[U-Boot] [PATCH] Support for the Calao TNY-A9260 board

* [U-Boot] [PATCH] Support for the Calao TNY-A9260 board
@ 2009-07-21 15:53 Albin Tonnerre
  2009-07-21 17:40 ` Wolfgang Denk
  0 siblings, 1 reply; 36+ messages in thread
From: Albin Tonnerre @ 2009-07-21 15:53 UTC (permalink / raw)
  To: u-boot

The Calao TNY-A9260 board is a board manufactured and sold by Calao
Systems <http://www.calao-systems.com>. Its components are very
similar to the AT91SAM9260EK board, so its configuration is based on
the configuration of this board. There are however some differences:
different clocks, no LCD, no ethernet. It also uses SPI EEPROM to store
the environment.
The SPI chip is a STM95080, and as it's used in a number of CALAO boards
which should be supported soon, the corresponding spi_read and spi_write
functions have been put in drivers/spi/eeprom_m95xxx.c
---
 MAINTAINERS                              |    4 +
 MAKEALL                                  |    1 +
 Makefile                                 |   12 +++
 board/calao/tny_a9260/Makefile           |   55 ++++++++++
 board/calao/tny_a9260/config.mk          |    1 +
 board/calao/tny_a9260/spi.c              |   49 +++++++++
 board/calao/tny_a9260/tny_a9260.c        |  102 +++++++++++++++++++
 cpu/arm926ejs/at91/at91sam9260_devices.c |    2 +-
 drivers/spi/Makefile                     |    1 +
 drivers/spi/eeprom_m95xxx.c              |  114 +++++++++++++++++++++
 include/configs/tny_a9260.h              |  158 ++++++++++++++++++++++++++++++
 11 files changed, 498 insertions(+), 1 deletions(-)
 create mode 100644 board/calao/tny_a9260/Makefile
 create mode 100644 board/calao/tny_a9260/config.mk
 create mode 100644 board/calao/tny_a9260/spi.c
 create mode 100644 board/calao/tny_a9260/tny_a9260.c
 create mode 100644 drivers/spi/eeprom_m95xxx.c
 create mode 100644 include/configs/tny_a9260.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 575a7ec..1ba1921 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -624,6 +624,10 @@ Peter Pearse <peter.pearse@arm.com>
 	versatile	ARM926EJ-S
 	versatile	ARM926EJ-S
 
+Albin Tonnerre <albin.tonnerre@free-electrons.com>
+
+	tny_a9260	ARM926EJS (AT91SAM9260 SoC)
+
 Dave Peverley <dpeverley@mpc-data.co.uk>
 
 	omap730p2	ARM926EJS
diff --git a/MAKEALL b/MAKEALL
index 020ff73..59b65d2 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -599,6 +599,7 @@ LIST_at91="			\
 	m501sk			\
 	pm9261			\
 	pm9263			\
+	tny_a9260	\
 "
 
 #########################################################################
diff --git a/Makefile b/Makefile
index 25a6254..d05abd9 100644
--- a/Makefile
+++ b/Makefile
@@ -2807,6 +2807,18 @@ at91sam9g45ekes_config	:	unconfig
 pm9263_config	:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm926ejs pm9263 ronetix at91
 
+tny_a9260_nandflash_config \
+tny_a9260_eeprom_config \
+tny_a9260_config	:	unconfig
+	@if [ "$(findstring _nandflash,$@)" ] ; then \
+		$(XECHO) "#define CONFIG_ENV_IS_IN_NAND"		>>$(obj)include/config.h ; \
+		$(XECHO) "... with environment variable in NAND FLASH" ; \
+	else \
+		$(XECHO) "#define CONFIG_ENV_IS_IN_EEPROM"	>>$(obj)include/config.h ; \
+		$(XECHO) "... with environment variable in SPI EEPROM CS1" ; \
+	fi;
+	@$(MKCONFIG) -a tny_a9260 arm arm926ejs tny_a9260 calao at91
+
 ########################################################################
 ## ARM Integrator boards - see doc/README-integrator for more info.
 integratorap_config	\
diff --git a/board/calao/tny_a9260/Makefile b/board/calao/tny_a9260/Makefile
new file mode 100644
index 0000000..21f5ed1
--- /dev/null
+++ b/board/calao/tny_a9260/Makefile
@@ -0,0 +1,55 @@
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian.pop@leadtechdesign.com>
+# Lead Tech Design <www.leadtechdesign.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., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS-y	+= tny_a9260.o
+COBJS-$(CONFIG_ATMEL_SPI)	+= spi.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/calao/tny_a9260/config.mk b/board/calao/tny_a9260/config.mk
new file mode 100644
index 0000000..ff2cfd1
--- /dev/null
+++ b/board/calao/tny_a9260/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x23f00000
diff --git a/board/calao/tny_a9260/spi.c b/board/calao/tny_a9260/spi.c
new file mode 100644
index 0000000..e02955f
--- /dev/null
+++ b/board/calao/tny_a9260/spi.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2009 Albin Tonnerre <albin.tonnerre@free-electrons.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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_spi.h>
+#include <asm/arch/gpio.h>
+#include <spi.h>
+
+#define TNY_A9260_CS_PIN	AT91_PIN_PC11
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs == 1;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	at91_set_gpio_value(TNY_A9260_CS_PIN, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	at91_set_gpio_value(TNY_A9260_CS_PIN, 1);
+}
+
+void spi_init_f(void)
+{
+	/* everything done in board_init */
+}
diff --git a/board/calao/tny_a9260/tny_a9260.c b/board/calao/tny_a9260/tny_a9260.c
new file mode 100644
index 0000000..cedcdbd
--- /dev/null
+++ b/board/calao/tny_a9260/tny_a9260.c
@@ -0,0 +1,102 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * Copyright (C) 2009 Albin Tonnerre <albin.tonnerre@free-electrons.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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam9_smc.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+#include <asm/arch/hardware.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+static void tny_a9260_nand_hw_init(void)
+{
+	unsigned long csa;
+
+	/* Enable CS3 */
+	csa = at91_sys_read(AT91_MATRIX_EBICSA);
+	at91_sys_write(AT91_MATRIX_EBICSA,
+		       csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
+
+	/* Configure SMC CS3 for NAND/SmartMedia */
+	at91_sys_write(AT91_SMC_SETUP(3),
+		       AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+		       AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
+	at91_sys_write(AT91_SMC_PULSE(3),
+		       AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
+		       AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
+	at91_sys_write(AT91_SMC_CYCLE(3),
+		       AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
+	at91_sys_write(AT91_SMC_MODE(3),
+		       AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
+		       AT91_SMC_EXNWMODE_DISABLE |
+#ifdef CONFIG_SYS_NAND_DBW_16
+		       AT91_SMC_DBW_16 |
+#else /* CONFIG_SYS_NAND_DBW_8 */
+		       AT91_SMC_DBW_8 |
+#endif
+		       AT91_SMC_TDF_(2));
+
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
+
+	/* Configure RDY/BSY */
+	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
+
+	/* Enable NandFlash */
+	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
+}
+
+int board_init(void)
+{
+	/* Enable Ctrlc */
+	console_init_f();
+
+	gd->bd->bi_arch_number = MACH_TYPE_TNY_A9260;
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	at91_serial_hw_init();
+	tny_a9260_nand_hw_init();
+	at91_spi0_hw_init(1 << 5 | 1 << 1);
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	gd->bd->bi_dram[0].size = get_ram_size(PHYS_SDRAM, PHYS_SDRAM_SIZE);
+	return 0;
+}
diff --git a/cpu/arm926ejs/at91/at91sam9260_devices.c b/cpu/arm926ejs/at91/at91sam9260_devices.c
index 5309ba2..f86cb99 100644
--- a/cpu/arm926ejs/at91/at91sam9260_devices.c
+++ b/cpu/arm926ejs/at91/at91sam9260_devices.c
@@ -75,7 +75,7 @@ void at91_serial_hw_init(void)
 #endif
 }
 
