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/*
* (C) Copyright 2008, 2009 Andreas Pfefferle,
* DENX Software Engineering, ap@denx.de.
* (C) Copyright 2009 Detlev Zundel,
* DENX Software Engineering, dzu@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/io.h>
#include <common.h>
#include <config.h>
#include <console.h>
#include <mpc5xxx.h>
#include <pci.h>
#include <command.h>
/* This is needed for the includes in ns16550.h */
#define CONFIG_SYS_NS16550_REG_SIZE 1
#include <ns16550.h>
#define GPIO_BASE ((u_char *)CONFIG_SYS_CS3_START)
#define DIGIN_TOUCHSCR_MASK 0x00003000 /* Inputs 12-13 */
#define DIGIN_KEYB_MASK 0x00010000 /* Input 16 */
#define DIGIN_DRAWER_SW1 0x00400000 /* Input 22 */
#define DIGIN_DRAWER_SW2 0x00800000 /* Input 23 */
#define DIGIO_LED0 0x00000001 /* Output 0 */
#define DIGIO_LED1 0x00000002 /* Output 1 */
#define DIGIO_LED2 0x00000004 /* Output 2 */
#define DIGIO_LED3 0x00000008 /* Output 3 */
#define DIGIO_LED4 0x00000010 /* Output 4 */
#define DIGIO_LED5 0x00000020 /* Output 5 */
#define DIGIO_DRAWER1 0x00000100 /* Output 8 */
#define DIGIO_DRAWER2 0x00000200 /* Output 9 */
#define SERIAL_PORT_BASE ((u_char *)CONFIG_SYS_CS2_START)
#define PSC_OP1_RTS 0x01
#define PSC_OP0_RTS 0x01
/*
* Table with supported baudrates (defined in inka4x0.h)
*/
static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
static unsigned int inka_digin_get_input(void)
{
return in_8(GPIO_BASE + 0) << 0 | in_8(GPIO_BASE + 1) << 8 |
in_8(GPIO_BASE + 2) << 16 | in_8(GPIO_BASE + 3) << 24;
}
#define LED_HIGH(NUM) \
do { \
setbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
} while (0)
#define LED_LOW(NUM) \
do { \
clrbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
} while (0)
#define CHECK_LED(NUM) \
do { \
if (state & (1 << NUM)) { \
LED_HIGH(NUM); \
} else { \
LED_LOW(NUM); \
} \
} while (0)
static void inka_digio_set_output(unsigned int state, int which)
{
volatile struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
if (which == 0) {
/* other */
CHECK_LED(0);
CHECK_LED(1);
CHECK_LED(2);
CHECK_LED(3);
CHECK_LED(4);
CHECK_LED(5);
} else {
if (which == 1) {
/* drawer1 */
if (state) {
clrbits_be32(&gpio->simple_dvo, 0x1000);
udelay(1);
setbits_be32(&gpio->simple_dvo, 0x1000);
} else {
setbits_be32(&gpio->simple_dvo, 0x1000);
udelay(1);
clrbits_be32(&gpio->simple_dvo, 0x1000);
}
}
if (which == 2) {
/* drawer 2 */
if (state) {
clrbits_be32(&gpio->simple_dvo, 0x2000);
udelay(1);
setbits_be32(&gpio->simple_dvo, 0x2000);
} else {
setbits_be32(&gpio->simple_dvo, 0x2000);
udelay(1);
clrbits_be32(&gpio->simple_dvo, 0x2000);
}
}
}
udelay(1);
}
static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[]) {
unsigned int state, val;
switch (argc) {
case 3:
/* Write a value */
val = simple_strtol(argv[2], NULL, 16);
if (strcmp(argv[1], "drawer1") == 0) {
inka_digio_set_output(val, 1);
} else if (strcmp(argv[1], "drawer2") == 0) {
inka_digio_set_output(val, 2);
} else if (strcmp(argv[1], "other") == 0)
inka_digio_set_output(val, 0);
else {
printf("Invalid argument: %s\n", argv[1]);
return -1;
}
/* fall through */
case 2:
/* Read a value */
state = inka_digin_get_input();
if (strcmp(argv[1], "drawer1") == 0) {
val = (state & DIGIN_DRAWER_SW1) >> (ffs(DIGIN_DRAWER_SW1) - 1);
} else if (strcmp(argv[1], "drawer2") == 0) {
val = (state & DIGIN_DRAWER_SW2) >> (ffs(DIGIN_DRAWER_SW2) - 1);
} else if (strcmp(argv[1], "other") == 0) {
