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u-boot/arch/arm/include/asm
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SRICHARAN R 42d4f37b79 ARM: OMAP5: DDR3: Change io settings 
The change from 0x64656465 to 0x64646464 is to remove the weak pull
enabled on DQS, nDQS lines. This pulls the differential signals in the
same direction which is not intended. So disabling the weak pulls improves
signal integrity.

On the uEVM there are 4 DDR3 devices.  The VREF for 2 of the devices is powered by
the OMAP's VREF_CA_OUT pins.  The VREF on the other 2 devices is powered by the OMAP's
VREF_DQ_OUT pins.  So the net effect here is that only half of the DDR3 devices were being
supplied a VREF!  This was clearly a mistake.  The second change improves the robustness of
the interface and was specifically seen to cure corruption observed at high temperatures
on some boards.

With the above two changes better memory stability was observed with extended
temperature ranges around 100C.

Signed-off-by: Sricharan R <r.sricharan@ti.com>
2013-11-01 15:56:00 -04:00
..
arch-a320 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-am33xx am33xx, davinci: Create and use <asm/davinci_rtc.h> 2013-11-01 15:30:22 -04:00
arch-arm720t Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-armada100 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-armv7 Merge branch 'u-boot/master' into u-boot-arm/master 2013-07-25 17:57:46 +02:00
arch-at91 ARM: atmel: add RNDIS gadget support 2013-09-24 17:51:35 +02:00
arch-bcm2835 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-davinci am33xx, davinci: Create and use <asm/davinci_rtc.h> 2013-11-01 15:30:22 -04:00
arch-ep93xx Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-exynos Coding Style cleanup: remove trailing white space 2013-10-14 16:06:53 -04:00
arch-imx mxc: Define architecture identifier 2012-09-01 14:58:30 +02:00
arch-ixp Coding Style cleanup: remove trailing white space 2013-10-14 16:06:53 -04:00
arch-kirkwood Merge branch 'master' of git://git.denx.de/u-boot-i2c 2013-07-24 09:50:24 -04:00
arch-ks8695 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-lpc32xx Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-mb86r0x Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-mx5 usb: ehci-mx5: Use 'bool' instead of 'unsigned char' 2013-08-26 21:56:34 +02:00
arch-mx6 i.MX6DQ/DLS: Add pad MX6_PAD_GPIO_1__USB_OTG_ID 2013-09-27 13:53:35 +02:00
arch-mx25 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-mx27 mx27: add missing constant for mx27 2013-09-10 19:12:55 +02:00
arch-mx31 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-mx35 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-mxs ARM: mxs: Receive r0 and r1 passed from BootROM 2013-09-10 19:12:54 +02:00
arch-nomadik Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-omap3 Merge branch 'u-boot-ti/master' into 'u-boot-arm/master' 2013-09-04 14:06:56 +02:00
arch-omap4 ARM: omap4-panda: Add MAC address creation for panda 2013-10-14 16:06:53 -04:00
arch-omap5 ARM: OMAP5: DDR3: Change io settings 2013-11-01 15:56:00 -04:00
arch-orion5x Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-pantheon Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-pxa Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-rmobile Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-s3c24x0 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-s5pc1xx arm:mmc:goni/exynos: Fix wrong mmc base register devices offset. 2013-09-11 10:52:10 +09:00
arch-sa1100 Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
arch-socfpga socfpga: Adding System Manager driver 2013-10-07 19:32:21 +02:00
arch-spear Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-tegra Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-tegra20 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-tegra30 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-tegra114 ARM: Tegra: USB: EHCI: Add support for Tegra30/Tegra114 2013-07-11 14:15:15 -07:00
arch-tnetv107x Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-u8500 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
arch-vf610 Merge branch 'master' of git://git.denx.de/u-boot-i2c 2013-07-24 09:50:24 -04:00
arch-zynq Merge 'u-boot-microblaze/zynq' into (u-boot-arm/master' 2013-09-03 14:01:02 +02:00
imx-common dma: apbh: Add special circular mode for LCD 2013-08-09 21:48:34 +02:00
proc-armv Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
armv7.h ARM: extend non-secure switch to also go into HYP mode 2013-10-03 21:28:55 +02:00
assembler.h arm: Use optimized memcpy and memset from linux 2011-04-27 19:38:07 +02:00
atomic.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
bitops.h arm: add __ilog2 function 2011-07-16 13:00:11 +02:00
bootm.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
byteorder.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
cache.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
config.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
davinci_rtc.h am33xx, davinci: Create and use <asm/davinci_rtc.h> 2013-11-01 15:30:22 -04:00
dma-mapping.h arm: dma_alloc_coherent: malloc() -> memalign() 2013-09-14 12:08:00 +02:00
ehci-omap.h ARM: OMAP5: USB: Add OMAP5 common USB EHCI information 2013-08-26 21:55:46 +02:00
emif.h ARM: DRA7xx: EMIF: Change settings required for EVM board 2013-06-10 08:43:10 -04:00
errno.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
gic.h ARM: add SMP support for non-secure switch 2013-10-03 21:28:51 +02:00
global_data.h ARM: use r9 for gd 2013-09-23 18:00:02 +02:00
gpio.h gpio: Replace ARM gpio.h with the common API in include/asm-generic 2012-01-09 20:10:32 -06:00
hardware.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
io.h ARM: fix write*() I/O accessors 2011-02-21 08:30:55 +01:00
linkage.h arm: adapt asm/linkage.h from Linux 2012-05-15 08:31:26 +02:00
mach-types.h arm: Remove support for smdk6400 2013-04-12 07:55:08 +02:00
macro.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
memory.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
omap_boot.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
omap_common.h omap5: add qspi support 2013-10-07 17:55:50 +05:30
omap_gpio.h SPDX-License-Identifier: fixing some problematic GPL-2.0 files 2013-08-19 15:34:13 -04:00
omap_gpmc.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
omap_mmc.h omap_hsmmc: add driver check for write protection 2013-03-08 16:41:13 -05:00
omap_musb.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
pl310.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
posix_types.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
processor.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
ptrace.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
sections.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
setup.h arm bootm: Allow to pass board specified atags 2012-10-30 15:28:05 -07:00
sizes.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
spl.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
string.h arm: Use optimized memcpy and memset from linux 2011-04-27 19:38:07 +02:00
system.h ARM: mmu: Set domain permissions to client access 2013-03-28 09:10:58 +01:00
types.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
u-boot-arm.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
u-boot.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
unaligned.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
utils.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00