arch/sh64/mach-sim/setup.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * arch/sh64/mach-sim/setup.c
   7  *
   8  * ST50 Simulator Platform Support
   9  *
  10  * This file handles the architecture-dependent parts of initialization
  11  *
  12  * Copyright (C) 2000, 2001  Paolo Alberelli
  13  *
  14  * lethal@linux-sh.org:          15th May 2003
  15  *    Use the generic procfs cpuinfo interface, just return a valid board name.
  16  */
  17 #include <linux/init.h>
  18 #include <linux/kernel.h>
  19 #include <asm/platform.h>
  20 #include <asm/irq.h>
  21
  22 /*
  23  * Platform Dependent Interrupt Priorities.
  24  */
  25
  26 /* Using defaults defined in irq.h */
  27 #define RES NO_PRIORITY         /* Disabled */
  28 #define IR0 IRL0_PRIORITY       /* IRLs */
  29 #define IR1 IRL1_PRIORITY
  30 #define IR2 IRL2_PRIORITY
  31 #define IR3 IRL3_PRIORITY
  32 #define PCA INTA_PRIORITY       /* PCI Ints */
  33 #define PCB INTB_PRIORITY
  34 #define PCC INTC_PRIORITY
  35 #define PCD INTD_PRIORITY
  36 #define SER TOP_PRIORITY
  37 #define ERR TOP_PRIORITY
  38 #define PW0 TOP_PRIORITY
  39 #define PW1 TOP_PRIORITY
  40 #define PW2 TOP_PRIORITY
  41 #define PW3 TOP_PRIORITY
  42 #define DM0 NO_PRIORITY         /* DMA Ints */
  43 #define DM1 NO_PRIORITY
  44 #define DM2 NO_PRIORITY
  45 #define DM3 NO_PRIORITY
  46 #define DAE NO_PRIORITY
  47 #define TU0 TIMER_PRIORITY      /* TMU Ints */
  48 #define TU1 NO_PRIORITY
  49 #define TU2 NO_PRIORITY
  50 #define TI2 NO_PRIORITY
  51 #define ATI NO_PRIORITY         /* RTC Ints */
  52 #define PRI NO_PRIORITY
  53 #define CUI RTC_PRIORITY
  54 #define ERI SCIF_PRIORITY       /* SCIF Ints */
  55 #define RXI SCIF_PRIORITY
  56 #define BRI SCIF_PRIORITY
  57 #define TXI SCIF_PRIORITY
  58 #define ITI TOP_PRIORITY        /* WDT Ints */
  59
  60 /*
  61  * Platform dependent structures: maps and parms block.
  62  */
  63 struct resource io_resources[] = {
  64         /* Nothing yet .. */
  65 };
  66
  67 struct resource kram_resources[] = {
  68         /* These must be last in the array */
  69         { .name = "Kernel code", .start = 0, .end = 0 },
  70         /* These must be last in the array */
  71         { .name = "Kernel data", .start = 0, .end = 0 }
  72 };
  73
  74 struct resource xram_resources[] = {
  75         /* Nothing yet .. */
  76 };
  77
  78 struct resource rom_resources[] = {
  79         /* Nothing yet .. */
  80 };
  81
  82 struct sh64_platform platform_parms = {
  83         .readonly_rootfs =      1,
  84         .initial_root_dev =     0x0100,
  85         .loader_type =          1,
  86         .io_res_p =             io_resources,
  87         .io_res_count =         ARRAY_SIZE(io_resources),
  88         .kram_res_p =           kram_resources,
  89         .kram_res_count =       ARRAY_SIZE(kram_resources),
  90         .xram_res_p =           xram_resources,
  91         .xram_res_count =       ARRAY_SIZE(xram_resources),
  92         .rom_res_p =            rom_resources,
  93         .rom_res_count =        ARRAY_SIZE(rom_resources),
  94 };
  95
  96 int platform_int_priority[NR_IRQS] = {
  97         IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ  0- 7 */
  98         RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ  8-15 */
  99         PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
 100         RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
 101         TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
 102         RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
 103         RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
 104         RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
 105 };
 106
 107 void __init platform_setup(void)
 108 {
 109         /* Simulator platform leaves the decision to head.S */
 110         platform_parms.fpu_flags = fpu_in_use;
 111 }
 112
 113 void __init platform_monitor(void)
 114 {
 115         /* Nothing yet .. */
 116 }
 117
 118 void __init platform_reserve(void)
 119 {
 120         /* Nothing yet .. */
 121 }
 122
 123 const char *get_system_type(void)
 124 {
 125         return "SH-5 Simulator";
 126 }