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@@ -1,805 +0,0 @@
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-/*
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- * (C) Copyright 2005
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- * Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.de
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- *
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- * (C) Copyright 2005
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- * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
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- *
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- * SPDX-License-Identifier: GPL-2.0+
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- */
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-
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-#include <common.h>
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-#include <command.h>
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-
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-/*
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- * BC3450 specific commands
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- */
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-#if defined(CONFIG_CMD_BSP)
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-
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-/*
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- * Definitions for DS1620 chip
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- */
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-#define THERM_START_CONVERT 0xee
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-#define THERM_RESET 0xaf
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-#define THERM_READ_CONFIG 0xac
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-#define THERM_READ_TEMP 0xaa
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-#define THERM_READ_TL 0xa2
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-#define THERM_READ_TH 0xa1
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-#define THERM_WRITE_CONFIG 0x0c
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-#define THERM_WRITE_TL 0x02
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-#define THERM_WRITE_TH 0x01
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-
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-#define CONFIG_SYS_1SHOT 1
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-#define CONFIG_SYS_STANDALONE 0
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-
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-struct therm {
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- int hi;
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- int lo;
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-};
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-
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-/*
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- * SM501 Register
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- */
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-#define SM501_GPIO_CTRL_LOW 0x00000008UL /* gpio pins 0..31 */
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-#define SM501_GPIO_CTRL_HIGH 0x0000000CUL /* gpio pins 32..63 */
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-#define SM501_POWER_MODE0_GATE 0x00000040UL
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-#define SM501_POWER_MODE1_GATE 0x00000048UL
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-#define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
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-#define SM501_GPIO_DATA_LOW 0x00010000UL
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-#define SM501_GPIO_DATA_HIGH 0x00010004UL
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-#define SM501_GPIO_DATA_DIR_LOW 0x00010008UL
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-#define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
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-#define SM501_PANEL_DISPLAY_CONTROL 0x00080000UL
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-#define SM501_CRT_DISPLAY_CONTROL 0x00080200UL
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-
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-/* SM501 CRT Display Control Bits */
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-#define SM501_CDC_SEL (1 << 9)
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-#define SM501_CDC_TE (1 << 8)
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-#define SM501_CDC_E (1 << 2)
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-
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-/* SM501 Panel Display Control Bits */
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-#define SM501_PDC_FPEN (1 << 27)
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-#define SM501_PDC_BIAS (1 << 26)
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-#define SM501_PDC_DATA (1 << 25)
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-#define SM501_PDC_VDDEN (1 << 24)
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-
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-/* SM501 GPIO Data LOW Bits */
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-#define SM501_GPIO24 0x01000000
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-#define SM501_GPIO25 0x02000000
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-#define SM501_GPIO26 0x04000000
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-#define SM501_GPIO27 0x08000000
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-#define SM501_GPIO28 0x10000000
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-#define SM501_GPIO29 0x20000000
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-#define SM501_GPIO30 0x40000000
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-#define SM501_GPIO31 0x80000000
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-
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-/* SM501 GPIO Data HIGH Bits */
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-#define SM501_GPIO46 0x00004000
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-#define SM501_GPIO47 0x00008000
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-#define SM501_GPIO48 0x00010000
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-#define SM501_GPIO49 0x00020000
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-#define SM501_GPIO50 0x00040000
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-#define SM501_GPIO51 0x00080000
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-
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-/* BC3450 GPIOs @ SM501 Data LOW */
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-#define DIP (SM501_GPIO24 | SM501_GPIO25 | SM501_GPIO26 | SM501_GPIO27)
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-#define DS1620_DQ SM501_GPIO29 /* I/O */
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-#define DS1620_CLK SM501_GPIO30 /* High active O/P */
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-#define DS1620_RES SM501_GPIO31 /* Low active O/P */
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-/* BC3450 GPIOs @ SM501 Data HIGH */
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-#define BUZZER SM501_GPIO47 /* Low active O/P */
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-#define DS1620_TLOW SM501_GPIO48 /* High active I/P */
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-#define PWR_OFF SM501_GPIO49 /* Low active O/P */
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-#define FP_DATA_TRI SM501_GPIO50 /* High active O/P */
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-
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-
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-/*
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- * Initialise GPIO on SM501
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- *
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- * This function may be called from several other functions.
