> -----Original Message----- > From: Michael Walle [mailto:mich...@walle.cc] > Sent: 01 August 2012 01:58 > To: Prafulla Wadaskar > Cc: u-boot@lists.denx.de > Subject: Re: [PATCH] lsxl: support power switch > > Am Dienstag 31 Juli 2012, 13:12:19 schrieb Prafulla Wadaskar: > > > -----Original Message----- > > > From: Michael Walle [mailto:mich...@walle.cc] > > > Sent: 31 July 2012 16:22 > > > To: Prafulla Wadaskar > > > Cc: Michael Walle; u-boot@lists.denx.de > > > Subject: RE: [PATCH] lsxl: support power switch > > > > > > On Tue, July 31, 2012 07:59, Prafulla Wadaskar wrote: > > > >> -----Original Message----- > > > >> From: Michael Walle [mailto:mich...@walle.cc] > > > >> Sent: 31 July 2012 02:17 > > > >> To: u-boot@lists.denx.de > > > >> Cc: Michael Walle; Prafulla Wadaskar > > > >> Subject: [PATCH] lsxl: support power switch > > > >> > > > >> This patch restores the Linkstation's original behaviour when > > > > > > powering > > > > > > >> off. > > > >> Once the (soft) power switch is turned off, linux will reboot > and > > > > > > the > > > > > > >> bootloader turns off HDD and USB power. Then it loops as long > as > > > > > > the > > > > > > >> switch > > > >> is in the off position, before continuing the boot process > again. > > > >> > > > >> Additionally, this patch fixes the board function > set_led(LED_OFF). > > > >> > > > >> Signed-off-by: Michael Walle <mich...@walle.cc> > > > >> Cc: Prafulla Wadaskar <prafu...@marvell.com> > > > >> --- > > > >> > > > >> board/buffalo/lsxl/lsxl.c | 22 +++++++++++++++++++++- > > > >> 1 files changed, 21 insertions(+), 1 deletions(-) > > > >> > > > >> diff --git a/board/buffalo/lsxl/lsxl.c > b/board/buffalo/lsxl/lsxl.c > > > >> index fe15511..b3f31d6 100644 > > > >> --- a/board/buffalo/lsxl/lsxl.c > > > >> +++ b/board/buffalo/lsxl/lsxl.c > > > >> @@ -158,7 +158,7 @@ static void set_led(int state) > > > >> > > > >> { > > > >> > > > >> switch (state) { > > > >> > > > >> case LED_OFF: > > > >> - __set_led(0, 0, 0, 0, 0, 0); > > > >> + __set_led(0, 0, 0, 1, 1, 1); > > > >> > > > >> break; > > > >> > > > >> case LED_ALARM_ON: > > > >> __set_led(0, 0, 0, 0, 1, 1); > > > >> > > > >> @@ -192,6 +192,25 @@ int board_init(void) > > > >> > > > >> } > > > >> > > > >> #ifdef CONFIG_MISC_INIT_R > > > >> > > > >> +static void check_power_switch(void) > > > >> +{ > > > >> + if (kw_gpio_get_value(GPIO_POWER_SWITCH)) { > > > >> + /* turn off HDD and USB power */ > > > >> + kw_gpio_set_value(GPIO_HDD_POWER, 0); > > > >> + kw_gpio_set_value(GPIO_USB_VBUS, 0); > > > >> + set_led(LED_OFF); > > > >> + > > > >> + /* loop until released */ > > > >> + while (kw_gpio_get_value(GPIO_POWER_SWITCH)) > > > >> + ; > > > > > > > > Please avoid infinite loop, may you introduce timeout? > > > > > > actually, thats the use case, to loop indefinitely ;) See the > commit > > > message. The GPIO is a switch not a button. As long as it is > switched > > > to > > > "Power Off" uboot should loop. > > > > Okay got it. > > Ack for this patch. > > ok thanks, can you apply it to your repository? >
Sure.. Regards... Prafulla . . . _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
