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29 KiB

/*
* (C) Copyright 2005
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* STK52XX specific functions
*/
/*#define DEBUG*/
#include <common.h>
#include <command.h>
#include <console.h>
#if defined(CONFIG_CMD_BSP)
#if defined(CONFIG_STK52XX) || defined(CONFIG_FO300)
#define DEFAULT_VOL 45
#define DEFAULT_FREQ 500
#define DEFAULT_DURATION 200
#define LEFT 1
#define RIGHT 2
#define LEFT_RIGHT 3
#define BL_OFF 0
#define BL_ON 1
#define SM501_GPIO_CTRL_LOW 0x00000008UL
#define SM501_GPIO_CTRL_HIGH 0x0000000CUL
#define SM501_POWER_MODE0_GATE 0x00000040UL
#define SM501_POWER_MODE1_GATE 0x00000048UL
#define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
#define SM501_GPIO_DATA_LOW 0x00010000UL
#define SM501_GPIO_DATA_HIGH 0x00010004UL
#define SM501_GPIO_DATA_DIR_LOW 0x00010008UL
#define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
#define SM501_PANEL_DISPLAY_CONTROL 0x00080000UL
static int i2s_squarewave(unsigned long duration, unsigned int freq,
unsigned int channel);
static int i2s_sawtooth(unsigned long duration, unsigned int freq,
unsigned int channel);
static void spi_init(void);
static int spi_transmit(unsigned char data);
static void pcm1772_write_reg(unsigned char addr, unsigned char data);
static void set_attenuation(unsigned char attenuation);
static void spi_init(void)
{
struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
/* PSC3 as SPI and GPIOs */
gpio->port_config &= 0xFFFFF0FF;
gpio->port_config |= 0x00000800;
/*
* Its important to use the correct order when initializing the
* registers
*/
spi->ddr = 0x0F; /* set all SPI pins as output */
spi->pdr = 0x08; /* set SS high */
spi->cr1 = 0x50; /* SPI is master, SS is general purpose output */
spi->cr2 = 0x00; /* normal operation */
spi->brr = 0xFF; /* baud rate: IPB clock / 2048 */
}
static int spi_transmit(unsigned char data)
{
struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
spi->dr = data;
/* wait for SPI transmission completed */
while (!(spi->sr & 0x80)) {
if (spi->sr & 0x40) { /* if write collision occured */
int dummy;
/* do dummy read to clear status register */
dummy = spi->dr;
printf("SPI write collision: dr=0x%x\n", dummy);
return -1;
}
}
return (spi->dr);
}
static void pcm1772_write_reg(unsigned char addr, unsigned char data)
{
struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
spi->pdr = 0x00; /* Set SS low */
spi_transmit(addr);
spi_transmit(data);
/* wait some time to meet MS# hold time of PCM1772 */
udelay (1);
spi->pdr = 0x08; /* set SS high */
}
static void set_attenuation(unsigned char attenuation)
{
pcm1772_write_reg(0x01, attenuation); /* left channel */
debug ("PCM1772 attenuation left set to %d.\n", attenuation);
pcm1772_write_reg(0x02, attenuation); /* right channel */
debug ("PCM1772 attenuation right set to %d.\n", attenuation);
}
void amplifier_init(void)
{
static int init_done = 0;
int i;
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
/* Do this only once, because of the long time delay */
if (!init_done) {
/* configure PCM1772 audio format as I2S */
pcm1772_write_reg(0x03, 0x01);
/* enable audio amplifier */
gpio->sint_gpioe |= 0x02; /* PSC3_5 as GPIO */
gpio->sint_ode &= ~0x02; /* PSC3_5 is not open Drain */
gpio->sint_dvo &= ~0x02; /* PSC3_5 is LOW */
gpio->sint_ddr |= 0x02; /* PSC3_5 as output */
/*
* wait some time to allow amplifier to recover from shutdown
* mode.
