[PATCH] ARM: at91: Ethernut 5 board support
Tim Schendekehl
tim.schendekehl at egnite.de
Mon Mar 5 05:34:58 EST 2012
Add support for the Ethernut 5 open hardware design, based
on Atmel's AT91SAM9XE512 SoC.
Signed-off-by: Tim Schendekehl <tim.schendekehl at egnite.de>
---
arch/arm/mach-at91/Kconfig | 7 +
arch/arm/mach-at91/Makefile | 1 +
arch/arm/mach-at91/board-ethernut5.c | 280 ++++++++++++++++++++++++++++++++++
3 files changed, 288 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-at91/board-ethernut5.c
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 71feb00..88ee70a 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -239,6 +239,13 @@ config MACH_CAM60
Select this if you are using KwikByte's KB9260 (CAM60) board based on the Atmel AT91SAM9260.
<http://www.kwikbyte.com/KB9260.html>
+config MACH_ETHERNUT5
+ bool "Ethernut 5 board"
+ select HAVE_AT91_DATAFLASH_CARD
+ help
+ Select this if you are using an Ethernut 5 board
+ <http://www.ethernut.de/en/hardware/enut5/>
+
config MACH_SAM9_L9260
bool "Olimex SAM9-L9260 board"
select HAVE_AT91_DATAFLASH_CARD
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 705e1fb..e8ef87d 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_MACH_RSI_EWS) += board-rsi-ews.o
# AT91SAM9260 board-specific support
obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o
obj-$(CONFIG_MACH_CAM60) += board-cam60.o
+obj-$(CONFIG_MACH_ETHERNUT5) += board-ethernut5.o
obj-$(CONFIG_MACH_SAM9_L9260) += board-sam9-l9260.o
obj-$(CONFIG_MACH_USB_A9260) += board-usb-a926x.o
obj-$(CONFIG_MACH_QIL_A9260) += board-qil-a9260.o
diff --git a/arch/arm/mach-at91/board-ethernut5.c b/arch/arm/mach-at91/board-ethernut5.c
new file mode 100644
index 0000000..d1e01b1
--- /dev/null
+++ b/arch/arm/mach-at91/board-ethernut5.c
@@ -0,0 +1,280 @@
+/*
+ * linux/arch/arm/mach-at91/board-ethernut5.c
+ *
+ * Copyright (C) 2008 Ole Reinhardt <ole.reinhardt at thermotemp.de>
+ * Copyright (C) 2012 egnite GmbH <info at egnite.de>
+ *
+ * linux/arch/arm/mach-at91/board-sam9260ek.c
+ * Copyright (C) 2005 SAN People
+ * Copyright (C) 2006 Atmel
+ *
+ * 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/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/clk.h>
+#include <linux/i2c-gpio.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 ethernut5_init_early(void)
+{
+ /* Initialize processor: 18.432 MHz crystal */
+ at91_initialize(18432000);
+ /* DBGU on ttyS0. (Rx & Tx only) */
+ at91_register_uart(0, 0, 0);
+ /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+ at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
+ | ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR
+ | ATMEL_UART_DCD | ATMEL_UART_RI);
+ /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+ at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
+ | ATMEL_UART_RTS);
+ /* set serial console to ttyS0 (ie, DBGU) */
+ at91_set_serial_console(0);
+}
+
+/*
+ * USB host port
+ */
+static struct at91_usbh_data __initdata ethernut5_usbh_data = {
+ .ports = 2,
+ .vbus_pin = {-EINVAL, -EINVAL},
+};
+
+/*
+ * USB device port
+ */
+static struct at91_udc_data __initdata ethernut5_udc_data = {
+ .vbus_pin = AT91_PIN_PC5,
+ .pullup_pin = -EINVAL, /* pull-up driven by UDC */
+};
+
+/*
+ * SPI flash
+ */
+static struct mtd_partition ethernut5_spi_dataflash_partitions[] = {
+ {
+ .name = "user",
+ .size = 0x021000,
+ .offset = 0x000000,
+ },
+ {
+ .name = "setup",
+ .size = 0x021000,
+ .offset = 0x021000,
+ },
+ {
+ .name = "uboot",
+ .size = 0x084000,
+ .offset = 0x042000,
+ },
+ {
+ .name = "kernel",
+ .size = 0x0C6000,
+ .offset = 0x294000,
+ },
+ {
+ .name = "nutos",
+ .size = 0x35A000,
+ .offset = 0x084000,
+ },
+ {
+ .name = "env",
+ .size = 0x3DE000,
+ .offset = 0x021000,
+ }
+};
+
+static struct flash_platform_data ethernut5_spi_dataflash_data = {