val = ((state & DIGIN_KEYB_MASK) >> (ffs(DIGIN_KEYB_MASK) - 1))
| (state & DIGIN_TOUCHSCR_MASK) >> (ffs(DIGIN_TOUCHSCR_MASK) - 2);
} else {
printf("Invalid argument: %s\n", argv[1]);
return -1;
}
printf("exit code: 0x%X\n", val);
return 0;
default:
return cmd_usage(cmdtp);
}
return -1;
}
DECLARE_GLOBAL_DATA_PTR;
static int ser_init(volatile struct mpc5xxx_psc *psc, int baudrate)
{
unsigned long baseclk;
int div;
/* reset PSC */
out_8(&psc->command, PSC_SEL_MODE_REG_1);
/* select clock sources */
out_be16(&psc->psc_clock_select, 0);
baseclk = (gd->arch.ipb_clk + 16) / 32;
/* switch to UART mode */
out_be32(&psc->sicr, 0);
/* configure parity, bit length and so on */
out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
out_8(&psc->mode, PSC_MODE_ONE_STOP);
/* set up UART divisor */
div = (baseclk + (baudrate / 2)) / baudrate;
out_8(&psc->ctur, (div >> 8) & 0xff);
out_8(&psc->ctlr, div & 0xff);
/* disable all interrupts */
out_be16(&psc->psc_imr, 0);
/* reset and enable Rx/Tx */
out_8(&psc->command, PSC_RST_RX);
out_8(&psc->command, PSC_RST_TX);
out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
return 0;
}
static void ser_putc(volatile struct mpc5xxx_psc *psc, const char c)
{
/* Wait 1 second for last character to go. */
int i = 0;
while (!(psc->psc_status & PSC_SR_TXEMP) && (i++ < 1000000/10))
udelay(10);
psc->psc_buffer_8 = c;
}
static int ser_getc(volatile struct mpc5xxx_psc *psc)
{
/* Wait for a character to arrive. */
int i = 0;
while (!(in_be16(&psc->psc_status) & PSC_SR_RXRDY) && (i++ < 1000000/10))
udelay(10);
return in_8(&psc->psc_buffer_8);
}
static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[]) {
volatile struct NS16550 *uart;
volatile struct mpc5xxx_psc *psc;
unsigned int num, mode;
int combrd, baudrate, i, j, len;
int address;
if (argc < 5)
return cmd_usage(cmdtp);
argc--;
argv++;
num = simple_strtol(argv[0], NULL, 0);
if (num < 0 || num > 11) {
printf("invalid argument for num: %d\n", num);
return -1;
}
mode = simple_strtol(argv[1], NULL, 0);
combrd = 0;
baudrate = simple_strtoul(argv[2], NULL, 10);
for (i=0; i<N_BAUDRATES; ++i) {
if (baudrate == baudrate_table[i])
break;
}
if (i == N_BAUDRATES) {
printf("## Baudrate %d bps not supported\n",
baudrate);
return 1;
}
combrd = 115200 / baudrate;
uart = (struct NS16550 *)(SERIAL_PORT_BASE + (num << 3));
printf("Testing uart %d.\n\n", num);
if ((num >= 0) && (num <= 7)) {
if (mode & 1) {
/* turn on 'loopback' mode */
out_8(&uart->mcr, UART_MCR_LOOP);
} else {
/*
* establish the UART's operational parameters
* set DLAB=1, so rbr accesses DLL
*/
out_8(&uart->lcr, UART_LCR_DLAB);
/* set baudrate */
out_8(&uart->rbr, combrd);
/* set data-format: 8-N-1 */
out_8(&uart->lcr, UART_LCR_WLS_8);
}
if (mode & 2) {
/* set request to send */
out_8(&uart->mcr, UART_MCR_RTS);
udelay(10);
/* check clear to send */
if ((in_8(&uart->msr) & UART_MSR_CTS) == 0x00)
return -1;
}
if (mode & 4) {
/* set data terminal ready */
out_8(&uart->mcr, UART_MCR_DTR);
udelay(10);
/* check data set ready and carrier detect */
if ((in_8(&uart->msr) & (UART_MSR_DSR | UART_MSR_DCD))
!= (UART_MSR_DSR | UART_MSR_DCD))
return -1;
}
/* write each message-character, read it back, and display it */
for (i = 0, len = strlen(argv[3]); i < len; ++i) {
j = 0;
while ((in_8(&uart->lsr) & UART_LSR_THRE) == 0x00) {
if (j++ > CONFIG_SYS_HZ)
break;
udelay(10);
}
out_8(&uart->rbr, argv[3][i]);
j = 0;
