[PATCH V5 5/8] remoteproc: imx_rproc: initial support for mutilple start/stop method

peng.fan
2021-04-21T02:36:21Z

From: Peng Fan <peng.fan@nxp.com>

Add three methods IMX_RPROC_NONE(no need start/stop), IMX_RPROC_MMIO
(start/stop through mmio) and IMX_RPROC_SMC(start/stop through ARM SMCCC).

The current SoCs supported are all using IMX_RPROC_MMIO.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
drivers/remoteproc/imx_rproc.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 06dac92e98e6..6289aeae95b6 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -74,6 +74,15 @@ struct imx_rproc_att {
int flags;
};

+/* Remote core start/stop method */
+enum imx_rproc_method {
+ IMX_RPROC_NONE,
+ /* Through syscon regmap */
+ IMX_RPROC_MMIO,
+ /* Through ARM SMCCC */
+ IMX_RPROC_SMC,
+};
+
struct imx_rproc_dcfg {
u32 src_reg;
u32 src_mask;
@@ -81,6 +90,7 @@ struct imx_rproc_dcfg {
u32 src_stop;
const struct imx_rproc_att *att;
size_t att_size;
+ enum imx_rproc_method method;
};

struct imx_rproc {
@@ -183,6 +193,7 @@ static const struct imx_rproc_dcfg imx_rproc_cfg_imx8mq = {
.src_stop = IMX7D_M4_STOP,
.att = imx_rproc_att_imx8mq,
.att_size = ARRAY_SIZE(imx_rproc_att_imx8mq),
+ .method = IMX_RPROC_MMIO,
};

static const struct imx_rproc_dcfg imx_rproc_cfg_imx7d = {
@@ -192,6 +203,7 @@ static const struct imx_rproc_dcfg imx_rproc_cfg_imx7d = {
.src_stop = IMX7D_M4_STOP,
.att = imx_rproc_att_imx7d,
.att_size = ARRAY_SIZE(imx_rproc_att_imx7d),
+ .method = IMX_RPROC_MMIO,
};

static const struct imx_rproc_dcfg imx_rproc_cfg_imx6sx = {
@@ -201,6 +213,7 @@ static const struct imx_rproc_dcfg imx_rproc_cfg_imx6sx = {
.src_stop = IMX6SX_M4_STOP,
.att = imx_rproc_att_imx6sx,
.att_size = ARRAY_SIZE(imx_rproc_att_imx6sx),
+ .method = IMX_RPROC_MMIO,
};

static int imx_rproc_start(struct rproc *rproc)
--
2.30.0