-#ifdef CONFIG_HAS_DATAFLASH
+#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
 void at91_spi0_hw_init(unsigned long cs_mask)
 {
 	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index a9f67a0..35c9e02 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -33,6 +33,7 @@ COBJS-$(CONFIG_MPC52XX_SPI) += mpc52xx_spi.o
 COBJS-$(CONFIG_MPC8XXX_SPI) += mpc8xxx_spi.o
 COBJS-$(CONFIG_MXC_SPI) += mxc_spi.o
 COBJS-$(CONFIG_SOFT_SPI) += soft_spi.o
+COBJS-$(CONFIG_M95XXX_SPI) += eeprom_m95xxx.o
 
 COBJS	:= $(COBJS-y)
 SRCS	:= $(COBJS:.o=.c)
diff --git a/drivers/spi/eeprom_m95xxx.c b/drivers/spi/eeprom_m95xxx.c
new file mode 100644
index 0000000..0b9f983
--- /dev/null
+++ b/drivers/spi/eeprom_m95xxx.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2009 Albin Tonnerre <albin.tonnerre@free-electrons.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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <spi.h>
+
+#define SPI_EEPROM_WREN		0x06
+#define SPI_EEPROM_RDSR		0x05
+#define SPI_EEPROM_READ		0x03
+#define SPI_EEPROM_WRITE	0x02
+
+#ifndef CONFIG_DEFAULT_SPI_BUS
+#define CONFIG_DEFAULT_SPI_BUS 0
+#endif
+
+#ifndef CONFIG_DEFAULT_SPI_MODE
+#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
+#endif
+
+ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len)
+{
+	struct spi_slave *slave;
+	u8 cmd = SPI_EEPROM_READ;
+
+	slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
+			CONFIG_DEFAULT_SPI_MODE);
+	spi_claim_bus(slave);
+
+	/* command */
+	if(spi_xfer(slave, 8, &cmd, NULL, SPI_XFER_BEGIN))
+		return -1;
+
+	/* if alen == 3, addr[0] is the block number, we never use it here. All we
+	 * need are the lower 16 bits*/
+	if (alen == 3)
+		addr++;
+
+	/* address, and data */
+	if(spi_xfer(slave, 16, addr, NULL, 0))
+		return -1;
+	if(spi_xfer(slave, 8*len, NULL, buffer, SPI_XFER_END))
+		return -1;
+
+	spi_release_bus(slave);
+	spi_free_slave(slave);
+	return len;
+}
+
+ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len)
+{
+	struct spi_slave *slave;
+	int i;
+	char buf[3];
+
+	slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
+			CONFIG_DEFAULT_SPI_MODE);
+	spi_claim_bus(slave);
+
+	buf[0] = SPI_EEPROM_WREN;
+	if(spi_xfer(slave, 8, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END))
+		return -1;
+
+	buf[0] = SPI_EEPROM_WRITE;
+
+	/* As for reading, drop addr[0] if alen is 3 */
+	if (alen == 3) {
+		alen--;
+		addr++;
+	}
+
+	memcpy(buf+1, addr, alen);
+	/* command + addr, then data */
+	if(spi_xfer(slave, 24, buf, NULL, SPI_XFER_BEGIN))
+		return -1;
+	if(spi_xfer(slave, len*8, buffer, NULL, SPI_XFER_END))
+		return -1;
+
+	for (i = 0; i < 1000; i++) {
+		buf[0] = SPI_EEPROM_RDSR;
+		buf[1] = 0;
+		spi_xfer(slave, 16, buf, buf, SPI_XFER_BEGIN | SPI_XFER_END);
+
+		if (!(buf[1] & 1)) {
+			break;
+		}
+		udelay(1000);
+	}
+	if (i >= 1000) {
+		printf ("*** spi_write: Time out while writing!\n");
+	}
+
+	spi_release_bus(slave);
+	spi_free_slave(slave);
+	return len;
+}
diff --git a/include/configs/tny_a9260.h b/include/configs/tny_a9260.h
new file mode 100644
index 0000000..1dcbb97
--- /dev/null
+++ b/include/configs/tny_a9260.h
@@ -0,0 +1,158 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * Copyright (C) 2009 Albin Tonnerre <albin.tonnerre@free-electrons.com>
