This is a note to let you know that I've just added the patch titled
PCI: j721e: Add PCIe support for AM64
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-j721e-add-pcie-support-for-am64.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 90d362c8c238106672d50632f15187e5a6ed2fdd
Author: Kishon Vijay Abraham I <kishon@xxxxxx>
Date: Wed Aug 11 18:03:35 2021 +0530
PCI: j721e: Add PCIe support for AM64
[ Upstream commit c8a375a8e15ac31293d7fda08008d6da8f5df3db ]
AM64 has the same PCIe IP as in J7200 with certain erratas not
applicable (quirk_detect_quiet_flag). Add support for "ti,am64-pcie-host"
compatible and "ti,am64-pcie-ep" compatible that is specific to AM64.
Link: https://lore.kernel.org/r/20210811123336.31357-5-kishon@xxxxxx
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c
index 2f5a49c77074..8a6d68e13f30 100644
--- a/drivers/pci/controller/cadence/pci-j721e.c
+++ b/drivers/pci/controller/cadence/pci-j721e.c
@@ -298,6 +298,17 @@ static const struct j721e_pcie_data j7200_pcie_ep_data = {
.quirk_detect_quiet_flag = true,
};
+static const struct j721e_pcie_data am64_pcie_rc_data = {
+ .mode = PCI_MODE_RC,
+ .linkdown_irq_regfield = J7200_LINK_DOWN,
+ .byte_access_allowed = true,
+};
+
+static const struct j721e_pcie_data am64_pcie_ep_data = {
+ .mode = PCI_MODE_EP,
+ .linkdown_irq_regfield = J7200_LINK_DOWN,
+};
+
static const struct of_device_id of_j721e_pcie_match[] = {
{
.compatible = "ti,j721e-pcie-host",
@@ -315,6 +326,14 @@ static const struct of_device_id of_j721e_pcie_match[] = {
.compatible = "ti,j7200-pcie-ep",
.data = &j7200_pcie_ep_data,
},
+ {
+ .compatible = "ti,am64-pcie-host",
+ .data = &am64_pcie_rc_data,
+ },
+ {
+ .compatible = "ti,am64-pcie-ep",
+ .data = &am64_pcie_ep_data,
+ },
{},
};
