From patchwork Tue Apr 19 13:36:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12818491 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 65A1AC433F5 for ; Tue, 19 Apr 2022 13:47:32 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E084519E7; Tue, 19 Apr 2022 15:46:39 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E084519E7 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1650376050; bh=4iDu1ZR93Hpdk0ePDMtItzf+hxINHA/lI2UqgUNvzAk=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=dzvDruzOckhjcpQMRYr9awn5iWrsTpYJBPIvzxgGq+DQzvaOYt0O5vL75cq28RjyM 90p5/k4Tks63nh55W+44srqC9yEsT7zujq2v2fYKFf8leBC/T/5ch7cBil7MtEQfxj TXWHyrvuUBRll+BHKoQZH5DRGgXM7xr/YbpC1qKo= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 172C9F80552; Tue, 19 Apr 2022 15:43:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4F356F8025D; Tue, 19 Apr 2022 15:39:32 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 10857F80121 for ; Tue, 19 Apr 2022 15:39:26 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 10857F80121 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iYu4XDHn" 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 EABA5616A3; Tue, 19 Apr 2022 13:38:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F1F3C385B0; Tue, 19 Apr 2022 13:38:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650375534; bh=4iDu1ZR93Hpdk0ePDMtItzf+hxINHA/lI2UqgUNvzAk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iYu4XDHn5LNc7q3bp0MnU+38E/Ct276pZyBclM70B5U7U15YheXM7tnLSDrpUiUFQ LOdrjAjpzyttsvLOqFC2b7tDcSoaZFMybnxyY5aUJrfJtURup3vbi2iY75ltYnDLuS R0BLoJT+6r95ZIXxT2lNCWCFV7jGVZ7Sde1XjlYMf9LdvnqvV4unQN9PnYwj+Xjx8X 7eBiNtO4k2iiNvODCKeMIIYXlu+l9Iz92DSuTWievPEejspI9ZHnElvJr2WOS2dbqw lFRLt6aXKxLOfia2VmyXNyqNDgSTrk89Sgbp424LQiBRKM9tKYyKriV+ZzqFh6k3u5 x1pStxY//K6Sg== From: Arnd Bergmann To: linux-omap@vger.kernel.org, tony@atomide.com, aaro.koskinen@iki.fi, jmkrzyszt@gmail.com Subject: [PATCH 10/41] ARM: omap1: move CF chipselect setup to board file Date: Tue, 19 Apr 2022 15:36:52 +0200 Message-Id: <20220419133723.1394715-11-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220419133723.1394715-1-arnd@kernel.org> References: <20220419133723.1394715-1-arnd@kernel.org> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 19 Apr 2022 15:43:16 +0200 Cc: Ulf Hansson , Dmitry Torokhov , Linus Walleij , linux-fbdev@vger.kernel.org, Dominik Brodowski , Lee Jones , Daniel Thompson , Kevin Hilman , Peter Ujfalusi , Helge Deller , Russell King , Krzysztof Kozlowski , Alan Stern , linux-serial@vger.kernel.org, linux-input@vger.kernel.org, Arnd Bergmann , Mark Brown , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Felipe Balbi , Paul Walmsley , Jingoo Han , linux-usb@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Vinod Koul , dmaengine@vger.kernel.org, alsa-devel@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Arnd Bergmann There is only one board that uses the omap_cf driver, so moving the chipselect configuration there does not lead to code duplication but avoids the use of mach/tc.h in drivers. Signed-off-by: Arnd Bergmann --- arch/arm/mach-omap1/board-osk.c | 38 ++++++++++++++++++++++++++++----- drivers/pcmcia/Kconfig | 3 ++- drivers/pcmcia/omap_cf.c | 38 ++++++--------------------------- 3 files changed, 42 insertions(+), 37 deletions(-) diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index b627a4351cf0..5dbc8f109aa7 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -153,14 +153,14 @@ static struct resource osk5912_cf_resources[] = { [0] = { .flags = IORESOURCE_IRQ, }, + [1] = { + .flags = IORESOURCE_MEM, + }, }; static struct platform_device osk5912_cf_device = { .name = "omap_cf", .id = -1, - .dev = { - .platform_data = (void *) 2 /* CS2 */, - }, .num_resources = ARRAY_SIZE(osk5912_cf_resources), .resource = osk5912_cf_resources, }; @@ -275,13 +275,41 @@ static void __init osk_init_smc91x(void) omap_writel(l, EMIFS_CCS(1)); } -static