Dear colleagues,

I faced a problem lately with the udelay function in the Linux kernel. udelay uses loops_per_jiffy constant for its loops. lpj is calculated during the init phase of the kernel, and then the calibrate function is removed. The boot loader uses 792MHz and when the kernel comes up dvfs framework adjusts the frequency to 1GHz, too late, and then the system keeps using lpj that was calculated at 792MHz.

Ideally we need to get the uboot to clock the imx6 at 1GHz. Is there any special reason that u-boot does not pumps the clock up? Is there any patch out there that enables u-boot to start at 1GHz?

Thank you Andy