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 #ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
  57         [2] = {
  58                 .start  = IRQ_CF_IDE,
  59                 .flags  = IORESOURCE_IRQ,
  60         },
  61 #endif
  62 };
  63
  64 static struct pata_platform_info pata_info = {
  65         .ioport_shift   = 1,
  66 };
  67
  68 static struct platform_device cf_ide_device  = {
  69         .name           = "pata_platform",
  70         .id             = -1,
  71         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  72         .resource       = cf_ide_resources,
  73         .dev    = {
  74                 .platform_data  = &pata_info,
  75         },
  76 };
  77
  78 static struct resource heartbeat_resources[] = {
  79         [0] = {
  80                 .start  = PA_OUTPORT,
  81                 .end    = PA_OUTPORT,
  82                 .flags  = IORESOURCE_MEM,
  83         },
  84 };
  85
  86 static struct platform_device heartbeat_device = {
  87         .name           = "heartbeat",
  88         .id             = -1,
  89         .num_resources  = ARRAY_SIZE(heartbeat_resources),
  90         .resource       = heartbeat_resources,
  91 };
  92
  93 #ifdef CONFIG_MFD_SM501
  94 static struct plat_serial8250_port uart_platform_data[] = {
  95         {
  96                 .membase        = (void __iomem *)VOYAGER_UART_BASE,
  97                 .mapbase        = VOYAGER_UART_BASE,
  98                 .iotype         = UPIO_MEM,
  99                 .irq            = IRQ_SM501_U0,
 100                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 101                 .regshift       = 2,
 102                 .uartclk        = (9600 * 16),
 103         },
 104         { 0 },
 105 };
 106
 107 static struct platform_device uart_device = {
 108         .name           = "serial8250",
 109         .id             = PLAT8250_DEV_PLATFORM,
 110         .dev            = {
 111                 .platform_data  = uart_platform_data,
 112         },
 113 };
 114
 115 static struct resource sm501_resources[] = {
 116         [0]     = {
 117                 .start  = 0x10000000,
 118                 .end    = 0x13e00000 - 1,
 119                 .flags  = IORESOURCE_MEM,
 120         },
 121         [1]     = {
 122                 .start  = 0x13e00000,
 123                 .end    = 0x13ffffff,
 124                 .flags  = IORESOURCE_MEM,
 125         },
 126         [2]     = {
 127                 .start  = IRQ_SM501_CV,
 128                 .flags  = IORESOURCE_IRQ,
 129         },
 130 };
 131
 132 static struct platform_device sm501_device = {
 133         .name           = "sm501",
 134         .id             = -1,
 135         .num_resources  = ARRAY_SIZE(sm501_resources),
 136         .resource       = sm501_resources,
 137 };
 138
 139 #endif /* CONFIG_MFD_SM501 */
 140
 141 static struct platform_device *rts7751r2d_devices[] __initdata = {
 142 #ifdef CONFIG_MFD_SM501
 143         &uart_device,
 144         &sm501_device,
 145 #endif
 146         &cf_ide_device,
 147         &heartbeat_device,
 148 };
 149
 150 static int __init rts7751r2d_devices_setup(void)
 151 {
 152         return platform_add_devices(rts7751r2d_devices,
 153                                     ARRAY_SIZE(rts7751r2d_devices));
 154 }
 155 __initcall(rts7751r2d_devices_setup);
 156
 157 static void rts7751r2d_power_off(void)
 158 {
 159         ctrl_outw(0x0001, PA_POWOFF);
 160 }
 161
 162 static inline unsigned char is_ide_ioaddr(unsigned long addr)
 163 {
 164         return ((cf_ide_resources[0].start <= addr &&
 165                  addr <= cf_ide_resources[0].end) ||
 166                 (cf_ide_resources[1].start <= addr &&
 167                  addr <= cf_ide_resources[1].end));
 168 }
 169
 170 void rts7751r2d_writeb(u8 b, void __iomem *addr)
 171 {
 172         unsigned long tmp = (unsigned long __force)addr;
 173
 174         if (is_ide_ioaddr(tmp))
 175                 ctrl_outw((u16)b, tmp);
 176         else
 177                 ctrl_outb(b, tmp);
 178 }
 179
 180 u8 rts7751r2d_readb(void __iomem *addr)
 181 {
 182         unsigned long tmp = (unsigned long __force)addr;
 183
 184         if (is_ide_ioaddr(tmp))
 185                 return ctrl_inw(tmp) & 0xff;
 186         else
 187                 return ctrl_inb(tmp);
 188 }
 189
 190 /*
 191  * Initialize the board
 192  */
 193 static void __init rts7751r2d_setup(char **cmdline_p)
 194 {
 195         u16 ver = ctrl_inw(PA_VERREG);
 196
 197         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
 198
 199         printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
 200                                         (ver >> 4) & 0xf, ver & 0xf);
 201
 202         ctrl_outw(0x0000, PA_OUTPORT);
 203         pm_power_off = rts7751r2d_power_off;
 204
 205         voyagergx_serial_init();
 206 }
 207
 208 /*
 209  * The Machine Vector
 210  */
 211 static struct sh_machine_vector mv_rts7751r2d __initmv = {
 212         .mv_name                = "RTS7751R2D",
 213         .mv_setup               = rts7751r2d_setup,
 214         .mv_init_irq            = init_rts7751r2d_IRQ,
 215         .mv_irq_demux           = rts7751r2d_irq_demux,
 216         .mv_writeb              = rts7751r2d_writeb,
 217         .mv_readb               = rts7751r2d_readb,
 218 #if defined(CONFIG_MFD_SM501) && defined(CONFIG_USB_OHCI_HCD)
 219         .mv_consistent_alloc    = voyagergx_consistent_alloc,
 220         .mv_consistent_free     = voyagergx_consistent_free,
 221 #endif
 222 };