void __init osk_init_cf(void) +static void __init osk_init_cf(int seg) { + struct resource *res = &osk5912_cf_resources[1]; + omap_cfg_reg(M7_1610_GPIO62); if ((gpio_request(62, "cf_irq")) < 0) { printk("Error requesting gpio 62 for CF irq\n"); return; } + + switch (seg) { + /* NOTE: CS0 could be configured too ... */ + case 1: + res->start = OMAP_CS1_PHYS; + break; + case 2: + res->start = OMAP_CS2_PHYS; + break; + case 3: + res->start = omap_cs3_phys(); + break; + } + + res->end = res->start + SZ_8K - 1; + osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg; + + /* NOTE: better EMIFS setup might support more cards; but the + * TRM only shows how to affect regular flash signals, not their + * CF/PCMCIA variants... + */ + pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__, + seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); + omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ + omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ + /* the CF I/O IRQ is really active-low */ irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } @@ -580,7 +608,7 @@ static void __init osk_init(void) u32 l; osk_init_smc91x(); - osk_init_cf(); + osk_init_cf(2); /* CS2 */ /* Workaround for wrong CS3 (NOR flash) timing * There are some U-Boot versions out there which configure diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index 2ce261cfff8e..ec977f031bc2 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -246,7 +246,8 @@ config PCMCIA_VRC4171 config OMAP_CF tristate "OMAP CompactFlash Controller" - depends on PCMCIA && ARCH_OMAP16XX + depends on PCMCIA + depends on ARCH_OMAP16XX || (ARM && COMPILE_TEST) help Say Y here to support the CompactFlash controller on OMAP. Note that this doesn't support "True IDE" mode. diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index f0b2c2d03469..093022ce7d91 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -16,13 +16,12 @@ #include -#include #include #include -#include -#include - +#include +#include +#include /* NOTE: don't expect this to support many I/O cards. The 16xx chips have * hard-wired timings to support Compact Flash memory cards; they won't work @@ -205,6 +204,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) struct omap_cf_socket *cf; int irq; int status; + struct resource *res; seg = (int) pdev->dev.platform_data; if (seg == 0 || seg > 3) @@ -215,6 +215,8 @@ static int __init omap_cf_probe(struct platform_device *pdev) if (irq < 0) return -EINVAL; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + cf = kzalloc(sizeof *cf, GFP_KERNEL); if (!cf) return -ENOMEM; @@ -230,24 +232,7 @@ static int __init omap_cf_probe(struct platform_device *pdev) goto fail0; cf->irq = irq; cf->socket.pci_irq = irq; - - switch (seg) { - /* NOTE: CS0 could be configured too ... */ - case 1: - cf->phys_cf = OMAP_CS1_PHYS; - break; - case 2: - cf->phys_cf = OMAP_CS2_PHYS; - break; - case 3: - cf->phys_cf = omap_cs3_phys(); - break; - default: - goto fail1; - } - cf->iomem.start = cf->phys_cf; - cf->iomem.end = cf->iomem.end + SZ_8K - 1; - cf->iomem.flags = IORESOURCE_MEM; + cf->phys_cf = res->start; /* pcmcia layer only remaps "real" memory */ cf->socket.io_offset = (unsigned long) @@ -273,15 +258,6 @@ static int __init omap_cf_probe(struct platform_device *pdev) pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq); - /* NOTE: better EMIFS setup might support more cards; but the - * TRM only shows how to affect regular flash signals, not their - * CF/PCMCIA variants... - */ - pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", driver_name, - seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); - omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ - omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ - /* CF uses armxor_ck, which is "always" available */ pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,