Merge changes I93de2db1,I880f88b1,I02e2fc75,I48908413,Ie7de9a9f, ... into integration

* changes:
feat(st-ddr): add STM32MP2 driver
refactor(st-ddr): create generic services
refactor(st-ddr): r

Merge changes I93de2db1,I880f88b1,I02e2fc75,I48908413,Ie7de9a9f, ... into integration

* changes:
feat(st-ddr): add STM32MP2 driver
refactor(st-ddr): create generic services
refactor(st-ddr): remove name from stm32mp_ddr_reg_desc
refactor(st-ddr): add definition for timeouts and delays
feat(st): add stm32mp_is_wakeup_from_standby()
feat(stm32mp2): add RETRAM map/unmap capability
feat(stm32mp2): add helper to get DDRDBG base address
feat(stm32mp2): handle DDR power supplies
feat(stm32mp1): handle DDR power supplies

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feat(st-ddr): add STM32MP2 driver

Add driver to support DDR on STM32MP2 platform. It drives the DDR PHY
and its firmware, as well as the DDR controller.

Signed-off-by: Nicolas Le Bayon <nicolas.le.

feat(st-ddr): add STM32MP2 driver

Add driver to support DDR on STM32MP2 platform. It drives the DDR PHY
and its firmware, as well as the DDR controller.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Maxime Méré <maxime.mere@foss.st.com>
Change-Id: I93de2db1b9378d5654e76b3bf6f3407d80bc4ca5

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refactor(st-ddr): create generic services

Disabling AXI port, enabling host interface and both enabling/disabling
software self-refresh services are already present inside the driver
source code.
Fa

refactor(st-ddr): create generic services

Disabling AXI port, enabling host interface and both enabling/disabling
software self-refresh services are already present inside the driver
source code.
Factorize by gathering them as services inside the generic part,
and adapt driver to call these new functions.

Add services to manage quasi-dynamic registers. DDRCTRL contains
quasi-dynamic registers, which are dynamic only under some conditions
defined by the user guide (with 4 groups).
In our driver, out of reset state, only groups 3 and 4 are updated.
Group 4 needs only sw_done/sw_done_ack sequence, already available.
Group 3 sequence include more conditions, that are gathered in
specific services. stm32mp_ddr_disable_host_interface() has been added
to do this.

Add dedicated generic service to toggle rfshctl3.refresh_update_level
and wait for completion.

Manage AXI ports and HIF when updating QD3 registers. Quasi-dynamic
group 3 (QD3) registers are updated when DDR is not completely
initialized, i.e. when AXI ports are not enabled and possibly when
host interface (HIF) is not enabled too.
In that case, a specific mechanism is necessary to restore the same
conditions as before accessing QD3 registers.
Static functions have been added to get AXI ports and HIF states and
are used to determine the needed conditions to set/unset.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I880f88b1cb6fc76199ad9ea33e9d63a5c469aed4

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Merge changes from topic "st_ddr_updates" into integration

* changes:
refactor(st-ddr): move basic tests in a dedicated file
refactor(st-ddr): reorganize generic and specific elements
feat(stm

Merge changes from topic "st_ddr_updates" into integration

* changes:
refactor(st-ddr): move basic tests in a dedicated file
refactor(st-ddr): reorganize generic and specific elements
feat(stm32mp1): allow configuration of DDR AXI ports number
refactor(st-ddr): update parameter array initialization
feat(st-ddr): add read valid training support
refactor(stm32mp1): remove the support of calibration result
fix(st-ddr): correct DDR warnings

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refactor(st-ddr): reorganize generic and specific elements

stm32mp_ddrctl structure contains DDRCTRL registers definitions.
stm32mp_ddr_info contains general DDR information extracted from DT.
stm32

refactor(st-ddr): reorganize generic and specific elements

stm32mp_ddrctl structure contains DDRCTRL registers definitions.
stm32mp_ddr_info contains general DDR information extracted from DT.
stm32mp_ddr_size moves to the generic side.
stm32mp1_ddr_priv contains platform private data.

stm32mp_ddr_dt_get_info() and stm32mp_ddr_dt_get_param() allow to
retrieve data from DT. They are located in new generic c/h files in
which stm32mp_ddr_param structure is declared. Platform makefile
is updated.

Adapt driver with this new classification.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Change-Id: I4187376c9fff1a30e7a94407d188391547107997

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