1 /* 2 * arch/sh/boards/renesas/r7780rp/setup.c 3 * 4 * Renesas Solutions Highlander Support. 5 * 6 * Copyright (C) 2002 Atom Create Engineering Co., Ltd. 7 * Copyright (C) 2005 - 2008 Paul Mundt 8 * 9 * This contains support for the R7780RP-1, R7780MP, and R7785RP 10 * Highlander modules. 11 * 12 * This file is subject to the terms and conditions of the GNU General Public 13 * License. See the file "COPYING" in the main directory of this archive 14 * for more details. 15 */ 16 #include <linux/init.h> 17 #include <linux/io.h> 18 #include <linux/platform_device.h> 19 #include <linux/ata_platform.h> 20 #include <linux/types.h> 21 #include <linux/mtd/physmap.h> 22 #include <linux/i2c.h> 23 #include <linux/irq.h> 24 #include <linux/interrupt.h> 25 #include <linux/usb/r8a66597.h> 26 #include <linux/usb/m66592.h> 27 #include <linux/clkdev.h> 28 #include <net/ax88796.h> 29 #include <asm/machvec.h> 30 #include <mach/highlander.h> 31 #include <asm/clock.h> 32 #include <asm/heartbeat.h> 33 #include <asm/io.h> 34 #include <asm/io_trapped.h> 35 36 static struct r8a66597_platdata r8a66597_data = { 37 .xtal = R8A66597_PLATDATA_XTAL_12MHZ, 38 .vif = 1, 39 }; 40 41 static struct resource r8a66597_usb_host_resources[] = { 42 [0] = { 43 .start = 0xA4200000, 44 .end = 0xA42000FF, 45 .flags = IORESOURCE_MEM, 46 }, 47 [1] = { 48 .start = IRQ_EXT1, /* irq number */ 49 .end = IRQ_EXT1, 50 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW, 51 }, 52 }; 53 54 static struct platform_device r8a66597_usb_host_device = { 55 .name = "r8a66597_hcd", 56 .id = -1, 57 .dev = { 58 .dma_mask = NULL, /* don't use dma */ 59 .coherent_dma_mask = 0xffffffff, 60 .platform_data = &r8a66597_data, 61 }, 62 .num_resources = ARRAY_SIZE(r8a66597_usb_host_resources), 63 .resource = r8a66597_usb_host_resources, 64 }; 65 66 static struct m66592_platdata usbf_platdata = { 67 .xtal = M66592_PLATDATA_XTAL_24MHZ, 68 .vif = 1, 69 }; 70 71 static struct resource m66592_usb_peripheral_resources[] = { 72 [0] = { 73 .name = "m66592_udc", 74 .start = 0xb0000000, 75 .end = 0xb00000FF, 76 .flags = IORESOURCE_MEM, 77 }, 78 [1] = { 79 .name = "m66592_udc", 80 .start = IRQ_EXT4, /* irq number */ 81 .end = IRQ_EXT4, 82 .flags = IORESOURCE_IRQ, 83 }, 84 }; 85 86 static struct platform_device m66592_usb_peripheral_device = { 87 .name = "m66592_udc", 88 .id = -1, 89 .dev = { 90 .dma_mask = NULL, /* don't use dma */ 91 .coherent_dma_mask = 0xffffffff, 92 .platform_data = &usbf_platdata, 93 }, 94 .num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources), 95 .resource = m66592_usb_peripheral_resources, 96 }; 97 98 static struct resource cf_ide_resources[] = { 99 [0] = { 100 .start = PA_AREA5_IO + 0x1000, 101 .end = PA_AREA5_IO + 0x1000 + 0x08 - 1, 102 .flags = IORESOURCE_MEM, 103 }, 104 [1] = { 105 .start = PA_AREA5_IO + 0x80c, 106 .end = PA_AREA5_IO + 0x80c + 0x16 - 1, 107 .flags = IORESOURCE_MEM, 108 }, 109 [2] = { 110 .start = IRQ_CF, 111 .flags = IORESOURCE_IRQ, 112 }, 113 }; 114 115 static struct pata_platform_info pata_info = { 116 .ioport_shift = 1, 117 }; 118 119 static struct platform_device cf_ide_device = { 120 .name = "pata_platform", 121 .id = -1, 122 .num_resources = ARRAY_SIZE(cf_ide_resources), 123 .resource = cf_ide_resources, 124 .dev = { 125 .platform_data = &pata_info, 126 }, 127 }; 128 129 static struct resource heartbeat_resources[] = { 130 [0] = { 131 .start = PA_OBLED, 132 .end = PA_OBLED, 133 .flags = IORESOURCE_MEM, 