Added support for KwikByte KB920x boards (based on AT91RM9200)

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

5 files changed, 381 insertions, 0 deletions

diff --git a/board/kb9202/Makefile b/board/kb9202/Makefile
new file mode 100644
index 0000000..a62d849
--- /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 0000000..9ce161e
--- /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 0000000..bab6426
--- /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 0000000..2baddbd
--- /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 0000000..76df6b2
--- /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 = .;
+}