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add additional address decoding to mpc5200 bus driver

Browse Source 
(Jeff Wittrock)


git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1449 b68d4a1b-bc3d-0410-92ed-d4ac073336b7
master
Arnim Läuger 16 years ago
parent 449922ada3
commit 9eb5661641
2 changed files with 51 additions and 26 deletions
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7
jtag/ChangeLog
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@ -1,6 +1,11 @@
2009-03-04 Arnim Laeuger <arniml@users.sourceforge.net>
* src/bus/mpc5200.c: add additional address decoding to mpc5200 bus driver
(Jeff Wittrock)
2009-03-02 Arnim Laeuger <arniml@users.sourceforge.net>
* data/freescale/PARTS: add stepping for MPC5200B (Jeff Wittroc)
* data/freescale/PARTS: add stepping for MPC5200B (Jeff Wittrock)
2009-03-01 Arnim Laeuger <arniml@users.sourceforge.net>

70
jtag/src/bus/mpc5200.c
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@ -40,13 +40,21 @@
#include "buses.h"
#include "generic_bus.h"
#define LPC_NUM_CS 6
#define LPC_NUM_AD 24
#define LPC_NUM_D 8
#define LPC_ADDR_TO_CS(a) (a >> LPC_NUM_AD)
#define LPC_ADDR_SIZE ( ( 0x00000001 << LPC_NUM_AD ) * LPC_NUM_CS )
typedef struct {
uint32_t last_adr;
signal_t *ad[24];
signal_t *ncs[4];
signal_t *ad[LPC_NUM_AD];
signal_t *ncs[LPC_NUM_CS];
signal_t *nwe;
signal_t *noe;
signal_t *d[8];
signal_t *d[LPC_NUM_D];
signal_t *ata_iso;
} bus_params_t;
#define LAST_ADR ((bus_params_t *) bus->params)->last_adr
@ -55,6 +63,7 @@ typedef struct {
#define nWE ((bus_params_t *) bus->params)->nwe
#define nOE ((bus_params_t *) bus->params)->noe
#define D ((bus_params_t *) bus->params)->d
#define ATA_ISO ((bus_params_t *) bus->params)->ata_iso
/**
* bus->driver->(*new_bus)
@ -84,12 +93,12 @@ mpc5200_bus_new( chain_t *chain, const bus_driver_t *driver, char *cmd_params[]
PART = part = chain->parts->parts[chain->active_part];
/* Get the signals */
for (i = 0; i < 24; i++) {
for (i = 0; i < LPC_NUM_AD; i++) {
sprintf( buff, "EXT_AD_%d", i );
failed |= generic_bus_attach_sig( part, &(AD[i]), buff );
}
for (i = 0; i < 4; i++) {
for (i = 0; i < LPC_NUM_CS; i++) {
sprintf( buff, "LP_CS%d_B", i );
failed |= generic_bus_attach_sig( part, &(nCS[i]), buff );
}
@ -98,11 +107,13 @@ mpc5200_bus_new( chain_t *chain, const bus_driver_t *driver, char *cmd_params[]
failed |= generic_bus_attach_sig( part, &(nOE), "LP_OE" );
for (i = 0; i < 8; i++) {
sprintf( buff, "EXT_AD_%d", i+24 );
for (i = 0; i < LPC_NUM_D; i++) {
sprintf( buff, "EXT_AD_%d", i+LPC_NUM_AD );
failed |= generic_bus_attach_sig( part, &(D[i]), buff );
}
failed |= generic_bus_attach_sig( part, &(ATA_ISO), "ATA_ISOLATION" );
if (failed) {
free( bus->params );
free( bus );
@ -134,18 +145,18 @@ mpc5200_bus_printinfo( bus_t *bus )
