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<p style="box-sizing: border-box; margin-top: 0px !important;
margin-bottom: 16px; color: rgb(36, 41, 46); font-family:
-apple-system, BlinkMacSystemFont, "Segoe UI",
Helvetica, Arial, sans-serif, "Apple Color Emoji",
"Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Hi,</p>
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom:
16px; color: rgb(36, 41, 46); font-family: -apple-system,
BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
sans-serif, "Apple Color Emoji", "Segoe UI
Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">We are working on
coreboot support for POWER9.<br style="box-sizing: border-box;">
Recently we have achieved the milestone where we could initialize
the<br style="box-sizing: border-box;">
memory on the Talos II platform and start the coreboot ramstage
phase [1].<br>
</p>
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom:
16px; color: rgb(36, 41, 46); font-family: -apple-system,
BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
sans-serif, "Apple Color Emoji", "Segoe UI
Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">What we would like to
achieve next is to start skiboot from coreboot.</p>
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom:
16px; color: rgb(36, 41, 46); font-family: -apple-system,
BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
sans-serif, "Apple Color Emoji", "Segoe UI
Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">We can see that there is
this HDAT interface between Hostboot and skiboot<br
style="box-sizing: border-box;">
[2] which we probably would need to reimplement.</p>
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom:
16px; color: rgb(36, 41, 46); font-family: -apple-system,
BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
sans-serif, "Apple Color Emoji", "Segoe UI
Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Sadly, the documentation
says that "The HDAT specification is currently not public.".<br
style="box-sizing: border-box;">
Any idea why is that? Can we get some more information about<br
style="box-sizing: border-box;">
the HDAT somewhere (apart from reading the Hostboot code)?<br>
<br>
[1] <a
href="https://github.com/3mdeb/openpower-coreboot-docs/blob/main/releases.md"
style="box-sizing: border-box; background-color: initial; color:
var(--color-text-link); text-decoration: none;">https://github.com/3mdeb/openpower-coreboot-docs/blob/main/releases.md</a><br>
[2] <a rel="nofollow"
href="https://open-power.github.io/skiboot/doc/overview.html#booting"
style="box-sizing: border-box; background-color: initial; color:
var(--color-text-link); text-decoration: none;">https://open-power.github.io/skiboot/doc/overview.html#booting</a></p>
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom:
0px !important; color: rgb(36, 41, 46); font-family:
-apple-system, BlinkMacSystemFont, "Segoe UI",
Helvetica, Arial, sans-serif, "Apple Color Emoji",
"Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align:
start; text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Thanks,</p>
<pre class="moz-signature" cols="72">--
Krystian Hebel
Firmware Engineer
<a class="moz-txt-link-freetext" href="https://3mdeb.com">https://3mdeb.com</a> | @3mdeb_com</pre>
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