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| author | Egli, Samuel <samuel.egli@siemens.com> | 2014-04-24 17:57:54 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-05-13 19:43:00 -0400 |
| commit | 111c8e40934ca8dfc0c7faf7eeb836a823098f0f (patch) | |
| tree | 29256f0f2567386c66d6e0340e234770b592fd2b /board | |
| parent | 823b2c4ce4b54b658b45055bbc4c79f15789d48c (diff) | |
| download | u-boot-imx-111c8e40934ca8dfc0c7faf7eeb836a823098f0f.zip u-boot-imx-111c8e40934ca8dfc0c7faf7eeb836a823098f0f.tar.gz u-boot-imx-111c8e40934ca8dfc0c7faf7eeb836a823098f0f.tar.bz2 | |
siemens: add led cmd for flexible LED control
* remove setting LED in user button function.
We want to decouple reading user button and setting LED. This
two things need to be done independently.
* led cmd can be used to control LEDs that are defined in board file
having a led cmd, one can easily set LEDs in u-boot shell. For
example bootcmd can be extended to disable status LED before
loading kernel.
Signed-off-by: Samuel Egli <samuel.egli@siemens.com>
Cc: Roger Meier <r.meier@siemens.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board')
| -rw-r--r-- | board/siemens/common/board.c | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c index 7e8731b..2782bcc 100644 --- a/board/siemens/common/board.c +++ b/board/siemens/common/board.c @@ -128,12 +128,6 @@ do_userbutton(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) button = 0; gpio_free(gpio); - if (!button) { - /* LED0 - RED=1: GPIO2_0 2*32 = 64 */ - gpio_request(BOARD_DFU_BUTTON_LED, ""); - gpio_direction_output(BOARD_DFU_BUTTON_LED, 1); - gpio_set_value(BOARD_DFU_BUTTON_LED, 1); - } return button; } @@ -144,6 +138,46 @@ U_BOOT_CMD( "" ); #endif +/* + * This command sets led + * Input - name of led + * value of led + * Returns - 1 if input does not match + * 0 if led was set + */ +static int +do_setled(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int gpio = 0; + if (argc != 3) + goto exit; +#if defined(BOARD_STATUS_LED) + if (!strcmp(argv[1], "stat")) + gpio = BOARD_STATUS_LED; +#endif +#if defined(BOARD_DFU_BUTTON_LED) + if (!strcmp(argv[1], "dfu")) + gpio = BOARD_DFU_BUTTON_LED; +#endif + /* If argument does not mach exit */ + if (gpio == 0) + goto exit; + gpio_request(gpio, ""); + gpio_direction_output(gpio, 1); + if (!strcmp(argv[2], "1")) + gpio_set_value(gpio, 1); + else + gpio_set_value(gpio, 0); + return 0; +exit: + return 1; +} + +U_BOOT_CMD( + led, CONFIG_SYS_MAXARGS, 2, do_setled, + "Set led on or off", + "dfu val - set dfu led\nled stat val - set status led" +); static int do_usertestwdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |