arch/sh/boards/renesas/rts7751r2d/setup.c

   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/pata_platform.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/sm501.h>
  16 #include <linux/sm501-regs.h>
  17 #include <linux/pm.h>
  18 #include <linux/fb.h>
  19 #include <asm/machvec.h>
  20 #include <asm/rts7751r2d.h>
  21 #include <asm/io.h>
  22
  23 static struct resource cf_ide_resources[] = {
  24         [0] = {
  25                 .start  = PA_AREA5_IO + 0x1000,
  26                 .end    = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
  27                 .flags  = IORESOURCE_MEM,
  28         },
  29         [1] = {
  30                 .start  = PA_AREA5_IO + 0x80c,
  31                 .end    = PA_AREA5_IO + 0x80c,
  32                 .flags  = IORESOURCE_MEM,
  33         },
  34 #ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
  35         [2] = {
  36                 .start  = IRQ_CF_IDE,
  37                 .flags  = IORESOURCE_IRQ,
  38         },
  39 #endif
  40 };
  41
  42 static struct pata_platform_info pata_info = {
  43         .ioport_shift   = 1,
  44 };
  45
  46 static struct platform_device cf_ide_device  = {
  47         .name           = "pata_platform",
  48         .id             = -1,
  49         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  50         .resource       = cf_ide_resources,
  51         .dev    = {
  52                 .platform_data  = &pata_info,
  53         },
  54 };
  55
  56 static struct resource heartbeat_resources[] = {
  57         [0] = {
  58                 .start  = PA_OUTPORT,
  59                 .end    = PA_OUTPORT,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62 };
  63
  64 static struct platform_device heartbeat_device = {
  65         .name           = "heartbeat",
  66         .id             = -1,
  67         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  68         .resource       = heartbeat_resources,
  69 };
  70
  71 #ifdef CONFIG_MFD_SM501
  72 static struct plat_serial8250_port uart_platform_data[] = {
  73         {
  74                 .membase        = (void __iomem *)0xb3e30000,
  75                 .mapbase        = 0xb3e30000,
  76                 .iotype         = UPIO_MEM,
  77                 .irq            = IRQ_VOYAGER,
  78                 .flags          = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ,
  79                 .regshift       = 2,
  80                 .uartclk        = (9600 * 16),
  81         },
  82         { 0 },
  83 };
  84
  85 static struct platform_device uart_device = {
  86         .name           = "serial8250",
  87         .id             = PLAT8250_DEV_PLATFORM,
  88         .dev            = {
  89                 .platform_data  = uart_platform_data,
  90         },
  91 };
  92
  93 static struct resource sm501_resources[] = {
  94         [0]     = {
  95                 .start  = 0x10000000,
  96                 .end    = 0x13e00000 - 1,
  97                 .flags  = IORESOURCE_MEM,
  98         },
  99         [1]     = {
 100                 .start  = 0x13e00000,
 101                 .end    = 0x13ffffff,
 102                 .flags  = IORESOURCE_MEM,
 103         },
 104         [2]     = {
 105                 .start  = IRQ_VOYAGER,
 106                 .flags  = IORESOURCE_IRQ,
 107         },
 108 };
 109
 110 static struct fb_videomode sm501_default_mode = {
 111         .pixclock       = 35714,
 112         .xres           = 640,
 113         .yres           = 480,
 114         .left_margin    = 105,
 115         .right_margin   = 50,
 116         .upper_margin   = 35,
 117         .lower_margin   = 0,
 118         .hsync_len      = 96,
 119         .vsync_len      = 2,
 120         .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 121 };
 122
 123 static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
 124         .def_bpp        = 16,
 125         .def_mode       = &sm501_default_mode,
 126         .flags          = SM501FB_FLAG_USE_INIT_MODE |
 127                           SM501FB_FLAG_USE_HWCURSOR |
 128                           SM501FB_FLAG_USE_HWACCEL |
 129                           SM501FB_FLAG_DISABLE_AT_EXIT,
 130 };
 131
 132 static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
 133         .flags          = (SM501FB_FLAG_USE_INIT_MODE |
 134                            SM501FB_FLAG_USE_HWCURSOR |
 135                            SM501FB_FLAG_USE_HWACCEL |
 136                            SM501FB_FLAG_DISABLE_AT_EXIT),
 137
 138 };
 139
 140 static struct sm501_platdata_fb sm501_fb_pdata = {
 141         .fb_route       = SM501_FB_OWN,
