From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris BREZILLON Subject: [PATCH v3 1/9] mtd: nand: define struct nand_timings Date: Wed, 12 Mar 2014 19:07:36 +0100 Message-ID: <1394647664-8258-2-git-send-email-b.brezillon.dev@gmail.com> References: <1394647664-8258-1-git-send-email-b.brezillon.dev@gmail.com> Reply-To: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1394647664-8258-1-git-send-email-b.brezillon.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-Subscribe: , List-Unsubscribe: , To: Maxime Ripard , Rob Herring , David Woodhouse , Grant Likely , Brian Norris , Jason Gunthorpe , Arnd Bergmann Cc: Boris BREZILLON , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, dev-3kdeTeqwOZ9EV1b7eY7vFQ@public.gmane.org List-Id: devicetree@vger.kernel.org Define a struct containing the standard NAND timings as described in NAND datasheets. Signed-off-by: Boris BREZILLON --- include/linux/mtd/nand.h | 49 ++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 49 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 389b3c5..f3ff3a3 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -846,4 +846,53 @@ static inline bool nand_is_slc(struct nand_chip *chip) { return chip->bits_per_cell =3D=3D 1; } + +/** + * struct nand_sdr_timings - SDR NAND chip timings + * + * This struct defines the timing requirements of a SDR NAND chip. + * These informations can be found in every NAND datasheets and the timing= s + * meaning are described in the ONFI specifications: + * www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf=E2=80=8E (chapter 4.1= 5 Timing + * Parameters) + * + */ + +struct nand_sdr_timings { + u32 tALH_min; + u32 tADL_min; + u32 tALS_min; + u32 tAR_min; + u32 tCEA_max; + u32 tCEH_min; + u32 tCH_min; + u32 tCHZ_max; + u32 tCLH_min; + u32 tCLR_min; + u32 tCLS_min; + u32 tCOH_min; + u32 tCS_min; + u32 tDH_min; + u32 tDS_min; + u32 tFEAT_max; + u32 tIR_min; + u32 tITC_max; + u32 tRC_min; + u32 tREA_max; + u32 tREH_min; + u32 tRHOH_min; + u32 tRHW_min; + u32 tRHZ_max; + u32 tRLOH_min; + u32 tRP_min; + u32 tRR_min; + u64 tRST_max; + u32 tWB_max; + u32 tWC_min; + u32 tWH_min; + u32 tWHR_min; + u32 tWP_min; + u32 tWW_min; +}; + #endif /* __LINUX_MTD_NAND_H */ --=20 1.7.9.5 --=20 You received this message because you are subscribed to the Google Groups "= linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout.