-/*
- * (C) Copyright 2005
- * Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.de
- *
- * (C) Copyright 2005
- * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-
-/*
- * BC3450 specific commands
- */
-#if defined(CONFIG_CMD_BSP)
-
-/*
- * Definitions for DS1620 chip
- */
-#define THERM_START_CONVERT 0xee
-#define THERM_RESET 0xaf
-#define THERM_READ_CONFIG 0xac
-#define THERM_READ_TEMP 0xaa
-#define THERM_READ_TL 0xa2
-#define THERM_READ_TH 0xa1
-#define THERM_WRITE_CONFIG 0x0c
-#define THERM_WRITE_TL 0x02
-#define THERM_WRITE_TH 0x01
-
-#define CONFIG_SYS_1SHOT 1
-#define CONFIG_SYS_STANDALONE 0
-
-struct therm {
- int hi;
- int lo;
-};
-
-/*
- * SM501 Register
- */
-#define SM501_GPIO_CTRL_LOW 0x00000008UL /* gpio pins 0..31 */
-#define SM501_GPIO_CTRL_HIGH 0x0000000CUL /* gpio pins 32..63 */
-#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
-#define SM501_CRT_DISPLAY_CONTROL 0x00080200UL
-
-/* SM501 CRT Display Control Bits */
-#define SM501_CDC_SEL (1 << 9)
-#define SM501_CDC_TE (1 << 8)
-#define SM501_CDC_E (1 << 2)
-
-/* SM501 Panel Display Control Bits */
-#define SM501_PDC_FPEN (1 << 27)
-#define SM501_PDC_BIAS (1 << 26)
-#define SM501_PDC_DATA (1 << 25)
-#define SM501_PDC_VDDEN (1 << 24)
-
-/* SM501 GPIO Data LOW Bits */
-#define SM501_GPIO24 0x01000000
-#define SM501_GPIO25 0x02000000
-#define SM501_GPIO26 0x04000000
-#define SM501_GPIO27 0x08000000
-#define SM501_GPIO28 0x10000000
-#define SM501_GPIO29 0x20000000
-#define SM501_GPIO30 0x40000000
-#define SM501_GPIO31 0x80000000
-
-/* SM501 GPIO Data HIGH Bits */
-#define SM501_GPIO46 0x00004000
-#define SM501_GPIO47 0x00008000
-#define SM501_GPIO48 0x00010000
-#define SM501_GPIO49 0x00020000
-#define SM501_GPIO50 0x00040000
-#define SM501_GPIO51 0x00080000
-
-/* BC3450 GPIOs @ SM501 Data LOW */
-#define DIP (SM501_GPIO24 | SM501_GPIO25 | SM501_GPIO26 | SM501_GPIO27)
-#define DS1620_DQ SM501_GPIO29 /* I/O */
-#define DS1620_CLK SM501_GPIO30 /* High active O/P */
-#define DS1620_RES SM501_GPIO31 /* Low active O/P */
-/* BC3450 GPIOs @ SM501 Data HIGH */
-#define BUZZER SM501_GPIO47 /* Low active O/P */
-#define DS1620_TLOW SM501_GPIO48 /* High active I/P */
-#define PWR_OFF SM501_GPIO49 /* Low active O/P */
-#define FP_DATA_TRI SM501_GPIO50 /* High active O/P */
-
-
-/*
- * Initialise GPIO on SM501
- *
- * This function may be called from several other functions.
- * Yet, the initialisation sequence is executed only the first
- * time the function is called.
- */
-int sm501_gpio_init (void)
-{
- static int init_done = 0;
-
- if (init_done) {
- debug("sm501_gpio_init: nothing to be done.\n");
- return 1;
- }
-
- /* 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;
-
- /* set up default O/Ps */
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
- ~(DS1620_RES | DS1620_CLK);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_DQ;
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
- ~(FP_DATA_TRI);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
- (BUZZER | PWR_OFF);
-
- /* configure directions for SM501 GPIO pins */
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_LOW) &= ~(0xFF << 24);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_HIGH) &=
- ~(0x3F << 14);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &=
- ~(DIP | DS1620_DQ);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |=
- (DS1620_RES | DS1620_CLK);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) &=
- ~DS1620_TLOW;
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) |=
- (PWR_OFF | BUZZER | FP_DATA_TRI);
-
- init_done = 1;
- debug("sm501_gpio_init: done.\n");
-
- return 0;
-}
-
-
-/*
- * dip - read Config Inputs
- *
- * read and prints the dip switch
- * and/or external config inputs (4bits) 0...0x0F
- */
-int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- vu_long rc = 0;
-
- sm501_gpio_init ();
-
- /* read dip switch */
- rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
- rc = ~rc;
- rc &= DIP;
- rc = (int) (rc >> 24);
-
- /* plausibility check */
- if (rc > 0x0F)
- return -1;
-
- printf ("0x%lx\n", rc);
- return 0;
-}
-
-U_BOOT_CMD (dip, 1, 1, cmd_dip,
- "read dip switch and config inputs",
- "\n"
- " - prints the state of the dip switch and/or\n"
- " external configuration inputs as hex value.\n"
- " - \"Config 1\" is the LSB");
-
-
-/*
