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ARM: dts: AM33xx-l4: Update PRUSS interconnect target-module node

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The PRU-ICSS present on some AM33xx SoCs has a very unique SYSC
register. The IP also uses a hard-reset line, and requires this
PRCM reset to be deasserted to be able to access any registers.
Update the existing PRUSS interconnect target-module with all
the required properties.

The PRUSS device itself shall be added as a child node to this
interconnect node in the future. PRU-ICSS is not supported on
AM3351/AM3352/AM3354 SoCs though in the AM33xx family, so the
target module node should be disabled in derivative board files
that use any of these SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Suman Anna 2020-02-27 16:28:35 -06:00 committed by Tony Lindgren
parent a3e2a6c85c
commit ce5ca149a6
1 changed files with 18 additions and 3 deletions
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21
arch/arm/boot/dts/am33xx-l4.dtsi
View file

@ -759,12 +759,27 @@ target-module@200000 { /* 0x4a200000, ap 7 02.0 */
ranges = <0x0 0x200000 0x80000>;
};
target-module@300000 { /* 0x4a300000, ap 9 04.0 */
compatible = "ti,sysc";
status = "disabled";
pruss_tm: target-module@300000 { /* 0x4a300000, ap 9 04.0 */
compatible = "ti,sysc-pruss", "ti,sysc";
reg = <0x326000 0x4>,
<0x326004 0x4>;
reg-names = "rev", "sysc";
ti,sysc-mask = <(SYSC_PRUSS_STANDBY_INIT |
SYSC_PRUSS_SUB_MWAIT)>;
ti,sysc-midle = <SYSC_IDLE_FORCE>,
<SYSC_IDLE_NO>,
<SYSC_IDLE_SMART>;
ti,sysc-sidle = <SYSC_IDLE_FORCE>,
<SYSC_IDLE_NO>,
<SYSC_IDLE_SMART>;
clocks = <&pruss_ocp_clkctrl AM3_PRUSS_OCP_PRUSS_CLKCTRL 0>;
clock-names = "fck";
resets = <&prm_per 1>;
reset-names = "rstctrl";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x300000 0x80000>;
status = "disabled";
};
};
};