mach-highlander/setup.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/sh/boards/renesas/r7780rp/setup.c
   4  *
   5  * Renesas Solutions Highlander Support.
   6  *
   7  * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
   8  * Copyright (C) 2005 - 2008 Paul Mundt
   9  *
  10  * This contains support for the R7780RP-1, R7780MP, and R7785RP
  11  * Highlander modules.
  12  */
  13 #include <linux/init.h>
  14 #include <linux/io.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/ata_platform.h>
  17 #include <linux/types.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/i2c.h>
  20 #include <linux/irq.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/usb/r8a66597.h>
  23 #include <linux/usb/m66592.h>
  24 #include <linux/clkdev.h>
  25 #include <net/ax88796.h>
  26 #include <asm/machvec.h>
  27 #include <mach/highlander.h>
  28 #include <asm/clock.h>
  29 #include <asm/heartbeat.h>
  30 #include <asm/io.h>
  31 #include <asm/io_trapped.h>
  32
  33 static struct r8a66597_platdata r8a66597_data = {
  34         .xtal = R8A66597_PLATDATA_XTAL_12MHZ,
  35         .vif = 1,
  36 };
  37
  38 static struct resource r8a66597_usb_host_resources[] = {
  39         [0] = {
  40                 .start  = 0xA4200000,
  41                 .end    = 0xA42000FF,
  42                 .flags  = IORESOURCE_MEM,
  43         },
  44         [1] = {
  45                 .start  = IRQ_EXT1,             /* irq number */
  46                 .end    = IRQ_EXT1,
  47                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
  48         },
  49 };
  50
  51 static struct platform_device r8a66597_usb_host_device = {
  52         .name           = "r8a66597_hcd",
  53         .id             = -1,
  54         .dev = {
  55                 .dma_mask               = NULL,         /* don't use dma */
  56                 .coherent_dma_mask      = 0xffffffff,
  57                 .platform_data          = &r8a66597_data,
  58         },
  59         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
  60         .resource       = r8a66597_usb_host_resources,
  61 };
  62
  63 static struct m66592_platdata usbf_platdata = {
  64         .xtal = M66592_PLATDATA_XTAL_24MHZ,
  65         .vif = 1,
  66 };
  67
  68 static struct resource m66592_usb_peripheral_resources[] = {
  69         [0] = {
  70                 .name   = "m66592_udc",
  71                 .start  = 0xb0000000,
  72                 .end    = 0xb00000FF,
  73                 .flags  = IORESOURCE_MEM,
  74         },
  75         [1] = {
  76                 .name   = "m66592_udc",
  77                 .start  = IRQ_EXT4,             /* irq number */
  78                 .end    = IRQ_EXT4,
  79                 .flags  = IORESOURCE_IRQ,
  80         },
  81 };
  82
  83 static struct platform_device m66592_usb_peripheral_device = {
  84         .name           = "m66592_udc",
  85         .id             = -1,
  86         .dev = {
  87                 .dma_mask               = NULL,         /* don't use dma */
  88                 .coherent_dma_mask      = 0xffffffff,
  89                 .platform_data          = &usbf_platdata,
  90         },
  91         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
  92         .resource       = m66592_usb_peripheral_resources,
  93 };
  94
  95 static struct resource cf_ide_resources[] = {
  96         [0] = {
  97                 .start  = PA_AREA5_IO + 0x1000,
  98                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
  99                 .flags  = IORESOURCE_MEM,
 100         },
 101         [1] = {
 102                 .start  = PA_AREA5_IO + 0x80c,
 103                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
 104                 .flags  = IORESOURCE_MEM,
 105         },
 106         [2] = {
 107                 .start  = IRQ_CF,
 108                 .flags  = IORESOURCE_IRQ,
 109         },
 110 };
 111
 112 static struct pata_platform_info pata_info = {
 113         .ioport_shift   = 1,
 114 };
 115
 116 static struct platform_device cf_ide_device  = {
 117         .name           = "pata_platform",
 118         .id             = -1,
 119         .num_resources  = ARRAY_SIZE(cf_ide_resources),
 120         .resource       = cf_ide_resources,
 121         .dev    = {
 122                 .platform_data  = &pata_info,
 123         },
 124 };
 125
 126 static struct resource heartbeat_resources[] = {
 127         [0] = {
 128                 .start  = PA_OBLED,
 129                 .end    = PA_OBLED,
 130                 .flags  = IORESOURCE_MEM,
 131         },
 132 };
 133
 134 #ifndef CONFIG_SH_R7785RP
 135 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
 136
 137 static struct heartbeat_data heartbeat_data = {
 138         .bit_pos        = heartbeat_bit_pos,
 139         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
