From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 266 +++++++++++++++++++++++++++++++++++++---------------
1 files changed, 189 insertions(+), 77 deletions(-)
diff --git a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 9d47311..de691d4 100644
--- a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -1,24 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*******************************************************************************
This contains the functions to handle the platform driver.
Copyright (C) 2007-2011 STMicroelectronics Ltd
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- The full GNU General Public License is included in this distribution in
- the file called "COPYING".
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -33,6 +24,7 @@
/**
* dwmac1000_validate_mcast_bins - validates the number of Multicast filter bins
+ * @dev: struct device of the platform device
* @mcast_bins: Multicast filtering bins
* Description:
* this function validates the number of Multicast filtering bins specified
@@ -43,7 +35,7 @@
* invalid and will cause the filtering algorithm to use Multicast
* promiscuous mode.
*/
-static int dwmac1000_validate_mcast_bins(int mcast_bins)
+static int dwmac1000_validate_mcast_bins(struct device *dev, int mcast_bins)
{
int x = mcast_bins;
@@ -54,8 +46,8 @@
break;
default:
x = 0;
- pr_info("Hash table entries set to unexpected value %d",
- mcast_bins);
+ dev_info(dev, "Hash table entries set to unexpected value %d\n",
+ mcast_bins);
break;
}
return x;
@@ -63,6 +55,7 @@
/**
* dwmac1000_validate_ucast_entries - validate the Unicast address entries
+ * @dev: struct device of the platform device
* @ucast_entries: number of Unicast address entries
* Description:
* This function validates the number of Unicast address entries supported
@@ -72,7 +65,8 @@
* selected, and defaults to 1 Unicast address if an unsupported
* configuration is selected.
*/
-static int dwmac1000_validate_ucast_entries(int ucast_entries)
+static int dwmac1000_validate_ucast_entries(struct device *dev,
+ int ucast_entries)
{
int x = ucast_entries;
@@ -83,8 +77,8 @@
break;
default:
x = 1;
- pr_info("Unicast table entries set to unexpected value %d\n",
- ucast_entries);
+ dev_info(dev, "Unicast table entries set to unexpected value %d\n",
+ ucast_entries);
break;
}
return x;
@@ -114,10 +108,10 @@
axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
- axi->axi_kbbe = of_property_read_bool(np, "snps,axi_kbbe");
- axi->axi_fb = of_property_read_bool(np, "snps,axi_fb");
- axi->axi_mb = of_property_read_bool(np, "snps,axi_mb");
- axi->axi_rb = of_property_read_bool(np, "snps,axi_rb");
+ axi->axi_kbbe = of_property_read_bool(np, "snps,kbbe");
+ axi->axi_fb = of_property_read_bool(np, "snps,fb");
+ axi->axi_mb = of_property_read_bool(np, "snps,mb");
+ axi->axi_rb = of_property_read_bool(np, "snps,rb");
if (of_property_read_u32(np, "snps,wr_osr_lmt", &axi->axi_wr_osr_lmt))
axi->axi_wr_osr_lmt = 1;
@@ -132,6 +126,7 @@
/**
* stmmac_mtl_setup - parse DT parameters for multiple queues configuration
* @pdev: platform device
+ * @plat: enet data
*/
static int stmmac_mtl_setup(struct platform_device *pdev,
struct plat_stmmacenet_data *plat)
@@ -327,26 +322,11 @@
static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
struct device_node *np, struct device *dev)
{
- bool mdio = true;
+ bool mdio = !of_phy_is_fixed_link(np);
static const struct of_device_id need_mdio_ids[] = {
{ .compatible = "snps,dwc-qos-ethernet-4.10" },
{},
};
-
- /* If phy-handle property is passed from DT, use it as the PHY */
- plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
- if (plat->phy_node)
- dev_dbg(dev, "Found phy-handle subnode\n");
-
- /* If phy-handle is not specified, check if we have a fixed-phy */
- if (!plat->phy_node && of_phy_is_fixed_link(np)) {
- if ((of_phy_register_fixed_link(np) < 0))
- return -ENODEV;
-
- dev_dbg(dev, "Found fixed-link subnode\n");
- plat->phy_node = of_node_get(np);
- mdio = false;
- }
if (of_match_node(need_mdio_ids, np)) {
plat->mdio_node = of_get_child_by_name(np, "mdio");
@@ -367,11 +347,43 @@
mdio = true;
}
- if (mdio)
+ if (mdio) {
plat->mdio_bus_data =
devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data),
GFP_KERNEL);
+ if (!plat->mdio_bus_data)
+ return -ENOMEM;
+
+ plat->mdio_bus_data->needs_reset = true;
+ }
+
return 0;
+}
+
+/**
+ * stmmac_of_get_mac_mode - retrieves the interface of the MAC
+ * @np: - device-tree node
+ * Description:
+ * Similar to `of_get_phy_mode()`, this function will retrieve (from
+ * the device-tree) the interface mode on the MAC side. This assumes
+ * that there is mode converter in-between the MAC & PHY
+ * (e.g. GMII-to-RGMII).