+ .name = "mtd_dataflash",
+ .parts = ethernut5_spi_dataflash_partitions,
+ .nr_parts = ARRAY_SIZE(ethernut5_spi_dataflash_partitions),
+ .type = "mtd_dataflash",
+};
+
+static struct spi_board_info ethernut5_spi_devices[] = {
+ {
+ .modalias = "mtd_dataflash",
+ .chip_select = 0,
+ .max_speed_hz = 15 * 1000 * 1000,
+ .bus_num = 0,
+ .platform_data = ðernut5_spi_dataflash_data,
+ },
+};
+
+/*
+ * NAND flash
+ */
+static struct sam9_smc_config __initdata ethernut5_nand_smc_config = {
+ .ncs_read_setup = 0,
+ .nrd_setup = 1,
+ .ncs_write_setup = 0,
+ .nwe_setup = 1,
+
+ .ncs_read_pulse = 3,
+ .nrd_pulse = 3,
+ .ncs_write_pulse = 3,
+ .nwe_pulse = 3,
+
+ .read_cycle = 5,
+ .write_cycle = 5,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
+ AT91_SMC_EXNWMODE_DISABLE,
+ .tdf_cycles = 1,
+};
+
+static struct mtd_partition __initdata ethernut5_nand_partition[] = {
+ {
+ .name = "root",
+ .offset = 0,
+ .size = 0x08000000,
+ },
+ {
+ .name = "data",
+ .offset = 0x08000000,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+static struct atmel_nand_data __initdata ethernut5_nand_data = {
+ .ale = 21,
+ .cle = 22,
+ .det_pin = -EINVAL,
+ .rdy_pin = -EINVAL,
+ .enable_pin = AT91_PIN_PC14,
+ .parts = ethernut5_nand_partition,
+ .num_parts = ARRAY_SIZE(ethernut5_nand_partition),
+ .bus_width_16 = 0,
+};
+
+static void __init ethernut5_add_device_nand(void)
+{
+ ethernut5_nand_smc_config.mode |= AT91_SMC_DBW_8;
+ sam9_smc_configure(0, 3, ðernut5_nand_smc_config);
+ at91_add_device_nand(ðernut5_nand_data);
+}
+
+/*
+ * MACB Ethernet device
+ */
+static struct macb_platform_data __initdata ethernut5_macb_data = {
+ .phy_irq_pin = AT91_PIN_PA7,
+ .is_rmii = 1,
+};
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata ethernut5_mmc_data = {
+ .slot_b = 0,
+ .wire4 = 1,
+ .det_pin = AT91_PIN_PC8,
+ .wp_pin = AT91_PIN_PC9,
+ .vcc_pin = -EINVAL,
+};
+
+/*
+ * I2C devices
+ */
+static struct i2c_board_info __initdata ethernut5_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("pcf8563", 0x51),
+ },
+ {
+ I2C_BOARD_INFO("pmmc", 0x22),
+ }
+};
+
+static struct i2c_gpio_platform_data ethernut5_i2c_pdata = {
+ .sda_pin = AT91_PIN_PA23,
+ .sda_is_open_drain = 1,
+ .scl_pin = AT91_PIN_PA24,
+ .scl_is_open_drain = 1,
+ .udelay = 10,
+};
+
+static struct platform_device ethernut5_twi_device = {
+ .name = "i2c-gpio",
+ .id = -1,
+ .dev.platform_data = ðernut5_i2c_pdata,
+};
+
+static void __init ethernut5_add_device_i2c(struct i2c_board_info *devices,
+ int nr_devices)
+{
+ at91_set_GPIO_periph(AT91_PIN_PA23, 1);
+ at91_set_multi_drive(AT91_PIN_PA23, 1);
+
+ at91_set_GPIO_periph(AT91_PIN_PA24, 1);
+ at91_set_multi_drive(AT91_PIN_PA24, 1);
+
+ i2c_register_board_info(0, devices, nr_devices);
+ platform_device_register(ðernut5_twi_device);
+}
+
+static void __init ethernut5_board_init(void)
+{
+ /* I2C needed for power management of other devices */
+ ethernut5_add_device_i2c(ethernut5_i2c_devices,
+ ARRAY_SIZE(ethernut5_i2c_devices));
+ /* Serial */
+ at91_add_device_serial();
+ /* USB Host */
+ at91_add_device_usbh(ðernut5_usbh_data);
+ /* USB Device */
+ at91_add_device_udc(ðernut5_udc_data);
+ /* SPI */
+ at91_add_device_spi(ethernut5_spi_devices,
+ ARRAY_SIZE(ethernut5_spi_devices));
+ /* NAND */
+ ethernut5_add_device_nand();
+ /* Ethernet */
+ at91_add_device_eth(ðernut5_macb_data);
+ /* MMC */
+ at91_add_device_mmc(0, ðernut5_mmc_data);
+}
+
+MACHINE_START(ETHERNUT5, "Ethernut 5")
+ /* Maintainer: egnite GmbH <info at egnite.de> */
+ .atag_offset = 0x100,
+ .timer = &at91sam926x_timer,
+ .init_early = ethernut5_init_early,
+ .init_machine = ethernut5_board_init,
+ .map_io = at91_map_io,
+ .init_irq = at91_init_irq_default,
+MACHINE_END
--
1.7.1
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