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- * Yet, the initialisation sequence is executed only the first
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- * time the function is called.
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- */
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-int sm501_gpio_init (void)
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-{
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- static int init_done = 0;
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-
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- if (init_done) {
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- debug("sm501_gpio_init: nothing to be done.\n");
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- return 1;
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- }
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-
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- /* enable SM501 GPIO control (in both power modes) */
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- *(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE0_GATE) |=
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- POWER_MODE_GATE_GPIO_PWM_I2C;
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- *(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE1_GATE) |=
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- POWER_MODE_GATE_GPIO_PWM_I2C;
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-
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- /* set up default O/Ps */
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
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- ~(DS1620_RES | DS1620_CLK);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_DQ;
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
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- ~(FP_DATA_TRI);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
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- (BUZZER | PWR_OFF);
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-
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- /* configure directions for SM501 GPIO pins */
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_LOW) &= ~(0xFF << 24);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_HIGH) &=
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- ~(0x3F << 14);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &=
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- ~(DIP | DS1620_DQ);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |=
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- (DS1620_RES | DS1620_CLK);
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) &=
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- ~DS1620_TLOW;
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) |=
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- (PWR_OFF | BUZZER | FP_DATA_TRI);
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-
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- init_done = 1;
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- debug("sm501_gpio_init: done.\n");
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-
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- return 0;
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-}
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-
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-
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-/*
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- * dip - read Config Inputs
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- *
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- * read and prints the dip switch
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- * and/or external config inputs (4bits) 0...0x0F
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- */
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-int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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-{
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- vu_long rc = 0;
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-
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- sm501_gpio_init ();
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-
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- /* read dip switch */
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- rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
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- rc = ~rc;
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- rc &= DIP;
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- rc = (int) (rc >> 24);
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-
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- /* plausibility check */
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- if (rc > 0x0F)
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- return -1;
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-
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- printf ("0x%lx\n", rc);
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- return 0;
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-}
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-
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-U_BOOT_CMD (dip, 1, 1, cmd_dip,
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- "read dip switch and config inputs",
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- "\n"
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- " - prints the state of the dip switch and/or\n"
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- " external configuration inputs as hex value.\n"
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- " - \"Config 1\" is the LSB");
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-
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-
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-/*
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- * buz - turns Buzzer on/off
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- */
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-#ifdef CONFIG_BC3450_BUZZER
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-static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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-{
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- if (argc != 2) {
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- printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
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- return 1;
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- }
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-
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- sm501_gpio_init ();
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-
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- if (strncmp (argv[1], "on", 2) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
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- ~(BUZZER);
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- return 0;
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- } else if (strncmp (argv[1], "off", 3) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
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- BUZZER;
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- return 0;
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- }
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- printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
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- return 1;
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-}
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-
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-U_BOOT_CMD (buz, 2, 1, cmd_buz,
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- "turns buzzer on/off",
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- "\n" "buz <on/off>\n" " - turns the buzzer on or off");
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-#endif /* CONFIG_BC3450_BUZZER */
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-
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-
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-/*
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- * fp - front panel commands
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- */
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-static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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-{
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- sm501_gpio_init ();
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-
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- if (strncmp (argv[1], "on", 2) == 0) {
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- /* turn on VDD first */
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_VDDEN;
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- udelay (1000);
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- /* then put data on */
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_DATA;
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- /* wait some time and enable backlight */
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- udelay (1000);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_BIAS;
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- udelay (1000);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_FPEN;
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- return 0;
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- } else if (strncmp (argv[1], "off", 3) == 0) {
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- /* turn off the backlight first */
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_FPEN;
