diff options
Diffstat (limited to 'drivers/net/fsl-mc/mc.c')
| -rw-r--r-- | drivers/net/fsl-mc/mc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c index f36fe06..45beffe 100644 --- a/drivers/net/fsl-mc/mc.c +++ b/drivers/net/fsl-mc/mc.c @@ -279,6 +279,40 @@ static int mc_fixup_dpl_mac_addr(void *blob, int dpmac_id, MC_FIXUP_DPL); } +void fdt_fsl_mc_fixup_iommu_map_entry(void *blob) +{ + u32 *prop; + u32 iommu_map[4]; + int offset; + int lenp; + + /* find fsl-mc node */ + offset = fdt_path_offset(blob, "/soc/fsl-mc"); + if (offset < 0) + offset = fdt_path_offset(blob, "/fsl-mc"); + if (offset < 0) { + printf("%s: ERROR: fsl-mc node not found in device tree (error %d)\n", + __func__, offset); + return; + } + + prop = fdt_getprop_w(blob, offset, "iommu-map", &lenp); + if (prop == NULL) { + debug("\n%s: ERROR: missing iommu-map in fsl-mc bus node\n", + __func__); + return; + } + + iommu_map[0] = cpu_to_fdt32(FSL_DPAA2_STREAM_ID_START); + iommu_map[1] = *++prop; + iommu_map[2] = cpu_to_fdt32(FSL_DPAA2_STREAM_ID_START); + iommu_map[3] = cpu_to_fdt32(FSL_DPAA2_STREAM_ID_END - + FSL_DPAA2_STREAM_ID_START + 1); + + fdt_setprop_inplace(blob, offset, "iommu-map", + iommu_map, sizeof(iommu_map)); +} + static int mc_fixup_dpc_mac_addr(void *blob, int dpmac_id, struct eth_device *eth_dev) { |