mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
fbc4a8a857
This driver provides UIO access to memory of a peripheral connected to the Freescale enhanced local bus controller (eLBC) interface using the general purpose chip-select mode (GPCM). Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.1 KiB
Plaintext
44 lines
1.1 KiB
Plaintext
* Chipselect/Local Bus
|
|
|
|
Properties:
|
|
- name : Should be localbus
|
|
- #address-cells : Should be either two or three. The first cell is the
|
|
chipselect number, and the remaining cells are the
|
|
offset into the chipselect.
|
|
- #size-cells : Either one or two, depending on how large each chipselect
|
|
can be.
|
|
- ranges : Each range corresponds to a single chipselect, and cover
|
|
the entire access window as configured.
|
|
|
|
Example:
|
|
localbus@f0010100 {
|
|
compatible = "fsl,mpc8272-localbus",
|
|
"fsl,pq2-localbus";
|
|
#address-cells = <2>;
|
|
#size-cells = <1>;
|
|
reg = <0xf0010100 0x40>;
|
|
|
|
ranges = <0x0 0x0 0xfe000000 0x02000000
|
|
0x1 0x0 0xf4500000 0x00008000
|
|
0x2 0x0 0xfd810000 0x00010000>;
|
|
|
|
flash@0,0 {
|
|
compatible = "jedec-flash";
|
|
reg = <0x0 0x0 0x2000000>;
|
|
bank-width = <4>;
|
|
device-width = <1>;
|
|
};
|
|
|
|
board-control@1,0 {
|
|
reg = <0x1 0x0 0x20>;
|
|
compatible = "fsl,mpc8272ads-bcsr";
|
|
};
|
|
|
|
simple-periph@2,0 {
|
|
compatible = "fsl,elbc-gpcm-uio";
|
|
reg = <0x2 0x0 0x10000>;
|
|
elbc-gpcm-br = <0xfd810800>;
|
|
elbc-gpcm-or = <0xffff09f7>;
|
|
};
|
|
};
|