From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <92e70e1e0c508cb2b5da35e2f7c71f35@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Wed, 5 Oct 2016 10:25:08 +0100 In-Reply-To: <88bb02bc44fccd854900a891ec2b0835@hamnavoe.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] arm platform with sata and multiple nics Topicbox-Message-UUID: a3bf1a00-ead9-11e9-9d60-3106f5b1d025 > On pi3 I'm running spi at 25Mhz (with dma). Incidentally, the original raspberry pi linux kernel only supported programmed i/o for spi. If the documentation for the bcm2835 SoC had been the usual "just read the linux driver" that most vendors consider adequate, we wouldn't have known how to speed up the spi with dma. I wonder how well this ESPRESSOBin board and SoC will be documented? The kickstarter blurb lists a "host of operating systems" they say they will support, but they're all linux.