arch/arm/mach-sa1100/pfs168.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/pfs168.c
   3  */
   4 #include <linux/init.h>
   5 #include <linux/kernel.h>
   6 #include <linux/tty.h>
   7 #include <linux/errno.h>
   8 #include <linux/ioport.h>
   9 #include <linux/device.h>
  10
  11 #include <asm/hardware.h>
  12 #include <asm/mach-types.h>
  13 #include <asm/setup.h>
  14
  15 #include <asm/mach/arch.h>
  16 #include <asm/mach/map.h>
  17 #include <asm/mach/serial_sa1100.h>
  18
  19 #include "generic.h"
  20
  21 static struct resource sa1111_resources[] = {
  22         [0] = {
  23                 .start          = 0x40000000,
  24                 .end            = 0x40001fff,
  25                 .flags          = IORESOURCE_MEM,
  26         },
  27         [1] = {
  28                 .start          = IRQ_GPIO25,
  29                 .end            = IRQ_GPIO25,
  30                 .flags          = IORESOURCE_IRQ,
  31         },
  32 };
  33
  34 static u64 sa1111_dmamask = 0xffffffffUL;
  35
  36 static struct platform_device sa1111_device = {
  37         .name           = "sa1111",
  38         .id             = 0,
  39         .dev            = {
  40                 .dma_mask = &sa1111_dmamask,
  41                 .coherent_dma_mask = 0xffffffff,
  42         },
  43         .num_resources  = ARRAY_SIZE(sa1111_resources),
  44         .resource       = sa1111_resources,
  45 };
  46
  47 static struct platform_device *devices[] __initdata = {
  48         &sa1111_device,
  49 };
  50
  51 static int __init pfs168_init(void)
  52 {
  53         int ret;
  54
  55         if (!machine_is_pfs168())
  56                 return -ENODEV;
  57
  58         /*
  59          * Ensure that the memory bus request/grant signals are setup,
  60          * and the grant is held in its inactive state
  61          */
  62         sa1110_mb_disable();
  63
  64         return platform_add_devices(devices, ARRAY_SIZE(devices));
  65 }
  66
  67 arch_initcall(pfs168_init);
  68
  69
  70 static void __init pfs168_init_irq(void)
  71 {
  72         sa1100_init_irq();
  73
  74         /*
  75          * Need to register these as rising edge interrupts
  76          * for standard 16550 serial driver support.
  77          */
  78         set_GPIO_IRQ_edge(GPIO_GPIO(19), GPIO_RISING_EDGE);
  79         set_GPIO_IRQ_edge(GPIO_GPIO(20), GPIO_RISING_EDGE);
  80         set_GPIO_IRQ_edge(GPIO_GPIO(25), GPIO_RISING_EDGE);
  81         set_GPIO_IRQ_edge(GPIO_UCB1300_IRQ, GPIO_RISING_EDGE);
  82 }
  83
  84 static struct map_desc pfs168_io_desc[] __initdata = {
  85  /* virtual     physical    length      type */
  86   { 0xf0000000, 0x10000000, 0x00001000, MT_DEVICE }, /* 16C752 DUART port A (COM5) */
  87   { 0xf0001000, 0x10800000, 0x00001000, MT_DEVICE }, /* 16C752 DUART port B (COM6) */
  88   { 0xf0002000, 0x11000000, 0x00001000, MT_DEVICE }, /* COM1 RTS control (SYSC1RTS) */
  89   { 0xf0003000, 0x11400000, 0x00001000, MT_DEVICE }, /* Status LED control (SYSLED) */
  90   { 0xf0004000, 0x11800000, 0x00001000, MT_DEVICE }, /* DTMF code read (SYSDTMF) */
  91   { 0xf0005000, 0x11c00000, 0x00001000, MT_DEVICE }, /* LCD configure, enable (SYSLCDDE) */
  92   { 0xf0006000, 0x12000000, 0x00001000, MT_DEVICE }, /* COM1 DSR and motion sense (SYSC1DSR) */
  93   { 0xf0007000, 0x12800000, 0x00001000, MT_DEVICE }, /* COM3 xmit enable (SYSC3TEN) */
  94   { 0xf0008000, 0x13000000, 0x00001000, MT_DEVICE }, /* Control register A (SYSCTLA) */
  95   { 0xf0009000, 0x13800000, 0x00001000, MT_DEVICE }, /* Control register B (SYSCTLB) */
  96   { 0xf000a000, 0x18000000, 0x00001000, MT_DEVICE }, /* SMC91C96 */
  97   { 0xf2800000, 0x4b800000, 0x00800000, MT_DEVICE }, /* MQ200 */
  98   { 0xf4000000, 0x40000000, 0x00100000, MT_DEVICE }  /* SA-1111 */
  99 };
 100
 101 static void __init pfs168_map_io(void)
 102 {
 103         sa1100_map_io();
 104         iotable_init(pfs168_io_desc, ARRAY_SIZE(pfs168_io_desc));
 105
 106         sa1100_register_uart(0, 3);
 107         sa1100_register_uart(1, 1);
 108 }
 109
 110 MACHINE_START(PFS168, "Tulsa")
 111         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
 112         BOOT_PARAMS(0xc0000100)
 113         MAPIO(pfs168_map_io)
 114         INITIRQ(pfs168_init_irq)
 115         INITTIME(sa1100_init_time)
 116 MACHINE_END