On 2019-09-28 13:07, Stefan Wahren wrote:
This adds minimal support for the new Raspberry Pi 4 without the
fancy stuff like GENET, PCIe, xHCI, 40 bit DMA and V3D. The RPi 4 is
available in 3 different variants (1, 2 and 4 GB RAM), so leave the
memory
size to zero and let the bootloader take care of it. The DWC2 is
still
usable as peripheral via the USB-C port.
Other differences to the Raspberry Pi 3:
- additional GIC 400 Interrupt controller
- new thermal IP and HWRNG
- additional MMC interface (emmc2)
- additional UART, I2C, SPI and PWM interfaces
- clock stretching bug in I2C IP has been fixed
Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
Acked-by: Eric Anholt <eric@xxxxxxxxxx>
[...]
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ /* This only applies to the ARMv7 stub */
+ arm,cpu-registers-not-fw-configured;
+
+ /* The ARM cores doesn't enter deep enough states */
+ always-on;
I already commented on this. The A72 not entering a deep enough sleep
state to
lose its comparator seems dubious at best. The right way to do this is
to have
a global timer, which you said the platform has.
Please drop this.
M.
--
Jazz is not dead. It just smells funny...
