From: Kevin O'Connor <kevin@koconnor.net>
Date: Sun, 12 Dec 2010 19:01:47 +0000 (-0500)
Subject: ahci: enable io/mem/dma
X-Git-Tag: rel-0.6.2~50
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=7eb0222835c2bc01e1927db5ae344a64f5fd7fba;p=seabios.git

ahci: enable io/mem/dma

Make sure IO, MMIO and DMA are enabled in pci config space
before using the device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/src/ahci.c b/src/ahci.c
index ee50e8f..a03d8be 100644
--- a/src/ahci.c
+++ b/src/ahci.c
@@ -447,6 +447,9 @@ ahci_init_controller(int bdf)
     dprintf(1, "AHCI controller at %02x.%x, iobase %x, irq %d\n",
             bdf >> 3, bdf & 7, ctrl->iobase, ctrl->irq);
 
+    pci_config_maskw(bdf, PCI_COMMAND, 0,
+                     PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+
     val = ahci_ctrl_readl(ctrl, HOST_CTL);
     ahci_ctrl_writel(ctrl, HOST_CTL, val | HOST_CTL_AHCI_EN);