diff mbox series

[v3,2/4] remoteproc: qcom: q6v5: Add support for q6 rmb registers

Message ID 20240620120143.12375-3-quic_kbajaj@quicinc.com (mailing list archive)
State Not Applicable
Headers show
Series remoteproc: qcom_q6v5_pas: Add support for QDU1000/QRU1000 mpss | expand

Commit Message

Komal Bajaj June 20, 2024, 12:01 p.m. UTC
From: Melody Olvera <quic_molvera@quicinc.com>

When attaching a running Q6, the remoteproc driver needs a way
to communicate with the Q6 using rmb registers, so allow the
rmb register to be gotten from the device tree if present.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 drivers/remoteproc/qcom_q6v5.h     | 8 ++++++++
 drivers/remoteproc/qcom_q6v5_pas.c | 4 ++++
 2 files changed, 12 insertions(+)

--
2.42.0

Comments

Dmitry Baryshkov June 20, 2024, 9:38 p.m. UTC | #1
On Thu, Jun 20, 2024 at 05:31:41PM GMT, Komal Bajaj wrote:
> From: Melody Olvera <quic_molvera@quicinc.com>
> 
> When attaching a running Q6, the remoteproc driver needs a way
> to communicate with the Q6 using rmb registers, so allow the
> rmb register to be gotten from the device tree if present.

rmb or RMB? And what is it?

> 
> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
> Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
> ---
>  drivers/remoteproc/qcom_q6v5.h     | 8 ++++++++
>  drivers/remoteproc/qcom_q6v5_pas.c | 4 ++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5.h b/drivers/remoteproc/qcom_q6v5.h
> index 5a859c41896e..95824d5b64ce 100644
> --- a/drivers/remoteproc/qcom_q6v5.h
> +++ b/drivers/remoteproc/qcom_q6v5.h
> @@ -7,6 +7,12 @@
>  #include <linux/completion.h>
>  #include <linux/soc/qcom/qcom_aoss.h>
> 
> +#define RMB_BOOT_WAIT_REG 0x8
> +#define RMB_BOOT_CONT_REG 0xC
> +#define RMB_Q6_BOOT_STATUS_REG 0x10
> +
> +#define RMB_POLL_MAX_TIMES 250
> +
>  struct icc_path;
>  struct rproc;
>  struct qcom_smem_stat;
> @@ -16,6 +22,8 @@ struct qcom_q6v5 {
>  	struct device *dev;
>  	struct rproc *rproc;
> 
> +	void __iomem *rmb_base;
> +

Why is this a part of the common structure and is not a part of the _pas
struct?

>  	struct qcom_smem_state *state;
>  	struct qmp *qmp;
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
> index 8458bcfe9e19..b9759f6b2283 100644
> --- a/drivers/remoteproc/qcom_q6v5_pas.c
> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
> @@ -770,6 +770,10 @@ static int adsp_probe(struct platform_device *pdev)
>  		goto free_rproc;
>  	adsp->proxy_pd_count = ret;
> 
> +	adsp->q6v5.rmb_base = devm_platform_ioremap_resource_byname(pdev, "rmb");
> +	if (IS_ERR(adsp->q6v5.rmb_base))
> +		adsp->q6v5.rmb_base = NULL;
> +
>  	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, desc->load_state,
>  			     qcom_pas_handover);
>  	if (ret)
> --
> 2.42.0
>
diff mbox series

Patch

diff --git a/drivers/remoteproc/qcom_q6v5.h b/drivers/remoteproc/qcom_q6v5.h
index 5a859c41896e..95824d5b64ce 100644
--- a/drivers/remoteproc/qcom_q6v5.h
+++ b/drivers/remoteproc/qcom_q6v5.h
@@ -7,6 +7,12 @@ 
 #include <linux/completion.h>
 #include <linux/soc/qcom/qcom_aoss.h>

+#define RMB_BOOT_WAIT_REG 0x8
+#define RMB_BOOT_CONT_REG 0xC
+#define RMB_Q6_BOOT_STATUS_REG 0x10
+
+#define RMB_POLL_MAX_TIMES 250
+
 struct icc_path;
 struct rproc;
 struct qcom_smem_state;
@@ -16,6 +22,8 @@  struct qcom_q6v5 {
 	struct device *dev;
 	struct rproc *rproc;

+	void __iomem *rmb_base;
+
 	struct qcom_smem_state *state;
 	struct qmp *qmp;

diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 8458bcfe9e19..b9759f6b2283 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -770,6 +770,10 @@  static int adsp_probe(struct platform_device *pdev)
 		goto free_rproc;
 	adsp->proxy_pd_count = ret;

+	adsp->q6v5.rmb_base = devm_platform_ioremap_resource_byname(pdev, "rmb");
+	if (IS_ERR(adsp->q6v5.rmb_base))
+		adsp->q6v5.rmb_base = NULL;
+
 	ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, desc->load_state,
 			     qcom_pas_handover);
 	if (ret)