[ARM] 3589/1: AT91RM9200 DK/EK board update
Patch from Andrew Victor
This patch updates the support for the Atmel DK and EK boards.
The changes include:
1. Use the new at91_uart_config structure and device registration
functions for the UARTs.
2. Registration of I2C and SPI platform devices.
3. The USB Device pullup line is connected to reset, so multidrive needs
to be enabled on the line. [Patch from David Brownell].
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91rm9200/board-ek.c b/arch/arm/mach-at91rm9200/board-ek.c
index 80d90f5..4d7468e 100644
--- a/arch/arm/mach-at91rm9200/board-ek.c
+++ b/arch/arm/mach-at91rm9200/board-ek.c
@@ -27,6 +27,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
#include <asm/hardware.h>
#include <asm/setup.h>
@@ -38,8 +39,8 @@
#include <asm/mach/irq.h>
#include <asm/arch/hardware.h>
-#include <asm/mach/serial_at91rm9200.h>
#include <asm/arch/board.h>
+#include <asm/arch/gpio.h>
#include "generic.h"
@@ -57,14 +58,14 @@
* 0 .. 3 = USART0 .. USART3
* 4 = DBGU
*/
-#define EK_UART_MAP { 4, 1, -1, -1, -1 } /* ttyS0, ..., ttyS4 */
-#define EK_SERIAL_CONSOLE 0 /* ttyS0 */
+static struct at91_uart_config __initdata ek_uart_config = {
+ .console_tty = 0, /* ttyS0 */
+ .nr_tty = 2,
+ .tty_map = { 4, 1, -1, -1, -1 } /* ttyS0, ..., ttyS4 */
+};
static void __init ek_map_io(void)
{
- int serial[AT91_NR_UART] = EK_UART_MAP;
- int i;
-
at91rm9200_map_io();
/* Initialize clocks: 18.432 MHz crystal */
@@ -73,16 +74,8 @@
/* Setup the LEDs */
at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
-#ifdef CONFIG_SERIAL_AT91
- at91_console_port = EK_SERIAL_CONSOLE;
- memcpy(at91_serial_map, serial, sizeof(serial));
-
- /* Register UARTs */
- for (i = 0; i < AT91_NR_UART; i++) {
- if (serial[i] >= 0)
- at91_register_uart(i, serial[i]);
- }
-#endif
+ /* Setup the serial ports and console */
+ at91_init_serial(&ek_uart_config);
}
static struct at91_eth_data __initdata ek_eth_data = {
@@ -106,14 +99,36 @@
.wp_pin = AT91_PIN_PA17,
};
+static struct spi_board_info ek_spi_devices[] = {
+ { /* DataFlash chip */
+ .modalias = "mtd_dataflash",
+ .chip_select = 0,
+ .max_speed_hz = 15 * 1000 * 1000,
+ },
+#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
+ { /* DataFlash card */
+ .modalias = "mtd_dataflash",
+ .chip_select = 3,
+ .max_speed_hz = 15 * 1000 * 1000,
+ },
+#endif
+};
+
static void __init ek_board_init(void)
{
+ /* Serial */
+ at91_add_device_serial();
/* Ethernet */
at91_add_device_eth(&ek_eth_data);
/* USB Host */
at91_add_device_usbh(&ek_usbh_data);
/* USB Device */
at91_add_device_udc(&ek_udc_data);
+ at91_set_multi_drive(ek_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */
+ /* I2C */
+ at91_add_device_i2c();
+ /* SPI */
+ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
/* DataFlash card */
at91_set_gpio_output(AT91_PIN_PB22, 0);