* Using 1GB Nand with AM335x
@ 2015-09-02 3:42 Ankur Tyagi
2015-09-03 16:24 ` Denys Dmytriyenko
0 siblings, 1 reply; 3+ messages in thread
From: Ankur Tyagi @ 2015-09-02 3:42 UTC (permalink / raw)
To: meta-ti
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Hi,
I have following queries regarding usage of 1GB Nand (MT29F8G16ABACAWP)
with AM335x
- what is the meaning of cells in "reg" property of gpmc nand child node ?
Information here is not clear
http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/mtd/gpmc-nand.txt?v=3.14
- what should be the value of property "gpmc,device-width" if
"nand-bus-width= <16>" ? I think it should be "2"
Please confirm whether below is correct for 1GB 16-bit bus-width nand
&gpmc {
status = "okay";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&nandflash_pins_default>;
pinctrl-1 = <&nandflash_pins_sleep>;
ranges = <0 0 0x08000000 0x40000000>; /* CS0: NAND */
nand@0,0 {
reg = <0 0 0>; /* CS0, offset 0 */
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <16>;
gpmc,device-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "NAND.SPL";
reg = <0x00000000 0x000040000>;
};
partition@1 {
label = "NAND.SPL.backup1";
reg = <0x00040000 0x00040000>;
};
partition@2 {
label = "NAND.SPL.backup2";
reg = <0x00080000 0x00040000>;
};
partition@3 {
label = "NAND.SPL.backup3";
reg = <0x000c0000 0x00040000>;
};
partition@4 {
label = "NAND.u-boot-spl-os";
reg = <0x00100000 0x00080000>;
};
partition@5 {
label = "NAND.u-boot";
reg = <0x00180000 0x00200000>;
};
partition@6 {
label = "NAND.u-boot-env";
reg = <0x00380000 0x00040000>;
};
partition@7 {
label = "NAND.u-boot-env.backup1";
reg = <0x003c0000 0x00040000>;
};
partition@8 {
label = "NAND.kernel";
reg = <0x00400000 0x00600000>;
};
partition@9 {
label = "NAND.file-system";
reg = <0x00A00000 0x1F600000>;
};
}
}
Please also confirm the following arguments for UBIFS :
mkfs.ubifs -r </path/rootfs> -o </path/rootfs.ubifs> -F –m 4096 –e
253952 –c 1918
ubinize -o </path/rootfs.ubi> -m 4096 -p 256KiB -s 1024 -O 4096 ubinize.cfg
ubiformat /dev/mtd9 -f rootfs.ubi -s 1024 -O 4096
Thanks
Ankur
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Using 1GB Nand with AM335x
2015-09-02 3:42 Using 1GB Nand with AM335x Ankur Tyagi
@ 2015-09-03 16:24 ` Denys Dmytriyenko
0 siblings, 0 replies; 3+ messages in thread
From: Denys Dmytriyenko @ 2015-09-03 16:24 UTC (permalink / raw)
To: Ankur Tyagi; +Cc: meta-ti
No reason to send this to multiple lists, as neither of them is the correct
list for these types of questions.
Please use http://e2e.ti.com forums instead. Thanks.
--
Denys
On Wed, Sep 02, 2015 at 03:42:42PM +1200, Ankur Tyagi wrote:
> Hi,
>
> I have following queries regarding usage of 1GB Nand (MT29F8G16ABACAWP)
> with AM335x
>
> - what is the meaning of cells in "reg" property of gpmc nand child node ?
