From: Daniel Baluta <daniel.baluta@nxp.com>
To: shawnguo@kernel.org
Cc: s.hauer@pengutronix.de, =kernel@pengutronix.de,
festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com,
ulf.hansson@linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, shengjiu.wang@nxp.com,
paul.olaru@nxp.com, Daniel Baluta <daniel.baluta@nxp.com>
Subject: [PATCH v2 2/3] firmware: imx: scu-pd: Add mu13 b side PD range
Date: Thu, 18 Jul 2019 13:25:18 +0300 [thread overview]
Message-ID: <20190718102519.31855-3-daniel.baluta@nxp.com> (raw)
In-Reply-To: <20190718102519.31855-1-daniel.baluta@nxp.com>
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>
---
drivers/firmware/imx/scu-pd.c | 1 +
1 file changed, 1 insertion(+)
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 },
--
2.17.1
next prev parent reply other threads:[~2019-07-18 10:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-18 10:25 [PATCH v2 0/3] Add power domain range for MU13 side b / IRQSTR_DSP Daniel Baluta
2019-07-18 10:25 ` [PATCH v2 1/3] firmware: imx: scu-pd: Rename mu PD range to mu_a Daniel Baluta
2019-07-18 10:25 ` Daniel Baluta [this message]
2019-07-18 11:56 ` [PATCH v2 2/3] firmware: imx: scu-pd: Add mu13 b side PD range Aisheng Dong
2019-07-18 10:25 ` [PATCH v2 3/3] firmware: imx: scu-pd: Add IRQSTR_DSP " Daniel Baluta
2019-07-23 7:50 ` [PATCH v2 0/3] Add power domain range for MU13 side b / IRQSTR_DSP Shawn Guo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190718102519.31855-3-daniel.baluta@nxp.com \
--to=daniel.baluta@nxp.com \
--cc==kernel@pengutronix.de \
--cc=aisheng.dong@nxp.com \
--cc=festevam@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paul.olaru@nxp.com \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
--cc=shengjiu.wang@nxp.com \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).