Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-sa1100/simpad.c |
| 3 | */ |
| 4 | |
| 5 | #include <linux/config.h> |
| 6 | #include <linux/module.h> |
| 7 | #include <linux/init.h> |
| 8 | #include <linux/kernel.h> |
| 9 | #include <linux/tty.h> |
| 10 | #include <linux/proc_fs.h> |
| 11 | #include <linux/string.h> |
| 12 | #include <linux/pm.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 13 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/mtd/mtd.h> |
| 15 | #include <linux/mtd/partitions.h> |
| 16 | |
| 17 | #include <asm/irq.h> |
| 18 | #include <asm/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> |
Russell King | 323cdfc | 2005-08-18 10:10:46 +0100 | [diff] [blame] | 26 | #include <asm/arch/mcp.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <asm/arch/simpad.h> |
| 28 | |
| 29 | #include <linux/serial_core.h> |
| 30 | #include <linux/ioport.h> |
| 31 | #include <asm/io.h> |
| 32 | |
| 33 | #include "generic.h" |
| 34 | |
| 35 | long cs3_shadow; |
| 36 | |
| 37 | long get_cs3_shadow(void) |
| 38 | { |
| 39 | return cs3_shadow; |
| 40 | } |
| 41 | |
| 42 | void set_cs3(long value) |
| 43 | { |
| 44 | *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value; |
| 45 | } |
| 46 | |
| 47 | void set_cs3_bit(int value) |
| 48 | { |
| 49 | cs3_shadow |= value; |
| 50 | *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; |
| 51 | } |
| 52 | |
| 53 | void clear_cs3_bit(int value) |
| 54 | { |
| 55 | cs3_shadow &= ~value; |
| 56 | *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow; |
| 57 | } |
| 58 | |
| 59 | EXPORT_SYMBOL(set_cs3_bit); |
| 60 | EXPORT_SYMBOL(clear_cs3_bit); |
| 61 | |
| 62 | static struct map_desc simpad_io_desc[] __initdata = { |
Deepak Saxena | 92519d8 | 2005-10-28 15:19:04 +0100 | [diff] [blame] | 63 | { /* MQ200 */ |
| 64 | .virtual = 0xf2800000, |
| 65 | .pfn = __phys_to_pfn(0x4b800000), |
| 66 | .length = 0x00800000, |
| 67 | .type = MT_DEVICE |
| 68 | }, { /* Paules CS3, write only */ |
| 69 | .virtual = 0xf1000000, |
| 70 | .pfn = __phys_to_pfn(0x18000000), |
| 71 | .length = 0x00100000, |
| 72 | .type = MT_DEVICE |
| 73 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | }; |
| 75 | |
| 76 | |
| 77 | static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate) |
| 78 | { |
| 79 | if (port->mapbase == (u_int)&Ser1UTCR0) { |
| 80 | if (state) |
| 81 | { |
| 82 | clear_cs3_bit(RS232_ON); |
| 83 | clear_cs3_bit(DECT_POWER_ON); |
| 84 | }else |
| 85 | { |
| 86 | set_cs3_bit(RS232_ON); |
| 87 | set_cs3_bit(DECT_POWER_ON); |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | static struct sa1100_port_fns simpad_port_fns __initdata = { |
| 93 | .pm = simpad_uart_pm, |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | static struct mtd_partition simpad_partitions[] = { |
| 98 | { |
| 99 | .name = "SIMpad boot firmware", |
| 100 | .size = 0x00080000, |
| 101 | .offset = 0, |
| 102 | .mask_flags = MTD_WRITEABLE, |
| 103 | }, { |
| 104 | .name = "SIMpad kernel", |
| 105 | .size = 0x0010000, |
| 106 | .offset = MTDPART_OFS_APPEND, |
| 107 | }, { |
| 108 | .name = "SIMpad root jffs2", |
| 109 | .size = MTDPART_SIZ_FULL, |
| 110 | .offset = MTDPART_OFS_APPEND, |
| 111 | } |
| 112 | }; |
| 113 | |
| 114 | static struct flash_platform_data simpad_flash_data = { |
| 115 | .map_name = "cfi_probe", |
| 116 | .parts = simpad_partitions, |
| 117 | .nr_parts = ARRAY_SIZE(simpad_partitions), |
| 118 | }; |
| 119 | |
| 120 | |
| 121 | static struct resource simpad_flash_resources [] = { |
| 122 | { |
| 123 | .start = SA1100_CS0_PHYS, |
| 124 | .end = SA1100_CS0_PHYS + SZ_16M -1, |
| 125 | .flags = IORESOURCE_MEM, |
