From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from imap.sh.mvista.com (unknown [63.81.120.155]) by ozlabs.org (Postfix) with ESMTP id 66BF4DDE3B for ; Wed, 20 Dec 2006 08:20:58 +1100 (EST) Message-ID: <458857AF.6000406@ru.mvista.com> Date: Wed, 20 Dec 2006 00:20:47 +0300 From: Sergei Shtylyov MIME-Version: 1.0 To: Vitaly Wool Subject: Re: [PATCH][trivial][respin] update MTD OF documentation References: <20061219184425.d924c4c2.vitalywool@gmail.com> In-Reply-To: <20061219184425.d924c4c2.vitalywool@gmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Cc: linuxppc-dev@ozlabs.org, dwmw2@redhat.com, Paul Mackerras List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello. Vitaly Wool wrote: > the patch below updates the Documentation/powerpc part of the MTD OF implementation with the new field probe-type. Its support has already been implemented in MTD part (drivers/mtd/maps/physmap_of.c). > Documentation/powerpc/booting-without-of.txt | 19 +++++++++++-------- > 1 files changed, 11 insertions(+), 8 deletions(-) > > Signed-off-by: Vitaly Wool Signed-off-by: Sergei Shtylyov > diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt > index b3bd366..3399427 100644 > --- a/Documentation/powerpc/booting-without-of.txt > +++ b/Documentation/powerpc/booting-without-of.txt > @@ -1703,29 +1703,32 @@ platforms are moved over to use the flat > Required properties: > > - device_type : has to be "rom" > - - compatible : Should specify what this ROM device is compatible with > - (i.e. "onenand"). Currently, this is most likely to be "direct-mapped" > - (which corresponds to the MTD physmap mapping driver). > - - regs : Offset and length of the register set (or memory mapping) for > + - compatible : Should specify what this flash device is compatible with. > + Currently, this is most likely to be "direct-mapped" (which > + corresponds to the MTD physmap mapping driver). > + - reg : Offset and length of the register set (or memory mapping) for > the device. > + - bank-width : Width of the flash data bus in bytes. Required > + for the NOR flashes (compatible == "direct-mapped" and others) ONLY. > > Recommended properties : > > - - bank-width : Width of the flash data bus in bytes. Required > - for the NOR flashes (compatible == "direct-mapped" and others) ONLY. > - partitions : Several pairs of 32-bit values where the first value is > partition's offset from the start of the device and the second one is > partition size in bytes with LSB used to signify a read only > - partititon (so, the parition size should always be an even number). > + partition (so, the parition size should always be an even number). > - partition-names : The list of concatenated zero terminated strings > representing the partition names. > + - probe-type : The type of probe which should be done for the chip > + (JEDEC vs CFI actually). Valid ONLY for NOR flashes. > > Example: > > flash@ff000000 { > device_type = "rom"; > compatible = "direct-mapped"; > - regs = ; > + probe-type = "CFI"; > + reg = ; > bank-width = <4>; > partitions = <00000000 00f80000 > 00f80000 00080001>; WBR, Sergei