From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBD89C11F6D for ; Wed, 30 Jun 2021 23:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBDC561451 for ; Wed, 30 Jun 2021 23:01:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232066AbhF3XEJ (ORCPT ); Wed, 30 Jun 2021 19:04:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55684 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232394AbhF3XEH (ORCPT ); Wed, 30 Jun 2021 19:04:07 -0400 Received: from mail.kernel-space.org (unknown [IPv6:2a01:4f8:c2c:5a84::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE375C0617A8; Wed, 30 Jun 2021 16:01:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-space.org; s=20190913; t=1625094094; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=14Wgc+1KxTV88uKWJHLyo9Xt2hwrOgyJSMNVqAm8vi0=; b=RIuuwMWuLlofLEz1Lmvpb/0U8Jtulh7GA/kdyXw3T//iaO0b+b83F8xdwBvIMg329Kd3iI CfXFL+Jz3RUTY1dcgDmLflhs+L6Dbf01oaJaK1aPujYbQ0DudEecs147jDLXQEJjjnOZQ6 Lxnjb6lJ/H11ePfrOGjPo0dN1n6TYdM= Received: from dfj.bfc.timesys.com (host-87-4-238-130.retail.telecomitalia.it [87.4.238.130]) by ziongate (OpenSMTPD) with ESMTPSA id eb960879 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Wed, 30 Jun 2021 23:01:34 +0000 (UTC) From: Angelo Dureghello To: gerg@linux-m68k.org, wg@grandegger.com, mkl@pengutronix.de Cc: geert@linux-m68k.org, linux-m68k@vger.kernel.org, linux-can@vger.kernel.org, qiangqing.zhang@nxp.com, Angelo Dureghello Subject: [PATCH v4 3/5] m68k: m5441x: add flexcan support Date: Thu, 1 Jul 2021 01:00:14 +0200 Message-Id: <20210630230016.4099050-3-angelo@kernel-space.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210630230016.4099050-1-angelo@kernel-space.org> References: <20210630230016.4099050-1-angelo@kernel-space.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org Add flexcan support. Signed-off-by: Angelo Dureghello --- Changes for v2: - add irq resources for ERR and BOFF interrutps Changes for v3: - differentiate device name, for future variants addition Changes for v4: - change platform data structure name to flexcan_platform_data --- arch/m68k/coldfire/device.c | 42 +++++++++++++++++++++++++++++++ arch/m68k/coldfire/m5441x.c | 8 +++--- arch/m68k/include/asm/m5441xsim.h | 19 ++++++++++++++ 3 files changed, 65 insertions(+), 4 deletions(-) diff --git a/arch/m68k/coldfire/device.c b/arch/m68k/coldfire/device.c index 59f7dfe50a4d..5f7effbf7c60 100644 --- a/arch/m68k/coldfire/device.c +++ b/arch/m68k/coldfire/device.c @@ -23,6 +23,7 @@ #include #include #include +#include /* * All current ColdFire parts contain from 2, 3, 4 or 10 UARTS. @@ -581,6 +582,44 @@ static struct platform_device mcf_esdhc = { }; #endif /* MCFSDHC_BASE */ +#if IS_ENABLED(CONFIG_CAN) +static struct flexcan_platform_data mcf5441x_flexcan_info = { + .clk_src = 1, + .clock_frequency = 120000000, +}; + +static struct resource mcf5441x_flexcan0_resource[] = { + { + .start = MCFFLEXCAN_BASE0, + .end = MCFFLEXCAN_BASE0 + MCFFLEXCAN_SIZE, + .flags = IORESOURCE_MEM, + }, + { + .start = MCF_IRQ_IFL0, + .end = MCF_IRQ_IFL0, + .flags = IORESOURCE_IRQ, + }, + { + .start = MCF_IRQ_BOFF0, + .end = MCF_IRQ_BOFF0, + .flags = IORESOURCE_IRQ, + }, + { + .start = MCF_IRQ_ERR0, + .end = MCF_IRQ_ERR0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mcf_flexcan0 = { + .name = "flexcan-mcf5441x", + .id = 0, + .num_resources = ARRAY_SIZE(mcf5441x_flexcan0_resource), + .resource = mcf5441x_flexcan0_resource, + .dev.platform_data = &mcf5441x_flexcan_info, +}; +#endif /* IS_ENABLED(CONFIG_CAN) */ + static struct platform_device *mcf_devices[] __initdata = { &mcf_uart, #if IS_ENABLED(CONFIG_FEC) @@ -616,6 +655,9 @@ static struct platform_device *mcf_devices[] __initdata = { #ifdef MCFSDHC_BASE &mcf_esdhc, #endif +#if IS_ENABLED(CONFIG_CAN) + &mcf_flexcan0, +#endif }; /* diff --git a/arch/m68k/coldfire/m5441x.c b/arch/m68k/coldfire/m5441x.c index 1e5259a652d1..18b152edb69c 100644 --- a/arch/m68k/coldfire/m5441x.c +++ b/arch/m68k/coldfire/m5441x.c @@ -18,8 +18,8 @@ #include DEFINE_CLK(0, "flexbus", 2, MCF_CLK); -DEFINE_CLK(0, "mcfcan.0", 8, MCF_CLK); -DEFINE_CLK(0, "mcfcan.1", 9, MCF_CLK); +DEFINE_CLK(0, "flexcan.0", 8, MCF_CLK); +DEFINE_CLK(0, "flexcan.1", 9, MCF_CLK); DEFINE_CLK(0, "imx1-i2c.1", 14, MCF_CLK); DEFINE_CLK(0, "mcfdspi.1", 15, MCF_CLK); DEFINE_CLK(0, "edma", 17, MCF_CLK); @@ -146,6 +146,8 @@ struct clk *mcf_clks[] = { static struct clk * const enable_clks[] __initconst = { /* make sure these clocks are enabled */ + &__clk_0_8, /* flexcan.0 */ + &__clk_0_9, /* flexcan.1 */ &__clk_0_15, /* dspi.1 */ &__clk_0_17, /* eDMA */ &__clk_0_18, /* intc0 */ @@ -166,8 +168,6 @@ static struct clk * const enable_clks[] __initconst = { &__clk_1_37, /* gpio */ }; static struct clk * const disable_clks[] __initconst = { - &__clk_0_8, /* can.0 */ - &__clk_0_9, /* can.1 */ &__clk_0_14, /* i2c.1 */ &__clk_0_22, /* i2c.0 */ &__clk_0_23, /* dspi.0 */ diff --git a/arch/m68k/include/asm/m5441xsim.h b/arch/m68k/include/asm/m5441xsim.h index e091e36d3464..f48cf63bd782 100644 --- a/arch/m68k/include/asm/m5441xsim.h +++ b/arch/m68k/include/asm/m5441xsim.h @@ -73,6 +73,12 @@ #define MCFINT0_FECENTC1 55 /* on interrupt controller 1 */ +#define MCFINT1_FLEXCAN0_IFL 0 +#define MCFINT1_FLEXCAN0_BOFF 1 +#define MCFINT1_FLEXCAN0_ERR 3 +#define MCFINT1_FLEXCAN1_IFL 4 +#define MCFINT1_FLEXCAN1_BOFF 5 +#define MCFINT1_FLEXCAN1_ERR 7 #define MCFINT1_UART4 48 #define MCFINT1_UART5 49 #define MCFINT1_UART6 50 @@ -314,4 +320,17 @@ #define MCF_IRQ_SDHC (MCFINT2_VECBASE + MCFINT2_SDHC) #define MCFSDHC_CLK (MCFSDHC_BASE + 0x2c) +/* + * Flexcan module + */ +#define MCFFLEXCAN_BASE0 0xfc020000 +#define MCFFLEXCAN_BASE1 0xfc024000 +#define MCFFLEXCAN_SIZE 0x4000 +#define MCF_IRQ_IFL0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_IFL) +#define MCF_IRQ_BOFF0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_BOFF) +#define MCF_IRQ_ERR0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_ERR) +#define MCF_IRQ_IFL1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_IFL) +#define MCF_IRQ_BOFF1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_BOFF) +#define MCF_IRQ_ERR1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_ERR) + #endif /* m5441xsim_h */ -- 2.31.1