arch/sh/boards/board-sh7785lcr.c

   1 /*
   2  * Renesas Technology Corp. R0P7785LC0011RL Support.
   3  *
   4  * Copyright (C) 2008  Yoshihiro Shimoda
   5  * Copyright (C) 2009  Paul Mundt
   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/init.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/sm501.h>
  14 #include <linux/sm501-regs.h>
  15 #include <linux/fb.h>
  16 #include <linux/mtd/physmap.h>
  17 #include <linux/delay.h>
  18 #include <linux/i2c.h>
  19 #include <linux/i2c-pca-platform.h>
  20 #include <linux/i2c-algo-pca.h>
  21 #include <linux/irq.h>
  22 #include <linux/clk.h>
  23 #include <linux/errno.h>
  24 #include <mach/sh7785lcr.h>
  25 #include <asm/heartbeat.h>
  26 #include <asm/clock.h>
  27
  28 /*
  29  * NOTE: This board has 2 physical memory maps.
  30  *       Please look at include/asm-sh/sh7785lcr.h or hardware manual.
  31  */
  32 static struct resource heartbeat_resources[] = {
  33         [0] = {
  34                 .start  = PLD_LEDCR,
  35                 .end    = PLD_LEDCR,
  36                 .flags  = IORESOURCE_MEM,
  37         },
  38 };
  39
  40 static struct heartbeat_data heartbeat_data = {
  41         .regsize = 8,
  42 };
  43
  44 static struct platform_device heartbeat_device = {
  45         .name           = "heartbeat",
  46         .id             = -1,
  47         .dev    = {
  48                 .platform_data  = &heartbeat_data,
  49         },
  50         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  51         .resource       = heartbeat_resources,
  52 };
  53
  54 static struct mtd_partition nor_flash_partitions[] = {
  55         {
  56                 .name           = "loader",
  57                 .offset         = 0x00000000,
  58                 .size           = 512 * 1024,
  59         },
  60         {
  61                 .name           = "bootenv",
  62                 .offset         = MTDPART_OFS_APPEND,
  63                 .size           = 512 * 1024,
  64         },
  65         {
  66                 .name           = "kernel",
  67                 .offset         = MTDPART_OFS_APPEND,
  68                 .size           = 4 * 1024 * 1024,
  69         },
  70         {
  71                 .name           = "data",
  72                 .offset         = MTDPART_OFS_APPEND,
  73                 .size           = MTDPART_SIZ_FULL,
  74         },
  75 };
  76
  77 static struct physmap_flash_data nor_flash_data = {
  78         .width          = 4,
  79         .parts          = nor_flash_partitions,
  80         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  81 };
  82
  83 static struct resource nor_flash_resources[] = {
  84         [0]     = {
  85                 .start  = NOR_FLASH_ADDR,
  86                 .end    = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 1,
  87                 .flags  = IORESOURCE_MEM,
  88         }
  89 };
  90
  91 static struct platform_device nor_flash_device = {
  92         .name           = "physmap-flash",
  93         .dev            = {
  94                 .platform_data  = &nor_flash_data,
  95         },
  96         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  97         .resource       = nor_flash_resources,
  98 };
  99
 100 static struct resource r8a66597_usb_host_resources[] = {
 101         [0] = {
 102                 .name   = "r8a66597_hcd",
 103                 .start  = R8A66597_ADDR,
 104                 .end    = R8A66597_ADDR + R8A66597_SIZE - 1,
 105                 .flags  = IORESOURCE_MEM,
 106         },
 107         [1] = {
 108                 .name   = "r8a66597_hcd",
 109                 .start  = 2,
 110                 .end    = 2,
 111                 .flags  = IORESOURCE_IRQ,
