Commit graph

7 commits

Author SHA1 Message Date
Albert ARIBAUD
cac423a730 Merge branch 'u-boot-ti/master' into 'u-boot-arm/master' 2013-05-11 22:24:28 +02:00
Lokesh Vutla
0b1b60c779 ARM: OMAP5: Fix warm reset with USB cable connected
Warm reset on OMAP5 freezes when USB cable is connected.
Fix requires PRM_RSTTIME.RSTTIME1 to be programmed
with the time for which reset should be held low for the
voltages and the oscillator to reach stable state.

There are 3 parameters to be considered for calculating
the time, which are mostly board and PMIC dependent.
-1- Time taken by the Oscillator to shut + restart
-2- PMIC OTP times
-3- Voltage rail ramp times, which inturn depends on the
PMIC slew rate and value of the voltage ramp needed.

In order to keep the code in u-boot simple, have a way
for boards to specify a pre computed time directly using
the 'CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC'
option. If boards fail to specify the time, use a default
as specified by 'CONFIG_DEFAULT_OMAP_RESET_TIME_MAX_USEC' instead.
Using the default value translates into some ~22ms and should work in
all cases.
However in order to avoid this large delay hiding other bugs,
its recommended that all boards look at their respective data
sheets and specify a pre computed and optimal value using
'CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC'

In order to help future board additions to compute this
config option value, add a README at doc/README.omap-reset-time
which explains how to compute the value. Also update the toplevel
README with the additional option and pointers to
doc/README.omap-reset-time.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[rnayak@ti.com: Updated changelog and added the README]
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
2013-05-10 08:25:55 -04:00
Nishanth Menon
cb199102b0 twl6035: rename to palmas
TPS659038/TWL6035/TWL6037 all belong to palmas family of TI PMICs
Rename twl6035 to palmas to allow reuse across multiple current and
future platforms

As part of this change, change the CONFIG_TWL6035_POWER to
CONFIG_PALMAS_POWER and update usage of header file accordingly.

Signed-off-by: Nishanth Menon <nm@ti.com>
2013-05-10 08:25:54 -04:00
Tom Rini
63216de134 omap5_uevm: Enable redundant MMC environment
Cc: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
2013-05-01 16:41:10 -04:00
Tom Rini
a519602d95 omap5_uevm: Correct to 2MiB aligned partitions on eMMC
This has a 2MiB erase block size eMMC, so make sure we align on that for
best possible performance.

Signed-off-by: Tom Rini <trini@ti.com>
2013-04-10 15:10:10 -04:00
Tom Rini
9552ee3ea9 omap5_uevm.h: Move uEVM-specific choices to omap5_uevm.h
The omap5_uevm platform has eMMC, and it makes sense to say that our
default env storage shall reside there.  Other platforms may not, so
move this choice to the EVM config.  In addition, we should provide some
way to partition the flash for later usage, so take advantage of the GPT
partition table support code and allow that to be setup with some
reasonable defaults.

Cc: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
2013-04-08 11:40:56 -04:00
SRICHARAN R
2c2a9f3a1f ARM: OMAP5: Rename omap5_evm to omap5_uevm
The omap5-uevm is the reference board name for OMAP5 soc
based platform. So rename it accordingly.

Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
2013-04-08 11:29:05 -04:00
Renamed from include/configs/omap5_evm.h (Browse further)