ioport.c
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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mpc8xx.h>
#include <asm/8xx_immap.h>
#include "ioport.h"
#if 0
#define IOPORT_DEBUG
#endif
#ifdef IOPORT_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
/*
* The ioport configuration table.
*/
const mpc8xx_iop_conf_t iop_conf_tab[NUM_PORTS][PORT_BITS] = {
/*
* Port A configuration
* Pin Signal Type Active Initial state
* PA7 fpgaProgramLowOut Out Low High
* PA1 fpgaCoreVoltageFailLow In Low N/A
*/
{ /* conf ppar psor pdir podr pdat pint function */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* No pin */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* No pin */
/* PA15 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA14 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA13 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA12 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA11 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA10 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA9 */ { 1, 0, 0, 1, 0, 0, 0 }, /* grn bicolor LED 1*/
/* PA8 */ { 1, 0, 0, 1, 0, 0, 0 }, /* red bicolor LED 1*/
/* PA7 */ { 1, 0, 0, 1, 0, 1, 0 }, /* fpgaProgramLow */
/* PA6 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA5 */ { 1, 0, 0, 1, 0, 0, 0 }, /* grn bicolor LED 0*/
/* PA4 */ { 1, 0, 0, 1, 0, 0, 0 }, /* red bicolor LED 0*/
/* PA3 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PA2 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#if !defined(CONFIG_SC)
/* PA1 */ { 1, 0, 0, 0, 0, 0, 0 }, /* fpgaCoreVoltageFail*/
#else
/* PA1 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#endif
/* PA0 */ { 0, 0, 0, 0, 0, 0, 0 } /* */
},
/*
* Port B configuration
* Pin Signal Type Active Initial state
* PB14 docBusyLowIn In Low X
* PB15 gpio1Sig Out High Low
* PB16 fpgaDoneBi In High X
* PB17 swBitOkLowOut Out Low High
* PB19 speakerVolSig Out/Hi-Z High/Low High (Hi-Z)
* PB22 fpgaInitLowBi In Low X
* PB23 batteryOkSig In High X
* PB31 pulseCatcherClr Out High 0
*/
{ /* conf ppar psor pdir podr pdat pint function */
#if !defined(CONFIG_SC)
/* PB31 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#else
/* PB31 */ { 1, 0, 0, 1, 0, 0, 0 }, /* pulseCatcherClr */
#endif
/* PB30 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB29 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB28 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB27 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB26 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB25 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB24 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#if !defined(CONFIG_SC)
/* PB23 */ { 1, 0, 0, 0, 0, 0, 0 }, /* batteryOk */
#else
/* PB23 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#endif
/* PB22 */ { 1, 0, 0, 0, 0, 0, 0 }, /* fpgaInitLowBi */
/* PB21 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB20 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#if !defined(CONFIG_SC)
/* PB19 */ { 1, 0, 0, 1, 1, 1, 0 }, /* speakerVol */
#else
/* PB19 */ { 0, 0, 0, 1, 1, 1, 0 }, /* */
#endif
/* PB18 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PB17 */ { 1, 0, 0, 1, 0, 1, 0 }, /* swBitOkLow */
/* PB16 */ { 1, 0, 0, 0, 0, 0, 0 }, /* fpgaDone */
/* PB15 */ { 1, 0, 0, 1, 0, 0, 0 }, /* gpio1 */
#if !defined(CONFIG_SC)
/* PB14 */ { 1, 0, 0, 0, 0, 0, 0 } /* docBusyLow */
#else
/* PB14 */ { 0, 0, 0, 0, 0, 0, 0 } /* */
#endif
},
/*
* Port C configuration
* Pin Signal Type Active Initial state
* PC4 i2cBus1EnSig Out High High
* PC5 i2cBus2EnSig Out High High
* PC6 gpio0Sig Out High Low
* PC8 i2cBus3EnSig Out High High
* PC10 i2cBus4EnSig Out High High
* PC11 fpgaResetLowOut Out Low High
