diff options
Diffstat (limited to 'SOURCES/0001-Vulcan-AHCI-PCI-bar-fix-for-Broadcom-Vulcan-early-si.patch')
| -rw-r--r-- | SOURCES/0001-Vulcan-AHCI-PCI-bar-fix-for-Broadcom-Vulcan-early-si.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/SOURCES/0001-Vulcan-AHCI-PCI-bar-fix-for-Broadcom-Vulcan-early-si.patch b/SOURCES/0001-Vulcan-AHCI-PCI-bar-fix-for-Broadcom-Vulcan-early-si.patch deleted file mode 100644 index 7f24958..0000000 --- a/SOURCES/0001-Vulcan-AHCI-PCI-bar-fix-for-Broadcom-Vulcan-early-si.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Robert Richter <rrichter@redhat.com> -Date: Thu, 7 Jun 2018 22:59:32 -0400 -Subject: [PATCH] Vulcan: AHCI PCI bar fix for Broadcom Vulcan early silicon - -Message-id: <1528412373-19128-2-git-send-email-rrichter@redhat.com> -Patchwork-id: 220950 -O-Subject: [RHEL-8.0 BZ 1563590 v2 1/2] PCI: Vulcan: AHCI PCI bar fix for Broadcom Vulcan early silicon -Bugzilla: 1563590 -RH-Acked-by: Dean Nelson <dnelson@redhat.com> -RH-Acked-by: Mark Langsdorf <mlangsdo@redhat.com> -RH-Acked-by: Mark Salter <msalter@redhat.com> - -From: Ashok Kumar Sekar <asekar@redhat.com> - -PCI BAR 5 is not setup correctly for the on-board AHCI -controller on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 -by using BAR 4's resources which are populated correctly but NOT used -by the AHCI controller actually. - -RHEL-only: - -Both patches are in RHEL-7.6 also. Inclusion of the patches into RHEL-8 -was discussed. Since there are partners with Ax system configurations it -was decided to carry them in RHEL8 too. See: - - https://bugzilla.redhat.com/show_bug.cgi?id=1563590#c1 - -Upstream Status: RHEL only -Signed-off-by: Ashok Kumar Sekar <asekar@redhat.com> -Signed-off-by: Jayachandran C <jchandra@broadcom.com> -Signed-off-by: Robert Richter <rrichter@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> ---- - drivers/pci/quirks.c | 24 ++++++++++++++++++++++++ - 1 file changed, 24 insertions(+) - -diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c -index bdf9b52567e0..1e98e20b7cc2 100644 ---- a/drivers/pci/quirks.c -+++ b/drivers/pci/quirks.c -@@ -4196,6 +4196,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000, - DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084, - quirk_bridge_cavm_thrx2_pcie_root); - -+/* -+ * PCI BAR 5 is not setup correctly for the on-board AHCI controller -+ * on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 by -+ * using BAR 4's resources which are populated correctly and NOT -+ * actually used by the AHCI controller. -+ */ -+static void quirk_fix_vulcan_ahci_bars(struct pci_dev *dev) -+{ -+ struct resource *r = &dev->resource[4]; -+ -+ if (!(r->flags & IORESOURCE_MEM) || (r->start == 0)) -+ return; -+ -+ /* Set BAR5 resource to BAR4 */ -+ dev->resource[5] = *r; -+ -+ /* Update BAR5 in pci config space */ -+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_5, r->start); -+ -+ /* Clear BAR4's resource */ -+ memset(r, 0, sizeof(*r)); -+} -+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9027, quirk_fix_vulcan_ahci_bars); -+ - /* - * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero) - * class code. Fix it. --- -2.28.0 - |