while ((in_8(&uart->lsr) & UART_LSR_DR) == 0x00) {
if (j++ > CONFIG_SYS_HZ)
break;
udelay(10);
}
printf("%c", in_8(&uart->rbr));
}
printf("\n\n");
out_8(&uart->mcr, 0x00);
} else {
address = 0;
switch (num) {
case 8:
address = MPC5XXX_PSC6;
break;
case 9:
address = MPC5XXX_PSC3;
break;
case 10:
address = MPC5XXX_PSC2;
break;
case 11:
address = MPC5XXX_PSC1;
break;
}
psc = (struct mpc5xxx_psc *)address;
ser_init(psc, simple_strtol(argv[2], NULL, 0));
if (mode & 2) {
/* set request to send */
out_8(&psc->op0, PSC_OP0_RTS);
udelay(10);
/* check clear to send */
if ((in_8(&psc->ip) & PSC_IPCR_CTS) == 0)
return -1;
}
len = strlen(argv[3]);
for (i = 0; i < len; ++i) {
ser_putc(psc, argv[3][i]);
printf("%c", ser_getc(psc));
}
printf("\n\n");
}
return 0;
}
#define BUZZER_GPT (MPC5XXX_GPT + 0x60) /* GPT6 */
static void buzzer_turn_on(unsigned int freq)
{
volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
const u32 prescale = gd->arch.ipb_clk / freq / 128;
const u32 count = 128;
const u32 width = 64;
gpt->cir = (prescale << 16) | count;
gpt->pwmcr = width << 16;
gpt->emsr = 3; /* Timer enabled for PWM */
}
static void buzzer_turn_off(void)
{
volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
gpt->emsr = 0;
}
static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[]) {
unsigned int period, freq;
int prev, i;
if (argc != 3)
return cmd_usage(cmdtp);
argc--;
argv++;
period = simple_strtol(argv[0], NULL, 0);
if (!period)
printf("Zero period is senseless\n");
argc--;
argv++;
freq = simple_strtol(argv[0], NULL, 0);
/* avoid zero prescale in buzzer_turn_on() */
if (freq > gd->arch.ipb_clk / 128) {
printf("%dHz exceeds maximum (%ldHz)\n", freq,
gd->arch.ipb_clk / 128);
} else if (!freq)
printf("Zero frequency is senseless\n");
else
buzzer_turn_on(freq);
clear_ctrlc();
prev = disable_ctrlc(0);
printf("Buzzing for %d ms. Type ^C to abort!\n\n", period);
i = 0;
while (!ctrlc() && (i++ < CONFIG_SYS_HZ))
udelay(period);
clear_ctrlc();
disable_ctrlc(prev);
buzzer_turn_off();
return 0;
}
static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
cmd_tbl_t cmd_inkadiag_sub[] = {
U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
"<drawer1|drawer2|other> [value] - get or set specified signal"),
U_BOOT_CMD_MKENT(serial, 4, 1, do_inkadiag_serial, "test serial port",
"<num> <mode> <baudrate> <msg> - test uart num [0..11] in mode\n"
"and baudrate with msg"),
U_BOOT_CMD_MKENT(buzzer, 2, 1, do_inkadiag_buzzer, "activate buzzer",
"<period> <freq> - turn buzzer on for period ms with freq hz"),
U_BOOT_CMD_MKENT(help, 4, 1, do_inkadiag_help, "get help",
"[command] - get help for command"),
};
static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[]) {
extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[]);
/* do_help prints command name - we prepend inkadiag to our subcommands! */
#ifdef CONFIG_SYS_LONGHELP
puts ("inkadiag ");
#endif
return _do_help(&cmd_inkadiag_sub[0],
ARRAY_SIZE(cmd_inkadiag_sub), cmdtp, flag, argc, argv);
}
static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[]) {
cmd_tbl_t *c;
c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
if (c) {
argc--;
argv++;
return c->cmd(c, flag, argc, argv);
} else {
/* Unrecognized command */
return cmd_usage(cmdtp);
}
}
U_BOOT_CMD(inkadiag, 6, 1, do_inkadiag,
"inkadiag - inka diagnosis\n",
"[inkadiag what ...]\n"
" - perform a diagnosis on inka hardware\n"
"'inkadiag' performs hardware tests.");