arch/sh/boards/board-sh7785lcr.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Renesas Technology Corp. R0P7785LC0011RL Support.
   4  *
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   6  * Copyright (C) 2009  Paul Mundt
   7  */
   8 #include <linux/init.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/sm501.h>
  11 #include <linux/sm501-regs.h>
  12 #include <linux/fb.h>
  13 #include <linux/mtd/physmap.h>
  14 #include <linux/delay.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/i2c.h>
  17 #include <linux/platform_data/i2c-pca-platform.h>
  18 #include <linux/i2c-algo-pca.h>
  19 #include <linux/usb/r8a66597.h>
  20 #include <linux/sh_intc.h>
  21 #include <linux/irq.h>
  22 #include <linux/io.h>
  23 #include <linux/clk.h>
  24 #include <linux/errno.h>
  25 #include <linux/gpio/machine.h>
  26 #include <mach/sh7785lcr.h>
  27 #include <cpu/sh7785.h>
  28 #include <asm/heartbeat.h>
  29 #include <asm/clock.h>
  30 #include <asm/bl_bit.h>
  31
  32 /*
  33  * NOTE: This board has 2 physical memory maps.
  34  *       Please look at include/asm-sh/sh7785lcr.h or hardware manual.
  35  */
  36 static struct resource heartbeat_resource = {
  37         .start  = PLD_LEDCR,
  38         .end    = PLD_LEDCR,
  39         .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
  40 };
  41
  42 static struct platform_device heartbeat_device = {
  43         .name           = "heartbeat",
  44         .id             = -1,
  45         .num_resources  = 1,
  46         .resource       = &heartbeat_resource,
  47 };
  48
  49 static struct mtd_partition nor_flash_partitions[] = {
  50         {
  51                 .name           = "loader",
  52                 .offset         = 0x00000000,
  53                 .size           = 512 * 1024,
  54         },
  55         {
  56                 .name           = "bootenv",
  57                 .offset         = MTDPART_OFS_APPEND,
  58                 .size           = 512 * 1024,
  59         },
  60         {
  61                 .name           = "kernel",
  62                 .offset         = MTDPART_OFS_APPEND,
  63                 .size           = 4 * 1024 * 1024,
  64         },
  65         {
  66                 .name           = "data",
  67                 .offset         = MTDPART_OFS_APPEND,
  68                 .size           = MTDPART_SIZ_FULL,
  69         },
  70 };
  71
  72 static struct physmap_flash_data nor_flash_data = {
  73         .width          = 4,
  74         .parts          = nor_flash_partitions,
  75         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  76 };
  77
  78 static struct resource nor_flash_resources[] = {
  79         [0]     = {
  80                 .start  = NOR_FLASH_ADDR,
  81                 .end    = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 1,
  82                 .flags  = IORESOURCE_MEM,
  83         }
  84 };
  85
  86 static struct platform_device nor_flash_device = {
  87         .name           = "physmap-flash",
  88         .dev            = {
  89                 .platform_data  = &nor_flash_data,
  90         },
  91         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  92         .resource       = nor_flash_resources,
  93 };
  94
  95 static struct r8a66597_platdata r8a66597_data = {
  96         .xtal = R8A66597_PLATDATA_XTAL_12MHZ,
  97         .vif = 1,
  98 };
  99
 100 static struct resource r8a66597_usb_host_resources[] = {
 101         [0] = {
 102                 .start  = R8A66597_ADDR,
 103                 .end    = R8A66597_ADDR + R8A66597_SIZE - 1,
 104                 .flags  = IORESOURCE_MEM,
 105         },
 106         [1] = {
 107                 .start  = evt2irq(0x240),
 108                 .end    = evt2irq(0x240),
 109                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
 110         },
 111 };
 112
 113 static struct platform_device r8a66597_usb_host_device = {
 114         .name           = "r8a66597_hcd",
 115         .id             = -1,
 116         .dev = {
 117                 .dma_mask               = NULL,
 118                 .coherent_dma_mask      = 0xffffffff,
 119                 .platform_data          = &r8a66597_data,
 120         },
 121         .num_resources  = ARRAY_SIZE(r8a66597_usb_host_resources),
 122         .resource       = r8a66597_usb_host_resources,
 123 };
 124
 125 static struct resource sm501_resources[] = {
 126         [0]     = {
 127                 .start  = SM107_MEM_ADDR,
