board: turris: Do not cache Atsha device in BSS

Atsha device is used prior relocation and at this early stage BSS does not
have to be ready yet. So do not cache Atsha device in BSS.

Fixes support for other Turris routers.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

diff --git a/board/CZ.NIC/turris_atsha_otp.c b/board/CZ.NIC/turris_atsha_otp.c
index a4a77c74fb1907448e1dbd7caa88f54072211fb6..840721a9b737548aabaadb063e16a847e30db210 100644 (file)
--- a/board/CZ.NIC/turris_atsha_otp.c
+++ b/board/CZ.NIC/turris_atsha_otp.c
@@ -18,10 +18,8 @@
 
 static struct udevice *get_atsha204a_dev(void)
 {
-       static struct udevice *dev;
-
-       if (dev)
-               return dev;
+       /* Cannot be static because BSS does not have to be ready at this early stage */
+       struct udevice *dev;
 
        if (uclass_get_device_by_name(UCLASS_MISC, "atsha204a@64", &dev)) {
                puts("Cannot find ATSHA204A on I2C bus!\n");