drivers/i2c/tpm: Make driver safe for use in x86 pre-ram

Use CAR accessors where needed for accessing static data.
In some cases this required some minor restructuring to pass
in a variable instead of use a global one.

For the tpm_vendor_init the structure no longer has useful
defaults, which nobody was depending on anyway.  This now
requires the caller to provide a non-zero address.

Tested by enabling I2C TPM on reef and compiling successfully.

Change-Id: I8e02fbcebf5fe10c4122632eda1c48b247478289
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16394
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions