diff options
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw-phy-sel.c')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw-phy-sel.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c deleted file mode 100644 index 148da9a..0000000 --- a/drivers/net/ethernet/ti/cpsw-phy-sel.c +++ /dev/null @@ -1,161 +0,0 @@ -/* Texas Instruments Ethernet Switch Driver - * - * Copyright (C) 2013 Texas Instruments - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/phy.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include "cpsw.h" - -/* AM33xx SoC specific definitions for the CONTROL port */ -#define AM33XX_GMII_SEL_MODE_MII 0 -#define AM33XX_GMII_SEL_MODE_RMII 1 -#define AM33XX_GMII_SEL_MODE_RGMII 2 - -#define AM33XX_GMII_SEL_RMII2_IO_CLK_EN BIT(7) -#define AM33XX_GMII_SEL_RMII1_IO_CLK_EN BIT(6) - -struct cpsw_phy_sel_priv { - struct device *dev; - u32 __iomem *gmii_sel; - bool rmii_clock_external; - void (*cpsw_phy_sel)(struct cpsw_phy_sel_priv *priv, - phy_interface_t phy_mode, int slave); -}; - - -static void cpsw_gmii_sel_am3352(struct cpsw_phy_sel_priv *priv, - phy_interface_t phy_mode, int slave) -{ - u32 reg; - u32 mask; - u32 mode = 0; - - reg = readl(priv->gmii_sel); - - switch (phy_mode) { - case PHY_INTERFACE_MODE_RMII: - mode = AM33XX_GMII_SEL_MODE_RMII; - break; - - case PHY_INTERFACE_MODE_RGMII: - case PHY_INTERFACE_MODE_RGMII_ID: - case PHY_INTERFACE_MODE_RGMII_RXID: - case PHY_INTERFACE_MODE_RGMII_TXID: - mode = AM33XX_GMII_SEL_MODE_RGMII; - break; - - case PHY_INTERFACE_MODE_MII: - default: - mode = AM33XX_GMII_SEL_MODE_MII; - break; - }; - - mask = 0x3 << (slave * 2) | BIT(slave + 6); - mode <<= slave * 2; - - if (priv->rmii_clock_external) { - if (slave == 0) - mode |= AM33XX_GMII_SEL_RMII1_IO_CLK_EN; - else - mode |= AM33XX_GMII_SEL_RMII2_IO_CLK_EN; - } - - reg &= ~mask; - reg |= mode; - - writel(reg, priv->gmii_sel); -} - -static struct platform_driver cpsw_phy_sel_driver; -static int match(struct device *dev, void *data) -{ - struct device_node *node = (struct device_node *)data; - return dev->of_node == node && - dev->driver == &cpsw_phy_sel_driver.driver; -} - -void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave) -{ - struct device_node *node; - struct cpsw_phy_sel_priv *priv; - - node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel"); - if (!node) { - dev_err(dev, "Phy mode driver DT not found\n"); - return; - } - - dev = bus_find_device(&platform_bus_type, NULL, node, match); - priv = dev_get_drvdata(dev); - - priv->cpsw_phy_sel(priv, phy_mode, slave); -} -EXPORT_SYMBOL_GPL(cpsw_phy_sel); - -static const struct of_device_id cpsw_phy_sel_id_table[] = { - { - .compatible = "ti,am3352-cpsw-phy-sel", - .data = &cpsw_gmii_sel_am3352, - }, - {} -}; -MODULE_DEVICE_TABLE(of, cpsw_phy_sel_id_table); - -static int cpsw_phy_sel_probe(struct platform_device *pdev) -{ - struct resource *res; - const struct of_device_id *of_id; - struct cpsw_phy_sel_priv *priv; - - of_id = of_match_node(cpsw_phy_sel_id_table, pdev->dev.of_node); - if (!of_id) - return -EINVAL; - - priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(&pdev->dev, "unable to alloc memory for cpsw phy sel\n"); - return -ENOMEM; - } - - priv->cpsw_phy_sel = of_id->data; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gmii-sel"); - priv->gmii_sel = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(priv->gmii_sel)) - return PTR_ERR(priv->gmii_sel); - - if (of_find_property(pdev->dev.of_node, "rmii-clock-ext", NULL)) - priv->rmii_clock_external = true; - - dev_set_drvdata(&pdev->dev, priv); - - return 0; -} - -static struct platform_driver cpsw_phy_sel_driver = { - .probe = cpsw_phy_sel_probe, - .driver = { - .name = "cpsw-phy-sel", - .owner = THIS_MODULE, - .of_match_table = cpsw_phy_sel_id_table, - }, -}; - -module_platform_driver(cpsw_phy_sel_driver); -MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>"); -MODULE_LICENSE("GPL v2"); |