*/
for(i = 0; i < 350; i++)
udelay(1000);
/*
* The used amplifier (LM4867) has a so called "pop and click"
* elmination filter. The input signal of the amplifier must
* exceed a certain level once after power up to activate the
* generation of the output signal. This is achieved by
* sending a low frequent (nearly inaudible) sawtooth with a
* sufficient signal level.
*/
set_attenuation(50);
i2s_sawtooth (200, 5, LEFT_RIGHT);
init_done = 1;
}
}
static void i2s_init(void)
{
unsigned long i;
struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;;
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
gpio->port_config |= 0x00000070; /* PSC2 ports as Codec with MCLK */
psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
psc->sicr = 0x22E00000; /* 16 bit data; I2S */
*(vu_long *)(CONFIG_SYS_MBAR + 0x22C) = 0x805d; /* PSC2 CDM MCLK config; MCLK
* 5.617 MHz */
*(vu_long *)(CONFIG_SYS_MBAR + 0x214) |= 0x00000040; /* CDM clock enable
* register */
psc->ccr = 0x1F03; /* 16 bit data width; 5.617MHz MCLK */
psc->ctur = 0x0F; /* 16 bit frame width */
for (i = 0; i < 128; i++)
psc->psc_buffer_32 = 0; /* clear tx fifo */
}
static int i2s_play_wave(unsigned long addr, unsigned long len)
{
unsigned long i;
unsigned char *wave_file = (uchar *)addr + 44; /* quick'n dirty: skip
* wav header*/
struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
/*
* play wave file in memory; bytes/words are be swapped
*/
psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
for(i = 0;i < (len / 4); i++) {
unsigned char swapped[4];
unsigned long *p = (unsigned long*)swapped;
swapped[3] = *wave_file++;
swapped[2] = *wave_file++;
swapped[1] = *wave_file++;
swapped[0] = *wave_file++;
psc->psc_buffer_32 = *p;
while (psc->tfnum > 400) {
if(ctrlc())
return 0;
}
}
while (psc->tfnum > 0); /* wait for fifo empty */
udelay (100);
psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
return 0;
}
static int i2s_sawtooth(unsigned long duration, unsigned int freq,
unsigned int channel)
{
long i,j;
unsigned long data;
struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
/*
* Generate sawtooth. Start with middle level up to highest level. Then
* go to lowest level and back to middle level.
*/
for(j = 0; j < ((duration * freq) / 1000); j++) {
for(i = 0; i <= 0x7FFF; i += (0x7FFF/(44100/(freq*4)))) {
data = (i & 0xFFFF);
/* data format: right data left data) */
if (channel == LEFT_RIGHT)
data |= (data<<16);
if (channel == RIGHT)
data = (data<<16);
psc->psc_buffer_32 = data;
while (psc->tfnum > 400);
}
for(i = 0x7FFF; i >= -0x7FFF; i -= (0xFFFF/(44100/(freq*2)))) {
data = (i & 0xFFFF);
/* data format: right data left data) */
if (channel == LEFT_RIGHT)
data |= (data<<16);
if (channel == RIGHT)
data = (data<<16);
psc->psc_buffer_32 = data;
while (psc->tfnum > 400);
}
for(i = -0x7FFF; i <= 0; i += (0x7FFF/(44100/(freq*4)))) {
data = (i & 0xFFFF);
/* data format: right data left data) */
if (channel == LEFT_RIGHT)
data |= (data<<16);
if (channel == RIGHT)
data = (data<<16);
psc->psc_buffer_32 = data;
while (psc->tfnum > 400);
}
}
while (psc->tfnum > 0); /* wait for fifo empty */
udelay (100);
psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
return 0;
}
static int i2s_squarewave(unsigned long duration, unsigned int freq,
unsigned int channel)
{
long i,j;
unsigned long data;
struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
/*
* Generate sqarewave. Start with high level, duty cycle 1:1.
