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@@ -1,60 +0,0 @@
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-From patchwork Tue Jan 9 14:42:21 2018
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-Content-Type: text/plain; charset="utf-8"
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-MIME-Version: 1.0
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-Content-Transfer-Encoding: 7bit
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-Subject: PCI: dwc: fix enumeration end when reaching root subordinate
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-From: Koen Vandeputte <[email protected]>
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-X-Patchwork-Id: 10152443
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-Message-Id: <[email protected]>
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-To: [email protected]
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-Cc: [email protected], [email protected],
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- [email protected], [email protected], [email protected],
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- Koen Vandeputte <[email protected]>,
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- Mika Westerberg <[email protected]>
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-Date: Tue, 9 Jan 2018 15:42:21 +0100
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-
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-The subordinate value indicates the highest bus number which can be
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-reached downstream though a certain device.
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-
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-Commit a20c7f36bd3d ("PCI: Do not allocate more buses than available in
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-parent")
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-ensures that downstream devices cannot assign busnumbers higher than the
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-upstream device subordinate number, which was indeed illogical.
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-
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-By default, dw_pcie_setup_rc() inits the Root Complex subordinate to a
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-value of 0x01.
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-
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-Due to this combined with above commit, enumeration stops digging deeper
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-downstream as soon as bus num 0x01 has been assigned, which is always
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-the case for a bridge device.
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-
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-This results in all devices behind a bridge bus to remain undetected, as
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-these would be connected to bus 0x02 or higher.
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-
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-Fix this by initializing the RC to a subordinate value of 0xff, meaning
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-that all busses [0x00-0xff] are reachable through this RC.
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-
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-Fixes: a20c7f36bd3d ("PCI: Do not allocate more buses than available in
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-parent")
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-Signed-off-by: Koen Vandeputte <[email protected]>
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-Tested-by: Niklas Cassel <[email protected]>
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-Cc: Mika Westerberg <[email protected]>
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----
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-
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-Will send separate patches to stable as this file got moved/renamed
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-
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-
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- drivers/pci/dwc/pcie-designware-host.c | 2 +-
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- 1 file changed, 1 insertion(+), 1 deletion(-)
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-
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---- a/drivers/pci/dwc/pcie-designware-host.c
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-+++ b/drivers/pci/dwc/pcie-designware-host.c
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-@@ -607,7 +607,7 @@ void dw_pcie_setup_rc(struct pcie_port *
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- /* setup bus numbers */
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- val = dw_pcie_readl_dbi(pci, PCI_PRIMARY_BUS);
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- val &= 0xff000000;
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-- val |= 0x00010100;
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-+ val |= 0x00ff0100;
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- dw_pcie_writel_dbi(pci, PCI_PRIMARY_BUS, val);
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-
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- /* setup command register */
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