From: Magnus Damm <damm@xxxxxxxxxxxxx> For testing purpose enable IPMMU for Ethernet-AVB on R-Car M3-N/V3H/E3. Not for upstream merge. Not-Yet-Signed-off-by: Magnus Damm <damm@xxxxxxxxxxxxx> --- Applies on top of renesas-devel-20181019-v4.19-rc8 drivers/iommu/ipmmu-vmsa.c | 4 ++++ 1 file changed, 4 insertions(+) --- 0001/drivers/iommu/ipmmu-vmsa.c +++ work/drivers/iommu/ipmmu-vmsa.c 2018-10-22 02:46:30.139880557 +0900 @@ -756,6 +756,10 @@ static int ipmmu_init_platform_device(st static bool ipmmu_slave_whitelist(struct device *dev) { + /* R-Car M3-N/V3H/E3 Ethernet-AVB */ + if (!strcmp(dev_name(dev), "e6800000.ethernet")) + return true; + /* By default, do not allow use of IPMMU */ return false; }