*/
for(j = 0; j < ((duration * freq) / 1000); j++) {
for(i = 0; i < (44100/(freq*2)); i ++) {
data = 0x7FFF;
/* data format: right data left data) */
if (channel == LEFT_RIGHT)
data |= (data<<16);
if (channel == RIGHT)
data = (data<<16);
psc->psc_buffer_32 = data;
while (psc->tfnum > 400);
}
for(i = 0; i < (44100/(freq*2)); i ++) {
data = 0x8000;
/* data format: right data left data) */
if (channel == LEFT_RIGHT)
data |= (data<<16);
if (channel == RIGHT)
data = (data<<16);
psc->psc_buffer_32 = data;
while (psc->tfnum > 400);
}
}
while (psc->tfnum > 0); /* wait for fifo empty */
udelay (100);
psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
return 0;
}
static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long reg, val, duration;
char *tmp;
unsigned int freq, channel;
unsigned char volume;
int rcode = 1;
#ifdef CONFIG_STK52XX_REV100
printf ("Revision 100 of STK52XX not supported!\n");
return 1;
#endif
spi_init();
i2s_init();
amplifier_init();
if ((tmp = getenv ("volume")) != NULL) {
volume = simple_strtoul (tmp, NULL, 10);
} else {
volume = DEFAULT_VOL;
}
set_attenuation(volume);
switch (argc) {
case 0:
case 1:
return cmd_usage(cmdtp);
case 2:
if (strncmp(argv[1],"saw",3) == 0) {
printf ("Play sawtooth\n");
rcode = i2s_sawtooth (DEFAULT_DURATION, DEFAULT_FREQ,
LEFT_RIGHT);
return rcode;
} else if (strncmp(argv[1],"squ",3) == 0) {
printf ("Play squarewave\n");
rcode = i2s_squarewave (DEFAULT_DURATION, DEFAULT_FREQ,
LEFT_RIGHT);
return rcode;
}
return cmd_usage(cmdtp);
case 3:
if (strncmp(argv[1],"saw",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
printf ("Play sawtooth\n");
rcode = i2s_sawtooth (duration, DEFAULT_FREQ,
LEFT_RIGHT);
return rcode;
} else if (strncmp(argv[1],"squ",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
printf ("Play squarewave\n");
rcode = i2s_squarewave (duration, DEFAULT_FREQ,
LEFT_RIGHT);
return rcode;
}
return cmd_usage(cmdtp);
case 4:
if (strncmp(argv[1],"saw",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
printf ("Play sawtooth\n");
rcode = i2s_sawtooth (duration, freq,
LEFT_RIGHT);
return rcode;
} else if (strncmp(argv[1],"squ",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
printf ("Play squarewave\n");
rcode = i2s_squarewave (duration, freq,
LEFT_RIGHT);
return rcode;
} else if (strcmp(argv[1],"pcm1772") == 0) {
reg = simple_strtoul(argv[2], NULL, 10);
val = simple_strtoul(argv[3], NULL, 10);
printf("Set PCM1772 %lu. %lu\n", reg, val);
pcm1772_write_reg((uchar)reg, (uchar)val);
return 0;
}
return cmd_usage(cmdtp);
case 5:
if (strncmp(argv[1],"saw",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
if (strncmp(argv[4],"l",1) == 0)
channel = LEFT;
else if (strncmp(argv[4],"r",1) == 0)
channel = RIGHT;
else
channel = LEFT_RIGHT;
printf ("Play squarewave\n");
rcode = i2s_sawtooth (duration, freq,
channel);
return rcode;
} else if (strncmp(argv[1],"squ",3) == 0) {
duration = simple_strtoul(argv[2], NULL, 10);
freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
if (strncmp(argv[4],"l",1) == 0)
channel = LEFT;
else if (strncmp(argv[4],"r",1) == 0)
channel = RIGHT;
else
channel = LEFT_RIGHT;
printf ("Play squarewave\n");
rcode = i2s_squarewave (duration, freq,
channel);
return rcode;
}
return cmd_usage(cmdtp);
}
printf ("Usage:\nsound cmd [arg1] [arg2] ...\n");
return 1;
}
static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long length, addr;
unsigned char volume;
int rcode = 1;
char *tmp;
#ifdef CONFIG_STK52XX_REV100
printf ("Revision 100 of STK52XX not supported!\n");
return 1;
#endif
spi_init();
i2s_init();
amplifier_init();
switch (argc) {
case 3:
length = simple_strtoul(argv[2], NULL, 16);
addr = simple_strtoul(argv[1], NULL, 16);
break;
case 2:
if ((tmp = getenv ("filesize")) != NULL) {
length = simple_strtoul (tmp, NULL, 16);
} else {
puts ("No filesize provided\n");
return 1;
}
addr = simple_strtoul(argv[1], NULL, 16);
case 1:
if ((tmp = getenv ("filesize")) != NULL) {
length = simple_strtoul (tmp, NULL, 16);
} else {
puts ("No filesize provided\n");
return 1;
}
if ((tmp = getenv ("loadaddr")) != NULL) {
addr = simple_strtoul (tmp, NULL, 16);
} else {
puts ("No loadaddr provided\n");
return 1;
}
break;
default:
printf("Usage:\nwav <addr> <length[s]\n");
return 1;
break;
}
if ((tmp = getenv ("volume")) != NULL) {
volume = simple_strtoul (tmp, NULL, 10);
} else {
volume = DEFAULT_VOL;
}
set_attenuation(volume);
printf("Play wave file at %lX with length %lX\n", addr, length);
rcode = i2s_play_wave(addr, length);
return rcode;
}
static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned char volume;
unsigned int channel;
int rcode;
char *tmp;
#ifdef CONFIG_STK52XX_REV100
printf ("Revision 100 of STK52XX not supported!\n");
return 1;
#endif
spi_init();
i2s_init();
amplifier_init();
switch (argc) {
case 0:
case 1:
channel = LEFT_RIGHT;
break;
case 2:
if (strncmp(argv[1],"l",1) == 0)
channel = LEFT;
else if (strncmp(argv[1],"r",1) == 0)
channel = RIGHT;
else
channel = LEFT_RIGHT;
break;
default:
return cmd_usage(cmdtp);
}
if ((tmp = getenv ("volume")) != NULL) {
volume = simple_strtoul (tmp, NULL, 10);
} else {
volume = DEFAULT_VOL;
}
set_attenuation(volume);
printf("Beep on ");
if (channel == LEFT)
printf ("left ");
else if (channel == RIGHT)
printf ("right ");
else
printf ("left and right ");
printf ("channel\n");
rcode = i2s_squarewave (DEFAULT_DURATION, DEFAULT_FREQ, channel);
return rcode;
}
#endif
#if defined(CONFIG_STK52XX)
void led_init(void)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
/* configure PSC3 for SPI and GPIO */
gpio->port_config &= ~(0x00000F00);
gpio->port_config |= 0x00000800;
gpio->simple_gpioe &= ~(0x00000F00);
gpio->simple_gpioe |= 0x00000F00;
gpio->simple_ddr &= ~(0x00000F00);
gpio->simple_ddr |= 0x00000F00;
/* configure timer 4-7 for simple GPIO output */
gpt->gpt4.emsr |= 0x00000024;
gpt->gpt5.emsr |= 0x00000024;
gpt->gpt6.emsr |= 0x00000024;
gpt->gpt7.emsr |= 0x00000024;
#ifndef CONFIG_TQM5200S
/* enable SM501 GPIO control (in both power modes) */
*(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE0_GATE) |=
POWER_MODE_GATE_GPIO_PWM_I2C;
*(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE1_GATE) |=
POWER_MODE_GATE_GPIO_PWM_I2C;
/* configure SM501 gpio pins 24-27 as output */
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_CTRL_LOW) &= ~(0xF << 24);
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_LOW) |= (0xF << 24);
