@@ -134,6 +134,8 @@
&rcc {
u-boot,dm-pre-reloc;
+ #address-cells = <1>;
+ #size-cells = <0>;
};
&sdmmc1 {
@@ -105,6 +105,8 @@
/* VCO = 1300.0 MHz => P = 650 (CPU) */
pll1: st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 2 80 0 0 0 PQR(1,0,0) >;
frac = < 0x800 >;
u-boot,dm-pre-reloc;
@@ -112,6 +114,8 @@
/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
pll2: st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 2 65 1 0 0 PQR(1,1,1) >;
frac = < 0x1400 >;
u-boot,dm-pre-reloc;
@@ -119,6 +123,8 @@
/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
pll3: st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 1 33 1 16 36 PQR(1,1,1) >;
frac = < 0x1a04 >;
u-boot,dm-pre-reloc;
@@ -126,6 +132,8 @@
/* VCO = 480.0 MHz => P = 120, Q = 40, R = 96 */
pll4: st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 1 39 3 11 4 PQR(1,1,1) >;
u-boot,dm-pre-reloc;
};
@@ -124,6 +124,8 @@
/* VCO = 1300.0 MHz => P = 650 (CPU) */
pll1: st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 2 80 0 0 0 PQR(1,0,0) >;
frac = < 0x800 >;
u-boot,dm-pre-reloc;
@@ -131,6 +133,8 @@
/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
pll2: st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 2 65 1 0 0 PQR(1,1,1) >;
frac = < 0x1400 >;
u-boot,dm-pre-reloc;
@@ -138,6 +142,8 @@
/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
pll3: st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 1 33 1 16 36 PQR(1,1,1) >;
frac = < 0x1a04 >;
u-boot,dm-pre-reloc;
@@ -145,6 +151,8 @@
/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
pll4: st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 3 98 5 7 7 PQR(1,1,1) >;
u-boot,dm-pre-reloc;
};
@@ -121,6 +121,8 @@
/* VCO = 1300.0 MHz => P = 650 (CPU) */
pll1: st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 2 80 0 0 0 PQR(1,0,0) >;
frac = < 0x800 >;
u-boot,dm-pre-reloc;
@@ -128,6 +130,8 @@
/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
pll2: st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 2 65 1 0 0 PQR(1,1,1) >;
frac = < 0x1400 >;
u-boot,dm-pre-reloc;
@@ -135,6 +139,8 @@
/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
pll3: st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 1 33 1 16 36 PQR(1,1,1) >;
frac = < 0x1a04 >;
u-boot,dm-pre-reloc;
@@ -142,6 +148,8 @@
/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
pll4: st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 3 98 5 7 7 PQR(1,1,1) >;
u-boot,dm-pre-reloc;
};
@@ -156,6 +156,8 @@
/* VCO = 1300.0 MHz => P = 650 (CPU) */
pll1: st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 2 80 0 0 0 PQR(1,0,0) >;
frac = < 0x800 >;
u-boot,dm-pre-reloc;
@@ -163,6 +165,8 @@
/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
pll2: st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 2 65 1 0 0 PQR(1,1,1) >;
frac = < 0x1400 >;
u-boot,dm-pre-reloc;
@@ -170,6 +174,8 @@
/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
pll3: st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 1 33 1 16 36 PQR(1,1,1) >;
frac = < 0x1a04 >;
u-boot,dm-pre-reloc;
@@ -177,6 +183,8 @@
/* VCO = 600.0 MHz => P = 50, Q = 50, R = 50 */
pll4: st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 1 49 11 11 11 PQR(1,1,1) >;
u-boot,dm-pre-reloc;
};
@@ -12,6 +12,9 @@ describes the fields added for clock tree initialization which are not present
in Linux binding for compatible "st,stm32mp1-rcc" defined in st,stm32mp1-rcc.txt
file.
+This parent node may optionally have additional children nodes which define
+specific init values for RCC elements.