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- udelay (1000);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_BIAS;
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- udelay (200000);
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- /* wait some time, then remove data */
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_DATA;
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- udelay (1000);
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- /* and remove VDD last */
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &=
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- ~SM501_PDC_VDDEN;
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- return 0;
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- } else if (strncmp (argv[1], "bl", 2) == 0) {
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- /* turn on/off backlight only */
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- if (strncmp (argv[2], "on", 2) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |=
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- SM501_PDC_BIAS;
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- udelay (1000);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) |=
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- SM501_PDC_FPEN;
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- return 0;
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- } else if (strncmp (argv[2], "off", 3) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &=
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- ~SM501_PDC_FPEN;
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- udelay (1000);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_PANEL_DISPLAY_CONTROL) &=
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- ~SM501_PDC_BIAS;
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- return 0;
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- }
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- }
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-#ifdef CONFIG_BC3450_CRT
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- else if (strncmp (argv[1], "crt", 3) == 0) {
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- /* enables/disables the crt output (debug only) */
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- if (strncmp (argv[2], "on", 2) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_CRT_DISPLAY_CONTROL) |=
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- (SM501_CDC_TE | SM501_CDC_E);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_CRT_DISPLAY_CONTROL) &=
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- ~SM501_CDC_SEL;
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- return 0;
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- } else if (strncmp (argv[2], "off", 3) == 0) {
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_CRT_DISPLAY_CONTROL) &=
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- ~(SM501_CDC_TE | SM501_CDC_E);
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- *(vu_long *) (SM501_MMIO_BASE +
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- SM501_CRT_DISPLAY_CONTROL) |=
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- SM501_CDC_SEL;
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- return 0;
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- }
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- }
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-#endif /* CONFIG_BC3450_CRT */
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- printf ("Usage:%s\n", cmdtp->help);
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- return 1;
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-}
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-
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-U_BOOT_CMD (fp, 3, 1, cmd_fp,
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- "front panes access functions",
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- "\n"
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- "fp bl <on/off>\n"
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- " - turns the CCFL backlight of the display on/off\n"
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- "fp <on/off>\n" " - turns the whole display on/off"
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-#ifdef CONFIG_BC3450_CRT
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- "\n"
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- "fp crt <on/off>\n"
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- " - enables/disables the crt output (debug only)"
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-#endif /* CONFIG_BC3450_CRT */
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- );
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-
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-/*
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- * temp - DS1620 thermometer
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- */
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-/* GERSYS BC3450 specific functions */
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-static inline void bc_ds1620_set_clk (int clk)
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-{
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- if (clk)
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
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- DS1620_CLK;
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- else
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
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- ~DS1620_CLK;
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-}
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-
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-static inline void bc_ds1620_set_data (int dat)
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-{
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- if (dat)
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
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- DS1620_DQ;
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- else
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
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- ~DS1620_DQ;
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-}
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-
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-static inline int bc_ds1620_get_data (void)
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-{
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- vu_long rc;
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-
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- rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
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- rc &= DS1620_DQ;
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- if (rc != 0)
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- rc = 1;
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- return (int) rc;
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-}
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-
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-static inline void bc_ds1620_set_data_dir (int dir)
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-{
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- if (dir) /* in */
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &= ~DS1620_DQ;
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- else /* out */
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |= DS1620_DQ;
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-}
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-
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-static inline void bc_ds1620_set_reset (int res)
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-{
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- if (res)
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_RES;
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- else
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- *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &= ~DS1620_RES;
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-}
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-
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-/* hardware independent functions */
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-static void ds1620_send_bits (int nr, int value)
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-{
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- int i;
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-
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- for (i = 0; i < nr; i++) {
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- bc_ds1620_set_data (value & 1);
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- bc_ds1620_set_clk (0);
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- udelay (1);
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- bc_ds1620_set_clk (1);
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- 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
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- "test can\n"
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- " - connect CAN1 (X8) with CAN2 (X9) for this test\n"
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-#endif /* CONFIG_BC3450_CAN */
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- "test unit-off\n"
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- " - turns off the BC3450 unit\n"
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- " WARNING: Unsaved environment variables will be lost!"
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-);
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-#endif
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Masahiro Yamada