Re: [PATCH v4 7/7] arm64: dts: exynos: Add initial device tree support for Exynos7885 SoC

From: Marc Zyngier
Date: Tue Dec 07 2021 - 14:42:35 EST


On 2021-12-06 15:31, David Virag wrote:
Add initial Exynos7885 device tree nodes with dts for the Samsung Galaxy
A8 (2018), a.k.a. "jackpotlte", with model number "SM-A530F".
Currently this includes some clock support, UART support, and I2C nodes.

Signed-off-by: David Virag <virag.david003@xxxxxxxxx>

[...]

+ psci {
+ compatible = "arm,psci";
+ method = "smc";
+ cpu_suspend = <0xc4000001>;
+ cpu_off = <0x84000002>;
+ cpu_on = <0xc4000003>;

Aren't these the standard PSCI 0.2 function numbers? Can't you
make the compatible "arm,psci-0.2" instead?

+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ /* Hypervisor Virtual Timer interrupt is not wired to GIC */

I don't understand this comment. You seem to have a bunch of
ARMv8.0 cores, for which there is no such thing as a hypervisor
virtual timer (this is an ARMv8.1 addition).

+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
+ };

Thanks,

M.
--
Jazz is not dead. It just smells funny...