1 files changed, 137 insertions, 101 deletions

diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 2216b7f51d26..32d26cf17843 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -1,39 +1,13 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
 /*
- * Copyright 2008-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of Freescale Semiconductor nor the
- *       names of its contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Copyright 2008 - 2015 Freescale Semiconductor Inc.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include "fman_memac.h"
 #include "fman.h"
+#include "mac.h"
 
 #include <linux/slab.h>
 #include <linux/io.h>
@@ -337,7 +311,7 @@ struct fman_mac {
 	/* Ethernet physical interface */
 	phy_interface_t phy_if;
 	u16 max_speed;
-	void *dev_id; /* device cookie used by the exception cbs */
+	struct mac_device *dev_id; /* device cookie used by the exception cbs */
 	fman_mac_exception_cb *exception_cb;
 	fman_mac_exception_cb *event_cb;
 	/* Pointer to driver's global address hash table  */
@@ -712,7 +686,7 @@ static bool is_init_done(struct memac_cfg *memac_drv_params)
 	return false;
 }
 
-int memac_enable(struct fman_mac *memac, enum comm_mode mode)
+static int memac_enable(struct fman_mac *memac)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
@@ -721,36 +695,26 @@ int memac_enable(struct fman_mac *memac, enum comm_mode mode)
 		return -EINVAL;
 
 	tmp = ioread32be(&regs->command_config);
-	if (mode & COMM_MODE_RX)
-		tmp |= CMD_CFG_RX_EN;
-	if (mode & COMM_MODE_TX)
-		tmp |= CMD_CFG_TX_EN;
-
+	tmp |= CMD_CFG_RX_EN | CMD_CFG_TX_EN;
 	iowrite32be(tmp, &regs->command_config);
 
 	return 0;
 }
 
-int memac_disable(struct fman_mac *memac, enum comm_mode mode)
+static void memac_disable(struct fman_mac *memac)
+
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
 
-	if (!is_init_done(memac->memac_drv_param))
-		return -EINVAL;
+	WARN_ON_ONCE(!is_init_done(memac->memac_drv_param));
 
 	tmp = ioread32be(&regs->command_config);
-	if (mode & COMM_MODE_RX)
-		tmp &= ~CMD_CFG_RX_EN;
-	if (mode & COMM_MODE_TX)
-		tmp &= ~CMD_CFG_TX_EN;
-
+	tmp &= ~(CMD_CFG_RX_EN | CMD_CFG_TX_EN);
 	iowrite32be(tmp, &regs->command_config);
-
-	return 0;
 }
 
-int memac_set_promiscuous(struct fman_mac *memac, bool new_val)
+static int memac_set_promiscuous(struct fman_mac *memac, bool new_val)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
@@ -769,7 +733,7 @@ int memac_set_promiscuous(struct fman_mac *memac, bool new_val)
 	return 0;
 }
 
-int memac_adjust_link(struct fman_mac *memac, u16 speed)
+static int memac_adjust_link(struct fman_mac *memac, u16 speed)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
@@ -809,39 +773,26 @@ int memac_adjust_link(struct fman_mac *memac, u16 speed)
 	return 0;
 }
 
-int memac_cfg_max_frame_len(struct fman_mac *memac, u16 new_val)
-{
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
-
-	memac->memac_drv_param->max_frame_length = new_val;
-
-	return 0;
-}
-
-int memac_cfg_reset_on_init(struct fman_mac *memac, bool enable)
-{
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
-
-	memac->memac_drv_param->reset_on_init = enable;
-
-	return 0;
-}
-
-int memac_cfg_fixed_link(struct fman_mac *memac,
-			 struct fixed_phy_status *fixed_link)
+static void adjust_link_memac(struct mac_device *mac_dev)
 {
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
+	struct phy_device *phy_dev = mac_dev->phy_dev;
+	struct fman_mac *fman_mac;
+	bool rx_pause, tx_pause;
+	int err;
 
-	memac->memac_drv_param->fixed_link = fixed_link;
+	fman_mac = mac_dev->fman_mac;
+	memac_adjust_link(fman_mac, phy_dev->speed);
+	mac_dev->update_speed(mac_dev, phy_dev->speed);
 
-	return 0;
+	fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
+	err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
+	if (err < 0)
+		dev_err(mac_dev->dev, "fman_set_mac_active_pause() = %d\n",
+			err);
 }
 
-int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
-			      u16 pause_time, u16 thresh_time)
+static int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
+				     u16 pause_time, u16 thresh_time)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
@@ -878,7 +829,7 @@ int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
 	return 0;
 }
 
