/* 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.
*
* $Id$
*/
#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 };
/*
* 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, ""}
};
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()
{
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;
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;
return mot_boards[board].intmap;
}
const void *motorolaIntSwizzle(motorolaBoard board)
{
if (board == MOTOROLA_UNKNOWN) return NULL;
return (void *)mot_boards[board].swizzler;
}
