Hi Fabien,
On 10/9/19 10:36 AM, Fabien Dessenne wrote:
> Load the optional resource table from the firmware, and write its
> address in the dedicated backup register.
What processor is this? Reason I ask is that you are using 0 as a no
resource table address, and if it is a valid address for that processor?
regards
Suman
>
> Signed-off-by: Fabien Dessenne <fabien.desse...@st.com>
> ---
> drivers/remoteproc/stm32_copro.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/remoteproc/stm32_copro.c
> b/drivers/remoteproc/stm32_copro.c
> index 40bba37..eef3416 100644
> --- a/drivers/remoteproc/stm32_copro.c
> +++ b/drivers/remoteproc/stm32_copro.c
> @@ -23,6 +23,7 @@
> * @hold_boot_offset: offset of the register controlling the hold
> boot setting
> * @hold_boot_mask: bitmask of the register for the hold boot field
> * @is_running: is the remote processor running
> + * @rsc_table_addr: resource table address
> */
> struct stm32_copro_privdata {
> struct reset_ctl reset_ctl;
> @@ -30,6 +31,7 @@ struct stm32_copro_privdata {
> uint hold_boot_offset;
> uint hold_boot_mask;
> bool is_running;
> + ulong rsc_table_addr;
> };
>
> /**
> @@ -141,6 +143,7 @@ static void *stm32_copro_device_to_virt(struct udevice
> *dev, ulong da,
> static int stm32_copro_load(struct udevice *dev, ulong addr, ulong size)
> {
> struct stm32_copro_privdata *priv;
> + ulong rsc_table_size;
> int ret;
>
> priv = dev_get_priv(dev);
> @@ -155,6 +158,12 @@ static int stm32_copro_load(struct udevice *dev, ulong
> addr, ulong size)
> return ret;
> }
>
> + if (rproc_elf32_load_rsc_table(dev, addr, size, &priv->rsc_table_addr,
> + &rsc_table_size)) {
> + priv->rsc_table_addr = 0;
> + dev_warn(dev, "No valid resource table for this firmware\n");
> + }
> +
> return rproc_elf32_load_image(dev, addr, size);
> }
>
> @@ -180,6 +189,10 @@ static int stm32_copro_start(struct udevice *dev)
> * rebooting autonomously
> */
> ret = stm32_copro_set_hold_boot(dev, true);
> + if (!ret)
> + /* Store rsc_address in bkp register */
> + writel(priv->rsc_table_addr, TAMP_COPRO_RSC_TBL_ADDRESS);
> +
> priv->is_running = !ret;
> return ret;
> }
>
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