arch/mips/jazz/setup.c

   1 /*
   2  * Setup pointers to hardware-dependent routines.
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 1996, 1997, 1998, 2001, 07, 08 by Ralf Baechle
   9  * Copyright (C) 2001 MIPS Technologies, Inc.
  10  * Copyright (C) 2007 by Thomas Bogendoerfer
  11  */
  12 #include <linux/eisa.h>
  13 #include <linux/init.h>
  14 #include <linux/ioport.h>
  15 #include <linux/console.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/serial_8250.h>
  18 #include <linux/dma-mapping.h>
  19 #include <linux/pgtable.h>
  20
  21 #include <asm/jazz.h>
  22 #include <asm/jazzdma.h>
  23 #include <asm/reboot.h>
  24 #include <asm/tlbmisc.h>
  25
  26 extern void jazz_machine_restart(char *command);
  27
  28 static struct resource jazz_io_resources[] = {
  29         {
  30                 .start  = 0x00,
  31                 .end    = 0x1f,
  32                 .name   = "dma1",
  33                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  34         }, {
  35                 .start  = 0x40,
  36                 .end    = 0x5f,
  37                 .name   = "timer",
  38                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  39         }, {
  40                 .start  = 0x80,
  41                 .end    = 0x8f,
  42                 .name   = "dma page reg",
  43                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  44         }, {
  45                 .start  = 0xc0,
  46                 .end    = 0xdf,
  47                 .name   = "dma2",
  48                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  49         }
  50 };
  51
  52 void __init plat_mem_setup(void)
  53 {
  54         int i;
  55
  56         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
  57         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
  58         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
  59         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
  60         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
  61         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
  62
  63         set_io_port_base(JAZZ_PORT_BASE);
  64 #ifdef CONFIG_EISA
  65         EISA_bus = 1;
  66 #endif
  67
  68         /* request I/O space for devices used on all i[345]86 PCs */
  69         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
  70                 request_resource(&ioport_resource, jazz_io_resources + i);
  71
  72         /* The RTC is outside the port address space */
  73
  74         _machine_restart = jazz_machine_restart;
  75
  76         add_preferred_console("ttyS", 0, "9600");
  77 }
  78
  79 #ifdef CONFIG_OLIVETTI_M700
  80 #define UART_CLK  1843200
  81 #else
  82 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
  83    exactly which ones ... XXX */
  84 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
  85 #endif
  86
  87 #define MEMPORT(_base, _irq)                            \
  88         {                                               \
  89                 .mapbase        = (_base),              \
  90                 .membase        = (void *)(_base),      \
  91                 .irq            = (_irq),               \
  92                 .uartclk        = UART_CLK,             \
  93                 .iotype         = UPIO_MEM,             \
  94                 .flags          = UPF_BOOT_AUTOCONF,    \
  95         }
  96
  97 static struct plat_serial8250_port jazz_serial_data[] = {
  98         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
  99         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 100         { },
 101 };
 102
 103 static struct platform_device jazz_serial8250_device = {
 104         .name                   = "serial8250",
 105         .id                     = PLAT8250_DEV_PLATFORM,
 106         .dev                    = {
 107                 .platform_data  = jazz_serial_data,
 108         },
 109 };
 110
 111 static struct resource jazz_esp_rsrc[] = {
 112         {
 113                 .start = JAZZ_SCSI_BASE,
 114                 .end   = JAZZ_SCSI_BASE + 31,
 115                 .flags = IORESOURCE_MEM
 116         },
 117         {
 118                 .start = JAZZ_SCSI_DMA,
 119                 .end   = JAZZ_SCSI_DMA,
 120                 .flags = IORESOURCE_MEM
 121         },
 122         {
 123                 .start = JAZZ_SCSI_IRQ,
 124                 .end   = JAZZ_SCSI_IRQ,
 125                 .flags = IORESOURCE_IRQ
 126         }
 127 };
 128
 129 static u64 jazz_esp_dma_mask = DMA_BIT_MASK(32);
 130
 131 static struct platform_device jazz_esp_pdev = {
 132         .name           = "jazz_esp",
 133         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 134         .resource       = jazz_esp_rsrc,
 135         .dev = {
 136                 .dma_mask          = &jazz_esp_dma_mask,
 137                 .coherent_dma_mask = DMA_BIT_MASK(32),
 138         }
 139 };
 140
 141 static struct resource jazz_sonic_rsrc[] = {
 142         {
 143                 .start = JAZZ_ETHERNET_BASE,
 144                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 145                 .flags = IORESOURCE_MEM
 146         },
 147         {
 148                 .start = JAZZ_ETHERNET_IRQ,
 149                 .end   = JAZZ_ETHERNET_IRQ,
 150                 .flags = IORESOURCE_IRQ
 151         }
 152 };
 153
 154 static u64 jazz_sonic_dma_mask = DMA_BIT_MASK(32);
 155
 156 static struct platform_device jazz_sonic_pdev = {
 157         .name           = "jazzsonic",
 158         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 159         .resource       = jazz_sonic_rsrc,
 160         .dev = {
 161                 .dma_mask          = &jazz_sonic_dma_mask,
 162                 .coherent_dma_mask = DMA_BIT_MASK(32),
 163         }
 164 };
 165
 166 static struct resource jazz_cmos_rsrc[] = {
 167         {
 168                 .start = 0x70,
 169                 .end   = 0x71,
 170                 .flags = IORESOURCE_IO
 171         },
 172         {
 173                 .start = 8,
 174                 .end   = 8,
 175                 .flags = IORESOURCE_IRQ
 176         }
 177 };
 178
 179 static struct platform_device jazz_cmos_pdev = {
 180         .name           = "rtc_cmos",
 181         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 182         .resource       = jazz_cmos_rsrc
 183 };
 184
 185 static struct platform_device pcspeaker_pdev = {
 186         .name           = "pcspkr",
 187         .id             = -1,
 188 };
 189
 190 static int __init jazz_setup_devinit(void)
 191 {
 192         platform_device_register(&jazz_serial8250_device);
 193         platform_device_register(&jazz_esp_pdev);
 194         platform_device_register(&jazz_sonic_pdev);
 195         platform_device_register(&jazz_cmos_pdev);
 196         platform_device_register(&pcspeaker_pdev);
 197
 198         return 0;
 199 }
 200
 201 device_initcall(jazz_setup_devinit);