Hi,
Custom board has a 8-bit NAND Flash and I'd like to use this NAND flash to boot.
I refer to the DRA7xx EVM because AM5718 SDK doesn't support NAND.
There are many NAND partition information of DRA7xx EVM in below.
1. dra7xx_evm_defconfig files shows below NAND partition.
CONFIG_MTDPARTS_DEFAULT="mtdparts=nand.0:256k(NAND.SPL),256k(NAND.SPL.backup1),256k(NAND.SPL.backup2),256k(NAND.SPL.backup3),256k(NAND.u-boot-spl-os),2m(NAND.u-boot),128k(NAND.u-boot-env),128k(NAND.u-boot-env.backup1),8m(NAND.kernel),-(NAND.file-system)"
2. dra7-evm.dts defines nand as below.
partition@0 {
label = "NAND.SPL";
reg = <0x00000000 0x000020000>;
};
partition@1 {
label = "NAND.SPL.backup1";
reg = <0x00020000 0x00020000>;
};
partition@2 {
label = "NAND.SPL.backup2";
reg = <0x00040000 0x00020000>;
};
partition@3 {
label = "NAND.SPL.backup3";
reg = <0x00060000 0x00020000>;
};
partition@4 {
label = "NAND.u-boot-spl-os";
reg = <0x00080000 0x00040000>;
};
partition@5 {
label = "NAND.u-boot";
reg = <0x000c0000 0x00100000>;
};
partition@6 {
label = "NAND.u-boot-env";
reg = <0x001c0000 0x00020000>;
};
partition@7 {
label = "NAND.u-boot-env.backup1";
reg = <0x001e0000 0x00020000>;
};
partition@8 {
label = "NAND.kernel";
reg = <0x00200000 0x00800000>;
};
partition@9 {
label = "NAND.file-system";
reg = <0x00a00000 0x0f600000>;
};
3. dra7xx_evm.h defines below
#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x00140000
4. Processor SDK Linux Guide
device nand0 <nand.0>, # parts = 10
#: name size offset mask_flags
0: NAND.SPL 0x00020000 0x00000000 0
1: NAND.SPL.backup1 0x00020000 0x00020000 0
2: NAND.SPL.backup2 0x00020000 0x00040000 0
3: NAND.SPL.backup3 0x00020000 0x00060000 0
4: NAND.u-boot-spl-os 0x00040000 0x00080000 0
5: NAND.u-boot 0x00100000 0x000c0000 0
6: NAND.u-boot-env 0x00020000 0x001c0000 0
7: NAND.u-boot-env.backup10x00020000 0x001e0000 0
8: NAND.kernel 0x00800000 0x00200000 0
9: NAND.file-system 0x0f600000 0x00a00000 0
Is CONFIG_SYS_NAND_U_BOOT_OFFS start address of u-boot?
How can I define the CONFIG_SYS_NAND_U_BOOT_OFFS?