-int memac_accept_rx_pause_frames(struct fman_mac *memac, bool en)
+static int memac_accept_rx_pause_frames(struct fman_mac *memac, bool en)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
@@ -897,7 +848,8 @@ int memac_accept_rx_pause_frames(struct fman_mac *memac, bool en)
 	return 0;
 }
 
-int memac_modify_mac_address(struct fman_mac *memac, const enet_addr_t *enet_addr)
+static int memac_modify_mac_address(struct fman_mac *memac,
+				    const enet_addr_t *enet_addr)
 {
 	if (!is_init_done(memac->memac_drv_param))
 		return -EINVAL;
@@ -907,7 +859,8 @@ int memac_modify_mac_address(struct fman_mac *memac, const enet_addr_t *enet_add
 	return 0;
 }
 
-int memac_add_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr)
+static int memac_add_hash_mac_address(struct fman_mac *memac,
+				      enet_addr_t *eth_addr)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	struct eth_hash_entry *hash_entry;
@@ -940,7 +893,7 @@ int memac_add_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr)
 	return 0;
 }
 
-int memac_set_allmulti(struct fman_mac *memac, bool enable)
+static int memac_set_allmulti(struct fman_mac *memac, bool enable)
 {
 	u32 entry;
 	struct memac_regs __iomem *regs = memac->regs;
@@ -963,12 +916,13 @@ int memac_set_allmulti(struct fman_mac *memac, bool enable)
 	return 0;
 }
 
-int memac_set_tstamp(struct fman_mac *memac, bool enable)
+static int memac_set_tstamp(struct fman_mac *memac, bool enable)
 {
 	return 0; /* Always enabled. */
 }
 
-int memac_del_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr)
+static int memac_del_hash_mac_address(struct fman_mac *memac,
+				      enet_addr_t *eth_addr)
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	struct eth_hash_entry *hash_entry = NULL;
@@ -1001,8 +955,8 @@ int memac_del_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr)
 	return 0;
 }
 
-int memac_set_exception(struct fman_mac *memac,
-			enum fman_mac_exceptions exception, bool enable)
+static int memac_set_exception(struct fman_mac *memac,
+			       enum fman_mac_exceptions exception, bool enable)
 {
 	u32 bit_mask = 0;
 
@@ -1024,13 +978,13 @@ int memac_set_exception(struct fman_mac *memac,
 	return 0;
 }
 
-int memac_init(struct fman_mac *memac)
+static int memac_init(struct fman_mac *memac)
 {
 	struct memac_cfg *memac_drv_param;
 	u8 i;
 	enet_addr_t eth_addr;
 	bool slow_10g_if = false;
-	struct fixed_phy_status *fixed_link;
+	struct fixed_phy_status *fixed_link = NULL;
 	int err;
 	u32 reg32 = 0;
 
@@ -1141,7 +1095,7 @@ int memac_init(struct fman_mac *memac)
 	return 0;
 }
 
-int memac_free(struct fman_mac *memac)
+static int memac_free(struct fman_mac *memac)
 {
 	free_init_resources(memac);
 
@@ -1154,13 +1108,12 @@ int memac_free(struct fman_mac *memac)
 	return 0;
 }
 
-struct fman_mac *memac_config(struct fman_mac_params *params)
+static struct fman_mac *memac_config(struct mac_device *mac_dev,
+				     struct fman_mac_params *params)
 {
 	struct fman_mac *memac;
 	struct memac_cfg *memac_drv_param;
-	void __iomem *base_addr;
 
-	base_addr = params->base_addr;
 	/* allocate memory for the m_emac data structure */
 	memac = kzalloc(sizeof(*memac), GFP_KERNEL);
 	if (!memac)
@@ -1178,38 +1131,121 @@ struct fman_mac *memac_config(struct fman_mac_params *params)
 
 	set_dflts(memac_drv_param);
 
-	memac->addr = ENET_ADDR_TO_UINT64(params->addr);
+	memac->addr = ENET_ADDR_TO_UINT64(mac_dev->addr);
 
-	memac->regs = base_addr;
+	memac->regs = mac_dev->vaddr;
 	memac->max_speed = params->max_speed;
-	memac->phy_if = params->phy_if;
+	memac->phy_if = mac_dev->phy_if;
 	memac->mac_id = params->mac_id;
 	memac->exceptions = (MEMAC_IMASK_TSECC_ER | MEMAC_IMASK_TECC_ER |
 			     MEMAC_IMASK_RECC_ER | MEMAC_IMASK_MGI);
 	memac->exception_cb = params->exception_cb;
 	memac->event_cb = params->event_cb;
-	memac->dev_id = params->dev_id;
+	memac->dev_id = mac_dev;
 	memac->fm = params->fm;
 	memac->basex_if = params->basex_if;
 
