Add support for AT91SAM9260EK

Support for booting from internal DataFlash, external DataFlash card
or NAND flash is available.

Signed-off-by: Stelian Pop <stelian@popies.net>

6 files changed, 487 insertions, 0 deletions

diff --git a/board/atmel/at91sam9260ek/Makefile b/board/atmel/at91sam9260ek/Makefile
new file mode 100644
index 0000000..309ea46
--- /dev/null
+++ b/board/atmel/at91sam9260ek/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd <at> 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	= $(obj)lib$(BOARD).a
+
+COBJS	:= at91sam9260ek.o led.o nand.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+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 .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
new file mode 100644
index 0000000..a55468e
--- /dev/null
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -0,0 +1,236 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop <at> 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 <common.h>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+#include <net.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+static void at91sam9260ek_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+	at91_set_A_periph(AT91_PIN_PB4, 1);		/* TXD0 */
+	at91_set_A_periph(AT91_PIN_PB5, 0);		/* RXD0 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
+#endif
+
+#ifdef CONFIG_USART1
+	at91_set_A_periph(AT91_PIN_PB6, 1);		/* TXD1 */
+	at91_set_A_periph(AT91_PIN_PB7, 0);		/* RXD1 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
+#endif
+
+#ifdef CONFIG_USART2
+	at91_set_A_periph(AT91_PIN_PB8, 1);		/* TXD2 */
+	at91_set_A_periph(AT91_PIN_PB9, 0);		/* RXD2 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
+#endif
+
+#ifdef CONFIG_USART3	/* DBGU */
+	at91_set_A_periph(AT91_PIN_PB14, 0);		/* DRXD */
+	at91_set_A_periph(AT91_PIN_PB15, 1);		/* DTXD */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
+
+#ifdef CONFIG_CMD_NAND
+static void at91sam9260ek_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_(0) | AT91_SMC_NCS_WRSETUP_(0) |
+		       AT91_SMC_NRDSETUP_(0) | 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 |
+		       AT91_SMC_DBW_8 | AT91_SMC_TDF_(2));
+
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
+
+	/* Configure RDY/BSY */
+	at91_set_gpio_input(AT91_PIN_PC13, 1);
+
+	/* Enable NandFlash */
+	at91_set_gpio_output(AT91_PIN_PC14, 1);
+}
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+static void at91sam9260ek_spi_hw_init(void)
+{
+	at91_set_A_periph(AT91_PIN_PA3, 0);	/* SPI0_NPCS0 */
+	at91_set_B_periph(AT91_PIN_PC11, 0);	/* SPI0_NPCS1 */
+
+	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void at91sam9260ek_macb_hw_init(void)
+{
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
+
+	/*
+	 * Disable pull-up on:
+	 *	RXDV (PA17) => PHY normal mode (not Test mode)
+	 * 	ERX0 (PA14) => PHY ADDR0
+	 *	ERX1 (PA15) => PHY ADDR1
+	 *	ERX2 (PA25) => PHY ADDR2
+	 *	ERX3 (PA26) => PHY ADDR3
+	 *	ECRS (PA28) => PHY ADDR4  => PHYADDR = 0x0
+	 *
+	 * PHY has internal pull-down
+	 */
+	writel(pin_to_mask(AT91_PIN_PA14) |
+	       pin_to_mask(AT91_PIN_PA15) |
+	       pin_to_mask(AT91_PIN_PA17) |
+	       pin_to_mask(AT91_PIN_PA25) |
+	       pin_to_mask(AT91_PIN_PA26) |
+	       pin_to_mask(AT91_PIN_PA28),
+	       pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
+
+	/* Need to reset PHY -> 500ms reset */
+	at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+				     AT91_RSTC_ERSTL | (0x0D << 8) |
+				     AT91_RSTC_URSTEN);
+
+	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
+
+	/* Wait for end hardware reset */
+	while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
+
+	/* Restore NRST value */
+	at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+				     AT91_RSTC_ERSTL | (0x0 << 8) |
+				     AT91_RSTC_URSTEN);
+
+	/* Re-enable pull-up */
+	writel(pin_to_mask(AT91_PIN_PA14) |
+	       pin_to_mask(AT91_PIN_PA15) |
+	       pin_to_mask(AT91_PIN_PA17) |
+	       pin_to_mask(AT91_PIN_PA25) |
+	       pin_to_mask(AT91_PIN_PA26) |
+	       pin_to_mask(AT91_PIN_PA28),
+	       pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
+
+	at91_set_A_periph(AT91_PIN_PA19, 0);	/* ETXCK_EREFCK */
+	at91_set_A_periph(AT91_PIN_PA17, 0);	/* ERXDV */
+	at91_set_A_periph(AT91_PIN_PA14, 0);	/* ERX0 */
+	at91_set_A_periph(AT91_PIN_PA15, 0);	/* ERX1 */
+	at91_set_A_periph(AT91_PIN_PA18, 0);	/* ERXER */
+	at91_set_A_periph(AT91_PIN_PA16, 0);	/* ETXEN */
+	at91_set_A_periph(AT91_PIN_PA12, 0);	/* ETX0 */
