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authorPeng Fan <peng.fan@nxp.com>2021-05-06 07:08:40 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2021-06-01 18:53:16 +0300
commit52bda8d375143585c366a7d4e5b5e680cf14100b (patch)
tree863cb4ba8fe49e13d68d4a8890354f4403e5315a /drivers/remoteproc
parente13d1a43aa0f6ef509c9dfda6489fe80b7315620 (diff)
downloadlinux-52bda8d375143585c366a7d4e5b5e680cf14100b.tar.xz
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>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/imx_rproc.c13
1 files changed, 13 insertions, 0 deletions
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)