jtag/drivers/bcm2835gpio: bcm2835gpio_init has been updated

[fw/openocd] / src / jtag / drivers / bcm2835gpio.c

diff --git a/src/jtag/drivers/bcm2835gpio.c b/src/jtag/drivers/bcm2835gpio.c
index bbc87d3dd373c1cf67310d986e2f3084a79cbb1c..df557c5c63826a33543e8f424522cf79d9638440 100644 (file)
--- a/src/jtag/drivers/bcm2835gpio.c
+++ b/src/jtag/drivers/bcm2835gpio.c
@@ -466,7 +466,11 @@ static int bcm2835gpio_init(void)
                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;