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authorDaniel Baluta <daniel.baluta@nxp.com>2019-07-18 13:25:18 +0300
committerShawn Guo <shawnguo@kernel.org>2019-07-23 10:49:54 +0300
commit590b346b58badfe87cb13a64abdc8af25e907846 (patch)
tree9dffc0c494e0102a1e4ca700ec98b8edc3be3049 /drivers/firmware/imx
parent6d9d21711b38c9cd5f70e04623151f498f3129ac (diff)
downloadlinux-590b346b58badfe87cb13a64abdc8af25e907846.tar.xz
firmware: imx: scu-pd: Add mu13 b side PD range
LSIO subsystem contains 14 MU instances. 5 MUs to communicate between AP <-> SCU - side-A PD range managed by AP - side-B PD range managed by SCU 9 MUs to communicate between all cores (AP/M4/DSP). - side-A PD range managed by core-A (AP/M4/DSP) - side-B PD range managed by core-B (AP/M4/DSP). Communication between AP <-> DSP is done through the assigned MU number 13. So, we power up side-A by the AP and we decide to power up side-B also from AP. This is because powering it up from DSP would be painful. Powering up side B from DSP would require the DSP to communicate with SCU and to keep things simple we don't want that now. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/firmware/imx')
-rw-r--r--drivers/firmware/imx/scu-pd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c
index 950d30238186..eb9700b66a76 100644
--- a/drivers/firmware/imx/scu-pd.c
+++ b/drivers/firmware/imx/scu-pd.c
@@ -93,6 +93,7 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] = {
{ "kpp", IMX_SC_R_KPP, 1, false, 0 },
{ "fspi", IMX_SC_R_FSPI_0, 2, true, 0 },
{ "mu_a", IMX_SC_R_MU_0A, 14, true, 0 },
+ { "mu_b", IMX_SC_R_MU_13B, 1, true, 13 },
/* CONN SS */
{ "usb", IMX_SC_R_USB_0, 2, true, 0 },