timer: sp804: Fix dev_read_addr error check

dev_read_addr returns FDT_ADDR_T_NONE (-1) in case of error
and not 0.

Signed-off-by: Francois Berder <fberder@outlook.fr>

diff --git a/drivers/timer/sp804_timer.c b/drivers/timer/sp804_timer.c
index 05532e3330cae52d5874b1b6a117e48ad59f05be..d1a5fc8c5bf1736680190ca0f71213af0c213e5e 100644 (file)
--- a/drivers/timer/sp804_timer.c
+++ b/drivers/timer/sp804_timer.c
@@ -44,7 +44,7 @@ static int sp804_clk_of_to_plat(struct udevice *dev)
        struct sp804_timer_plat *plat = dev_get_plat(dev);
 
        plat->base = dev_read_addr(dev);
-       if (!plat->base)
+       if (plat->base == FDT_ADDR_T_NONE)
                return -ENOENT;
 
        return 0;