 	/* Save FMan revision */
 	fman_get_revision(memac->fm, &memac->fm_rev_info);
 
+	return memac;
+}
+
+int memac_initialization(struct mac_device *mac_dev,
+			 struct device_node *mac_node,
+			 struct fman_mac_params *params)
+{
+	int			 err;
+	struct device_node	*phy_node;
+	struct fixed_phy_status *fixed_link;
+	struct fman_mac		*memac;
+
+	mac_dev->set_promisc		= memac_set_promiscuous;
+	mac_dev->change_addr		= memac_modify_mac_address;
+	mac_dev->add_hash_mac_addr	= memac_add_hash_mac_address;
+	mac_dev->remove_hash_mac_addr	= memac_del_hash_mac_address;
+	mac_dev->set_tx_pause		= memac_set_tx_pause_frames;
+	mac_dev->set_rx_pause		= memac_accept_rx_pause_frames;
+	mac_dev->set_exception		= memac_set_exception;
+	mac_dev->set_allmulti		= memac_set_allmulti;
+	mac_dev->set_tstamp		= memac_set_tstamp;
+	mac_dev->set_multi		= fman_set_multi;
+	mac_dev->adjust_link            = adjust_link_memac;
+	mac_dev->enable			= memac_enable;
+	mac_dev->disable		= memac_disable;
+
+	if (params->max_speed == SPEED_10000)
+		mac_dev->phy_if = PHY_INTERFACE_MODE_XGMII;
+
+	mac_dev->fman_mac = memac_config(mac_dev, params);
+	if (!mac_dev->fman_mac) {
+		err = -EINVAL;
+		goto _return;
+	}
+
+	memac = mac_dev->fman_mac;
+	memac->memac_drv_param->max_frame_length = fman_get_max_frm();
+	memac->memac_drv_param->reset_on_init = true;
 	if (memac->phy_if == PHY_INTERFACE_MODE_SGMII ||
 	    memac->phy_if == PHY_INTERFACE_MODE_QSGMII) {
-		if (!params->internal_phy_node) {
+		phy_node = of_parse_phandle(mac_node, "pcsphy-handle", 0);
+		if (!phy_node) {
 			pr_err("PCS PHY node is not available\n");
-			memac_free(memac);
-			return NULL;
+			err = -EINVAL;
+			goto _return_fm_mac_free;
 		}
 
-		memac->pcsphy = of_phy_find_device(params->internal_phy_node);
+		memac->pcsphy = of_phy_find_device(phy_node);
 		if (!memac->pcsphy) {
 			pr_err("of_phy_find_device (PCS PHY) failed\n");
-			memac_free(memac);
-			return NULL;
+			err = -EINVAL;
+			goto _return_fm_mac_free;
 		}
 	}
 
-	return memac;
+	if (!mac_dev->phy_node && of_phy_is_fixed_link(mac_node)) {
+		struct phy_device *phy;
+
+		err = of_phy_register_fixed_link(mac_node);
+		if (err)
+			goto _return_fm_mac_free;
+
+		fixed_link = kzalloc(sizeof(*fixed_link), GFP_KERNEL);
+		if (!fixed_link) {
+			err = -ENOMEM;
+			goto _return_fm_mac_free;
+		}
+
+		mac_dev->phy_node = of_node_get(mac_node);
+		phy = of_phy_find_device(mac_dev->phy_node);
+		if (!phy) {
+			err = -EINVAL;
+			of_node_put(mac_dev->phy_node);
+			goto _return_fixed_link_free;
+		}
+
+		fixed_link->link = phy->link;
+		fixed_link->speed = phy->speed;
+		fixed_link->duplex = phy->duplex;
+		fixed_link->pause = phy->pause;
+		fixed_link->asym_pause = phy->asym_pause;
+
+		put_device(&phy->mdio.dev);
+		memac->memac_drv_param->fixed_link = fixed_link;
+	}
+
+	err = memac_init(mac_dev->fman_mac);
+	if (err < 0)
+		goto _return_fixed_link_free;
+
+	dev_info(mac_dev->dev, "FMan MEMAC\n");
+
+	goto _return;
+
+_return_fixed_link_free:
+	kfree(fixed_link);
+_return_fm_mac_free:
+	memac_free(mac_dev->fman_mac);
+_return:
+	return err;
 }