This patch enables ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR as default configs
to EP93XX platforms from Cirrus.
Introduction of PHYS_VIRT config as default config enables phy-to-virt and
virt-to-phy translation functions at boot and module loading time, and enforce
dynamic reallocation of memory. PHYS_VIRT config is mutually exclusive to
XIP_KERNEL, XIP_KERNEL is used in systems with NOR flash devices.
AUTO_ZRELADDR config enables auto calculation of the decompressed kernel image
address. AUTO_ZRELADDR config is mutually exclusive to ZBOOT_ROM, and also
assumes zImage to be loaded in the first 128MiB from start of memory.
CFT::Call For Testing
Requesting maintainers of EP93XX platform to evaluate the changes on the
board and comment, as I dont have the board for testing and also requesting
an ACK.
Signed-off-by: panchaxari <[email protected]>
Cc: Hartley Sweeten <[email protected]>
Cc: Ryan Mallon <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Russell King <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
Below lkml link is a quoting by Russell which explains more on concept of
PHYS_VIRT and ZRELADDR
-------------------------------------------------
https://lkml.org/lkml/2011/10/14/434
-------------------------------------------------
---
arch/arm/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3501362..077ef9d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -420,10 +420,12 @@ config ARCH_EBSA110
config ARCH_EP93XX
bool "EP93xx-based"
select ARCH_HAS_HOLES_MEMORYMODEL
+ select ARCH_PATCH_PHYS_VIRT
select ARCH_REQUIRE_GPIOLIB
select ARCH_USES_GETTIMEOFFSET
select ARM_AMBA
select ARM_VIC
+ select AUTO_ZRELADDR
select CLKDEV_LOOKUP
select CPU_ARM920T
select NEED_MACH_MEMORY_H
--
1.7.10.4
On Thu, Jan 09, 2014 at 02:49:24PM +0530, panchaxari wrote:
> This patch enables ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR as default configs
> to EP93XX platforms from Cirrus.
NAK.
--
FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation
in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad.
Estimate before purchase was "up to 13.2Mbit".