From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Marek Date: Tue, 16 Jun 2015 11:19:11 +0200 Subject: [U-Boot] Very slow fatload on bcm2835 In-Reply-To: <557F9FAE.3040602@wwwdotorg.org> References: <20150611203514.2f83d4b3@north> <557F9FAE.3040602@wwwdotorg.org> Message-ID: <557FEA0F.9050303@suse.cz> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 2015-06-16 06:01, Stephen Warren wrote: > On 06/11/2015 12:35 PM, Jakub Kicinski wrote: >> Hello! >> >> I'm using latest git source of U-Boot on Raspberry Pi Compute Module >> and performance of fatload is quite bad. Does anyone have any clue >> about what can be wrong? Is it the lack of cache? >> >> Sample boot log: > ... >> reading zImage >> 4003816 bytes read in 48930 ms (79.1 KiB/s) > > I see this too. I bisected it to: > 33fe2fb8df01 ARM: mmc: bcm283x: Remove get_timer_us() from mmc driver > > Marek, this is the second symptom I bisected to this patch. Something > seems quite wrong with it. Did changing to the other timer function > change the timer tick rate or something? FWIW, "sleep 10" at the shell > prompt appears to run for the correct amount of time, so I guess it's > not that. I think you meant Marek Va?ut. I'm Marek by last name :). Michal