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mb/google/ocelot: Update EC host command range for variants

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This patch updates the EC host command range configuration for Ocelot
board variants, ensuring that each variant uses the correct range based
on its specific EC.

BOARD_GOOGLE_OCELOTMCHP and BOARD_GOOGLE_OCELOTMCHP4ES uses Microchip
EC.
BOARD_GOOGLE_OCELOT and BOARD_GOOGLE_OCELOT4ES uses Nuvoton EC.
BOARD_GOOGLE_OCELOTITE and BOARD_GOOGLE_OCELOTITE4ES uses ITE EC.

Key changes:
- Microchip EC: Configured to use host command ranges 0x800-0x807 and
0x200-0x20f. The register is set to 0x00040801 to accommodate these
constraints.

BUG=b:394208231
TEST=Build Ocelot and verify it compiles without any error.

Change-Id: If08f2362a7b3bafca69375ce3b346f75435a83df
Signed-off-by: P, Usha <usha.p@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88179
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
P, Usha 2025-06-24 10:49:50 +05:30 • committed by Matt DeVillier
commit faf0f29f8d
1 changed files with 2 additions and 1 deletions
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3
src/mainboard/google/ocelot/variants/baseboard/ocelot/devicetree.cb
View file

@ -8,7 +8,8 @@ chip soc/intel/pantherlake
# EC host command ranges are in 0x800-0x807 & 0x200-0x20f
# For Ocelot variants with ITE/Nuvoton EC:
# EC host command ranges are in 0x800-0x8ff & 0x200-0x20f
register "gen1_dec" = "CONFIG(BOARD_GOOGLE_OCELOT)? 0x00040801 : 0x00fc0801"
register "gen1_dec" = "CONFIG(BOARD_GOOGLE_OCELOTMCHP) ||
CONFIG(BOARD_GOOGLE_OCELOTMCHP4ES)? 0x00040801 : 0x00fc0801"
register "gen2_dec" = "0x000c0201"
# EC memory map range is 0x900-0x9ff
register "gen3_dec" = "0x00fc0901"