/* configure SM501 gpio pins 48-51 as output */
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_HIGH) |= (0xF << 16);
#endif /* !CONFIG_TQM5200S */
}
/*
* return 1 if led number unknown
* return 0 else
*/
int do_led(char * const argv[])
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
switch (simple_strtoul(argv[2], NULL, 10)) {
case 0:
if (strcmp (argv[3], "on") == 0) {
gpio->simple_dvo |= (1 << 8);
} else {
gpio->simple_dvo &= ~(1 << 8);
}
break;
case 1:
if (strcmp (argv[3], "on") == 0) {
gpio->simple_dvo |= (1 << 9);
} else {
gpio->simple_dvo &= ~(1 << 9);
}
break;
case 2:
if (strcmp (argv[3], "on") == 0) {
gpio->simple_dvo |= (1 << 10);
} else {
gpio->simple_dvo &= ~(1 << 10);
}
break;
case 3:
if (strcmp (argv[3], "on") == 0) {
gpio->simple_dvo |= (1 << 11);
} else {
gpio->simple_dvo &= ~(1 << 11);
}
break;
case 4:
if (strcmp (argv[3], "on") == 0) {
gpt->gpt4.emsr |= (1 << 4);
} else {
gpt->gpt4.emsr &= ~(1 << 4);
}
break;
case 5:
if (strcmp (argv[3], "on") == 0) {
gpt->gpt5.emsr |= (1 << 4);
} else {
gpt->gpt5.emsr &= ~(1 << 4);
}
break;
case 6:
if (strcmp (argv[3], "on") == 0) {
gpt->gpt6.emsr |= (1 << 4);
} else {
gpt->gpt6.emsr &= ~(1 << 4);
}
break;
case 7:
if (strcmp (argv[3], "on") == 0) {
gpt->gpt7.emsr |= (1 << 4);
} else {
gpt->gpt7.emsr &= ~(1 << 4);
}
break;
#ifndef CONFIG_TQM5200S
case 24:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
(0x1 << 24);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
~(0x1 << 24);
}
break;
case 25:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
(0x1 << 25);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
~(0x1 << 25);
}
break;
case 26:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
(0x1 << 26);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
~(0x1 << 26);
}
break;
case 27:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
(0x1 << 27);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
~(0x1 << 27);
}
break;
case 48:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
(0x1 << 16);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
~(0x1 << 16);
}
break;
case 49:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
(0x1 << 17);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
~(0x1 << 17);
}
break;
case 50:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
(0x1 << 18);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
~(0x1 << 18);
}
break;
case 51:
if (strcmp (argv[3], "on") == 0) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
(0x1 << 19);
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
~(0x1 << 19);
}
break;
#endif /* !CONFIG_TQM5200S */
default:
printf ("%s: invalid led number %s\n", __FUNCTION__, argv[2]);
return 1;
}
return 0;
}
#endif
#if defined(CONFIG_STK52XX) || defined(CONFIG_FO300)
/*
* return 1 on CAN initialization failure
* return 0 if no failure
*/
int can_init(void)
{
static int init_done = 0;
int i;
struct mpc5xxx_mscan *can1 =
(struct mpc5xxx_mscan *)(CONFIG_SYS_MBAR + 0x0900);
struct mpc5xxx_mscan *can2 =
(struct mpc5xxx_mscan *)(CONFIG_SYS_MBAR + 0x0980);
/* GPIO configuration of the CAN pins is done in TQM5200.h */
if (!init_done) {
/* init CAN 1 */
