mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 02:08:38 +00:00
b1a8de7e07
This patch adds the DTS source files needed for stm32f746-disco board The files are based on the stm32f429/469 files from current linux kernel. Source for "arch/arm/dts/armv7-m.dtsi": Linux: "arch/arm/boot/dts/armv7-m.dtsi" Signed-off-by: Michael Kurz <michi.kurz@gmail.com> Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
39 lines
1.2 KiB
Text
39 lines
1.2 KiB
Text
STM32 QSPI controller device tree bindings
|
|
--------------------------------------------
|
|
|
|
Required properties:
|
|
- compatible : should be "st,stm32-qspi".
|
|
- reg : 1. Physical base address and size of SPI registers map.
|
|
2. Physical base address & size of mapped NOR Flash.
|
|
- spi-max-frequency : Max supported spi frequency.
|
|
- status : enable in requried dts.
|
|
|
|
Connected flash properties
|
|
--------------------------
|
|
- spi-max-frequency : Max supported spi frequency.
|
|
- spi-tx-bus-width : Bus width (number of lines) for writing (1-4)
|
|
- spi-rx-bus-width : Bus width (number of lines) for reading (1-4)
|
|
- memory-map : Address and size for memory-mapping the flash
|
|
|
|
Example:
|
|
qspi: quadspi@A0001000 {
|
|
compatible = "st,stm32-qspi";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
reg = <0xA0001000 0x1000>, <0x90000000 0x10000000>;
|
|
reg-names = "QuadSPI", "QuadSPI-memory";
|
|
interrupts = <92>;
|
|
spi-max-frequency = <108000000>;
|
|
status = "okay";
|
|
|
|
qflash0: n25q128a {
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
compatible = "micron,n25q128a13", "spi-flash";
|
|
spi-max-frequency = <108000000>;
|
|
spi-tx-bus-width = <4>;
|
|
spi-rx-bus-width = <4>;
|
|
memory-map = <0x90000000 0x1000000>;
|
|
reg = <0>;
|
|
};
|
|
};
|