1/* 2 * linux/arch/arm/mach-sa1100/simpad.c 3 */ 4 5#include <linux/module.h> 6#include <linux/init.h> 7#include <linux/kernel.h> 8#include <linux/tty.h> 9#include <linux/proc_fs.h> 10#include <linux/string.h> 11#include <linux/pm.h> 12#include <linux/platform_device.h> 13#include <linux/mtd/mtd.h> 14#include <linux/mtd/partitions.h> 15#include <linux/io.h> 16 17#include <asm/irq.h> 18#include <mach/hardware.h> 19#include <asm/setup.h> 20 21#include <asm/mach-types.h> 22#include <asm/mach/arch.h> 23#include <asm/mach/flash.h> 24#include <asm/mach/map.h> 25#include <asm/mach/serial_sa1100.h> 26#include <mach/mcp.h> 27#include <mach/simpad.h> 28 29#include <linux/serial_core.h> 30#include <linux/ioport.h> 31 32#include "generic.h" 33 34long cs3_shadow; 35 36long get_cs3_shadow(void) 37{ 38 return cs3_shadow; 39} 40 41void set_cs3(long value) 42{ 43 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value; 44} 45 46void set_cs3_bit(int value) 47{ 48 cs3_shadow |= value; 49 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; 50} 51 52void clear_cs3_bit(int value) 53{ 54 cs3_shadow &= ~value; 55 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; 56} 57 58EXPORT_SYMBOL(set_cs3_bit); 59EXPORT_SYMBOL(clear_cs3_bit); 60 61static struct map_desc simpad_io_desc[] __initdata = { 62 { /* MQ200 */ 63 .virtual = 0xf2800000, 64 .pfn = __phys_to_pfn(0x4b800000), 65 .length = 0x00800000, 66 .type = MT_DEVICE 67 }, { /* Paules CS3, write only */ 68 .virtual = 0xf1000000, 69 .pfn = __phys_to_pfn(0x18000000), 70 .length = 0x00100000, 71 .type = MT_DEVICE 72 }, 73}; 74 75 76static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate) 77{ 78 if (port->mapbase == (u_int)&Ser1UTCR0) { 79 if (state) 80 { 81 clear_cs3_bit(RS232_ON); 82 clear_cs3_bit(DECT_POWER_ON); 83 }else 84 { 85 set_cs3_bit(RS232_ON); 86 set_cs3_bit(DECT_POWER_ON); 87 } 88 } 89} 90 91static struct sa1100_port_fns simpad_port_fns __initdata = { 92 .pm = simpad_uart_pm, 93}; 94 95 96static struct mtd_partition simpad_partitions[] = { 97 { 98 .name = "SIMpad boot firmware", 99 .size = 0x00080000, 100 .offset = 0, 101 .mask_flags = MTD_WRITEABLE, 102 }, { 103 .name = "SIMpad kernel", 104 .size = 0x0010000, 105 .offset = MTDPART_OFS_APPEND, 106 }, { 107 .name = "SIMpad root jffs2", 108 .size = MTDPART_SIZ_FULL, 109 .offset = MTDPART_OFS_APPEND, 110 } 111}; 112 113static struct flash_platform_data simpad_flash_data = { 114 .map_name = "cfi_probe", 115 .parts = simpad_partitions, 116 .nr_parts = ARRAY_SIZE(simpad_partitions), 117}; 118 119 120static struct resource simpad_flash_resources [] = { 121 { 122 .start = SA1100_CS0_PHYS, 123 .end = SA1100_CS0_PHYS + SZ_16M -1, 124 .flags = IORESOURCE_MEM, 125 }, { 126 .start = SA1100_CS1_PHYS, 127 .end = SA1100_CS1_PHYS + SZ_16M -1, 128 .flags = IORESOURCE_MEM, 129 } 130}; 131 132static struct mcp_plat_data simpad_mcp_data = { 133 .mccr0 = MCCR0_ADM, 134 .sclk_rate = 11981000, 135}; 136 137 138 139static void __init simpad_map_io(void) 140{ 141 sa1100_map_io(); 142 143 iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc)); 144 145 set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON | 146 ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON); 147 148 149 sa1100_register_uart_fns(&simpad_port_fns); 150 sa1100_register_uart(0, 3); /* serial interface */ 151 sa1100_register_uart(1, 1); /* DECT */ 152 153 // Reassign UART 1 pins 154 GAFR |= GPIO_UART_TXD | GPIO_UART_RXD; 155 GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15; 156 GPDR &= ~GPIO_UART_RXD; 157 PPAR |= PPAR_UPR; 158 159 /* 160 * Set up registers for sleep mode. 161 */ 162 163 164 PWER = PWER_GPIO0| PWER_RTC; 165 PGSR = 0x818; 166 PCFR = 0; 167 PSDR = 0; 168 169 sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources, 170 ARRAY_SIZE(simpad_flash_resources)); 171 sa11x0_register_mcp(&simpad_mcp_data); 172} 173 174static void simpad_power_off(void) 175{ 176 local_irq_disable(); // was cli 177 set_cs3(0x800); /* only SD_MEDIAQ */ 178 179 /* disable internal oscillator, float CS lines */ 180 PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS); 181 /* enable wake-up on GPIO0 (Assabet...) */ 182 PWER = GFER = GRER = 1; 183 /* 184 * set scratchpad to zero, just in case it is used as a 185 * restart address by the bootloader. 186 */ 187 PSPR = 0; 188 PGSR = 0; 189 /* enter sleep mode */ 190 PMCR = PMCR_SF; 191 while(1); 192 193 local_irq_enable(); /* we won't ever call it */ 194 195 196} 197 198 199/* 200 * MediaQ Video Device 201 */ 202static struct platform_device simpad_mq200fb = { 203 .name = "simpad-mq200", 204 .id = 0, 205}; 206 207static struct platform_device *devices[] __initdata = { 208 &simpad_mq200fb 209}; 210 211 212 213static int __init simpad_init(void) 214{ 215 int ret; 216 217 pm_power_off = simpad_power_off; 218 219 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 220 if(ret) 221 printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device"); 222 223 return 0; 224} 225 226arch_initcall(simpad_init); 227 228 229MACHINE_START(SIMPAD, "Simpad") 230 /* Maintainer: Holger Freyther */ 231 .phys_io = 0x80000000, 232 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, 233 .boot_params = 0xc0000100, 234 .map_io = simpad_map_io, 235 .init_irq = sa1100_init_irq, 236 .timer = &sa1100_timer, 237MACHINE_END 238