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boards: stm32: set compatible and name for sdram nodes

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Add the compatible property to the board level sdram nodes in few stm32
dts files so that the zephyr,memory-region name is used correctly in the
linker script.

Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
This commit is contained in:
Fabio Baltieri 2021-12-09 23:32:48 +00:00 committed by Maureen Helm
parent 2bc9cb4691
commit 4c937fd16d
4 changed files with 8 additions and 0 deletions
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1
boards/arm/stm32f429i_disc1/stm32f429i_disc1.dts
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@ -22,6 +22,7 @@
};
sdram2: sdram@d0000000 {
compatible = "mmio-sram";
device_type = "memory";
reg = <0xd0000000 DT_SIZE_M(8)>;
zephyr,memory-region = "SDRAM2";

2
boards/arm/stm32f769i_disco/stm32f769i_disco.dts
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@ -23,8 +23,10 @@
};
sdram1: sdram@c0000000 {
compatible = "mmio-sram";
device_type = "memory";
reg = <0xc0000000 DT_SIZE_M(16)>;
zephyr,memory-region = "SDRAM1";
};
leds {

1
boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts
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@ -22,6 +22,7 @@
};
sdram2: sdram@d0000000 {
compatible = "mmio-sram";
device_type = "memory";
reg = <0xd0000000 DT_SIZE_M(32)>;
zephyr,memory-region = "SDRAM2";

4
dts/bindings/memory-controllers/st,stm32-fmc-sdram.yaml
View File

@ -56,13 +56,17 @@ description: |
memory device/s in DeviceTree:
sdram1: sdram@c0000000 {
compatible = "mmio-sram";
device_type = "memory";
reg = <0xc000000 DT_SIZE_M(X)>;
zephyr,memory-region = "SDRAM1";
};
sdram2: sdram@d0000000 {
compatible = "mmio-sram";
device_type = "memory";
reg = <0xd000000 DT_SIZE_M(X)>;
zephyr,memory-region = "SDRAM2";
};
It is important to use sdram1 and sdram2 node labels for bank 1 and bank 2