bcwc_pcie: Allocate S2 mem and add read/write macros

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
bcwc_pcie: Add some more info on the GPLv2

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
bcwc_pcie: Add missing iounmap and pci release of S2 mem

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
bcwc_pcie: Add memory verification functions

For DDR calibration we need to know if the memory is operational.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
bcwc_pcie: Add inital DDR calibration code

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
bcwc_pcie: Implement DDR read data fifo delay calibration

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>