1 /* 2 * linux/arch/arm/mach-sa1100/jornada720.c 3 * 4 * HP Jornada720 init code 5 * 6 * Copyright (C) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com> 7 * Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl> 8 * Copyright (C) 2005 Michael Gernoth <michael@gernoth.net> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 * 14 */ 15 16 #include <linux/init.h> 17 #include <linux/kernel.h> 18 #include <linux/tty.h> 19 #include <linux/delay.h> 20 #include <linux/gpio/machine.h> 21 #include <linux/platform_data/sa11x0-serial.h> 22 #include <linux/platform_device.h> 23 #include <linux/ioport.h> 24 #include <linux/mtd/mtd.h> 25 #include <linux/mtd/partitions.h> 26 #include <video/s1d13xxxfb.h> 27 28 #include <asm/hardware/sa1111.h> 29 #include <asm/page.h> 30 #include <asm/mach-types.h> 31 #include <asm/setup.h> 32 #include <asm/mach/arch.h> 33 #include <asm/mach/flash.h> 34 #include <asm/mach/map.h> 35 36 #include <mach/hardware.h> 37 #include <mach/irqs.h> 38 39 #include "generic.h" 40 41 /* 42 * HP Documentation referred in this file: 43 * http://www.jlime.com/downloads/development/docs/jornada7xx/jornada720.txt 44 */ 45 46 /* line 110 of HP's doc */ 47 #define TUCR_VAL 0x20000400 48 49 /* memory space (line 52 of HP's doc) */ 50 #define SA1111REGSTART 0x40000000 51 #define SA1111REGLEN 0x00002000 52 #define EPSONREGSTART 0x48000000 53 #define EPSONREGLEN 0x00100000 54 #define EPSONFBSTART 0x48200000 55 /* 512kB framebuffer */ 56 #define EPSONFBLEN 512*1024 57 58 static struct s1d13xxxfb_regval s1d13xxxfb_initregs[] = { 59 /* line 344 of HP's doc */ 60 {0x0001,0x00}, // Miscellaneous Register 61 {0x01FC,0x00}, // Display Mode Register 62 {0x0004,0x00}, // General IO Pins Configuration Register 0 63 {0x0005,0x00}, // General IO Pins Configuration Register 1 64 {0x0008,0x00}, // General IO Pins Control Register 0 65 {0x0009,0x00}, // General IO Pins Control Register 1 66 {0x0010,0x01}, // Memory Clock Configuration Register 67 {0x0014,0x11}, // LCD Pixel Clock Configuration Register 68 {0x0018,0x01}, // CRT/TV Pixel Clock Configuration Register 69 {0x001C,0x01}, // MediaPlug Clock Configuration Register 70 {0x001E,0x01}, // CPU To Memory Wait State Select Register 71 {0x0020,0x00}, // Memory Configuration Register 72 {0x0021,0x45}, // DRAM Refresh Rate Register 73 {0x002A,0x01}, // DRAM Timings Control Register 0 74 {0x002B,0x03}, // DRAM Timings Control Register 1 75 {0x0030,0x1c}, // Panel Type Register 76 {0x0031,0x00}, // MOD Rate Register 77 {0x0032,0x4F}, // LCD Horizontal Display Width Register 78 {0x0034,0x07}, // LCD Horizontal Non-Display Period Register 79 {0x0035,0x01}, // TFT FPLINE Start Position Register 80 {0x0036,0x0B}, // TFT FPLINE Pulse Width Register 81 {0x0038,0xEF}, // LCD Vertical Display Height Register 0 82 {0x0039,0x00}, // LCD Vertical Display Height Register 1 83 {0x003A,0x13}, // LCD Vertical Non-Display Period Register 84 {0x003B,0x0B}, // TFT FPFRAME Start Position Register 85 {0x003C,0x01}, // TFT FPFRAME Pulse Width Register 86 {0x0040,0x05}, // LCD Display Mode Register (2:4bpp,3:8bpp,5:16bpp) 87 {0x0041,0x00}, // LCD Miscellaneous Register 88 {0x0042,0x00}, // LCD Display Start Address Register 0 89 {0x0043,0x00}, // LCD Display Start Address Register 1 90 {0x0044,0x00}, // LCD Display Start Address Register 2 91 {0x0046,0x80}, // LCD Memory Address Offset Register 0 92 {0x0047,0x02}, // LCD Memory Address Offset Register 1 93 {0x0048,0x00}, // LCD Pixel Panning Register 94 {0x004A,0x00}, // LCD Display FIFO High Threshold Control Register 95 {0x004B,0x00}, // LCD Display FIFO Low Threshold Control Register 96 {0x0050,0x4F}, // CRT/TV Horizontal Display Width Register 97 {0x0052,0x13}, // CRT/TV Horizontal Non-Display Period Register 98 {0x0053,0x01}, // CRT/TV HRTC Start Position Register 99 {0x0054,0x0B}, // CRT/TV HRTC Pulse Width Register 100 {0x0056,0xDF}, // CRT/TV Vertical Display Height Register 0 101 {0x0057,0x01}, // CRT/TV Vertical Display Height Register 1 102 {0x0058,0x2B}, // CRT/TV Vertical Non-Display Period Register 103 {0x0059,0x09}, // CRT/TV VRTC Start Position Register 104 {0x005A,0x01}, // CRT/TV VRTC Pulse Width Register 105 {0x005B,0x10}, // TV Output Control Register 106 {0x0060,0x03}, // CRT/TV Display Mode Register (2:4bpp,3:8bpp,5:16bpp) 107 {0x0062,0x00}, // CRT/TV Display Start Address Register 0 108 {0x0063,0x00}, // CRT/TV Display Start Address Register 1 109 {0x0064,0x00}, // CRT/TV Display Start Address Register 2 110 {0x0066,0x40}, // CRT/TV Memory Address Offset Register 0 111 {0x0067,0x01}, // CRT/TV Memory Address Offset Register 1 112 {0x0068,0x00}, // CRT/TV Pixel Panning Register 113 {0x006A,0x00}, // CRT/TV Display FIFO High Threshold Control Register 114 {0x006B,0x00}, // CRT/TV Display FIFO Low Threshold Control Register 115 {0x0070,0x00}, // LCD Ink/Cursor Control Register 116 {0x0071,0x01}, // LCD Ink/Cursor Start Address Register 117 {0x0072,0x00}, // LCD Cursor X Position Register 0 118 {0x0073,0x00}, // LCD Cursor X Position Register 1 119 {0x0074,0x00}, // LCD Cursor Y Position Register 0 120 {0x0075,0x00}, // LCD Cursor Y Position Register 1 121 {0x0076,0x00}, // LCD Ink/Cursor Blue Color 0 Register 122 {0x0077,0x00}, // LCD Ink/Cursor Green Color 0 Register 123 {0x0078,0x00}, // LCD Ink/Cursor Red Color 0 Register 124 {0x007A,0x1F}, // LCD Ink/Cursor Blue Color 1 Register 125 {0x007B,0x3F}, // LCD Ink/Cursor Green Color 1 Register 126 {0x007C,0x1F}, // LCD Ink/Cursor Red Color 1 Register 127 {0x007E,0x00}, // LCD Ink/Cursor FIFO Threshold Register 128 {0x0080,0x00}, // CRT/TV Ink/Cursor Control Register 129 {0x0081,0x01}, // CRT/TV Ink/Cursor Start Address Register 130 {0x0082,0x00}, // CRT/TV Cursor X Position Register 0 131 {0x0083,0x00}, // CRT/TV Cursor X Position Register 1 132 {0x0084,0x00}, // CRT/TV Cursor Y Position Register 0 133 {0x0085,0x00}, // CRT/TV Cursor Y Position Register 1 134 {0x0086,0x00}, // CRT/TV Ink/Cursor Blue Color 0 Register 135 {0x0087,0x00}, // CRT/TV Ink/Cursor Green Color 0 Register 136 {0x0088,0x00}, // CRT/TV Ink/Cursor Red Color 0 Register 137 {0x008A,0x1F}, // CRT/TV Ink/Cursor Blue Color 1 Register 138 {0x008B,0x3F}, // CRT/TV Ink/Cursor Green Color 1 Register 139 {0x008C,0x1F}, // CRT/TV Ink/Cursor Red Color 1 Register 140 {0x008E,0x00}, // CRT/TV Ink/Cursor FIFO Threshold Register 141 {0x0100,0x00}, // BitBlt Control Register 0 142 {0x0101,0x00}, // BitBlt Control Register 1 143 {0x0102,0x00}, // BitBlt ROP Code/Color Expansion Register 144 {0x0103,0x00}, // BitBlt Operation Register 145 {0x0104,0x00}, // BitBlt Source Start Address Register 0 146 {0x0105,0x00}, // BitBlt Source Start Address Register 1 147 {0x0106,0x00}, // BitBlt Source Start Address