/* * linux/arch/arm/mach-shark/arch.c * * Architecture specific stuff. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/sched.h> #include <linux/serial_8250.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/io.h> #include <asm/leds.h> #include <asm/param.h> #include <asm/mach/map.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> static struct plat_serial8250_port serial_platform_data[] = { { .iobase = 0x3f8, .irq = 4, .uartclk = 1843200, .regshift = 0, .iotype = UPIO_PORT, .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, }, { .iobase = 0x2f8, .irq = 3, .uartclk = 1843200, .regshift = 0, .iotype = UPIO_PORT, .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, }, { }, }; static struct platform_device serial_device = { .name = "serial8250", .id = PLAT8250_DEV_PLATFORM, .dev = { .platform_data = serial_platform_data, }, }; static int __init shark_init(void) { int ret; if (machine_is_shark()) ret = platform_device_register(&serial_device); return ret; } arch_initcall(shark_init); extern void shark_init_irq(void); static struct map_desc shark_io_desc[] __initdata = { { .virtual = IO_BASE, .pfn = __phys_to_pfn(IO_START), .length = IO_SIZE, .type = MT_DEVICE } }; static void __init shark_map_io(void) { iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc)); } #define IRQ_TIMER 0 #define HZ_TIME ((1193180 + HZ/2) / HZ) static irqreturn_t shark_timer_interrupt(int irq, void *dev_id) { timer_tick(); return IRQ_HANDLED; } static struct irqaction shark_timer_irq = { .name = "Shark Timer Tick", .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, .handler = shark_timer_interrupt, }; /* * Set up timer interrupt, and return the current time in seconds. */ static void __init shark_timer_init(void) { outb(0x34, 0x43); /* binary, mode 0, LSB/MSB, Ch 0 */ outb(HZ_TIME & 0xff, 0x40); /* LSB of count */ outb(HZ_TIME >> 8, 0x40); setup_irq(IRQ_TIMER, &shark_timer_irq); } static struct sys_timer shark_timer = { .init = shark_timer_init, }; MACHINE_START(SHARK, "Shark") /* Maintainer: Alexander Schulz */ .phys_io = 0x40000000, .io_pg_offst = ((0xe0000000) >> 18) & 0xfffc, .boot_params = 0x08003000, .map_io = shark_map_io, .init_irq = shark_init_irq, .timer = &shark_timer, MACHINE_END