arch/sh/kernel/cpu/sh4/setup-sh7750.c

   1 /*
   2  * SH7091/SH7750/SH7750S/SH7750R/SH7751/SH7751R Setup
   3  *
   4  *  Copyright (C) 2006  Paul Mundt
   5  *  Copyright (C) 2006  Jamie Lenehan
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  */
  11 #include <linux/platform_device.h>
  12 #include <linux/init.h>
  13 #include <linux/serial.h>
  14 #include <linux/io.h>
  15 #include <linux/sh_timer.h>
  16 #include <linux/sh_intc.h>
  17 #include <linux/serial_sci.h>
  18 #include <generated/machtypes.h>
  19
  20 static struct resource rtc_resources[] = {
  21         [0] = {
  22                 .start  = 0xffc80000,
  23                 .end    = 0xffc80000 + 0x58 - 1,
  24                 .flags  = IORESOURCE_IO,
  25         },
  26         [1] = {
  27                 /* Shared Period/Carry/Alarm IRQ */
  28                 .start  = evt2irq(0x480),
  29                 .flags  = IORESOURCE_IRQ,
  30         },
  31 };
  32
  33 static struct platform_device rtc_device = {
  34         .name           = "sh-rtc",
  35         .id             = -1,
  36         .num_resources  = ARRAY_SIZE(rtc_resources),
  37         .resource       = rtc_resources,
  38 };
  39
  40 static struct plat_sci_port sci_platform_data = {
  41         .port_reg       = 0xffe0001C,
  42         .flags          = UPF_BOOT_AUTOCONF,
  43         .scscr          = SCSCR_TE | SCSCR_RE,
  44         .type           = PORT_SCI,
  45         .regshift       = 2,
  46 };
  47
  48 static struct resource sci_resources[] = {
  49         DEFINE_RES_MEM(0xffe00000, 0x100),
  50         DEFINE_RES_IRQ(evt2irq(0x4e0)),
  51 };
  52
  53 static struct platform_device sci_device = {
  54         .name           = "sh-sci",
  55         .id             = 0,
  56         .resource       = sci_resources,
  57         .num_resources  = ARRAY_SIZE(sci_resources),
  58         .dev            = {
  59                 .platform_data  = &sci_platform_data,
  60         },
  61 };
  62
  63 static struct plat_sci_port scif_platform_data = {
  64         .flags          = UPF_BOOT_AUTOCONF,
  65         .scscr          = SCSCR_TE | SCSCR_RE | SCSCR_REIE,
  66         .type           = PORT_SCIF,
  67 };
  68
  69 static struct resource scif_resources[] = {
  70         DEFINE_RES_MEM(0xffe80000, 0x100),
  71         DEFINE_RES_IRQ(evt2irq(0x700)),
  72 };
  73
  74 static struct platform_device scif_device = {
  75         .name           = "sh-sci",
  76         .id             = 1,
  77         .resource       = scif_resources,
  78         .num_resources  = ARRAY_SIZE(scif_resources),
  79         .dev            = {
  80                 .platform_data  = &scif_platform_data,
  81         },
  82 };
  83
  84 static struct sh_timer_config tmu0_platform_data = {
  85         .channels_mask = 7,
  86 };
  87
  88 static struct resource tmu0_resources[] = {
  89         DEFINE_RES_MEM(0xffd80000, 0x30),
  90         DEFINE_RES_IRQ(evt2irq(0x400)),
  91         DEFINE_RES_IRQ(evt2irq(0x420)),
  92         DEFINE_RES_IRQ(evt2irq(0x440)),
  93 };
  94
  95 static struct platform_device tmu0_device = {
  96         .name           = "sh-tmu",
  97         .id             = 0,
  98         .dev = {
  99                 .platform_data  = &tmu0_platform_data,
 100         },
 101         .resource       = tmu0_resources,
 102         .num_resources  = ARRAY_SIZE(tmu0_resources),
 103 };
 104
 105 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
 106 #if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
 107         defined(CONFIG_CPU_SUBTYPE_SH7751) || \
 108         defined(CONFIG_CPU_SUBTYPE_SH7751R)
 109
 110 static struct sh_timer_config tmu1_platform_data = {
 111         .channels_mask = 3,
 112 };
 113
 114 static struct resource tmu1_resources[] = {
 115         DEFINE_RES_MEM(0xfe100000, 0x20),
 116         DEFINE_RES_IRQ(evt2irq(0xb00)),
 117         DEFINE_RES_IRQ(evt2irq(0xb80)),
 118 };
 119
 120 static struct platform_device tmu1_device = {
 121         .name           = "sh-tmu",
 122         .id             = 1,
 123         .dev = {
 124                 .platform_data  = &tmu1_platform_data,
 125         },
 126         .resource       = tmu1_resources,
 127         .num_resources  = ARRAY_SIZE(tmu1_resources),
 128 };
 129
 130 #endif
 131
 132 static struct platform_device *sh7750_devices[] __initdata = {
 133         &rtc_device,
 134         &tmu0_device,
 135 #if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
 136         defined(CONFIG_CPU_SUBTYPE_SH7751) || \
 137         defined(CONFIG_CPU_SUBTYPE_SH7751R)
 138         &tmu1_device,
