| 0459bc30 | 05-Aug-2017 |
Nishanth Menon <nm@ti.com> |
ARM: OMAP5: Enable support for AVS0 for OMAP5 production devices
OMAP5432 did go into production with AVS class0 registers which were
mutually exclusive from AVS Class 1.5 registers.
Most OMAP5-uEV
ARM: OMAP5: Enable support for AVS0 for OMAP5 production devices
OMAP5432 did go into production with AVS class0 registers which were
mutually exclusive from AVS Class 1.5 registers.
Most OMAP5-uEVM boards use the pre-production Class1.5 which has
production efuse registers set to 0. However on production devices,
these are set to valid data.
scale_vcore logic is already smart enough to detect this and use the
"Nominal voltage" on devices that do not have efuse registers populated.
On a test production device populated as follows:
MPU OPP_NOM:
=> md.l 0x04A0021C4 1
4a0021c4: 03a003e9 ....
(0x3e9 = 1.01v) vs nom voltage of 1.06v
MPU OPP_HIGH:
=> md.l 0x04A0021C8 1
4a0021c8: 03400485 ..@.
MM OPP_NOM:
=> md.l 0x04A0021A4 1
4a0021a4: 038003d4 ....
(0x3d4 = 980mV) vs nom voltage of 1.025v
MM OPP_OD:
=> md.l 0x04A0021A8 1
4a0021a8: 03600403 ..`.
CORE OPP_NOM:
=> md.l 0x04A0021D8 1
4a0021d8: 000003cf ....
(0x3cf = 975mV) vs nom voltage of 1.040v
Since the efuse values are'nt currently used, we do not regress on
existing pre-production samples (they continue to use nominal voltage).
But on boards that do have production samples populated, we can leverage
the optimal voltages necessary for proper operation.
Tested on:
a) 720-2644-001 OMAP5UEVM with production sample.
b) 750-2628-222(A) UEVM5432G-02 with pre-production sample.
Data based on OMAP5432 Technical reference Manual SWPU282AF (May
2012-Revised Aug 2016)
NOTE: All collaterals on OMAP5432 silicon itself seems to have been
removed from ti.com, though EVM details are still available:
http://www.ti.com/tool/OMAP5432-EVM
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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| f56e6350 | 23-Nov-2016 |
Keerthy <j-keerthy@ti.com> |
board: ti: dra71x-evm: Add PMIC support
Add the pmic_data for LP873x PMIC which is used to power
up dra71x-evm.
Note: As per the DM[1] DRA71x supports only OP_NOM. So, updating
the efuse registers
board: ti: dra71x-evm: Add PMIC support
Add the pmic_data for LP873x PMIC which is used to power
up dra71x-evm.
Note: As per the DM[1] DRA71x supports only OP_NOM. So, updating
the efuse registers only to use OPP_NOM irrespective of any
CONFIG_DRA7_<VOLT>_OPP_{NOM,od,high} is defined.
[1] http://www.ti.com/product/DRA718/technicaldocuments
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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| 88730f19 | 23-May-2016 |
Anna, Suman <s-anna@ti.com> |
ARM: DRA7: Add macros for voltage values for all OPPs
Define specific macros for the voltage values for all voltage
domains for all applicable OPPs - OPP_NOM, OPP_OD and OPP_HIGH.
No separate macros
ARM: DRA7: Add macros for voltage values for all OPPs
Define specific macros for the voltage values for all voltage
domains for all applicable OPPs - OPP_NOM, OPP_OD and OPP_HIGH.
No separate macros are defined for VD_MPU and VD_CORE at OPP_OD
and OPP_HIGH as these use the same values as OPP_NOM.
The current macros will be used as common macros that can be
redefined appropriately based on a selected OPP configuration
at build time.
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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| e42523f5 | 23-May-2016 |
Anna, Suman <s-anna@ti.com> |
ARM: DRA7: Consolidate voltage macros across different SoCs
The voltage values for each voltage domain at an OPP is identical
across all the SoCs in the DRA7 family. The current code defines
one set
ARM: DRA7: Consolidate voltage macros across different SoCs
The voltage values for each voltage domain at an OPP is identical
across all the SoCs in the DRA7 family. The current code defines
one set of macros for DRA75x/DRA74x SoCs and another set for DRA72x
macros. Consolidate both these sets into a single set.
This is done so as to minimize the number of macros used when voltage
values will be added for other OPPs as well.
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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| 27c9596f | 23-May-2016 |
Anna, Suman <s-anna@ti.com> |
ARM: DRA7: Define common macros for efuse register offsets
Define a set of common macros for the efuse register offsets
(different for each OPP) that are used to get the AVS Class 0
voltage values a
ARM: DRA7: Define common macros for efuse register offsets
Define a set of common macros for the efuse register offsets
(different for each OPP) that are used to get the AVS Class 0
voltage values and ABB configuration values. Assign these
common macros to the register offsets for OPP_NOM by default
for all voltage domains. These common macros can then be
redefined properly to point to the OPP specific efuse register
offset based on the desired OPP to program a specific voltage
domain.
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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| e52e334e | 21-Apr-2016 |
Nishanth Menon <nm@ti.com> |
ARM: DRA7: Add ABB setup for all domains
ABB should be initialized for all required domains voltage domain
for DRA7: IVA, GPU, EVE in addition to the existing MPU domain. If
we do not do this, kerne
ARM: DRA7: Add ABB setup for all domains
ABB should be initialized for all required domains voltage domain
for DRA7: IVA, GPU, EVE in addition to the existing MPU domain. If
we do not do this, kernel configuring just the frequency using the
default boot loader configured voltage can fail on many corner lot
units and has been hard to debug. This specifically is a concern with
DRA7 generation of SoCs since other than VDD_MPU, all other domains
are only permitted to setup the voltages to required OPP only at boot.
Reported-by: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
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