kernel/linux/arch/arm/mach-sa1100/cerf.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/cerf.c
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * Apr-2003 : Removed some old PDA crud [FB]
   9  * Oct-2003 : Added uart2 resource [FB]
  10  * Jan-2004 : Removed io map for flash [FB]
  11  */
  12
  13 #include <linux/config.h>
  14 #include <linux/init.h>
  15 #include <linux/kernel.h>
  16 #include <linux/tty.h>
  17 #include <linux/device.h>
  18
  19 #include <asm/irq.h>
  20 #include <asm/hardware.h>
  21 #include <asm/setup.h>
  22
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/mach/serial_sa1100.h>
  27
  28 #include <asm/arch/cerf.h>
  29 #include "generic.h"
  30
  31 static struct resource cerfuart2_resources[] = {
  32         [0] = {
  33                 .start  = 0x80030000,
  34                 .end    = 0x8003ffff,
  35                 .flags  = IORESOURCE_MEM,
  36         },
  37 };
  38
  39 static struct platform_device cerfuart2_device = {
  40         .name           = "sa11x0-uart",
  41         .id             = 2,
  42         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  43         .resource       = cerfuart2_resources,
  44 };
  45
  46 static struct platform_device *cerf_devices[] __initdata = {
  47         &cerfuart2_device,
  48 };
  49
  50 static void __init cerf_init_irq(void)
  51 {
  52         sa1100_init_irq();
  53         set_irq_type(CERF_ETH_IRQ, IRQT_RISING);
  54 }
  55
  56 static struct map_desc cerf_io_desc[] __initdata = {
  57   /* virtual     physical    length      type */
  58   { 0xf0000000, 0x08000000, 0x00100000, MT_DEVICE }  /* Crystal Ethernet Chip */
  59 };
  60
  61 static void __init cerf_map_io(void)
  62 {
  63         sa1100_map_io();
  64         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
  65
  66         sa1100_register_uart(0, 3);
  67         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
  68         sa1100_register_uart(2, 1);
  69
  70         /* set some GPDR bits here while it's safe */
  71         GPDR |= CERF_GPIO_CF_RESET;
  72 }
  73
  74 static int __init cerf_init(void)
  75 {
  76         int ret;
  77
  78         if (!machine_is_cerf())
  79                 return -ENODEV;
  80
  81         ret = platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
  82         if (ret < 0)
  83                 return ret;
  84
  85         return 0;
  86 }
  87
  88 arch_initcall(cerf_init);
  89
  90 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
  91         MAINTAINER("support@intrinsyc.com")
  92         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
  93         MAPIO(cerf_map_io)
  94         INITIRQ(cerf_init_irq)
  95         INITTIME(sa1100_init_time)
  96 MACHINE_END