Hi,
On 22-01-11, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
>
> If there is a resource table device tree node, use the address as
> the resource table address, otherwise use the address(where
> .resource_table section loaded) inside the Cortex-M elf file.
>
> And there is an update in NXP SDK that Resource Domain Control(RDC)
> enabled to protect TCM, linux not able to write the TCM space when
> updating resource table status and cause kernel dump. So use the address
> from device tree could avoid kernel dump.
>
> Note: NXP M4 SDK not check resource table update, so it does not matter
> use whether resource table address specified in elf file or in device
> tree. But to reflect the fact that if people specific resource table
> address in device tree, it means people are aware and going to use it,
> not the address specified in elf file.
>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>
> V2:
> Update commit message
What is the status of this patch?
Regards,
Marco
>
> drivers/remoteproc/imx_rproc.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 7a096f1891e6..0bd24c937a73 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -499,6 +499,17 @@ static struct resource_table *imx_rproc_get_loaded_rsc_table(struct rproc *rproc
> return (struct resource_table *)priv->rsc_table;
> }
>
> +static struct resource_table *
> +imx_rproc_elf_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *fw)
> +{
> + struct imx_rproc *priv = rproc->priv;
> +
> + if (priv->rsc_table)
> + return (struct resource_table *)priv->rsc_table;
> +
> + return rproc_elf_find_loaded_rsc_table(rproc, fw);
> +}
> +
> static const struct rproc_ops imx_rproc_ops = {
> .prepare = imx_rproc_prepare,
> .attach = imx_rproc_attach,
> @@ -508,7 +519,7 @@ static const struct rproc_ops imx_rproc_ops = {
> .da_to_va = imx_rproc_da_to_va,
> .load = rproc_elf_load_segments,
> .parse_fw = imx_rproc_parse_fw,
> - .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
> + .find_loaded_rsc_table = imx_rproc_elf_find_loaded_rsc_table,
> .get_loaded_rsc_table = imx_rproc_get_loaded_rsc_table,
> .sanity_check = rproc_elf_sanity_check,
> .get_boot_addr = rproc_elf_get_boot_addr,
> --
> 2.25.1
>
>
