From nobody Thu Dec 18 06:14:13 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD82AC83F17 for ; Sun, 27 Aug 2023 09:30:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230337AbjH0J3n (ORCPT ); Sun, 27 Aug 2023 05:29:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230072AbjH0J3I (ORCPT ); Sun, 27 Aug 2023 05:29:08 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E546E1; Sun, 27 Aug 2023 02:29:05 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3552F62AD5; Sun, 27 Aug 2023 09:29:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0200C433D9; Sun, 27 Aug 2023 09:29:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693128544; bh=3H/C787IUUTONRgCHUAFunTHHLv9u+5ZpTBnpCOyCHo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TYKmeQgbEOQh8IKiqgQjAimBbboRM9Qxfu+NAuYNdwv+ig/vI2jwQ5Zc0Hb91OAKm yYIL06xUZp92dTRw8WqVlc0uDele9Nxdxq4eUXjhA9gMvqF0CewLSdBBy+OoBhpX72 Vdx7evBjHKVyPXtoabWrPbq3rafGctKwQd+rFl/QuHJ+b4IRpVicq3PscxIRN4OL75 4e7bHWcf4QgEz8Zat1wSHU8Q9dSZewA0KaugWGNT+dPNM6m9+G1Gy0RehOHpMv1pPF q3DfKfEcXPQj+nc84IWeLO1SaIHLW84K2qW8wMshHBGgKiPJosBO4IRb4unenXUx+h XgaeZOYPQN0rQ== From: Jisheng Zhang To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime@vger.kernel.org, Coquelin@vger.kernel.org, Simon Horman Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, Krzysztof Kozlowski Subject: [PATCH net-next v2 1/3] dt-bindings: net: snps,dwmac: allow dwmac-3.70a to set pbl properties Date: Sun, 27 Aug 2023 17:17:08 +0800 Message-Id: <20230827091710.1483-2-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230827091710.1483-1-jszhang@kernel.org> References: <20230827091710.1483-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" snps dwmac 3.70a also supports setting pbl related properties, such as "snps,pbl", "snps,txpbl", "snps,rxpbl" and "snps,no-pbl-x8". Signed-off-by: Jisheng Zhang Reviewed-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/net/snps,dwmac.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Docume= ntation/devicetree/bindings/net/snps,dwmac.yaml index ddf9522a5dc2..b196c5de2061 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -586,6 +586,7 @@ allOf: - qcom,sa8775p-ethqos - qcom,sc8280xp-ethqos - snps,dwmac-3.50a + - snps,dwmac-3.70a - snps,dwmac-4.10a - snps,dwmac-4.20a - snps,dwmac-5.20 --=20 2.40.1 From nobody Thu Dec 18 06:14:13 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F019C83F15 for ; Sun, 27 Aug 2023 09:30:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230413AbjH0J3o (ORCPT ); Sun, 27 Aug 2023 05:29:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230108AbjH0J3M (ORCPT ); Sun, 27 Aug 2023 05:29:12 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AD95E1; Sun, 27 Aug 2023 02:29:10 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DB7A5615D3; Sun, 27 Aug 2023 09:29:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12D31C433C9; Sun, 27 Aug 2023 09:29:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693128549; bh=BDjKxssVciyafhRoklrknMsC7Bl61wHlzGID0mz0Kb0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sDRSB6BuXfTUhb8KjeEad6rpXSHysvgZzbylO+uHW5+1F151eLaNU7gTrEXO4a+jp mQHKUwcJ+rHjjjRgPHdj8ZiIA8/Dgy0cK5fSm28mjJD6DKDGbGEh3E2ZgXY3lDd5Q6 ox0HTLT3GS0EaCZkI6RotQuDixVL1Fea1/vC8/dSDlDDWdmgdsXOlTY6r4icWdZCwY c/vWZv2AkqiYeYPQXQmUJZbjYSIxjdDN+FpvMdCtD9CpOpUZkjjKG0arHtLOTgGwci ZKkfocC1yHZUgNLYBhddo4XEjHc1xcQu5VpxyX6DZpauLv8gy2cHX1+2aTCRw0Fpkq