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remoteproc: imx_rproc: initial support for mutilple start/stop method 

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>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1620274123-1461-6-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Peng Fan 2021-05-06 12:08:40 +08:00 committed by Bjorn Andersson
parent e13d1a43aa
commit 52bda8d375
1 changed files with 13 additions and 0 deletions
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13
drivers/remoteproc/imx_rproc.c
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@ -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)