+ */
+static int stmmac_of_get_mac_mode(struct device_node *np)
+{
+ const char *pm;
+ int err, i;
+
+ err = of_property_read_string(np, "mac-mode", &pm);
+ if (err < 0)
+ return err;
+
+ for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++) {
+ if (!strcasecmp(pm, phy_modes(i)))
+ return i;
+ }
+
+ return -ENODEV;
}
/**
@@ -388,6 +400,7 @@
struct device_node *np = pdev->dev.of_node;
struct plat_stmmacenet_data *plat;
struct stmmac_dma_cfg *dma_cfg;
+ int phy_mode;
int rc;
plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
@@ -395,11 +408,31 @@
return ERR_PTR(-ENOMEM);
*mac = of_get_mac_address(np);
- plat->interface = of_get_phy_mode(np);
+ if (IS_ERR(*mac)) {
+ if (PTR_ERR(*mac) == -EPROBE_DEFER)
+ return ERR_CAST(*mac);
+
+ *mac = NULL;
+ }
+
+ phy_mode = device_get_phy_mode(&pdev->dev);
+ if (phy_mode < 0)
+ return ERR_PTR(phy_mode);
+
+ plat->phy_interface = phy_mode;
+ plat->interface = stmmac_of_get_mac_mode(np);
+ if (plat->interface < 0)
+ plat->interface = plat->phy_interface;
+
+ /* Some wrapper drivers still rely on phy_node. Let's save it while
+ * they are not converted to phylink. */
+ plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
+
+ /* PHYLINK automatically parses the phy-handle property */
+ plat->phylink_node = np;
/* Get max speed of operation from device tree */
- if (of_property_read_u32(np, "max-speed", &plat->max_speed))
- plat->max_speed = -1;
+ of_property_read_u32(np, "max-speed", &plat->max_speed);
plat->bus_id = of_alias_get_id(np, "ethernet");
if (plat->bus_id < 0)
@@ -407,6 +440,12 @@
/* Default to phy auto-detection */
plat->phy_addr = -1;
+
+ /* Default to get clk_csr from stmmac_clk_crs_set(),
+ * or get clk_csr from device tree.
+ */
+ plat->clk_csr = -1;
+ of_property_read_u32(np, "clk_csr", &plat->clk_csr);
/* "snps,phy-addr" is not a standard property. Mark it as deprecated
* and warn of its use. Remove this when phy node support is added.