134 }, 135 }; 136 137 #ifndef CONFIG_SH_R7785RP 138 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 }; 139 140 static struct heartbeat_data heartbeat_data = { 141 .bit_pos = heartbeat_bit_pos, 142 .nr_bits = ARRAY_SIZE(heartbeat_bit_pos), 143 }; 144 #endif 145 146 static struct platform_device heartbeat_device = { 147 .name = "heartbeat", 148 .id = -1, 149 150 /* R7785RP has a slightly more sensible FPGA.. */ 151 #ifndef CONFIG_SH_R7785RP 152 .dev = { 153 .platform_data = &heartbeat_data, 154 }, 155 #endif 156 .num_resources = ARRAY_SIZE(heartbeat_resources), 157 .resource = heartbeat_resources, 158 }; 159 160 static struct ax_plat_data ax88796_platdata = { 161 .flags = AXFLG_HAS_93CX6, 162 .wordlength = 2, 163 .dcr_val = 0x1, 164 .rcr_val = 0x40, 165 }; 166 167 static struct resource ax88796_resources[] = { 168 { 169 #ifdef CONFIG_SH_R7780RP 170 .start = 0xa5800400, 171 .end = 0xa5800400 + (0x20 * 0x2) - 1, 172 #else 173 .start = 0xa4100400, 174 .end = 0xa4100400 + (0x20 * 0x2) - 1, 175 #endif 176 .flags = IORESOURCE_MEM, 177 }, 178 { 179 .start = IRQ_AX88796, 180 .end = IRQ_AX88796, 181 .flags = IORESOURCE_IRQ, 182 }, 183 }; 184 185 static struct platform_device ax88796_device = { 186 .name = "ax88796", 187 .id = 0, 188 189 .dev = { 190 .platform_data = &ax88796_platdata, 191 }, 192 193 .num_resources = ARRAY_SIZE(ax88796_resources), 194 .resource = ax88796_resources, 195 }; 196 197 static struct mtd_partition nor_flash_partitions[] = { 198 { 199 .name = "loader", 200 .offset = 0x00000000, 201 .size = 512 * 1024, 202 }, 203 { 204 .name = "bootenv", 205 .offset = MTDPART_OFS_APPEND, 206 .size = 512 * 1024, 207 }, 208 { 209 .name = "kernel", 210 .offset = MTDPART_OFS_APPEND, 211 .size = 4 * 1024 * 1024, 212 }, 213 { 214 .name = "data", 215 .offset = MTDPART_OFS_APPEND, 216 .size = MTDPART_SIZ_FULL, 217 }, 218 }; 219 220 static struct physmap_flash_data nor_flash_data = { 221 .width = 4, 222 .parts = nor_flash_partitions, 223 .nr_parts = ARRAY_SIZE(nor_flash_partitions), 224 }; 225 226 /* This config is flash board for mass production. */ 227 static struct resource nor_flash_resources[] = { 228 [0] = { 229 .start = PA_NORFLASH_ADDR, 230 .end = PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1, 231 .flags = IORESOURCE_MEM, 232 } 233 }; 234 235 static struct platform_device nor_flash_device = { 236 .name = "physmap-flash", 237 .dev = { 238 .platform_data = &nor_flash_data, 239 }, 240 .num_resources = ARRAY_SIZE(nor_flash_resources), 241 .resource = nor_flash_resources, 242 }; 243 244 static struct resource smbus_resources[] = { 245 [0] = { 246 .start = PA_SMCR, 247 .end = PA_SMCR + 0x100 - 1, 248 .flags = IORESOURCE_MEM, 249 }, 250 [1] = { 251 .start = IRQ_SMBUS, 252 .end = IRQ_SMBUS, 253 .flags = IORESOURCE_IRQ, 254 }, 255 }; 256 257 static struct platform_device smbus_device = { 258 .name = "i2c-highlander", 259 .id = 0, 260 .num_resources = ARRAY_SIZE(smbus_resources), 261 .resource = smbus_resources, 262 }; 263 264 static struct i2c_board_info __initdata highlander_i2c_devices[] = { 265 { 266 I2C_BOARD_INFO("r2025sd", 0x32), 267 }, 268 }; 269 270 static struct platform_device *r7780rp_devices[] __initdata = { 271 &r8a66597_usb_host_device, 272 &m66592_usb_peripheral_device, 273 &heartbeat_device, 274 &smbus_device, 275 &nor_flash_device, 276 #ifndef CONFIG_SH_R7780RP 277 &ax88796_device, 278 #endif 279 }; 280 281 /* 282 * The CF is connected using a 16-bit bus where 