 112         },
 113 };
 114
 115 static struct platform_device r8a66597_usb_host_device = {
 116         .name           = "r8a66597_hcd",
 117         .id             = -1,
 118         .dev = {
 119                 .dma_mask               = NULL,
 120                 .coherent_dma_mask      = 0xffffffff,
 121         },
 122         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
 123         .resource       = r8a66597_usb_host_resources,
 124 };
 125
 126 static struct resource sm501_resources[] = {
 127         [0]     = {
 128                 .start  = SM107_MEM_ADDR,
 129                 .end    = SM107_MEM_ADDR + SM107_MEM_SIZE - 1,
 130                 .flags  = IORESOURCE_MEM,
 131         },
 132         [1]     = {
 133                 .start  = SM107_REG_ADDR,
 134                 .end    = SM107_REG_ADDR + SM107_REG_SIZE - 1,
 135                 .flags  = IORESOURCE_MEM,
 136         },
 137         [2]     = {
 138                 .start  = 10,
 139                 .flags  = IORESOURCE_IRQ,
 140         },
 141 };
 142
 143 static struct fb_videomode sm501_default_mode_crt = {
 144         .pixclock       = 35714,        /* 28MHz */
 145         .xres           = 640,
 146         .yres           = 480,
 147         .left_margin    = 105,
 148         .right_margin   = 16,
 149         .upper_margin   = 33,
 150         .lower_margin   = 10,
 151         .hsync_len      = 39,
 152         .vsync_len      = 2,
 153         .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 154 };
 155
 156 static struct fb_videomode sm501_default_mode_pnl = {
 157         .pixclock       = 40000,        /* 25MHz */
 158         .xres           = 640,
 159         .yres           = 480,
 160         .left_margin    = 2,
 161         .right_margin   = 16,
 162         .upper_margin   = 33,
 163         .lower_margin   = 10,
 164         .hsync_len      = 39,
 165         .vsync_len      = 2,
 166         .sync           = 0,
 167 };
 168
 169 static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
 170         .def_bpp        = 16,
 171         .def_mode       = &sm501_default_mode_pnl,
 172         .flags          = SM501FB_FLAG_USE_INIT_MODE |
 173                           SM501FB_FLAG_USE_HWCURSOR |
 174                           SM501FB_FLAG_USE_HWACCEL |
 175                           SM501FB_FLAG_DISABLE_AT_EXIT |
 176                           SM501FB_FLAG_PANEL_NO_VBIASEN,
 177 };
 178
 179 static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
 180         .def_bpp        = 16,
 181         .def_mode       = &sm501_default_mode_crt,
 182         .flags          = SM501FB_FLAG_USE_INIT_MODE |
 183                           SM501FB_FLAG_USE_HWCURSOR |
 184                           SM501FB_FLAG_USE_HWACCEL |
 185                           SM501FB_FLAG_DISABLE_AT_EXIT,
 186 };
 187
 188 static struct sm501_platdata_fb sm501_fb_pdata = {
 189         .fb_route       = SM501_FB_OWN,
 190         .fb_crt         = &sm501_pdata_fbsub_crt,
 191         .fb_pnl         = &sm501_pdata_fbsub_pnl,
 192 };
 193
 194 static struct sm501_initdata sm501_initdata = {
 195         .gpio_high      = {
 196                 .set    = 0x00001fe0,
 197                 .mask   = 0x0,
 198         },
 199         .devices        = 0,
 200         .mclk           = 84 * 1000000,
 201         .m1xclk         = 112 * 1000000,
 202 };
 203
 204 static struct sm501_platdata sm501_platform_data = {
 205         .init           = &sm501_initdata,
 206         .fb             = &sm501_fb_pdata,
 207 };
 208
 209 static struct platform_device sm501_device = {
 210         .name           = "sm501",
 211         .id             = -1,
 212         .dev            = {
 213                 .platform_data  = &sm501_platform_data,