| 126 | }, { |
| 127 | .start = SA1100_CS1_PHYS, |
| 128 | .end = SA1100_CS1_PHYS + SZ_16M -1, |
| 129 | .flags = IORESOURCE_MEM, |
| 130 | } |
| 131 | }; |
| 132 | |
Russell King | 323cdfc | 2005-08-18 10:10:46 +0100 | [diff] [blame] | 133 | static struct mcp_plat_data simpad_mcp_data = { |
| 134 | .mccr0 = MCCR0_ADM, |
| 135 | .sclk_rate = 11981000, |
| 136 | }; |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | |
| 140 | static void __init simpad_map_io(void) |
| 141 | { |
| 142 | sa1100_map_io(); |
| 143 | |
| 144 | iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc)); |
| 145 | |
| 146 | set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON | |
| 147 | ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON); |
| 148 | |
| 149 | |
| 150 | sa1100_register_uart_fns(&simpad_port_fns); |
| 151 | sa1100_register_uart(0, 3); /* serial interface */ |
| 152 | sa1100_register_uart(1, 1); /* DECT */ |
| 153 | |
| 154 | // Reassign UART 1 pins |
| 155 | GAFR |= GPIO_UART_TXD | GPIO_UART_RXD; |
| 156 | GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15; |
| 157 | GPDR &= ~GPIO_UART_RXD; |
| 158 | PPAR |= PPAR_UPR; |
| 159 | |
| 160 | /* |
| 161 | * Set up registers for sleep mode. |
| 162 | */ |
| 163 | |
| 164 | |
| 165 | PWER = PWER_GPIO0| PWER_RTC; |
| 166 | PGSR = 0x818; |
| 167 | PCFR = 0; |
| 168 | PSDR = 0; |
| 169 | |
| 170 | sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources, |
| 171 | ARRAY_SIZE(simpad_flash_resources)); |
Russell King | 323cdfc | 2005-08-18 10:10:46 +0100 | [diff] [blame] | 172 | sa11x0_set_mcp_data(&simpad_mcp_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | static void simpad_power_off(void) |
| 176 | { |
| 177 | local_irq_disable(); // was cli |
| 178 | set_cs3(0x800); /* only SD_MEDIAQ */ |
| 179 | |
| 180 | /* disable internal oscillator, float CS lines */ |
| 181 | PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS); |
| 182 | /* enable wake-up on GPIO0 (Assabet...) */ |
| 183 | PWER = GFER = GRER = 1; |
| 184 | /* |
| 185 | * set scratchpad to zero, just in case it is used as a |
| 186 | * restart address by the bootloader. |
| 187 | */ |
| 188 | PSPR = 0; |
| 189 | PGSR = 0; |
| 190 | /* enter sleep mode */ |
| 191 | PMCR = PMCR_SF; |
| 192 | while(1); |
| 193 | |
| 194 | local_irq_enable(); /* we won't ever call it */ |
| 195 | |
| 196 | |
| 197 | } |
| 198 | |
| 199 | |
| 200 | /* |
| 201 | * MediaQ Video Device |
| 202 | */ |
| 203 | static struct platform_device simpad_mq200fb = { |
| 204 | .name = "simpad-mq200", |
| 205 | .id = 0, |
| 206 | }; |
| 207 | |
| 208 | static struct platform_device *devices[] __initdata = { |
| 209 | &simpad_mq200fb |
| 210 | }; |
| 211 | |
| 212 | |
| 213 | |
| 214 | static int __init simpad_init(void) |
| 215 | { |
| 216 | int ret; |
| 217 | |
| 218 | pm_power_off = simpad_power_off; |
| 219 | |
| 220 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 221 | if(ret) |
| 222 | printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device"); |
| 223 | |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | arch_initcall(simpad_init); |
| 228 | |
| 229 | |
| 230 | MACHINE_START(SIMPAD, "Simpad") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 231 | /* Maintainer: Holger Freyther */ |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 232 | .phys_io = 0x80000000, |
| 233 | .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, |
| 234 | .boot_params = 0xc0000100, |
| 235 | .map_io = simpad_map_io, |
| 236 | .init_irq = sa1100_init_irq, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | .timer = &sa1100_timer, |
| 238 | MACHINE_END |