omap: Update and rename common defconfig for omap2plus devices

This patch addresses below things

- Renaming existing omap3_defconfig which has OMAP2, OMAP3 and OMAP4 builds
  enabled to more appropriate name 'omap2plus_defconfig'
- L1 cache shift is suppose to be 5 on OMAP4 where as it is 6 on previous
  OMAPs. Keeping it to 5 is safer option for OMAP4 and previous OMAPs. For
  OMAP3 only build the shift would be still 6
- Enable needed Errata's for OMAP4 to work with DMA based device drivers
	CONFIG_PL310_ERRATA_588369=y
	CONFIG_ARM_ERRATA_720789=y
- Enable the Micrel ethernet controller
	CONFIG_KS8851=y
	CONFIG_KS8851_MLL=y

With above three changes, OMAP4 ethernet, mmc etc works reliably.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index b48bacf0a7aa..bb85f24c3643 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -35,7 +35,7 @@ config ARCH_OMAP3
         default y
         select CPU_V7
         select USB_ARCH_HAS_EHCI
-        select ARM_L1_CACHE_SHIFT_6
+        select ARM_L1_CACHE_SHIFT_6 if !ARCH_OMAP4
 
 config ARCH_OMAP4
         bool "TI OMAP4"
@@ -43,6 +43,8 @@ config ARCH_OMAP4
         depends on ARCH_OMAP2PLUS
         select CPU_V7
         select ARM_GIC
+        select PL310_ERRATA_588369
+        select ARM_ERRATA_720789
 
 comment "OMAP Core Type"
         depends on ARCH_OMAP2