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/pm.h>
  17 #include <asm/machvec.h>
  18 #include <asm/rts7751r2d.h>
  19 #include <asm/voyagergx.h>
  20 #include <asm/io.h>
  21
  22 static void __init voyagergx_serial_init(void)
  23 {
  24         unsigned long val;
  25
  26         /*
  27          * GPIO Control
  28          */
  29         val = readl((void __iomem *)GPIO_MUX_HIGH);
  30         val |= 0x00001fe0;
  31         writel(val, (void __iomem *)GPIO_MUX_HIGH);
  32
  33         /*
  34          * Power Mode Gate
  35          */
  36         val = readl((void __iomem *)POWER_MODE0_GATE);
  37         val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1);
  38         writel(val, (void __iomem *)POWER_MODE0_GATE);
  39
  40         val = readl((void __iomem *)POWER_MODE1_GATE);
  41         val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1);
  42         writel(val, (void __iomem *)POWER_MODE1_GATE);
  43 }
  44
  45 static struct resource cf_ide_resources[] = {
  46         [0] = {
  47                 .start  = PA_AREA5_IO + 0x1000,
  48                 .end    = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
  49                 .flags  = IORESOURCE_MEM,
  50         },
  51         [1] = {
  52                 .start  = PA_AREA5_IO + 0x80c,
  53                 .end    = PA_AREA5_IO + 0x80c,
  54                 .flags  = IORESOURCE_MEM,
  55         },
  56         [2] = {
  57                 .start  = IRQ_CF_IDE,
  58                 .flags  = IORESOURCE_IRQ,
  59         },
  60 };
  61
  62 static struct pata_platform_info pata_info = {
  63         .ioport_shift   = 1,
  64 };
  65
  66 static struct platform_device cf_ide_device  = {
  67         .name           = "pata_platform",
  68         .id             = -1,
  69         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  70         .resource       = cf_ide_resources,
  71         .dev    = {
  72                 .platform_data  = &pata_info,
  73         },
  74 };
  75
  76 static struct resource heartbeat_resources[] = {
  77         [0] = {
  78                 .start  = PA_OUTPORT,
  79                 .end    = PA_OUTPORT,
  80                 .flags  = IORESOURCE_MEM,
  81         },
  82 };
  83
  84 static struct platform_device heartbeat_device = {
  85         .name           = "heartbeat",
  86         .id             = -1,
  87         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  88         .resource       = heartbeat_resources,
  89 };
  90
  91 #ifdef CONFIG_MFD_SM501
  92 static struct plat_serial8250_port uart_platform_data[] = {
  93         {
  94                 .membase        = (void __iomem *)VOYAGER_UART_BASE,
  95                 .mapbase        = VOYAGER_UART_BASE,
  96                 .iotype         = UPIO_MEM,
  97                 .irq            = IRQ_SM501_U0,
  98                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  99                 .regshift       = 2,
 100                 .uartclk        = (9600 * 16),
 101         },
 102         { 0 },
 103 };
 104
 105 static struct platform_device uart_device = {
 106         .name           = "serial8250",
 107         .id             = PLAT8250_DEV_PLATFORM,
 108         .dev            = {
 109                 .platform_data  = uart_platform_data,
 110         },
 111 };
 112
 113 static struct resource sm501_resources[] = {
 114         [0]     = {
 115                 .start  = 0x10000000,
 116                 .end    = 0x13e00000 - 1,
 117                 .flags  = IORESOURCE_MEM,
 118         },
 119         [1]     = {
 120                 .start  = 0x13e00000,
 121                 .end    = 0x13ffffff,
 122                 .flags  = IORESOURCE_MEM,
 123         },
 124         [2]     = {
 125                 .start  = IRQ_SM501_CV,
 126                 .flags  = IORESOURCE_IRQ,
 127         },
 128 };
 129
 130 static struct platform_device sm501_device = {
 131         .name           = "sm501",
 132         .id             = -1,
 133         .num_resources  = ARRAY_SIZE(sm501_resources),
 134         .resource       = sm501_resources,
 135 };
 136
 137 #endif /* CONFIG_MFD_SM501 */
 138
 139 static struct platform_device *rts7751r2d_devices[] __initdata = {
 140 #ifdef CONFIG_MFD_SM501
 141         &uart_device,
 142         &sm501_device,
 143 #endif
 144         &cf_ide_device,
 145         &heartbeat_device,
 146 };
 147
 148 static int __init rts7751r2d_devices_setup(void)
 149 {
 150         return platform_add_devices(rts7751r2d_devices,
 151                                     ARRAY_SIZE(rts7751r2d_devices));
 152 }
 153 __initcall(rts7751r2d_devices_setup);
 154
 155 static void rts7751r2d_power_off(void)
 156 {
 157         ctrl_outw(0x0001, PA_POWOFF);
 158 }
 159
 160 static inline unsigned char is_ide_ioaddr(unsigned long addr)
 161 {
 162         return ((cf_ide_resources[0].start <= addr &&
 163                  addr <= cf_ide_resources[0].end) ||
 164                 (cf_ide_resources[1].start <= addr &&
 165                  addr <= cf_ide_resources[1].end));
 166 }
 167
 168 void rts7751r2d_writeb(u8 b, void __iomem *addr)
 169 {
 170         unsigned long tmp = (unsigned long __force)addr;
 171
 172         if (is_ide_ioaddr(tmp))
 173                 ctrl_outw((u16)b, tmp);
 174         else
 175                 ctrl_outb(b, tmp);
 176 }
 177
 178 u8 rts7751r2d_readb(void __iomem *addr)
 179 {
 180         unsigned long tmp = (unsigned long __force)addr;
 181
 182         if (is_ide_ioaddr(tmp))
 183                 return ctrl_inw(tmp) & 0xff;
 184         else
 185                 return ctrl_inb(tmp);
 186 }
 187
 188 /*
 189  * Initialize the board
 190  */
 191 static void __init rts7751r2d_setup(char **cmdline_p)
 192 {
 193         u16 ver = ctrl_inw(PA_VERREG);
 194
 195         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
 196
 197         printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
 198                                         (ver >> 4) & 0xf, ver & 0xf);
 199
 200         ctrl_outw(0x0000, PA_OUTPORT);
 201         pm_power_off = rts7751r2d_power_off;
 202
 203         voyagergx_serial_init();
 204 }
 205
 206 /*
 207  * The Machine Vector
 208  */
 209 static struct sh_machine_vector mv_rts7751r2d __initmv = {
 210         .mv_name                = "RTS7751R2D",
 211         .mv_setup               = rts7751r2d_setup,
 212         .mv_init_irq            = init_rts7751r2d_IRQ,
 213         .mv_irq_demux           = rts7751r2d_irq_demux,
 214         .mv_writeb              = rts7751r2d_writeb,
 215         .mv_readb               = rts7751r2d_readb,
 216 #if defined(CONFIG_MFD_SM501) && defined(CONFIG_USB_OHCI_HCD)
 217         .mv_consistent_alloc    = voyagergx_consistent_alloc,
 218         .mv_consistent_free     = voyagergx_consistent_free,
 219 #endif
 220 };