definitions: BCM5221_ACSR */
+#define BCM5221_100		(1 << 1)
+#define BCM5221_FDX		(1 << 0)
+
+/*--Bit definitions: BCM5221_INTR */
+#define BCM5221_FDX_LED		(1 << 15)
+#define BCM5221_INTR_ENABLE	(1 << 14)
+#define BCM5221_FDX_MASK	(1 << 11)
+#define BCM5221_SPD_MASK	(1 << 10)
+#define BCM5221_LINK_MASK	(1 << 9)
+#define BCM5221_INTR_MASK	(1 << 8)
+#define BCM5221_FDX_CHG		(1 << 3)
+#define BCM5221_SPD_CHG		(1 << 2)
+#define BCM5221_LINK_CHG	(1 << 1)
+#define BCM5221_INTR_STATUS	(1 << 0)
+
+/******************  function prototypes **********************/
+unsigned int  bcm5221_IsPhyConnected(AT91PS_EMAC p_mac);
+unsigned char bcm5221_GetLinkSpeed(AT91PS_EMAC p_mac);
+unsigned char bcm5221_AutoNegotiate(AT91PS_EMAC p_mac, int *status);
+unsigned char bcm5221_InitPhy(AT91PS_EMAC p_mac);
diff --git a/include/configs/csb637.h b/include/configs/csb637.h
new file mode 100644
index 0000000..d2c305d
--- /dev/null
+++ b/include/configs/csb637.h
@@ -0,0 +1,235 @@
+/*
+ * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
+ * Anders Larsen <alarsen@rea.de>
+ *
+ * Configuation settings for the Cogent CSB637 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* ARM asynchronous clock */
+#define AT91C_MAIN_CLOCK	184320000	/* from 3.6864 MHz crystal (3686400 * 50) */
+#define AT91C_MASTER_CLOCK	46080000	/* (AT91C_MAIN_CLOCK/4)	peripheral clock */
+
+#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	*/
+#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
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+#define CFG_USE_MAIN_OSCILLATOR		1
+/* flash */
+#define MC_PUIA_VAL	0x00000000
+#define MC_PUP_VAL	0x00000000
+#define MC_PUER_VAL	0x00000000
+#define MC_ASR_VAL	0x00000000
+#define MC_AASR_VAL	0x00000000
+#define EBI_CFGR_VAL	0x00000000
+#define SMC2_CSR_VAL	0x00003284 /* 16bit, 2 TDF, 4 WS */
+
+/* clocks */
+#define PLLAR_VAL	0x2031BE01 /* 184.320000 MHz for PCK */
+#define PLLBR_VAL	0x128A3E19 /* 47.996928 MHz (divider by 2 for USB) */
+#define MCKR_VAL	0x00000302 /* PCK/4 = MCK Master Clock = 46.080000 MHz from PLLA */
+
+/* sdram */
+#define PIOC_ASR_VAL	0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
+#define PIOC_BSR_VAL	0x00000000
+#define PIOC_PDR_VAL	0xFFFF0000
+#define EBI_CSA_VAL	0x00000002 /* CS1=SDRAM */
+#define SDRC_CR_VAL	0x21914159 /* set up the SDRAM */
+#define SDRAM		0x20000000 /* address of the SDRAM */
+#define SDRAM1		0x20000080 /* address of the SDRAM */
+#define SDRAM_VAL	0x00000000 /* value written to SDRAM */
+#define SDRC_MR_VAL	0x00000002 /* Precharge All */
+#define SDRC_MR_VAL1	0x00000004 /* refresh */
+#define SDRC_MR_VAL2	0x00000003 /* Load Mode Register */
+#define SDRC_MR_VAL3	0x00000000 /* Normal Mode */
+#define SDRC_TR_VAL	0x000002E0 /* Write refresh rate */
+#endif	/* CONFIG_SKIP_LOWLEVEL_INIT */
+/*
+ * 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 38400
+
+#define CFG_AT91C_BRGR_DIVISOR	75	/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
+
+/*
+ * 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_JFFS2 | \
+			CFG_CMD_DHCP | \
+			CFG_CMD_PING ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_IMI | \
+			CFG_CMD_AUTOSCRIPT | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC | \
