/* motorola.h * *  This include file describe the data structure and the functions implemented *  by rtems to identify motorola boards. * *  CopyRight (C) 1999 valette@crf.canon.fr * *  The license and distribution terms for this file may be *  found in found in the file LICENSE in this distribution or at *  http://www.rtems.com/license/LICENSE. * *  $Id: motorola.c,v 1.4.2.3 2004/11/10 22:15:01 joel Exp $ */#include <bsp.h>#include <bsp/motorola.h>#include <rtems/bspIo.h>#include <libcpu/io.h>#include <string.h>/*** Board-specific table that maps interrupt names to onboard PCI** peripherals as well as local PCI busses.  This table is used at** bspstart() to configure the interrupt name & pin for all devices that** do not have it already specified.  If the device is already** configured, we leave it alone but sanity check & print a warning if** we don't know about the pin/line the card gives us.**** bus = the bus number of the slot/device in question**** slot :****   If slot != -1, it indicates a device on the given bus in that slot**   is to use one of the listed interrupt names given an interrupt pin.****   If slot == -1, it means devices on this bus can occupy any slot-**   and for pci, this means the particular interrupt pin that the**   device signals is therefore dependent on the particular slot.  To**   work from the slot to the interrupt pin, the swizzle table is used.**   Once the bus and interrupt pin is known, the correct interrupt name**   can be pulled from the table.  The swizzle table relates the**   interrupt pin from the device to the particular interrupt**   controller interrupt pin- so it is quite reasonable for a device on**   bus 1 signalling interrupt pin 1 to show up at the interrupt**   controller as pin 4- this is why the int pin field varies for**   bridged pci busses.****** opts = bitmap of options that control the configuration of this** slot/bus.**** pin_routes[] = array of pin & vectors that may serve this slot;****      pin = the pin # which delivers an interrupt on this route, A=1,**      B=2, C=3, D=4****      int_name[4] = an array of up to 4 bsp-specific interrupt name**      that can be used by this route.  Unused entries should be -1.**      The array is of primary use for slots that can be vectored thru**      multiple interrupt lines over the interrupt pin supplied by the**      record.  If more than one entry is present, the most preferable**      should supplied first.** */#define NULL_PINMAP     {-1,{-1,-1,-1,-1}}#define NULL_INTMAP     {-1,-1,-1,{}}static struct _int_map mcp750_intmap[] = {    { 0, 16, 0, {{1,  {5, 19,-1,-1}}, /* pmc slot */                NULL_PINMAP}},   { 0, 14, 0, {{1,  {10,18,-1,-1}}, /* onboard ethernet */                NULL_PINMAP}},   { 1, -1, 0, {{1,  {24,-1,-1,-1}},                {2,  {25,-1,-1,-1}},                {3,  {26,-1,-1,-1}},                {4,  {27,-1,-1,-1}},                NULL_PINMAP}},   NULL_INTMAP };static struct _int_map mtx603_intmap[] = {   {0, 14, 0, {{1, {10,16,-1,-1}},  /* onboard ethernet */               NULL_PINMAP}},   {0, 12, 0, {{1, {14,18,-1,-1}},  /* onboard scsi */               NULL_PINMAP}},   {0, 16, 0, {{1, {25,-1,-1,-1}},  /* pci/pmc slot 1 */               {2, {26,-1,-1,-1}},               {3, {27,-1,-1,-1}},               {4, {28,-1,-1,-1}},               NULL_PINMAP}},   {0, 17, 0, {{1, {26,-1,-1,-1}},  /* pci/pmc slot 2 */               {2, {27,-1,-1,-1}},               {3, {28,-1,-1,-1}},               {4, {25,-1,-1,-1}},               NULL_PINMAP}},   {0, 18, 0, {{1, {27,-1,-1,-1}},  /* pci slot 3 */               {2, {28,-1,-1,-1}},               {3, {25,-1,-1,-1}},               {4, {26,-1,-1,-1}},               NULL_PINMAP}},   NULL_INTMAP };static struct _int_map mvme2100_intmap[] = {   {0, 0, 0, {{1, {16,-1,-1,-1}}, /* something shows up in slot 0 and OpenPIC */                                  /* 0 is unused.  This hushes the init code. */               NULL_PINMAP}},   {0, 13, 0, {{1, {23,24,25,26}},  /* PCI INT[A-D]/Universe Lint[0-3] */               NULL_PINMAP}},   {0, 14, 0, {{1, {17,-1,-1,-1}},  /* onboard ethernet */               NULL_PINMAP}},   NULL_INTMAP };/* * This table represents the standard PCI swizzle defined in the * PCI bus specification.  