On Wed, Jul 21, 2010 at 9:36 AM, Ben Dooks <ben@xxxxxxxxxxxx> wrote: > On 07/19/10 06:31, MyungJoo Ham wrote: >> >> Early S5PC110 (EVT0) chip had some issues required workaround from a >> kernel. We can add such workaround codes with this Kconfig entry. >> >> Signed-off-by: MyungJoo Ham<myungjoo.ham@xxxxxxxxxxx> >> Signed-off-by: Kyungmin Park<kyungmin.park@xxxxxxxxxxx> >> --- >> arch/arm/mach-s5pv210/Kconfig | 7 +++++++ >> 1 files changed, 7 insertions(+), 0 deletions(-) >> >> diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig >> index 631019a..18802e7 100644 >> --- a/arch/arm/mach-s5pv210/Kconfig >> +++ b/arch/arm/mach-s5pv210/Kconfig >> @@ -101,4 +101,11 @@ config MACH_SMDKC110 >> Machine support for Samsung SMDKC110 >> S5PC110(MCP) is one of package option of S5PV210 >> >> +config S5PC110_EVT0_WORKAROUND >> + bool "S5PC110 Early Chip Workaround (EVT0)" >> + help >> + Early S5PC110 (so called EVT0) has errata items that should be >> + addressed; otherwise the kernel may panic or be locked up. >> Enable >> + this option to execute workaround instructions. >> + >> endif > > What happens for non EVT0, is the a performance issue or is it exclusive? > This S5PC110_EVT0_WORKAROUND addresses issues (erratic behaviors, not performance issues) of "EVT-0" revisions, which is exclusive for these EVT-0 only. They do not apply to the later (EVT-1 and so on) chips. -- MyungJoo Ham (함명주), Ph.D. Mobile Software Platform Lab, Digital Media and Communications (DMC) Business Samsung Electronics cell: 82-10-6714-2858 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |