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