@@ -422,6 +461,9 @@
of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);
of_property_read_u32(np, "rx-fifo-depth", &plat->rx_fifo_size);
+
+ of_property_read_u32(np, "tx-dma-size", &plat->dma_tx_size);
+ of_property_read_u32(np, "rx-dma-size", &plat->dma_rx_size);
plat->force_sf_dma_mode =
of_property_read_bool(np, "snps,force_sf_dma_mode");
@@ -462,9 +504,9 @@
of_property_read_u32(np, "snps,perfect-filter-entries",
&plat->unicast_filter_entries);
plat->unicast_filter_entries = dwmac1000_validate_ucast_entries(
- plat->unicast_filter_entries);
+ &pdev->dev, plat->unicast_filter_entries);
plat->multicast_filter_bins = dwmac1000_validate_mcast_bins(
- plat->multicast_filter_bins);
+ &pdev->dev, plat->multicast_filter_bins);
plat->has_gmac = 1;
plat->pmt = 1;
}
@@ -479,7 +521,8 @@
if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
of_device_is_compatible(np, "snps,dwmac-4.10a") ||
- of_device_is_compatible(np, "snps,dwmac-4.20a")) {
+ of_device_is_compatible(np, "snps,dwmac-4.20a") ||
+ of_device_is_compatible(np, "snps,dwmac-5.10a")) {
plat->has_gmac4 = 1;
plat->has_gmac = 0;
plat->pmt = 1;
@@ -519,12 +562,16 @@
dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
- if (plat->force_thresh_dma_mode) {
+ if (plat->force_thresh_dma_mode && plat->force_sf_dma_mode) {
plat->force_sf_dma_mode = 0;
- pr_warn("force_sf_dma_mode is ignored if force_thresh_dma_mode is set.");
+ dev_warn(&pdev->dev,
+ "force_sf_dma_mode is ignored if force_thresh_dma_mode is set.\n");
}
of_property_read_u32(np, "snps,ps-speed", &plat->mac_port_sel_speed);
+
+ if (of_property_read_u32(np, "snps,flow-ctrl", &plat->flow_ctrl))
+ plat->flow_ctrl = FLOW_AUTO;
plat->axi = stmmac_axi_setup(pdev);
@@ -535,13 +582,15 @@
}
/* clock setup */
- plat->stmmac_clk = devm_clk_get(&pdev->dev,
- STMMAC_RESOURCE_NAME);
- if (IS_ERR(plat->stmmac_clk)) {
- dev_warn(&pdev->dev, "Cannot get CSR clock\n");
- plat->stmmac_clk = NULL;
+ if (!of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) {
+ plat->stmmac_clk = devm_clk_get(&pdev->dev,
+ STMMAC_RESOURCE_NAME);
+ if (IS_ERR(plat->stmmac_clk)) {
+ dev_warn(&pdev->dev, "Cannot get CSR clock\n");
+ plat->stmmac_clk = NULL;
+ }
+ clk_prepare_enable(plat->stmmac_clk);
}
- clk_prepare_enable(plat->stmmac_clk);
plat->pclk = devm_clk_get(&pdev->dev, "pclk_mac");
if (IS_ERR(plat->pclk)) {
@@ -557,7 +606,7 @@
if (IS_ERR(plat->clk_ptp_ref)) {
plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
plat->clk_ptp_ref = NULL;
- dev_warn(&pdev->dev, "PTP uses main clock\n");
+ dev_info(&pdev->dev, "PTP uses main clock\n");
} else {
plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
@@ -593,10 +642,8 @@
void stmmac_remove_config_dt(struct platform_device *pdev,
struct plat_stmmacenet_data *plat)
{
- struct device_node *np = pdev->dev.of_node;
-
- if (of_phy_is_fixed_link(np))
- of_phy_deregister_fixed_link(np);
+ clk_disable_unprepare(plat->stmmac_clk);
+ clk_disable_unprepare(plat->pclk);
of_node_put(plat->phy_node);
of_node_put(plat->mdio_node);
}
@@ -618,21 +665,14 @@
int stmmac_get_platform_resources(struct platform_device *pdev,
struct stmmac_resources *stmmac_res)
{
- struct resource *res;
-
memset(stmmac_res, 0, sizeof(*stmmac_res));
/* Get IRQ information early to have an ability to ask for deferred
* probe if needed before we went too far with resource allocation.