 140 };
 141 #endif
 142
 143 static struct platform_device heartbeat_device = {
 144         .name           = "heartbeat",
 145         .id             = -1,
 146
 147         /* R7785RP has a slightly more sensible FPGA.. */
 148 #ifndef CONFIG_SH_R7785RP
 149         .dev    = {
 150                 .platform_data  = &heartbeat_data,
 151         },
 152 #endif
 153         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 154         .resource       = heartbeat_resources,
 155 };
 156
 157 static struct ax_plat_data ax88796_platdata = {
 158         .flags          = AXFLG_HAS_93CX6,
 159         .wordlength     = 2,
 160         .dcr_val        = 0x1,
 161         .rcr_val        = 0x40,
 162 };
 163
 164 static struct resource ax88796_resources[] = {
 165         {
 166 #ifdef CONFIG_SH_R7780RP
 167                 .start  = 0xa5800400,
 168                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
 169 #else
 170                 .start  = 0xa4100400,
 171                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
 172 #endif
 173                 .flags  = IORESOURCE_MEM,
 174         },
 175         {
 176                 .start  = IRQ_AX88796,
 177                 .end    = IRQ_AX88796,
 178                 .flags  = IORESOURCE_IRQ,
 179         },
 180 };
 181
 182 static struct platform_device ax88796_device = {
 183         .name           = "ax88796",
 184         .id             = 0,
 185
 186         .dev    = {
 187                 .platform_data = &ax88796_platdata,
 188         },
 189
 190         .num_resources  = ARRAY_SIZE(ax88796_resources),
 191         .resource       = ax88796_resources,
 192 };
 193
 194 static struct mtd_partition nor_flash_partitions[] = {
 195         {
 196                 .name           = "loader",
 197                 .offset         = 0x00000000,
 198                 .size           = 512 * 1024,
 199         },
 200         {
 201                 .name           = "bootenv",
 202                 .offset         = MTDPART_OFS_APPEND,
 203                 .size           = 512 * 1024,
 204         },
 205         {
 206                 .name           = "kernel",
 207                 .offset         = MTDPART_OFS_APPEND,
 208                 .size           = 4 * 1024 * 1024,
 209         },
 210         {
 211                 .name           = "data",
 212                 .offset         = MTDPART_OFS_APPEND,
 213                 .size           = MTDPART_SIZ_FULL,
 214         },
 215 };
 216
 217 static struct physmap_flash_data nor_flash_data = {
 218         .width          = 4,
 219         .parts          = nor_flash_partitions,
 220         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 221 };
 222
 223 /* This config is flash board for mass production. */
 224 static struct resource nor_flash_resources[] = {
 225         [0]     = {
 226                 .start  = PA_NORFLASH_ADDR,
 227                 .end    = PA_NORFLASH_ADDR + PA_NORFLASH_SIZE - 1,
 228                 .flags  = IORESOURCE_MEM,
 229         }
 230 };
 231
 232 static struct platform_device nor_flash_device = {
 233         .name           = "physmap-flash",
 234         .dev            = {
 235                 .platform_data  = &nor_flash_data,
 236         },
 237         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 238         .resource       = nor_flash_resources,
 239 };
 240
 241 static struct resource smbus_resources[] = {
 242         [0] = {
 243                 .start  = PA_SMCR,
 244                 .end    = PA_SMCR + 0x100 - 1,
 245                 .flags  = IORESOURCE_MEM,
 246         },
 247         [1] = {
 248                 .start  = IRQ_SMBUS,
 249                 .end    = IRQ_SMBUS,
 250                 .flags  = IORESOURCE_IRQ,
 251         },
 252 };
 253
 254 static struct platform_device smbus_device = {
 255         .name           = "i2c-highlander",
 256         .id             = 0,
 257         .num_resources  = ARRAY_SIZE(smbus_resources),
 258         .resource       = smbus_resources,
 259 };
 260
 261 static struct i2c_board_info __initdata highlander_i2c_devices[] = {
 262         {
 263                 I2C_BOARD_INFO("r2025sd", 0x32),
 264         },
 265 };
 266
 267 static struct platform_device *r7780rp_devices[] __initdata = {
 268         &r8a66597_usb_host_device,
 269         &m66592_usb_peripheral_device,
 270         &heartbeat_device,
 271         &smbus_device,
 272         &nor_flash_device,
 273 #ifndef CONFIG_SH_R7780RP
 274         &ax88796_device,
 275 #endif
 276 };
 277
 278 /*
 279  * The CF is connected using a 16-bit bus where 8-bit operations are
 280  * unsupported. The linux ata driver is however using 8-bit operations, so
 281  * insert a trapped io filter to convert 8-bit operations into 16-bit.
