Part Number: EVMK2H
hello
i'm new to 66AK series and about few days ago i start my work with evmk2hx board. in process of messing with evmk2hx i start to create another partition on NAND flash so we code put our custom dsp code on it and in later step load it on 66x cores of TCI6636K2h. (we have done this on our custom board of 6678, in which we boot other cores same way, but in 6678 we wrote our IBL ourselves so we had full control over it.)
here in evmk2hx we are bound to use u-boot, but we can't even create another partition on NAND, actually we stuck in first step. here is what i have done till now.
1. i download and install ti-processor-sdk-linux-k2hk-evm-05.00.00.15-Linux-x86-Install.bin on ubuntu 14.04 LTS 64 bit
2. i changed "&aemif" part of "keystone-k2hk-evm.dts" file in folder "<install_dir>/board-support/u-boot-2018.01+gitAUTOINC+131dc82830-g131dc82830/arch/arm/dts/ " as below: (green part = changed part)
&aemif {
cs0 {
#address-cells = <2>;
#size-cells = <1>;
clock-ranges;
ranges;
ti,cs-chipselect = <0>;
/* all timings in nanoseconds */
ti,cs-min-turnaround-ns = <12>;
ti,cs-read-hold-ns = <6>;
ti,cs-read-strobe-ns = <23>;
ti,cs-read-setup-ns = <9>;
ti,cs-write-hold-ns = <8>;
ti,cs-write-strobe-ns = <23>;
ti,cs-write-setup-ns = <8>;
nand@0,0 {
compatible = "ti,keystone-nand","ti,davinci-nand";
#address-cells = <1>;
#size-cells = <1>;
reg = <0 0 0x4000000
1 0 0x0000100>;
ti,davinci-chipselect = <0>;
ti,davinci-mask-ale = <0x2000>;
ti,davinci-mask-cle = <0x4000>;
ti,davinci-mask-chipsel = <0>;
nand-ecc-mode = "hw";
ti,davinci-ecc-bits = <4>;
nand-on-flash-bbt;
partition@0 {
label = "u-boot";
reg = <0x0 0x100000>;
read-only;
};
partition@100000 {
label = "params";
reg = <0x100000 0x80000>;
read-only;
};
partition@180000 {
label = "dspcode";
reg = <0x180000 0x200000>;
read-only;
};
partition@380000 {
label = "ubifs";
reg = <0x380000 0x1fc80000>;
};
};
};
};
3. i moved to folder "<install_dir>/board-support/u-boot-2018.01+gitAUTOINC+131dc82830-g131dc82830" and add value "<install_dir>//linux-devkit/sysroots/x86_64-arago-linux/usr/bin" to PATH variable (according to this)
4. i run below command (according to this)
make CROSS_COMPILE=arm-linux-gnueabihf- O=custom_2kh k2hk_evm_defconfig
make CROSS_COMPILE=arm-linux-gnueabihf- O=custom_2kh
5. a folder with name of "custom_2kh" generate inside of folder "<install_dir>/board-support/u-boot-2018.01+gitAUTOINC+131dc82830-g131dc82830" which have a "u-boot.bin" in it.
6. next i configured evmk2hx for "ARM no boot" and used CCS 6.0 and connected to arm_0 of TCI6636k2h
7. then i load custom generated u-boot.bin file in previous step on address 0xC000000 and changed PC to 0xC000000 and press run button to start execution of custom u-boot.bin
8. in serial screen i halt autoload and enter u-boot command-line and enter command "mtdparts"
what i expected was to see 4 partitions containing {"bootloader","params","dspcode","ubifs"} but i see 3 DEFAULT partitions ({"bootloader","params","ubifs"}). simply "dspcode" is not there.
am i done something wrong? or changing that dts file was not supposed to result in my desired changes to begin with?
is there any clean way to change nand partition in U-boot?
and also is it possible for that change to affect linux too?
thanks in advance
