[PATCH] at91: add support for RSIs EWS board
Josef Holzmayr
joe.mailinglists at googlemail.com
Tue Aug 2 07:36:53 EDT 2011
This adds support for the RSI EWS machine (at91rm9200-based), machine type 1609.
Includes fixes as suggested by Uwe Kleine-König and
cleanups as suggested by Russell and R.Schwebel.
Signed-off-by: Josef Holzmayr <holzmayr at rsi-elektrotechnik.de>
---
arch/arm/mach-at91/Kconfig | 5 +
arch/arm/mach-at91/Makefile | 1 +
arch/arm/mach-at91/board-rsi-ews.c | 251 ++++++++++++++++++++++++++++++++++++
3 files changed, 257 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-at91/board-rsi-ews.c
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 2248467..1555c55 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -182,6 +182,11 @@ config MACH_ECO920
help
Select this if you are using the eco920 board
+config MACH_RSI_EWS
+ bool "RSI Embedded Webserver"
+ depends on ARCH_AT91RM9200
+ help
+ Select this if you are using RSIs EWS board.
endif
# ----------------------------------------------------------
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index bf57e8b..ecd6479 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_MACH_ECBAT91) += board-ecbat91.o
obj-$(CONFIG_MACH_YL9200) += board-yl-9200.o
obj-$(CONFIG_MACH_CPUAT91) += board-cpuat91.o
obj-$(CONFIG_MACH_ECO920) += board-eco920.o
+obj-$(CONFIG_MACH_RSI_EWS) += board-rsi-ews.o
# AT91SAM9260 board-specific support
obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o
diff --git a/arch/arm/mach-at91/board-rsi-ews.c b/arch/arm/mach-at91/board-rsi-ews.c
new file mode 100644
index 0000000..96e8709
--- /dev/null
+++ b/arch/arm/mach-at91/board-rsi-ews.c
@@ -0,0 +1,251 @@
+/*
+ * linux/arch/arm/mach-at91/board-rsi_ews.c
+ *
+ * Copyright (C)
+ * 2005 SAN People,
+ * 2008-2011 R-S-I Elektrotechnik GmbH & Co. KG
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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/mtd/physmap.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 <linux/gpio.h>
+
+#include "generic.h"
+
+static void __init rsi_ews_init_early(void)
+{
+ /* Initialize processor: 18.432 MHz crystal */
+ at91_initialize(18432000);
+
+ /* Setup the LEDs */
+ at91_init_leds(AT91_PIN_PB6, AT91_PIN_PB9);
+
+ /* DBGU on ttyS0. (Rx & Tx only) */
+ /* This one is for debugging */
+ at91_register_uart(0, 0, 0);
+
+ /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+ /* Dialin/-out modem interface */
+ at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
+ | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
+ | ATMEL_UART_RI);
+
+ /* USART3 on ttyS4. (Rx, Tx, RTS) */
+ /* RS485 communication */
+ at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
+
+ /* set serial console to ttyS0 (ie, DBGU) */
+ at91_set_serial_console(0);
+}
+
+static void __init rsi_ews_init_irq(void)
+{
+ at91_init_interrupts(NULL);
+}
+
+/*
+ * Ethernet
+ */
+static struct at91_eth_data rsi_ews_eth_data __initdata = {
+ .phy_irq_pin = AT91_PIN_PC4,
+ .is_rmii = 1,
+};
+
+/*
+ * USB Host
+ */
+static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
+ .ports = 1,
+};
+
+/*
+ * SD/MC
+ */
+static struct at91_mmc_data rsi_ews_mmc_data __initdata = {
