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13cfbe5135
For current U-Boot to initialize status LEDs via status_led_init(), it is required to have both CONFIG_STATUS_LED and STATUS_LED_BOOT defined. This may be a particular concern with GPIO LEDs, where __led_init() is required to correctly set up the GPIO (gpio_request and gpio_direction_output). Without STATUS_LED_BOOT the initialization isn't called, which could leave the user with a non-functional "led" command - due to the fact that the LED routines in gpio_led.c use gpio_set_value() just fine, but the GPIO never got set up properly in the first place. I think having CONFIG_STATUS_LED is sufficient to justify a corresponding call to status_led_init(), even with no STATUS_LED_BOOT defined. To do so, common/board_r.c needs call that routine, so it now is exposed via status_led.h. Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de> [trini: Add dummy __led_init to pca9551_led.c] Signed-off-by: Tom Rini <trini@konsulko.com>
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.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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* The purpose of this code is to signal the operational status of a
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* target which usually boots over the network; while running in
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* PCBoot, a status LED is blinking. As soon as a valid BOOTP reply
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* message has been received, the LED is turned off. The Linux
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* kernel, once it is running, will start blinking the LED again,
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* with another frequency.
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*/
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#ifndef _STATUS_LED_H_
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#define _STATUS_LED_H_
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#ifdef CONFIG_STATUS_LED
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#define STATUS_LED_OFF 0
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#define STATUS_LED_BLINKING 1
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#define STATUS_LED_ON 2
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void status_led_init(void);
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void status_led_tick (unsigned long timestamp);
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void status_led_set (int led, int state);
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/***** TQM8xxL ********************************************************/
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#if defined(CONFIG_TQM8xxL)
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# define STATUS_LED_PAR im_cpm.cp_pbpar
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# define STATUS_LED_DIR im_cpm.cp_pbdir
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# define STATUS_LED_ODR im_cpm.cp_pbodr
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# define STATUS_LED_DAT im_cpm.cp_pbdat
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# define STATUS_LED_BIT 0x00000001
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# define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
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# define STATUS_LED_STATE STATUS_LED_BLINKING
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# define STATUS_LED_ACTIVE 1 /* LED on for bit == 1 */
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# define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
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/***** MVS v1 **********************************************************/
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#elif (defined(CONFIG_MVS) && CONFIG_MVS < 2)
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# define STATUS_LED_PAR im_ioport.iop_pdpar
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# define STATUS_LED_DIR im_ioport.iop_pddir
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# undef STATUS_LED_ODR
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# define STATUS_LED_DAT im_ioport.iop_pddat
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# define STATUS_LED_BIT 0x00000001
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# define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
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# define STATUS_LED_STATE STATUS_LED_BLINKING
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# define STATUS_LED_ACTIVE 1 /* LED on for bit == 1 */
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# define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
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/***** Someone else defines these *************************************/
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#elif defined(STATUS_LED_PAR)
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/*
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* ADVICE: Define in your board configuration file rather than
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* filling this file up with lots of custom board stuff.
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*/
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#elif defined(CONFIG_V38B)
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# define STATUS_LED_BIT 0x0010 /* Timer7 GPIO */
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# define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
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# define STATUS_LED_STATE STATUS_LED_BLINKING
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# define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
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# define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
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#elif defined(CONFIG_MOTIONPRO)
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#define STATUS_LED_BIT ((vu_long *) MPC5XXX_GPT6_ENABLE)
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#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 10)
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#define STATUS_LED_STATE STATUS_LED_BLINKING
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#define STATUS_LED_BIT1 ((vu_long *) MPC5XXX_GPT7_ENABLE)
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#define STATUS_LED_PERIOD1 (CONFIG_SYS_HZ / 10)
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#define STATUS_LED_STATE1 STATUS_LED_OFF
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#define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
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#elif defined(CONFIG_BOARD_SPECIFIC_LED)
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/* led_id_t is unsigned long mask */
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typedef unsigned long led_id_t;
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extern void __led_toggle (led_id_t mask);
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extern void __led_init (led_id_t mask, int state);
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extern void __led_set (led_id_t mask, int state);
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void __led_blink(led_id_t mask, int freq);
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#else
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# error Status LED configuration missing
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#endif
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/************************************************************************/
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#ifndef CONFIG_BOARD_SPECIFIC_LED
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# include <asm/status_led.h>
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#endif
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#endif /* CONFIG_STATUS_LED */
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/*
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* Coloured LEDs API
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*/
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#ifndef __ASSEMBLY__
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void coloured_LED_init(void);
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void red_led_on(void);
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void red_led_off(void);
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void green_led_on(void);
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void green_led_off(void);
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void yellow_led_on(void);
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void yellow_led_off(void);
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void blue_led_on(void);
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void blue_led_off(void);
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#else
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.extern LED_init
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.extern red_led_on
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.extern red_led_off
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.extern yellow_led_on
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.extern yellow_led_off
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.extern green_led_on
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.extern green_led_off
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.extern blue_led_on
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.extern blue_led_off
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#endif
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#endif /* _STATUS_LED_H_ */
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