starfive-tech/u-boot.git/drivers/power/Kconfig, branch master

power: Add a POWER config

2021-09-04T16:26:02+00:00

At present we have SPL_POWER but not piain POWER. This works because there is a special build rule in Makefile that always includes the drivers/power directory. It is better to have all driver directories included by drivers/Makefile and there is already a rule in there for this purpose. It just needs a Kconfig for U-Boot proper, so add one. Update the pmic.h header file so that it defines the old pmic struct always, when driver model is not in use. That will avoid build errors for boards which enable POWER but not DM_PMIC. Enable this option always. That seems strange at first sight, but it actually but mimics the current Makefile behaviour. Once we can drop the old PMICs it should be easy enough to rename DM_PMIC to POWWER, or something similar. Signed-off-by: Simon Glass

i2c: Convert CONFIG_POWER_I2C et al to Kconfig

2021-09-04T16:26:02+00:00

This converts the following to Kconfig: CONFIG_POWER_I2C CONFIG_POWER_LEGACY They are handled at the same time due to a dependency between them. Update the Makefile rule to use legacy power only in U-Boot proper. Unfortunately a separate rule is needed in SPL to be able to build legacy power. Add SPL related symbols for both, to allow for SPL-only usage. Signed-off-by: Simon Glass Reviewed-by: Jaehoon Chung [trini: More SPL related cleanups, reword commit message] Signed-off-by: Tom Rini

Kconfig: Remove all default n/no options

2021-08-31T21:47:49+00:00

default n/no doesn't need to be specified. It is default option anyway. Signed-off-by: Michal Simek [trini: Rework FSP_USE_UPD portion] Signed-off-by: Tom Rini

sunxi: Add support for H616 SoC

2021-01-25T21:52:01+00:00

H616 is very similar to H6 so most of the infrastructure can be reused. However, two big differences are that it doesn't have functional SRAM A2 which is usually used for TF-A and it doesn't have ARISC co-processor. It also needs bigger SPL size - 48 KiB. Signed-off-by: Jernej Skrabec Reviewed-by: Andre Przywara Signed-off-by: Andre Przywara

sunxi: Add support for AXP305 PMIC

2021-01-25T21:52:00+00:00

This PMIC can be found on H616 boards and it's very similar to AXP805 and AXP806. Signed-off-by: Jernej Skrabec Reviewed-by: Andre Przywara Reviewed-by: Jaehoon Chung Signed-off-by: Andre Przywara

sunxi: allow to use AXP20[39] attached to I2C0 on V3 series

2020-11-17T00:42:21+00:00

The reference design of Allwinner V3 series uses an AXP203 or AXP209 PMIC attached to the I2C0 bus of the SoC, although the first community-available V3s board, Lichee Pi Zero, omitted it. Allow to introduce support for the PMIC on boards with it. Signed-off-by: Icenowy Zheng Reviewed-by: Jagan Teki

poweroff: add poweroff for mt6323 pmic

2020-01-10T15:25:13+00:00

this adds poweroff to bananapi r2 / mt7623 / mt6323 pmic Signed-off-by: Frank Wunderlich

x86: power: Add an ACPI PMC uclass

2019-12-15T03:44:10+00:00

Intel x86 SoCs have a power manager/controller which handles several power-related aspects of the platform. Add a uclass for this, with a few useful operations. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

power: axp209: Limit inrush current for broken boards

2018-12-07T16:54:33+00:00

Some boards feature a capacitance on LDO3's output that is too large, causing inrush currents which as a result, shut down the AXP209. This has been reported before, without knowing the actual cause. A fix appeared to be done with commit 0e6e34ac8dbb ("sunxi: Olimex A20 boards: Enable LDO3 and LDO4 regulators"). The description there is a bit misleading, the kernel does not hang during AXP209 initialization, the PMIC shuts down, causing voltages to drop and thus the whole system freezes. While the AXP209 does have the ability to ramp up the voltage slowly, to reduce these inrush currents, the voltage rate control (VRC) however is not applicable when switching on the LDO3 output. Only when going from an enabled lower voltage setting, to a higher voltage setting is the VRC in effect. To work around this problem, we set LDO3 to the lowest possible setting of 0.7 V if it was not yet enabled, and then let the VRC (if enabled) do its thing. It should be noted, that for some undocumented reason, there is a short delay needed between setting the LDO3 voltage register and enabling the power. One would expect that this delay ought to be just after enabling the output power at 0.7 V, but this did not work. Signed-off-by: Olliver Schinagl Signed-off-by: Priit Laes Acked-by: Maxime Ripard

power: axp209: Add support for voltage rate control on LDO3

2018-12-07T16:54:33+00:00

The AXP209 LDO3 regulator supports voltage rate control, or can set a slew rate. This allows for the power to gradually rise up to the desired voltage, instead of spiking up as fast as possible. Reason to have this can be to reduce the inrush currents for example. There are 3 slopes to choose from, the default, 'none' is a voltage rise of 0.0167 V/uS, a 1.6 mV/uS and a 0.8 mV/uS voltage rise. In ideal world (where vendors follow the recommended design guidelines) this setting should not be enabled by default. Unless of course AXP209 crashes instead of reporting overcurrent condition as it normally should do in this case. Signed-off-by: Olliver Schinagl Signed-off-by: Priit Laes Acked-by: Maxime Ripard