add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/Documentation/ABI/testing/sysfs-devices-soc
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@@ -26,6 +26,37 @@
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 		Read-only attribute common to all SoCs. Contains SoC family name
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 		(e.g. DB8500).
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+		On many of ARM based silicon with SMCCC v1.2+ compliant firmware
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+		this will contain the JEDEC JEP106 manufacturer’s identification
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+		code. The format is "jep106:XXYY" where XX is identity code and
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+		YY is continuation code.
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+
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+		This manufacturer’s identification code is defined by one
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+		or more eight (8) bit fields, each consisting of seven (7)
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+		data bits plus one (1) odd parity bit. It is a single field,
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+		limiting the possible number of vendors to 126. To expand
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+		the maximum number of identification codes, a continuation
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+		scheme has been defined.
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+
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+		The specified mechanism is that an identity code of 0x7F
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+		represents the "continuation code" and implies the presence
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+		of an additional identity code field, and this mechanism
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+		may be extended to multiple continuation codes followed
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+		by the manufacturer's identity code.
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+
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+		For example, ARM has identity code 0x7F 0x7F 0x7F 0x7F 0x3B,
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+		which is code 0x3B on the fifth 'page'. This is shortened
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+		as JEP106 identity code of 0x3B and a continuation code of
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+		0x4 to represent the four continuation codes preceding the
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+		identity code.
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+
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+What:		/sys/devices/socX/serial_number
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+Date:		January 2019
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+contact:	Bjorn Andersson <bjorn.andersson@linaro.org>
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+Description:
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+		Read-only attribute supported by most SoCs. Contains the SoC's
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+		serial number, if available.
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+
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 What:		/sys/devices/socX/soc_id
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 Date:		January 2012
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 contact:	Lee Jones <lee.jones@linaro.org>
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@@ -33,6 +64,12 @@
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 		Read-only attribute supported by most SoCs. In the case of
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 		ST-Ericsson's chips this contains the SoC serial number.
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+		On many of ARM based silicon with SMCCC v1.2+ compliant firmware
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+		this will contain the SOC ID appended to the family attribute
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+		to ensure there is no conflict in this namespace across various
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+		vendors. The format is "jep106:XXYY:ZZZZ" where XX is identity
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+		code, YY is continuation code and ZZZZ is the SOC ID.
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+
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 What:		/sys/devices/socX/revision
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 Date:		January 2012
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 contact:	Lee Jones <lee.jones@linaro.org>