> Information here is not clear
> http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/mtd/gpmc-nand.txt?v=3.14
>
> - what should be the value of property "gpmc,device-width" if
> "nand-bus-width= <16>" ? I think it should be "2"
>
>
> Please confirm whether below is correct for 1GB 16-bit bus-width nand
>
> &gpmc {
> status = "okay";
> pinctrl-names = "default", "sleep";
> pinctrl-0 = <&nandflash_pins_default>;
> pinctrl-1 = <&nandflash_pins_sleep>;
> ranges = <0 0 0x08000000 0x40000000>; /* CS0: NAND */
> nand@0,0 {
> reg = <0 0 0>; /* CS0, offset 0 */
> ti,nand-ecc-opt = "bch16";
> ti,elm-id = <&elm>;
> nand-bus-width = <16>;
> gpmc,device-width = <2>;
> #address-cells = <1>;
> #size-cells = <1>;
> partition@0 {
> label = "NAND.SPL";
> reg = <0x00000000 0x000040000>;
> };
> partition@1 {
> label = "NAND.SPL.backup1";
> reg = <0x00040000 0x00040000>;
> };
> partition@2 {
> label = "NAND.SPL.backup2";
> reg = <0x00080000 0x00040000>;
> };
> partition@3 {
> label = "NAND.SPL.backup3";
> reg = <0x000c0000 0x00040000>;
> };
> partition@4 {
> label = "NAND.u-boot-spl-os";
> reg = <0x00100000 0x00080000>;
> };
> partition@5 {
> label = "NAND.u-boot";
> reg = <0x00180000 0x00200000>;
> };
> partition@6 {
> label = "NAND.u-boot-env";
> reg = <0x00380000 0x00040000>;
> };
> partition@7 {
> label = "NAND.u-boot-env.backup1";
> reg = <0x003c0000 0x00040000>;
> };
> partition@8 {
> label = "NAND.kernel";
> reg = <0x00400000 0x00600000>;
> };
> partition@9 {
> label = "NAND.file-system";
> reg = <0x00A00000 0x1F600000>;
> };
> }
> }
>
>
> Please also confirm the following arguments for UBIFS :
>
> mkfs.ubifs -r </path/rootfs> -o </path/rootfs.ubifs> -F –m 4096 –e
> 253952 –c 1918
> ubinize -o </path/rootfs.ubi> -m 4096 -p 256KiB -s 1024 -O 4096 ubinize.cfg
> ubiformat /dev/mtd9 -f rootfs.ubi -s 1024 -O 4096
>
>
> Thanks
>
> Ankur
> --
> _______________________________________________
> meta-ti mailing list
> meta-ti@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-ti
^ permalink raw reply [flat|nested] 3+ messages in thread
* Using 1GB Nand with AM335x
@ 2015-09-02 3:59 Ankur Tyagi
0 siblings, 0 replies; 3+ messages in thread
From: Ankur Tyagi @ 2015-09-02 3:59 UTC (permalink / raw)
To: meta-arago
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Hi,
I have following queries regarding usage of 1GB Nand (MT29F8G16ABACAWP)
with AM335x
- what is the meaning of cells in "reg" property of gpmc nand child node ?
Information here is not clear
http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/mtd/gpmc-nand.txt?v=3.14
- what should be the value of property "gpmc,device-width" if
"nand-bus-width= <16>" ? I think it should be "2"
Please confirm whether below is correct for 1GB 16-bit bus-width nand
&gpmc {
status = "okay";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&nandflash_pins_default>;
pinctrl-1 = <&nandflash_pins_sleep>;
ranges = <0 0 0x08000000 0x40000000>; /* CS0: NAND */
nand@0,0 {
reg = <0 0 0>; /* CS0, offset 0 */
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <16>;
gpmc,device-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "NAND.SPL";
reg = <0x00000000 0x000040000>;
};
partition@1 {
label = "NAND.SPL.backup1";
reg = <0x00040000 0x00040000>;
};
partition@2 {
label = "NAND.SPL.backup2";
reg = <0x00080000 0x00040000>;
};
partition@3 {
label = "NAND.SPL.backup3";
reg = <0x000c0000 0x00040000>;
};
partition@4 {
label = "NAND.u-boot-spl-os";
reg = <0x00100000 0x00080000>;
};
partition@5 {
label = "NAND.u-boot";
reg = <0x00180000 0x00200000>;
};
partition@6 {
label = "NAND.u-boot-env";
reg = <0x00380000 0x00040000>;
};
partition@7 {
label = "NAND.u-boot-env.backup1";
reg = <0x003c0000 0x00040000>;
};
partition@8 {
label = "NAND.kernel";
reg = <0x00400000 0x00600000>;
};
partition@9 {
label = "NAND.file-system";
reg = <0x00A00000 0x1F600000>;
};
}
}
Please also confirm the following arguments for UBIFS :
mkfs.ubifs -r </path/rootfs> -o </path/rootfs.ubifs> -F –m 4096 –e
253952 –c 1918
ubinize -o </path/rootfs.ubi> -m 4096 -p 256KiB -s 1024 -O 4096 ubinize.cfg
ubiformat /dev/mtd9 -f rootfs.ubi -s 1024 -O 4096
Thanks
Ankur
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