See the d2409e089c9 barebox commit ("RISC-V: debug_ll: ns16550:
align C access size with assembly's").

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Fixes:

xfuncs.c:22:9: warning: implicit declaration of function ‘printf’
xfuncs.c:41:1: warning: data definition has no type or storage class
   41 | EXPORT_SYMBOL(xmalloc);
      | ^~~~~~~~~~~~~
xfuncs.c:46:9: warning: implicit declaration of function ‘memset’
xfuncs.c:49:1: warning: data definition has no type or storage class
   49 | EXPORT_SYMBOL(xzalloc);
      | ^~~~~~~~~~~~~
libbb.c:18:16: warning: implicit declaration of function ‘strncpy’

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

  bus_spider.c: In function 'change_mode':
  bus_spider.c:42:9: warning: comparison between signed and unsigned
  integer expressions [-Wsign-compare]
     if (i == moden) {
           ^~

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

  i2c_mode.c:298:16: warning: initialization from incompatible pointer
  type [-Wincompatible-pointer-types]
    .print_help = i2c_print_help,
                  ^~~~~~~~~~~~~~

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

At the moment only HiZ and I2C modes are available.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

See Demo Video at YouTube: https://youtu.be/xk4pjrGDSXQ



Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>