 282  */
 283 static struct trapped_io cf_trapped_io = {
 284         .resource               = cf_ide_resources,
 285         .num_resources          = 2,
 286         .minimum_bus_width      = 16,
 287 };
 288
 289 static int __init r7780rp_devices_setup(void)
 290 {
 291         int ret = 0;
 292
 293 #ifndef CONFIG_SH_R7780RP
 294         if (register_trapped_io(&cf_trapped_io) == 0)
 295                 ret |= platform_device_register(&cf_ide_device);
 296 #endif
 297
 298         ret |= platform_add_devices(r7780rp_devices,
 299                                     ARRAY_SIZE(r7780rp_devices));
 300
 301         ret |= i2c_register_board_info(0, highlander_i2c_devices,
 302                                        ARRAY_SIZE(highlander_i2c_devices));
 303
 304         return ret;
 305 }
 306 device_initcall(r7780rp_devices_setup);
 307
 308 /*
 309  * Platform specific clocks
 310  */
 311 static int ivdr_clk_enable(struct clk *clk)
 312 {
 313         __raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
 314         return 0;
 315 }
 316
 317 static void ivdr_clk_disable(struct clk *clk)
 318 {
 319         __raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
 320 }
 321
 322 static struct sh_clk_ops ivdr_clk_ops = {
 323         .enable         = ivdr_clk_enable,
 324         .disable        = ivdr_clk_disable,
 325 };
 326
 327 static struct clk ivdr_clk = {
 328         .ops            = &ivdr_clk_ops,
 329 };
 330
 331 static struct clk *r7780rp_clocks[] = {
 332         &ivdr_clk,
 333 };
 334
 335 static struct clk_lookup lookups[] = {
 336         /* main clocks */
 337         CLKDEV_CON_ID("ivdr_clk", &ivdr_clk),
 338 };
 339
 340 static void r7780rp_power_off(void)
 341 {
 342         if (mach_is_r7780mp() || mach_is_r7785rp())
 343                 __raw_writew(0x0001, PA_POFF);
 344 }
 345
 346 /*
 347  * Initialize the board
 348  */
 349 static void __init highlander_setup(char **cmdline_p)
 350 {
 351         u16 ver = __raw_readw(PA_VERREG);
 352         int i;
 353
 354         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
 355                          mach_is_r7780rp() ? "R7780RP-1" :
 356                          mach_is_r7780mp() ? "R7780MP"   :
 357                                              "R7785RP");
 358
 359         printk(KERN_INFO "Board version: %d (revision %d), "
 360                          "FPGA version: %d (revision %d)\n",
 361                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
 362                          (ver >>  4) & 0xf, ver & 0xf);
 363
 364         highlander_plat_pinmux_setup();
 365
 366         /*
 367          * Enable the important clocks right away..
 368          */
 369         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
 370                 struct clk *clk = r7780rp_clocks[i];
 371
 372                 clk_register(clk);
 373                 clk_enable(clk);
 374         }
 375
 376         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 377
 378         __raw_writew(0x0000, PA_OBLED); /* Clear LED. */
 379
 380         if (mach_is_r7780rp())
 381                 __raw_writew(0x0001, PA_SDPOW); /* SD Power ON */
 382
 383         __raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);       /* Si13112 */
 384
 385         pm_power_off = r7780rp_power_off;
 386 }
 387
 388 static unsigned char irl2irq[HL_NR_IRL];
 389
 390 static int highlander_irq_demux(int irq)
 391 {
 392         if (irq >= HL_NR_IRL + 16 || irq < 16 || !irl2irq[irq - 16])
 393                 return irq;
 394
 395         return irl2irq[irq - 16];
 396 }
 397
 398 static void __init highlander_init_irq(void)
 399 {
 400         unsigned char *ucp = highlander_plat_irq_setup();
 401
 402         if (ucp) {
 403                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
 404                 memcpy(irl2irq, ucp, HL_NR_IRL);
 405         }
 406 }
 407
 408 /*
 409  * The Machine Vector
 410  */
 411 static struct sh_machine_vector mv_highlander __initmv = {
 412         .mv_name                = "Highlander",
 413         .mv_setup               = highlander_setup,
 414         .mv_init_irq            = highlander_init_irq,
 415         .mv_irq_demux           = highlander_irq_demux,
 416 };