Commit 52bda8d3 authored by Peng Fan's avatar Peng Fan Committed by Bjorn Andersson
Browse files

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: default avatarPeng Fan <peng.fan@nxp.com>
Reviewed-by: default avatarMathieu 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: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent e13d1a43

drivers/remoteproc/imx_rproc.c

+13 −0
Original line number Diff line number Diff line
@@ -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)