openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/arch/arm/boot/dts/kirkwood.dtsi

31 lines
567 B
Plaintext
Raw Normal View History

ARM: kirkwood: add dreamplug (fdt) support. Initially, copied guruplug-setup.c and did s/guruplug/dreamplug/g. Then, switched to SPI based NOR flash. After talking to Arnd Bergman, chose an incremental approach to adding devicetree support. First, we use the dtb to tell us we are on the dreamplug, then we gradually port over drivers. Driver porting will start with the uart (see next patch), and progress from there. Possibly, spi/flash/partitions will be next. When done, board-dt.c will no longer be dreamplug specific, and dt's can be made for the other kirkwood boards. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-28 00:07:13 +08:00
/include/ "skeleton.dtsi"
/ {
ARM: kirkwood: fdt: use mrvl ticker symbol Also, use inclusive register size for uart0. Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-03-07 23:03:57 +08:00
compatible = "mrvl,kirkwood";
ARM: kirkwood: add dreamplug (fdt) support. Initially, copied guruplug-setup.c and did s/guruplug/dreamplug/g. Then, switched to SPI based NOR flash. After talking to Arnd Bergman, chose an incremental approach to adding devicetree support. First, we use the dtb to tell us we are on the dreamplug, then we gradually port over drivers. Driver porting will start with the uart (see next patch), and progress from there. Possibly, spi/flash/partitions will be next. When done, board-dt.c will no longer be dreamplug specific, and dt's can be made for the other kirkwood boards. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-28 00:07:13 +08:00
ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0 Define both uarts in kirkwood.dtsi as they are common to all kirkwood SoCs. Each board may enable all or none of them, so they are disabled by default. uart0 is enabled for the dreamplug. tclk can vary for each board, so we leave it undefined in the kirkwood dtsi. Each board can then set it as appropriate when enabling the uart. Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-03-15 09:00:27 +08:00
ocp@f1000000 {
compatible = "simple-bus";
ranges = <0 0xf1000000 0x1000000>;
#address-cells = <1>;
#size-cells = <1>;
serial@12000 {
compatible = "ns16550a";
reg = <0x12000 0x100>;
reg-shift = <2>;
interrupts = <33>;
/* set clock-frequency in board dts */
status = "disabled";
};
serial@12100 {
compatible = "ns16550a";
reg = <0x12100 0x100>;
reg-shift = <2>;
interrupts = <34>;
/* set clock-frequency in board dts */
status = "disabled";
};
};
};