Hi Renaud, Am Donnerstag, dem 30.03.2023 um 13:31 +0000 schrieb Renaud Barbier: > > > > Can you compare SHA256 instead and see if the difference is still as stark? > > Make sure that CONFIG_DIGEST_SHA256_ARM is enabled. > The SHA256 is enabled. SHA256 on a 1 MB file: > Barebox: 843ms > Linux: > [root@openware]# time sha256sum /tmp/mtd0 > eef67a3327e3eaa50ee7b1dad87901465f00d76a6308e360a2fedab82c79f493 /tmp/mtd0 > > real 0m0.059s > user 0m0.056s > sys 0m0.001s > > On another note, the boot loader using the LS1021A is much slower than using the PPC P1014. > I compare those two as we used the LS1021A as a replacement for P1014 on a board (same peripherals, same boot sequence) > The P1014 reach the prompt in 200ms while the LS1021 takes 700ms. > > Also, I noticed that the pageflags is different for the DDR memory on Barebox and Linux as seen by the Lauterbach: > Barebox: write-back/no allocate > Linux : Inner:write-back/allocate outer: write-back/allocate > Could that mean the L2 cache Is not used? > > > > Do barebox and Linux run at the same CPU frequency? > According to the Lauterbach, clock ratio have not changed in the clocking registers > > As the LS1021A is based on a Cortex A7 your board lowlevel init needs to call cortex_a7_lowlevel_init() for the caches to work properly. It's probably a good idea to add a ls1021 lowlevel init function which calls both of those functions together, like imx6ul_cpu_lowlevel_init(). Regards, Lucas > > Cheers, > > Ahmad > > > > > > > > Cheers, > > > Renaud > > > > > > > > > > > > > > > > -- > > Pengutronix e.K. | | > > Steuerwalder Str. 21 | > > https://urldefense.com/v3/__http://www.pengutronix.de/__;!!HKOSU0g!D > > 4uFepgqngTTHamr_7tlQeQoRJqSLL8npxTFBWFF- > > kjpZuHgzi1quS6EE1ecjCKr_O_FJGPfkAnWXQyfONKJxqgrtQQ$ | > > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | >
