This patch adds support for modem device found on Amstrad E3 (Delta) board.
Patch created against linux-2.6.31-rc1. Based on earlier patch by Jonathan McDowell, available at http://the.earth.li/pub/e3/2.6.19/ams-delta-modem.patch. Modified after Ladislav Michl's arch/arm/mach-omap1/board-voiceblue.c. Signed-off-by: Janusz Krzysztofik <[email protected]> --- Registering the modem platform device from a separate arch_initcall (and not from machine_init() callback) preserves serial console port at ttyS0. --- linux-2.6.31-rc1/arch/arm/mach-omap1/board-ams-delta.c.orig 2009-06-27 20:19:50.000000000 +0200 +++ linux-2.6.31-rc1/arch/arm/mach-omap1/board-ams-delta.c 2009-07-04 00:50:46.000000000 +0200 @@ -15,8 +15,11 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/input.h> +#include <linux/irq.h> #include <linux/platform_device.h> +#include <linux/serial_8250.h> +#include <asm/serial.h> #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -233,7 +236,39 @@ static void __init ams_delta_init(void) omap_usb_init(&ams_delta_usb_config); platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices)); + +} + +static struct plat_serial8250_port ams_delta_modem_ports[] = { + { + .membase = (void *) AMS_DELTA_MODEM_VIRT, + .mapbase = AMS_DELTA_MODEM_PHYS, + .irq = OMAP_GPIO_IRQ(2), + .flags = UPF_BOOT_AUTOCONF, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = BASE_BAUD * 16, + }, + { }, +}; + +static struct platform_device ams_delta_modem_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM1, + .dev = { + .platform_data = ams_delta_modem_ports, + }, +}; + +static int __init ams_delta_modem_init(void) +{ + set_irq_type(OMAP_GPIO_IRQ(2), IRQ_TYPE_EDGE_RISING); + ams_delta_latch2_write( + AMS_DELTA_LATCH2_MODEM_NRESET | AMS_DELTA_LATCH2_MODEM_CODEC, + AMS_DELTA_LATCH2_MODEM_NRESET | AMS_DELTA_LATCH2_MODEM_CODEC); + return platform_device_register(&ams_delta_modem_device); } +arch_initcall(ams_delta_modem_init); static void __init ams_delta_map_io(void) { -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
