From e99093c1cacaf4614d74ec038074a778d9e9fedd Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 8 Mar 2020 15:17:07 +0100 Subject: oxnas: restore accidentally moved file renamed: files-4.14/phy/phy-oxnas-pcie.c -> files-4.14/drivers/phy/phy-oxnas-pcie.c Signed-off-by: Daniel Golle --- .../oxnas/files-4.14/drivers/phy/phy-oxnas-pcie.c | 150 +++++++++++++++++++++ target/linux/oxnas/files-4.14/phy/phy-oxnas-pcie.c | 150 --------------------- 2 files changed, 150 insertions(+), 150 deletions(-) create mode 100644 target/linux/oxnas/files-4.14/drivers/phy/phy-oxnas-pcie.c delete mode 100644 target/linux/oxnas/files-4.14/phy/phy-oxnas-pcie.c diff --git a/target/linux/oxnas/files-4.14/drivers/phy/phy-oxnas-pcie.c b/target/linux/oxnas/files-4.14/drivers/phy/phy-oxnas-pcie.c new file mode 100644 index 0000000000..676a5f9332 --- /dev/null +++ b/target/linux/oxnas/files-4.14/drivers/phy/phy-oxnas-pcie.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019 Daniel Golle + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ADDR_VAL(val) ((val) & 0xFFFF) +#define DATA_VAL(val) ((val) & 0xFFFF) + +#define SYS_CTRL_HCSL_CTRL_REGOFFSET 0x114 + +enum { + HCSL_BIAS_ON = BIT(0), + HCSL_PCIE_EN = BIT(1), + HCSL_PCIEA_EN = BIT(2), + HCSL_PCIEB_EN = BIT(3), +}; + +enum { + /* pcie phy reg offset */ + PHY_ADDR = 0, + PHY_DATA = 4, + /* phy data reg bits */ + READ_EN = BIT(16), + WRITE_EN = BIT(17), + CAP_DATA = BIT(18), +}; + +struct oxnas_pcie_phy { + struct device *dev; + void __iomem *membase; + const struct phy_ops *ops; + struct regmap *sys_ctrl; +}; + +static int oxnas_pcie_phy_init(struct phy *phy) +{ + struct oxnas_pcie_phy *pciephy = phy_get_drvdata(phy); + struct reset_control *rstc; + int ret; + + /* generate clocks from HCSL buffers, shared parts */ + regmap_write(pciephy->sys_ctrl, SYS_CTRL_HCSL_CTRL_REGOFFSET, HCSL_BIAS_ON|HCSL_PCIE_EN); + + /* Ensure PCIe PHY is properly reset */ + rstc = reset_control_get(pciephy->dev, "phy"); + if (IS_ERR(rstc)) { + ret = PTR_ERR(rstc); + } else { + ret = reset_control_reset(rstc); + reset_control_put(rstc); + } + + if (ret) { + dev_err(pciephy->dev, "phy reset failed %d\n", ret); + return ret; + } + + return 0; +} + +static int oxnas_pcie_phy_power_on(struct phy *phy) +{ + struct oxnas_pcie_phy *pciephy = phy_get_drvdata(phy); + + /* Enable PCIe Pre-Emphasis: What these value means? */ + writel(ADDR_VAL(0x0014), pciephy->membase + PHY_ADDR); + writel(DATA_VAL(0xce10) | CAP_DATA, pciephy->membase + PHY_DATA); + writel(DATA_VAL(0xce10) | WRITE_EN, pciephy->membase + PHY_DATA); + + writel(ADDR_VAL(0x2004), pciephy->membase + PHY_ADDR); + writel(DATA_VAL(0x82c7) | CAP_DATA, pciephy->membase + PHY_DATA); + writel(DATA_VAL(0x82c7) | WRITE_EN, pciephy->membase + PHY_DATA); + + return 0; +} + +static const struct phy_ops ops = { + .init = oxnas_pcie_phy_init, + .power_on = oxnas_pcie_phy_power_on, + .owner = THIS_MODULE, +}; + +static int oxnas_pcie_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np = pdev->dev.of_node; + struct phy *generic_phy; + struct phy_provider *phy_provider; + struct oxnas_pcie_phy *pciephy; + struct regmap *sys_ctrl; + void __iomem *membase; + + membase = of_iomap(np, 0); + if (IS_ERR(membase)) + return PTR_ERR(membase); + + sys_ctrl = syscon_regmap_lookup_by_compatible("oxsemi,ox820-sys-ctrl"); + if (IS_ERR(sys_ctrl)) { + dev_err(dev, "Cannot find OX820 SYSCRTL\n"); + return PTR_ERR(sys_ctrl); + } + + pciephy = devm_kzalloc(dev, sizeof(*pciephy), GFP_KERNEL); + if (!pciephy) + return -ENOMEM; + + pciephy->sys_ctrl = sys_ctrl; + pciephy->membase = membase; + pciephy->dev = dev; + pciephy->ops = &ops; + + generic_phy = devm_phy_create(dev, dev->of_node, pciephy->ops); + if (IS_ERR(generic_phy)) { + dev_err(dev, "failed to create PHY\n"); + return PTR_ERR(generic_phy); + } + + phy_set_drvdata(generic_phy, pciephy); + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +} + +static const struct of_device_id oxnas_pcie_phy_id_table[] = { + { .compatible = "oxsemi,ox820-pcie-phy" }, + { }, +}; + +static struct platform_driver oxnas_pcie_phy_driver = { + .probe = oxnas_pcie_phy_probe, + .driver = { + .name = "ox820-pcie-phy", + .of_match_table = oxnas_pcie_phy_id_table, + }, +}; + +builtin_platform_driver(oxnas_pcie_phy_driver); diff --git a/target/linux/oxnas/files-4.14/phy/phy-oxnas-pcie.c b/target/linux/oxnas/files-4.14/phy/phy-oxnas-pcie.c deleted file mode 100644 index 676a5f9332..0000000000 --- a/target/linux/oxnas/files-4.14/phy/phy-oxnas-pcie.c +++ /dev/null @@ -1,150 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (c) 2019 Daniel Golle - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define ADDR_VAL(val) ((val) & 0xFFFF) -#define DATA_VAL(val) ((val) & 0xFFFF) - -#define SYS_CTRL_HCSL_CTRL_REGOFFSET 0x114 - -enum { - HCSL_BIAS_ON = BIT(0), - HCSL_PCIE_EN = BIT(1), - HCSL_PCIEA_EN = BIT(2), - HCSL_PCIEB_EN = BIT(3), -}; - -enum { - /* pcie phy reg offset */ - PHY_ADDR = 0, - PHY_DATA = 4, - /* phy data reg bits */ - READ_EN = BIT(16), - WRITE_EN = BIT(17), - CAP_DATA = BIT(18), -}; - -struct oxnas_pcie_phy { - struct device *dev; - void __iomem *membase; - const struct phy_ops *ops; - struct regmap *sys_ctrl; -}; - -static int oxnas_pcie_phy_init(struct phy *phy) -{ - struct oxnas_pcie_phy *pciephy = phy_get_drvdata(phy); - struct reset_control *rstc; - int ret; - - /* generate clocks from HCSL buffers, shared parts */ - regmap_write(pciephy->sys_ctrl, SYS_CTRL_HCSL_CTRL_REGOFFSET, HCSL_BIAS_ON|HCSL_PCIE_EN); - - /* Ensure PCIe PHY is properly reset */ - rstc = reset_control_get(pciephy->dev, "phy"); - if (IS_ERR(rstc)) { - ret = PTR_ERR(rstc); - } else { - ret = reset_control_reset(rstc); - reset_control_put(rstc); - } - - if (ret) { - dev_err(pciephy->dev, "phy reset failed %d\n", ret); - return ret; - } - - return 0; -} - -static int oxnas_pcie_phy_power_on(struct phy *phy) -{ - struct oxnas_pcie_phy *pciephy = phy_get_drvdata(phy); - - /* Enable PCIe Pre-Emphasis: What these value means? */ - writel(ADDR_VAL(0x0014), pciephy->membase + PHY_ADDR); - writel(DATA_VAL(0xce10) | CAP_DATA, pciephy->membase + PHY_DATA); - writel(DATA_VAL(0xce10) | WRITE_EN, pciephy->membase + PHY_DATA); - - writel(ADDR_VAL(0x2004), pciephy->membase + PHY_ADDR); - writel(DATA_VAL(0x82c7) | CAP_DATA, pciephy->membase + PHY_DATA); - writel(DATA_VAL(0x82c7) | WRITE_EN, pciephy->membase + PHY_DATA); - - return 0; -} - -static const struct phy_ops ops = { - .init = oxnas_pcie_phy_init, - .power_on = oxnas_pcie_phy_power_on, - .owner = THIS_MODULE, -}; - -static int oxnas_pcie_phy_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device_node *np = pdev->dev.of_node; - struct phy *generic_phy; - struct phy_provider *phy_provider; - struct oxnas_pcie_phy *pciephy; - struct regmap *sys_ctrl; - void __iomem *membase; - - membase = of_iomap(np, 0); - if (IS_ERR(membase)) - return PTR_ERR(membase); - - sys_ctrl = syscon_regmap_lookup_by_compatible("oxsemi,ox820-sys-ctrl"); - if (IS_ERR(sys_ctrl)) { - dev_err(dev, "Cannot find OX820 SYSCRTL\n"); - return PTR_ERR(sys_ctrl); - } - - pciephy = devm_kzalloc(dev, sizeof(*pciephy), GFP_KERNEL); - if (!pciephy) - return -ENOMEM; - - pciephy->sys_ctrl = sys_ctrl; - pciephy->membase = membase; - pciephy->dev = dev; - pciephy->ops = &ops; - - generic_phy = devm_phy_create(dev, dev->of_node, pciephy->ops); - if (IS_ERR(generic_phy)) { - dev_err(dev, "failed to create PHY\n"); - return PTR_ERR(generic_phy); - } - - phy_set_drvdata(generic_phy, pciephy); - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - - return PTR_ERR_OR_ZERO(phy_provider); -} - -static const struct of_device_id oxnas_pcie_phy_id_table[] = { - { .compatible = "oxsemi,ox820-pcie-phy" }, - { }, -}; - -static struct platform_driver oxnas_pcie_phy_driver = { - .probe = oxnas_pcie_phy_probe, - .driver = { - .name = "ox820-pcie-phy", - .of_match_table = oxnas_pcie_phy_id_table, - }, -}; - -builtin_platform_driver(oxnas_pcie_phy_driver); -- cgit v1.2.3