/* * linux/arch/arm/mach-sa1100/simpad.c */ #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/tty.h> #include <linux/proc_fs.h> #include <linux/string.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <asm/irq.h> #include <asm/hardware.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/map.h> #include <asm/mach/serial_sa1100.h> #include <asm/arch/mcp.h> #include <asm/arch/simpad.h> #include <linux/serial_core.h> #include <linux/ioport.h> #include <asm/io.h> #include "generic.h" long cs3_shadow; long get_cs3_shadow(void) { return cs3_shadow; } void set_cs3(long value) { *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value; } void set_cs3_bit(int value) { cs3_shadow |= value; *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; } void clear_cs3_bit(int value) { cs3_shadow &= ~value; *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; } EXPORT_SYMBOL(set_cs3_bit); EXPORT_SYMBOL(clear_cs3_bit); static struct map_desc simpad_io_desc[] __initdata = { { /* MQ200 */ .virtual = 0xf2800000, .pfn = __phys_to_pfn(0x4b800000), .length = 0x00800000, .type = MT_DEVICE }, { /* Paules CS3, write only */ .virtual = 0xf1000000, .pfn = __phys_to_pfn(0x18000000), .length = 0x00100000, .type = MT_DEVICE }, }; static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate) { if (port->mapbase == (u_int)&Ser1UTCR0) { if (state) { clear_cs3_bit(RS232_ON); clear_cs3_bit(DECT_POWER_ON); }else { set_cs3_bit(RS232_ON); set_cs3_bit(DECT_POWER_ON); } } } static struct sa1100_port_fns simpad_port_fns __initdata = { .pm = simpad_uart_pm, }; static struct mtd_partition simpad_partitions[] = { { .name = "SIMpad boot firmware", .size = 0x00080000, .offset = 0, .mask_flags = MTD_WRITEABLE, }, { .name = "SIMpad kernel", .size = 0x0010000, .offset = MTDPART_OFS_APPEND, }, { .name = "SIMpad root jffs2", .size = MTDPART_SIZ_FULL, .offset = MTDPART_OFS_APPEND, } }; static struct flash_platform_data simpad_flash_data = { .map_name = "cfi_probe", .parts = simpad_partitions, .nr_parts = ARRAY_SIZE(simpad_partitions), }; static struct resource simpad_flash_resources [] = { { .start = SA1100_CS0_PHYS, .end = SA1100_CS0_PHYS + SZ_16M -1, .flags = IORESOURCE_MEM, }, { .start = SA1100_CS1_PHYS, .end = SA1100_CS1_PHYS + SZ_16M -1, .flags = IORESOURCE_MEM, } }; static struct mcp_plat_data simpad_mcp_data = { .mccr0 = MCCR0_ADM, .sclk_rate = 11981000, }; static void __init simpad_map_io(void) { sa1100_map_io(); iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc)); set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON | ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON); sa1100_register_uart_fns(&simpad_port_fns); sa1100_register_uart(0, 3); /* serial interface */ sa1100_register_uart(1, 1); /* DECT */ // Reassign UART 1 pins GAFR |= GPIO_UART_TXD | GPIO_UART_RXD; GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15; GPDR &= ~GPIO_UART_RXD; PPAR |= PPAR_UPR; /* * Set up registers for sleep mode. */ PWER = PWER_GPIO0| PWER_RTC; PGSR = 0x818; PCFR = 0; PSDR = 0; sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources, ARRAY_SIZE(simpad_flash_resources)); sa11x0_set_mcp_data(&simpad_mcp_data); } static void simpad_power_off(void) { local_irq_disable(); // was cli set_cs3(0x800); /* only SD_MEDIAQ */ /* disable internal oscillator, float CS lines */ PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS); /* enable wake-up on GPIO0 (Assabet...) */ PWER = GFER = GRER = 1; /* * set scratchpad to zero, just in case it is used as a * restart address by the bootloader. */ PSPR = 0; PGSR = 0; /* enter sleep mode */ PMCR = PMCR_SF; while(1); local_irq_enable(); /* we won't ever call it */ } /* * MediaQ Video Device */ static struct platform_device simpad_mq200fb = { .name = "simpad-mq200", .id = 0, }; static struct platform_device *devices[] __initdata = { &simpad_mq200fb }; static int __init simpad_init(void) { int ret; pm_power_off = simpad_power_off; ret = platform_add_devices(devices, ARRAY_SIZE(devices)); if(ret) printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device"); return 0; } arch_initcall(simpad_init); MACHINE_START(SIMPAD, "Simpad") /* Maintainer: Holger Freyther */ .phys_io = 0x80000000, .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, .boot_params = 0xc0000100, .map_io = simpad_map_io, .init_irq = sa1100_init_irq, .timer = &sa1100_timer, MACHINE_END