/* 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 the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <bsp/motorola.h>
#include <rtems/bspIo.h>
#include <libcpu/io.h>
#include <string.h>
#include <libcpu/cpuIdent.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,{}}
#ifdef qemu
static struct _int_map qemu_prep_intmap[] = {
{ 0, -1, 0, { { 1, { 9, -1, -1, -1}},
{ 2, {11, -1 -1, -1}},
NULL_PINMAP }},
NULL_INTMAP
};
#endif
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 mvme23xx_intmap[] = {
/* Raven Hostbridge; has int_pin == 0
{0, 0, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
*/
/* Winbond PCI/ISA 83c553; has int_pin == 0
{0, 11, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
*/
#if 0 /* Leave as ISA interrupts for now */
{0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {11,21,-1,-1,-1}}, /* Universe ISA/PCI */
/* strictly speaking, a non-multi function device
* must only use pin A
*/
{2, {22,-1,-1,-1,-1}}, /* Universe */
{3, {23,-1,-1,-1,-1}}, /* Universe */
{4, {24,-1,-1,-1,-1}}, /* Universe */
NULL_PINMAP}},
{0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */
NULL_PINMAP}},
#endif
{0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{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, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */
{2, {25,-1,-1,-1}},
{3, {26,-1,-1,-1}},
{4, {27,-1,-1,-1}},
NULL_PINMAP}},
NULL_INTMAP };
static struct _int_map mvme24xx_intmap[] = {
/* Raven Hostbridge; has int_pin == 0
{0, 0, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
*/
/* Winbond PCI/ISA 83c553; has int_pin == 0
{0, 11, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
*/
{0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {11,21,-1,-1}}, /* Universe ISA/PCI */
/* strictly speaking, a non-multi function device
* must only use pin A
*/
{2, {22,-1,-1,-1}}, /* Universe */
{3, {23,-1,-1,-1}}, /* Universe */
{4, {24,-1,-1,-1}}, /* Universe */
NULL_PINMAP}},
{0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */
NULL_PINMAP}},
{0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{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, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */
{2, {25,-1,-1,-1}},
{3, {26,-1,-1,-1}},
{4, {27,-1,-1,-1}},
NULL_PINMAP}},
NULL_INTMAP };
static struct _int_map mvme27xx_intmap[] = {
/* Raven Hostbridge; has int_pin == 0 */
{0, 0, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
/* Winbond PCI/ISA 83c553; has int_pin == 0 */
{0, 11, 0, {{0, {-1,-1,-1,-1}},
NULL_PINMAP}},
{0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {11,21,-1,-1}}, /* Universe ISA/PCI */
/* strictly speaking, a non-multi function device
* must only use pin A
*/
{2, {22,-1,-1,-1}}, /* Universe */
{3, {23,-1,-1,-1}}, /* Universe */
{4, {24,-1,-1,-1}}, /* Universe */
NULL_PINMAP}},
{0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */
NULL_PINMAP}},
{0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{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, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */
{2, {25,-1,-1,-1}},
{3, {26,-1,-1,-1}},
{4, {27,-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,-1,-1,-1}}, /* Universe Lint[0-3]; not quite legal */
{2, {24,-1,-1,-1}}, /* since the universe is a single-function */
{3, {25,-1,-1,-1}}, /* device. We leave it for info purposes */
{4, {26,-1,-1,-1}},
NULL_PINMAP}},
{0, 14, 0, {{1, {17,-1,-1,-1}}, /* onboard ethernet */
NULL_PINMAP}},
{0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {18,-1,-1,-1}}, /* PMC slot; all pins are routed to 18 */
{2, {18,-1,-1,-1}}, /* I give the OVERRIDE option since I had */
{3, {18,-1,-1,-1}}, /* problems with devices behind a bridge */
{4, {18,-1,-1,-1}}, /* on a PMC card reading irq line 0... */
NULL_PINMAP}},
/* FIXME: I don't know how MIP works or what it is; these probably won't work */
{0, -1, PCI_FIXUP_OPT_OVERRIDE_NAME,
{{1, {23,-1,-1,-1}}, /* PCI INT[A-D] expansion */
{2, {24,-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;
ppc_cpu_id_t proc_type;
const char *name;
struct _int_map *intmap;
int (*swizzler)(int, int);
} mot_info_t;
/* NOTE: When adding boards here the 'motorolaBoard' enums MUST be
* updated accordingly!
