From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration
Date: Thu, 21 Apr 2016 16:07:40 +0100 [thread overview]
Message-ID: <1461251267-14897-1-git-send-email-lee.jones@linaro.org> (raw)
You'll notice that the voltage cell is populated with 0's. Voltage
information is very platform specific, even depends on 'cut' and
'substrate' versions. Thus it is left blank for a generic (safe)
implementation. If other nodes/properties are provided by the
bootloader, the ST CPUFreq driver will over-ride these generic
values.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
arch/arm/boot/dts/stih407-family.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 81f8121..9fa1e58 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -22,15 +22,29 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0>;
+
/* u-boot puts hpen in SBC dmem at 0xa4 offset */
cpu-release-addr = <0x94100A4>;
+
+ /* kHz uV */
+ operating-points = <1500000 0
+ 1200000 0
+ 800000 0
+ 500000 0>;
};
cpu at 1 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <1>;
+
/* u-boot puts hpen in SBC dmem at 0xa4 offset */
cpu-release-addr = <0x94100A4>;
+
+ /* kHz uV */
+ operating-points = <1500000 0
+ 1200000 0
+ 800000 0
+ 500000 0>;
};
};
--
2.8.0
next reply other threads:[~2016-04-21 15:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 15:07 Lee Jones [this message]
2016-04-21 15:07 ` [[PATCH v2] 2/8] ARM: dts: STi: STiH407: Provide CPU with clocking information Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 3/8] ARM: dts: STi: STiH407: Link CPU with its voltage supply Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 4/8] ARM: dts: STi: STiH407: Provide CPU with a means to look-up Major number Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 5/8] ARM: dts: STi: stih407-family: Add nodes for Mailbox Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 6/8] ARM: dts: STiH407: Add nodes for RemoteProc Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 7/8] ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 8/8] ARM: dts: STi: STih407: Switch LPC mode from RTC to Clocksource Lee Jones
2016-04-26 14:09 ` [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration Maxime Coquelin
2016-04-26 17:35 ` Lee Jones
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=1461251267-14897-1-git-send-email-lee.jones@linaro.org \
--to=lee.jones@linaro.org \
--cc=linux-arm-kernel@lists.infradead.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).