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