 214         },
 215         .num_resources  = ARRAY_SIZE(sm501_resources),
 216         .resource       = sm501_resources,
 217 };
 218
 219 static struct resource i2c_resources[] = {
 220         [0] = {
 221                 .start  = PCA9564_ADDR,
 222                 .end    = PCA9564_ADDR + PCA9564_SIZE - 1,
 223                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
 224         },
 225         [1] = {
 226                 .start  = 12,
 227                 .end    = 12,
 228                 .flags  = IORESOURCE_IRQ,
 229         },
 230 };
 231
 232 static struct i2c_pca9564_pf_platform_data i2c_platform_data = {
 233         .gpio                   = 0,
 234         .i2c_clock_speed        = I2C_PCA_CON_330kHz,
 235         .timeout                = HZ,
 236 };
 237
 238 static struct platform_device i2c_device = {
 239         .name           = "i2c-pca-platform",
 240         .id             = -1,
 241         .dev            = {
 242                 .platform_data  = &i2c_platform_data,
 243         },
 244         .num_resources  = ARRAY_SIZE(i2c_resources),
 245         .resource       = i2c_resources,
 246 };
 247
 248 static struct platform_device *sh7785lcr_devices[] __initdata = {
 249         &heartbeat_device,
 250         &nor_flash_device,
 251         &r8a66597_usb_host_device,
 252         &sm501_device,
 253         &i2c_device,
 254 };
 255
 256 static struct i2c_board_info __initdata sh7785lcr_i2c_devices[] = {
 257         {
 258                 I2C_BOARD_INFO("r2025sd", 0x32),
 259         },
 260 };
 261
 262 static int __init sh7785lcr_devices_setup(void)
 263 {
 264         i2c_register_board_info(0, sh7785lcr_i2c_devices,
 265                                 ARRAY_SIZE(sh7785lcr_i2c_devices));
 266
 267         return platform_add_devices(sh7785lcr_devices,
 268                                     ARRAY_SIZE(sh7785lcr_devices));
 269 }
 270 __initcall(sh7785lcr_devices_setup);
 271
 272 /* Initialize IRQ setting */
 273 void __init init_sh7785lcr_IRQ(void)
 274 {
 275         plat_irq_setup_pins(IRQ_MODE_IRQ7654);
 276         plat_irq_setup_pins(IRQ_MODE_IRQ3210);
 277 }
 278
 279 static int sh7785lcr_clk_init(void)
 280 {
 281         struct clk *clk;
 282         int ret;
 283
 284         clk = clk_get(NULL, "extal");
 285         if (!clk || IS_ERR(clk))
 286                 return PTR_ERR(clk);
 287         ret = clk_set_rate(clk, 33333333);
 288         clk_put(clk);
 289
 290         return ret;
 291 }
 292
 293 static void sh7785lcr_power_off(void)
 294 {
 295         unsigned char *p;
 296
 297         p = ioremap(PLD_POFCR, PLD_POFCR + 1);
 298         if (!p) {
 299                 printk(KERN_ERR "%s: ioremap error.\n", __func__);
 300                 return;
 301         }
 302         *p = 0x01;
 303         iounmap(p);
 304         set_bl_bit();
 305         while (1)
 306                 cpu_relax();
 307 }
 308
 309 /* Initialize the board */
 310 static void __init sh7785lcr_setup(char **cmdline_p)
 311 {
 312         void __iomem *sm501_reg;
 313
 314         printk(KERN_INFO "Renesas Technology Corp. R0P7785LC0011RL support.\n");
 315
 316         pm_power_off = sh7785lcr_power_off;
 317
 318         /* sm501 DRAM configuration */
 319         sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
 320         writel(0x000307c2, sm501_reg);
 321 }
 322
 323 /*
 324  * The Machine Vector
 325  */
 326 static struct sh_machine_vector mv_sh7785lcr __initmv = {
 327         .mv_name                = "SH7785LCR",
 328         .mv_setup               = sh7785lcr_setup,
 329         .mv_clk_init            = sh7785lcr_clk_init,
 330         .mv_init_irq            = init_sh7785lcr_IRQ,
 331 };
 332