+
The added properties for clock tree initialization are:
Required properties:
@@ -78,13 +81,16 @@ Required properties:
>;
Optional Properties:
-- st,pll : A specific PLL configuration, including frequency.
+- children for a PLL configuration with "st,stm32mp1-pll" compatible
- PLL children nodes for PLL1 to PLL4 (see ref manual for details)
- are listed with associated index 0 to 3 (st,pll at 0 to st,pll at 3).
- PLLx is off when the associated node is absent.
+ each PLL children nodes for PLL1 to PLL4 (see ref manual for details)
+ are listed with associated reg 0 to 3.
+ PLLx is off when the associated node is absent or deactivated.
Here are the available properties for each PLL node:
+ - compatible: should be "st,stm32mp1-pll"
+
+ - reg: index of the pll instance
- cfg: The parameters for PLL configuration in the following order:
DIVM DIVN DIVP DIVQ DIVR Output.
@@ -118,18 +124,26 @@ Optional Properties:
Example:
st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 1 53 0 0 0 1 >;
frac = < 0x810 >;
};
st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 1 43 1 0 0 PQR(0,1,1) >;
csg = < 10 20 1 >;
};
st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 2 85 3 13 3 0 >;
csg = < 10 20 SSCG_MODE_CENTER_SPREAD >;
};
st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 2 78 4 7 9 3 >;
};
@@ -277,6 +291,8 @@ Example of clock tree initialization
u-boot,dm-pre-reloc;
compatible = "st,stm32mp1-rcc", "syscon";
reg = <0x50000000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
#clock-cells = <1>;
#reset-cells = <1>;
interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
@@ -347,6 +363,8 @@ Example of clock tree initialization
/* VCO = 1300.0 MHz => P = 650 (CPU) */
pll1: st,pll at 0 {
+ compatible = "st,stm32mp1-pll";
+ reg = <0>;
cfg = < 2 80 0 0 0 PQR(1,0,0) >;
frac = < 0x800 >;
u-boot,dm-pre-reloc;
@@ -355,6 +373,8 @@ Example of clock tree initialization
/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU),
R = 533 (DDR) */
pll2: st,pll at 1 {
+ compatible = "st,stm32mp1-pll";
+ reg = <1>;
cfg = < 2 65 1 0 0 PQR(1,1,1) >;
frac = < 0x1400 >;
u-boot,dm-pre-reloc;
@@ -362,6 +382,8 @@ Example of clock tree initialization
/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
pll3: st,pll at 2 {
+ compatible = "st,stm32mp1-pll";
+ reg = <2>;
cfg = < 1 33 1 16 36 PQR(1,1,1) >;
frac = < 0x1a04 >;
u-boot,dm-pre-reloc;
@@ -369,6 +391,8 @@ Example of clock tree initialization
/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
pll4: st,pll at 3 {
+ compatible = "st,stm32mp1-pll";
+ reg = <3>;
cfg = < 3 98 5 7 7 PQR(1,1,1) >;
u-boot,dm-pre-reloc;
};
Fix the following DT dtc warnings for stm32mp1 boards: Warning (unit_address_vs_reg): /soc/rcc at 50000000/st,pll at 0: node has a unit name, but no reg property Warning (unit_address_vs_reg): /soc/rcc at 50000000/st,pll at 1: node has a unit name, but no reg property Warning (unit_address_vs_reg): /soc/rcc at 50000000/st,pll at 2: node has a unit name, but no reg property Warning (unit_address_vs_reg): /soc/rcc at 50000000/st,pll at 3: node has a unit name, but no reg property Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com> --- arch/arm/dts/stm32mp157-u-boot.dtsi | 2 ++ .../arm/dts/stm32mp157a-avenger96-u-boot.dtsi | 8 +++++ arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 8 +++++ arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi | 8 +++++ arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi | 8 +++++ .../clock/st,stm32mp1.txt | 32 ++++++++++++++++--- 6 files changed, 62 insertions(+), 4 deletions(-)