forked from auracaster/openocd
ad87fbd1cf
Make sure raspberrypi-native.cfg cannot be used on RPi5. Add raspberrypi5-gpiod.cfg which uses linuxgpiod adapter driver. Issue a warning if PCIe is in power save mode. While on it, re-format warnings issued from Tcl to look similar to LOG_WARNING() output. Change-Id: If19b0350bd5fff83d9a0c65999e33b161fb6957a Signed-off-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-on: https://review.openocd.org/c/openocd/+/8333 Tested-by: jenkins Reviewed-by: Jonathan Bell <jonathan@raspberrypi.com>
30 lines
1023 B
INI
30 lines
1023 B
INI
# SPDX-License-Identifier: GPL-2.0-or-later
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# Config for Raspberry Pi 5 used as a bitbang adapter.
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# https://www.raspberrypi.com/documentation/computers/raspberry-pi.html
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# Raspberry Pi 5 is not compatible with bcm2835gpio native GPIO driver.
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# The linuxgpiod driver without configurable adapter speed runs at approximately
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# 800 kHz (SWD writes) and 360 kHz (SWD reads)
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adapter driver linuxgpiod
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proc read_file { name } {
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if {[catch {open $name r} fd]} {
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return ""
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}
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set result [read $fd]
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close $fd
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return $result
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}
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set pcie_aspm [read_file /sys/module/pcie_aspm/parameters/policy]
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# escaping [ ] characters in string match pattern does not work in Jim-Tcl
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if {![string match "*<performance>*" [string map { "\[" < "\]" > } $pcie_aspm]]} {
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echo "Warn : Switch PCIe power saving off or the first couple of pulses gets clocked as fast as 20 MHz"
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echo "Warn : Issue 'echo performance | sudo tee /sys/module/pcie_aspm/parameters/policy'"
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}
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set GPIO_CHIP 4
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source [find interface/raspberrypi-gpio-connector.cfg]
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