Add support for Eukrea CPU9260/CPU9G20 SBC

these boards are built around Atmel's AT91SAM9260/9G20 and have
up to 64MB of NOR flash, up to 128MB of SDRAM, up to 2GB of NAND
and include a 10/100 Ethernet PHY in RMII mode.

Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Tom Rix <Tom.Rix@windriver.com>

4 files changed, 433 insertions, 0 deletions

diff --git a/board/eukrea/cpu9260/Makefile b/board/eukrea/cpu9260/Makefile
new file mode 100644
index 0000000..e98b541
--- /dev/null
+++ b/board/eukrea/cpu9260/Makefile
@@ -0,0 +1,59 @@
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian.pop@leadtechdesign.com
+# Lead Tech Design <www.leadtechdesign.com>
+# Ilko Iliev <www.ronetix.at>
+#
+# (C) Copyright 2009
+# Eric Benard <eric@eukrea.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 += $(BOARD).o
+COBJS-y += led.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+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/eukrea/cpu9260/config.mk b/board/eukrea/cpu9260/config.mk
new file mode 100644
index 0000000..9ce161e
--- /dev/null
+++ b/board/eukrea/cpu9260/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x21f00000
diff --git a/board/eukrea/cpu9260/cpu9260.c b/board/eukrea/cpu9260/cpu9260.c
new file mode 100644
index 0000000..0b4f0d4
--- /dev/null
+++ b/board/eukrea/cpu9260/cpu9260.c
@@ -0,0 +1,220 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ * Ilko Iliev <www.ronetix.at>
+ *
+ * (C) Copyright 2009
+ * Eric Benard <eric@eukrea.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/sizes.h>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91sam9_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>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+#include <net.h>
+#endif
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+#ifdef CONFIG_CMD_NAND
+static void cpu9260_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 */
+#if defined(CONFIG_CPU9G20)
+	at91_sys_write(AT91_SMC_SETUP(3),
+		       AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) |
+		       AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
+	at91_sys_write(AT91_SMC_PULSE(3),
+		       AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(4) |
+		       AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(4));
+	at91_sys_write(AT91_SMC_CYCLE(3),
+		       AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
+	at91_sys_write(AT91_SMC_MODE(3),
+		       AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
+		       AT91_SMC_EXNWMODE_DISABLE |
+		       AT91_SMC_DBW_8 |
+		       AT91_SMC_TDF_(3));
+#elif defined(CONFIG_CPU9260)
+	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 |
+		       AT91_SMC_DBW_8 |
+		       AT91_SMC_TDF_(2));
+#endif
+
+	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);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void cpu9260_macb_hw_init(void)
+{
+	unsigned long rstc;
+
+	/* 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);
+
+	rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
+
+	/* 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 |
+		       (rstc) |
+		       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_macb_hw_init();
+}
+#endif
+
+int board_init(void)
+{
+	/* Enable Ctrlc */
+	console_init_f();
+
+	/* arch number of the board */
+#if defined(CONFIG_CPU9G20)
+	gd->bd->bi_arch_number = MACH_TYPE_CPUAT9260;
+#elif defined(CONFIG_CPU9260)
+	gd->bd->bi_arch_number = MACH_TYPE_CPUAT9260;
+#endif
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	at91_serial_hw_init();
+#ifdef CONFIG_CMD_NAND
+	cpu9260_nand_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	cpu9260_macb_hw_init();
+#endif
