arch/sh/boards/renesas/r7780rp/setup.c

   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 - 2007 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/pata_platform.h>
  19 #include <linux/types.h>
  20 #include <net/ax88796.h>
  21 #include <asm/machvec.h>
  22 #include <asm/r7780rp.h>
  23 #include <asm/clock.h>
  24 #include <asm/heartbeat.h>
  25 #include <asm/io.h>
  26
  27 static struct resource r8a66597_usb_host_resources[] = {
  28         [0] = {
  29                 .name   = "r8a66597_hcd",
  30                 .start  = 0xA4200000,
  31                 .end    = 0xA42000FF,
  32                 .flags  = IORESOURCE_MEM,
  33         },
  34         [1] = {
  35                 .name   = "r8a66597_hcd",
  36                 .start  = IRQ_EXT1,             /* irq number */
  37                 .end    = IRQ_EXT1,
  38                 .flags  = IORESOURCE_IRQ,
  39         },
  40 };
  41
  42 static struct platform_device r8a66597_usb_host_device = {
  43         .name           = "r8a66597_hcd",
  44         .id             = -1,
  45         .dev = {
  46                 .dma_mask               = NULL,         /* don't use dma */
  47                 .coherent_dma_mask      = 0xffffffff,
  48         },
  49         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
  50         .resource       = r8a66597_usb_host_resources,
  51 };
  52
  53 static struct resource m66592_usb_peripheral_resources[] = {
  54         [0] = {
  55                 .name   = "m66592_udc",
  56                 .start  = 0xb0000000,
  57                 .end    = 0xb00000FF,
  58                 .flags  = IORESOURCE_MEM,
  59         },
  60         [1] = {
  61                 .name   = "m66592_udc",
  62                 .start  = IRQ_EXT4,             /* irq number */
  63                 .end    = IRQ_EXT4,
  64                 .flags  = IORESOURCE_IRQ,
  65         },
  66 };
  67
  68 static struct platform_device m66592_usb_peripheral_device = {
  69         .name           = "m66592_udc",
  70         .id             = -1,
  71         .dev = {
  72                 .dma_mask               = NULL,         /* don't use dma */
  73                 .coherent_dma_mask      = 0xffffffff,
  74         },
  75         .num_resources  = ARRAY_SIZE(m66592_usb_peripheral_resources),
  76         .resource       = m66592_usb_peripheral_resources,
  77 };
  78
  79 static struct resource cf_ide_resources[] = {
  80         [0] = {
  81                 .start  = PA_AREA5_IO + 0x1000,
  82                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
  83                 .flags  = IORESOURCE_MEM,
  84         },
  85         [1] = {
  86                 .start  = PA_AREA5_IO + 0x80c,
  87                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
  88                 .flags  = IORESOURCE_MEM,
  89         },
  90         [2] = {
  91                 .start  = IRQ_CF,
  92                 .flags  = IORESOURCE_IRQ,
  93         },
  94 };
  95
  96 static struct pata_platform_info pata_info = {
  97         .ioport_shift   = 1,
  98 };
  99
 100 static struct platform_device cf_ide_device  = {
 101         .name           = "pata_platform",
 102         .id             = -1,
 103         .num_resources  = ARRAY_SIZE(cf_ide_resources),
 104         .resource       = cf_ide_resources,
 105         .dev    = {
 106                 .platform_data  = &pata_info,
 107         },
 108 };
 109
 110 static struct resource heartbeat_resources[] = {
 111         [0] = {
 112                 .start  = PA_OBLED,
 113                 .end    = PA_OBLED,
 114                 .flags  = IORESOURCE_MEM,
 115         },
 116 };
 117
 118 #ifndef CONFIG_SH_R7785RP
 119 static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
 120
 121 static struct heartbeat_data heartbeat_data = {
 122         .bit_pos        = heartbeat_bit_pos,
 123         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
 124 };
 125 #endif
 126
 127 static struct platform_device heartbeat_device = {
 128         .name           = "heartbeat",
 129         .id             = -1,
 130
 131         /* R7785RP has a slightly more sensible FPGA.. */
 132 #ifndef CONFIG_SH_R7785RP
 133         .dev    = {
 134                 .platform_data  = &heartbeat_data,
 135         },
 136 #endif
 137         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 138         .resource       = heartbeat_resources,
 139 };
 140
 141 static struct ax_plat_data ax88796_platdata = {
 142         .flags          = AXFLG_HAS_93CX6,
 143         .wordlength     = 2,
 144         .dcr_val        = 0x1,
 145         .rcr_val        = 0x40,
 146 };
 147
 148 static struct resource ax88796_resources[] = {
 149         {
 150 #ifdef CONFIG_SH_R7780RP
 151                 .start  = 0xa5800400,
 152                 .end    = 0xa5800400 + (0x20 * 0x2) - 1,
 153 #else
 154                 .start  = 0xa4100400,
 155                 .end    = 0xa4100400 + (0x20 * 0x2) - 1,
 156 #endif
 157                 .flags  = IORESOURCE_MEM,
 158         },
 159         {
 160                 .start  = IRQ_AX88796,
 161                 .end    = IRQ_AX88796,
 162                 .flags  = IORESOURCE_IRQ,
 163         },
 164 };
 165
 166 static struct platform_device ax88796_device = {
 167         .name           = "ax88796",
