armv8: correct dcache line size calculation

The CCSIDR_EL1 register has cache attribute information
for a given cache selection in CSSELR_EL1. However, the
cache isn't being selected before reading CCSIDR_EL1.
Instead use CTR_EL0 which better fits with the semantics
of dcache_line_bytes(). CTR_EL0 has the minimum data cache
line size of all caches in the system encoded in 19:16 encoded
as lg(line size in words).

BUG=None
TEST=Built.

Original-Change-Id: I2cbf888a93031736e668918de928c3a99c26bedd
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/208720
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 8d5dfba35d74fc4c6ee14365a2e9d9ed9f43115d)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I1db47ff5850c276d0246ac67e8b96f7ed19016c0
Reviewed-on: http://review.coreboot.org/8642
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions