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/pm.h>
  16 #include <asm/machvec.h>
  17 #include <asm/rts7751r2d.h>
  18 #include <asm/voyagergx.h>
  19 #include <asm/io.h>
  20
  21 static void __init voyagergx_serial_init(void)
  22 {
  23         unsigned long val;
  24
  25         /*
  26          * GPIO Control
  27          */
  28         val = readl((void __iomem *)GPIO_MUX_HIGH);
  29         val |= 0x00001fe0;
  30         writel(val, (void __iomem *)GPIO_MUX_HIGH);
  31
  32         /*
  33          * Power Mode Gate
  34          */
  35         val = readl((void __iomem *)POWER_MODE0_GATE);
  36         val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1);
  37         writel(val, (void __iomem *)POWER_MODE0_GATE);
  38
  39         val = readl((void __iomem *)POWER_MODE1_GATE);
  40         val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1);
  41         writel(val, (void __iomem *)POWER_MODE1_GATE);
  42 }
  43
  44 static struct resource cf_ide_resources[] = {
  45         [0] = {
  46                 .start  = PA_AREA5_IO + 0x1000,
  47                 .end    = PA_AREA5_IO + 0x1000 + 0x08 - 1,
  48                 .flags  = IORESOURCE_MEM,
  49         },
  50         [1] = {
  51                 .start  = PA_AREA5_IO + 0x80c,
  52                 .end    = PA_AREA5_IO + 0x80c + 0x16 - 1,
  53                 .flags  = IORESOURCE_MEM,
  54         },
  55         [2] = {
  56 #ifdef CONFIG_RTS7751R2D_REV11
  57                 .start  = 1,
  58 #else
  59                 .start  = 2,
  60 #endif
  61                 .flags  = IORESOURCE_IRQ,
  62         },
  63 };
  64
  65 static struct pata_platform_info pata_info = {
  66         .ioport_shift   = 1,
  67 };
  68
  69 static struct platform_device cf_ide_device  = {
  70         .name           = "pata_platform",
  71         .id             = -1,
  72         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  73         .resource       = cf_ide_resources,
  74         .dev    = {
  75                 .platform_data  = &pata_info,
  76         },
  77 };
  78
  79 static struct plat_serial8250_port uart_platform_data[] = {
  80         {
  81                 .membase        = (void __iomem *)VOYAGER_UART_BASE,
  82                 .mapbase        = VOYAGER_UART_BASE,
  83                 .iotype         = UPIO_MEM,
  84                 .irq            = VOYAGER_UART0_IRQ,
  85                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  86                 .regshift       = 2,
  87                 .uartclk        = (9600 * 16),
  88         }
  89 };
  90
  91 static struct platform_device uart_device = {
  92         .name           = "serial8250",
  93         .id             = PLAT8250_DEV_PLATFORM,
  94         .dev            = {
  95                 .platform_data  = uart_platform_data,
  96         },
  97 };
  98
  99 static struct resource heartbeat_resources[] = {
 100         [0] = {
 101                 .start  = PA_OUTPORT,
 102                 .end    = PA_OUTPORT + 8 - 1,
 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 platform_device *rts7751r2d_devices[] __initdata = {
 115         &uart_device,
 116         &heartbeat_device,
 117         &cf_ide_device,
 118 };
 119
 120 static int __init rts7751r2d_devices_setup(void)
 121 {
 122         return platform_add_devices(rts7751r2d_devices,
 123                                     ARRAY_SIZE(rts7751r2d_devices));
 124 }
 125 __initcall(rts7751r2d_devices_setup);
 126
 127 static void rts7751r2d_power_off(void)
 128 {
 129         ctrl_outw(0x0001, PA_POWOFF);
 130 }
 131
 132 /*
 133  * Initialize the board
 134  */
 135 static void __init rts7751r2d_setup(char **cmdline_p)
 136 {
 137         u16 ver = ctrl_inw(PA_VERREG);
 138
 139         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
 140
 141         printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
 142                                         (ver >> 4) & 0xf, ver & 0xf);
 143
 144         ctrl_outw(0x0000, PA_OUTPORT);
 145         pm_power_off = rts7751r2d_power_off;
 146
 147         voyagergx_serial_init();
 148 }
 149
 150 /*
 151  * The Machine Vector
 152  */
 153 struct sh_machine_vector mv_rts7751r2d __initmv = {
 154         .mv_name                = "RTS7751R2D",
 155         .mv_setup               = rts7751r2d_setup,
 156         .mv_nr_irqs             = 72,
 157
 158         .mv_init_irq            = init_rts7751r2d_IRQ,
 159         .mv_irq_demux           = rts7751r2d_irq_demux,
 160
 161 #ifdef CONFIG_USB_SM501
 162         .mv_consistent_alloc    = voyagergx_consistent_alloc,
 163         .mv_consistent_free     = voyagergx_consistent_free,
 164 #endif
 165 };
 166 ALIAS_MV(rts7751r2d)