From patchwork Thu Sep 28 12:24:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Roullier X-Patchwork-Id: 13402884 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A18B38BD1; Thu, 28 Sep 2023 12:25:18 +0000 (UTC) Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76B66199; Thu, 28 Sep 2023 05:25:16 -0700 (PDT) Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id 38S8aKu8015718; Thu, 28 Sep 2023 14:24:51 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= selector1; bh=P3XV1IaVNFLkdLdID+Fpncm54gnI4v+2MxfVHgWirNY=; b=ds yFU5ucpU9qQOFXAKtNf5y1tAUA04tfABDduSO1v/ZvguNCct772K6HjQCR9f10BF LOvNFaAItwYn6DyaTjtcz3aAgehKlDyhEV2qSq58QM8IWE1la2f+5IXwZneTOMoI KJIjifJlgWLc2EhBxP2rsznxY3n8+MPEq14GDxGStiQ2CWvX9nua9JiVSxviTEY+ 9oEFL9mVFuXUk1TluMy82uXwwCUtRnYi2+RgnaH9Bep1VwCipv/wfFiBNl6hnsiI LABQtBgBr8Mxp4+Z60J2MsdKLxLpw085CTF4MecOeODIKYMSm1tNGRLsYx9jDUEC vJog6wWrfeiKAJSe6bHA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3t9qbx6c14-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Sep 2023 14:24:51 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id BBA12100068; Thu, 28 Sep 2023 14:24:35 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node2.st.com [10.75.129.70]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id B17722309DD; Thu, 28 Sep 2023 14:24:35 +0200 (CEST) Received: from localhost (10.201.21.249) by SHFDAG1NODE2.st.com (10.75.129.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Thu, 28 Sep 2023 14:24:35 +0200 From: Christophe Roullier To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Richard Cochran , Jose Abreu , Liam Girdwood , Mark Brown , Christophe Roullier CC: , , , , Subject: [PATCH v2 04/12] net: ethernet: stmmac: rework glue to simplify management for next stm32 Date: Thu, 28 Sep 2023 14:24:19 +0200 Message-ID: <20230928122427.313271-5-christophe.roullier@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230928122427.313271-1-christophe.roullier@foss.st.com> References: <20230928122427.313271-1-christophe.roullier@foss.st.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [10.201.21.249] X-ClientProxiedBy: SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE2.st.com (10.75.129.70) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-09-28_11,2023-09-28_01,2023-05-22_02 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org Change glue to be more generic and manage easily next stm32 products. The goal of this commit is to have one stm32mp1_set_mode function which can manage different STM32 SOC. SOC can have different SYSCFG register bitfields. so in pmcsetr we defined the bitfields corresponding to the SOC. Signed-off-by: Christophe Roullier --- .../net/ethernet/stmicro/stmmac/dwmac-stm32.c | 70 +++++++++++++------ 1 file changed, 48 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c index ab4324ed46dac..52106e0d7359f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c @@ -23,10 +23,6 @@ #define SYSCFG_MCU_ETH_MASK BIT(23) #define SYSCFG_MP1_ETH_MASK GENMASK(23, 16) -#define SYSCFG_PMCCLRR_OFFSET 0x40 - -#define SYSCFG_PMCR_ETH_CLK_SEL BIT(16) -#define SYSCFG_PMCR_ETH_REF_CLK_SEL BIT(17) /* CLOCK feed to PHY*/ #define ETH_CK_F_25M 25000000 @@ -46,9 +42,6 @@ * RMII | 1 | 0 | 0 | n/a | *------------------------------------------ */ -#define SYSCFG_PMCR_ETH_SEL_MII BIT(20) -#define SYSCFG_PMCR_ETH_SEL_RGMII BIT(21) -#define SYSCFG_PMCR_ETH_SEL_RMII BIT(23) #define SYSCFG_PMCR_ETH_SEL_GMII 0 #define SYSCFG_MCU_ETH_SEL_MII 0 #define SYSCFG_MCU_ETH_SEL_RMII 1 @@ -90,12 +83,25 @@ struct stm32_dwmac { int eth_ref_clk_sel_reg; int irq_pwr_wakeup; u32 mode_reg; /* MAC glue-logic mode register */ + u32 mode_mask; struct regmap *regmap; u32 speed; const struct stm32_ops *ops; struct device *dev; }; +struct stm32_syscfg_pmcsetr { + u32 eth1_clk_sel; + u32 eth1_ref_clk_sel; + u32 eth1_selmii; + u32 eth1_sel_rgmii; + u32 eth1_sel_rmii; + u32 eth2_clk_sel; + u32 eth2_ref_clk_sel; + u32 eth2_sel_rgmii; + u32 eth2_sel_rmii; +}; + struct stm32_ops { int (*set_mode)(struct plat_stmmacenet_data *plat_dat); int (*clk_prepare)(struct stm32_dwmac *dwmac, bool prepare); @@ -103,7 +109,8 @@ struct stm32_ops { void (*resume)(struct stm32_dwmac *dwmac); int (*parse_data)(struct