From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH 0/4] m25p80 Quad/Dual updates Date: Tue, 21 Jan 2014 13:59:15 +0100 Message-ID: <1390309159-19643-1-git-send-email-geert@linux-m68k.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Marek Vasut , Sourav Poddar , linux-mtd@lists.infradead.org, linux-spi@vger.kernel.org To: David Woodhouse , Brian Norris Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org Hi, This patch series allows to really use Quad and Dual SPI Read Tranfers with the m25p80 driver: [1/4] mtd: m25p80: Enable Quad SPI read transfers for s25fl512s [2/4] mtd: m25p80: Set rx_nbits for Quad SPI transfers [3/4] mtd: m25p80: Add dual read support [4/4] mtd: m25p80: Enable Dual SPI read transfers for s25fl256s1 and s25fl512s Patch [2/4] is a bug fix. Patches [3/4] and [4/4] may be considered of limited use (why use Dual transfers if you have Quad transfers?), but 1. not all Quad-capable devices may be connected using 6 wires, 2. it allows to test Dual SPI transfers in SPI master drivers. This was tested with a preliminary version of the Renesas QSPI driver and a Spansion s25fl512s SPI FLASH. Thanks for your comments! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/