[PATCH 2/2] ARM: Exynos4: use s5p-timer for UniversalC210 board

[Kukjin Kim]

Kukjin Kim wrote:
> 
> Kyungmin Park wrote:
> >
> > Hi,
> >
> > It's required for boot universal c210 w/ EVT0 chip.
> > Can you include it at 3.1 fixed branch?
> >
> Sure, will apply into samsung-fixes for 3.1.

Unfortunately, it happens boot failure with this patch on other EXYNOS4210
boards and it is due to HAVE_SCHED_CLOCK.

> > > +       select HAVE_SCHED_CLOCK

I think, we need to sort out the method...

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

> 
> > Thank you,
> > Kyungmin Park
> >
> > On Tue, Jul 26, 2011 at 2:50 PM, Marek Szyprowski
> > <m.szyprowski at samsung.com> wrote:
> > > Commit 069d4e743 removed support for local timers and forced to use
MCT
> as
> > > event source. However MCT is not operating properly on early revision
(EVT0)
> > > of Exynos4 SoCs. All UniversalC210 boards are based on Exynos4 EVT0,
so
> > that
> > > commit broke support for it. This patch provides a workaround that
enables
> > > UniversalC210 boards to boot again. s5p-timer is used as an event
source.
> > >
> > > Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> > > Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> > > ---
> > >  arch/arm/mach-exynos4/Kconfig               |    3 +++
> > >  arch/arm/mach-exynos4/mach-universal_c210.c |    4 +++-
> > >  2 files changed, 6 insertions(+), 1 deletions(-)
> > >
> > > diff --git a/arch/arm/mach-exynos4/Kconfig
b/arch/arm/mach-exynos4/Kconfig
> > > index 9d62e13..2aad73f 100644
> > > --- a/arch/arm/mach-exynos4/Kconfig
> > > +++ b/arch/arm/mach-exynos4/Kconfig
> > > @@ -173,6 +173,9 @@ config MACH_ARMLEX4210
> > >  config MACH_UNIVERSAL_C210
> > >        bool "Mobile UNIVERSAL_C210 Board"
> > >        select CPU_EXYNOS4210
> > > +       select S5P_HRT
> > > +       select CLKSRC_MMIO
> > > +       select HAVE_SCHED_CLOCK
> > >        select S5P_GPIO_INT
> > >        select S5P_DEV_FIMC0
> > >        select S5P_DEV_FIMC1
> > > diff --git a/arch/arm/mach-exynos4/mach-universal_c210.c
b/arch/arm/mach-
> > exynos4/mach-universal_c210.c
> > > index 0e280d1..ca9e7b7 100644
> > > --- a/arch/arm/mach-exynos4/mach-universal_c210.c
> > > +++ b/arch/arm/mach-exynos4/mach-universal_c210.c
> > > @@ -34,6 +34,7 @@
> > >  #include <plat/mfc.h>
> > >  #include <plat/sdhci.h>
> > >  #include <plat/pd.h>
> > > +#include <plat/s5p-time.h>
> > >
> > >  #include <mach/map.h>
> > >
> > > @@ -730,6 +731,7 @@ static void __init universal_map_io(void)
> > >        s5p_init_io(NULL, 0, S5P_VA_CHIPID);
> > >        s3c24xx_init_clocks(24000000);
> > >        s3c24xx_init_uarts(universal_uartcfgs,
ARRAY_SIZE(universal_uartcfgs));
> > > +       s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
> > >  }
> > >
> > >  static void __init universal_reserve(void)
> > > @@ -766,6 +768,6 @@ MACHINE_START(UNIVERSAL_C210,
> > "UNIVERSAL_C210")
> > >        .init_irq       = exynos4_init_irq,
> > >        .map_io         = universal_map_io,
> > >        .init_machine   = universal_machine_init,
> > > -       .timer          = &exynos4_timer,
> > > +       .timer          = &s5p_timer,
> > >        .reserve        = &universal_reserve,
> > >  MACHINE_END
> > > --
> > > 1.7.1.569.g6f426
> > >
> > > --
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