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74 lines
2.9 KiB
ReStructuredText
74 lines
2.9 KiB
ReStructuredText
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.. _rb_bmc_gecko:
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========================
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Gecko BMC register block
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========================
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The Gecko BMC register block has a header with type 0x0000C141, version 0x00000100, and contains control registers for the Silicom Gecko BMC.
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.. table::
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======== ============= ====== ====== ====== ====== =============
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Address Field 31..24 23..16 15..8 7..0 Reset value
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======== ============= ====== ====== ====== ====== =============
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RBB+0x00 Type Vendor ID Type RO 0x0000C141
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-------- ------------- -------------- -------------- -------------
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RBB+0x04 Version Major Minor Patch Meta RO 0x00000100
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-------- ------------- ------ ------ ------ ------ -------------
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RBB+0x08 Next pointer Pointer to next register block RO -
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-------- ------------- ------------------------------ -------------
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RBB+0x0C Status Status Read data RO 0x00000000
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-------- ------------- -------------- -------------- -------------
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RBB+0x10 Data Write data RW 0x00000000
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-------- ------------- ------------------------------ -------------
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RBB+0x14 Command Command RW 0x00000000
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======== ============= ============== ============== =============
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See :ref:`rb_overview` for definitions of the standard register block header fields.
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.. object:: Status
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The status field provides status information and the read data from the BMC.
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.. table::
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======== ====== ====== ====== ====== =============
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Address 31..24 23..16 15..8 7..0 Reset value
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======== ====== ====== ====== ====== =============
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RBB+0x0C Status Read data RO 0x00000000
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======== ============== ============== =============
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.. table::
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=== ========
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Bit Function
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=== ========
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16 Done
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18 Timeout
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19 Idle
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=== ========
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.. object:: Data
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The data field provides the write data to the BMC.
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.. table::
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======== ====== ====== ====== ====== =============
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Address 31..24 23..16 15..8 7..0 Reset value
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======== ====== ====== ====== ====== =============
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RBB+0x10 Write data RW 0x00000000
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======== ============================== =============
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.. object:: Command
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The command field provides the command to the BMC. Writing to the command field triggers an SPI transfer to the BMC.
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.. table::
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======== ====== ====== ====== ====== =============
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Address 31..24 23..16 15..8 7..0 Reset value
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======== ====== ====== ====== ====== =============
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RBB+0x14 Command RW 0x00000000
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======== ============== ============== =============
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