diff options
Diffstat (limited to 'target/linux/ipq806x/patches-5.4/094-v5.7-ipq806x-net-mdio-add-ipq8064-mdio-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.4/094-v5.7-ipq806x-net-mdio-add-ipq8064-mdio-driver.patch | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/target/linux/ipq806x/patches-5.4/094-v5.7-ipq806x-net-mdio-add-ipq8064-mdio-driver.patch b/target/linux/ipq806x/patches-5.4/094-v5.7-ipq806x-net-mdio-add-ipq8064-mdio-driver.patch deleted file mode 100644 index 328942dad9..0000000000 --- a/target/linux/ipq806x/patches-5.4/094-v5.7-ipq806x-net-mdio-add-ipq8064-mdio-driver.patch +++ /dev/null @@ -1,216 +0,0 @@ -From caaa71fac36ec8c19145dbf8262a9b77ab09f1a1 Mon Sep 17 00:00:00 2001 -From: Ansuel Smith <ansuelsmth@gmail.com> -Date: Wed, 4 Mar 2020 22:38:32 +0100 -Subject: net: mdio: add ipq8064 mdio driver - -Currently ipq806x soc use generic bitbang driver to -comunicate with the gmac ethernet interface. -Add a dedicated driver created by chunkeey to fix this. - -Co-developed-by: Christian Lamparter <chunkeey@gmail.com> -Signed-off-by: Christian Lamparter <chunkeey@gmail.com> -Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/phy/Kconfig | 8 ++ - drivers/net/phy/Makefile | 1 + - drivers/net/phy/mdio-ipq8064.c | 166 +++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 175 insertions(+) - create mode 100644 drivers/net/phy/mdio-ipq8064.c - ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -156,6 +156,14 @@ config MDIO_I2C - - This is library mode. - -+config MDIO_IPQ8064 -+ tristate "Qualcomm IPQ8064 MDIO interface support" -+ depends on HAS_IOMEM && OF_MDIO -+ depends on MFD_SYSCON -+ help -+ This driver supports the MDIO interface found in the network -+ interface units of the IPQ8064 SoC -+ - config MDIO_MOXART - tristate "MOXA ART MDIO interface support" - depends on ARCH_MOXART || COMPILE_TEST ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -50,6 +50,7 @@ obj-$(CONFIG_MDIO_CAVIUM) += mdio-cavium - obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o - obj-$(CONFIG_MDIO_HISI_FEMAC) += mdio-hisi-femac.o - obj-$(CONFIG_MDIO_I2C) += mdio-i2c.o -+obj-$(CONFIG_MDIO_IPQ8064) += mdio-ipq8064.o - obj-$(CONFIG_MDIO_MOXART) += mdio-moxart.o - obj-$(CONFIG_MDIO_MSCC_MIIM) += mdio-mscc-miim.o - obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o ---- /dev/null -+++ b/drivers/net/phy/mdio-ipq8064.c -@@ -0,0 +1,166 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* Qualcomm IPQ8064 MDIO interface driver -+ * -+ * Copyright (C) 2019 Christian Lamparter <chunkeey@gmail.com> -+ * Copyright (C) 2020 Ansuel Smith <ansuelsmth@gmail.com> -+ */ -+ -+#include <linux/delay.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/regmap.h> -+#include <linux/of_mdio.h> -+#include <linux/phy.h> -+#include <linux/platform_device.h> -+#include <linux/mfd/syscon.h> -+ -+/* MII address register definitions */ -+#define MII_ADDR_REG_ADDR 0x10 -+#define MII_BUSY BIT(0) -+#define MII_WRITE BIT(1) -+#define MII_CLKRANGE_60_100M (0 << 2) -+#define MII_CLKRANGE_100_150M (1 << 2) -+#define MII_CLKRANGE_20_35M (2 << 2) -+#define MII_CLKRANGE_35_60M (3 << 2) -+#define MII_CLKRANGE_150_250M (4 << 2) -+#define MII_CLKRANGE_250_300M (5 << 2) -+#define MII_CLKRANGE_MASK GENMASK(4, 2) -+#define MII_REG_SHIFT 6 -+#define MII_REG_MASK GENMASK(10, 6) -+#define MII_ADDR_SHIFT 11 -+#define MII_ADDR_MASK GENMASK(15, 11) -+ -+#define MII_DATA_REG_ADDR 0x14 -+ -+#define MII_MDIO_DELAY_USEC (1000) -+#define MII_MDIO_RETRY_MSEC (10) -+ -+struct ipq8064_mdio { -+ struct regmap *base; /* NSS_GMAC0_BASE */ -+}; -+ -+static int -+ipq8064_mdio_wait_busy(struct ipq8064_mdio *priv) -+{ -+ u32 busy; -+ -+ return regmap_read_poll_timeout(priv->base, MII_ADDR_REG_ADDR, busy, -+ !