UocciAmUSvnNQ== From: Jisheng Zhang To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime@vger.kernel.org, Coquelin@vger.kernel.org, Simon Horman Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org Subject: [PATCH net-next v2 2/3] dt-bindings: net: add T-HEAD dwmac support Date: Sun, 27 Aug 2023 17:17:09 +0800 Message-Id: <20230827091710.1483-3-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230827091710.1483-1-jszhang@kernel.org> References: <20230827091710.1483-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add documentation to describe T-HEAD dwmac. Signed-off-by: Jisheng Zhang --- .../devicetree/bindings/net/snps,dwmac.yaml | 1 + .../devicetree/bindings/net/thead,dwmac.yaml | 77 +++++++++++++++++++ 2 files changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/thead,dwmac.yaml diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Docume= ntation/devicetree/bindings/net/snps,dwmac.yaml index b196c5de2061..73821f86a609 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -96,6 +96,7 @@ properties: - snps,dwxgmac - snps,dwxgmac-2.10 - starfive,jh7110-dwmac + - thead,th1520-dwmac =20 reg: minItems: 1 diff --git a/Documentation/devicetree/bindings/net/thead,dwmac.yaml b/Docum= entation/devicetree/bindings/net/thead,dwmac.yaml new file mode 100644 index 000000000000..bf8ec8ca2753 --- /dev/null +++ b/Documentation/devicetree/bindings/net/thead,dwmac.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/thead,dwmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: T-HEAD DWMAC Ethernet controller + +maintainers: + - Jisheng Zhang + +select: + properties: + compatible: + contains: + enum: + - thead,th1520-dwmac + required: + - compatible + +properties: + compatible: + items: + - enum: + - thead,th1520-dwmac + - const: snps,dwmac-3.70a + + reg: + maxItems: 1 + + thead,gmacapb: + $ref: /schemas/types.yaml#/definitions/phandle + description: + The phandle to the syscon node that control ethernet + interface and timing delay. + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - interrupt-names + - phy-mode + - thead,gmacapb + +allOf: + - $ref: snps,dwmac.yaml# + +unevaluatedProperties: false + +examples: + - | + gmac0: ethernet@e7070000 { + compatible =3D "thead,th1520-dwmac", "snps,dwmac-3.70a"; + reg =3D <0xe7070000 0x2000>; + clocks =3D <&clk 1>, <&clk 2>; + clock-names =3D "stmmaceth", "pclk"; + interrupts =3D <66>; + interrupt-names =3D "macirq"; + phy-mode =3D "rgmii-id"; + snps,fixed-burst; + snps,axi-config =3D <&stmmac_axi_setup>; + snps,pbl =3D <32>; + thead,gmacapb =3D <&gmacapb_syscon>; + phy-handle =3D <&phy0>; + + mdio { + #address-cells =3D <1>; + #size-cells =3D <0>; + compatible =3D "snps,dwmac-mdio"; + + phy0: ethernet-phy@0 { + reg =3D <0>; + }; + }; + }; --=20 2.40.1 From nobody Thu Dec 18 06:14:13 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FC7DC83F19 for ; Sun, 27 Aug 2023 09:30:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230481AbjH0J3q (ORCPT ); Sun, 27 Aug 2023 05:29:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230156AbjH0J3S (ORCPT ); Sun, 27 Aug 2023 05:29:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B142DE1; Sun, 27 Aug 2023 02:29:14 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 425CD62AE9; Sun, 27 Aug 2023 09:29:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9F6CC433CD; Sun, 27 Aug 2023 09:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693128553; bh=N0z/mAcH5A42iMJ93kXBC2uZ63EjyJPqNExfpzvdmW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SVeN30ygf3Xtuih17pubQ3tds5iE0xQnGX3NzyAMcuUxMFqyEkMtAFwrxbuqB5oe/ 292+6aDzcvpwouxfCXu/4Tdu+XUFJjrj1ACKA2IKfC/uzpwnHXnY4/v+gAvcb22csC bQEJdBzGU/OZEVOUlL41R9ri4y61uX4lA6n8jhQDb/5/Hlycc9Rcd9Ex+yGNYzY+d+ BicmoZqbuKYxWIm5mRf861O1CqHvrT8NbGS2/z6Zv7oDMI75z/U35RK3DSXCgxmZWX 6FBtPUufoQl80dAskvyUTwThmjfSCR6pjQURdW5aB1q3Cactk01vYc3CAmnO9xAaY+ T4UAWm9miQinw== From: Jisheng Zhang To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime@vger.kernel.org, Coquelin@vger.kernel.org, Simon Horman Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org Subject: [PATCH net-next v2 3/3] net: stmmac: add glue layer for T-HEAD TH1520 SoC Date: Sun, 27 Aug 2023 17:17:10 +0800 Message-Id: <20230827091710.1483-4-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230827091710.1483-1-jszhang@kernel.org> References: <20230827091710.1483-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add dwmac glue driver to support the dwmac on the T-HEAD TH1520 SoC. Signed-off-by: Jisheng Zhang --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../net/ethernet/stmicro/stmmac/dwmac-thead.c | 302 ++++++++++++++++++ 3 files changed, 314 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethe= rnet/stmicro/stmmac/Kconfig index 06c6871f8788..1bf71804c270 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -216,6 +216,17 @@ config DWMAC_SUN8I stmmac device driver. This driver is used for H3/A83T/A64 EMAC ethernet controller. =20 +config DWMAC_THEAD + tristate "T-HEAD dwmac support" + depends on OF && (ARCH_THEAD || COMPILE_TEST) + select MFD_SYSCON + help + Support for ethernet controllers on T-HEAD RISC-V SoCs + + This selects the T-HEAD platform specific glue layer support for + the stmmac device driver. This driver is used for T-HEAD TH1520 + ethernet controller. + config DWMAC_IMX8 tristate "NXP IMX8 DWMAC support" default ARCH_MXC diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/eth= ernet/stmicro/stmmac/Makefile index 5b57aee19267..d73171ed6ad7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_DWMAC_STI) +=3D dwmac-sti.o obj-$(CONFIG_DWMAC_STM32) +=3D dwmac-stm32.o obj-$(CONFIG_DWMAC_SUNXI) +=3D dwmac-sunxi.o obj-$(CONFIG_DWMAC_SUN8I) +=3D dwmac-sun8i.o +obj-$(CONFIG_DWMAC_THEAD) +=3D dwmac-thead.o obj-$(CONFIG_DWMAC_DWC_QOS_ETH) +=3D dwmac-dwc-qos-eth.o obj-$(CONFIG_DWMAC_INTEL_PLAT) +=3D dwmac-intel-plat.o obj-$(CONFIG_DWMAC_GENERIC) +=3D dwmac-generic.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c b/drivers/ne= t/ethernet/stmicro/stmmac/dwmac-thead.c new file mode 100644 index 000000000000..85135ef05906 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c @@ -0,0 +1,302 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * T-HEAD DWMAC platform driver + * + * Copyright (C) 2021 Alibaba Group Holding Limited. + * Copyright (C) 2023 Jisheng Zhang + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "stmmac_platform.h" + +#define GMAC_CLK_EN 0x00 +#define GMAC_TX_CLK_EN BIT(1) +#define GMAC_TX_CLK_N_EN BIT(2) +#define GMAC_TX_CLK_OUT_EN BIT(3) +#define GMAC_RX_CLK_EN BIT(4) +#define GMAC_RX_CLK_N_EN BIT(5) +#define GMAC_EPHY_REF_CLK_EN BIT(6) +#define GMAC_RXCLK_DELAY_CTRL 0x04 +#define GMAC_RXCLK_BYPASS BIT(15) +#define GMAC_RXCLK_INVERT BIT(14) +#define GMAC_RXCLK_DELAY_MASK GENMASK(4, 0) +#define