diff options
| author | Tony Lindgren | 2019-12-12 09:46:11 -0800 |
|---|---|---|
| committer | Tony Lindgren | 2020-01-23 08:23:26 -0800 |
| commit | fbb8bb8370f6fdaaaccf85201f4ee2a665aae42d (patch) | |
| tree | c998a79a631c334e9d11010483a3a021b8732e89 /arch/arm/boot | |
| parent | 723a567f43b8ffa8089009bc8a260cc6f963661e (diff) | |
ARM: dts: Configure omap4 rng to probe with ti-sysc
Add RNG interconnect data for omap4 similar to what dra7 has. The
clock is OMAP4_CM_L4SEC_RNG_CLKCTRL_OFFSET at offset address 0x01c0,
which matches what dra7 also has with DRA7_L4SEC_CLKCTRL_INDEX(0x1c0).
Note that we need to also add the related l4_secure clock entries.
I've only added RNG, the others can be added as they get tested.
They are probably very similar to what we already have for dra7
in dra7_l4sec_clkctrl_regs[].
With the clock tagged CLKF_SOC_NONSEC, clock is set disabled for secure
devices and clk_get() will fail. Additionally we disable the RNG target
module on droid4 to avoid introducing new boot time warnings.
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/motorola-mapphone-common.dtsi | 5 | ||||
| -rw-r--r-- | arch/arm/boot/dts/omap4-l4.dtsi | 20 |
2 files changed, 22 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/motorola-mapphone-common.dtsi index da6b107da84a..71e7ea903eb5 100644 --- a/arch/arm/boot/dts/motorola-mapphone-common.dtsi +++ b/arch/arm/boot/dts/motorola-mapphone-common.dtsi @@ -650,6 +650,11 @@ }; }; +/* RNG is used by secure mode and not accessible */ +&rng_target { + status = "disabled"; +}; + /* Configure pwm clock source for timers 8 & 9 */ &timer8 { assigned-clocks = <&abe_clkctrl OMAP4_TIMER8_CLKCTRL 24>; diff --git a/arch/arm/boot/dts/omap4-l4.dtsi b/arch/arm/boot/dts/omap4-l4.dtsi index 83f803be8ee2..e8fa3f389f25 100644 --- a/arch/arm/boot/dts/omap4-l4.dtsi +++ b/arch/arm/boot/dts/omap4-l4.dtsi @@ -2002,12 +2002,26 @@ }; }; - target-module@90000 { /* 0x48090000, ap 57 2a.0 */ - compatible = "ti,sysc"; - status = "disabled"; + rng_target: target-module@90000 { /* 0x48090000, ap 57 2a.0 */ + compatible = "ti,sysc-omap2", "ti,sysc"; + reg = <0x91fe0 0x4>, + <0x91fe4 0x4>; + reg-names = "rev", "sysc"; + ti,sysc-mask = <(SYSC_OMAP2_AUTOIDLE)>; + ti,sysc-sidle = <SYSC_IDLE_FORCE>, + <SYSC_IDLE_NO>; + /* Domains (P, C): l4per_pwrdm, l4_secure_clkdm */ + clocks = <&l4_secure_clkctrl OMAP4_RNG_CLKCTRL 0>; + clock-names = "fck"; #address-cells = <1>; #size-cells = <1>; ranges = <0x0 0x90000 0x2000>; + + rng: rng@0 { + compatible = "ti,omap4-rng"; + reg = <0x0 0x2000>; + interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>; + }; }; target-module@96000 { /* 0x48096000, ap 37 26.0 */ |