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soc/amd/stoneyridge: Set IOMMU support to follow device setting

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Instead of forcing the IOMMU to be enabled, change it to only be enabled
if the device is enabled in devicetree.

BUG=b:118612241
TEST=Verify that IOMMU is disabled.

Change-Id: I6cfd6c81f47de23c54a49ec7cf87b219215ced5e
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/29343
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@google.com>
This commit is contained in:
Martin Roth
2018-10-29 11:16:53 -06:00
parent d80884ea5a
commit 50f2e4ccec
2 changed files with 8 additions and 3 deletions
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3
src/soc/amd/stoneyridge/northbridge.c
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@@ -506,7 +506,8 @@ __weak void set_board_env_params(GNB_ENV_CONFIGURATION *params) { }
void SetNbEnvParams(GNB_ENV_CONFIGURATION *params)
{
params->IommuSupport = TRUE;
const struct device *dev = SOC_IOMMU_DEV;
params->IommuSupport = dev && dev->enabled;
set_board_env_params(params);
}