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firmware: imx: scu-pd: Add mu13 b side PD range
author
Daniel Baluta
<daniel.baluta@nxp.com>
Thu, 18 Jul 2019 10:25:18 +0000
(13:25 +0300)
committer
Shawn Guo
<shawnguo@kernel.org>
Tue, 23 Jul 2019 07:49:54 +0000
(15:49 +0800)
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>
drivers/firmware/imx/scu-pd.c
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diff --git
a/drivers/firmware/imx/scu-pd.c
b/drivers/firmware/imx/scu-pd.c
index 950d3023818628f61e02d778dd81f4c553fb3889..eb9700b66a766baf7d9291062ae75b6ac709b919 100644
(file)
--- 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 },