[PATCH] drivers: net: fsl-mc: fixup msi-map property

[Diana Madalina Craciun]

Reviewed-by: Diana Craciun <diana.craciun at oss.nxp.com>

On 5/4/2020 2:47 PM, Laurentiu Tudor wrote:
> Similarly to iommu-map, the msi-map property must also be fixed up
> in the device tree, in order for the icid -> streamid translation
> be possible in the MSI case as well.
>
> Signed-off-by: Laurentiu Tudor <laurentiu.tudor at nxp.com>
> ---
>  drivers/net/fsl-mc/mc.c | 17 ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c
> index fee372968a..9c4ba7dbda 100644
> --- a/drivers/net/fsl-mc/mc.c
> +++ b/drivers/net/fsl-mc/mc.c
> @@ -317,7 +317,7 @@ void fdt_fixup_mc_ddr(u64 *base, u64 *size)
>  void fdt_fsl_mc_fixup_iommu_map_entry(void *blob)
>  {
>  	u32 *prop;
> -	u32 iommu_map[4];
> +	u32 iommu_map[4], phandle;
>  	int offset;
>  	int lenp;
>  
> @@ -346,6 +346,21 @@ void fdt_fsl_mc_fixup_iommu_map_entry(void *blob)
>  
>  	fdt_setprop_inplace(blob, offset, "iommu-map",
>  			    iommu_map, sizeof(iommu_map));
> +
> +	/* get phandle to MSI controller */
> +	prop = (u32 *)fdt_getprop(blob, offset, "msi-parent", 0);
> +	if (!prop) {
> +		debug("\n%s: ERROR: missing msi-parent\n", __func__);
> +		return;
> +	}
> +	phandle = fdt32_to_cpu(*prop);
> +
> +	/* also set msi-map property */
> +	fdt_appendprop_u32(blob, offset, "msi-map", FSL_DPAA2_STREAM_ID_START);
> +	fdt_appendprop_u32(blob, offset, "msi-map", phandle);
> +	fdt_appendprop_u32(blob, offset, "msi-map", FSL_DPAA2_STREAM_ID_START);
> +	fdt_appendprop_u32(blob, offset, "msi-map", FSL_DPAA2_STREAM_ID_END -
> +			   FSL_DPAA2_STREAM_ID_START + 1);
>  }
>  
>  static int mc_fixup_dpc_mac_addr(void *blob, int dpmac_id,