 168         .id             = 0,
 169
 170         .dev    = {
 171                 .platform_data = &ax88796_platdata,
 172         },
 173
 174         .num_resources  = ARRAY_SIZE(ax88796_resources),
 175         .resource       = ax88796_resources,
 176 };
 177
 178
 179 static struct platform_device *r7780rp_devices[] __initdata = {
 180         &r8a66597_usb_host_device,
 181         &m66592_usb_peripheral_device,
 182         &cf_ide_device,
 183         &heartbeat_device,
 184         &ax88796_device,
 185 };
 186
 187 static int __init r7780rp_devices_setup(void)
 188 {
 189         return platform_add_devices(r7780rp_devices,
 190                                     ARRAY_SIZE(r7780rp_devices));
 191 }
 192 device_initcall(r7780rp_devices_setup);
 193
 194 /*
 195  * Platform specific clocks
 196  */
 197 static void ivdr_clk_enable(struct clk *clk)
 198 {
 199         ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
 200 }
 201
 202 static void ivdr_clk_disable(struct clk *clk)
 203 {
 204         ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
 205 }
 206
 207 static struct clk_ops ivdr_clk_ops = {
 208         .enable         = ivdr_clk_enable,
 209         .disable        = ivdr_clk_disable,
 210 };
 211
 212 static struct clk ivdr_clk = {
 213         .name           = "ivdr_clk",
 214         .ops            = &ivdr_clk_ops,
 215 };
 216
 217 static struct clk *r7780rp_clocks[] = {
 218         &ivdr_clk,
 219 };
 220
 221 static void r7780rp_power_off(void)
 222 {
 223         if (mach_is_r7780mp() || mach_is_r7785rp())
 224                 ctrl_outw(0x0001, PA_POFF);
 225 }
 226
 227 static inline unsigned char is_ide_ioaddr(unsigned long addr)
 228 {
 229         return ((cf_ide_resources[0].start <= addr &&
 230                  addr <= cf_ide_resources[0].end) ||
 231                 (cf_ide_resources[1].start <= addr &&
 232                  addr <= cf_ide_resources[1].end));
 233 }
 234
 235 void highlander_writeb(u8 b, void __iomem *addr)
 236 {
 237         unsigned long tmp = (unsigned long __force)addr;
 238
 239         if (is_ide_ioaddr(tmp))
 240                 ctrl_outw((u16)b, tmp);
 241         else
 242                 ctrl_outb(b, tmp);
 243 }
 244
 245 u8 highlander_readb(void __iomem *addr)
 246 {
 247         unsigned long tmp = (unsigned long __force)addr;
 248
 249         if (is_ide_ioaddr(tmp))
 250                 return ctrl_inw(tmp) & 0xff;
 251         else
 252                 return ctrl_inb(tmp);
 253 }
 254
 255 /*
 256  * Initialize the board
 257  */
 258 static void __init highlander_setup(char **cmdline_p)
 259 {
 260         u16 ver = ctrl_inw(PA_VERREG);
 261         int i;
 262
 263         printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
 264                          mach_is_r7780rp() ? "R7780RP-1" :
 265                          mach_is_r7780mp() ? "R7780MP"   :
 266                                              "R7785RP");
 267
 268         printk(KERN_INFO "Board version: %d (revision %d), "
 269                          "FPGA version: %d (revision %d)\n",
 270                          (ver >> 12) & 0xf, (ver >> 8) & 0xf,
 271                          (ver >>  4) & 0xf, ver & 0xf);
 272
 273         /*
 274          * Enable the important clocks right away..
 275          */
 276         for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
 277                 struct clk *clk = r7780rp_clocks[i];
 278
 279                 clk_register(clk);
 280                 clk_enable(clk);
 281         }
 282
 283         ctrl_outw(0x0000, PA_OBLED);    /* Clear LED. */
 284
 285         if (mach_is_r7780rp())
 286                 ctrl_outw(0x0001, PA_SDPOW);    /* SD Power ON */
 287
 288         ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);     /* Si13112 */
 289
 290         pm_power_off = r7780rp_power_off;
 291 }
 292
 293 static unsigned char irl2irq[HL_NR_IRL];
 294
 295 int highlander_irq_demux(int irq)
 296 {
 297         if (irq >= HL_NR_IRL || !irl2irq[irq])
 298                 return irq;
 299
 300         return irl2irq[irq];
 301 }
 302
 303 void __init highlander_init_irq(void)
 304 {
 305         unsigned char *ucp = NULL;
 306
 307         do {
 308 #ifdef CONFIG_SH_R7780MP
 309                 ucp = highlander_init_irq_r7780mp();
 310                 if (ucp)
 311                         break;
 312 #endif
 313 #ifdef CONFIG_SH_R7785RP
 314                 ucp = highlander_init_irq_r7785rp();
 315                 if (ucp)
 316                         break;
 317 #endif
 318 #ifdef CONFIG_SH_R7780RP
 319                 highlander_init_irq_r7780rp();
 320                 ucp = irl2irq;
 321                 break;
 322 #endif
 323         } while (0);
 324
 325         if (ucp) {
 326                 plat_irq_setup_pins(IRQ_MODE_IRL3210);
 327                 memcpy(irl2irq, ucp, HL_NR_IRL);
 328         }
 329 }
 330
 331 /*
 332  * The Machine Vector
 333  */
 334 static struct sh_machine_vector mv_highlander __initmv = {
 335         .mv_name                = "Highlander",
 336         .mv_setup               = highlander_setup,
 337         .mv_init_irq            = highlander_init_irq,
 338         .mv_irq_demux           = highlander_irq_demux,
 339         .mv_readb               = highlander_readb,
 340         .mv_writeb              = highlander_writeb,
 341 };