Table taken from Linux 2.4.18, prep_pci.c, * the values in this table are interrupt_pin values (1 based). */static unsigned char prep_pci_intpins[4][4] ={	{ 1, 2, 3, 4 },  /* Buses 0, 4, 8, ... */	{ 2, 3, 4, 1 },  /* Buses 1, 5, 9, ... */	{ 3, 4, 1, 2 },  /* Buses 2, 6, 10 ... */	{ 4, 1, 2, 3 },  /* Buses 3, 7, 11 ... */};static int prep_pci_swizzle(int slot, int pin){   return prep_pci_intpins[ slot % 4 ][ pin-1 ];}typedef struct {  /*   * 0x100 mask assumes for Raven and Hawk boards   * that the level/edge are set.   * 0x200 if this board has a Hawk chip.   */      int		cpu_type;      int		base_type;      const char	*name;      struct _int_map   *intmap;      int               (*swizzler)(int, int);} mot_info_t;static const mot_info_t mot_boards[] = {  {0x300, 0x00, "MVME 2400", NULL, NULL},  {0x010, 0x00, "Genesis", NULL, NULL},  {0x020, 0x00, "Powerstack (Series E)", NULL, NULL},  {0x040, 0x00, "Blackhawk (Powerstack)", NULL, NULL},  {0x050, 0x00, "Omaha (PowerStack II Pro3000)", NULL, NULL},  {0x060, 0x00, "Utah (Powerstack II Pro4000)", NULL, NULL},  {0x0A0, 0x00, "Powerstack (Series EX)", NULL, NULL},  {0x1E0, 0xE0, "Mesquite cPCI (MCP750)", mcp750_intmap, prep_pci_swizzle},  {0x1E0, 0xE1, "Sitka cPCI (MCPN750)", mcp750_intmap, prep_pci_swizzle},  {0x1E0, 0xE2, "Mesquite cPCI (MCP750) w/ HAC", mcp750_intmap, prep_pci_swizzle},  {0x1E0, 0xF6, "MTX Plus", NULL, NULL},  {0x1E0, 0xF7, "MTX w/o Parallel Port", mtx603_intmap, prep_pci_swizzle},  {0x1E0, 0xF8, "MTX w/ Parallel Port", mtx603_intmap, prep_pci_swizzle},  {0x1E0, 0xF9, "MVME 2300", NULL, NULL},  {0x1E0, 0xFA, "MVME 2300SC/2600", NULL, NULL},  {0x1E0, 0xFB, "MVME 2600 with MVME712M", NULL, NULL},  {0x1E0, 0xFC, "MVME 2600/2700 with MVME761", NULL, NULL},  {0x1E0, 0xFD, "MVME 3600 with MVME712M", NULL, NULL},  {0x1E0, 0xFE, "MVME 3600 with MVME761", NULL, NULL},  {0x1E0, 0xFF, "MVME 1600-001 or 1600-011", NULL, NULL},  {0x000, 0x00, ""},   /* end of probeable values for automatic scan */  {0x000, 0x00, "MVME 2100", mvme2100_intmap, prep_pci_swizzle},};prep_t currentPrepType;motorolaBoard currentBoard;prep_t checkPrepBoardType(RESIDUAL *res){  prep_t PREP_type;  /* figure out what kind of prep workstation we are */  if ( res->ResidualLength != 0 ) {    if ( !strncmp(res->VitalProductData.PrintableModel,"IBM",3) )      PREP_type = PREP_IBM;    else if (!strncmp(res->VitalProductData.PrintableModel,		      "Radstone",8)){      PREP_type = PREP_Radstone;    }    else      PREP_type = PREP_Motorola;  }  else /* assume motorola if no residual (netboot?) */ {    PREP_type = PREP_Motorola;  }  currentPrepType = PREP_type;  return PREP_type;}motorolaBoard getMotorolaBoard(){/* *  At least the MVME2100 does not have the CPU Type and Base Type Registers, *  so it cannot be probed. * *  NOTE: Every path must set currentBoard. */#if defined(mvme2100)  currentBoard = (motorolaBoard) MVME_2100;#else  unsigned char  cpu_type;  unsigned char  base_mod;  int	       	 entry;  int	       	 mot_entry = -1;    cpu_type = inb(MOTOROLA_CPUTYPE_REG) & 0xF0;  base_mod = inb(MOTOROLA_BASETYPE_REG);  for (entry = 0; mot_boards[entry].cpu_type != 0; entry++) {    if ((mot_boards[entry].cpu_type & 0xff) != cpu_type)      continue;          if (mot_boards[entry].base_type == 0) {      mot_entry = entry;      break;    }          if (mot_boards[entry].base_type != base_mod)      continue;    else {      mot_entry = entry;      break;    }  }  if (mot_entry == -1) {    printk("Unknown motorola board Please update libbsp/powerpc/shared/motorola/motorola.c\n");    printk("cpu_type = %x\n", (unsigned) cpu_type);    printk("base_mod = %x\n", (unsigned) base_mod);    currentBoard = MOTOROLA_UNKNOWN;    return currentBoard;  }  currentBoard = (motorolaBoard) mot_entry;#endif  return currentBoard;}const char* motorolaBoardToString(motorolaBoard board){  if (board == MOTOROLA_UNKNOWN) return "Unknown motorola board";  return (mot_boards[board].name);}const struct _int_map *motorolaIntMap(motorolaBoard board){  if (board == MOTOROLA_UNKNOWN) return NULL;  /* printk( "IntMap board %d 0x%08x\n", board, mot_boards[board].intmap ); */  return mot_boards[board].intmap;}const void *motorolaIntSwizzle(motorolaBoard board){  if (board == MOTOROLA_UNKNOWN) return NULL;  return (void *)mot_boards[board].swizzler;}