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arm: dts: lpc32xx: add external memory controller device node

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The change adds a description of ARM PrimeCell PL175 memory
controller, which is found on NXP LPC32xx SoCs.

The controller supports up to 4 static memory devices mapped to
0xE000 0000 - 0xE3FF FFFF physical memory area.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
This commit is contained in:
Vladimir Zapolskiy 2015-10-18 00:35:55 +03:00
parent cae5949067
commit f83ee67fcf
1 changed files with 15 additions and 1 deletions
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16
arch/arm/boot/dts/lpc32xx.dtsi
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@ -32,7 +32,8 @@
#address-cells = <1>; #address-cells = <1>;
#size-cells = <1>; #size-cells = <1>;
compatible = "simple-bus"; compatible = "simple-bus";
ranges = <0x20000000 0x20000000 0x30000000>; ranges = <0x20000000 0x20000000 0x30000000>,
<0xe0000000 0xe0000000 0x04000000>;
/* /*
* Enable either SLC or MLC * Enable either SLC or MLC
@ -86,6 +87,19 @@
interrupts = <0x1d 0>; interrupts = <0x1d 0>;
}; };
emc: memory-controller@31080000 {
compatible = "arm,pl175", "arm,primecell";
reg = <0x31080000 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0xe0000000 0x01000000>,
<1 0xe1000000 0x01000000>,
<2 0xe2000000 0x01000000>,
<3 0xe3000000 0x01000000>;
status = "disabled";
};
apb { apb {
#address-cells = <1>; #address-cells = <1>;
#size-cells = <1>; #size-cells = <1>;