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/screen_info.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/serial_8250.h>
  19 #include <linux/dma-mapping.h>
  20
  21 #include <asm/jazz.h>
  22 #include <asm/jazzdma.h>
  23 #include <asm/reboot.h>
  24 #include <asm/pgtable.h>
  25 #include <asm/tlbmisc.h>
  26
  27 extern asmlinkage void jazz_handle_int(void);
  28
  29 extern void jazz_machine_restart(char *command);
  30
  31 static struct resource jazz_io_resources[] = {
  32         {
  33                 .start  = 0x00,
  34                 .end    = 0x1f,
  35                 .name   = "dma1",
  36                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  37         }, {
  38                 .start  = 0x40,
  39                 .end    = 0x5f,
  40                 .name   = "timer",
  41                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  42         }, {
  43                 .start  = 0x80,
  44                 .end    = 0x8f,
  45                 .name   = "dma page reg",
  46                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  47         }, {
  48                 .start  = 0xc0,
  49                 .end    = 0xdf,
  50                 .name   = "dma2",
  51                 .flags  = IORESOURCE_IO | IORESOURCE_BUSY
  52         }
  53 };
  54
  55 void __init plat_mem_setup(void)
  56 {
  57         int i;
  58
  59         /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
  60         add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
  61         /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
  62         add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
  63         /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
  64         add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
  65
  66         set_io_port_base(JAZZ_PORT_BASE);
  67 #ifdef CONFIG_EISA
  68         EISA_bus = 1;
  69 #endif
  70
  71         /* request I/O space for devices used on all i[345]86 PCs */
  72         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
  73                 request_resource(&ioport_resource, jazz_io_resources + i);
  74
  75         /* The RTC is outside the port address space */
  76
  77         _machine_restart = jazz_machine_restart;
  78
  79 #ifdef CONFIG_VT
  80         screen_info = (struct screen_info) {
  81                 .orig_video_cols        = 160,
  82                 .orig_video_lines       = 64,
  83                 .orig_video_points      = 16,
  84         };
  85 #endif
  86
  87         add_preferred_console("ttyS", 0, "9600");
  88 }
  89
  90 #ifdef CONFIG_OLIVETTI_M700
  91 #define UART_CLK  1843200
  92 #else
  93 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
  94    exactly which ones ... XXX */
  95 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
  96 #endif
  97
  98 #define MEMPORT(_base, _irq)                            \
  99         {                                               \
 100                 .mapbase        = (_base),              \
 101                 .membase        = (void *)(_base),      \
 102                 .irq            = (_irq),               \
 103                 .uartclk        = UART_CLK,             \
 104                 .iotype         = UPIO_MEM,             \
 105                 .flags          = UPF_BOOT_AUTOCONF,    \
 106         }
 107
 108 static struct plat_serial8250_port jazz_serial_data[] = {
 109         MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
 110         MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
 111         { },
 112 };
 113
 114 static struct platform_device jazz_serial8250_device = {
 115         .name                   = "serial8250",
 116         .id                     = PLAT8250_DEV_PLATFORM,
 117         .dev                    = {
 118                 .platform_data  = jazz_serial_data,
 119         },
 120 };
 121
 122 static struct resource jazz_esp_rsrc[] = {
 123         {
 124                 .start = JAZZ_SCSI_BASE,
 125                 .end   = JAZZ_SCSI_BASE + 31,
 126                 .flags = IORESOURCE_MEM
 127         },
 128         {
 129                 .start = JAZZ_SCSI_DMA,
 130                 .end   = JAZZ_SCSI_DMA,
 131                 .flags = IORESOURCE_MEM
 132         },
 133         {
 134                 .start = JAZZ_SCSI_IRQ,
 135                 .end   = JAZZ_SCSI_IRQ,
 136                 .flags = IORESOURCE_IRQ
 137         }
 138 };
 139
 140 static u64 jazz_esp_dma_mask = DMA_BIT_MASK(32);
 141
 142 static struct platform_device jazz_esp_pdev = {
 143         .name           = "jazz_esp",
 144         .num_resources  = ARRAY_SIZE(jazz_esp_rsrc),
 145         .resource       = jazz_esp_rsrc,
 146         .dev = {
 147                 .dma_mask          = &jazz_esp_dma_mask,
 148                 .coherent_dma_mask = DMA_BIT_MASK(32),
 149         }
 150 };
 151
 152 static struct resource jazz_sonic_rsrc[] = {
 153         {
 154                 .start = JAZZ_ETHERNET_BASE,
 155                 .end   = JAZZ_ETHERNET_BASE + 0xff,
 156                 .flags = IORESOURCE_MEM
 157         },
 158         {
 159                 .start = JAZZ_ETHERNET_IRQ,
 160                 .end   = JAZZ_ETHERNET_IRQ,
 161                 .flags = IORESOURCE_IRQ
 162         }
 163 };
 164
 165 static u64 jazz_sonic_dma_mask = DMA_BIT_MASK(32);
 166
 167 static struct platform_device jazz_sonic_pdev = {
 168         .name           = "jazzsonic",
 169         .num_resources  = ARRAY_SIZE(jazz_sonic_rsrc),
 170         .resource       = jazz_sonic_rsrc,
 171         .dev = {
 172                 .dma_mask          = &jazz_sonic_dma_mask,
 173                 .coherent_dma_mask = DMA_BIT_MASK(32),
 174         }
 175 };
 176
 177 static struct resource jazz_cmos_rsrc[] = {
 178         {
 179                 .start = 0x70,
 180                 .end   = 0x71,
 181                 .flags = IORESOURCE_IO
 182         },
 183         {
 184                 .start = 8,
 185                 .end   = 8,
 186                 .flags = IORESOURCE_IRQ
 187         }
 188 };
 189
 190 static struct platform_device jazz_cmos_pdev = {
 191         .name           = "rtc_cmos",
 192         .num_resources  = ARRAY_SIZE(jazz_cmos_rsrc),
 193         .resource       = jazz_cmos_rsrc
 194 };
 195
 196 static struct platform_device pcspeaker_pdev = {
 197         .name           = "pcspkr",
 198         .id             = -1,
 199 };
 200
 201 static int __init jazz_setup_devinit(void)
 202 {
 203         platform_device_register(&jazz_serial8250_device);
 204         platform_device_register(&jazz_esp_pdev);
 205         platform_device_register(&jazz_sonic_pdev);
 206         platform_device_register(&jazz_cmos_pdev);
 207         platform_device_register(&pcspeaker_pdev);
 208
 209         return 0;
 210 }
 211
 212 device_initcall(jazz_setup_devinit);