* PC12 systemBitOkIn In High X
* PC15 selfDreqLow In Low X
*/
{ /* conf ppar psor pdir podr pdat pint function */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PC15 */ { 1, 0, 0, 0, 0, 0, 0 }, /* selfDreqLowIn */
/* PC14 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PC13 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#if !defined(CONFIG_SC)
/* PC12 */ { 1, 0, 0, 0, 0, 0, 0 }, /* systemBitOkIn */
#else
/* PC12 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#endif
/* PC11 */ { 1, 0, 0, 1, 0, 1, 0 }, /* fpgaResetLowOut */
#if !defined(CONFIG_SC)
/* PC10 */ { 1, 0, 0, 1, 0, 1, 0 }, /* i2cBus4EnSig */
#else
/* PC10 */ { 0, 0, 0, 1, 0, 1, 0 }, /* */
#endif
/* PC9 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
#if !defined(CONFIG_SC)
/* PC8 */ { 1, 0, 0, 1, 0, 1, 0 }, /* i2cBus3EnSig */
#else
/* PC8 */ { 0, 0, 0, 1, 0, 1, 0 }, /* */
#endif
/* PC7 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PC6 */ { 1, 0, 0, 1, 0, 1, 0 }, /* gpio0 */
#if !defined(CONFIG_SC)
/* PC5 */ { 1, 0, 0, 1, 0, 1, 0 }, /* i2cBus2EnSig */
/* PC4 */ { 1, 0, 0, 1, 0, 1, 0 }, /* i2cBus1EnSig */
#else
/* PC5 */ { 0, 0, 0, 1, 0, 1, 0 }, /* */
/* PC4 */ { 0, 0, 0, 1, 0, 1, 0 }, /* */
#endif
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 } /* */
},
/*
* Port D configuration
*/
{ /* conf ppar psor pdir podr pdat pint function */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD15 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD14 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD13 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD12 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD11 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD10 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD9 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD8 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD7 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD6 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD5 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD4 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* PD3 */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 }, /* */
/* N/A */ { 0, 0, 0, 0, 0, 0, 0 } /* */
}
};
/*
* Configure the MPC8XX I/O ports per the ioport configuration table
* (taken from ./arch/powerpc/cpu/mpc8260/cpu_init.c)
*/
void config_mpc8xx_ioports (volatile immap_t * immr)
{
int portnum;
for (portnum = 0; portnum < NUM_PORTS; portnum++) {
uint pmsk = 0, ppar = 0, psor = 0, pdir = 0;
uint podr = 0, pdat = 0, pint = 0;
uint msk = 1;
mpc8xx_iop_conf_t *iopc =
(mpc8xx_iop_conf_t *) & iop_conf_tab[portnum][0];
mpc8xx_iop_conf_t *eiopc = iopc + PORT_BITS;
/*
* For all ports except port B, ignore the two don't care entries
* in the configuration tables.
*/
if (portnum != 1) {
iopc = (mpc8xx_iop_conf_t *) &
iop_conf_tab[portnum][2];
}
/*
* NOTE: index 0 refers to pin 17, index 17 refers to pin 0
*/
while (iopc < eiopc) {
if (iopc->conf) {
pmsk |= msk;
if (iopc->ppar)
ppar |= msk;
if (iopc->psor)
psor |= msk;
if (iopc->pdir)
pdir |= msk;
if (iopc->podr)
podr |= msk;
if (iopc->pdat)
pdat |= msk;
if (iopc->pint)
pint |= msk;
}
msk <<= 1;
iopc++;
}
PRINTF ("%s:%d:\n portnum=%d ", __FUNCTION__, __LINE__,
portnum);
#ifdef IOPORT_DEBUG
switch (portnum) {
case 0:
printf ("(A)\n");
break;
case 1:
printf ("(B)\n");
break;
case 2:
printf ("(C)\n");
break;
case 3:
printf ("(D)\n");
break;
default:
printf ("(?)\n");
break;
}
#endif
PRINTF (" ppar=0x%.8x pdir=0x%.8x podr=0x%.8x\n"
" pdat=0x%.8x psor=0x%.8x pint=0x%.8x pmsk=0x%.8x\n",
ppar, pdir, podr, pdat, psor, pint, pmsk);
/*
* Have to handle the ioports on a port-by-port basis since there
* are three different flavors.