GMAC_RXCLK_DELAY_VAL(x) FIELD_PREP(GMAC_RXCLK_DELAY_MASK, (x)) +#define GMAC_TXCLK_DELAY_CTRL 0x08 +#define GMAC_TXCLK_BYPASS BIT(15) +#define GMAC_TXCLK_INVERT BIT(14) +#define GMAC_TXCLK_DELAY_MASK GENMASK(4, 0) +#define GMAC_TXCLK_DELAY_VAL(x) FIELD_PREP(GMAC_RXCLK_DELAY_MASK, (x)) +#define GMAC_PLLCLK_DIV 0x0c +#define GMAC_PLLCLK_DIV_EN BIT(31) +#define GMAC_PLLCLK_DIV_MASK GENMASK(7, 0) +#define GMAC_PLLCLK_DIV_NUM(x) FIELD_PREP(GMAC_PLLCLK_DIV_MASK, (x)) +#define GMAC_GTXCLK_SEL 0x18 +#define GMAC_GTXCLK_SEL_PLL BIT(0) +#define GMAC_INTF_CTRL 0x1c +#define PHY_INTF_MASK BIT(0) +#define PHY_INTF_RGMII FIELD_PREP(PHY_INTF_MASK, 1) +#define PHY_INTF_MII_GMII FIELD_PREP(PHY_INTF_MASK, 0) +#define GMAC_TXCLK_OEN 0x20 +#define TXCLK_DIR_MASK BIT(0) +#define TXCLK_DIR_OUTPUT FIELD_PREP(TXCLK_DIR_MASK, 0) +#define TXCLK_DIR_INPUT FIELD_PREP(TXCLK_DIR_MASK, 1) + +#define GMAC_GMII_RGMII_RATE 125000000 +#define GMAC_MII_RATE 25000000 + +struct thead_dwmac { + struct plat_stmmacenet_data *plat; + struct regmap *apb_regmap; + struct device *dev; + u32 rx_delay; + u32 tx_delay; +}; + +static int thead_dwmac_set_phy_if(struct plat_stmmacenet_data *plat) +{ + struct thead_dwmac *dwmac =3D plat->bsp_priv; + u32 phyif; + + switch (plat->interface) { + case PHY_INTERFACE_MODE_MII: + phyif =3D PHY_INTF_MII_GMII; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + phyif =3D PHY_INTF_RGMII; + break; + default: + dev_err(dwmac->dev, "unsupported phy interface %d\n", + plat->interface); + return -EINVAL; + }; + + regmap_write(dwmac->apb_regmap, GMAC_INTF_CTRL, phyif); + + return 0; +} + +static int thead_dwmac_set_txclk_dir(struct plat_stmmacenet_data *plat) +{ + struct thead_dwmac *dwmac =3D plat->bsp_priv; + u32 txclk_dir; + + switch (plat->interface) { + case PHY_INTERFACE_MODE_MII: + txclk_dir =3D TXCLK_DIR_INPUT; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + txclk_dir =3D TXCLK_DIR_OUTPUT; + break; + default: + dev_err(dwmac->dev, "unsupported phy interface %d\n", + plat->interface); + return -EINVAL; + }; + + regmap_write(dwmac->apb_regmap, GMAC_TXCLK_OEN, txclk_dir); + + return 0; +} + +static void thead_dwmac_fix_speed(void *priv, unsigned int speed, unsigned= int mode) +{ + struct thead_dwmac *dwmac =3D priv; + struct plat_stmmacenet_data *plat =3D dwmac->plat; + unsigned long rate; + u32 div; + + switch (plat->interface) { + /* For MII, rxc/txc is provided by phy */ + case PHY_INTERFACE_MODE_MII: + return; + + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + rate =3D clk_get_rate(plat->stmmac_clk); + if (!rate || rate % GMAC_GMII_RGMII_RATE !=3D 0 || + rate % GMAC_MII_RATE !=3D 0) { + dev_err(dwmac->dev, "invalid gmac rate %ld\n", rate); + return; + } + + regmap_update_bits(dwmac->apb_regmap, GMAC_PLLCLK_DIV, GMAC_PLLCLK_DIV_E= N, 0); + + switch (speed) { + case SPEED_1000: + div =3D rate / GMAC_GMII_RGMII_RATE; + break; + case SPEED_100: + div =3D rate / GMAC_MII_RATE; + break; + case SPEED_10: + div =3D rate * 10 / GMAC_MII_RATE; + break; + default: + dev_err(dwmac->dev, "invalid speed %u\n", speed); + return; + } + regmap_update_bits(dwmac->apb_regmap, GMAC_PLLCLK_DIV, + GMAC_PLLCLK_DIV_MASK, GMAC_PLLCLK_DIV_NUM(div)); + + regmap_update_bits(dwmac->apb_regmap, GMAC_PLLCLK_DIV, + GMAC_PLLCLK_DIV_EN, GMAC_PLLCLK_DIV_EN); + break; + default: + dev_err(dwmac->dev, "unsupported phy interface %d\n", + plat->interface); + return; + } +} + +static