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 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EFCEBC4167B for ; Tue, 20 Dec 2022 10:23:51 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id E30DD853C5; Tue, 20 Dec 2022 11:23:00 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="uTalfMVS"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id F187785403; Tue, 20 Dec 2022 11:22:34 +0100 (CET) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id B48BC85338 for ; Tue, 20 Dec 2022 11:22:28 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=rogerq@kernel.org Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7297B61306; Tue, 20 Dec 2022 10:22:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48058C433F1; Tue, 20 Dec 2022 10:22:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671531746; bh=utKHinWKDElBjhDjH/lickSwSS8kJkd0AFEKjbjqqD0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uTalfMVS5TLc7RF18nuhZ94kJLmLIoRCY+KAYVXlqtbJQRiDJisjTC0gnwug6VoJn 8Ov4kzZDUdEXJoK1gZWaGvzE1B5fXtlmsJHEeDBH1uQ70MalMCUrnzPZpz0aXLkFsR hi17Di6FEmlJ9EE8JorABzhnWX+Asft/fhW30UoIkWpjotLdpt5VR3c3gxhy8/rE9H 4ANfEAFi9CA3JLCcr7KWaHF4AhEQXkwRpypBONsc6ZlfMDfrk40j/1fAFt/UEmTvfw vFO0LNSxGfpWntzlFT7IBe2OcLc4PTn7L/JE+wTEqwUWq1H9Sw9tA2XVbZriTcpHo6 Qo0Sl2aEb9Grg== From: Roger Quadros To: dario.binacchi@amarulasolutions.com, michael@amarulasolutions.com, m.niestroj@grinn-global.com Cc: trini@konsulko.com, u-boot@lists.denx.de, Roger Quadros Subject: [u-boot][PATCH v2 8/8] mtd: rawnand: omap_elm: u-boot driver model support Date: Tue, 20 Dec 2022 12:22:03 +0200 Message-Id: <20221220102203.52398-9-rogerq@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221220102203.52398-1-rogerq@kernel.org> References: <20221220102203.52398-1-rogerq@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean Support u-boot driver model. We still retain support legacy way of doing things if ELM_BASE is defined in We could completely get rid of that if all platforms defining ELM_BASE get rid of that definition and enable CONFIG_SYS_NAND_SELF_INIT and are verified to work. Signed-off-by: Roger Quadros --- drivers/mtd/nand/raw/omap_elm.c | 35 ++++++++++++++++++- .../mtd => drivers/mtd/nand/raw}/omap_elm.h | 6 ++++ drivers/mtd/nand/raw/omap_gpmc.c | 12 ++++++- 3 files changed, 51 insertions(+), 2 deletions(-) rename {include/linux/mtd => drivers/mtd/nand/raw}/omap_elm.h (97%) diff --git a/drivers/mtd/nand/raw/omap_elm.c b/drivers/mtd/nand/raw/omap_elm.c index 35c6dd1f1bc..e528a5348d5 100644 --- a/drivers/mtd/nand/raw/omap_elm.c +++ b/drivers/mtd/nand/raw/omap_elm.c @@ -15,9 +15,14 @@ #include #include #include -#include #include +#include +#include +#include + +#include "omap_elm.h" + #define DRIVER_NAME "omap-elm" #define ELM_DEFAULT_POLY (0) @@ -180,6 +185,7 @@ void elm_reset(void) ; } +#ifdef ELM_BASE /** * elm_init - Initialize ELM module * @@ -191,3 +197,30 @@ void elm_init(void) elm_cfg = (struct elm *)ELM_BASE; elm_reset(); } +#endif + +static int elm_probe(struct udevice *dev) +{ +#ifndef ELM_BASE + struct resource res; + + dev_read_resource(dev, 0, &res); + elm_cfg = devm_ioremap(dev, res.start, resource_size(&res)); + elm_reset(); +#endif + + return 0; +} + +static const struct udevice_id elm_ids[] = { + { .compatible = "ti,am3352-elm" }, + { .compatible = "ti,am64-elm" }, + { } +}; + +U_BOOT_DRIVER(gpmc_elm) = { + .name = DRIVER_NAME, + .id = UCLASS_MTD, + .of_match = elm_ids, + .probe = elm_probe, +}; diff --git a/include/linux/mtd/omap_elm.h b/drivers/mtd/nand/raw/omap_elm.h similarity index 97% rename from include/linux/mtd/omap_elm.h rename to drivers/mtd/nand/raw/omap_elm.h index f3db00d55de..a7f7bacb154 100644 --- a/include/linux/mtd/omap_elm.h +++ b/drivers/mtd/nand/raw/omap_elm.h @@ -74,6 +74,12 @@ int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count, u32 *error_locations); int elm_config(enum bch_level level); void elm_reset(void); +#ifdef ELM_BASE void elm_init(void); +#else +static inline void elm_init(void) +{ +} +#endif #endif /* __ASSEMBLY__ */ #endif /* __ASM_ARCH_ELM_H */ diff --git a/drivers/mtd/nand/raw/omap_gpmc.c b/drivers/mtd/nand/raw/omap_gpmc.c index ed6cdf93ad0..9692b78da3c 100644 --- a/drivers/mtd/nand/raw/omap_gpmc.c +++ b/drivers/mtd/nand/raw/omap_gpmc.c @@ -20,7 +20,8 @@ #include #include #include -#include + +#include "omap_elm.h" #ifndef GPMC_MAX_CS #define GPMC_MAX_CS 4 @@ -1249,6 +1250,15 @@ void board_nand_init(void) struct udevice *dev; int ret; +#ifdef CONFIG_NAND_OMAP_ELM + ret = uclass_get_device_by_driver(UCLASS_MTD, + DM_DRIVER_GET(gpmc_elm), &dev); + if (ret && ret != -ENODEV) { + pr_err("%s: Failed to get ELM device: %d\n", __func__, ret); + return; + } +#endif + ret = uclass_get_device_by_driver(UCLASS_MTD, DM_DRIVER_GET(gpmc_nand), &dev); if (ret && ret != -ENODEV) -- 2.34.1