From: Peng Fan Date: Thu, 6 May 2021 04:08:40 +0000 (+0800) Subject: remoteproc: imx_rproc: initial support for mutilple start/stop method X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=52bda8d375143585c366a7d4e5b5e680cf14100b;p=linux.git 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 Reviewed-by: Mathieu Poirier Link: https://lore.kernel.org/r/1620274123-1461-6-git-send-email-peng.fan@oss.nxp.com Signed-off-by: Bjorn Andersson --- diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index 06dac92e98e60..6289aeae95b64 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)