+ .slot_b = 0,
+ .wire4 = 1,
+ .det_pin = AT91_PIN_PB27,
+ .wp_pin = AT91_PIN_PB29,
+};
+
+/*
+ * I2C
+ */
+static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
+ {
+ I2C_BOARD_INFO("ds1337", 0x68),
+ },
+ {
+ I2C_BOARD_INFO("24c01", 0x50),
+ }
+};
+
+/*
+ * LEDs
+ */
+static struct gpio_led rsi_ews_leds[] = {
+ {
+ .name = "led0",
+ .gpio = AT91_PIN_PB6,
+ .active_low = 0,
+ },
+ {
+ .name = "led1",
+ .gpio = AT91_PIN_PB7,
+ .active_low = 0,
+ },
+ {
+ .name = "led2",
+ .gpio = AT91_PIN_PB8,
+ .active_low = 0,
+ },
+ {
+ .name = "led3",
+ .gpio = AT91_PIN_PB9,
+ .active_low = 0,
+ },
+};
+
+/*
+ * DataFlash
+ */
+static struct spi_board_info rsi_ews_spi_devices[] = {
+ { /* DataFlash chip 1*/
+ .modalias = "mtd_dataflash",
+ .chip_select = 0,
+ .max_speed_hz = 5 * 1000 * 1000,
+ },
+ { /* DataFlash chip 2*/
+ .modalias = "mtd_dataflash",
+ .chip_select = 1,
+ .max_speed_hz = 5 * 1000 * 1000,
+ },
+};
+
+/*
+ * NOR flash
+ */
+static struct mtd_partition rsiews_nor_partitions[] = {
+ {
+ .name = "boot",
+ .offset = 0,
+ .size = 3 * SZ_128K,
+ .mask_flags = MTD_WRITEABLE
+ },
+ {
+ .name = "kernel",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = SZ_2M - (3 * SZ_128K)
+ },
+ {
+ .name = "root",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = SZ_8M
+ },
+ {
+ .name = "kernelupd",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 3 * SZ_512K,
+ .mask_flags = MTD_WRITEABLE
+ },
+ {
+ .name = "rootupd",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 9 * SZ_512K,
+ .mask_flags = MTD_WRITEABLE
+ },
+};
+
+static struct physmap_flash_data rsiews_nor_data = {
+ .width = 2,
+ .parts = rsiews_nor_partitions,
+ .nr_parts = ARRAY_SIZE(rsiews_nor_partitions),
+};
+
+#define NOR_BASE AT91_CHIPSELECT_0
+#define NOR_SIZE SZ_16M
+
+static struct resource nor_flash_resources[] = {
+ {
+ .start = NOR_BASE,
+ .end = NOR_BASE + NOR_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device rsiews_nor_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &rsiews_nor_data,
+ },
+ .resource = nor_flash_resources,
+ .num_resources = ARRAY_SIZE(nor_flash_resources),
+};
+
+/*
+ * Init Func
+ */
+static void __init rsi_ews_board_init(void)
+{
+ /* Serial */
+ at91_add_device_serial();
+ at91_set_gpio_output(AT91_PIN_PA21, 0);
+ /* Ethernet */
+ at91_add_device_eth(&rsi_ews_eth_data);
+ /* USB Host */
+ at91_add_device_usbh(&rsi_ews_usbh_data);
+ /* I2C */
+ at91_add_device_i2c(rsi_ews_i2c_devices,
+ ARRAY_SIZE(rsi_ews_i2c_devices));
+ /* SPI */
+ at91_add_device_spi(rsi_ews_spi_devices,
+ ARRAY_SIZE(rsi_ews_spi_devices));
+ /* MMC */
+ at91_add_device_mmc(0, &rsi_ews_mmc_data);
+ /* NOR Flash */
+ platform_device_register(&rsiews_nor_flash);
+ /* LEDs */
+ at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
+}
+
+MACHINE_START(RSI_EWS, "RSI EWS")
+ /* Maintainer: Josef Holzmayr <holzmayr at rsi-elektrotechnik.de> */
+ .timer = &at91rm9200_timer,
+ .map_io = at91_map_io,
+ .init_early = rsi_ews_init_early,
+ .init_irq = rsi_ews_init_irq,
+ .init_machine = rsi_ews_board_init,
+MACHINE_END
--
1.7.4.1
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