Thanks
Jerry Huang
> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Thursday, March 15, 2012 2:50 AM
> To: Huang Changming-R66093
> Cc: linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH 4/4] powerpc/85xx: add the P1020UTM-PC DTS support
>
> On 03/14/2012 04:08 AM, chang-ming.hu...@freescale.com wrote:
> > +&lbc {
> > + nor@0,0 {
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + compatible = "cfi-flash";
> > + reg = <0x0 0x0 0x2000000>;
> > + bank-width = <2>;
> > + device-width = <1>;
> > +
> > + partition@0 {
> > + /* 256KB for DTB Image */
> > + reg = <0x0 0x00040000>;
> > + label = "NOR (RO) DTB Image";
> > + read-only;
> > + };
> > +
> > + partition@40000 {
> > + /* 3.75 MB for Linux Kernel Image */
> > + reg = <0x00040000 0x003c0000>;
> > + label = "NOR (RO) Linux Kernel Image";
> > + read-only;
> > + };
> > +
> > + partition@400000 {
> > + /* 27MB for Root file System */
> > + reg = <0x00400000 0x01b00000>;
> > + label = "NOR (RW) Root File System";
> > + };
> > +
> > + partition@1f00000 {
> > + /* This location must not be altered */
> > + /* 512KB for u-boot Bootloader Image */
> > + /* 512KB for u-boot Environment Variables */
> > + reg = <0x01f00000 0x00100000>;
> > + label = "NOR (RO) U-Boot Image";
> > + read-only;
> > + };
>
> Don't put (RW) or (RO) in the label; that information is already there in
> the read-only property.
But for the user, after booting the kernel, he don't know these partition are
read-only or can be wrote.
If add (RW) or (RO), user can know which partition can be wrote or can't
directly.
> The DTB and kernel image should not be read-only.
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