arch/m32r/platforms/mappi2/setup.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  *  linux/arch/m32r/platforms/mappi2/setup.c
   4  *
   5  *  Setup routines for Renesas MAPPI-II(M3A-ZA36) Board
   6  *
   7  *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
   8  *                           Hitoshi Yamamoto, Mamoru Sakugawa
   9  */
  10
  11 #include <linux/irq.h>
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15
  16 #include <asm/m32r.h>
  17 #include <asm/io.h>
  18
  19 #define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
  20
  21 icu_data_t icu_data[NR_IRQS];
  22
  23 static void disable_mappi2_irq(unsigned int irq)
  24 {
  25         unsigned long port, data;
  26
  27         if ((irq == 0) ||(irq >= NR_IRQS))  {
  28                 printk("bad irq 0x%08x\n", irq);
  29                 return;
  30         }
  31         port = irq2port(irq);
  32         data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
  33         outl(data, port);
  34 }
  35
  36 static void enable_mappi2_irq(unsigned int irq)
  37 {
  38         unsigned long port, data;
  39
  40         if ((irq == 0) ||(irq >= NR_IRQS))  {
  41                 printk("bad irq 0x%08x\n", irq);
  42                 return;
  43         }
  44         port = irq2port(irq);
  45         data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
  46         outl(data, port);
  47 }
  48
  49 static void mask_mappi2(struct irq_data *data)
  50 {
  51         disable_mappi2_irq(data->irq);
  52 }
  53
  54 static void unmask_mappi2(struct irq_data *data)
  55 {
  56         enable_mappi2_irq(data->irq);
  57 }
  58
  59 static void shutdown_mappi2(struct irq_data *data)
  60 {
  61         unsigned long port;
  62
  63         port = irq2port(data->irq);
  64         outl(M32R_ICUCR_ILEVEL7, port);
  65 }
  66
  67 static struct irq_chip mappi2_irq_type =
  68 {
  69         .name           = "MAPPI2-IRQ",
  70         .irq_shutdown   = shutdown_mappi2,
  71         .irq_mask       = mask_mappi2,
  72         .irq_unmask     = unmask_mappi2,
  73 };
  74
  75 void __init init_IRQ(void)
  76 {
  77 #if defined(CONFIG_SMC91X)
  78         /* INT0 : LAN controller (SMC91111) */
  79         irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type,
  80                                  handle_level_irq);
  81         icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
  82         disable_mappi2_irq(M32R_IRQ_INT0);
  83 #endif  /* CONFIG_SMC91X */
  84
  85         /* MFT2 : system timer */
  86         irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type,
  87                                  handle_level_irq);
  88         icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
  89         disable_mappi2_irq(M32R_IRQ_MFT2);
  90
  91 #ifdef CONFIG_SERIAL_M32R_SIO
  92         /* SIO0_R : uart receive data */
  93         irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type,
  94                                  handle_level_irq);
  95         icu_data[M32R_IRQ_SIO0_R].icucr = 0;
  96         disable_mappi2_irq(M32R_IRQ_SIO0_R);
  97
  98         /* SIO0_S : uart send data */
  99         irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type,
 100                                  handle_level_irq);
 101         icu_data[M32R_IRQ_SIO0_S].icucr = 0;
 102         disable_mappi2_irq(M32R_IRQ_SIO0_S);
 103         /* SIO1_R : uart receive data */
 104         irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type,
 105                                  handle_level_irq);
 106         icu_data[M32R_IRQ_SIO1_R].icucr = 0;
 107         disable_mappi2_irq(M32R_IRQ_SIO1_R);
 108
 109         /* SIO1_S : uart send data */
 110         irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type,
 111                                  handle_level_irq);
 112         icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 113         disable_mappi2_irq(M32R_IRQ_SIO1_S);
 114 #endif  /* CONFIG_M32R_USE_DBG_CONSOLE */
 115
 116 #if defined(CONFIG_USB)
 117         /* INT1 : USB Host controller interrupt */
 118         irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type,
 119                                  handle_level_irq);
 120         icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
 121         disable_mappi2_irq(M32R_IRQ_INT1);
 122 #endif /* CONFIG_USB */
 123
 124         /* ICUCR40: CFC IREQ */
 125         irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type,
 126                                  handle_level_irq);
 127         icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 128         disable_mappi2_irq(PLD_IRQ_CFIREQ);
 129
 130 #if defined(CONFIG_M32R_CFC)
 131         /* ICUCR41: CFC Insert */
 132         irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type,
 133                                  handle_level_irq);
 134         icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
 135         disable_mappi2_irq(PLD_IRQ_CFC_INSERT);
 136
 137         /* ICUCR42: CFC Eject */
 138         irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type,
 139                                  handle_level_irq);
 140         icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 141         disable_mappi2_irq(PLD_IRQ_CFC_EJECT);
 142 #endif /* CONFIG_MAPPI2_CFC */
 143 }
 144
 145 #define LAN_IOSTART     0x300
 146 #define LAN_IOEND       0x320
 147 static struct resource smc91x_resources[] = {
 148         [0] = {
 149                 .start  = (LAN_IOSTART),
 150                 .end    = (LAN_IOEND),
 151                 .flags  = IORESOURCE_MEM,
 152         },
 153         [1] = {
 154                 .start  = M32R_IRQ_INT0,
 155                 .end    = M32R_IRQ_INT0,
 156                 .flags  = IORESOURCE_IRQ,
 157         }
 158 };
 159
 160 static struct platform_device smc91x_device = {
 161         .name           = "smc91x",
 162         .id             = 0,
 163         .num_resources  = ARRAY_SIZE(smc91x_resources),
 164         .resource       = smc91x_resources,
 165 };
 166
 167 static int __init platform_init(void)
 168 {
 169         platform_device_register(&smc91x_device);
 170         return 0;
 171 }
 172 arch_initcall(platform_init);