| Message ID | 20240513-rzn1-gmac1-v7-6-6acf58b5440d@bootlin.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | net: stmmac: Add support for RZN1 GMAC devices | expand |
> Subject: [EXTERNAL] [PATCH net-next v7 6/7] net: stmmac: add support for > RZ/N1 GMAC > > Prioritize security for external emails: Confirm sender and content safety > before clicking links or opening attachments > > ---------------------------------------------------------------------- > From: Clément Léger <clement.leger@bootlin.com> > > Add support for the Renesas RZ/N1 GMAC. This support can make use of a > custom RZ/N1 PCS which is fetched by parsing the pcs-handle device tree > property. > > Signed-off-by: Clément Léger <clement.leger@bootlin.com> > Co-developed-by: Romain Gantois <romain.gantois@bootlin.com> > Signed-off-by: Romain Gantois <romain.gantois@bootlin.com> > Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> > --- > MAINTAINERS | 6 ++ > drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++++ > drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + > drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c | 86 > ++++++++++++++++++++++++ > 4 files changed, 105 insertions(+) > > diff --git a/MAINTAINERS b/MAINTAINERS > index b81b2be60b774..95bb09aacf181 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -18868,6 +18868,12 @@ F: include/dt-bindings/net/pcs-rzn1- > miic.h > F: include/linux/pcs-rzn1-miic.h > F: net/dsa/tag_rzn1_a5psw.c > > +RENESAS RZ/N1 DWMAC GLUE LAYER > +M: Romain Gantois <romain.gantois@bootlin.com> > +S: Maintained > +F: Documentation/devicetree/bindings/net/renesas,rzn1-gmac.yaml > +F: drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c > + > RENESAS RZ/N1 RTC CONTROLLER DRIVER > M: Miquel Raynal <miquel.raynal@bootlin.com> > L: linux-rtc@vger.kernel.org > diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig > b/drivers/net/ethernet/stmicro/stmmac/Kconfig > index 4ec61f1ee71a2..05cc07b8f48c0 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig > +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig > @@ -142,6 +142,18 @@ config DWMAC_ROCKCHIP > This selects the Rockchip RK3288 SoC glue layer support for > the stmmac device driver. > > +config DWMAC_RZN1 > + tristate "Renesas RZ/N1 dwmac support" > + default ARCH_RZN1 > + depends on OF && (ARCH_RZN1 || COMPILE_TEST) > + select PCS_RZN1_MIIC > + help > + Support for Ethernet controller on Renesas RZ/N1 SoC family. > + > + This selects the Renesas RZ/N1 SoC glue layer support for > + the stmmac device driver. This support can make use of a custom > MII > + converter PCS device. > + > config DWMAC_SOCFPGA > tristate "SOCFPGA dwmac support" > default ARCH_INTEL_SOCFPGA > diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile > b/drivers/net/ethernet/stmicro/stmmac/Makefile > index 26cad4344701e..c2f0e91f6bf83 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/Makefile > +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile > @@ -21,6 +21,7 @@ obj-$(CONFIG_DWMAC_MEDIATEK) += dwmac- > mediatek.o > obj-$(CONFIG_DWMAC_MESON) += dwmac-meson.o dwmac- > meson8b.o > obj-$(CONFIG_DWMAC_QCOM_ETHQOS) += dwmac-qcom-ethqos.o > obj-$(CONFIG_DWMAC_ROCKCHIP) += dwmac-rk.o > +obj-$(CONFIG_DWMAC_RZN1) += dwmac-rzn1.o > obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o > obj-$(CONFIG_DWMAC_STARFIVE) += dwmac-starfive.o > obj-$(CONFIG_DWMAC_STI) += dwmac-sti.o > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c > b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c > new file mode 100644 > index 0000000000000..848cf3c01f4ab > --- /dev/null > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c > @@ -0,0 +1,86 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (C) 2024 Schneider-Electric > + * > + * Clément Léger <clement.leger@bootlin.com> */ > + > +#include <linux/of.h> > +#include <linux/pcs-rzn1-miic.h> > +#include <linux/phylink.h> > +#include <linux/platform_device.h> > + > +#include "stmmac_platform.h" > +#include "stmmac.h" > + > +static int rzn1_dwmac_pcs_init(struct stmmac_priv *priv) { > + struct device_node *np = priv->device->of_node; > + struct device_node *pcs_node; > + struct phylink_pcs *pcs; > + > + pcs_node = of_parse_phandle(np, "pcs-handle", 0); > + > + if (pcs_node) { > + pcs = miic_create(priv->device, pcs_node); > + of_node_put(pcs_node); > + if (IS_ERR(pcs)) > + return PTR_ERR(pcs); > + > + priv->hw->phylink_pcs = pcs; > + } > + > + return 0; > +} > + > +static void rzn1_dwmac_pcs_exit(struct stmmac_priv *priv) { > + if (priv->hw->phylink_pcs) > + miic_destroy(priv->hw->phylink_pcs); > +} > + > +static int rzn1_dwmac_probe(struct platform_device *pdev) { > + struct plat_stmmacenet_data *plat_dat; > + struct stmmac_resources stmmac_res; > + struct device *dev = &pdev->dev; > + int ret; > + > + ret = stmmac_get_platform_resources(pdev, &stmmac_res); > + if (ret) > + return ret; > + > + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); > + if (IS_ERR(plat_dat)) > + return PTR_ERR(plat_dat); > + > + plat_dat->bsp_priv = plat_dat; > + plat_dat->pcs_init = rzn1_dwmac_pcs_init; > + plat_dat->pcs_exit = rzn1_dwmac_pcs_exit; > + > + ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); > + if (ret) > + return ret; > + > + return 0; > +} > + > +static const struct of_device_id rzn1_dwmac_match[] = { > + { .compatible = "renesas,rzn1-gmac" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, rzn1_dwmac_match); > + > +static struct platform_driver rzn1_dwmac_driver = { > + .probe = rzn1_dwmac_probe, > + .remove_new = stmmac_pltfr_remove, > + .driver = { > + .name = "rzn1-dwmac", > + .of_match_table = rzn1_dwmac_match, > + }, > +}; > +module_platform_driver(rzn1_dwmac_driver); > + > +MODULE_AUTHOR("Clément Léger <clement.leger@bootlin.com>"); > +MODULE_DESCRIPTION("Renesas RZN1 DWMAC specific glue layer"); > +MODULE_LICENSE("GPL"); > > -- > 2.44.0 > Reviewed-by: Hariprasad Kelam <hkelam@marvell.com>
diff --git a/MAINTAINERS b/MAINTAINERS index b81b2be60b774..95bb09aacf181 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -18868,6 +18868,12 @@ F: include/dt-bindings/net/pcs-rzn1-miic.h F: include/linux/pcs-rzn1-miic.h F: net/dsa/tag_rzn1_a5psw.c +RENESAS RZ/N1 DWMAC GLUE LAYER +M: Romain Gantois <romain.gantois@bootlin.com> +S: Maintained +F: Documentation/devicetree/bindings/net/renesas,rzn1-gmac.yaml +F: drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c + RENESAS RZ/N1 RTC CONTROLLER DRIVER M: Miquel Raynal <miquel.raynal@bootlin.com> L: linux-rtc@vger.kernel.org diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 4ec61f1ee71a2..05cc07b8f48c0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -142,6 +142,18 @@ config DWMAC_ROCKCHIP This selects the Rockchip RK3288 SoC glue layer support for the stmmac device driver. +config DWMAC_RZN1 + tristate "Renesas RZ/N1 dwmac support" + default ARCH_RZN1 + depends on OF && (ARCH_RZN1 || COMPILE_TEST) + select PCS_RZN1_MIIC + help + Support for Ethernet controller on Renesas RZ/N1 SoC family. + + This selects the Renesas RZ/N1 SoC glue layer support for + the stmmac device driver. This support can make use of a custom MII + converter PCS device. + config DWMAC_SOCFPGA tristate "SOCFPGA dwmac support" default ARCH_INTEL_SOCFPGA diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 26cad4344701e..c2f0e91f6bf83 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_DWMAC_MEDIATEK) += dwmac-mediatek.o obj-$(CONFIG_DWMAC_MESON) += dwmac-meson.o dwmac-meson8b.o obj-$(CONFIG_DWMAC_QCOM_ETHQOS) += dwmac-qcom-ethqos.o obj-$(CONFIG_DWMAC_ROCKCHIP) += dwmac-rk.o +obj-$(CONFIG_DWMAC_RZN1) += dwmac-rzn1.o obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o obj-$(CONFIG_DWMAC_STARFIVE) += dwmac-starfive.o obj-$(CONFIG_DWMAC_STI) += dwmac-sti.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c new file mode 100644 index 0000000000000..848cf3c01f4ab --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2024 Schneider-Electric + * + * Clément Léger <clement.leger@bootlin.com> + */ + +#include <linux/of.h> +#include <linux/pcs-rzn1-miic.h> +#include <linux/phylink.h> +#include <linux/platform_device.h> + +#include "stmmac_platform.h" +#include "stmmac.h" + +static int rzn1_dwmac_pcs_init(struct stmmac_priv *priv) +{ + struct device_node *np = priv->device->of_node; + struct device_node *pcs_node; + struct phylink_pcs *pcs; + + pcs_node = of_parse_phandle(np, "pcs-handle", 0); + + if (pcs_node) { + pcs = miic_create(priv->device, pcs_node); + of_node_put(pcs_node); + if (IS_ERR(pcs)) + return PTR_ERR(pcs); + + priv->hw->phylink_pcs = pcs; + } + + return 0; +} + +static void rzn1_dwmac_pcs_exit(struct stmmac_priv *priv) +{ + if (priv->hw->phylink_pcs) + miic_destroy(priv->hw->phylink_pcs); +} + +static int rzn1_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + struct device *dev = &pdev->dev; + int ret; + + ret = stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return ret; + + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + + plat_dat->bsp_priv = plat_dat; + plat_dat->pcs_init = rzn1_dwmac_pcs_init; + plat_dat->pcs_exit = rzn1_dwmac_pcs_exit; + + ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id rzn1_dwmac_match[] = { + { .compatible = "renesas,rzn1-gmac" }, + { } +}; +MODULE_DEVICE_TABLE(of, rzn1_dwmac_match); + +static struct platform_driver rzn1_dwmac_driver = { + .probe = rzn1_dwmac_probe, + .remove_new = stmmac_pltfr_remove, + .driver = { + .name = "rzn1-dwmac", + .of_match_table = rzn1_dwmac_match, + }, +}; +module_platform_driver(rzn1_dwmac_driver); + +MODULE_AUTHOR("Clément Léger <clement.leger@bootlin.com>"); +MODULE_DESCRIPTION("Renesas RZN1 DWMAC specific glue layer"); +MODULE_LICENSE("GPL");