mb/google/zork: Add helpers for v3 schematics and wifi power enable

This change adds following two helper functions:
1. variant_uses_v3_schematics() - Check whether the variant is using
v3 version of schematics.
2. variant_has_active_low_wifi_power() - Check whether the variant is
using active low power enable for WiFi.

In addition to this, Kconfig options are reorganized to add two new
configs - VARIANT_SUPPORTS_PRE_V3_SCHEMATICS and
VARIANT_SUPPORTS_WIFI_POWER_ACTIVE_HIGH. This allows the helper
functions to return `true` early without checking for board version.

Eventually, when a variant decides to drop support for pre-v3
schematics, it can be dropped from selecting
VARIANT_SUPPORTS_PRE_V3_SCHEMATICS. Similarly, when the variant
decides to drop support for active high power enable for WiFi, it can
be dropped from selecting VARIANT_SUPPORTS_WIFI_POWER_ACTIVE_HIGH.

Change-Id: I62851299e8dd7929a8e1e9a287389abd71c7706c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43224
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/mainboard/google/zork/variants/baseboard/helpers.c b/src/mainboard/google/zork/variants/baseboard/helpers.c
index 06cc9ad4ff..0a1cf5ccd1 100644
--- a/src/mainboard/google/zork/variants/baseboard/helpers.c
+++ b/src/mainboard/google/zork/variants/baseboard/helpers.c
@@ -113,3 +113,35 @@ int variant_has_nvme(void)
 {
 	return !!extract_field(FW_CONFIG_MASK_NVME, FW_CONFIG_SHIFT_NVME);
 }
+
+bool variant_uses_v3_schematics(void)
+{
+	uint32_t board_version;
+
+	if (!CONFIG(VARIANT_SUPPORTS_PRE_V3_SCHEMATICS))
+		return true;
+
+	if (google_chromeec_cbi_get_board_version(&board_version))
+		return false;
+
+	if ((int)board_version < CONFIG_VARIANT_MIN_BOARD_ID_V3_SCHEMATICS)
+		return false;
+
+	return true;
+}
+
+bool variant_has_active_low_wifi_power(void)
+{
+	uint32_t board_version;
+
+	if (!CONFIG(VARIANT_SUPPORTS_WIFI_POWER_ACTIVE_HIGH))
+		return true;
+
+	if (google_chromeec_cbi_get_board_version(&board_version))
+		return false;
+
+	if ((int)board_version < CONFIG_VARIANT_MIN_BOARD_ID_WIFI_POWER_ACTIVE_LOW)
+		return false;
+
+	return true;
+}