mbox series

[v2,0/2] Add support for IO memory mapped EC

Message ID 20250106185232.1635556-1-gwendal@chromium.org (mailing list archive)
Headers show
Series Add support for IO memory mapped EC | expand

Message

Gwendal Grignou Jan. 6, 2025, 6:52 p.m. UTC 
Some EC - Realtek - have their register IO mapped by the BIOS -
coreboot. They are not using the well know io register.

The memory mapping information is retrieved through the ACPI CRS
resource, and is used to access the registers.

To ease the support of these ECs, the global structure and accessor
funcions are now aware of the EC device private structure.

Gwendal Grignou (2):
  platform/chrome: cros_ec_lpc: Merge lpc_driver_ops into ec
    private structure
  platform/chrome: cros_ec_lpc: Add Support for direct EC
    register memory access

---
Changes in v2:
  Removed obvious comments, unnecessary case statement and fix error
  code return.

 drivers/platform/chrome/cros_ec_lpc.c | 203 ++++++++++++++++++--------
 1 file changed, 139 insertions(+), 64 deletions(-)