[U-Boot] [PATCH 3/4] arm, davinci: Add function lpsc_syncreset()
Heiko Schocher
hs at denx.de
Thu Oct 13 07:42:34 CEST 2011
Hello Christian,
Christian Riesch wrote:
> This patch adds a function lpsc_syncreset that allows setting a
> lpsc module into Sync Reset state.
>
> Signed-off-by: Christian Riesch <christian.riesch at omicron.at>
> Cc: Heiko Schocher <hs at denx.de>
> Cc: Paulraj Sandeep <s-paulraj at ti.com>
> Cc: Albert ARIBAUD <albert.u.boot at aribaud.net>
> ---
> arch/arm/cpu/arm926ejs/davinci/psc.c | 20 +++++++++++++++-----
> arch/arm/include/asm/arch-davinci/hardware.h | 1 +
> 2 files changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/cpu/arm926ejs/davinci/psc.c b/arch/arm/cpu/arm926ejs/davinci/psc.c
> index 486adb0..e02d1f6 100644
> --- a/arch/arm/cpu/arm926ejs/davinci/psc.c
> +++ b/arch/arm/cpu/arm926ejs/davinci/psc.c
> @@ -46,7 +46,7 @@
> */
>
> /* Works on Always On power domain only (no PD argument) */
> -void lpsc_on(unsigned int id)
> +static void lpsc_transition(unsigned int id, unsigned int state)
> {
> dv_reg_p mdstat, mdctl, ptstat, ptcmd;
> #ifdef CONFIG_SOC_DA8XX
> @@ -83,10 +83,10 @@ void lpsc_on(unsigned int id)
> while (readl(ptstat) & 0x01)
> continue;
>
> - if ((readl(mdstat) & 0x3f) == 0x03)
> - return; /* Already on and enabled */
> + if ((readl(mdstat) & 0x3f) == state)
> + return; /* Already in that state */
>
> - writel(readl(mdctl) | 0x03, mdctl);
> + writel((readl(mdctl) & ~0x1f) | state, mdctl);
^
Shouldn't this be ~0x3f ? And we should use a define
instead 0x3f ...
bye,
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
More information about the U-Boot
mailing list