For jtag/drivers/bcm2835gpio dev_mem_fd has been updated within
bcm2835gpio_init with the add on of gpio to mem. This permits the
access to memory of GPIO without the need for root access.
For failed attempt, a fallback to original memory follows.
It should be noted that any printed error is relative to original
memory ("dev/mem").
Tested on EFM32GG12B390F board
Change-Id: I4540bdf62fb3b91a51221e277881adfae138dcc5
Signed-off-by: tscn92 <tscn@kamstrup.com>
Reviewed-on: http://openocd.zylin.com/5568
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
return ERROR_JTAG_INIT_FAILED;
}
- dev_mem_fd = open("/dev/mem", O_RDWR | O_SYNC);
+ dev_mem_fd = open("/dev/gpiomem", O_RDWR | O_SYNC);
+ if (dev_mem_fd < 0) {
+ LOG_DEBUG("Cannot open /dev/gpiomem, fallback to /dev/mem");
+ dev_mem_fd = open("/dev/mem", O_RDWR | O_SYNC);
+ }
if (dev_mem_fd < 0) {
perror("open");
return ERROR_JTAG_INIT_FAILED;
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