[U-Boot] [PATCH 06/10] mx23_olinuxino: Add support for status LED

[Marek Vasut]

Dear Otavio Salvador,

> This allow user to know if the bootloader is running, even without a
> serial console.
> 
> Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>

Uh oh, how does this know which GPIO to toggle to drive the led this time ?

> ---
>  board/olimex/mx23_olinuxino/mx23_olinuxino.c |  7 +++++++
>  board/olimex/mx23_olinuxino/spl_boot.c       |  4 ++++
>  include/configs/mx23_olinuxino.h             | 12 ++++++++++++
>  3 files changed, 23 insertions(+)
> 
> diff --git a/board/olimex/mx23_olinuxino/mx23_olinuxino.c
> b/board/olimex/mx23_olinuxino/mx23_olinuxino.c index 6a6053b..2501417
> 100644
> --- a/board/olimex/mx23_olinuxino/mx23_olinuxino.c
> +++ b/board/olimex/mx23_olinuxino/mx23_olinuxino.c
> @@ -28,6 +28,9 @@
>  #include <asm/arch/imx-regs.h>
>  #include <asm/arch/clock.h>
>  #include <asm/arch/sys_proto.h>
> +#ifdef CONFIG_STATUS_LED
> +#include <status_led.h>
> +#endif
> 
>  DECLARE_GLOBAL_DATA_PTR;
> 
> @@ -67,5 +70,9 @@ int board_init(void)
>  	/* Adress of boot parameters */
>  	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
> 
> +#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
> +	status_led_set(STATUS_LED_BOOT, STATUS_LED_STATE);
> +#endif
> +
>  	return 0;
>  }
> diff --git a/board/olimex/mx23_olinuxino/spl_boot.c
> b/board/olimex/mx23_olinuxino/spl_boot.c index 7def8bc..3bbf5ad 100644
> --- a/board/olimex/mx23_olinuxino/spl_boot.c
> +++ b/board/olimex/mx23_olinuxino/spl_boot.c
> @@ -84,6 +84,10 @@ const iomux_cfg_t iomux_setup[] = {
>  	MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
>  	MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
> 
> +	/* Green LED */
> +	MX23_PAD_SSP1_DETECT__GPIO_2_1 |
> +		(MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL),
> +
>  	/* MMC 0 */
>  	MX23_PAD_SSP1_CMD__SSP1_CMD | MUX_CONFIG_SSP,
>  	MX23_PAD_SSP1_DATA0__SSP1_DATA0 | MUX_CONFIG_SSP,
> diff --git a/include/configs/mx23_olinuxino.h
> b/include/configs/mx23_olinuxino.h index 7983c5d..968aec8 100644
> --- a/include/configs/mx23_olinuxino.h
> +++ b/include/configs/mx23_olinuxino.h
> @@ -56,6 +56,7 @@
>  #define	CONFIG_CMD_EXT2
>  #define	CONFIG_CMD_FAT
>  #define	CONFIG_CMD_GPIO
> +#define	CONFIG_CMD_LED
>  #define	CONFIG_CMD_MMC
> 
>  /*
> @@ -112,6 +113,17 @@
>  #define	CONFIG_BAUDRATE			115200	/* Default baud rate */
> 
>  /*
> + * Status LED
> + */
> +#define	CONFIG_STATUS_LED
> +#define	CONFIG_GPIO_LED
> +#define	CONFIG_BOARD_SPECIFIC_LED
> +#define	STATUS_LED_BOOT	0
> +#define	STATUS_LED_BIT	10
> +#define	STATUS_LED_STATE	STATUS_LED_ON
> +#define	STATUS_LED_PERIOD	(CONFIG_SYS_HZ / 2)
> +
> +/*
>   * MMC Driver
>   */
>  #ifdef	CONFIG_CMD_MMC

Best regards,
Marek Vasut