Re: [U-Boot] [PATCH] OMAP3: pandora: enable battery backup capacitor
> > CCing Sandeep. > > On Thu, Apr 29, 2010 at 5:52 PM, Grazvydas Ignotas > wrote: > > Pandora has a capacitor connected as backup battery, which allows > > retaining RTC for some time while main battery is removed. Enable backup > > battery charge function to charge that capacitor. > > > > Signed-off-by: Grazvydas Ignotas > > --- > > board/pandora/pandora.c | 9 + > > 1 files changed, 9 insertions(+), 0 deletions(-) > > I have pushed this to u-boot-ti/master. This will be part of my next pull request to Tom Thanks, Sandeep ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] [PATCH] OMAP3: pandora: enable battery backup capacitor
CCing Sandeep. On Thu, Apr 29, 2010 at 5:52 PM, Grazvydas Ignotas wrote: > Pandora has a capacitor connected as backup battery, which allows > retaining RTC for some time while main battery is removed. Enable backup > battery charge function to charge that capacitor. > > Signed-off-by: Grazvydas Ignotas > --- > board/pandora/pandora.c | 9 + > 1 files changed, 9 insertions(+), 0 deletions(-) > > diff --git a/board/pandora/pandora.c b/board/pandora/pandora.c > index 75e4330..355e9ea 100644 > --- a/board/pandora/pandora.c > +++ b/board/pandora/pandora.c > @@ -37,6 +37,10 @@ > #include > #include "pandora.h" > > +#define TWL4030_BB_CFG_BBCHEN (1 << 4) > +#define TWL4030_BB_CFG_BBSEL_3200MV (3 << 2) > +#define TWL4030_BB_CFG_BBISEL_500UA 2 > + > /* > * Routine: board_init > * Description: Early hardware init. > @@ -78,6 +82,11 @@ int misc_init_r(void) > writel(GPIO28, &gpio5_base->setdataout); > writel(GPIO4, &gpio6_base->setdataout); > > + /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */ > + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, > + TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV | > + TWL4030_BB_CFG_BBISEL_500UA, TWL4030_PM_RECEIVER_BB_CFG); > + > dieid_num_r(); > > return 0; > -- > 1.6.3.3 > > ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] [PATCH] OMAP3: pandora: enable battery backup capacitor
Pandora has a capacitor connected as backup battery, which allows retaining RTC for some time while main battery is removed. Enable backup battery charge function to charge that capacitor. Signed-off-by: Grazvydas Ignotas --- board/pandora/pandora.c |9 + 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/board/pandora/pandora.c b/board/pandora/pandora.c index 75e4330..355e9ea 100644 --- a/board/pandora/pandora.c +++ b/board/pandora/pandora.c @@ -37,6 +37,10 @@ #include #include "pandora.h" +#define TWL4030_BB_CFG_BBCHEN (1 << 4) +#define TWL4030_BB_CFG_BBSEL_3200MV(3 << 2) +#define TWL4030_BB_CFG_BBISEL_500UA2 + /* * Routine: board_init * Description: Early hardware init. @@ -78,6 +82,11 @@ int misc_init_r(void) writel(GPIO28, &gpio5_base->setdataout); writel(GPIO4, &gpio6_base->setdataout); + /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */ + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, + TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV | + TWL4030_BB_CFG_BBISEL_500UA, TWL4030_PM_RECEIVER_BB_CFG); + dieid_num_r(); return 0; -- 1.6.3.3 ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