- * buz - turns Buzzer on/off
- */
-#ifdef CONFIG_BC3450_BUZZER
-static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- if (argc != 2) {
- printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
- return 1;
- }
-
- sm501_gpio_init ();
-
- if (strncmp (argv[1], "on", 2) == 0) {
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
- ~(BUZZER);
- return 0;
- } else if (strncmp (argv[1], "off", 3) == 0) {
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
- BUZZER;
- return 0;
- }
- printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
- return 1;
-}
-
-U_BOOT_CMD (buz, 2, 1, cmd_buz,
- "turns buzzer on/off",
- "\n" "buz <on/off>\n" " - turns the buzzer on or off");
-#endif /* CONFIG_BC3450_BUZZER */
-
-
-/*
- * fp - front panel commands
- */
-static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- sm501_gpio_init ();
-
- if (strncmp (argv[1], "on", 2) == 0) {
- /* turn on VDD first */
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_VDDEN;
- udelay (1000);
- /* then put data on */
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_DATA;
- /* wait some time and enable backlight */
- udelay (1000);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_BIAS;
- udelay (1000);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_FPEN;
- return 0;
- } else if (strncmp (argv[1], "off", 3) == 0) {
- /* turn off the backlight first */
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_FPEN;
- udelay (1000);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_BIAS;
- udelay (200000);
- /* wait some time, then remove data */
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_DATA;
- udelay (1000);
- /* and remove VDD last */
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &=
- ~SM501_PDC_VDDEN;
- return 0;
- } else if (strncmp (argv[1], "bl", 2) == 0) {
- /* turn on/off backlight only */
- if (strncmp (argv[2], "on", 2) == 0) {
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |=
- SM501_PDC_BIAS;
- udelay (1000);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) |=
- SM501_PDC_FPEN;
- return 0;
- } else if (strncmp (argv[2], "off", 3) == 0) {
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &=
- ~SM501_PDC_FPEN;
- udelay (1000);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_PANEL_DISPLAY_CONTROL) &=
- ~SM501_PDC_BIAS;
- return 0;
- }
- }
-#ifdef CONFIG_BC3450_CRT
- else if (strncmp (argv[1], "crt", 3) == 0) {
- /* enables/disables the crt output (debug only) */
- if (strncmp (argv[2], "on", 2) == 0) {
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_CRT_DISPLAY_CONTROL) |=
- (SM501_CDC_TE | SM501_CDC_E);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_CRT_DISPLAY_CONTROL) &=
- ~SM501_CDC_SEL;
- return 0;
- } else if (strncmp (argv[2], "off", 3) == 0) {
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_CRT_DISPLAY_CONTROL) &=
- ~(SM501_CDC_TE | SM501_CDC_E);
- *(vu_long *) (SM501_MMIO_BASE +
- SM501_CRT_DISPLAY_CONTROL) |=
- SM501_CDC_SEL;
- return 0;
- }
- }
-#endif /* CONFIG_BC3450_CRT */
- printf ("Usage:%s\n", cmdtp->help);
- return 1;
-}
-
-U_BOOT_CMD (fp, 3, 1, cmd_fp,
- "front panes access functions",
- "\n"
- "fp bl <on/off>\n"
- " - turns the CCFL backlight of the display on/off\n"
- "fp <on/off>\n" " - turns the whole display on/off"
-#ifdef CONFIG_BC3450_CRT
- "\n"
- "fp crt <on/off>\n"
- " - enables/disables the crt output (debug only)"
-#endif /* CONFIG_BC3450_CRT */
- );
-
-/*
- * temp - DS1620 thermometer
- */
-/* GERSYS BC3450 specific functions */
-static inline void bc_ds1620_set_clk (int clk)
-{
- if (clk)
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
- DS1620_CLK;
- else
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
- ~DS1620_CLK;
-}
-
-static inline void bc_ds1620_set_data (int dat)
-{
- if (dat)
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
- DS1620_DQ;
- else
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
- ~DS1620_DQ;
-}
-
-static inline int bc_ds1620_get_data (void)
-{
- vu_long rc;
-
- rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
- rc &= DS1620_DQ;
- if (rc != 0)
- rc = 1;
- return (int) rc;
-}
-
-static inline void bc_ds1620_set_data_dir (int dir)
-{
- if (dir) /* in */
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &= ~DS1620_DQ;
- else /* out */
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |= DS1620_DQ;
-}
-
-static inline void bc_ds1620_set_reset (int res)
-{
- if (res)
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_RES;
- else
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &= ~DS1620_RES;
-}
-
-/* hardware independent functions */
-static void ds1620_send_bits (int nr, int value)
-{
- int i;
-
- for (i = 0; i < nr; i++) {
- bc_ds1620_set_data (value & 1);
- bc_ds1620_set_clk (0);
- udelay (1);
- bc_ds1620_set_clk (1);
- udelay (1);
-
- value >>= 1;
- }
-}
-
-static unsigned int ds1620_recv_bits (int nr)
-{
- unsigned int value = 0, mask = 1;
- int i;
-
- bc_ds1620_set_data (0);
-
- for (i = 0; i < nr; i++) {
- bc_ds1620_set_clk (0);
- udelay (1);
-
- if (bc_ds1620_get_data ())
- value |= mask;
-
- mask <<= 1;
-
- bc_ds1620_set_clk (1);
- udelay (1);
- }
-
- return value;
-}
-
-static void ds1620_out (int cmd, int bits, int value)
-{
- bc_ds1620_set_clk (1);
- bc_ds1620_set_data_dir (0);
-
- bc_ds1620_set_reset (0);
- udelay (1);
- bc_ds1620_set_reset (1);
-
- udelay (1);
-
- ds1620_send_bits (8, cmd);
- if (bits)
- ds1620_send_bits (bits, value);
-
- udelay (1);
-
- /* go stand alone */
- bc_ds1620_set_data_dir (1);
- bc_ds1620_set_reset (0);
- bc_ds1620_set_clk (0);
-
- udelay (10000);
-}
-
-static unsigned int ds1620_in (int cmd, int bits)
-{
- unsigned int value;
-
- bc_ds1620_set_clk (1);
- bc_ds1620_set_data_dir (0);
-
- bc_ds1620_set_reset (0);
- udelay (1);
- bc_ds1620_set_reset (1);
-
- udelay (1);
-
- ds1620_send_bits (8, cmd);
-
- bc_ds1620_set_data_dir (1);
- value = ds1620_recv_bits (bits);
-
- /* go stand alone */
- bc_ds1620_set_data_dir (1);
- bc_ds1620_set_reset (0);
- bc_ds1620_set_clk (0);
-
- return value;
-}
-
-static int cvt_9_to_int (unsigned int val)
-{
- if (val & 0x100)
- val |= 0xfffffe00;
-
- return val;
-}
-
-/* set thermostate thresholds */
-static void ds1620_write_state (struct therm *therm)
-{
- ds1620_out (THERM_WRITE_TL, 9, therm->lo);
- ds1620_out (THERM_WRITE_TH, 9, therm->hi);
- ds1620_out (THERM_START_CONVERT, 0, 0);
-}
-
-static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
- int i;
- struct therm therm;
-
- sm501_gpio_init ();
-
- /* print temperature */
- if (argc == 1) {
- i = cvt_9_to_int (ds1620_in (THERM_READ_TEMP, 9));
- printf ("%d.%d C\n", i >> 1, i & 1 ? 5 : 0);
- return 0;
- }
-
- /* set to default operation */
- if (strncmp (argv[1], "set", 3) == 0) {
- if (strncmp (argv[2], "default", 3) == 0) {
- therm.hi = +88;
- therm.lo = -20;
- therm.hi <<= 1;
- therm.lo <<= 1;
- ds1620_write_state (&therm);
- ds1620_out (THERM_WRITE_CONFIG, 8, CONFIG_SYS_STANDALONE);
- return 0;
- }
- }
-
- printf ("Usage:%s\n", cmdtp->help);
- return 1;
-}
-
-U_BOOT_CMD (temp, 3, 1, cmd_temp,
- "print current temperature",
- "\n" "temp\n" " - print current temperature");
-
-#ifdef CONFIG_BC3450_CAN
-/*
- * Initialise CAN interface
- *
- * 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 BC3450.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;
-}
-
-/*
- * Do CAN test
- * by sending message between CAN1 and CAN2
- *
- * 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;
-}
-#endif /* CONFIG_BC3450_CAN */
-
-/*
- * test - BC3450 HW test routines
- */
-int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
-{
-#ifdef CONFIG_BC3450_CAN
- int rcode;
-
- can_init ();
-#endif /* CONFIG_BC3450_CAN */
-
- sm501_gpio_init ();
-
- if (argc != 2) {
- printf ("Usage:%s\n", cmdtp->help);
- return 1;
- }
-
- if (strncmp (argv[1], "unit-off", 8) == 0) {
- printf ("waiting 2 seconds...\n");
- udelay (2000000);
- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
- ~PWR_OFF;
- return 0;
- }
-#ifdef CONFIG_BC3450_CAN
- else if (strncmp (argv[1], "can", 2) == 0) {
- rcode = do_can (argv);
- if (simple_strtoul (argv[2], NULL, 10) == 2) {
- if (rcode == 0)
- printf ("OK\n");
- else
- printf ("Error\n");
- }
- return rcode;
- }
-#endif /* CONFIG_BC3450_CAN */
-
- printf ("Usage:%s\n", cmdtp->help);
- return 1;
-}
-
-U_BOOT_CMD (test, 2, 1, cmd_test, "unit test routines", "\n"
-#ifdef CONFIG_BC3450_CAN
- "test can\n"
- " - connect CAN1 (X8) with CAN2 (X9) for this test\n"
-#endif /* CONFIG_BC3450_CAN */
- "test unit-off\n"
- " - turns off the BC3450 unit\n"
- " WARNING: Unsaved environment variables will be lost!"
-);
-#endif
projects / platform / kernel / u-boot.git / commitdiff