*/
stmmac_res->irq = platform_get_irq_byname(pdev, "macirq");
- if (stmmac_res->irq < 0) {
- if (stmmac_res->irq != -EPROBE_DEFER) {
- dev_err(&pdev->dev,
- "MAC IRQ configuration information not found\n");
- }
+ if (stmmac_res->irq < 0)
return stmmac_res->irq;
- }
/* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
* The external wake up irq can be passed through the platform code
@@ -641,19 +681,24 @@
* In case the wake up interrupt is not passed from the platform
* so the driver will continue to use the mac irq (ndev->irq)
*/
- stmmac_res->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
+ stmmac_res->wol_irq =
+ platform_get_irq_byname_optional(pdev, "eth_wake_irq");
if (stmmac_res->wol_irq < 0) {
if (stmmac_res->wol_irq == -EPROBE_DEFER)
return -EPROBE_DEFER;
+ dev_info(&pdev->dev, "IRQ eth_wake_irq not found\n");
stmmac_res->wol_irq = stmmac_res->irq;
}
- stmmac_res->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
- if (stmmac_res->lpi_irq == -EPROBE_DEFER)
- return -EPROBE_DEFER;
+ stmmac_res->lpi_irq =
+ platform_get_irq_byname_optional(pdev, "eth_lpi");
+ if (stmmac_res->lpi_irq < 0) {
+ if (stmmac_res->lpi_irq == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_info(&pdev->dev, "IRQ eth_lpi not found\n");
+ }
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- stmmac_res->addr = devm_ioremap_resource(&pdev->dev, res);
+ stmmac_res->addr = devm_platform_ioremap_resource(pdev, 0);
return PTR_ERR_OR_ZERO(stmmac_res->addr);
}
@@ -681,7 +726,6 @@
}
EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
-#ifdef CONFIG_PM_SLEEP
/**
* stmmac_pltfr_suspend
* @dev: device pointer
@@ -689,7 +733,7 @@
* call the main suspend function and then, if required, on some platform, it
* can call an exit helper.
*/
-static int stmmac_pltfr_suspend(struct device *dev)
+static int __maybe_unused stmmac_pltfr_suspend(struct device *dev)
{
int ret;
struct net_device *ndev = dev_get_drvdata(dev);
@@ -710,7 +754,7 @@
* the main resume function, on some platforms, it can call own init helper
* if required.
*/
-static int stmmac_pltfr_resume(struct device *dev)
+static int __maybe_unused stmmac_pltfr_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
struct stmmac_priv *priv = netdev_priv(ndev);
@@ -721,10 +765,78 @@
return stmmac_resume(dev);
}
-#endif /* CONFIG_PM_SLEEP */
-SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops, stmmac_pltfr_suspend,
- stmmac_pltfr_resume);
+static int __maybe_unused stmmac_runtime_suspend(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+
+ stmmac_bus_clks_config(priv, false);
+
+ return 0;
+}
+
+static int __maybe_unused stmmac_runtime_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+
+ return stmmac_bus_clks_config(priv, true);
+}
+
+static int __maybe_unused stmmac_pltfr_noirq_suspend(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+ int ret;
+
+ if (!netif_running(ndev))
+ return 0;
+
+ if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+ /* Disable clock in case of PWM is off */
+ clk_disable_unprepare(priv->plat->clk_ptp_ref);
+
+ ret = pm_runtime_force_suspend(dev);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused stmmac_pltfr_noirq_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+ int ret;
+
+ if (!netif_running(ndev))
+ return 0;
+
+ if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+ /* enable the clk previously disabled */
+ ret = pm_runtime_force_resume(dev);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
+ if (ret < 0) {
+ netdev_warn(priv->dev,
+ "failed to enable PTP reference clock: %pe\n",
+ ERR_PTR(ret));
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+const struct dev_pm_ops stmmac_pltfr_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
+ SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_noirq_suspend, stmmac_pltfr_noirq_resume)
+};
EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
--
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