From patchwork Wed Jan 13 07:02:03 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: vimal singh X-Patchwork-Id: 72516 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0D72Qn1006563 for ; Wed, 13 Jan 2010 07:02:26 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754912Ab0AMHCZ (ORCPT ); Wed, 13 Jan 2010 02:02:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753606Ab0AMHCZ (ORCPT ); Wed, 13 Jan 2010 02:02:25 -0500 Received: from mail-bw0-f227.google.com ([209.85.218.227]:49803 "EHLO mail-bw0-f227.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932070Ab0AMHCY (ORCPT ); Wed, 13 Jan 2010 02:02:24 -0500 Received: by bwz27 with SMTP id 27so1718594bwz.21 for ; Tue, 12 Jan 2010 23:02:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:from:date:message-id :subject:to:cc:content-type; bh=Kwh1EYCpPygIloZ7oUo1uNFS4GbPZp9tTl5Yn3aHwK0=; b=cHAT+xBEvpfTGeQPmQmCq1NMz/NqPkB/OfqM/fLQhRORNnxbZSNK7TRiKggytPJBdY C+fQzuaIbqmg3EJMQ+aVDiFK97ZjhwhZ3Eldz1JojgAfSs6WopT6B1dF7iWpCOvpD+NS h+flgYXAHxrCulkko0+lkWTbv5ihj3g3MnngY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:cc:content-type; b=o/D2vUT1yAhPJbucgIsA8L9G7BiX3QcvLfVQL5zZQFCeBMXtaSvOfCKmuUiS0juaOv l9Xg6NWprSEJCXky9EIi7dqxGv+jUpaLMN1W1Kqm37DUFHwMM7zi0iEYl7K6OtRhn7ra EtupgrkbFgqhHTaiOUUtr+JrL6JEszvSeGs3Y= MIME-Version: 1.0 Received: by 10.204.137.215 with SMTP id x23mr3734898bkt.151.1263366143101; Tue, 12 Jan 2010 23:02:23 -0800 (PST) From: Vimal Singh Date: Wed, 13 Jan 2010 12:32:03 +0530 Message-ID: Subject: [PATCH 1/3] OMAP: ZOOM: Introducing 'board-zoom-flash.c' To: linux-omap@vger.kernel.org Cc: Tony Lindgren Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org diff --git a/arch/arm/mach-omap2/board-zoom-flash.c b/arch/arm/mach-omap2/board-zoom-flash.c new file mode 100644 index 0000000..f2328a4 --- /dev/null +++ b/arch/arm/mach-omap2/board-zoom-flash.c @@ -0,0 +1,85 @@ +/* + * board-zoom-flash.c + * + * Copyright (C) 2009 Texas Instruments Inc. + * Vimal Singh + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#if defined(CONFIG_MTD_NAND_OMAP2) || \ + defined(CONFIG_MTD_NAND_OMAP2_MODULE) + +/* Note that all values in this struct are in nanoseconds */ +static struct gpmc_timings nand_timings = { + + .sync_clk = 0, + + .cs_on = 0, + .cs_rd_off = 36, + .cs_wr_off = 36, + + .adv_on = 6, + .adv_rd_off = 24, + .adv_wr_off = 36, + + .we_off = 30, + .oe_off = 48, + + .access = 54, + .rd_cycle = 72, + .wr_cycle = 72, + + .wr_access = 30, + .wr_data_mux_bus = 0, +}; + +/* NAND chip access: 16 bit */ +static struct omap_nand_platform_data zoom_nand_data = { + .nand_setup = NULL, + .gpmc_t = &nand_timings, + .dma_channel = -1, /* disable DMA in OMAP NAND driver */ + .dev_ready = NULL, + .devsize = 1, /* '0' for 8-bit, '1' for 16-bit device */ +}; + +/** + * zoom_flash_init - Identify devices connected to GPMC and register. + * + * @return - void. + */ +void __init zoom_flash_init(struct flash_partitions zoom_nand_parts[], int cs) +{ + u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; + + zoom_nand_data.cs = cs; + zoom_nand_data.parts = zoom_nand_parts[0].parts; + zoom_nand_data.nr_parts = zoom_nand_parts[0].nr_parts; + zoom_nand_data.gpmc_baseaddr = (void *)(gpmc_base_add); + zoom_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add + + GPMC_CS0_BASE + + cs * GPMC_CS_SIZE); + gpmc_nand_init(&zoom_nand_data); +} +#else +void __init zoom_flash_init(struct flash_partitions zoom_nand_parts[], int cs) +{ +} +#endif /* CONFIG_MTD_NAND_OMAP2 || CONFIG_MTD_NAND_OMAP2_MODULE */ + diff --git a/arch/arm/mach-omap2/include/mach/board-zoom.h b/arch/arm/mach-omap2/include/mach/board-zoom.h index c93b29e..f4469d3 100644 --- a/arch/arm/mach-omap2/include/mach/board-zoom.h +++ b/arch/arm/mach-omap2/include/mach/board-zoom.h @@ -1,5 +1,16 @@ /* * Defines for zoom boards */ +#include +#include + +struct flash_partitions { + struct mtd_partition *parts; + int nr_parts; +}; + +#define ZOOM_NAND_CS 0 + +extern void __init zoom_flash_init(struct flash_partitions [], int); extern int __init zoom_debugboard_init(void); extern void __init zoom_peripherals_init(void);