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Date: Tue, 16 Nov 2021 00:53:00 +0000
From: Vincent Pelletier <plr.vincent@...il.com>
To: Rob Herring <robh+dt@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Qiu Wenbo <qiuwenbo@...inos.com.cn>,
Yash Shah <yash.shah@...ive.com>, devicetree@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
David Abdurachmanov <david.abdurachmanov@...ive.com>
Subject: [PATCH] riscv: dts: sifive unmatched: Fix regulator for board rev3.
The existing values are rejected by the da9063 regulator driver, as they
are unachievable with the declared chip setup (non-merged vcore and bmem
are unable to provide the declared curent).
Fix voltages to match rev3 schematics, which also matches their boot-up
configuration within the chip's available precision.
Declare bcore1/bcore2 and bmem/bio as merged.
Set ldo09 and ldo10 as always-on as their consumers are not declared but
exist.
Drop ldo current limits as there is no current limit feature for these
regulators in the DA9063. Fixes warnings like:
DA9063_LDO3: Operation of current configuration missing
Signed-off-by: Vincent Pelletier <plr.vincent@...il.com>
---
.../boot/dts/sifive/hifive-unmatched-a00.dts | 84 ++++++-------------
1 file changed, 24 insertions(+), 60 deletions(-)
diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
index e327831d0d48..bd6e90288c8a 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -93,47 +93,31 @@ wdt {
};
regulators {
- vdd_bcore1: bcore1 {
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <900000>;
- regulator-min-microamp = <5000000>;
- regulator-max-microamp = <5000000>;
- regulator-always-on;
- };
-
- vdd_bcore2: bcore2 {
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <900000>;
- regulator-min-microamp = <5000000>;
- regulator-max-microamp = <5000000>;
+ vdd_bcore: bcores-merged {
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ regulator-min-microamp = <4800000>;
+ regulator-max-microamp = <4800000>;
regulator-always-on;
};
vdd_bpro: bpro {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <2500000>;
- regulator-max-microamp = <2500000>;
+ regulator-min-microamp = <2400000>;
+ regulator-max-microamp = <2400000>;
regulator-always-on;
};
vdd_bperi: bperi {
- regulator-min-microvolt = <1050000>;
- regulator-max-microvolt = <1050000>;
+ regulator-min-microvolt = <1060000>;
+ regulator-max-microvolt = <1060000>;
regulator-min-microamp = <1500000>;
regulator-max-microamp = <1500000>;
regulator-always-on;
};
- vdd_bmem: bmem {
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- regulator-min-microamp = <3000000>;
- regulator-max-microamp = <3000000>;
- regulator-always-on;
- };
-
- vdd_bio: bio {
+ vdd_bmem_bio: bmem-bio-merged {
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-min-microamp = <3000000>;
@@ -144,86 +128,66 @@ vdd_bio: bio {
vdd_ldo1: ldo1 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <100000>;
- regulator-max-microamp = <100000>;
regulator-always-on;
};
vdd_ldo2: ldo2 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
regulator-always-on;
};
vdd_ldo3: ldo3 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_ldo4: ldo4 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
regulator-always-on;
};
vdd_ldo5: ldo5 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <100000>;
- regulator-max-microamp = <100000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_ldo6: ldo6 {
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-always-on;
};
vdd_ldo7: ldo7 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_ldo8: ldo8 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_ld09: ldo9 {
regulator-min-microvolt = <1050000>;
regulator-max-microvolt = <1050000>;
- regulator-min-microamp = <200000>;
- regulator-max-microamp = <200000>;
+ regulator-always-on;
};
vdd_ldo10: ldo10 {
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
- regulator-min-microamp = <300000>;
- regulator-max-microamp = <300000>;
+ regulator-always-on;
};
vdd_ldo11: ldo11 {
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
- regulator-min-microamp = <300000>;
- regulator-max-microamp = <300000>;
regulator-always-on;
};
};
--
2.33.1
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