8-bit operations are 283 * unsupported. The linux ata driver is however using 8-bit operations, so 284 * insert a trapped io filter to convert 8-bit operations into 16-bit. 285 */ 286 static struct trapped_io cf_trapped_io = { 287 .resource = cf_ide_resources, 288 .num_resources = 2, 289 .minimum_bus_width = 16, 290 }; 291 292 static int __init r7780rp_devices_setup(void) 293 { 294 int ret = 0; 295 296 #ifndef CONFIG_SH_R7780RP 297 if (register_trapped_io(&cf_trapped_io) == 0) 298 ret |= platform_device_register(&cf_ide_device); 299 #endif 300 301 ret |= platform_add_devices(r7780rp_devices, 302 ARRAY_SIZE(r7780rp_devices)); 303 304 ret |= i2c_register_board_info(0, highlander_i2c_devices, 305 ARRAY_SIZE(highlander_i2c_devices)); 306 307 return ret; 308 } 309 device_initcall(r7780rp_devices_setup); 310 311 /* 312 * Platform specific clocks 313 */ 314 static int ivdr_clk_enable(struct clk *clk) 315 { 316 __raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL); 317 return 0; 318 } 319 320 static void ivdr_clk_disable(struct clk *clk) 321 { 322 __raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL); 323 } 324 325 static struct sh_clk_ops ivdr_clk_ops = { 326 .enable = ivdr_clk_enable, 327 .disable = ivdr_clk_disable, 328 }; 329 330 static struct clk ivdr_clk = { 331 .ops = &ivdr_clk_ops, 332 }; 333 334 static struct clk *r7780rp_clocks[] = { 335 &ivdr_clk, 336 }; 337 338 static struct clk_lookup lookups[] = { 339 /* main clocks */ 340 CLKDEV_CON_ID("ivdr_clk", &ivdr_clk), 341 }; 342 343 static void r7780rp_power_off(void) 344 { 345 if (mach_is_r7780mp() || mach_is_r7785rp()) 346 __raw_writew(0x0001, PA_POFF); 347 } 348 349 /* 350 * Initialize the board 351 */ 352 static void __init highlander_setup(char **cmdline_p) 353 { 354 u16 ver = __raw_readw(PA_VERREG); 355 int i; 356 357 printk(KERN_INFO "Renesas Solutions Highlander %s support.\n", 358 mach_is_r7780rp() ? "R7780RP-1" : 359 mach_is_r7780mp() ? "R7780MP" : 360 "R7785RP"); 361 362 printk(KERN_INFO "Board version: %d (revision %d), " 363 "FPGA version: %d (revision %d)\n", 364 (ver >> 12) & 0xf, (ver >> 8) & 0xf, 365 (ver >> 4) & 0xf, ver & 0xf); 366 367 highlander_plat_pinmux_setup(); 368 369 /* 370 * Enable the important clocks right away.. 371 */ 372 for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) { 373 struct clk *clk = r7780rp_clocks[i]; 374 375 clk_register(clk); 376 clk_enable(clk); 377 } 378 379 clkdev_add_table(lookups, ARRAY_SIZE(lookups)); 380 381 __raw_writew(0x0000, PA_OBLED); /* Clear LED. */ 382 383 if (mach_is_r7780rp()) 384 __raw_writew(0x0001, PA_SDPOW); /* SD Power ON */ 385 386 __raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL); /* Si13112 */ 387 388 pm_power_off = r7780rp_power_off; 389 } 390 391 static unsigned char irl2irq[HL_NR_IRL]; 392 393 static int highlander_irq_demux(int irq) 394 { 395 if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq]) 396 return irq; 397 398 return irl2irq[irq]; 399 } 400 401 static void __init highlander_init_irq(void) 402 { 403 unsigned char *ucp = highlander_plat_irq_setup(); 404 405 if (ucp) { 406 plat_irq_setup_pins(IRQ_MODE_IRL3210); 407 memcpy(irl2irq, ucp, HL_NR_IRL); 408 } 409 } 410 411 /* 412 * The Machine Vector 413 */ 414 static struct sh_machine_vector mv_highlander __initmv = { 415 .mv_name = "Highlander", 416 .mv_setup = highlander_setup, 417 .mv_init_irq = highlander_init_irq, 418 .mv_irq_demux = highlander_irq_demux, 419 }; 420