ipq806x: remove support for kernel 4.14

This target has been on kernel 4.19 for several months [1] and
already uses kernel 5.4 as testing kernel. Therefore, it should
not be necessary to keep support for kernel 4.14 as well.

[1] 2a82e0e1ca0f ("ipq806x: switch to 4.19 kernel version")

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> [ipq8065/nbg6817]

1 files changed, 0 insertions, 126 deletions

diff --git a/target/linux/ipq806x/patches-4.14/0071-3-PCI-qcom-Fixed-IPQ806x-PCIE-init-changes.patch b/target/linux/ipq806x/patches-4.14/0071-3-PCI-qcom-Fixed-IPQ806x-PCIE-init-changes.patch
deleted file mode 100644
index 57ee082c83..0000000000
--- a/target/linux/ipq806x/patches-4.14/0071-3-PCI-qcom-Fixed-IPQ806x-PCIE-init-changes.patch
+++ /dev/null
@@ -1,126 +0,0 @@
-From eddd13215d0f2b549ebc5f0e8796d5b1231f90a0 Mon Sep 17 00:00:00 2001
-From: Sham Muthayyan <smuthayy@codeaurora.org>
-Date: Tue, 19 Jul 2016 19:58:22 +0530
-Subject: PCI: qcom: Fixed IPQ806x PCIE init changes
-
-Change-Id: Ic319b1aec27a47809284759f8fcb6a8815b7cf7e
-Signed-off-by: Sham Muthayyan <smuthayy@codeaurora.org>
----
- drivers/pci/host/pcie-qcom.c | 62 +++++++++++++++++++++++++++++++++++++-------
- 1 file changed, 53 insertions(+), 9 deletions(-)
-
---- a/drivers/pci/dwc/pcie-qcom.c
-+++ b/drivers/pci/dwc/pcie-qcom.c
-@@ -52,7 +52,13 @@
- #define PCIE_CAP_CPL_TIMEOUT_DISABLE		0x10
- 
- #define PCIE20_PARF_PHY_CTRL			0x40
-+#define PHY_CTRL_PHY_TX0_TERM_OFFSET_MASK	(0x1f << 16)
-+#define PHY_CTRL_PHY_TX0_TERM_OFFSET(x)		(x << 16)
-+
- #define PCIE20_PARF_PHY_REFCLK			0x4C
-+#define REF_SSP_EN				BIT(16)
-+#define REF_USE_PAD				BIT(12)
-+
- #define PCIE20_PARF_DBI_BASE_ADDR		0x168
- #define PCIE20_PARF_SLV_ADDR_SPACE_SIZE		0x16C
- #define PCIE20_PARF_MHI_CLOCK_RESET_CTRL	0x174
-@@ -83,6 +89,18 @@
- #define DBI_RO_WR_EN				1
- 
- #define PERST_DELAY_US				1000
-+/* PARF registers */
-+#define PCIE20_PARF_PCS_DEEMPH			0x34
-+#define PCS_DEEMPH_TX_DEEMPH_GEN1(x)		(x << 16)
-+#define PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(x)	(x << 8)
-+#define PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(x)	(x << 0)
-+
-+#define PCIE20_PARF_PCS_SWING			0x38
-+#define PCS_SWING_TX_SWING_FULL(x)		(x << 8)
-+#define PCS_SWING_TX_SWING_LOW(x)		(x << 0)
-+
-+#define PCIE20_PARF_CONFIG_BITS			0x50
-+#define PHY_RX0_EQ(x)				(x << 24)
- 
- #define PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE	0x358
- #define SLV_ADDR_SPACE_SZ			0x10000000
-@@ -102,6 +120,7 @@ struct qcom_pcie_resources_2_1_0 {
- 	struct regulator *vdda;
- 	struct regulator *vdda_phy;
- 	struct regulator *vdda_refclk;
-+	uint8_t phy_tx0_term_offset;
- };
- 
- struct qcom_pcie_resources_1_0_0 {
-@@ -179,6 +198,16 @@ struct qcom_pcie {
- 
- #define to_qcom_pcie(x)		dev_get_drvdata((x)->dev)
- 
-+static inline void
-+writel_masked(void __iomem *addr, u32 clear_mask, u32 set_mask)
-+{
-+	u32 val = readl(addr);
-+
-+	val &= ~clear_mask;
-+	val |= set_mask;
-+	writel(val, addr);
-+}
-+
- static void qcom_ep_reset_assert(struct qcom_pcie *pcie)
- {
- 	gpiod_set_value_cansleep(pcie->reset, 1);
-@@ -280,6 +309,10 @@ static int qcom_pcie_get_resources_2_1_0
- 	if (IS_ERR(res->ext_reset))
- 		return PTR_ERR(res->ext_reset);
- 
-+	if (of_property_read_u8(dev->of_node, "phy-tx0-term-offset",
-+				&res->phy_tx0_term_offset))
-+		res->phy_tx0_term_offset = 0;
-+
- 	res->phy_reset = devm_reset_control_get_exclusive(dev, "phy");
- 	return PTR_ERR_OR_ZERO(res->phy_reset);
- }
-@@ -309,7 +342,6 @@ static int qcom_pcie_init_2_1_0(struct q
- 	struct qcom_pcie_resources_2_1_0 *res = &pcie->res.v2_1_0;
- 	struct dw_pcie *pci = pcie->pci;
- 	struct device *dev = pci->dev;
--	u32 val;
- 	int ret;
- 
- 	ret = reset_control_assert(res->ahb_reset);
-@@ -378,15 +410,26 @@ static int qcom_pcie_init_2_1_0(struct q
- 		goto err_deassert_ahb;
- 	}
- 
--	/* enable PCIe clocks and resets */
--	val = readl(pcie->parf + PCIE20_PARF_PHY_CTRL);
--	val &= ~BIT(0);
--	writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL);
--
--	/* enable external reference clock */
--	val = readl(pcie->parf + PCIE20_PARF_PHY_REFCLK);
--	val |= BIT(16);
--	writel(val, pcie->parf + PCIE20_PARF_PHY_REFCLK);
-+	writel_masked(pcie->parf + PCIE20_PARF_PHY_CTRL, BIT(0), 0);
-+
-+	/* Set Tx termination offset */
-+	writel_masked(pcie->parf + PCIE20_PARF_PHY_CTRL,
-+		      PHY_CTRL_PHY_TX0_TERM_OFFSET_MASK,
-+		      PHY_CTRL_PHY_TX0_TERM_OFFSET(res->phy_tx0_term_offset));
-+
-+	/* PARF programming */
-+	writel(PCS_DEEMPH_TX_DEEMPH_GEN1(0x18) |
-+	       PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(0x18) |
-+	       PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(0x22),
-+	       pcie->parf + PCIE20_PARF_PCS_DEEMPH);
-+	writel(PCS_SWING_TX_SWING_FULL(0x78) |
-+	       PCS_SWING_TX_SWING_LOW(0x78),
-+	       pcie->parf + PCIE20_PARF_PCS_SWING);
-+	writel(PHY_RX0_EQ(0x4), pcie->parf + PCIE20_PARF_CONFIG_BITS);
-+
-+	/* Enable reference clock */
-+	writel_masked(pcie->parf + PCIE20_PARF_PHY_REFCLK,
-+		      REF_USE_PAD, REF_SSP_EN);
- 
- 	ret = reset_control_deassert(res->phy_reset);
- 	if (ret) {