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+	status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
+#endif
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	if (get_ram_size((long *) PHYS_SDRAM, PHYS_SDRAM_SIZE) !=
+	    PHYS_SDRAM_SIZE)
+		return -1;
+
+	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
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+#ifdef CONFIG_MACB
+	rc = macb_eth_initialize(0, (void *)AT91SAM9260_BASE_EMAC, 0x00);
+#endif
+	return rc;
+}
diff --git a/board/eukrea/cpu9260/led.c b/board/eukrea/cpu9260/led.c
new file mode 100644
index 0000000..e73543b
--- /dev/null
+++ b/board/eukrea/cpu9260/led.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ * (C) Copyright 2009
+ * Eric Benard <eric@eukrea.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 <status_led.h>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+static unsigned int saved_state[4] = {STATUS_LED_OFF, STATUS_LED_OFF,
+		STATUS_LED_OFF, STATUS_LED_OFF};
+
+void coloured_LED_init(void)
+{
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
+
+	at91_set_gpio_output(CONFIG_RED_LED, 1);
+	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
+	at91_set_gpio_output(CONFIG_YELLOW_LED, 1);
+	at91_set_gpio_output(CONFIG_BLUE_LED, 1);
+
+	at91_set_gpio_value(CONFIG_RED_LED, 1);
+	at91_set_gpio_value(CONFIG_GREEN_LED, 1);
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 1);
+	at91_set_gpio_value(CONFIG_BLUE_LED, 1);
+}
+
+void red_LED_off(void)
+{
+	at91_set_gpio_value(CONFIG_RED_LED, 1);
+	saved_state[STATUS_LED_RED] = STATUS_LED_OFF;
+}
+
+void green_LED_off(void)
+{
+	at91_set_gpio_value(CONFIG_GREEN_LED, 1);
+	saved_state[STATUS_LED_GREEN] = STATUS_LED_OFF;
+}
+
+void yellow_LED_off(void)
+{
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 1);
+	saved_state[STATUS_LED_YELLOW] = STATUS_LED_OFF;
+}
+
+void blue_LED_off(void)
+{
+	at91_set_gpio_value(CONFIG_BLUE_LED, 1);
+	saved_state[STATUS_LED_BLUE] = STATUS_LED_OFF;
+}
+
+void red_LED_on(void)
+{
+	at91_set_gpio_value(CONFIG_RED_LED, 0);
+	saved_state[STATUS_LED_RED] = STATUS_LED_ON;
+}
+
+void green_LED_on(void)
+{
+	at91_set_gpio_value(CONFIG_GREEN_LED, 0);
+	saved_state[STATUS_LED_GREEN] = STATUS_LED_ON;
+}
+
+void yellow_LED_on(void)
+{
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 0);
+	saved_state[STATUS_LED_YELLOW] = STATUS_LED_ON;
+}
+
+void blue_LED_on(void)
+{
+	at91_set_gpio_value(CONFIG_BLUE_LED, 0);
+	saved_state[STATUS_LED_BLUE] = STATUS_LED_ON;
+}
+
+void __led_init(led_id_t mask, int state)
+{
+	__led_set(mask, state);
+}
+
+void __led_toggle(led_id_t mask)
+{
+	if (STATUS_LED_BLUE == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_BLUE])
+			blue_LED_off();
+		else
+			blue_LED_on();
+	} else if (STATUS_LED_RED == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
+			red_LED_off();
+		else
+			red_LED_on();
+	} else if (STATUS_LED_GREEN == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN])
+			green_LED_off();
+		else
+			green_LED_on();
+	} else if (STATUS_LED_YELLOW == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_YELLOW])
+			yellow_LED_off();
+		else
+			yellow_LED_on();
+	}
+}
+
+void __led_set(led_id_t mask, int state)
+{
+	if (STATUS_LED_BLUE == mask) {
+		if (STATUS_LED_ON == state)
+			blue_LED_on();
+		else
+			blue_LED_off();
+	} else if (STATUS_LED_RED == mask) {
+		if (STATUS_LED_ON == state)
+			red_LED_on();
+		else
+			red_LED_off();
+	} else if (STATUS_LED_GREEN == mask) {
+		if (STATUS_LED_ON == state)
+			green_LED_on();
+		else
+			green_LED_off();
+	} else if (STATUS_LED_YELLOW == mask) {
+		if (STATUS_LED_ON == state)
+			yellow_LED_on();
+		else
+			yellow_LED_off();
+	}
+}