60 lines
2.0 KiB
Diff
60 lines
2.0 KiB
Diff
From 6054ac4ca1ce5f3e4589bfead3c9c05af89f9ace Mon Sep 17 00:00:00 2001
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From: starous <starous@pracovna>
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Date: Sun, 22 Jul 2012 21:09:30 +0200
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Subject: [PATCH 017/482] EHCI and OHCI PCI bus master
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---
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ChangeLog | 5 +++++
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grub-core/bus/usb/ehci.c | 5 +++++
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grub-core/bus/usb/ohci.c | 5 +++++
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3 files changed, 15 insertions(+)
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diff --git a/ChangeLog b/ChangeLog
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index 0db6239..01d4f92 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,8 @@
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+2012-07-22 Ales Nesrsta <starous@volny.cz>
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+
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+ * grub-core/bus/usb/ehci.c: PCI iter. - added PCI bus master setting.
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+ * grub-core/bus/usb/ohci.c: PCI iter. - added PCI bus master setting.
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+
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2012-07-22 Vladimir Serbinenko <phcoder@gmail.com>
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* util/grub-mkconfig_lib.in (grub_quote): Remove extra layer of escape.
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diff --git a/grub-core/bus/usb/ehci.c b/grub-core/bus/usb/ehci.c
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index b700519..d99a4be 100644
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--- a/grub-core/bus/usb/ehci.c
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+++ b/grub-core/bus/usb/ehci.c
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@@ -533,6 +533,11 @@ grub_ehci_pci_iter (grub_pci_device_t dev,
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"EHCI grub_ehci_pci_iter: registers above 4G are not supported\n");
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return 0;
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}
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+
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+ /* Set bus master - needed for coreboot, VMware, broken BIOSes etc. */
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
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+ grub_pci_write_word(addr,
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+ GRUB_PCI_COMMAND_BUS_MASTER | grub_pci_read_word(addr));
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grub_dprintf ("ehci", "EHCI grub_ehci_pci_iter: 32-bit EHCI OK\n");
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}
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diff --git a/grub-core/bus/usb/ohci.c b/grub-core/bus/usb/ohci.c
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index 23cf631..6fabb4b 100644
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--- a/grub-core/bus/usb/ohci.c
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+++ b/grub-core/bus/usb/ohci.c
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@@ -270,6 +270,11 @@ grub_ohci_pci_iter (grub_pci_device_t dev,
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return 0;
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#endif
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+ /* Set bus master - needed for coreboot, VMware, broken BIOSes etc. */
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
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+ grub_pci_write_word(addr,
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+ GRUB_PCI_COMMAND_BUS_MASTER | grub_pci_read_word(addr));
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+
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grub_dprintf ("ohci", "class=0x%02x 0x%02x interface 0x%02x\n",
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class, subclass, interf);
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}
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--
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1.8.2.1
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