On 20:26 Fri 03 Apr , [email protected] wrote: > Hi All, > > I am currently working on OMAP3530 fromMistral solutions. This is the > booting sequence in OMAP3530 > > The OMAP3530 contains a boot ROM starting at location 0x00000000. When > power on, the PC register jumps there. The boot ROM then looks at the > sys_boot pins to determine boot order. For NAND booting, > > the x-loader is located at offset 0 in NAND. Actually the first two words > in NAND are the length of the x-loader and the address in internal RAM to > load it. The boot ROM then reads the x-loader from NAND into > > internal RAM and jumps to that. The x-loader configures the clocks and > SDRAM and then reads u-boot from NAND into SDRAM. After u-boot is in SDRAM, > the x-loader jumps to u-boot and u-boot starts to run. If > > I don't press any key for 4 seconds uboot brings linux and linux shell comes > up. > > Instead of linux I need to bring my custom RTOS. As linux, custom RTOS will > reside in NAND Flash too. > > What is the procedure for bringing an OS from uboot.? As uboot bringing > Linux , it needs to bring an RTOS too. > > How do I write a script for that? How do I tell uboot to load My custom rtos > instead of linux. I need to avoid the loading of linux and bring in my RTOS it will depend on your OS boot requierement but if you can boot it as a elf try bootelf
Best Regards, J. _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
