/* * linux/arch/arm/mach-sa1100/simpad.c * */ #include <linux/config.h> #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 <asm/hardware.h> #include <asm/setup.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/serial_sa1100.h> #include <linux/serial_core.h> #include "generic.h" long cs3_shadow; long get_cs3_shadow() { return cs3_shadow; } 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; } static void __init fixup_simpad(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) { #ifdef CONFIG_SA1100_SIMPAD_DRAM_64MB /* DRAM */ SET_BANK( 0, 0xc0000000, 64*1024*1024 ); #else SET_BANK( 0, 0xc0000000, 32*1024*1024 ); #endif mi->nr_banks = 1; ROOT_DEV = mk_kdev(RAMDISK_MAJOR,0); setup_ramdisk( 1, 0, 0, 8192 ); setup_initrd( __phys_to_virt(0xc0800000), 4*1024*1024 ); } static struct map_desc simpad_io_desc[] __initdata = { /* virtual physical length domain r w c b */ { 0xf2800000, 0x4b800000, 0x00800000, DOMAIN_IO, 0, 1, 0, 0 }, /* MQ200 */ { 0xf1000000, 0x18000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* Paules CS3, write only */ LAST_DESC }; 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); else set_cs3_bit(RS232_ON); } } static struct sa1100_port_fns simpad_port_fns __initdata = { pm: simpad_uart_pm, }; static void __init simpad_map_io(void) { sa1100_map_io(); iotable_init(simpad_io_desc); PSPR = 0xc0008000; GPDR &= ~GPIO_GPIO0; cs3_shadow = (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON | ENABLE_5V | RESET_SIMCARD); *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; //It is only possible to register 3 UART in serial_sa1100.c sa1100_register_uart(0, 3); sa1100_register_uart(1, 1); set_irq_type(IRQ_GPIO_UCB1300_IRQ, IRQT_RISING); } #ifdef CONFIG_PROC_FS static char* name[]={ "VCC_5V_EN", "VCC_3V_EN", "EN1", "EN0", "DISPLAY_ON", "PCMCIA_BUFF_DIS", "MQ_RESET", "PCMCIA_RESET", "DECT_POWER_ON", "IRDA_SD", "RS232_ON", "SD_MEDIAQ", "LED2_ON", "IRDA_MODE", "ENABLE_5V", "RESET_SIMCARD" }; static int proc_cs3_read(char *page, char **start, off_t off, int count, int *eof, void *data) { char *p = page; int len, i; p += sprintf(p, "Chipselect3 : %x\n", cs3_shadow); for (i = 0; i <= 15; i++) { if(cs3_shadow & (1<<i)) { p += sprintf(p, "%s\t: TRUE \n",name[i]); } else p += sprintf(p, "%s\t: FALSE \n",name[i]); } len = (p - page) - off; if (len < 0) len = 0; *eof = (len <= count) ? 1 : 0; *start = page + off; return len; } static struct proc_dir_entry *proc_cs3; static int __init cs3_init(void) { proc_cs3 = create_proc_entry("cs3", 0, 0); if (proc_cs3) proc_cs3->read_proc = proc_cs3_read; return 0; } static int __exit cs3_exit(void) { if (proc_cs3) remove_proc_entry( "cs3", 0); return 0; } __initcall(cs3_init); #endif // CONFIG_PROC_FS MACHINE_START(SIMPAD, "Simpad") MAINTAINER("Juergen Messerer") BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000) FIXUP(fixup_simpad) MAPIO(simpad_map_io) INITIRQ(sa1100_init_irq) MACHINE_END