static int
mpc5200_bus_area( bus_t *bus, uint32_t adr, bus_area_t *area )
{
if( adr < UINT32_C(0x01000000) )
if( adr < LPC_ADDR_SIZE )
{
area->description = N_("LocalPlus Bus");
area->start = UINT32_C(0x00000000);
area->length = UINT64_C(0x01000000);
area->width = 8;
area->length = LPC_ADDR_SIZE;
area->width = LPC_NUM_D;
return URJTAG_STATUS_OK;
}
area->description = NULL;
area->start = 0x01000000;
area->length = 0xFF000000;
area->start = LPC_ADDR_SIZE;
area->length = UINT64_C(0x100000000) - LPC_ADDR_SIZE;
area->width = 0;
return URJTAG_STATUS_OK;
}
@ -156,7 +167,7 @@ setup_address( bus_t *bus, uint32_t a )
int i;
part_t *p = PART;
for (i = 0; i < 24; i++)
for (i = 0; i < LPC_NUM_AD; i++)
part_set_signal( p, AD[i], 1, (a >> i) & 1 );
}
@ -168,7 +179,7 @@ set_data_in( bus_t *bus, uint32_t adr )
bus_area_t area;
mpc5200_bus_area( bus, adr, &area );
if (area.width > 8)
if (area.width > LPC_NUM_D)
return;
for (i = 0; i < area.width; i++)
@ -183,7 +194,7 @@ setup_data( bus_t *bus, uint32_t adr, uint32_t d )
bus_area_t area;
mpc5200_bus_area( bus, adr, &area );
if (area.width > 8)
if (area.width > LPC_NUM_D)
return;
for (i = 0; i < area.width; i++)
@ -199,7 +210,7 @@ get_data( bus_t *bus, uint32_t adr )
part_t *p = PART;
mpc5200_bus_area( bus, adr, &area );
if (area.width > 8)
if (area.width > LPC_NUM_D)
return 0;
for (i = 0; i < area.width; i++)
@ -216,14 +227,18 @@ static void
mpc5200_bus_read_start( bus_t *bus, uint32_t adr )
{
part_t *p = PART;
int i;
uint8_t cs = LPC_ADDR_TO_CS(adr);
LAST_ADR = adr;
/* see Figure 6-45 in [1] */
part_set_signal( p, nCS[0], 1, 0 );
part_set_signal( p, nCS[1], 1, 1 );
part_set_signal( p, nCS[2], 1, 1 );
part_set_signal( p, nCS[3], 1, 1 );
for (i = 0; i < LPC_NUM_CS; i++) {
part_set_signal( p, nCS[i], 1, !(cs==i) );
}
part_set_signal( p, ATA_ISO,1, 1 );
part_set_signal( p, nWE, 1, 1 );
part_set_signal( p, nOE, 1, 0 );
@ -258,8 +273,11 @@ static uint32_t
mpc5200_bus_read_end( bus_t *bus )
{
part_t *p = PART;
int i;
part_set_signal( p, nCS[0], 1, 1 );
for (i = 0; i < LPC_NUM_CS; i++) {
part_set_signal( p, nCS[i], 1, 1 );
}
part_set_signal( p, nOE, 1, 1 );
chain_shift_data_registers( CHAIN, 1 );
@ -277,11 +295,13 @@ mpc5200_bus_write( bus_t *bus, uint32_t adr, uint32_t data )
/* see Figure 6-47 in [1] */
part_t *p = PART;
chain_t *chain = CHAIN;
uint8_t cs = LPC_ADDR_TO_CS(adr);
int i;
part_set_signal( p, nCS[0], 1, 0 );
part_set_signal( p, nCS[1], 1, 1 );
part_set_signal( p, nCS[2], 1, 1 );
part_set_signal( p, nCS[3], 1, 1 );
for (i = 0; i < LPC_NUM_CS; i++) {
part_set_signal( p, nCS[i], 1, !(cs==i) );
}
part_set_signal( p, ATA_ISO,1, 1 );
part_set_signal( p, nWE, 1, 1 );
part_set_signal( p, nOE, 1, 1 );

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