can1->canctl1 |= 0x80; /* CAN enable */
udelay(100);
i = 0;
can1->canctl0 |= 0x02; /* sleep mode */
/* wait until sleep mode reached */
while (!(can1->canctl1 & 0x02)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not enter sleep mode!\n",
__FUNCTION__);
return 1;
}
}
i = 0;
can1->canctl0 = 0x01; /* enter init mode */
/* wait until init mode reached */
while (!(can1->canctl1 & 0x01)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not enter init mode!\n",
__FUNCTION__);
return 1;
}
}
can1->canctl1 = 0x80;
can1->canctl1 |= 0x40;
can1->canbtr0 = 0x0F;
can1->canbtr1 = 0x7F;
can1->canidac &= ~(0x30);
can1->canidar1 = 0x00;
can1->canidar3 = 0x00;
can1->canidar5 = 0x00;
can1->canidar7 = 0x00;
can1->canidmr0 = 0xFF;
can1->canidmr1 = 0xFF;
can1->canidmr2 = 0xFF;
can1->canidmr3 = 0xFF;
can1->canidmr4 = 0xFF;
can1->canidmr5 = 0xFF;
can1->canidmr6 = 0xFF;
can1->canidmr7 = 0xFF;
i = 0;
can1->canctl0 &= ~(0x01); /* leave init mode */
can1->canctl0 &= ~(0x02);
/* wait until init and sleep mode left */
while ((can1->canctl1 & 0x01) || (can1->canctl1 & 0x02)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not leave init/sleep mode!\n",
__FUNCTION__);
return 1;
}
}
/* init CAN 2 */
can2->canctl1 |= 0x80; /* CAN enable */
udelay(100);
i = 0;
can2->canctl0 |= 0x02; /* sleep mode */
/* wait until sleep mode reached */
while (!(can2->canctl1 & 0x02)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not enter sleep mode!\n",
__FUNCTION__);
return 1;
}
}
i = 0;
can2->canctl0 = 0x01; /* enter init mode */
/* wait until init mode reached */
while (!(can2->canctl1 & 0x01)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not enter init mode!\n",
__FUNCTION__);
return 1;
}
}
can2->canctl1 = 0x80;
can2->canctl1 |= 0x40;
can2->canbtr0 = 0x0F;
can2->canbtr1 = 0x7F;
can2->canidac &= ~(0x30);
can2->canidar1 = 0x00;
can2->canidar3 = 0x00;
can2->canidar5 = 0x00;
can2->canidar7 = 0x00;
can2->canidmr0 = 0xFF;
can2->canidmr1 = 0xFF;
can2->canidmr2 = 0xFF;
can2->canidmr3 = 0xFF;
can2->canidmr4 = 0xFF;
can2->canidmr5 = 0xFF;
can2->canidmr6 = 0xFF;
can2->canidmr7 = 0xFF;
can2->canctl0 &= ~(0x01); /* leave init mode */
can2->canctl0 &= ~(0x02);
i = 0;
/* wait until init mode left */
while ((can2->canctl1 & 0x01) || (can2->canctl1 & 0x02)) {
udelay(10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not leave init/sleep mode!\n",
__FUNCTION__);
return 1;
}
}
init_done = 1;
}
return 0;
}
/*
* return 1 on CAN failure
* return 0 if no failure
*/
int do_can(char * const argv[])
{
int i;
struct mpc5xxx_mscan *can1 =
(struct mpc5xxx_mscan *)(CONFIG_SYS_MBAR + 0x0900);
struct mpc5xxx_mscan *can2 =
(struct mpc5xxx_mscan *)(CONFIG_SYS_MBAR + 0x0980);
/* send a message on CAN1 */
can1->cantbsel = 0x01;
can1->cantxfg.idr[0] = 0x55;
can1->cantxfg.idr[1] = 0x00;
can1->cantxfg.idr[1] &= ~0x8;
can1->cantxfg.idr[1] &= ~0x10;
can1->cantxfg.dsr[0] = 0xCC;
can1->cantxfg.dlr = 1;
can1->cantxfg.tbpr = 0;
can1->cantflg = 0x01;
i = 0;
while ((can1->cantflg & 0x01) == 0) {
i++;
if (i == 10) {
printf ("%s: CAN1 send timeout, "
"can not send message!\n",
__FUNCTION__);
return 1;
}
udelay(1000);
}
udelay(1000);
i = 0;
while (!(can2->canrflg & 0x01)) {
i++;
