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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | /* * 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 param_struct *params, 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 |