 128                 .end    = SM107_MEM_ADDR + SM107_MEM_SIZE - 1,
 129                 .flags  = IORESOURCE_MEM,
 130         },
 131         [1]     = {
 132                 .start  = SM107_REG_ADDR,
 133                 .end    = SM107_REG_ADDR + SM107_REG_SIZE - 1,
 134                 .flags  = IORESOURCE_MEM,
 135         },
 136         [2]     = {
 137                 .start  = evt2irq(0x340),
 138                 .flags  = IORESOURCE_IRQ,
 139         },
 140 };
 141
 142 static struct fb_videomode sm501_default_mode_crt = {
 143         .pixclock       = 35714,        /* 28MHz */
 144         .xres           = 640,
 145         .yres           = 480,
 146         .left_margin    = 105,
 147         .right_margin   = 16,
 148         .upper_margin   = 33,
 149         .lower_margin   = 10,
 150         .hsync_len      = 39,
 151         .vsync_len      = 2,
 152         .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 153 };
 154
 155 static struct fb_videomode sm501_default_mode_pnl = {
 156         .pixclock       = 40000,        /* 25MHz */
 157         .xres           = 640,
 158         .yres           = 480,
 159         .left_margin    = 2,
 160         .right_margin   = 16,
 161         .upper_margin   = 33,
 162         .lower_margin   = 10,
 163         .hsync_len      = 39,
 164         .vsync_len      = 2,
 165         .sync           = 0,
 166 };
 167
 168 static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
 169         .def_bpp        = 16,
 170         .def_mode       = &sm501_default_mode_pnl,
 171         .flags          = SM501FB_FLAG_USE_INIT_MODE |
 172                           SM501FB_FLAG_USE_HWCURSOR |
 173                           SM501FB_FLAG_USE_HWACCEL |
 174                           SM501FB_FLAG_DISABLE_AT_EXIT |
 175                           SM501FB_FLAG_PANEL_NO_VBIASEN,
 176 };
 177
 178 static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
 179         .def_bpp        = 16,
 180         .def_mode       = &sm501_default_mode_crt,
 181         .flags          = SM501FB_FLAG_USE_INIT_MODE |
 182                           SM501FB_FLAG_USE_HWCURSOR |
 183                           SM501FB_FLAG_USE_HWACCEL |
 184                           SM501FB_FLAG_DISABLE_AT_EXIT,
 185 };
 186
 187 static struct sm501_platdata_fb sm501_fb_pdata = {
 188         .fb_route       = SM501_FB_OWN,
 189         .fb_crt         = &sm501_pdata_fbsub_crt,
 190         .fb_pnl         = &sm501_pdata_fbsub_pnl,
 191 };
 192
 193 static struct sm501_initdata sm501_initdata = {
 194         .gpio_high      = {
 195                 .set    = 0x00001fe0,
 196                 .mask   = 0x0,
 197         },
 198         .devices        = 0,
 199         .mclk           = 84 * 1000000,
 200         .m1xclk         = 112 * 1000000,
 201 };
 202
 203 static struct sm501_platdata sm501_platform_data = {
 204         .init           = &sm501_initdata,
 205         .fb             = &sm501_fb_pdata,
 206 };
 207
 208 static struct platform_device sm501_device = {
 209         .name           = "sm501",
 210         .id             = -1,
 211         .dev            = {
 212                 .platform_data  = &sm501_platform_data,
 213         },
 214         .num_resources  = ARRAY_SIZE(sm501_resources),
 215         .resource       = sm501_resources,
 216 };
 217
 218 static struct resource i2c_proto_resources[] = {
 219         [0] = {
 220                 .start  = PCA9564_PROTO_32BIT_ADDR,
 221                 .end    = PCA9564_PROTO_32BIT_ADDR + PCA9564_SIZE - 1,
 222                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
 223         },
 224         [1] = {
 225                 .start  = evt2irq(0x380),
 226                 .end    = evt2irq(0x380),
 227                 .flags  = IORESOURCE_IRQ,
 228         },
 229 };
 230
 231 static struct resource i2c_resources[] = {
 232         [0] = {
 233                 .start  = PCA9564_ADDR,
 234                 .end    = PCA9564_ADDR + PCA9564_SIZE - 1,
 235                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
 236         },
 237         [1] = {
 238                 .start  = evt2irq(0x380),
 239                 .end    = evt2irq(0x380),
 240                 .flags  = IORESOURCE_IRQ,
 241         },
 242 };
 243
 244 static struct gpiod_lookup_table i2c_gpio_table = {
 245         .dev_id = "i2c.0",
 246         .table = {
 247                 GPIO_LOOKUP("pfc-sh7757", 0, "reset-gpios", GPIO_ACTIVE_LOW),
