u-boot-brain/arch/arm/cpu
Akshay Saraswat aacdd79095 Exynos5420: Remove code for enabling read leveling
This patch intends to remove all code which enables hardware read
leveling. All characterization environments may not cope up with
h/w read leveling enabled, so we must disable this.
Also, disabling h/w read leveling improves the MIF LVcc value
(LVcc value is the value at which DDR will fail to work properly).
Improving LVcc means we have enough voltage margin for MIF.
When h/w leveling is enabled, we have almost zero volatge margin.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2014-06-13 17:05:13 +09:00
..
arm720t Merge branch 'u-boot-tegra/master' into 'u-boot-arm/master' 2014-05-15 17:19:45 +02:00
arm920t arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
arm926ejs ARM: at91sam9m10g45ek: enable mci0 support 2014-05-27 00:10:54 +02:00
arm946es arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
arm1136 arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
arm1176 arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
arm_intcm arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
armv7 Exynos5420: Remove code for enabling read leveling 2014-06-13 17:05:13 +09:00
armv8 arm64: zero cntvoff_el2 2014-06-09 10:24:02 +02:00
at91-common ARM: atmel: switch to main crystal osc for SPL boot 2014-05-27 00:10:40 +02:00
pxa arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
sa1100 arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
tegra20-common Merge branch 'u-boot/master' 2014-05-09 11:50:14 +02:00
tegra30-common ARM: tegra: Tegra30 pinmux cleanup 2014-04-17 08:41:05 -07:00
tegra114-common ARM: tegra: Tegra114 pinmux cleanup 2014-04-17 08:41:06 -07:00
tegra124-common ARM: tegra: Tegra124 pinmux cleanup 2014-04-17 08:41:06 -07:00
tegra-common ARM: tegra: add function to enable input clamping on tristate 2014-05-13 10:41:31 -07:00
Makefile kbuild: use boolean macros to select tegra*-common directory 2014-04-17 17:44:35 -04:00
u-boot-spl.lds arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00
u-boot.lds arm: move exception handling out of start.S files 2014-05-15 16:24:53 +02:00