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