*/
if (pmsk != 0) {
uint tpmsk = ~pmsk;
if (0 == portnum) { /* port A */
immr->im_ioport.iop_papar &= tpmsk;
immr->im_ioport.iop_padat =
(immr->im_ioport.
iop_padat & tpmsk) | pdat;
immr->im_ioport.iop_padir =
(immr->im_ioport.
iop_padir & tpmsk) | pdir;
immr->im_ioport.iop_paodr =
(immr->im_ioport.
iop_paodr & tpmsk) | podr;
immr->im_ioport.iop_papar |= ppar;
} else if (1 == portnum) { /* port B */
immr->im_cpm.cp_pbpar &= tpmsk;
immr->im_cpm.cp_pbdat =
(immr->im_cpm.
cp_pbdat & tpmsk) | pdat;
immr->im_cpm.cp_pbdir =
(immr->im_cpm.
cp_pbdir & tpmsk) | pdir;
immr->im_cpm.cp_pbodr =
(immr->im_cpm.
cp_pbodr & tpmsk) | podr;
immr->im_cpm.cp_pbpar |= ppar;
} else if (2 == portnum) { /* port C */
immr->im_ioport.iop_pcpar &= tpmsk;
immr->im_ioport.iop_pcdat =
(immr->im_ioport.
iop_pcdat & tpmsk) | pdat;
immr->im_ioport.iop_pcdir =
(immr->im_ioport.
iop_pcdir & tpmsk) | pdir;
immr->im_ioport.iop_pcint =
(immr->im_ioport.
iop_pcint & tpmsk) | pint;
immr->im_ioport.iop_pcso =
(immr->im_ioport.
iop_pcso & tpmsk) | psor;
immr->im_ioport.iop_pcpar |= ppar;
} else if (3 == portnum) { /* port D */
immr->im_ioport.iop_pdpar &= tpmsk;
immr->im_ioport.iop_pddat =
(immr->im_ioport.
iop_pddat & tpmsk) | pdat;
immr->im_ioport.iop_pddir =
(immr->im_ioport.
iop_pddir & tpmsk) | pdir;
immr->im_ioport.iop_pdpar |= ppar;
}
}
}
PRINTF ("%s:%d: Port A:\n papar=0x%.4x padir=0x%.4x"
" paodr=0x%.4x\n padat=0x%.4x\n", __FUNCTION__, __LINE__,
immr->im_ioport.iop_papar, immr->im_ioport.iop_padir,
immr->im_ioport.iop_paodr, immr->im_ioport.iop_padat);
PRINTF ("%s:%d: Port B:\n pbpar=0x%.8x pbdir=0x%.8x"
" pbodr=0x%.8x\n pbdat=0x%.8x\n", __FUNCTION__, __LINE__,
immr->im_cpm.cp_pbpar, immr->im_cpm.cp_pbdir,
immr->im_cpm.cp_pbodr, immr->im_cpm.cp_pbdat);
PRINTF ("%s:%d: Port C:\n pcpar=0x%.4x pcdir=0x%.4x"
" pcdat=0x%.4x\n pcso=0x%.4x pcint=0x%.4x\n ",
__FUNCTION__, __LINE__, immr->im_ioport.iop_pcpar,
immr->im_ioport.iop_pcdir, immr->im_ioport.iop_pcdat,
immr->im_ioport.iop_pcso, immr->im_ioport.iop_pcint);
PRINTF ("%s:%d: Port D:\n pdpar=0x%.4x pddir=0x%.4x"
" pddat=0x%.4x\n", __FUNCTION__, __LINE__,
immr->im_ioport.iop_pdpar, immr->im_ioport.iop_pddir,
immr->im_ioport.iop_pddat);
}