From: ben@simtec.co.uk (Ben Dooks) Date: Wed, 21 Jul 2010 01:36:55 +0100 Subject: [PATCH v3 1/7] ARM: S5PV210: Add a Kconfig entry "S5PC110_EVT0_WORKAROUND" In-Reply-To: <1279517483-22751-2-git-send-email-myungjoo.ham@samsung.com> References: <1279517483-22751-1-git-send-email-myungjoo.ham@samsung.com> <1279517483-22751-2-git-send-email-myungjoo.ham@samsung.com> Message-ID: <4C464127.5040405@simtec.co.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > Signed-off-by: Kyungmin Park > --- > 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? -- Ben Dooks, Design & Software Engineer, Simtec Electronics http://www.simtec.co.uk/