<p>Nico Huber has uploaded this change for <strong>review</strong>.</p><p><a href="https://review.coreboot.org/20763">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">libpayload/storage: Enable bus mastering for AHCI<br><br>This is (thankfully) not done by coreboot any more for recent chipsets.<br><br>Change-Id: If56e38037f7b1e53871ee63e6ff297028c59d493<br>Signed-off-by: Nico Huber <nico.huber@secunet.com><br>---<br>M payloads/libpayload/drivers/storage/ahci.c<br>1 file changed, 5 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/20763/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">diff --git a/payloads/libpayload/drivers/storage/ahci.c b/payloads/libpayload/drivers/storage/ahci.c<br>index 0e7fd7d..3a0b99d 100644<br>--- a/payloads/libpayload/drivers/storage/ahci.c<br>+++ b/payloads/libpayload/drivers/storage/ahci.c<br>@@ -34,6 +34,7 @@<br> #include <string.h><br> #include <libpayload.h><br> #include <pci.h><br>+#include <pci/pci.h><br> #include <storage/ata.h><br> #include <storage/ahci.h><br> <br>@@ -267,6 +268,10 @@<br>  /* Set AHCI access mode. */<br>   ctrl->global_ctrl |= HBA_CTRL_AHCI_EN;<br> <br>+ /* Enable bus mastering. */<br>+  const u16 command = pci_read_config16(dev, PCI_COMMAND);<br>+     pci_write_config16(dev, PCI_COMMAND, command | PCI_COMMAND_MASTER);<br>+<br>        /* Probe for devices. */<br>      for (i = 0; i < 32; ++i) {<br>                 if (ctrl->ports_impl & (1 << i))<br></pre><p>To view, visit <a href="https://review.coreboot.org/20763">change 20763</a>. To unsubscribe, visit <a href="https://review.coreboot.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://review.coreboot.org/20763"/><meta itemprop="name" content="View Change"/></div></div>

<div style="display:none"> Gerrit-Project: coreboot </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: If56e38037f7b1e53871ee63e6ff297028c59d493 </div>
<div style="display:none"> Gerrit-Change-Number: 20763 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Nico Huber <nico.h@gmx.de> </div>