mirror of
https://github.com/AsahiLinux/u-boot
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24b852a7a2
The console includes a global variable and several functions that are only used by a small subset of U-Boot files. Before adding more functions, move the definitions into their own header file. Signed-off-by: Simon Glass <sjg@chromium.org>
465 lines
11 KiB
C
465 lines
11 KiB
C
/*
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* (C) Copyright 2008, 2009 Andreas Pfefferle,
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* DENX Software Engineering, ap@denx.de.
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* (C) Copyright 2009 Detlev Zundel,
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* DENX Software Engineering, dzu@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/io.h>
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#include <common.h>
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#include <config.h>
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#include <console.h>
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#include <mpc5xxx.h>
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#include <pci.h>
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#include <command.h>
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/* This is needed for the includes in ns16550.h */
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#define CONFIG_SYS_NS16550_REG_SIZE 1
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#include <ns16550.h>
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#define GPIO_BASE ((u_char *)CONFIG_SYS_CS3_START)
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#define DIGIN_TOUCHSCR_MASK 0x00003000 /* Inputs 12-13 */
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#define DIGIN_KEYB_MASK 0x00010000 /* Input 16 */
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#define DIGIN_DRAWER_SW1 0x00400000 /* Input 22 */
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#define DIGIN_DRAWER_SW2 0x00800000 /* Input 23 */
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#define DIGIO_LED0 0x00000001 /* Output 0 */
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#define DIGIO_LED1 0x00000002 /* Output 1 */
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#define DIGIO_LED2 0x00000004 /* Output 2 */
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#define DIGIO_LED3 0x00000008 /* Output 3 */
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#define DIGIO_LED4 0x00000010 /* Output 4 */
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#define DIGIO_LED5 0x00000020 /* Output 5 */
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#define DIGIO_DRAWER1 0x00000100 /* Output 8 */
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#define DIGIO_DRAWER2 0x00000200 /* Output 9 */
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#define SERIAL_PORT_BASE ((u_char *)CONFIG_SYS_CS2_START)
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#define PSC_OP1_RTS 0x01
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#define PSC_OP0_RTS 0x01
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/*
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* Table with supported baudrates (defined in inka4x0.h)
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*/
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static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
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#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
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static unsigned int inka_digin_get_input(void)
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{
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return in_8(GPIO_BASE + 0) << 0 | in_8(GPIO_BASE + 1) << 8 |
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in_8(GPIO_BASE + 2) << 16 | in_8(GPIO_BASE + 3) << 24;
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}
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#define LED_HIGH(NUM) \
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do { \
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setbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
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} while (0)
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#define LED_LOW(NUM) \
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do { \
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clrbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
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} while (0)
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#define CHECK_LED(NUM) \
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do { \
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if (state & (1 << NUM)) { \
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LED_HIGH(NUM); \
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} else { \
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LED_LOW(NUM); \
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} \
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} while (0)
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static void inka_digio_set_output(unsigned int state, int which)
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{
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volatile struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
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if (which == 0) {
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/* other */
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CHECK_LED(0);
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CHECK_LED(1);
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CHECK_LED(2);
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CHECK_LED(3);
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CHECK_LED(4);
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CHECK_LED(5);
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} else {
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if (which == 1) {
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/* drawer1 */
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if (state) {
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clrbits_be32(&gpio->simple_dvo, 0x1000);
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udelay(1);
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setbits_be32(&gpio->simple_dvo, 0x1000);
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} else {
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setbits_be32(&gpio->simple_dvo, 0x1000);
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udelay(1);
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clrbits_be32(&gpio->simple_dvo, 0x1000);
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}
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}
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if (which == 2) {
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/* drawer 2 */
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if (state) {
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clrbits_be32(&gpio->simple_dvo, 0x2000);
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udelay(1);
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setbits_be32(&gpio->simple_dvo, 0x2000);
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} else {
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setbits_be32(&gpio->simple_dvo, 0x2000);
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udelay(1);
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clrbits_be32(&gpio->simple_dvo, 0x2000);
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}
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}
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}
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udelay(1);
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}
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static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[]) {
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unsigned int state, val;
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switch (argc) {
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case 3:
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/* Write a value */
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val = simple_strtol(argv[2], NULL, 16);
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if (strcmp(argv[1], "drawer1") == 0) {
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inka_digio_set_output(val, 1);
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} else if (strcmp(argv[1], "drawer2") == 0) {
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inka_digio_set_output(val, 2);
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} else if (strcmp(argv[1], "other") == 0)
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inka_digio_set_output(val, 0);
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else {
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printf("Invalid argument: %s\n", argv[1]);
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return -1;
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}
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/* fall through */
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case 2:
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/* Read a value */
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state = inka_digin_get_input();
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if (strcmp(argv[1], "drawer1") == 0) {
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val = (state & DIGIN_DRAWER_SW1) >> (ffs(DIGIN_DRAWER_SW1) - 1);
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} else if (strcmp(argv[1], "drawer2") == 0) {
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val = (state & DIGIN_DRAWER_SW2) >> (ffs(DIGIN_DRAWER_SW2) - 1);
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} else if (strcmp(argv[1], "other") == 0) {
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val = ((state & DIGIN_KEYB_MASK) >> (ffs(DIGIN_KEYB_MASK) - 1))
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| (state & DIGIN_TOUCHSCR_MASK) >> (ffs(DIGIN_TOUCHSCR_MASK) - 2);
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} else {
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printf("Invalid argument: %s\n", argv[1]);
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return -1;
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}
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printf("exit code: 0x%X\n", val);
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return 0;
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default:
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return cmd_usage(cmdtp);
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}
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return -1;
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}
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DECLARE_GLOBAL_DATA_PTR;
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static int ser_init(volatile struct mpc5xxx_psc *psc, int baudrate)
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{
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unsigned long baseclk;
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int div;
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/* reset PSC */
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out_8(&psc->command, PSC_SEL_MODE_REG_1);
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/* select clock sources */
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out_be16(&psc->psc_clock_select, 0);
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baseclk = (gd->arch.ipb_clk + 16) / 32;
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/* switch to UART mode */
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out_be32(&psc->sicr, 0);
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/* configure parity, bit length and so on */
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out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
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out_8(&psc->mode, PSC_MODE_ONE_STOP);
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/* set up UART divisor */
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div = (baseclk + (baudrate / 2)) / baudrate;
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out_8(&psc->ctur, (div >> 8) & 0xff);
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out_8(&psc->ctlr, div & 0xff);
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/* disable all interrupts */
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out_be16(&psc->psc_imr, 0);
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/* reset and enable Rx/Tx */
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out_8(&psc->command, PSC_RST_RX);
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out_8(&psc->command, PSC_RST_TX);
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out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
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return 0;
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}
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static void ser_putc(volatile struct mpc5xxx_psc *psc, const char c)
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{
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/* Wait 1 second for last character to go. */
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int i = 0;
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while (!(psc->psc_status & PSC_SR_TXEMP) && (i++ < 1000000/10))
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udelay(10);
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psc->psc_buffer_8 = c;
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}
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static int ser_getc(volatile struct mpc5xxx_psc *psc)
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{
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/* Wait for a character to arrive. */
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int i = 0;
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while (!(in_be16(&psc->psc_status) & PSC_SR_RXRDY) && (i++ < 1000000/10))
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udelay(10);
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return in_8(&psc->psc_buffer_8);
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}
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static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[]) {
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volatile struct NS16550 *uart;
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volatile struct mpc5xxx_psc *psc;
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unsigned int num, mode;
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int combrd, baudrate, i, j, len;
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int address;
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if (argc < 5)
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return cmd_usage(cmdtp);
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argc--;
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argv++;
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num = simple_strtol(argv[0], NULL, 0);
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if (num < 0 || num > 11) {
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printf("invalid argument for num: %d\n", num);
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return -1;
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}
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mode = simple_strtol(argv[1], NULL, 0);
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combrd = 0;
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baudrate = simple_strtoul(argv[2], NULL, 10);
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for (i=0; i<N_BAUDRATES; ++i) {
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if (baudrate == baudrate_table[i])
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break;
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}
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if (i == N_BAUDRATES) {
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printf("## Baudrate %d bps not supported\n",
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baudrate);
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return 1;
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}
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combrd = 115200 / baudrate;
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uart = (struct NS16550 *)(SERIAL_PORT_BASE + (num << 3));
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printf("Testing uart %d.\n\n", num);
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if ((num >= 0) && (num <= 7)) {
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if (mode & 1) {
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/* turn on 'loopback' mode */
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out_8(&uart->mcr, UART_MCR_LOOP);
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} else {
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/*
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* establish the UART's operational parameters
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* set DLAB=1, so rbr accesses DLL
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*/
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out_8(&uart->lcr, UART_LCR_DLAB);
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/* set baudrate */
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out_8(&uart->rbr, combrd);
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/* set data-format: 8-N-1 */
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out_8(&uart->lcr, UART_LCR_WLS_8);
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}
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if (mode & 2) {
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/* set request to send */
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out_8(&uart->mcr, UART_MCR_RTS);
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udelay(10);
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/* check clear to send */
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if ((in_8(&uart->msr) & UART_MSR_CTS) == 0x00)
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return -1;
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}
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if (mode & 4) {
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/* set data terminal ready */
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out_8(&uart->mcr, UART_MCR_DTR);
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udelay(10);
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/* check data set ready and carrier detect */
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if ((in_8(&uart->msr) & (UART_MSR_DSR | UART_MSR_DCD))
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!= (UART_MSR_DSR | UART_MSR_DCD))
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return -1;
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}
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/* write each message-character, read it back, and display it */
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for (i = 0, len = strlen(argv[3]); i < len; ++i) {
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j = 0;
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while ((in_8(&uart->lsr) & UART_LSR_THRE) == 0x00) {
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if (j++ > CONFIG_SYS_HZ)
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break;
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udelay(10);
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}
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out_8(&uart->rbr, argv[3][i]);
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j = 0;
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while ((in_8(&uart->lsr) & UART_LSR_DR) == 0x00) {
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if (j++ > CONFIG_SYS_HZ)
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break;