+	at91_set_A_periph(AT91_PIN_PA13, 0);	/* ETX1 */
+	at91_set_A_periph(AT91_PIN_PA21, 0);	/* EMDIO */
+	at91_set_A_periph(AT91_PIN_PA20, 0);	/* EMDC */
+
+#ifndef CONFIG_RMII
+	at91_set_B_periph(AT91_PIN_PA28, 0);	/* ECRS */
+	at91_set_B_periph(AT91_PIN_PA29, 0);	/* ECOL */
+	at91_set_B_periph(AT91_PIN_PA25, 0);	/* ERX2 */
+	at91_set_B_periph(AT91_PIN_PA26, 0);	/* ERX3 */
+	at91_set_B_periph(AT91_PIN_PA27, 0);	/* ERXCK */
+	at91_set_B_periph(AT91_PIN_PA23, 0);	/* ETX2 */
+	at91_set_B_periph(AT91_PIN_PA24, 0);	/* ETX3 */
+	at91_set_B_periph(AT91_PIN_PA22, 0);	/* ETXER */
+#endif
+
+}
+#endif
+
+int board_init(void)
+{
+	/* Enable Ctrlc */
+	console_init_f();
+
+	/* arch number of AT91SAM9260EK-Board */
+	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK;
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	at91sam9260ek_serial_hw_init();
+#ifdef CONFIG_CMD_NAND
+	at91sam9260ek_nand_hw_init();
+#endif
+#ifdef CONFIG_HAS_DATAFLASH
+	at91sam9260ek_spi_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	at91sam9260ek_macb_hw_init();
+#endif
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+	return 0;
+}
+
+#ifdef CONFIG_RESET_PHY_R
+void reset_phy(void)
+{
+#ifdef CONFIG_MACB
+	/*
+	 * Initialize ethernet HW addr prior to starting Linux,
+	 * needed for nfsroot
+	 */
+	eth_init(gd->bd);
+#endif
+}
+#endif
diff --git a/board/atmel/at91sam9260ek/config.mk b/board/atmel/at91sam9260ek/config.mk
new file mode 100644
index 0000000..ff2cfd1
--- /dev/null
+++ b/board/atmel/at91sam9260ek/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x23f00000
diff --git a/board/atmel/at91sam9260ek/led.c b/board/atmel/at91sam9260ek/led.c
new file mode 100644
index 0000000..4c53742
--- /dev/null
+++ b/board/atmel/at91sam9260ek/led.c
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop <at> 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 <common.h>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+#define	RED_LED		AT91_PIN_PA9	/* this is the power led */
+#define	GREEN_LED	AT91_PIN_PA6	/* this is the user led */
+
+void red_LED_on(void)
+{
+	at91_set_gpio_value(RED_LED, 1);
+}
+
+void red_LED_off(void)
+{
+	at91_set_gpio_value(RED_LED, 0);
+}
+
+void green_LED_on(void)
+{
+	at91_set_gpio_value(GREEN_LED, 0);
+}
+
+void green_LED_off(void)
+{
+	at91_set_gpio_value(GREEN_LED, 1);
+}
+
+void coloured_LED_init(void)
+{
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOA);
+
+	at91_set_gpio_output(RED_LED, 1);
+	at91_set_gpio_output(GREEN_LED, 1);
+
+	at91_set_gpio_value(RED_LED, 0);
+	at91_set_gpio_value(GREEN_LED, 1);
+}
diff --git a/board/atmel/at91sam9260ek/nand.c b/board/atmel/at91sam9260ek/nand.c
new file mode 100644
index 0000000..5131c41
--- /dev/null
+++ b/board/atmel/at91sam9260ek/nand.c
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop <at> leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
+ *
+ * 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/gpio.h>
+#include <asm/arch/at91_pio.h>
+
+#ifdef CONFIG_CMD_NAND
+
+#include <nand.h>
+
+/*
+ *	hardware specific access to control-lines
+ */
+#define	MASK_ALE	(1 << 21)	/* our ALE is AD21 */
+#define	MASK_CLE	(1 << 22)	/* our CLE is AD22 */
+
+static void at91sam9260ek_nand_hwcontrol(struct mtd_info *mtd, int cmd)
+{
+	struct nand_chip *this = mtd->priv;
+	ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
+
+	IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
+	switch (cmd) {
+	case NAND_CTL_SETCLE:
+		IO_ADDR_W |= MASK_CLE;
+		break;
+	case NAND_CTL_SETALE:
+		IO_ADDR_W |= MASK_ALE;
+		break;
+	case NAND_CTL_CLRNCE:
+		at91_set_gpio_value(AT91_PIN_PC14, 1);
+		break;
+	case NAND_CTL_SETNCE:
+		at91_set_gpio_value(AT91_PIN_PC14, 0);
+		break;
+	}
+	this->IO_ADDR_W = (void *) IO_ADDR_W;
+}
+
+static int at91sam9260ek_nand_ready(struct mtd_info *mtd)
+{
+	return at91_get_gpio_value(AT91_PIN_PC13);
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	nand->eccmode = NAND_ECC_SOFT;
+	nand->hwcontrol = at91sam9260ek_nand_hwcontrol;
+	nand->dev_ready = at91sam9260ek_nand_ready;
+	nand->chip_delay = 20;
+
+	return 0;
+}
+#endif
diff --git a/board/atmel/at91sam9260ek/u-boot.lds b/board/atmel/at91sam9260ek/u-boot.lds
new file mode 100644
index 0000000..05a6d83
--- /dev/null
+++ b/board/atmel/at91sam9260ek/u-boot.lds
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj <at> 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/arm926ejs/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 = .;
+}