arch/sh/kernel/cpu/sh4/setup-sh4-202.c

   1 /*
   2  * SH4-202 Setup
   3  *
   4  *  Copyright (C) 2006  Paul Mundt
   5  *  Copyright (C) 2009  Magnus Damm
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  */
  11 #include <linux/platform_device.h>
  12 #include <linux/init.h>
  13 #include <linux/serial.h>
  14 #include <linux/serial_sci.h>
  15 #include <linux/sh_timer.h>
  16 #include <linux/sh_intc.h>
  17 #include <linux/io.h>
  18
  19 static struct plat_sci_port scif0_platform_data = {
  20         .flags          = UPF_BOOT_AUTOCONF,
  21         .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
  22         .type           = PORT_SCIF,
  23 };
  24
  25 static struct resource scif0_resources[] = {
  26         DEFINE_RES_MEM(0xffe80000, 0x100),
  27         DEFINE_RES_IRQ(evt2irq(0x700)),
  28         DEFINE_RES_IRQ(evt2irq(0x720)),
  29         DEFINE_RES_IRQ(evt2irq(0x760)),
  30         DEFINE_RES_IRQ(evt2irq(0x740)),
  31 };
  32
  33 static struct platform_device scif0_device = {
  34         .name           = "sh-sci",
  35         .id             = 0,
  36         .resource       = scif0_resources,
  37         .num_resources  = ARRAY_SIZE(scif0_resources),
  38         .dev            = {
  39                 .platform_data  = &scif0_platform_data,
  40         },
  41 };
  42
  43 static struct sh_timer_config tmu0_platform_data = {
  44         .channels_mask = 7,
  45 };
  46
  47 static struct resource tmu0_resources[] = {
  48         DEFINE_RES_MEM(0xffd80000, 0x30),
  49         DEFINE_RES_IRQ(evt2irq(0x400)),
  50         DEFINE_RES_IRQ(evt2irq(0x420)),
  51         DEFINE_RES_IRQ(evt2irq(0x440)),
  52 };
  53
  54 static struct platform_device tmu0_device = {
  55         .name           = "sh-tmu",
  56         .id             = 0,
  57         .dev = {
  58                 .platform_data  = &tmu0_platform_data,
  59         },
  60         .resource       = tmu0_resources,
  61         .num_resources  = ARRAY_SIZE(tmu0_resources),
  62 };
  63
  64 static struct platform_device *sh4202_devices[] __initdata = {
  65         &scif0_device,
  66         &tmu0_device,
  67 };
  68
  69 static int __init sh4202_devices_setup(void)
  70 {
  71         return platform_add_devices(sh4202_devices,
  72                                     ARRAY_SIZE(sh4202_devices));
  73 }
  74 arch_initcall(sh4202_devices_setup);
  75
  76 static struct platform_device *sh4202_early_devices[] __initdata = {
  77         &scif0_device,
  78         &tmu0_device,
  79 };
  80
  81 void __init plat_early_device_setup(void)
  82 {
  83         early_platform_add_devices(sh4202_early_devices,
  84                                    ARRAY_SIZE(sh4202_early_devices));
  85 }
  86
  87 enum {
  88         UNUSED = 0,
  89
  90         /* interrupt sources */
  91         IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
  92         HUDI, TMU0, TMU1, TMU2, RTC, SCIF, WDT,
  93 };
  94
  95 static struct intc_vect vectors[] __initdata = {
  96         INTC_VECT(HUDI, 0x600),
  97         INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
  98         INTC_VECT(TMU2, 0x440), INTC_VECT(TMU2, 0x460),
  99         INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
 100         INTC_VECT(RTC, 0x4c0),
 101         INTC_VECT(SCIF, 0x700), INTC_VECT(SCIF, 0x720),
 102         INTC_VECT(SCIF, 0x740), INTC_VECT(SCIF, 0x760),
 103         INTC_VECT(WDT, 0x560),
 104 };
 105
 106 static struct intc_prio_reg prio_registers[] __initdata = {
 107         { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 108         { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, 0, 0, 0 } },
 109         { 0xffd0000c, 0, 16, 4, /* IPRC */ { 0, 0, SCIF, HUDI } },
 110         { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
 111 };
 112
 113 static DECLARE_INTC_DESC(intc_desc, "sh4-202", vectors, NULL,
 114                          NULL, prio_registers, NULL);
 115
 116 static struct intc_vect vectors_irlm[] __initdata = {
 117         INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
 118         INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
 119 };
 120
 121 static DECLARE_INTC_DESC(intc_desc_irlm, "sh4-202_irlm", vectors_irlm, NULL,
 122                          NULL, prio_registers, NULL);
 123
 124 void __init plat_irq_setup(void)
 125 {
 126         register_intc_controller(&intc_desc);
 127 }
 128
 129 #define INTC_ICR        0xffd00000UL
 130 #define INTC_ICR_IRLM   (1<<7)
 131
 132 void __init plat_irq_setup_pins(int mode)
 133 {
 134         switch (mode) {
 135         case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
 136                 __raw_writew(__raw_readw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
 137                 register_intc_controller(&intc_desc_irlm);
 138                 break;
 139         default:
 140                 BUG();
 141         }
 142 }