+ *
+ * Configuation settings for the Calao TNY-A9260 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 AT91_MAIN_CLOCK		12000000	/* 12 MHz crystal */
+#define CONFIG_SYS_HZ		1000
+
+#define CONFIG_ARM926EJS	1	/* This is an ARM926EJS Core	*/
+
+#define CONFIG_AT91SAM9260	1	/* It's an Atmel AT91SAM9260 SoC*/
+
+#define CONFIG_ARCH_CPU_INIT
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
+
+#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 CONFIG_SKIP_RELOCATE_UBOOT
+
+/*
+ * Hardware drivers
+ */
+#define CONFIG_ATMEL_USART	1
+#undef CONFIG_USART0
+#undef CONFIG_USART1
+#undef CONFIG_USART2
+#define CONFIG_USART3		1	/* USART 3 is DBGU */
+
+#define CONFIG_BOOTDELAY	3
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_SOURCE
+#undef CONFIG_CMD_USB
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			0x20000000
+#define PHYS_SDRAM_SIZE			0x04000000	/* 64 megs */
+
+/* SPI EEPROM */
+#define CONFIG_SPI
+#define CONFIG_CMD_SPI
+#define CONFIG_ATMEL_SPI
+#define CONFIG_SYS_SPI_WRITE_TOUT		(5*CONFIG_SYS_HZ)
+#define AT91_SPI_CLK			15000000
+
+#define CONFIG_CMD_EEPROM
+#define CONFIG_M95XXX_SPI
+#define CONFIG_SYS_EEPROM_SIZE 0x10000
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 5
+
+/* NAND flash */
+#define CONFIG_CMD_NAND
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_MAX_NAND_DEVICE		1
+#define CONFIG_SYS_NAND_BASE			0x40000000
+#define CONFIG_SYS_NAND_DBW_8			1
+/* our ALE is AD21 */
+#define CONFIG_SYS_NAND_MASK_ALE		(1 << 21)
+/* our CLE is AD22 */
+#define CONFIG_SYS_NAND_MASK_CLE		(1 << 22)
+#define CONFIG_SYS_NAND_ENABLE_PIN		AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN		AT91_PIN_PC13
+
+/* NOR flash - no real flash on this board */
+#define CONFIG_SYS_NO_FLASH			1
+
+#define CONFIG_DOS_PARTITION		1
+#define CONFIG_CMD_FAT			1
+
+#define CONFIG_SYS_LOAD_ADDR			0x22000000	/* load address */
+
+#define CONFIG_SYS_MEMTEST_START		PHYS_SDRAM
+#define CONFIG_SYS_MEMTEST_END			0x23e00000
+
+/* Env in EEPROM, bootstrap + u-boot in NAND*/
+#ifdef CONFIG_ENV_IS_IN_EEPROM
+#define CONFIG_ENV_OFFSET		0x20
+#define CONFIG_ENV_SIZE		0x1000
+#endif
+
+/* Env, bootstrap and u-boot in NAND */
+#ifdef CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET 0x60000
+#define CONFIG_ENV_OFFSET_REDUND 0x80000
+#define CONFIG_ENV_SIZE 0x20000
+#endif
+
+#define CONFIG_BOOTCOMMAND	"nboot 0x21000000 0 400000"
+#define CONFIG_BOOTARGS     "console=ttyS0,115200 " \
+                            "root=/dev/mtdblock1 " \
+                            "mtdparts=atmel_nand:16M(kernel)ro," \
+                            "120M(rootfs),-(other) " \
+                            "rw rootfstype=jffs2"
+
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CONFIG_SYS_PROMPT		"U-Boot> "
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP		1
+#define CONFIG_CMDLINE_EDITING	1
+
+#define ROUND(A, B)		(((A) + (B)) & ~((B) - 1))
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+#define CONFIG_SYS_GBL_DATA_SIZE	128	/* 128 bytes for initial data */
+
+#define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif
-- 
1.6.0.4

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