Hi when you say you're collecting information for faster boot times, can you tell us more about what OS and FS you're running? Why are you focusing solely on speeding up the hardware as opposed to ways to make u-boot and the kernel to boot faster, for instance?
Here's a prior post on speeding up boot times: https://groups.google.com/g/beagleboard/c/RGbTFHQOj2E On Sunday, February 21, 2021 at 10:40:25 PM UTC-5 ha ppay wrote: > Hi Everyone, > Does anyone know any good methods or tips for finding out? > > Reagards, > BBBW User A. > 2021年2月18日木曜日 16:10:53 UTC+9 ha ppay: > >> >> Hi Everyone. >> I'm collecting information to get even faster boot times, >> I have 2 questions. >> It is written that it is possible to boot from MMC (8bit mode) (18.1.1 >> MMCHS Features) using MMC mode with TRM of am335x. >> - Clock support >> -96-MHz functional clock source input >> -up to 384Mbit/sec (48MByte/sec) in MMC mode 8-bit data transfer >> -up to 192Mbit/sec (24MByte/sec) in High-Speed SD mode 4-bit data >> transfer >> -up to 24Mbit/sec (3MByte/sec) in Default SD mode 1-bit data transfer >> >> Also, the SD_CON register DW8 Field has a flag for it. >> I expect this setting to start up much faster. >> In BBB, how do I set it to 8bit mode and how do I set the frequency to >> 384Mbit / sec (is it mmc_clk/clock-div in Devicetree?)? >> >> Regards, >> BBB User A. >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/34a6faf1-5197-4ba7-85ab-aeb02e8cd2dfn%40googlegroups.com.
