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Mon, 4 Nov 2024 10:00:58 +0000 Received: from DU0PR04MB9251.eurprd04.prod.outlook.com ([fe80::708f:69ee:15df:6ebd]) by DU0PR04MB9251.eurprd04.prod.outlook.com ([fe80::708f:69ee:15df:6ebd%6]) with mapi id 15.20.8114.028; Mon, 4 Nov 2024 10:00:54 +0000 From: Ciprian Costea To: Oleksij Rempel , Pengutronix Kernel Team , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Fabio Estevam Cc: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Christophe Lizzi , Alberto Ruiz , Enric Balletbo , Ciprian Marian Costea , Ionut Vicovan Subject: [PATCH 2/2] i2c: imx: add support for S32G2/S32G3 SoCs Date: Mon, 4 Nov 2024 12:00:44 +0200 Message-ID: <20241104100044.3634076-3-ciprianmarian.costea@oss.nxp.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241104100044.3634076-1-ciprianmarian.costea@oss.nxp.com> References: <20241104100044.3634076-1-ciprianmarian.costea@oss.nxp.com> X-ClientProxiedBy: AM8P189CA0028.EURP189.PROD.OUTLOOK.COM (2603:10a6:20b:218::33) To DU0PR04MB9251.eurprd04.prod.outlook.com (2603:10a6:10:352::15) Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9251:EE_|DB8PR04MB6825:EE_ X-MS-Office365-Filtering-Correlation-Id: 0e143f73-9541-434c-6ccf-08dcfcb791f8 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|376014|1800799024; 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Those are addressed by adding specific S32G2 and S32G3 compatible strings. Co-developed-by: Ionut Vicovan Signed-off-by: Ionut Vicovan Signed-off-by: Ciprian Marian Costea --- drivers/i2c/busses/Kconfig | 7 ++++--- drivers/i2c/busses/i2c-imx.c | 37 +++++++++++++++++++++++++++++++++++- 2 files changed, 40 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 6b3ba7e5723a..45ea214e4b0e 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -741,13 +741,14 @@ config I2C_IMG config I2C_IMX tristate "IMX I2C interface" - depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE || COMPILE_TEST + depends on ARCH_MXC || ARCH_LAYERSCAPE || ARCH_S32 || COLDFIRE \ + || COMPILE_TEST select I2C_SLAVE help Say Y here if you want to use the IIC bus controller on - the Freescale i.MX/MXC, Layerscape or ColdFire processors. + the Freescale i.MX/MXC/S32G, Layerscape or ColdFire processors. - This driver can also be built as a module. If so, the module + This driver can also be built as a module. If so, the module will be called i2c-imx. config I2C_IMX_LPI2C diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 98539313cbc9..3509c37c89ab 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -17,7 +17,7 @@ * Copyright (C) 2008 Darius Augulis * * Copyright 2013 Freescale Semiconductor, Inc. - * Copyright 2020 NXP + * Copyright 2020, 2024 NXP * */ @@ -84,6 +84,7 @@ #define IMX_I2C_REGSHIFT 2 #define VF610_I2C_REGSHIFT 0 +#define S32G_I2C_REGSHIFT 0 /* Bits of IMX I2C registers */ #define I2SR_RXAK 0x01 @@ -165,10 +166,35 @@ static struct imx_i2c_clk_pair vf610_i2c_clk_div[] = { { 3840, 0x3F }, { 4096, 0x7B }, { 5120, 0x7D }, { 6144, 0x7E }, }; +/* S32G2/S32G3 clock divider, register value pairs */ +static struct imx_i2c_clk_pair s32g2_i2c_clk_div[] = { + { 34, 0x00 }, { 36, 0x01 }, { 38, 0x02 }, { 40, 0x03 }, + { 42, 0x04 }, { 44, 0x05 }, { 46, 0x06 }, { 48, 0x09 }, + { 52, 0x0A }, { 54, 0x07 }, { 56, 0x0B }, { 60, 0x0C }, + { 64, 0x0D }, { 68, 0x40 }, { 72, 0x0E }, { 76, 0x42 }, + { 80, 0x12 }, { 84, 0x0F }, { 88, 0x13 }, { 96, 0x14 }, + { 104, 0x15 }, { 108, 0x47 }, { 112, 0x19 }, { 120, 0x16 }, + { 128, 0x1A }, { 136, 0x80 }, { 144, 0x17 }, { 152, 0x82 }, + { 160, 0x1C }, { 168, 0x84 }, { 176, 0x1D }, { 192, 0x21 }, + { 208, 0x1E }, { 216, 0x87 }, { 224, 0x22 }, { 240, 0x56 }, + { 256, 0x1F }, { 288, 0x24 }, { 320, 0x25 }, { 336, 0x8F }, + { 352, 0x93 }, { 356, 0x5D }, { 358, 0x98 }, { 384, 0x26 }, + { 416, 0x56 }, { 448, 0x2A }, { 480, 0x27 }, { 512, 0x2B }, + { 576, 0x2C }, { 640, 0x2D }, { 704, 0x9D }, { 768, 0x2E }, + { 832, 0x9D }, { 896, 0x32 }, { 960, 0x2F }, { 1024, 0x33 }, + { 1152, 0x34 }, { 1280, 0x35 }, { 1536, 0x36 }, { 1792, 0x3A }, + { 1920, 0x37 }, { 2048, 0x3B }, { 2304, 0x74 }, { 2560, 0x3D }, + { 3072, 0x3E }, { 3584, 0x7A }, { 3840, 0x3F }, { 4096, 0x7B }, + { 4608, 0x7C }, { 5120, 0x7D }, { 6144, 0x7E }, { 7168, 0xBA }, + { 7680, 0x7F }, { 8192, 0xBB }, { 9216, 0xBC }, { 10240, 0xBD }, + { 12288, 0xBE }, { 15360, 0xBF }, +}; + enum imx_i2c_type { IMX1_I2C, IMX21_I2C, VF610_I2C, + S32G_I2C, }; struct imx_i2c_hwdata { @@ -258,7 +284,15 @@ static struct imx_i2c_hwdata vf610_i2c_hwdata = { .ndivs = ARRAY_SIZE(vf610_i2c_clk_div), .i2sr_clr_opcode = I2SR_CLR_OPCODE_W1C, .i2cr_ien_opcode = I2CR_IEN_OPCODE_0, +}; +static const struct imx_i2c_hwdata s32g2_i2c_hwdata = { + .devtype = S32G_I2C, + .regshift = S32G_I2C_REGSHIFT, + .clk_div = s32g2_i2c_clk_div, + .ndivs = ARRAY_SIZE(s32g2_i2c_clk_div), + .i2sr_clr_opcode = I2SR_CLR_OPCODE_W1C, + .i2cr_ien_opcode = I2CR_IEN_OPCODE_0, }; static const struct platform_device_id imx_i2c_devtype[] = { @@ -288,6 +322,7 @@ static const struct of_device_id i2c_imx_dt_ids[] = { { .compatible = "fsl,imx8mp-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx8mq-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,vf610-i2c", .data = &vf610_i2c_hwdata, }, + { .compatible = "nxp,s32g2-i2c", .data = &s32g2_i2c_hwdata, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);