]> git.sur5r.net Git - u-boot/commit
ARM: DRA7: Add support for manual mode configuration
authorLokesh Vutla <lokeshvutla@ti.com>
Thu, 4 Jun 2015 11:12:37 +0000 (16:42 +0530)
committerTom Rini <trini@konsulko.com>
Fri, 12 Jun 2015 17:02:05 +0000 (13:02 -0400)
commit71bed1855ff1f0b9702ecedd1ece486ebc915779
tree3cf6417069442248c69d0f22a39593581d249d64
parenteda6fbcc8c715a48c6b19541fed684efa3c49dbb
ARM: DRA7: Add support for manual mode configuration

In addition to the regular mux configuration, certain pins of DRA7
require to have "manual mode" also programmed, when predefined
delay characteristics cannot be used for the interface.

struct iodelay_cfg_entry is introduced for populating
manual mode IO timings.
For configuring manual mode, along with the normal pad
configuration do the following steps:
- Select MODESELECT field of each assocaited PAD.
  CTRL_CORE_PAD_XXX[8]:MODESELECT = 1(Enable MANUAL_MODE macro along with mux)
- Populate A_DELAY, G_DELAY values that are specified in DATA MANUAL.
  And pass the offset of the CFG_XXX register in iodelay_cfg_entry.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
arch/arm/cpu/armv7/omap5/dra7xx_iodelay.c
arch/arm/include/asm/arch-omap5/dra7xx_iodelay.h
arch/arm/include/asm/arch-omap5/mux_dra7xx.h
arch/arm/include/asm/arch-omap5/sys_proto.h