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| author | Daniel Baluta <daniel.baluta@nxp.com> | 2019-07-18 12:25:18 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2019-07-23 09:49:54 +0200 |
| commit | 590b346b58badfe87cb13a64abdc8af25e907846 (patch) | |
| tree | 9dffc0c494e0102a1e4ca700ec98b8edc3be3049 /drivers/firmware/imx/scu-pd.c | |
| parent | firmware: imx: scu-pd: Rename mu PD range to mu_a (diff) | |
| download | linux-590b346b58badfe87cb13a64abdc8af25e907846.tar.xz linux-590b346b58badfe87cb13a64abdc8af25e907846.zip | |
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/scu-pd.c')
| -rw-r--r-- | drivers/firmware/imx/scu-pd.c | 1 |
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 }, |