+			CFG_CMD_LOADS ))
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices		*/
+#define SECTORSIZE 512
+
+#define ADDR_COLUMN 1
+#define ADDR_PAGE 2
+#define ADDR_COLUMN_PAGE 3
+
+#define NAND_ChipID_UNKNOWN	0x00
+#define NAND_MAX_FLOORS 1
+#define NAND_MAX_CHIPS 1
+
+#define AT91_SMART_MEDIA_ALE (1 << 22)	/* our ALE is AD22 */
+#define AT91_SMART_MEDIA_CLE (1 << 21)	/* our CLE is AD21 */
+
+#define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
+#define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
+
+#define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
+
+#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
+#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
+#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
+#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
+/* the following are NOP's in our implementation */
+#define NAND_CTL_CLRALE(nandptr)
+#define NAND_CTL_SETALE(nandptr)
+#define NAND_CTL_CLRCLE(nandptr)
+#define NAND_CTL_SETCLE(nandptr)
+
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM			0x20000000
+#define PHYS_SDRAM_SIZE			0x4000000  /* 64 megs */
+
+#define CFG_MEMTEST_START		PHYS_SDRAM
+#define CFG_MEMTEST_END			CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 512*1024 - 4
+#define CFG_ALT_MEMTEST			1
+#define CFG_MEMTEST_SCRATCH		CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 4
+
+#define CONFIG_DRIVER_ETHER
+#define CONFIG_NET_RETRY_COUNT		20
+#undef CONFIG_AT91C_USE_RMII
+
+#undef CONFIG_HAS_DATAFLASH
+#define CFG_SPI_WRITE_TOUT		(5*CFG_HZ)
+#define CFG_MAX_DATAFLASH_BANKS 	0
+#define CFG_MAX_DATAFLASH_PAGES 	16384
+#define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* Logical adress for CS0 */
+#define CFG_DATAFLASH_LOGIC_ADDR_CS3	0xD0000000	/* Logical adress for CS3 */
+
+/*
+ * FLASH Device configuration
+ */
+#define PHYS_FLASH_1			0x10000000
+#define PHYS_FLASH_SIZE			0x800000  /* 8 megs main flash */
+#define CFG_FLASH_BASE			PHYS_FLASH_1
+#define CFG_FLASH_CFI		1	/* flash is CFI conformant	*/
+#define CFG_FLASH_CFI_DRIVER	1	/* use common cfi driver	*/
+#define CFG_FLASH_EMPTY_INFO
+#define CFG_FLASH_USE_BUFFER_WRITE 1	/* use buffered writes (20x faster) */
+#define CFG_MAX_FLASH_BANKS	1	/* max # of memory banks	*/
+#define CFG_FLASH_INCREMENT	0	/* there is only one bank	*/
+#define CFG_FLASH_PROTECTION	1	/* hardware flash protection	*/
+#define CFG_MAX_FLASH_SECT		64
+
+#define CFG_JFFS2_FIRST_BANK	0
+#define CFG_JFFS2_FIRST_SECTOR	3
+#define CFG_JFFS2_NUM_BANKS	1
+
+#undef	CFG_ENV_IS_IN_DATAFLASH
+
+#ifdef CFG_ENV_IS_IN_DATAFLASH
+#define CFG_ENV_OFFSET			0x20000
+#define CFG_ENV_ADDR			(CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET)
+#define CFG_ENV_SIZE			0x2000  /* 0x8000 */
+#else
+#define CFG_ENV_IS_IN_FLASH		1
+#define CFG_ENV_ADDR			(PHYS_FLASH_1 + 0x20000)  /* after u-boot.bin */
+#define CFG_ENV_SIZE			0x20000 /* sectors are 128K here */
+#endif	/* CFG_ENV_IS_IN_DATAFLASH */
+
+
+#define CFG_LOAD_ADDR		0x21000000  /* default load address */
+
+#define CFG_BAUDRATE_TABLE	{115200, 57600, 38400, 19200, 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 */
+
+#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