stm32_dwmac *dwmac, struct device *dev); - u32 syscfg_eth_mask; + u32 syscfg_clr_off; + struct stm32_syscfg_pmcsetr pmcsetr; }; static int stm32_dwmac_init(struct plat_stmmacenet_data *plat_dat) @@ -175,7 +182,7 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) case PHY_INTERFACE_MODE_MII: if (clk_rate == ETH_CK_F_25M && dwmac->ext_phyclk) dwmac->enable_eth_ck = true; - val = SYSCFG_PMCR_ETH_SEL_MII; + val = dwmac->ops->pmcsetr.eth1_selmii; pr_debug("SYSCFG init : PHY_INTERFACE_MODE_MII\n"); break; case PHY_INTERFACE_MODE_GMII: @@ -183,16 +190,17 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) if (clk_rate == ETH_CK_F_25M && (dwmac->eth_clk_sel_reg || dwmac->ext_phyclk)) { dwmac->enable_eth_ck = true; - val |= SYSCFG_PMCR_ETH_CLK_SEL; + val |= dwmac->ops->pmcsetr.eth1_clk_sel; } pr_debug("SYSCFG init : PHY_INTERFACE_MODE_GMII\n"); break; case PHY_INTERFACE_MODE_RMII: - val = SYSCFG_PMCR_ETH_SEL_RMII; + val = dwmac->ops->pmcsetr.eth1_sel_rmii | dwmac->ops->pmcsetr.eth2_sel_rmii; if ((clk_rate == ETH_CK_F_25M || clk_rate == ETH_CK_F_50M) && (dwmac->eth_ref_clk_sel_reg || dwmac->ext_phyclk)) { dwmac->enable_eth_ck = true; - val |= SYSCFG_PMCR_ETH_REF_CLK_SEL; + val |= dwmac->ops->pmcsetr.eth1_ref_clk_sel; + val |= dwmac->ops->pmcsetr.eth2_ref_clk_sel; } pr_debug("SYSCFG init : PHY_INTERFACE_MODE_RMII\n"); break; @@ -200,11 +208,12 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) case PHY_INTERFACE_MODE_RGMII_ID: case PHY_INTERFACE_MODE_RGMII_RXID: case PHY_INTERFACE_MODE_RGMII_TXID: - val = SYSCFG_PMCR_ETH_SEL_RGMII; + val = dwmac->ops->pmcsetr.eth1_sel_rgmii | dwmac->ops->pmcsetr.eth2_sel_rgmii; if ((clk_rate == ETH_CK_F_25M || clk_rate == ETH_CK_F_125M) && (dwmac->eth_clk_sel_reg || dwmac->ext_phyclk)) { dwmac->enable_eth_ck = true; - val |= SYSCFG_PMCR_ETH_CLK_SEL; + val |= dwmac->ops->pmcsetr.eth1_clk_sel; + val |= dwmac->ops->pmcsetr.eth2_clk_sel; } pr_debug("SYSCFG init : PHY_INTERFACE_MODE_RGMII\n"); break; @@ -216,12 +225,12 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) } /* Need to update PMCCLRR (clear register) */ - regmap_write(dwmac->regmap, reg + SYSCFG_PMCCLRR_OFFSET, - dwmac->ops->syscfg_eth_mask); + regmap_write(dwmac->regmap, reg + dwmac->ops->syscfg_clr_off, + dwmac->mode_mask); /* Update PMCSETR (set register) */ return regmap_update_bits(dwmac->regmap, reg, - dwmac->ops->syscfg_eth_mask, val); + dwmac->mode_mask, val); } static int stm32mcu_set_mode(struct plat_stmmacenet_data *plat_dat) @@ -247,7 +256,7 @@ static int stm32mcu_set_mode(struct plat_stmmacenet_data *plat_dat) } return regmap_update_bits(dwmac->regmap, reg, - dwmac->ops->syscfg_eth_mask, val << 23); + SYSCFG_MCU_ETH_MASK, val << 23); } static void stm32_dwmac_clk_disable(struct stm32_dwmac *dwmac) @@ -290,10 +299,17 @@ static int stm32_dwmac_parse_data(struct stm32_dwmac *dwmac, return PTR_ERR(dwmac->regmap); err = of_property_read_u32_index(np, "st,syscon", 1, &dwmac->mode_reg); + if (err) { + dev_err(dev, "Can't get sysconfig register offset (%d)\n", err); + return err; + } + + dwmac->mode_mask = SYSCFG_MP1_ETH_MASK; + err = of_property_read_u32_index(np, "st,syscon", 2, &dwmac->mode_mask); if (err) - dev_err(dev, "Can't get sysconfig mode offset (%d)\n", err); + pr_debug("Warning sysconfig register mask not set\n"); - return err; + return 0; } static int stm32mp1_parse_data(struct stm32_dwmac *dwmac, @@ -499,7 +515,6 @@ static SIMPLE_DEV_PM_OPS(stm32_dwmac_pm_ops, static struct stm32_ops stm32mcu_dwmac_data = { .set_mode = stm32mcu_set_mode, .suspend = stm32mcu_suspend, - .syscfg_eth_mask = SYSCFG_MCU_ETH_MASK }; static struct stm32_ops stm32mp1_dwmac_data = { @@ -508,7 +523,18 @@ static struct stm32_ops stm32mp1_dwmac_data = { .suspend = stm32mp1_suspend, .resume = stm32mp1_resume, .parse_data = stm32mp1_parse_data, - .syscfg_eth_mask = SYSCFG_MP1_ETH_MASK + .syscfg_clr_off = 0x44, + .pmcsetr = { + .eth1_clk_sel = BIT(16), + .eth1_ref_clk_sel = BIT(17), + .eth1_selmii = BIT(20), + .eth1_sel_rgmii = BIT(21), + .eth1_sel_rmii = BIT(23), + .eth2_clk_sel = 0, + .eth2_ref_clk_sel = 0, + .eth2_sel_rgmii = 0, + .eth2_sel_rmii = 0 + } }; static const struct of_device_id stm32_dwmac_match[] = {