mb/google/rex: Enable all DDI lanes
This patch enables all DDI ports on Rex board to support display port tunneling and dual display on TBT dock. BUG=b:273901499 TEST=Boot google/rex and connect two displays over a TBT dock and check the display functionality. Signed-off-by: Anil Kumar <anil.kumar.k@intel.com> Change-Id: I45ee5334fbb877bd58912c8d24920037f155dc42 Reviewed-on: https://review.coreboot.org/c/coreboot/+/74413 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Kapil Porwal <kapilporwal@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -67,6 +67,10 @@ chip soc/intel/meteorlake
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register "ddi_ports_config" = "{
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[DDI_PORT_A] = DDI_ENABLE_HPD,
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[DDI_PORT_B] = DDI_ENABLE_HPD | DDI_ENABLE_DDC,
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[DDI_PORT_1] = DDI_ENABLE_HPD,
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[DDI_PORT_2] = DDI_ENABLE_HPD,
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[DDI_PORT_3] = DDI_ENABLE_HPD,
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[DDI_PORT_4] = DDI_ENABLE_HPD,
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}"
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register "serial_io_gspi_mode" = "{
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