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udelay(10);
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}
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printf("%c", in_8(&uart->rbr));
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}
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printf("\n\n");
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out_8(&uart->mcr, 0x00);
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} else {
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address = 0;
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switch (num) {
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case 8:
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address = MPC5XXX_PSC6;
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break;
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case 9:
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address = MPC5XXX_PSC3;
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break;
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case 10:
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address = MPC5XXX_PSC2;
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break;
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case 11:
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address = MPC5XXX_PSC1;
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break;
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}
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psc = (struct mpc5xxx_psc *)address;
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ser_init(psc, simple_strtol(argv[2], NULL, 0));
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if (mode & 2) {
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/* set request to send */
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out_8(&psc->op0, PSC_OP0_RTS);
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udelay(10);
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/* check clear to send */
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if ((in_8(&psc->ip) & PSC_IPCR_CTS) == 0)
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return -1;
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}
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len = strlen(argv[3]);
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for (i = 0; i < len; ++i) {
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ser_putc(psc, argv[3][i]);
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printf("%c", ser_getc(psc));
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}
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printf("\n\n");
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}
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return 0;
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}
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#define BUZZER_GPT (MPC5XXX_GPT + 0x60) /* GPT6 */
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static void buzzer_turn_on(unsigned int freq)
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{
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volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
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const u32 prescale = gd->arch.ipb_clk / freq / 128;
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const u32 count = 128;
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const u32 width = 64;
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gpt->cir = (prescale << 16) | count;
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gpt->pwmcr = width << 16;
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gpt->emsr = 3; /* Timer enabled for PWM */
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}
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static void buzzer_turn_off(void)
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{
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volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
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gpt->emsr = 0;
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}
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static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[]) {
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unsigned int period, freq;
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int prev, i;
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if (argc != 3)
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return cmd_usage(cmdtp);
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argc--;
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argv++;
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period = simple_strtol(argv[0], NULL, 0);
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if (!period)
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printf("Zero period is senseless\n");
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argc--;
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argv++;
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freq = simple_strtol(argv[0], NULL, 0);
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/* avoid zero prescale in buzzer_turn_on() */
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if (freq > gd->arch.ipb_clk / 128) {
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printf("%dHz exceeds maximum (%ldHz)\n", freq,
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gd->arch.ipb_clk / 128);
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} else if (!freq)
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printf("Zero frequency is senseless\n");
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else
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buzzer_turn_on(freq);
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clear_ctrlc();
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prev = disable_ctrlc(0);
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printf("Buzzing for %d ms. Type ^C to abort!\n\n", period);
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i = 0;
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while (!ctrlc() && (i++ < CONFIG_SYS_HZ))
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udelay(period);
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clear_ctrlc();
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disable_ctrlc(prev);
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buzzer_turn_off();
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return 0;
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}
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static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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cmd_tbl_t cmd_inkadiag_sub[] = {
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U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
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"<drawer1|drawer2|other> [value] - get or set specified signal"),
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U_BOOT_CMD_MKENT(serial, 4, 1, do_inkadiag_serial, "test serial port",
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"<num> <mode> <baudrate> <msg> - test uart num [0..11] in mode\n"
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"and baudrate with msg"),
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U_BOOT_CMD_MKENT(buzzer, 2, 1, do_inkadiag_buzzer, "activate buzzer",
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"<period> <freq> - turn buzzer on for period ms with freq hz"),
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U_BOOT_CMD_MKENT(help, 4, 1, do_inkadiag_help, "get help",
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"[command] - get help for command"),
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};
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static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[]) {
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extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
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cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[]);
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/* do_help prints command name - we prepend inkadiag to our subcommands! */
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#ifdef CONFIG_SYS_LONGHELP
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puts ("inkadiag ");
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#endif
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return _do_help(&cmd_inkadiag_sub[0],
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ARRAY_SIZE(cmd_inkadiag_sub), cmdtp, flag, argc, argv);
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}
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static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[]) {
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cmd_tbl_t *c;
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c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
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if (c) {
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argc--;
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argv++;
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return c->cmd(c, flag, argc, argv);
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} else {
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/* Unrecognized command */
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return cmd_usage(cmdtp);
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}
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}
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U_BOOT_CMD(inkadiag, 6, 1, do_inkadiag,
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"inkadiag - inka diagnosis\n",
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"[inkadiag what ...]\n"
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" - perform a diagnosis on inka hardware\n"
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"'inkadiag' performs hardware tests.");
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