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 29 static 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 48 static struct pata_platform_info pata_info = { 49 .ioport_shift = 1, 50 }; 51 52 static 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 62 static struct spi_board_info spi_bus[] = { 63 { 64 .modalias = "rtc-r9701", 65 .max_speed_hz = 1000000, 66 .mode = SPI_MODE_3, 67 }, 68 }; 69 70 static 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 ctrl_outw(state == BITBANG_CS_ACTIVE, PA_RTCCE); 74 } 75 76 static struct sh_spi_info spi_info = { 77 .num_chipselect = 1, 78 .chip_select = r2d_chip_select, 79 }; 80 81 static struct resource spi_sh_sci_resources[] = { 82 { 83 .start = 0xffe00000, 84 .end = 0xffe0001f, 85 .flags = IORESOURCE_MEM, 86 }, 87 }; 88 89 static 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 99 static struct resource heartbeat_resources[] = { 100 [0] = { 101 .start = PA_OUTPORT, 102 .end = PA_OUTPORT, 103 .flags = IORESOURCE_MEM, 104 }, 105 }; 106 107 static struct platform_device heartbeat_device = { 108 .name = "heartbeat", 109 .id = -1, 110 .num_resources = ARRAY_SIZE(heartbeat_resources), 111 .resource = heartbeat_resources, 112 }; 113 114 static 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 }; 130 131 static 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 }; 143 144 static 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 }; 152 153 static 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 }; 160 161 static 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 }; 167 168 static struct sm501_initdata sm501_initdata = { 169 .devices = SM501_USE_USB_HOST | SM501_USE_UART0, 170 }; 171 172 static struct sm501_platdata sm501_platform_data = { 173 .init = &sm501_initdata, 174 .fb = &sm501_fb_pdata, 175 }; 176 177 static 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 }; 186 187 static 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 }; 208 209 static struct physmap_flash_data flash_data = { 210 .width = 2, 211 .nr_parts = ARRAY_SIZE(r2d_partitions), 212 .parts = r2d_partitions, 213 }; 214 215 static struct resource flash_resource = { 216 .start = 0x00000000, 217 .end = 0x02000000, 218 .flags = IORESOURCE_MEM, 219 }; 220 221 static 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 }; 230 231 static 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 */ 242 static struct trapped_io cf_trapped_io = { 243 .resource = cf_ide_resources, 244 .num_resources = 2, 245 .minimum_bus_width = 16, 246 }; 247 248 static 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 } 261 __initcall(rts7751r2d_devices_setup); 262 263 static void rts7751r2d_power_off(void) 264 { 265 ctrl_outw(0x0001, PA_POWOFF); 266 } 267 268 /* 269 * Initialize the board 270 */ 271 static void __init rts7751r2d_setup(char **cmdline_p) 272 { 273 void __iomem *sm501_reg; 274 u16 ver = ctrl_inw(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 ctrl_outw(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 */ 303 static 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