This change adds a document about the SoundWire implementation in coreboot with details adding new controllers and codecs and connecting them in the mainboard devicetree. BUG=b:146482091 Signed-off-by: Duncan Laurie <dlaurie@google.com> Change-Id: Ibc04442e22acfc03ff86c49c8a7a215ceefc24c7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40892 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
		
			
				
	
	
		
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| # Platform independent drivers documentation
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| 
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| The drivers can be found in `src/drivers`. They are intended for onboard
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| and plugin devices, significantly reducing integration complexity and
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| they allow to easily reuse existing code accross platforms.
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| 
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| * [IPMI KCS](ipmi_kcs.md)
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| * [SMMSTORE](smmstore.md)
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| * [SoundWire](soundwire.md)
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