if (i == 10) {
printf ("%s: CAN2 receive timeout, "
"no message received!\n",
__FUNCTION__);
return 1;
}
udelay(1000);
}
if (can2->canrxfg.dsr[0] != 0xCC) {
printf ("%s: CAN2 receive error, "
"data mismatch!\n",
__FUNCTION__);
return 1;
}
/* send a message on CAN2 */
can2->cantbsel = 0x01;
can2->cantxfg.idr[0] = 0x55;
can2->cantxfg.idr[1] = 0x00;
can2->cantxfg.idr[1] &= ~0x8;
can2->cantxfg.idr[1] &= ~0x10;
can2->cantxfg.dsr[0] = 0xCC;
can2->cantxfg.dlr = 1;
can2->cantxfg.tbpr = 0;
can2->cantflg = 0x01;
i = 0;
while ((can2->cantflg & 0x01) == 0) {
i++;
if (i == 10) {
printf ("%s: CAN2 send error, "
"can not send message!\n",
__FUNCTION__);
return 1;
}
udelay(1000);
}
udelay(1000);
i = 0;
while (!(can1->canrflg & 0x01)) {
i++;
if (i == 10) {
printf ("%s: CAN1 receive timeout, "
"no message received!\n",
__FUNCTION__);
return 1;
}
udelay(1000);
}
if (can1->canrxfg.dsr[0] != 0xCC) {
printf ("%s: CAN1 receive error 0x%02x\n",
__FUNCTION__, (can1->canrxfg.dsr[0]));
return 1;
}
return 0;
}
/*
* return 1 if rs232 port unknown
* return 2 on txd/rxd failure (only rs232 2)
* return 3 on rts/cts failure
* return 0 if no failure
*/
int do_rs232(char * const argv[])
{
int error_status = 0;
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_psc *psc1 = (struct mpc5xxx_psc *)MPC5XXX_PSC1;
switch (simple_strtoul(argv[2], NULL, 10)) {
case 1:
/* check RTS <-> CTS loop */
/* set rts to 0 */
psc1->op1 |= 0x01;
/* wait some time before requesting status */
udelay(10);
/* check status at cts */
if ((psc1->ip & 0x01) != 0) {
error_status = 3;
printf ("%s: failure at rs232_1, cts status is %d "
"(should be 0)\n",
__FUNCTION__, (psc1->ip & 0x01));
}
/* set rts to 1 */
psc1->op0 |= 0x01;
/* wait some time before requesting status */
udelay(10);
/* check status at cts */
if ((psc1->ip & 0x01) != 1) {
error_status = 3;
printf ("%s: failure at rs232_1, cts status is %d "
"(should be 1)\n",
__FUNCTION__, (psc1->ip & 0x01));
}
break;
case 2:
/* set PSC3_0, PSC3_2 as output and PSC3_1, PSC3_3 as input */
gpio->simple_ddr &= ~(0x00000F00);
gpio->simple_ddr |= 0x00000500;
/* check TXD <-> RXD loop */
/* set TXD to 1 */
gpio->simple_dvo |= (1 << 8);
/* wait some time before requesting status */
udelay(10);
if ((gpio->simple_ival & 0x00000200) != 0x00000200) {
error_status = 2;
printf ("%s: failure at rs232_2, rxd status is %d "
"(should be 1)\n",
__FUNCTION__,
(gpio->simple_ival & 0x00000200) >> 9);
}
/* set TXD to 0 */
gpio->simple_dvo &= ~(1 << 8);
/* wait some time before requesting status */
udelay(10);
if ((gpio->simple_ival & 0x00000200) != 0x00000000) {
error_status = 2;
printf ("%s: failure at rs232_2, rxd status is %d "
"(should be 0)\n",
__FUNCTION__,
(gpio->simple_ival & 0x00000200) >> 9);
}
/* check RTS <-> CTS loop */
/* set RTS to 1 */
gpio->simple_dvo |= (1 << 10);
/* wait some time before requesting status */
udelay(10);
if ((gpio->simple_ival & 0x00000800) != 0x00000800) {
error_status = 3;
printf ("%s: failure at rs232_2, cts status is %d "
"(should be 1)\n",
__FUNCTION__,
(gpio->simple_ival & 0x00000800) >> 11);
}
/* set RTS to 0 */
gpio->simple_dvo &= ~(1 << 10);
/* wait some time before requesting status */
udelay(10);