 142         .fb_crt         = &sm501_pdata_fbsub_crt,
 143         .fb_pnl         = &sm501_pdata_fbsub_pnl,
 144         .flags          = SM501_FBPD_SWAP_FB_ENDIAN,
 145 };
 146
 147 static struct sm501_initdata sm501_initdata = {
 148         .gpio_high      = {
 149                 .set    = 0x00001fe0,
 150                 .mask   = 0x0,
 151         },
 152 };
 153
 154 static struct sm501_platdata sm501_platform_data = {
 155         .init           = &sm501_initdata,
 156         .fb             = &sm501_fb_pdata,
 157 };
 158
 159 static struct platform_device sm501_device = {
 160         .name           = "sm501",
 161         .id             = -1,
 162         .dev            = {
 163                 .platform_data  = &sm501_platform_data,
 164         },
 165         .num_resources  = ARRAY_SIZE(sm501_resources),
 166         .resource       = sm501_resources,
 167 };
 168
 169 #endif /* CONFIG_MFD_SM501 */
 170
 171 static struct platform_device *rts7751r2d_devices[] __initdata = {
 172 #ifdef CONFIG_MFD_SM501
 173         &uart_device,
 174         &sm501_device,
 175 #endif
 176         &cf_ide_device,
 177         &heartbeat_device,
 178 };
 179
 180 static int __init rts7751r2d_devices_setup(void)
 181 {
 182         return platform_add_devices(rts7751r2d_devices,
 183                                     ARRAY_SIZE(rts7751r2d_devices));
 184 }
 185 __initcall(rts7751r2d_devices_setup);
 186
 187 static void rts7751r2d_power_off(void)
 188 {
 189         ctrl_outw(0x0001, PA_POWOFF);
 190 }
 191
 192 static inline unsigned char is_ide_ioaddr(unsigned long addr)
 193 {
 194         return ((cf_ide_resources[0].start <= addr &&
 195                  addr <= cf_ide_resources[0].end) ||
 196                 (cf_ide_resources[1].start <= addr &&
 197                  addr <= cf_ide_resources[1].end));
 198 }
 199
 200 void rts7751r2d_writeb(u8 b, void __iomem *addr)
 201 {
 202         unsigned long tmp = (unsigned long __force)addr;
 203
 204         if (is_ide_ioaddr(tmp))
 205                 ctrl_outw((u16)b, tmp);
 206         else
 207                 ctrl_outb(b, tmp);
 208 }
 209
 210 u8 rts7751r2d_readb(void __iomem *addr)
 211 {
 212         unsigned long tmp = (unsigned long __force)addr;
 213
 214         if (is_ide_ioaddr(tmp))
 215                 return ctrl_inw(tmp) & 0xff;
 216         else
 217                 return ctrl_inb(tmp);
 218 }
 219
 220 /*
 221  * Initialize the board
 222  */
 223 static void __init rts7751r2d_setup(char **cmdline_p)
 224 {
 225         void __iomem *sm501_reg;
 226         u16 ver = ctrl_inw(PA_VERREG);
 227
 228         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
 229
 230         printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
 231                                         (ver >> 4) & 0xf, ver & 0xf);
 232
 233         ctrl_outw(0x0000, PA_OUTPORT);
 234         pm_power_off = rts7751r2d_power_off;
 235
 236         /* sm501 dram configuration:
 237          * ColSizeX = 11 - External Memory Column Size: 256 words.
 238          * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
 239          * RstX = 1 - External Memory Reset: Normal.
 240          * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
 241          * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
 242          * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
 243          * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
 244          * Rst = 1 - Internal Memory Reset: Normal.
 245          * RA = 1 - Internal Memory Remain in Active State: Do not remain.
 246          */
 247
 248         sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
 249         writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
 250
 251         /*
 252          * Power Mode Gate - Enable UART0
 253          */
 254
 255         sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_0_GATE;
 256         writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
 257
 258         sm501_reg = (void __iomem *)0xb3e00000 + SM501_POWER_MODE_1_GATE;
 259         writel(readl(sm501_reg) | (1 << SM501_GATE_UART0), sm501_reg);
 260 }
 261
 262 /*
 263  * The Machine Vector
 264  */
 265 static struct sh_machine_vector mv_rts7751r2d __initmv = {
 266         .mv_name                = "RTS7751R2D",
 267         .mv_setup               = rts7751r2d_setup,
 268         .mv_init_irq            = init_rts7751r2d_IRQ,
 269         .mv_irq_demux           = rts7751r2d_irq_demux,
 270         .mv_writeb              = rts7751r2d_writeb,
 271         .mv_readb               = rts7751r2d_readb,
 272 };