The AXP803 has been around for about a decade now, but so far we didn't
need SPL support, since the DRAM rail was wired up correctly at reset.
Now some boards using the A133 SoC use the (compatible) AXP707 with DDR4
memory, which requires the SPL to set the required 1.1V voltage manually.
Add the descriptions for the DC/DC regulators of the AXP803, and enable
that when CONFIG_AXP803_POWER is enabled.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
The generic AXP SPL driver implementation can cover all regulators we
need for the AXP305.
Add the descriptions for four of the six DC/DC regulators of the AXP305,
and enable that when CONFIG_AXP305_POWER is enabled. We won't need DCDC2
and DCDC3, but by using the position in the array for the index we keep
the code cleaner.
Also remove the old driver, and switch the Makefile to include the new,
generic driver.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The generic AXP SPL driver implementation can cover all regulators we
need for the AXP313.
Add the descriptions for the three DC/DC regulators of the AXP313, and
enable that when CONFIG_AXP313_POWER is enabled. Also remove the old
driver, and switch the Makefile to include the new, generic version.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
So far we had a separate driver file for each AXP PMIC chip that we need
to support in the SPL. The code in there was largely similar, but
differed in many details.
Based on the idea of the DM AXP driver, introduce a data structure to
describe each regulator in a compact way. This is a simplified version
of the struct used in the DM driver, as we don't need to support the full
voltage range and not every regulator in the SPL.
For now we only support the DC/DC buck converters, since that's what we
need the SPL to configure, mostly. Also we get rid of the regulator name,
and hardcode the regulator number by its position in the array (first is
DCDC1, second is DCDC2, etc). We also drop support for the value table,
we ideally won't need that for the subset of regulators required.
At the end each regulator is described by a 10 bytes struct, so we avoid
blowing up the SPL footprint, but still can use generic code.
Each chip is supposed to be described separately, and protected by
ifdef's, to only build in the regulators needed for a particular board.
We also describe the bits to help identifying the AXP chip, and the
shutdown details in that section.
Add a generic driver, that exports axp_set_dcdc<x>() functions to set up
the buck converters. For now this just contains the bits for the (new)
AXP717, but it's not wired up anywhere yet.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
