OpenOCD cannot connect to BCM2711's JTAG interface on RPi 4B board until the reset configuration mode is set as trst_only. According to Table 94. GPIO Pins Alternative Function Assignment of Broadcom's BCM2711 ARM Peripherals datasheet [1] and Raspberry Pi's GPIO control in config.txt document [2], only Test Reset (TRST) pin (no System Reset, SRST) is exposed. [1] https://datasheets.raspberrypi.org/bcm2711/bcm2711-peripherals.pdf [2] https://www.raspberrypi.org/documentation/configuration/config-txt/gpio.md Change-Id: I806f0be9700fa0f0944b42c8a651a5731adc762b Link: http://openocd.zylin.com/#/c/6364/1 Signed-off-by: Jian-Hong Pan <chienhung.pan@gmail.com> Reviewed-on: http://openocd.zylin.com/6367 Tested-by: jenkins Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com> |
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board | ||
chip | ||
cpld | ||
cpu | ||
fpga | ||
interface | ||
target | ||
test | ||
tools | ||
bitsbytes.tcl | ||
mem_helper.tcl | ||
memory.tcl | ||
mmr_helpers.tcl |