kernel/arch/m32r/platforms/mappi2/setup.c

   1 /*
   2  *  linux/arch/m32r/platforms/mappi2/setup.c
   3  *
   4  *  Setup routines for Renesas MAPPI-II(M3A-ZA36) Board
   5  *
   6  *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
   7  *                           Hitoshi Yamamoto, Mamoru Sakugawa
   8  */
   9
  10 #include <linux/irq.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14
  15 #include <asm/m32r.h>
  16 #include <asm/io.h>
  17
  18 #define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
  19
  20 icu_data_t icu_data[NR_IRQS];
  21
  22 static void disable_mappi2_irq(unsigned int irq)
  23 {
  24         unsigned long port, data;
  25
  26         if ((irq == 0) ||(irq >= NR_IRQS))  {
  27                 printk("bad irq 0x%08x\n", irq);
  28                 return;
  29         }
  30         port = irq2port(irq);
  31         data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
  32         outl(data, port);
  33 }
  34
  35 static void enable_mappi2_irq(unsigned int irq)
  36 {
  37         unsigned long port, data;
  38
  39         if ((irq == 0) ||(irq >= NR_IRQS))  {
  40                 printk("bad irq 0x%08x\n", irq);
  41                 return;
  42         }
  43         port = irq2port(irq);
  44         data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
  45         outl(data, port);
  46 }
  47
  48 static void mask_mappi2(struct irq_data *data)
  49 {
  50         disable_mappi2_irq(data->irq);
  51 }
  52
  53 static void unmask_mappi2(struct irq_data *data)
  54 {
  55         enable_mappi2_irq(data->irq);
  56 }
  57
  58 static void shutdown_mappi2(struct irq_data *data)
  59 {
  60         unsigned long port;
  61
  62         port = irq2port(data->irq);
  63         outl(M32R_ICUCR_ILEVEL7, port);
  64 }
  65
  66 static struct irq_chip mappi2_irq_type =
  67 {
  68         .name           = "MAPPI2-IRQ",
  69         .irq_shutdown   = shutdown_mappi2,
  70         .irq_mask       = mask_mappi2,
  71         .irq_unmask     = unmask_mappi2,
  72 };
  73
  74 void __init init_IRQ(void)
  75 {
  76 #if defined(CONFIG_SMC91X)
  77         /* INT0 : LAN controller (SMC91111) */
  78         irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type,
  79                                  handle_level_irq);
  80         icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
  81         disable_mappi2_irq(M32R_IRQ_INT0);
  82 #endif  /* CONFIG_SMC91X */
  83
  84         /* MFT2 : system timer */
  85         irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type,
  86                                  handle_level_irq);
  87         icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
  88         disable_mappi2_irq(M32R_IRQ_MFT2);
  89
  90 #ifdef CONFIG_SERIAL_M32R_SIO
  91         /* SIO0_R : uart receive data */
  92         irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type,
  93                                  handle_level_irq);
  94         icu_data[M32R_IRQ_SIO0_R].icucr = 0;
  95         disable_mappi2_irq(M32R_IRQ_SIO0_R);
  96
  97         /* SIO0_S : uart send data */
  98         irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type,
  99                                  handle_level_irq);
 100         icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 101         disable_mappi2_irq(M32R_IRQ_SIO0_S);
 102         /* SIO1_R : uart receive data */
 103         irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type,
 104                                  handle_level_irq);
 105         icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 106         disable_mappi2_irq(M32R_IRQ_SIO1_R);
 107
 108         /* SIO1_S : uart send data */
 109         irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type,
 110                                  handle_level_irq);
 111         icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 112         disable_mappi2_irq(M32R_IRQ_SIO1_S);
 113 #endif  /* CONFIG_M32R_USE_DBG_CONSOLE */
 114
 115 #if defined(CONFIG_USB)
 116         /* INT1 : USB Host controller interrupt */
 117         irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type,
 118                                  handle_level_irq);
 119         icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
 120         disable_mappi2_irq(M32R_IRQ_INT1);
 121 #endif /* CONFIG_USB */
 122
 123         /* ICUCR40: CFC IREQ */
 124         irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type,
 125                                  handle_level_irq);
 126         icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 127         disable_mappi2_irq(PLD_IRQ_CFIREQ);
 128
 129 #if defined(CONFIG_M32R_CFC)
 130         /* ICUCR41: CFC Insert */
 131         irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type,
 132                                  handle_level_irq);
 133         icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
 134         disable_mappi2_irq(PLD_IRQ_CFC_INSERT);
 135
 136         /* ICUCR42: CFC Eject */
 137         irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type,
 138                                  handle_level_irq);
 139         icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 140         disable_mappi2_irq(PLD_IRQ_CFC_EJECT);
 141 #endif /* CONFIG_MAPPI2_CFC */
 142 }
 143
 144 #define LAN_IOSTART     0x300
 145 #define LAN_IOEND       0x320
 146 static struct resource smc91x_resources[] = {
 147         [0] = {
 148                 .start  = (LAN_IOSTART),
 149                 .end    = (LAN_IOEND),
 150                 .flags  = IORESOURCE_MEM,
 151         },
 152         [1] = {
 153                 .start  = M32R_IRQ_INT0,
 154                 .end    = M32R_IRQ_INT0,
 155                 .flags  = IORESOURCE_IRQ,
 156         }
 157 };
 158
 159 static struct platform_device smc91x_device = {
 160         .name           = "smc91x",
 161         .id             = 0,
 162         .num_resources  = ARRAY_SIZE(smc91x_resources),
 163         .resource       = smc91x_resources,
 164 };
 165
 166 static int __init platform_init(void)
 167 {
 168         platform_device_register(&smc91x_device);
 169         return 0;
 170 }
 171 arch_initcall(platform_init);