int thead_dwmac_enable_clk(struct plat_stmmacenet_data *plat) +{ + struct thead_dwmac *dwmac =3D plat->bsp_priv; + u32 reg; + + switch (plat->interface) { + case PHY_INTERFACE_MODE_MII: + reg =3D GMAC_RX_CLK_EN | GMAC_TX_CLK_EN; + break; + + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + /* use pll */ + regmap_write(dwmac->apb_regmap, GMAC_GTXCLK_SEL, GMAC_GTXCLK_SEL_PLL); + + reg =3D GMAC_TX_CLK_EN | GMAC_TX_CLK_N_EN | GMAC_TX_CLK_OUT_EN | + GMAC_RX_CLK_EN | GMAC_RX_CLK_N_EN; + break; + + default: + dev_err(dwmac->dev, "unsupported phy interface %d\n", + plat->interface); + return -EINVAL; + } + + regmap_write(dwmac->apb_regmap, GMAC_CLK_EN, reg); + + return 0; +} + +static int thead_dwmac_init(struct platform_device *pdev, + struct plat_stmmacenet_data *plat) +{ + struct thead_dwmac *dwmac =3D plat->bsp_priv; + int ret; + + ret =3D thead_dwmac_set_phy_if(plat); + if (ret) + return ret; + + ret =3D thead_dwmac_set_txclk_dir(plat); + if (ret) + return ret; + + regmap_write(dwmac->apb_regmap, GMAC_RXCLK_DELAY_CTRL, + GMAC_RXCLK_DELAY_VAL(dwmac->rx_delay)); + regmap_write(dwmac->apb_regmap, GMAC_TXCLK_DELAY_CTRL, + GMAC_TXCLK_DELAY_VAL(dwmac->tx_delay)); + + thead_dwmac_fix_speed(dwmac, SPEED_1000, 0); + + return thead_dwmac_enable_clk(plat); +} + +static int thead_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat; + struct stmmac_resources stmmac_res; + struct thead_dwmac *dwmac; + struct device_node *np =3D pdev->dev.of_node; + u32 delay_ps; + int ret; + + ret =3D stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "failed to get resources\n"); + + plat =3D stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat)) + return dev_err_probe(&pdev->dev, PTR_ERR(plat), + "dt configuration failed\n"); + + dwmac =3D devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL); + if (!dwmac) { + ret =3D -ENOMEM; + goto err_remove_config_dt; + } + + if (!of_property_read_u32(np, "rx-internal-delay-ps", &delay_ps)) + dwmac->rx_delay =3D delay_ps; + if (!of_property_read_u32(np, "tx-internal-delay-ps", &delay_ps)) + dwmac->tx_delay =3D delay_ps; + + dwmac->apb_regmap =3D syscon_regmap_lookup_by_phandle(np, "thead,gmacapb"= ); + if (IS_ERR(dwmac->apb_regmap)) { + ret =3D dev_err_probe(&pdev->dev, PTR_ERR(dwmac->apb_regmap), + "Failed to get gmac apb syscon\n"); + goto err_remove_config_dt; + } + + dwmac->dev =3D &pdev->dev; + dwmac->plat =3D plat; + plat->bsp_priv =3D dwmac; + plat->fix_mac_speed =3D thead_dwmac_fix_speed; + + ret =3D thead_dwmac_init(pdev, plat); + if (ret) + goto err_remove_config_dt; + + ret =3D stmmac_dvr_probe(&pdev->dev, plat, &stmmac_res); + if (ret) + goto err_remove_config_dt; + + return 0; + +err_remove_config_dt: + stmmac_remove_config_dt(pdev, plat); + + return ret; +} + +static const struct of_device_id thead_dwmac_match[] =3D { + { .compatible =3D "thead,th1520-dwmac" }, + { } +}; +MODULE_DEVICE_TABLE(of, thead_dwmac_match); + +static struct platform_driver thead_dwmac_driver =3D { + .probe =3D thead_dwmac_probe, + .remove_new =3D stmmac_pltfr_remove, + .driver =3D { + .name =3D "thead-dwmac", + .pm =3D &stmmac_pltfr_pm_ops, + .of_match_table =3D thead_dwmac_match, + }, +}; +module_platform_driver(thead_dwmac_driver); + +MODULE_AUTHOR("T-HEAD"); +MODULE_AUTHOR("Jisheng Zhang "); +MODULE_DESCRIPTION("T-HEAD dwmac platform driver"); +MODULE_LICENSE("GPL"); --=20 2.40.1