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author | Paul Kocialkowski <contact@paulk.fr> | 2015-07-20 15:17:17 +0200 |
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committer | Tom Rini <trini@konsulko.com> | 2015-08-12 20:47:39 -0400 |
commit | 0e14f88957459aec113b75032ff9364c81dab864 (patch) | |
tree | fbb5226d8d68379da891455a0ed2a6ffc1a0fe6a /board/lge/sniper/sniper.c | |
parent | 69f25415eda1f3bded57f46347021f6652776076 (diff) | |
download | u-boot-imx-0e14f88957459aec113b75032ff9364c81dab864.zip u-boot-imx-0e14f88957459aec113b75032ff9364c81dab864.tar.gz u-boot-imx-0e14f88957459aec113b75032ff9364c81dab864.tar.bz2 |
sniper: Power off when the power on reason is not a valid one
In most cases, userspace will attempt to power off the device with HALT instead
of POWER_OFF, which triggers a reset instead of a proper power off from the
TWL4030. Hence, it is up to the bootloader to actually turn the device off when
there is no reason to turn it on.
A reboot identified with the OMAP reboot mode bits set is acceptable, as well as
a power on reason from either the power button, USB or charger plug.
Other cases should trigger a power off. Note that for the U-Boot reset command
to take effect, we have to fill-in the OMAP reboot bits.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'board/lge/sniper/sniper.c')
-rw-r--r-- | board/lge/sniper/sniper.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/board/lge/sniper/sniper.c b/board/lge/sniper/sniper.c index 97c2ed0..c94a3fa 100644 --- a/board/lge/sniper/sniper.c +++ b/board/lge/sniper/sniper.c @@ -94,6 +94,7 @@ int misc_init_r(void) char serial_string[17] = { 0 }; char reboot_mode[2] = { 0 }; u32 dieid[4] = { 0 }; + unsigned char data = 0; /* Power button reset init */ @@ -107,6 +108,18 @@ int misc_init_r(void) setenv("reboot-mode", (char *)reboot_mode); omap_reboot_mode_clear(); + } else { + /* + * When not rebooting, valid power on reasons are either the + * power button, charger plug or USB plug. + */ + + data |= twl4030_input_power_button(); + data |= twl4030_input_charger(); + data |= twl4030_input_usb(); + + if (!data) + twl4030_power_off(); } /* Serial number */ @@ -145,6 +158,11 @@ void get_board_serial(struct tag_serialnr *serialnr) } } +void reset_misc(void) +{ + omap_reboot_mode_store('u'); +} + int fb_set_reboot_flag(void) { return omap_reboot_mode_store('b'); |