The series adds the support for hardware leveling. This needs the kernel to be patched with hardware leveling support and the kernel support is already in linux-next:
https://patchwork.kernel.org/project/linux-omap/list/?series=100273
Match recommended values from EMIF Tools app note: http://www.ti.com/lit/an/sprac70/sprac70.pdf
The patch series is tested for AM437x-gp-evm DS0 and RTC+DRR mode on linux-next in kernel.
Changes in v2:
* Fixed am335x build issue.
Tested on AM437x-gp-evm for rtc+ddr mode and DS0 Tested on am335x-evm and beaglebone black for DS0 and rtcwake from DS0 Compile tested omap3 and omap4 defconfigs as well.
Brad Griffis (6): arm: mach-omap2: am33xx: ddr: programming of EXT_PHY_CTRL1 and EXT_PHY_CTRL1_SHADOW arm: mach-omap2: am33xx: ddr: Add 1ms delay to avoid L3 error arm: mach-omap2: am33xx: Enable HW Leveling in the rtc+ddr path arm: mach-omap2: am33xx: ddr: update value for ext_phy_ctrl_36 board: ti: am43xx: Enable hardware leveling arm: mach-omap2: am33xx: Disable EMIF_DEVOFF immediately before hw leveling
arch/arm/mach-omap2/am33xx/board.c | 31 +++++++++++++++++++++++++--- arch/arm/mach-omap2/am33xx/ddr.c | 33 ++++++++++++++++++++++++++---- board/ti/am43xx/board.c | 2 +- 3 files changed, 58 insertions(+), 8 deletions(-)