linux/arch/sh/boards/mach-r2d/setup.c
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   1/*
   2 * Renesas Technology Sales RTS7751R2D Support.
   3 *
   4 * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
   5 * Copyright (C) 2004 - 2007 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/mtd/mtd.h>
  14#include <linux/mtd/partitions.h>
  15#include <linux/mtd/physmap.h>
  16#include <linux/ata_platform.h>
  17#include <linux/sm501.h>
  18#include <linux/sm501-regs.h>
  19#include <linux/pm.h>
  20#include <linux/fb.h>
  21#include <linux/spi/spi.h>
  22#include <linux/spi/spi_bitbang.h>
  23#include <asm/machvec.h>
  24#include <mach/r2d.h>
  25#include <asm/io.h>
  26#include <asm/io_trapped.h>
  27#include <asm/spi.h>
  28
  29static struct resource cf_ide_resources[] = {
  30        [0] = {
  31                .start  = PA_AREA5_IO + 0x1000,
  32                .end    = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
  33                .flags  = IORESOURCE_MEM,
  34        },
  35        [1] = {
  36                .start  = PA_AREA5_IO + 0x80c,
  37                .end    = PA_AREA5_IO + 0x80c,
  38                .flags  = IORESOURCE_MEM,
  39        },
  40#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
  41        [2] = {
  42                .start  = IRQ_CF_IDE,
  43                .flags  = IORESOURCE_IRQ,
  44        },
  45#endif
  46};
  47
  48static struct pata_platform_info pata_info = {
  49        .ioport_shift   = 1,
  50};
  51
  52static struct platform_device cf_ide_device  = {
  53        .name           = "pata_platform",
  54        .id             = -1,
  55        .num_resources  = ARRAY_SIZE(cf_ide_resources),
  56        .resource       = cf_ide_resources,
  57        .dev    = {
  58                .platform_data  = &pata_info,
  59        },
  60};
  61
  62static struct spi_board_info spi_bus[] = {
  63        {
  64                .modalias       = "rtc-r9701",
  65                .max_speed_hz   = 1000000,
  66                .mode           = SPI_MODE_3,
  67        },
  68};
  69
  70static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
  71{
  72        BUG_ON(cs != 0);  /* Single Epson RTC-9701JE attached on CS0 */
  73        __raw_writew(state == BITBANG_CS_ACTIVE, PA_RTCCE);
  74}
  75
  76static struct sh_spi_info spi_info = {
  77        .num_chipselect = 1,
  78        .chip_select = r2d_chip_select,
  79};
  80
  81static struct resource spi_sh_sci_resources[] = {
  82        {
  83                .start  = 0xffe00000,
  84                .end    = 0xffe0001f,
  85                .flags  = IORESOURCE_MEM,
  86        },
  87};
  88
  89static struct platform_device spi_sh_sci_device  = {
  90        .name           = "spi_sh_sci",
  91        .id             = -1,
  92        .num_resources  = ARRAY_SIZE(spi_sh_sci_resources),
  93        .resource       = spi_sh_sci_resources,
  94        .dev    = {
  95                .platform_data  = &spi_info,
  96        },
  97};
  98
  99static struct resource heartbeat_resources[] = {
 100        [0] = {
 101                .start  = PA_OUTPORT,
 102                .end    = PA_OUTPORT,
 103                .flags  = IORESOURCE_MEM,
 104        },
 105};
 106
 107static struct platform_device heartbeat_device = {
 108        .name           = "heartbeat",
 109        .id             = -1,
 110        .num_resources  = ARRAY_SIZE(heartbeat_resources),
 111        .resource       = heartbeat_resources,
 112};
 113
 114static struct resource sm501_resources[] = {
 115        [0]     = {
 116                .start  = 0x10000000,
 117                .end    = 0x13e00000 - 1,
 118                .flags  = IORESOURCE_MEM,
 119        },
 120        [1]     = {
 121                .start  = 0x13e00000,
 122                .end    = 0x13ffffff,
 123                .flags  = IORESOURCE_MEM,
 124        },
 125        [2]     = {
 126                .start  = IRQ_VOYAGER,
 127                .flags  = IORESOURCE_IRQ,
 128        },
 129};
 130
 131static struct fb_videomode sm501_default_mode = {
 132        .pixclock       = 35714,
 133        .xres           = 640,
 134        .yres           = 480,
 135        .left_margin    = 105,
 136        .right_margin   = 50,
 137        .upper_margin   = 35,
 138        .lower_margin   = 0,
 139        .hsync_len      = 96,
 140        .vsync_len      = 2,
 141        .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 142};
 143
 144static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
 145        .def_bpp        = 16,
 146        .def_mode       = &sm501_default_mode,
 147        .flags          = SM501FB_FLAG_USE_INIT_MODE |
 148                          SM501FB_FLAG_USE_HWCURSOR |
 149                          SM501FB_FLAG_USE_HWACCEL |
 150                          SM501FB_FLAG_DISABLE_AT_EXIT,
 151};
 152
 153static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
 154        .flags          = (SM501FB_FLAG_USE_INIT_MODE |
 155                           SM501FB_FLAG_USE_HWCURSOR |
 156                           SM501FB_FLAG_USE_HWACCEL |
 157                           SM501FB_FLAG_DISABLE_AT_EXIT),
 158
 159};
 160
 161static struct sm501_platdata_fb sm501_fb_pdata = {
 162        .fb_route       = SM501_FB_OWN,
 163        .fb_crt         = &sm501_pdata_fbsub_crt,
