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authorAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-10-09 21:53:35 +0200
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-10-30 19:29:59 +0100
commit278512665094888d3c007fdd74e090496d6c811d (patch)
tree6d4f2cdddef316e07829b89c1c1a790d0db92fc3 /target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch
parent3824fa26d256d162fc0e02e46714eda7816cae4a (diff)
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kernel: remove support for kernel 4.19
We use 5.4 on all targets by default, and 4.19 has never been released in a stable version. There is no reason to keep it. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Diffstat (limited to 'target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch')
-rw-r--r--target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch138
1 files changed, 0 insertions, 138 deletions
diff --git a/target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch b/target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch
deleted file mode 100644
index af221499a8..0000000000
--- a/target/linux/mvebu/patches-4.19/524-PCI-aardvark-set-host-and-device-to-the-same-MAX-payload-size.patch
+++ /dev/null
@@ -1,138 +0,0 @@
-From patchwork Thu Sep 28 12:58:34 2017
-Content-Type: text/plain; charset="utf-8"
-MIME-Version: 1.0
-Content-Transfer-Encoding: 7bit
-Subject: [v2,
- 3/7] PCI: aardvark: set host and device to the same MAX payload size
-X-Patchwork-Submitter: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-X-Patchwork-Id: 819587
-Message-Id: <20170928125838.11887-4-thomas.petazzoni@free-electrons.com>
-To: Bjorn Helgaas <bhelgaas@google.com>, linux-pci@vger.kernel.org
-Cc: Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
- Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Gregory Clement
- <gregory.clement@free-electrons.com>,
- Nadav Haklai <nadavh@marvell.com>, Hanna Hawa <hannah@marvell.com>,
- Yehuda Yitschak <yehuday@marvell.com>,
- linux-arm-kernel@lists.infradead.org, Antoine Tenart
- <antoine.tenart@free-electrons.com>, =?utf-8?q?Miqu=C3=A8l_Raynal?=
- <miquel.raynal@free-electrons.com>, Victor Gu <xigu@marvell.com>,
- Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Date: Thu, 28 Sep 2017 14:58:34 +0200
-From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-List-Id: <linux-pci.vger.kernel.org>
-
-From: Victor Gu <xigu@marvell.com>
-
-Since the Aardvark does not implement a PCIe root bus, the Linux PCIe
-subsystem will not align the MAX payload size between the host and the
-device. This patch ensures that the host and device have the same MAX
-payload size, fixing a number of problems with various PCIe devices.
-
-This is part of fixing bug
-https://bugzilla.kernel.org/show_bug.cgi?id=196339, this commit was
-reported as the user to be important to get a Intel 7260 mini-PCIe
-WiFi card working.
-
-Fixes: Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver")
-Signed-off-by: Victor Gu <xigu@marvell.com>
-Reviewed-by: Evan Wang <xswang@marvell.com>
-Reviewed-by: Nadav Haklai <nadavh@marvell.com>
-[Thomas: tweak commit log.]
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
----
- drivers/pci/controller/pci-aardvark.c | 60 ++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 59 insertions(+), 1 deletion(-)
-
---- a/drivers/pci/controller/pci-aardvark.c
-+++ b/drivers/pci/controller/pci-aardvark.c
-@@ -29,9 +29,11 @@
- #define PCIE_CORE_DEV_CTRL_STATS_REG 0xc8
- #define PCIE_CORE_DEV_CTRL_STATS_RELAX_ORDER_DISABLE (0 << 4)
- #define PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT 5
-+#define PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ 0x2
- #define PCIE_CORE_DEV_CTRL_STATS_SNOOP_DISABLE (0 << 11)
- #define PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SIZE_SHIFT 12
- #define PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SZ 0x2
-+#define PCIE_CORE_MPS_UNIT_BYTE 128
- #define PCIE_CORE_LINK_CTRL_STAT_REG 0xd0
- #define PCIE_CORE_LINK_L0S_ENTRY BIT(0)
- #define PCIE_CORE_LINK_TRAINING BIT(5)
-@@ -253,7 +255,8 @@ static void advk_pcie_setup_hw(struct ad
-
- /* Set PCIe Device Control and Status 1 PF0 register */
- reg = PCIE_CORE_DEV_CTRL_STATS_RELAX_ORDER_DISABLE |
-- (7 << PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT) |
-+ (PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ <<
-+ PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT) |
- PCIE_CORE_DEV_CTRL_STATS_SNOOP_DISABLE |
- (PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SZ <<
- PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SIZE_SHIFT);
-@@ -834,6 +837,58 @@ out_release_res:
- return err;
- }
-
-+static int advk_pcie_find_smpss(struct pci_dev *dev, void *data)
-+{
-+ u8 *smpss = data;
-+
-+ if (!dev)
-+ return 0;
-+
-+ if (!pci_is_pcie(dev))
-+ return 0;
-+
-+ if (*smpss > dev->pcie_mpss)
-+ *smpss = dev->pcie_mpss;
-+
-+ return 0;
-+}
-+
-+static int advk_pcie_bus_configure_mps(struct pci_dev *dev, void *data)
-+{
-+ int mps;
-+
-+ if (!dev)
-+ return 0;
-+
-+ if (!pci_is_pcie(dev))
-+ return 0;
-+
-+ mps = PCIE_CORE_MPS_UNIT_BYTE << *(u8 *)data;
-+ pcie_set_mps(dev, mps);
-+
-+ return 0;
-+}
-+
-+static void advk_pcie_configure_mps(struct pci_bus *bus, struct advk_pcie *pcie)
-+{
-+ u8 smpss = PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ;
-+ u32 reg;
-+
-+ /* Find the minimal supported MAX payload size */
-+ advk_pcie_find_smpss(bus->self, &smpss);
-+ pci_walk_bus(bus, advk_pcie_find_smpss, &smpss);
-+
-+ /* Configure RC MAX payload size */
-+ reg = advk_readl(pcie, PCIE_CORE_DEV_CTRL_STATS_REG);
-+ reg &= ~PCI_EXP_DEVCTL_PAYLOAD;
-+ reg |= smpss << PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT;
-+ advk_writel(pcie, reg, PCIE_CORE_DEV_CTRL_STATS_REG);
-+
-+ /* Configure device MAX payload size */
-+ advk_pcie_bus_configure_mps(bus->self, &smpss);
-+ pci_walk_bus(bus, advk_pcie_bus_configure_mps, &smpss);
-+}
-+
- static int advk_pcie_probe(struct platform_device *pdev)
- {
- struct device *dev = &pdev->dev;
-@@ -908,6 +963,9 @@ static int advk_pcie_probe(struct platfo
- list_for_each_entry(child, &bus->children, node)
- pcie_bus_configure_settings(child);
-
-+ /* Configure the MAX pay load size */
-+ advk_pcie_configure_mps(bus, pcie);
-+
- pci_bus_add_devices(bus);
- return 0;
- }