52 commits

Author	SHA1	Message	Date
bunnie	25e6bced00	add power-on utilization reporting ... there is now an extra field in the status bar that gives the %'age of time that the clocks are running.	2021-06-02 01:08:31 +08:00
bunnie	ee2e38be05	add commands to help manage wfi/power debugging	2021-06-01 17:02:30 +08:00
bunnie	61f95363fd	mark a commit for the latest build submitted for testing	2021-06-01 15:33:48 +08:00
bunnie	2f9fa57bdd	clock-gate based power management now seems to be more or less working	2021-05-31 23:14:35 +08:00
bunnie	d9e56fd321	very preliminary power savings working	2021-05-31 05:20:54 +08:00
bunnie	7c55925926	intermediate check-in on wfi	2021-05-30 23:07:16 +08:00
bunnie	afe8d8733d	updates to use the always-on power domain timers	2021-05-30 04:29:03 +08:00
bunnie	52c32cc4d1	auto-powerdown of sha block when not in use	2021-05-30 00:12:18 +08:00
bunnie	1e5bf6131d	update precursors with usb PHY reset patch	2021-05-23 23:55:55 +08:00
bunnie	fe6b417643	checkpoint	2021-05-08 01:13:30 +08:00
bunnie	7dd66a4c18	playback is mostly working and stable	2021-05-07 05:42:39 +08:00
bunnie	d17ae106f1	kernel panic on memory lend	2021-05-05 00:58:48 +08:00
bunnie	a4ca725c2a	add a reset to an i2c core	2021-05-03 21:24:37 +08:00
bunnie	0ca2f58c6e	add a note to indicate if we're in cold sleep ... it's not terribly aesthetic right now, but we can fix that later.	2021-05-02 03:36:54 +08:00
bunnie	b28dff273f	intermediate checkin figuring out ticktimer issue ... seems to be a hardware problem with the loading routine	2021-05-01 19:13:22 +08:00
bunnie	46fe3885dc	cleanup more turds left over during the bringup of suspend/resume	2021-05-01 00:35:32 +08:00
bunnie	bbcf698ff3	flesh out a simple touch-and-go suspend/resume demo loop ... now the debuggening begins. lord help us.	2021-04-29 02:56:53 +08:00
bunnie	e481df71da	add a resume kicker port for the handoff of bootloader to kernel	2021-04-29 01:05:50 +08:00
bunnie	3153d6aa66	intermediate progress on suspend/resume	2021-04-28 04:15:25 +08:00
bunnie	46741b5162	update fpga description	2021-04-27 21:56:35 +08:00
bunnie	6a703def63	commit the latest SVD files and other minor changes	2021-04-27 00:53:08 +08:00
bunnie	4022462144	fix RTC wakeup alarm code	2021-04-23 17:51:12 +08:00
bunnie	061284ec5f	debugging BOOST mode glitch issue ... Here's an arcane bug for you: When powering down, the Spartan 7 3.3V I/O drivers will output a roughly 800us wide glitch as 3.3V falls below around 1.7V, if the 0.95V core voltage comes down first (which it does because we have an active discharge on 0.95V, but not on 3.3V). In this case, it's just wide and high enough to cause the BOOST mode line to engage, which takes the BOOST output and ties it to VBUS, which is just enough for the system to think you're powering it back on again. Which is not what you want when powering down. The ultimate fix was to put a heftier pull-down on the BOOST line so that it can't trip the BOOST output into the VBUS. Another option could be more active discharge FETs, but that would require a full board spin and we are already at certification, so we'll stick with the stronger pull-down on BOOST. It seems to be a robust fix in the worst corner cases we can find. The downside is that when powering an external USB device, you are burning an extra 30mW of power overcoming the pull-down, but typically, any external USB devices plugged into Precursor will burn far in excess of that, so the delta should be negligible.	2021-04-23 15:33:14 +08:00
bunnie	07c20f6285	update to latest SVD	2021-04-23 01:49:31 +08:00
bunnie	084b66a927	update SVD references to latest SoC design (ticktimer/susres)	2021-04-22 18:08:43 +08:00
bunnie	8916f3e6a3	bump to latest soc.svd	2021-04-21 00:02:10 +08:00
bunnie	e5343bceb9	retrofit system to use the new device-based CSR image	2021-04-20 19:27:29 +08:00
bunnie	d807098ed1	more mods for the braille branch	2021-04-16 05:34:08 +08:00
bunnie	ac40075140	add keyboard input via UART	2021-04-16 04:11:25 +08:00
bunnie	024a072a7c	absorb WDT fix to eliminate a race condition	2021-04-15 18:40:00 +08:00
bunnie	93400df67c	an initial cut at fcc test commands	2021-04-15 04:10:47 +08:00
bunnie	9f4dc8a7b1	add wifi reset opcodes	2021-04-14 22:43:23 +08:00
bunnie	75295485a7	fix RTC callbacks	2021-04-14 02:58:22 +08:00
bunnie	b408882de7	add updated SVD files to track litex changes	2021-04-12 22:42:02 +08:00
bunnie	a9de4782c5	crashing on load when logger is in callback	2021-04-08 23:07:02 +08:00
bunnie	45c90659e5	rtc first draft	2021-04-08 02:30:57 +08:00
bunnie	da7ace04d4	rebuild and prep for testing on hardware	2021-04-04 02:15:46 +08:00
bunnie	ef3653bf36	add updated SVD files for WDT interrupt rev	2021-03-25 02:40:18 +08:00
bunnie	0e8767aea2	this commit crashes on boot	2021-03-16 19:07:03 +08:00
bunnie	2fb6ae5ee7	debugging i2c	2021-03-16 17:03:10 +08:00
bunnie	c9d7b1c504	add parsing for the <constants> extensions most recently added into Litex	2021-03-02 02:05:34 +08:00
bunnie	d7e1959fed	disintegrated fonts working	2021-02-27 14:35:53 +08:00
bunnie	0dc40f4185	attempt to separate fontmaps and loader out of kernel	2021-02-27 02:12:19 +08:00
bunnie	5b80b3fb42	get fcc-agent working again	2021-02-23 04:01:01 +08:00
bunnie	24e7885779	change out hw-image servers for rkyv testing	2021-02-12 01:51:42 +08:00
bunnie	4a32baf12f	fix SVD sample file issues that are breaking CI	2021-01-09 02:38:02 +08:00
bunnie	09f3390524	update soc.svd to have latest perihperals	2020-12-13 02:24:41 +08:00
Sean Cross	6008326297	svd2utra: update soc.svd with COM IRQ ... This should fix CI. Signed-off-by: Sean Cross <sean@xobs.io>	2020-11-25 20:47:17 +08:00
bunnie	f61ae8ee2a	update soc.svd example	2020-11-22 03:46:42 +08:00
Sean Cross	80419955fb	svd2utra: update example with latest svd ... Signed-off-by: Sean Cross <sean@xobs.io>	2020-11-11 12:49:42 +08:00