Introduce timing patch which converts 2 GiB DRAM timings to 4 GiB 1-rank
timings. This is a new configuration which carries IS43LQ32K01B DRAM part.
The 512 MiB SoM strapping that was never used is repurposed for this part.

Signed-off-by: Marek Vasut <marex@nabladev.com>

The 2 GiB and 4 GiB 2-rank DRAM timings on i.MX8MP DHCOM are very
similar. Instead of carrying around two copies of almost identical
timing tables, implement a patch of the 2 GiB table to convert it
into 4 GiB 2-rank table and pass the result to DRAM initialization
code. This saves us 13640 Bytes in SPL, and frees up space for more
DRAM initialization tables.

Signed-off-by: Marek Vasut <marex@nabladev.com>

The DRAM size tables are shared by SPL and U-Boot proper, deduplicate
those tables into lpddr4_timing.h . No functional change.

Signed-off-by: Marek Vasut <marex@nabladev.com>

The inline ECC configuration is identical for 2 GiB DRAM variants
and 4 GiB DRAM variants of the SoM, no matter the rank count. Fold
the ECC configuration directly into spl.c to simplify the upcoming
deduplication. No functional change.

Signed-off-by: Marek Vasut <marex@nabladev.com>

Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and
drop the unnecessary inclusion of asm/global_data.h.

Headers should be included directly by the files that need them,
rather than indirectly via global_data.h.

Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> #STMicroelectronics boards and STM32MP1 ram test driver
Tested-by: Anshul Dalal <anshuld@ti.com> #TI boards
Acked-by: Yao Zi <me@ziyao.cc> #TH1520
Signed-off-by: Peng Fan <peng.fan@nxp.com>

Use plain CONFIG_STM32MP15X to discern code which is specific to
STM32MP15xx in DH STM32MP1 DHSOM board files.

Signed-off-by: Marek Vasut <marex@nabladev.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

Commit c37a6684818d ("stm32mp: fix compilation issue with DEBUG_UART")
split the debug UART initialization code into two files, but failed to
update other non-ST boards. This did not lead to noticeable breakage
until debug UART is enabled, which is not the default. Update the
Makefile accordingly to allow debug UART to work.

Fixes: c37a6684818d ("stm32mp: fix compilation issue with DEBUG_UART")
Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

Add DRAM settings for 1 GiB variant of DH STM32MP13xx DHCOR SoM
and support for SoM DRAM coding HW straps decoding and automatic
DRAM configuration selection. Enable CONFIG_BOARD_EARLY_INIT_F on
all STM32MP1 DHSOM, as it is required for the HW straps decoding.

Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

Add support for reading out the MAC address from SoC fuses on DH STM32MP1 DHSOM.
The DH STM32MP1 DHSOM may contain external ethernet MACs, which benefit from the
MAC address stored in SoC fuses as well, handle those consistently. This however
means the architecture setup_mac_address() cannot be used and instead a simpler
local fuse read out is implemented in the board file.

Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

The STM32MP13xx DHCOR SoM is populated with M24256 EEPROM that contains
an additional write-lockable page called ID page, which is populated with
a structure containing ethernet MAC addresses, DH item number and DH serial
number.

Read out the MAC address from the WL page between higher priority SoC fuses
and lower priority plain EEPROM storage area. Read out the DH item and serial
numbers and set environment variables accordingly.

Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>