[PATCH] Add Board Support for Siemens L0 Board

Mon Apr 4 09:33:09 EDT 2011

Add Board Support for Siemens L0 Board

Siemens L0 is a ARM9 AT91 SAM9263 SoC based board with NAND Flash.

Signed-off-by: Manuel Traut <manut at linutronix.de>

Index: linux-2.6.39-rc1/arch/arm/mach-at91/Kconfig
===================================================================

--- linux-2.6.39-rc1.orig/arch/arm/mach-at91/Kconfig	2011-04-01 11:43:41.000000000 +0000
+++ linux-2.6.39-rc1/arch/arm/mach-at91/Kconfig	2011-04-04 18:51:25.000000000 +0000
@@ -306,6 +306,12 @@
 	  Select this if you are using Atmel's AT91SAM9263-EK Evaluation Kit.
 	  <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4057>
 
+config MACH_SIEMENS_L0
+	bool "Siemens L0"
+	select HAVE_NAND_ATMEL_BUSWIDTH_16
+	help
+	  Select this if you are using the Siemens L0 board.
+
 config MACH_USB_A9263
 	bool "CALAO USB-A9263"
 	help
Index: linux-2.6.39-rc1/arch/arm/mach-at91/Makefile
===================================================================
--- linux-2.6.39-rc1.orig/arch/arm/mach-at91/Makefile	2011-04-01 11:43:41.000000000 +0000
+++ linux-2.6.39-rc1/arch/arm/mach-at91/Makefile	2011-04-04 18:51:25.000000000 +0000
@@ -54,6 +54,7 @@
 
 # AT91SAM9263 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9263EK) += board-sam9263ek.o
+obj-$(CONFIG_MACH_SIEMENS_L0)	+= board-siemens-l0.o
 obj-$(CONFIG_MACH_USB_A9263)	+= board-usb-a9263.o
 obj-$(CONFIG_MACH_NEOCORE926)	+= board-neocore926.o
 
Index: linux-2.6.39-rc1/arch/arm/mach-at91/board-siemens-l0.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.39-rc1/arch/arm/mach-at91/board-siemens-l0.c	2011-04-04 18:52:48.000000000 +0000
@@ -0,0 +1,189 @@
+/*
+ * linux/arch/arm/mach-at91/board-siemens-l0.c
+ * based on linux/arch/arm/mach-at91/board-sam9263ek.c
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2007 Atmel Corporation.
+ *  Copyright (C) 2011 Linutronix GmbH
+ *
+ * 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 <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/gpio_keys.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
+#include <mach/at91_shdwc.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+static void __init l0_map_io(void)
+{
+	/* Initialize processor: 16.000 MHz crystal */
+	at91sam9263_initialize(16000000);
+
+	/* DBGU on ttyS0. (Rx & Tx only) */
+	at91_register_uart(0, 0, 0);
+
+	/* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9263_ID_US0, 1,
+		ATMEL_UART_CTS | ATMEL_UART_RTS);
+
+	/* set serial console to ttyS0 (ie, DBGU) */
+	at91_set_serial_console(0);
+}
+
+static void __init l0_init_irq(void)
+{
+	at91sam9263_init_interrupts(NULL);
+}
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata l0_usbh_data = {
+	.ports		= 2,
+	.vbus_pin	= { AT91_PIN_PE2, AT91_PIN_PE5 },
+};
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata l0_udc_data = {
+	.vbus_pin	= AT91_PIN_PE1,
+	.pullup_pin	= 0,		/* pull-up driven by UDC */
+};
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata l0_mmc_data = {
+	.slot_b		= 0,
+	.wire4		= 1,
+	.det_pin	= AT91_PIN_PA16,
+	.wp_pin		= AT91_PIN_PE0,
+/*	.vcc_pin	= ... not connected */
+};
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata l0_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PE31,
+	.is_rmii	= 1,
+};
+
+/*
+ * CAN
+ */
+static void sam9263l0_transceiver_switch(int on)
+{
+	if (on) {
+		at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
+		at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
+	} else {
+		at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
+		at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
+	}
+}
+
+static struct at91_can_data l0_can_data = {
+	.transceiver_switch = sam9263l0_transceiver_switch,
+};
+
+/*
+ * Nand flash
+ */
+static struct mtd_partition __initdata l0_nand_partition[] = {
+	{
+		.name   = "bootloader",
+		.offset = 0,
+		.size   = SZ_256K,
+	},
+	{
+		.name   = "ubi",
+		.offset = MTDPART_OFS_NXTBLK,
+		.size   = MTDPART_SIZ_FULL,
+	},
+};
+
+static struct mtd_partition * __init nand_partitions(int size,
+	int *num_partitions)
+{
+	*num_partitions = ARRAY_SIZE(l0_nand_partition);
+	return l0_nand_partition;
+}
+
+static struct atmel_nand_data __initdata l0_nand_data = {
+	.ale		= 21,
+	.cle		= 22,
+/*	.det_pin	= ... not connected */
+	.rdy_pin	= AT91_PIN_PA22,
+	.enable_pin	= AT91_PIN_PD15,
+	.partition_info	= nand_partitions,
+	.bus_width_16	= 1,
+};
+
+static void __init l0_add_device_nand(void)
+{
+	at91_add_device_nand(&l0_nand_data);
+}
+
+/*
+ *   Init Board
+ */
+static void __init l0_board_init(void)
+{
+	/* Serial */
+	at91_add_device_serial();
+	/* USB Host */
+	at91_add_device_usbh(&l0_usbh_data);
+	/* USB Device */
+	at91_add_device_udc(&l0_udc_data);
+	/* MMC */
+	at91_add_device_mmc(1, &l0_mmc_data);
+	/* Ethernet */
+	at91_add_device_eth(&l0_macb_data);
+	/* NAND */
+	l0_add_device_nand();
+	/* CAN */
+	at91_add_device_can(&l0_can_data);
+}
+
+MACHINE_START(SIEMENS_L0, "Siemens L0")
+	/* Maintainer: Atmel */
+	.boot_params	= AT91_SDRAM_BASE + 0x100,
+	.timer		= &at91sam926x_timer,
+	.map_io		= l0_map_io,
+	.init_irq	= l0_init_irq,
+	.init_machine	= l0_board_init,
+MACHINE_END

