From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v2 1/3] OMAP: ZOOM: Introducing 'board-zoom-flash.c' Date: Thu, 11 Feb 2010 12:47:03 -0800 Message-ID: <20100211204703.GI21755@atomide.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-02-ewr.mailhop.org ([204.13.248.72]:63081 "EHLO mho-02-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756853Ab0BKUq0 (ORCPT ); Thu, 11 Feb 2010 15:46:26 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Vimal Singh Cc: linux-omap@vger.kernel.org * Vimal Singh [100210 21:16]: > From: Vimal Singh > > This patch adds 'board-zoom-flash.c', which could be utilized > by boards similar to ZOOM2. (For ex: LDP, ZOOM2, ZOOM3). > > This does initialization for NAND device based on the 'cs' number > and partition information passed from board file (ex: board-zoom2.c). > > Signed-off-by: Vimal Singh > --- > arch/arm/mach-omap2/board-zoom-flash.c | 85 +++++++++++++++++++++++++ > arch/arm/mach-omap2/include/mach/board-zoom.h | 11 +++ > 2 files changed, 96 insertions(+), 0 deletions(-) > create mode 100644 arch/arm/mach-omap2/board-zoom-flash.c > > 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); The gpmc_baseaddr and gpmc_cs_baseaddr should no longer be needed with gpmc-nand.c, right? Tony > + 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); > -- > 1.6.3.3