Register 2 148 {0x0108,0x00}, // BitBlt Destination Start Address Register 0 149 {0x0109,0x00}, // BitBlt Destination Start Address Register 1 150 {0x010A,0x00}, // BitBlt Destination Start Address Register 2 151 {0x010C,0x00}, // BitBlt Memory Address Offset Register 0 152 {0x010D,0x00}, // BitBlt Memory Address Offset Register 1 153 {0x0110,0x00}, // BitBlt Width Register 0 154 {0x0111,0x00}, // BitBlt Width Register 1 155 {0x0112,0x00}, // BitBlt Height Register 0 156 {0x0113,0x00}, // BitBlt Height Register 1 157 {0x0114,0x00}, // BitBlt Background Color Register 0 158 {0x0115,0x00}, // BitBlt Background Color Register 1 159 {0x0118,0x00}, // BitBlt Foreground Color Register 0 160 {0x0119,0x00}, // BitBlt Foreground Color Register 1 161 {0x01E0,0x00}, // Look-Up Table Mode Register 162 {0x01E2,0x00}, // Look-Up Table Address Register 163 /* not sure, wouldn't like to mess with the driver */ 164 {0x01E4,0x00}, // Look-Up Table Data Register 165 /* jornada doc says 0x00, but I trust the driver */ 166 {0x01F0,0x10}, // Power Save Configuration Register 167 {0x01F1,0x00}, // Power Save Status Register 168 {0x01F4,0x00}, // CPU-to-Memory Access Watchdog Timer Register 169 {0x01FC,0x01}, // Display Mode Register(0x01:LCD, 0x02:CRT, 0x03:LCD&CRT) 170 }; 171 172 static struct s1d13xxxfb_pdata s1d13xxxfb_data = { 173 .initregs = s1d13xxxfb_initregs, 174 .initregssize = ARRAY_SIZE(s1d13xxxfb_initregs), 175 .platform_init_video = NULL 176 }; 177 178 static struct resource s1d13xxxfb_resources[] = { 179 [0] = DEFINE_RES_MEM(EPSONFBSTART, EPSONFBLEN), 180 [1] = DEFINE_RES_MEM(EPSONREGSTART, EPSONREGLEN), 181 }; 182 183 static struct platform_device s1d13xxxfb_device = { 184 .name = S1D_DEVICENAME, 185 .id = 0, 186 .dev = { 187 .platform_data = &s1d13xxxfb_data, 188 }, 189 .num_resources = ARRAY_SIZE(s1d13xxxfb_resources), 190 .resource = s1d13xxxfb_resources, 191 }; 192 193 static struct resource sa1111_resources[] = { 194 [0] = DEFINE_RES_MEM(SA1111REGSTART, SA1111REGLEN), 195 [1] = DEFINE_RES_IRQ(IRQ_GPIO1), 196 }; 197 198 static struct sa1111_platform_data sa1111_info = { 199 .disable_devs = SA1111_DEVID_PS2_MSE, 200 }; 201 202 static u64 sa1111_dmamask = 0xffffffffUL; 203 204 static struct platform_device sa1111_device = { 205 .name = "sa1111", 206 .id = 0, 207 .dev = { 208 .dma_mask = &sa1111_dmamask, 209 .coherent_dma_mask = 0xffffffff, 210 .platform_data = &sa1111_info, 211 }, 212 .num_resources = ARRAY_SIZE(sa1111_resources), 213 .resource = sa1111_resources, 214 }; 215 216 static struct platform_device jornada_ssp_device = { 217 .name = "jornada_ssp", 218 .id = -1, 219 }; 220 221 static struct resource jornada_kbd_resources[] = { 222 DEFINE_RES_IRQ(IRQ_GPIO0), 223 }; 224 225 static struct platform_device jornada_kbd_device = { 226 .name = "jornada720_kbd", 227 .id = -1, 228 .num_resources = ARRAY_SIZE(jornada_kbd_resources), 229 .resource = jornada_kbd_resources, 230 }; 231 232 static struct gpiod_lookup_table jornada_ts_gpiod_table = { 233 .dev_id = "jornada_ts", 234 .table = { 235 GPIO_LOOKUP("gpio", 9, "penup", GPIO_ACTIVE_HIGH), 236 }, 237 }; 238 239 static struct platform_device jornada_ts_device = { 240 .name = "jornada_ts", 241 .id = -1, 242 }; 243 244 static struct platform_device *devices[] __initdata = { 245 &sa1111_device, 246 &jornada_ssp_device, 247 &s1d13xxxfb_device, 248 &jornada_kbd_device, 249 &jornada_ts_device, 250 }; 251 252 static int __init jornada720_init(void) 253 { 254 int ret = -ENODEV; 255 256 if (machine_is_jornada720()) { 257 /* we want to use gpio20 as input to drive the clock of our uart 3 */ 258 GPDR |= GPIO_GPIO20; /* Clear gpio20 pin as input */ 259 TUCR = TUCR_VAL; 260 GPSR = GPIO_GPIO20; /* start gpio20 pin */ 261 udelay(1); 262 GPCR = GPIO_GPIO20; /* stop gpio20 */ 263 udelay(1); 264 GPSR = GPIO_GPIO20; /* restart gpio20 */ 265 udelay(20); /* give it some time to restart */ 266 267 gpiod_add_lookup_table(&jornada_ts_gpiod_table); 268 269 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 270 } 271 272 return ret; 273 } 274 275 arch_initcall(jornada720_init); 276 277 static struct map_desc jornada720_io_desc[] __initdata = { 278 { /* Epson registers */ 279 .virtual = 0xf0000000, 280 .pfn = __phys_to_pfn(EPSONREGSTART), 281 .length = EPSONREGLEN, 282 .type = MT_DEVICE 283 }, { /* Epson frame buffer */ 284 .virtual = 0xf1000000, 285 .pfn = __phys_to_pfn(EPSONFBSTART), 286 .length = EPSONFBLEN, 287 .type = MT_DEVICE 288 } 289 }; 290 291 static void __init jornada720_map_io(void) 292 { 293 sa1100_map_io(); 294 iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc)); 295 296 sa1100_register_uart(0, 3); 297 sa1100_register_uart(1, 1); 298 } 299 300 static struct mtd_partition jornada720_partitions[] = { 301 { 302 .name = "JORNADA720 boot firmware", 303 .size = 0x00040000, 304 .offset = 0, 305 .mask_flags = MTD_WRITEABLE, /* force read-only */ 306 }, { 307 .name = "JORNADA720 kernel", 308 .size = 0x000c0000, 309 .offset = 0x00040000, 310 }, { 311 .name = "JORNADA720 params", 312 .size = 0x00040000, 313 .offset = 0x00100000, 314 }, { 315 .name = "JORNADA720 initrd", 316 .size = 0x00100000, 317 .offset = 0x00140000, 318 }, { 319 .name = "JORNADA720 root cramfs", 320 .size = 0x00300000, 321 .offset = 0x00240000, 322 }, { 323 .name = "JORNADA720 usr cramfs", 324 .size = 0x00800000, 325 .offset = 0x00540000, 326 }, { 327 .name = "JORNADA720 usr local", 328 .size = 0, /* will expand to the end of the flash */ 329 .offset = 0x00d00000, 330 } 331 }; 332 333 static void jornada720_set_vpp(int vpp) 334 { 335 if (vpp) 336 /* enabling flash write (line 470 of HP's doc) */ 337 PPSR |= PPC_LDD7; 338 else 339 /* disabling flash write (line 470 of HP's doc) */ 340 PPSR &= ~PPC_LDD7; 341 PPDR |= PPC_LDD7; 342 } 343 344 static struct flash_platform_data jornada720_flash_data = { 345 .map_name = "cfi_probe", 346 .set_vpp = jornada720_set_vpp, 347 .parts = jornada720_partitions, 348 .nr_parts = ARRAY_SIZE(jornada720_partitions), 349 }; 350 351 static struct resource jornada720_flash_resource = 352 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M); 353 354 static void __init jornada720_mach_init(void) 355 { 356 sa11x0_register_mtd(&jornada720_flash_data, &jornada720_flash_resource, 1); 357 } 358 359 MACHINE_START(JORNADA720, "HP Jornada 720") 360 /* Maintainer: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> */ 361 .atag_offset = 0x100, 362 .map_io = jornada720_map_io, 363 .nr_irqs = SA1100_NR_IRQS, 364 .init_irq = sa1100_init_irq, 365 .init_time = sa1100_timer_init, 366 .init_machine = jornada720_mach_init, 367 .init_late = sa11x0_init_late, 368 #ifdef CONFIG_SA1111 369 .dma_zone_size = SZ_1M, 370 #endif 371 .restart = sa11x0_restart, 372 MACHINE_END 373