(busy & MII_BUSY), MII_MDIO_DELAY_USEC, -+ MII_MDIO_RETRY_MSEC * USEC_PER_MSEC); -+} -+ -+static int -+ipq8064_mdio_read(struct mii_bus *bus, int phy_addr, int reg_offset) -+{ -+ u32 miiaddr = MII_BUSY | MII_CLKRANGE_250_300M; -+ struct ipq8064_mdio *priv = bus->priv; -+ u32 ret_val; -+ int err; -+ -+ /* Reject clause 45 */ -+ if (reg_offset & MII_ADDR_C45) -+ return -EOPNOTSUPP; -+ -+ miiaddr |= ((phy_addr << MII_ADDR_SHIFT) & MII_ADDR_MASK) | -+ ((reg_offset << MII_REG_SHIFT) & MII_REG_MASK); -+ -+ regmap_write(priv->base, MII_ADDR_REG_ADDR, miiaddr); -+ usleep_range(8, 10); -+ -+ err = ipq8064_mdio_wait_busy(priv); -+ if (err) -+ return err; -+ -+ regmap_read(priv->base, MII_DATA_REG_ADDR, &ret_val); -+ return (int)ret_val; -+} -+ -+static int -+ipq8064_mdio_write(struct mii_bus *bus, int phy_addr, int reg_offset, u16 data) -+{ -+ u32 miiaddr = MII_WRITE | MII_BUSY | MII_CLKRANGE_250_300M; -+ struct ipq8064_mdio *priv = bus->priv; -+ -+ /* Reject clause 45 */ -+ if (reg_offset & MII_ADDR_C45) -+ return -EOPNOTSUPP; -+ -+ regmap_write(priv->base, MII_DATA_REG_ADDR, data); -+ -+ miiaddr |= ((phy_addr << MII_ADDR_SHIFT) & MII_ADDR_MASK) | -+ ((reg_offset << MII_REG_SHIFT) & MII_REG_MASK); -+ -+ regmap_write(priv->base, MII_ADDR_REG_ADDR, miiaddr); -+ usleep_range(8, 10); -+ -+ return ipq8064_mdio_wait_busy(priv); -+} -+ -+static int -+ipq8064_mdio_probe(struct platform_device *pdev) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ struct ipq8064_mdio *priv; -+ struct mii_bus *bus; -+ int ret; -+ -+ bus = devm_mdiobus_alloc_size(&pdev->dev, sizeof(*priv)); -+ if (!bus) -+ return -ENOMEM; -+ -+ bus->name = "ipq8064_mdio_bus"; -+ bus->read = ipq8064_mdio_read; -+ bus->write = ipq8064_mdio_write; -+ snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii", dev_name(&pdev->dev)); -+ bus->parent = &pdev->dev; -+ -+ priv = bus->priv; -+ priv->base = device_node_to_regmap(np); -+ if (IS_ERR(priv->base)) { -+ if (priv->base == ERR_PTR(-EPROBE_DEFER)) -+ return -EPROBE_DEFER; -+ -+ dev_err(&pdev->dev, "error getting device regmap, error=%pe\n", -+ priv->base); -+ return PTR_ERR(priv->base); -+ } -+ -+ ret = of_mdiobus_register(bus, np); -+ if (ret) -+ return ret; -+ -+ platform_set_drvdata(pdev, bus); -+ return 0; -+} -+ -+static int -+ipq8064_mdio_remove(struct platform_device *pdev) -+{ -+ struct mii_bus *bus = platform_get_drvdata(pdev); -+ -+ mdiobus_unregister(bus); -+ -+ return 0; -+} -+ -+static const struct of_device_id ipq8064_mdio_dt_ids[] = { -+ { .compatible = "qcom,ipq8064-mdio" }, -+ { } -+}; -+MODULE_DEVICE_TABLE(of, ipq8064_mdio_dt_ids); -+ -+static struct platform_driver ipq8064_mdio_driver = { -+ .probe = ipq8064_mdio_probe, -+ .remove = ipq8064_mdio_remove, -+ .driver = { -+ .name = "ipq8064-mdio", -+ .of_match_table = ipq8064_mdio_dt_ids, -+ }, -+}; -+ -+module_platform_driver(ipq8064_mdio_driver); -+ -+MODULE_DESCRIPTION("Qualcomm IPQ8064 MDIO interface driver"); -+MODULE_AUTHOR("Christian Lamparter <chunkeey@gmail.com>"); -+MODULE_AUTHOR("Ansuel Smith <ansuelsmth@gmail.com>"); -+MODULE_LICENSE("GPL"); |