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arm64: dts: renesas: Switch to upstream DT on Renesas R-Car X5H R8A78000

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Enable OF_UPSTREAM to use upstream Linux kernel DT source as a base
for U-Boot control DT. Retain currently present parts of the DT which
are not yet part of upstream Linux kernel DT in -u-boot.dtsi files
until they get replaced by upstream equivalents. Add renesas/ prefix
to the DEFAULT_DEVICE_TREE as part of the switch.

Unused i2c2..i2c8 nodes have been removed, and will become available
once upstream Linux kernel DT adds those nodes.

The DRAM_RSV_SIZE has been updated to cover first 518 MiB of DRAM,
which are reserved for firmware and other use.

Note that all DT parts in -u-boot.dtsi are not considered stable DT
bindings and may change before they land in Linux kernel and become
stable DT ABI.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Marek Vasut
2026-05-07 19:37:48 +02:00
parent 744cf5d4e3
commit d77f8443c7
7 changed files with 501 additions and 1521 deletions
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2
include/configs/rcar-gen5-common.h
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@@ -12,7 +12,7 @@
#define CFG_SYS_BAUDRATE_TABLE { 38400, 115200, 921600, 1843200, 3250000 }
/* Memory */
#define DRAM_RSV_SIZE 0x08000000
#define DRAM_RSV_SIZE 0x20600000
#define CFG_SYS_SDRAM_BASE (0x40000000 + DRAM_RSV_SIZE)
#define CFG_SYS_SDRAM_SIZE (0x80000000u - DRAM_RSV_SIZE)
#define CFG_MAX_MEM_MAPPED (0x80000000u - DRAM_RSV_SIZE)