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1 The spl command is used to export a boot parameter image to RAM. Later
2 it may implement more functions connected to the SPL.
3
4 SUBCOMMAND EXPORT
5 To execute the command everything has to be in place as if bootm should be
6 used. (kernel image, initrd-image, fdt-image etc.)
7
8 export has two subcommands:
9 atags: exports the ATAGS
10 fdt: exports the FDT
11
12 Call is:
13 spl export <ftd|atags> [kernel_addr] [initrd_addr] [fdt_addr if fdt]
14
15
16 TYPICAL CALL
17
18 on OMAP3:
19 nandecc hw
20 nand read 0x82000000 0x280000 0x400000 /* Read kernel image from NAND*/
21 spl export atags /* export ATAGS */
22 nand erase 0x680000 0x20000 /* erase - one page */
23 nand write 0x80000100 0x680000 0x20000 /* write the image - one page */
24
25 call with FDT:
26 nandecc hw
27 nand read 0x82000000 0x280000 0x400000 /* Read kernel image from NAND*/
28 tftpboot 0x80000100 devkit8000.dtb /* Read fdt */
29 spl export fdt 0x82000000 - 0x80000100 /* export FDT */
30 nand erase 0x680000 0x20000 /* erase - one page */
31 nand write <adress shown by spl export> 0x680000 0x20000