 139 #endif
 140 };
 141
 142 static int __init sh7750_devices_setup(void)
 143 {
 144         if (mach_is_rts7751r2d()) {
 145                 platform_device_register(&scif_device);
 146         } else {
 147                 platform_device_register(&sci_device);
 148                 platform_device_register(&scif_device);
 149         }
 150
 151         return platform_add_devices(sh7750_devices,
 152                                     ARRAY_SIZE(sh7750_devices));
 153 }
 154 arch_initcall(sh7750_devices_setup);
 155
 156 static struct platform_device *sh7750_early_devices[] __initdata = {
 157         &tmu0_device,
 158 #if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
 159         defined(CONFIG_CPU_SUBTYPE_SH7751) || \
 160         defined(CONFIG_CPU_SUBTYPE_SH7751R)
 161         &tmu1_device,
 162 #endif
 163 };
 164
 165 void __init plat_early_device_setup(void)
 166 {
 167         struct platform_device *dev[1];
 168
 169         if (mach_is_rts7751r2d()) {
 170                 scif_platform_data.scscr |= SCSCR_CKE1;
 171                 dev[0] = &scif_device;
 172                 early_platform_add_devices(dev, 1);
 173         } else {
 174                 dev[0] = &sci_device;
 175                 early_platform_add_devices(dev, 1);
 176                 dev[0] = &scif_device;
 177                 early_platform_add_devices(dev, 1);
 178         }
 179
 180         early_platform_add_devices(sh7750_early_devices,
 181                                    ARRAY_SIZE(sh7750_early_devices));
 182 }
 183
 184 enum {
 185         UNUSED = 0,
 186
 187         /* interrupt sources */
 188         IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
 189         HUDI, GPIOI, DMAC,
 190         PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 191         PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
 192         TMU3, TMU4, TMU0, TMU1, TMU2, RTC, SCI1, SCIF, WDT, REF,
 193
 194         /* interrupt groups */
 195         PCIC1,
 196 };
 197
 198 static struct intc_vect vectors[] __initdata = {
 199         INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
 200         INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
 201         INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
 202         INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
 203         INTC_VECT(RTC, 0x4c0),
 204         INTC_VECT(SCI1, 0x4e0), INTC_VECT(SCI1, 0x500),
 205         INTC_VECT(SCI1, 0x520), INTC_VECT(SCI1, 0x540),
 206         INTC_VECT(SCIF, 0x700), INTC_VECT(SCIF, 0x720),
 207         INTC_VECT(SCIF, 0x740), INTC_VECT(SCIF, 0x760),
 208         INTC_VECT(WDT, 0x560),
 209         INTC_VECT(REF, 0x580), INTC_VECT(REF, 0x5a0),
 210 };
 211
 212 static struct intc_prio_reg prio_registers[] __initdata = {
 213         { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 214         { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
 215         { 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
 216         { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
 217         { 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
 218                                                  TMU4, TMU3,
 219                                                  PCIC1, PCIC0_PCISERR } },
 220 };
 221
 222 static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL,
 223                          NULL, prio_registers, NULL);
 224
 225 /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
 226 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
 227         defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
 228         defined(CONFIG_CPU_SUBTYPE_SH7751) || \
 229         defined(CONFIG_CPU_SUBTYPE_SH7091)
 230 static struct intc_vect vectors_dma4[] __initdata = {
 231         INTC_VECT(DMAC, 0x640), INTC_VECT(DMAC, 0x660),
 232         INTC_VECT(DMAC, 0x680), INTC_VECT(DMAC, 0x6a0),
 233         INTC_VECT(DMAC, 0x6c0),
 234 };
 235
 236 static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4",
 237                          vectors_dma4, NULL,
 238                          NULL, prio_registers, NULL);
 239 #endif
 240
 241 /* SH7750R and SH7751R both have 8-channel DMA controllers */
 242 #if defined(CONFIG_CPU_SUBTYPE_SH7750R) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
 243 static struct intc_vect vectors_dma8[] __initdata = {
 244         INTC_VECT(DMAC, 0x640), INTC_VECT(DMAC, 0x660),
 245         INTC_VECT(DMAC, 0x680), INTC_VECT(DMAC, 0x6a0),
 246         INTC_VECT(DMAC, 0x780), INTC_VECT(DMAC, 0x7a0),
 247         INTC_VECT(DMAC, 0x7c0), INTC_VECT(DMAC, 0x7e0),
 248         INTC_VECT(DMAC, 0x6c0),
