The power domains on the 32-bit Meson8/Meson8b/Meson8m2 SoCs are very
similar to what G12A still uses. The (known) differences are:
- Meson8 doesn't use any reset lines at all
- Meson8b and Meson8m2 use the same reset lines, which are different
from what the 64-bit SoCs use
- there is no "vapb" clock on the older SoCs
- amlogic,ao-sysctrl cannot point to the whole AO sysctrl region but
only the power management related registers
Add a new compatible string and adjust clock and reset line expectations
for each SoC.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
.../bindings/power/amlogic,meson-ee-pwrc.yaml | 74 +++++++++++++++----
include/dt-bindings/power/meson8-power.h | 13 ++++
2 files changed, 72 insertions(+), 15 deletions(-)
create mode 100644 include/dt-bindings/power/meson8-power.h
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
index 6c6079fe1351..2a1c933ae434 100644
--- a/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
+++ b/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
@@ -23,13 +23,19 @@ description: |+
properties:
compatible:
enum:
+ - amlogic,meson8-pwrc
+ - amlogic,meson8b-pwrc
+ - amlogic,meson8m2-pwrc
- amlogic,meson-g12a-pwrc
- amlogic,meson-sm1-pwrc
clocks:
- minItems: 2
+ minItems: 1
+ maxItems: 2
clock-names:
+ minItems: 1
+ maxItems: 2
items:
- const: vpu
- const: vapb
@@ -38,18 +44,7 @@ properties:
minItems: 11
reset-names:
- items:
- - const: viu
- - const: venc
- - const: vcbus
- - const: bt656
- - const: rdma
- - const: venci
- - const: vencp
- - const: vdac
- - const: vdi6
- - const: vencl
- - const: vid_lock
+ minItems: 11
"#power-domain-cells":
const: 1
@@ -59,12 +54,61 @@ properties:
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - amlogic,meson8b-pwrc
+ - amlogic,meson8m2-pwrc
+ then:
+ properties:
+ reset-names:
+ items:
+ - const: dblk
+ - const: pic_dc
+ - const: hdmi_apb
+ - const: hdmi_system
+ - const: venci
+ - const: vencp
+ - const: vdac
+ - const: vencl
+ - const: viu
+ - const: venc
+ - const: rdma
+ required:
+ - resets
+ - reset-names
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - amlogic,meson-g12a-pwrc
+ - amlogic,meson-sm1-pwrc
+ then:
+ properties:
+ reset-names:
+ items:
+ - const: viu
+ - const: venc
+ - const: vcbus
+ - const: bt656
+ - const: rdma
+ - const: venci
+ - const: vencp
+ - const: vdac
+ - const: vdi6
+ - const: vencl
+ - const: vid_lock
+ required:
+ - resets
+ - reset-names
+
required:
- compatible
- clocks
- clock-names
- - resets
- - reset-names
- "#power-domain-cells"
- amlogic,ao-sysctrl
diff --git a/include/dt-bindings/power/meson8-power.h b/include/dt-bindings/power/meson8-power.h
new file mode 100644
index 000000000000..dd8b2ddb82a7
--- /dev/null
+++ b/include/dt-bindings/power/meson8-power.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+/*
+ * Copyright (c) 2019 Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
+ */
+
+#ifndef _DT_BINDINGS_MESON8_POWER_H
+#define _DT_BINDINGS_MESON8_POWER_H
+
+#define PWRC_MESON8_VPU_ID 0
+#define PWRC_MESON8_ETHERNET_MEM_ID 1
+#define PWRC_MESON8_AUDIO_DSP_MEM_ID 2
+
+#endif /* _DT_BINDINGS_MESON8_POWER_H */
--
2.26.1