 248                 { },
 249         },
 250 };
 251
 252 static struct i2c_pca9564_pf_platform_data i2c_platform_data = {
 253         .i2c_clock_speed        = I2C_PCA_CON_330kHz,
 254         .timeout                = HZ,
 255 };
 256
 257 static struct platform_device i2c_device = {
 258         .name           = "i2c-pca-platform",
 259         .id             = -1,
 260         .dev            = {
 261                 .platform_data  = &i2c_platform_data,
 262         },
 263         .num_resources  = ARRAY_SIZE(i2c_resources),
 264         .resource       = i2c_resources,
 265 };
 266
 267 static struct platform_device *sh7785lcr_devices[] __initdata = {
 268         &heartbeat_device,
 269         &nor_flash_device,
 270         &r8a66597_usb_host_device,
 271         &sm501_device,
 272         &i2c_device,
 273 };
 274
 275 static struct i2c_board_info __initdata sh7785lcr_i2c_devices[] = {
 276         {
 277                 I2C_BOARD_INFO("r2025sd", 0x32),
 278         },
 279 };
 280
 281 static int __init sh7785lcr_devices_setup(void)
 282 {
 283         i2c_register_board_info(0, sh7785lcr_i2c_devices,
 284                                 ARRAY_SIZE(sh7785lcr_i2c_devices));
 285
 286         if (mach_is_sh7785lcr_pt()) {
 287                 i2c_device.resource = i2c_proto_resources;
 288                 i2c_device.num_resources = ARRAY_SIZE(i2c_proto_resources);
 289         }
 290
 291         gpiod_add_lookup_table(&i2c_gpio_table);
 292         return platform_add_devices(sh7785lcr_devices,
 293                                     ARRAY_SIZE(sh7785lcr_devices));
 294 }
 295 device_initcall(sh7785lcr_devices_setup);
 296
 297 /* Initialize IRQ setting */
 298 static void __init init_sh7785lcr_IRQ(void)
 299 {
 300         plat_irq_setup_pins(IRQ_MODE_IRQ7654);
 301         plat_irq_setup_pins(IRQ_MODE_IRQ3210);
 302 }
 303
 304 static int sh7785lcr_clk_init(void)
 305 {
 306         struct clk *clk;
 307         int ret;
 308
 309         clk = clk_get(NULL, "extal");
 310         if (IS_ERR(clk))
 311                 return PTR_ERR(clk);
 312         ret = clk_set_rate(clk, 33333333);
 313         clk_put(clk);
 314
 315         return ret;
 316 }
 317
 318 static void sh7785lcr_power_off(void)
 319 {
 320         unsigned char *p;
 321
 322         p = ioremap(PLD_POFCR, PLD_POFCR + 1);
 323         if (!p) {
 324                 printk(KERN_ERR "%s: ioremap error.\n", __func__);
 325                 return;
 326         }
 327         *p = 0x01;
 328         iounmap(p);
 329         set_bl_bit();
 330         while (1)
 331                 cpu_relax();
 332 }
 333
 334 /* Initialize the board */
 335 static void __init sh7785lcr_setup(char **cmdline_p)
 336 {
 337         void __iomem *sm501_reg;
 338
 339         printk(KERN_INFO "Renesas Technology Corp. R0P7785LC0011RL support.\n");
 340
 341         pm_power_off = sh7785lcr_power_off;
 342
 343         /* sm501 DRAM configuration */
 344         sm501_reg = ioremap(SM107_REG_ADDR, SM501_DRAM_CONTROL);
 345         if (!sm501_reg) {
 346                 printk(KERN_ERR "%s: ioremap error.\n", __func__);
 347                 return;
 348         }
 349
 350         writel(0x000307c2, sm501_reg + SM501_DRAM_CONTROL);
 351         iounmap(sm501_reg);
 352 }
 353
 354 /* Return the board specific boot mode pin configuration */
 355 static int sh7785lcr_mode_pins(void)
 356 {
 357         int value = 0;
 358
 359         /* These are the factory default settings of S1 and S2.
 360          * If you change these dip switches then you will need to
 361          * adjust the values below as well.
 362          */
 363         value |= MODE_PIN4; /* Clock Mode 16 */
 364         value |= MODE_PIN5; /* 32-bit Area0 bus width */
 365         value |= MODE_PIN6; /* 32-bit Area0 bus width */
 366         value |= MODE_PIN7; /* Area 0 SRAM interface [fixed] */
 367         value |= MODE_PIN8; /* Little Endian */
 368         value |= MODE_PIN9; /* Master Mode */
 369         value |= MODE_PIN14; /* No PLL step-up */
 370
 371         return value;
 372 }
 373
 374 /*
 375  * The Machine Vector
 376  */
 377 static struct sh_machine_vector mv_sh7785lcr __initmv = {
 378         .mv_name                = "SH7785LCR",
 379         .mv_setup               = sh7785lcr_setup,
 380         .mv_clk_init            = sh7785lcr_clk_init,
 381         .mv_init_irq            = init_sh7785lcr_IRQ,
 382         .mv_mode_pins           = sh7785lcr_mode_pins,
 383 };
 384