 249 };
 250
 251 static DECLARE_INTC_DESC(intc_desc_dma8, "sh7750_dma8",
 252                          vectors_dma8, NULL,
 253                          NULL, prio_registers, NULL);
 254 #endif
 255
 256 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
 257 #if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
 258         defined(CONFIG_CPU_SUBTYPE_SH7751) || \
 259         defined(CONFIG_CPU_SUBTYPE_SH7751R)
 260 static struct intc_vect vectors_tmu34[] __initdata = {
 261         INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
 262 };
 263
 264 static struct intc_mask_reg mask_registers[] __initdata = {
 265         { 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
 266           { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 267             0, 0, 0, 0, 0, 0, TMU4, TMU3,
 268             PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 269             PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
 270             PCIC1_PCIDMA3, PCIC0_PCISERR } },
 271 };
 272
 273 static DECLARE_INTC_DESC(intc_desc_tmu34, "sh7750_tmu34",
 274                          vectors_tmu34, NULL,
 275                          mask_registers, prio_registers, NULL);
 276 #endif
 277
 278 /* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
 279 static struct intc_vect vectors_irlm[] __initdata = {
 280         INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
 281         INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
 282 };
 283
 284 static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL,
 285                          NULL, prio_registers, NULL);
 286
 287 /* SH7751 and SH7751R both have PCI */
 288 #if defined(CONFIG_CPU_SUBTYPE_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
 289 static struct intc_vect vectors_pci[] __initdata = {
 290         INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
 291         INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
 292         INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
 293         INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
 294 };
 295
 296 static struct intc_group groups_pci[] __initdata = {
 297         INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 298                    PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
 299 };
 300
 301 static DECLARE_INTC_DESC(intc_desc_pci, "sh7750_pci", vectors_pci, groups_pci,
 302                          mask_registers, prio_registers, NULL);
 303 #endif
 304
 305 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
 306         defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
 307         defined(CONFIG_CPU_SUBTYPE_SH7091)
 308 void __init plat_irq_setup(void)
 309 {
 310         /*
 311          * same vectors for SH7750, SH7750S and SH7091 except for IRLM,
 312          * see below..
 313          */
 314         register_intc_controller(&intc_desc);
 315         register_intc_controller(&intc_desc_dma4);
 316 }
 317 #endif
 318
 319 #if defined(CONFIG_CPU_SUBTYPE_SH7750R)
 320 void __init plat_irq_setup(void)
 321 {
 322         register_intc_controller(&intc_desc);
 323         register_intc_controller(&intc_desc_dma8);
 324         register_intc_controller(&intc_desc_tmu34);
 325 }
 326 #endif
 327
 328 #if defined(CONFIG_CPU_SUBTYPE_SH7751)
 329 void __init plat_irq_setup(void)
 330 {
 331         register_intc_controller(&intc_desc);
 332         register_intc_controller(&intc_desc_dma4);
 333         register_intc_controller(&intc_desc_tmu34);
 334         register_intc_controller(&intc_desc_pci);
 335 }
 336 #endif
 337
 338 #if defined(CONFIG_CPU_SUBTYPE_SH7751R)
 339 void __init plat_irq_setup(void)
 340 {
 341         register_intc_controller(&intc_desc);
 342         register_intc_controller(&intc_desc_dma8);
 343         register_intc_controller(&intc_desc_tmu34);
 344         register_intc_controller(&intc_desc_pci);
 345 }
 346 #endif
 347
 348 #define INTC_ICR        0xffd00000UL
 349 #define INTC_ICR_IRLM   (1<<7)
 350
 351 void __init plat_irq_setup_pins(int mode)
 352 {
 353 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7091)
 354         BUG(); /* impossible to mask interrupts on SH7750 and SH7091 */
 355         return;
 356 #endif
 357
 358         switch (mode) {
 359         case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
 360                 __raw_writew(__raw_readw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
 361                 register_intc_controller(&intc_desc_irlm);
 362                 break;
 363         default:
 364                 BUG();
 365         }
 366 }