mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
367f15d313
Provide bindings for the Broadcom STB DDR PHY Front End (DPFE). Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
28 lines
1.0 KiB
Plaintext
28 lines
1.0 KiB
Plaintext
DDR PHY Front End (DPFE) for Broadcom STB
|
|
=========================================
|
|
|
|
DPFE and the DPFE firmware provide an interface for the host CPU to
|
|
communicate with the DCPU, which resides inside the DDR PHY.
|
|
|
|
There are three memory regions for interacting with the DCPU. These are
|
|
specified in a single reg property.
|
|
|
|
Required properties:
|
|
- compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu"
|
|
or "brcm,dpfe-cpu"
|
|
- reg: must reference three register ranges
|
|
- start address and length of the DCPU register space
|
|
- start address and length of the DCPU data memory space
|
|
- start address and length of the DCPU instruction memory space
|
|
- reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem";
|
|
they must be in the same order as the register declarations
|
|
|
|
Example:
|
|
dpfe_cpu0: dpfe-cpu@f1132000 {
|
|
compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu";
|
|
reg = <0xf1132000 0x180
|
|
0xf1134000 0x1000
|
|
0xf1138000 0x4000>;
|
|
reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem";
|
|
};
|