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