 164        .fb_pnl         = &sm501_pdata_fbsub_pnl,
 165        .flags          = SM501_FBPD_SWAP_FB_ENDIAN,
 166};
 167
 168static struct sm501_initdata sm501_initdata = {
 169        .devices        = SM501_USE_USB_HOST | SM501_USE_UART0,
 170};
 171
 172static struct sm501_platdata sm501_platform_data = {
 173        .init           = &sm501_initdata,
 174        .fb             = &sm501_fb_pdata,
 175};
 176
 177static struct platform_device sm501_device = {
 178        .name           = "sm501",
 179        .id             = -1,
 180        .dev            = {
 181                .platform_data  = &sm501_platform_data,
 182        },
 183        .num_resources  = ARRAY_SIZE(sm501_resources),
 184        .resource       = sm501_resources,
 185};
 186
 187static struct mtd_partition r2d_partitions[] = {
 188        {
 189                .name           = "U-Boot",
 190                .offset         = 0x00000000,
 191                .size           = 0x00040000,
 192                .mask_flags     = MTD_WRITEABLE,
 193        }, {
 194                .name           = "Environment",
 195                .offset         = MTDPART_OFS_NXTBLK,
 196                .size           = 0x00040000,
 197                .mask_flags     = MTD_WRITEABLE,
 198        }, {
 199                .name           = "Kernel",
 200                .offset         = MTDPART_OFS_NXTBLK,
 201                .size           = 0x001c0000,
 202        }, {
 203                .name           = "Flash_FS",
 204                .offset         = MTDPART_OFS_NXTBLK,
 205                .size           = MTDPART_SIZ_FULL,
 206        }
 207};
 208
 209static struct physmap_flash_data flash_data = {
 210        .width          = 2,
 211        .nr_parts       = ARRAY_SIZE(r2d_partitions),
 212        .parts          = r2d_partitions,
 213};
 214
 215static struct resource flash_resource = {
 216        .start          = 0x00000000,
 217        .end            = 0x02000000,
 218        .flags          = IORESOURCE_MEM,
 219};
 220
 221static struct platform_device flash_device = {
 222        .name           = "physmap-flash",
 223        .id             = -1,
 224        .resource       = &flash_resource,
 225        .num_resources  = 1,
 226        .dev            = {
 227                .platform_data = &flash_data,
 228        },
 229};
 230
 231static struct platform_device *rts7751r2d_devices[] __initdata = {
 232        &sm501_device,
 233        &heartbeat_device,
 234        &spi_sh_sci_device,
 235};
 236
 237/*
 238 * The CF is connected with a 16-bit bus where 8-bit operations are
 239 * unsupported. The linux ata driver is however using 8-bit operations, so
 240 * insert a trapped io filter to convert 8-bit operations into 16-bit.
 241 */
 242static struct trapped_io cf_trapped_io = {
 243        .resource               = cf_ide_resources,
 244        .num_resources          = 2,
 245        .minimum_bus_width      = 16,
 246};
 247
 248static int __init rts7751r2d_devices_setup(void)
 249{
 250        if (register_trapped_io(&cf_trapped_io) == 0)
 251                platform_device_register(&cf_ide_device);
 252
 253        if (mach_is_r2d_plus())
 254                platform_device_register(&flash_device);
 255
 256        spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
 257
 258        return platform_add_devices(rts7751r2d_devices,
 259                                    ARRAY_SIZE(rts7751r2d_devices));
 260}
 261device_initcall(rts7751r2d_devices_setup);
 262
 263static void rts7751r2d_power_off(void)
 264{
 265        __raw_writew(0x0001, PA_POWOFF);
 266}
 267
 268/*
 269 * Initialize the board
 270 */
 271static void __init rts7751r2d_setup(char **cmdline_p)
 272{
 273        void __iomem *sm501_reg;
 274        u16 ver = __raw_readw(PA_VERREG);
 275
 276        printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
 277
 278        printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
 279                                        (ver >> 4) & 0xf, ver & 0xf);
 280
 281        __raw_writew(0x0000, PA_OUTPORT);
 282        pm_power_off = rts7751r2d_power_off;
 283
 284        /* sm501 dram configuration:
 285         * ColSizeX = 11 - External Memory Column Size: 256 words.
 286         * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
 287         * RstX = 1 - External Memory Reset: Normal.
 288         * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
 289         * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
 290         * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
 291         * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
 292         * Rst = 1 - Internal Memory Reset: Normal.
 293         * RA = 1 - Internal Memory Remain in Active State: Do not remain.
 294         */
 295
 296        sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
 297        writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
 298}
 299
 300/*
 301 * The Machine Vector
 302 */
 303static struct sh_machine_vector mv_rts7751r2d __initmv = {
 304        .mv_name                = "RTS7751R2D",
 305        .mv_setup               = rts7751r2d_setup,
 306        .mv_init_irq            = init_rts7751r2d_IRQ,
 307        .mv_irq_demux           = rts7751r2d_irq_demux,
 308};
 309