diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.4/0071-7-pcie-Set-PCIE-MRRS-and-MPS-to-256B.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.4/0071-7-pcie-Set-PCIE-MRRS-and-MPS-to-256B.patch | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/target/linux/ipq806x/patches-5.4/0071-7-pcie-Set-PCIE-MRRS-and-MPS-to-256B.patch b/target/linux/ipq806x/patches-5.4/0071-7-pcie-Set-PCIE-MRRS-and-MPS-to-256B.patch deleted file mode 100644 index 51df248c04..0000000000 --- a/target/linux/ipq806x/patches-5.4/0071-7-pcie-Set-PCIE-MRRS-and-MPS-to-256B.patch +++ /dev/null @@ -1,69 +0,0 @@ -From edff8f777c6321ca89bb950a382f409c4a126e28 Mon Sep 17 00:00:00 2001 -From: Gokul Sriram Palanisamy <gpalan@codeaurora.org> -Date: Thu, 15 Dec 2016 17:38:18 +0530 -Subject: pcie: Set PCIE MRRS and MPS to 256B - -Set Max Read Request Size and Max Payload Size to 256 bytes, -per chip team recommendation. - -Change-Id: I097004be2ced1b3096ffc10c318aae0b2bb155e8 -Signed-off-by: Gokul Sriram Palanisamy <gpalan@codeaurora.org> ---- - drivers/pci/host/pcie-qcom.c | 37 +++++++++++++++++++++++++++++++++++++ - 1 file changed, 37 insertions(+) - -(limited to 'drivers/pci/host/pcie-qcom.c') - ---- a/drivers/pci/controller/dwc/pcie-qcom.c -+++ b/drivers/pci/controller/dwc/pcie-qcom.c -@@ -124,6 +124,14 @@ - - #define PCIE20_LNK_CONTROL2_LINK_STATUS2 0xA0 - -+#define __set(v, a, b) (((v) << (b)) & GENMASK(a, b)) -+#define __mask(a, b) (((1 << ((a) + 1)) - 1) & ~((1 << (b)) - 1)) -+#define PCIE20_DEV_CAS 0x78 -+#define PCIE20_MRRS_MASK __mask(14, 12) -+#define PCIE20_MRRS(x) __set(x, 14, 12) -+#define PCIE20_MPS_MASK __mask(7, 5) -+#define PCIE20_MPS(x) __set(x, 7, 5) -+ - #define QCOM_PCIE_2_1_0_MAX_SUPPLY 3 - struct qcom_pcie_resources_2_1_0 { - struct clk *iface_clk; -@@ -1448,6 +1456,35 @@ err_pm_runtime_put: - return ret; - } - -+static void qcom_pcie_fixup_final(struct pci_dev *dev) -+{ -+ int cap, err; -+ u16 ctl, reg_val; -+ -+ cap = pci_pcie_cap(dev); -+ if (!cap) -+ return; -+ -+ err = pci_read_config_word(dev, cap + PCI_EXP_DEVCTL, &ctl); -+ -+ if (err) -+ return; -+ -+ reg_val = ctl; -+ -+ if (((reg_val & PCIE20_MRRS_MASK) >> 12) > 1) -+ reg_val = (reg_val & ~(PCIE20_MRRS_MASK)) | PCIE20_MRRS(0x1); -+ -+ if (((ctl & PCIE20_MPS_MASK) >> 5) > 1) -+ reg_val = (reg_val & ~(PCIE20_MPS_MASK)) | PCIE20_MPS(0x1); -+ -+ err = pci_write_config_word(dev, cap + PCI_EXP_DEVCTL, reg_val); -+ -+ if (err) -+ pr_err("pcie config write failed %d\n", err); -+} -+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, qcom_pcie_fixup_final); -+ - static const struct of_device_id qcom_pcie_match[] = { - { .compatible = "qcom,pcie-apq8084", .data = &ops_1_0_0 }, - { .compatible = "qcom,pcie-ipq8064", .data = &ops_2_1_0 }, |