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Diffstat (limited to 'Documentation/Intel/SoC')
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1 files changed, 46 insertions, 1 deletions
diff --git a/Documentation/Intel/SoC/soc.html b/Documentation/Intel/SoC/soc.html index 146e768183..3e72da3aa9 100644 --- a/Documentation/Intel/SoC/soc.html +++ b/Documentation/Intel/SoC/soc.html @@ -32,6 +32,7 @@ <li>Set up the <a href="#MemoryMap">Memory Map"</a></li> </ol> </li> + <li><a href="#AcpiTables">ACPI Tables</a></li> </ol> @@ -556,8 +557,52 @@ Use the following steps to debug the call to TempRamInit: +<hr> +<h1><a name="AcpiTables">ACPI Tables</a></h1> +<p> + One of the payloads that needs ACPI tables is the EDK2 CorebootPayloadPkg. +</p> + +<h2>FADT</h2> +<p> + The EDK2 module + CorebootModulePkg/CbSupportPei/<a target="_blank" href="https://github.com/tianocore/edk2/blob/master/CorebootModulePkg/CbSupportPei/CbSupportPei.c#l342">CbSupportPei.c</a> + requires that the FADT contains the following values: +</p> +<table border="1"> + <tr bgcolor="#c0ffc0"> + <td>EDK2 Field</td> + <td>Coreboot Field</td> + </tr> + <tr><td>Pm1aCntBlk</td><td>pm1a_cnt_blk</td></tr> + <tr><td>PmTmrBlk</td><td>pm_tmr_blk</td></tr> + <tr><td>ResetReg.Address</td><td>reset_reg.</td></tr> + <tr><td>ResetValue</td><td>reset_value</td></tr> + <tr><td>Pm1aEvtBlk</td><td>pm1a_evt_blk</td></tr> + <tr><td>Gpe0Blk</td><td>gpe0_blk</td></tr> + <tr><td>Gpe0BlkLen</td><td>gpe0_blk_len</td></tr> +</table> +<p> + The EDK2 data structure is defined in + MdeModulePkg/Include/IndustryStandard/<a target="_blank" href="https://github.com/tianocore/edk2/blob/master/MdePkg/Include/IndustryStandard/Acpi61.h#l111">Acpi61.h</a> + The coreboot data structure is defined in + src/arch/x86/include/arch/<a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/include/arch/acpi.h;hb=HEAD#l237">acpi.h</a> +</p> + +<ol> + <li> + Select <a target="_blank" href="../Board/board.html#AcpiTables">HAVE_ACPI_TABLES</a> + in the board's Kconfig file + </li> + <li>Create a acpi.c module: + <ol type="A"> + <li>Add the acpi_fill_in_fadt routine and initialize the values above</li> + </ol> + </li> +</ol> + <hr> -<p>Modified: 18 February 2016</p> +<p>Modified: 20 February 2016</p> </body> </html>
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