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powerpc/microwatt: Add litesd

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This is the register layout of the litesd peripheral for the fusesoc
based Microwatt SoC.

It requires a description of the system clock, which is hardcoded to
100MHz.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930065012.2860577-1-joel@jms.id.au
This commit is contained in:
Joel Stanley 2022-09-30 16:20:12 +09:30 committed by Michael Ellerman
parent 0b4721815c
commit 5825603f67
1 changed files with 22 additions and 0 deletions
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22
arch/powerpc/boot/dts/microwatt.dts
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@ -21,6 +21,14 @@
reg = <0x00000000 0x00000000 0x00000000 0x10000000>;
};
clocks {
sys_clk: litex_sys_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <100000000>;
};
};
cpus {
#size-cells = <0x00>;
#address-cells = <0x01>;
@ -141,6 +149,20 @@
litex,slot-size = <0x800>;
interrupts = <0x11 0x1>;
};
mmc@8040000 {
compatible = "litex,mmc";
reg = <0x8042800 0x800
0x8041000 0x800
0x8040800 0x800
0x8042000 0x800
0x8041800 0x800>;
reg-names = "phy", "core", "reader", "writer", "irq";
bus-width = <4>;
interrupts = <0x13 1>;
cap-sd-highspeed;
clocks = <&sys_clk>;
};
};
chosen {