*/
static const mot_info_t mot_boards[] = {
{0x0E0, 0xF9, PPC_604, "MVME 2400", mvme24xx_intmap,prep_pci_swizzle},
{0x3E0, 0x00, PPC_750, "MVME 2400 (PPC 750)", mvme24xx_intmap,prep_pci_swizzle},
{0x010, 0x00, PPC_UNKNOWN, "Genesis", NULL, NULL},
{0x020, 0x00, PPC_UNKNOWN, "Powerstack (Series E)", NULL, NULL},
{0x040, 0x00, PPC_UNKNOWN, "Blackhawk (Powerstack)", NULL, NULL},
{0x050, 0x00, PPC_UNKNOWN, "Omaha (PowerStack II Pro3000)", NULL, NULL},
{0x060, 0x00, PPC_UNKNOWN, "Utah (Powerstack II Pro4000)", NULL, NULL},
{0x0A0, 0x00, PPC_UNKNOWN, "Powerstack (Series EX)", NULL, NULL},
#ifdef qemu
{0x1E0, 0xE0, PPC_UNKNOWN, "QEMU", qemu_prep_intmap, prep_pci_swizzle},
#else
{0x1E0, 0xE0, PPC_UNKNOWN, "Mesquite cPCI (MCP750)", mcp750_intmap, prep_pci_swizzle},
#endif
{0x1E0, 0xE1, PPC_UNKNOWN, "Sitka cPCI (MCPN750)", mcp750_intmap, prep_pci_swizzle},
{0x1E0, 0xE2, PPC_UNKNOWN, "Mesquite cPCI (MCP750) w/ HAC", mcp750_intmap, prep_pci_swizzle},
{0x1E0, 0xF6, PPC_UNKNOWN, "MTX Plus", NULL, NULL},
{0x1E0, 0xF7, PPC_UNKNOWN, "MTX w/o Parallel Port", mtx603_intmap, prep_pci_swizzle},
{0x1E0, 0xF8, PPC_UNKNOWN, "MTX w/ Parallel Port", mtx603_intmap, prep_pci_swizzle},
{0x1E0, 0xF9, PPC_604, "MVME 2300", mvme23xx_intmap, prep_pci_swizzle},
{0x1E0, 0xFA, PPC_UNKNOWN, "MVME 2300SC/2600", mvme23xx_intmap, prep_pci_swizzle},
{0x1E0, 0xFB, PPC_UNKNOWN, "MVME 2600 with MVME712M", NULL, NULL},
{0x1E0, 0xFC, PPC_750, "MVME 2600/2700 with MVME761", mvme27xx_intmap, prep_pci_swizzle},
{0x1E0, 0xFD, PPC_UNKNOWN, "MVME 3600 with MVME712M", NULL, NULL},
{0x1E0, 0xFE, PPC_UNKNOWN, "MVME 3600 with MVME761", NULL, NULL},
{0x1E0, 0xFF, PPC_UNKNOWN, "MVME 1600-001 or 1600-011", NULL, NULL},
{0x000, 0x00, PPC_UNKNOWN, ""}, /* end of probeable values for automatic scan */
{0x000, 0x00, PPC_UNKNOWN, "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((char*)res->VitalProductData.PrintableModel,"IBM",3) )
PREP_type = PREP_IBM;
else if (!strncmp((char*)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(void)
{
/*
* 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;
ppc_cpu_id_t proc_type;
int entry;
int mot_entry = -1;
cpu_type = inb(MOTOROLA_CPUTYPE_REG) & 0xF0;
base_mod = inb(MOTOROLA_BASETYPE_REG);
proc_type = get_ppc_cpu_type ();
for (entry = 0; mot_boards[entry].cpu_type != 0; entry++) {
if ((mot_boards[entry].cpu_type & 0xff) != cpu_type)
continue;
if ((mot_boards[entry].proc_type != PPC_UNKNOWN) &&
(mot_boards[entry].proc_type != proc_type))
/*
* IMD: processor type does not match
* (here we distinguish a MVME2300 and a MVME2400)
*/
continue;
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;
}