| Message ID | 1349765142-27872-2-git-send-email-p.wilczek@samsung.com |
|---|---|
| State | Accepted |
| Delegated to: | Minkyu Kang |
| Headers | show |
Hi Piotr, On Tue, 09 Oct 2012 08:45:42 +0200, Piotr Wilczek <p.wilczek@samsung.com> wrote: > This patch turns power down for unused core 1 > > Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > CC: Minkyu Kang <mk7.kang@samsung.com> > --- > board/samsung/trats/trats.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c > index 57400ce..d5c681c 100644 > --- a/board/samsung/trats/trats.c > +++ b/board/samsung/trats/trats.c > @@ -321,6 +321,10 @@ static void board_power_init(void) > writel(0, (unsigned int)&pwr->lcd1_configuration); > writel(0, (unsigned int)&pwr->gps_configuration); > writel(0, (unsigned int)&pwr->gps_alive_configuration); > + > + /* It is necessary to power down core 1 */ > + /* to successfully boot CPU1 in kernel */ > + writel(0, (unsigned int)&pwr->arm_core1_configuration); > } > > static void board_uart_init(void) Cc:ing trats maintainer. Amicalement,
FYI: Piotr and Lukasz are working together for samsung board. Minkyu, can you pick up this patch? Thank you, Kyungmin Park > -----Original Message----- > From: Albert ARIBAUD [mailto:albert.u.boot@aribaud.net] > Sent: Wednesday, October 10, 2012 2:07 AM > To: Piotr Wilczek > Cc: u-boot@lists.denx.de; Kyungmin Park; Lukasz Majewski > Subject: Re: [U-Boot] [PATCH] arm: trats: Power down core 1 > > Hi Piotr, > > On Tue, 09 Oct 2012 08:45:42 +0200, Piotr Wilczek <p.wilczek@samsung.com> > wrote: > > > This patch turns power down for unused core 1 > > > > Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> > > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > > CC: Minkyu Kang <mk7.kang@samsung.com> > > --- > > board/samsung/trats/trats.c | 4 ++++ > > 1 files changed, 4 insertions(+), 0 deletions(-) > > > > diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c > > index 57400ce..d5c681c 100644 > > --- a/board/samsung/trats/trats.c > > +++ b/board/samsung/trats/trats.c > > @@ -321,6 +321,10 @@ static void board_power_init(void) > > writel(0, (unsigned int)&pwr->lcd1_configuration); > > writel(0, (unsigned int)&pwr->gps_configuration); > > writel(0, (unsigned int)&pwr->gps_alive_configuration); > > + > > + /* It is necessary to power down core 1 */ > > + /* to successfully boot CPU1 in kernel */ > > + writel(0, (unsigned int)&pwr->arm_core1_configuration); > > } > > > > static void board_uart_init(void) > > Cc:ing trats maintainer. > > Amicalement, > -- > Albert.
Dear Piotr Wilczek, On 9 October 2012 15:45, Piotr Wilczek <p.wilczek@samsung.com> wrote: > This patch turns power down for unused core 1 > > Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > CC: Minkyu Kang <mk7.kang@samsung.com> > --- > board/samsung/trats/trats.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > applied to u-boot-samsung. Thanks. Minkyu Kang.
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c index 57400ce..d5c681c 100644 --- a/board/samsung/trats/trats.c +++ b/board/samsung/trats/trats.c @@ -321,6 +321,10 @@ static void board_power_init(void) writel(0, (unsigned int)&pwr->lcd1_configuration); writel(0, (unsigned int)&pwr->gps_configuration); writel(0, (unsigned int)&pwr->gps_alive_configuration); + + /* It is necessary to power down core 1 */ + /* to successfully boot CPU1 in kernel */ + writel(0, (unsigned int)&pwr->arm_core1_configuration); } static void board_uart_init(void)