if ((gpio->simple_ival & 0x00000800) != 0x00000000) {
error_status = 3;
printf ("%s: failure at rs232_2, cts status is %d "
"(should be 0)\n",
__FUNCTION__,
(gpio->simple_ival & 0x00000800) >> 11);
}
/* set PSC3_0, PSC3_1, PSC3_2 and PSC3_3 as output */
gpio->simple_ddr &= ~(0x00000F00);
gpio->simple_ddr |= 0x00000F00;
break;
default:
printf ("%s: invalid rs232 number %s\n", __FUNCTION__, argv[2]);
error_status = 1;
break;
}
return error_status;
}
#if !defined(CONFIG_FO300) && !defined(CONFIG_TQM5200S)
static void sm501_backlight (unsigned int state)
{
if (state == BL_ON) {
*(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) |=
(1 << 26) | (1 << 27);
} else if (state == BL_OFF)
*(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) &=
~((1 << 26) | (1 << 27));
}
#endif /* !CONFIG_FO300 & !CONFIG_TQM5200S */
int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode;
#ifdef CONFIG_STK52XX_REV100
printf ("Revision 100 of STK52XX not supported!\n");
return 1;
#endif
#if defined(CONFIG_STK52XX)
led_init();
#endif
can_init();
switch (argc) {
case 0:
case 1:
break;
case 2:
if (strncmp (argv[1], "can", 3) == 0) {
rcode = do_can (argv);
if (rcode == 0)
printf ("OK\n");
else
printf ("Error\n");
return rcode;
}
break;
case 3:
if (strncmp (argv[1], "rs232", 3) == 0) {
rcode = do_rs232 (argv);
if (rcode == 0)
printf ("OK\n");
else
printf ("Error\n");
return rcode;
#if !defined(CONFIG_FO300) && !defined(CONFIG_TQM5200S)
} else if (strncmp (argv[1], "backlight", 4) == 0) {
if (strncmp (argv[2], "on", 2) == 0) {
sm501_backlight (BL_ON);
return 0;
}
else if (strncmp (argv[2], "off", 3) == 0) {
sm501_backlight (BL_OFF);
return 0;
}
#endif /* !CONFIG_FO300 & !CONFIG_TQM5200S */
}
break;
#if defined(CONFIG_STK52XX)
case 4:
if (strcmp (argv[1], "led") == 0) {
return (do_led (argv));
}
break;
#endif
default:
break;
}
printf ("Usage:\nfkt cmd [arg1] [arg2] ...\n");
return 1;
}
U_BOOT_CMD(
sound , 5, 1, cmd_sound,
"Sound sub-system",
"saw [duration] [freq] [channel]\n"
" - generate sawtooth for 'duration' ms with frequency 'freq'\n"
" on left \"l\" or right \"r\" channel\n"
"sound square [duration] [freq] [channel]\n"
" - generate squarewave for 'duration' ms with frequency 'freq'\n"
" on left \"l\" or right \"r\" channel\n"
"pcm1772 reg val"
);
U_BOOT_CMD(
wav , 3, 1, cmd_wav,
"play wav file",
"[addr] [bytes]\n"
" - play wav file at address 'addr' with length 'bytes'"
);
U_BOOT_CMD(
beep , 2, 1, cmd_beep,
"play short beep",
"[channel]\n"
" - play short beep on \"l\"eft or \"r\"ight channel"
);
#endif /* CONFIG_STK52XX || CONFIG_FO300 */
#if defined(CONFIG_STK52XX)
U_BOOT_CMD(
fkt , 4, 1, cmd_fkt,
"Function test routines",
"led number on/off\n"
" - 'number's like printed on STK52XX board\n"
"fkt can\n"
" - loopback plug for X83 required\n"
"fkt rs232 number\n"
" - loopback plug(s) for X2 required"
#ifndef CONFIG_TQM5200S
"\n"
"fkt backlight on/off\n"
" - switch backlight on or off"
#endif /* !CONFIG_TQM5200S */
);
#elif defined(CONFIG_FO300)
U_BOOT_CMD(
fkt , 3, 1, cmd_fkt,
"Function test routines",
"fkt can\n"
" - loopback plug for X16/X29 required\n"
"fkt rs232 number\n"
" - loopback plug(s) for X21/X22 required"
);
#endif
#endif