mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 09:15:42 +07:00
f98b4f98bb
Add binding documentation for mmc host controllers present on TI's AM654 SOCs. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
Device Tree Bindings for the SDHCI Controllers present on TI's AM654 SOCs
|
|
|
|
The bindings follow the mmc[1], clock[2] and interrupt[3] bindings.
|
|
Only deviations are documented here.
|
|
|
|
[1] Documentation/devicetree/bindings/mmc/mmc.txt
|
|
[2] Documentation/devicetree/bindings/clock/clock-bindings.txt
|
|
[3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
|
|
|
|
Required Properties:
|
|
- compatible: should be "ti,am654-sdhci-5.1"
|
|
- reg: Must be two entries.
|
|
- The first should be the sdhci register space
|
|
- The second should the subsystem/phy register space
|
|
- clocks: Handles to the clock inputs.
|
|
- clock-names: Tuple including "clk_xin" and "clk_ahb"
|
|
- interrupts: Interrupt specifiers
|
|
- ti,otap-del-sel: Output Tap Delay select
|
|
- ti,trm-icp: DLL trim select
|
|
- ti,driver-strength-ohm: driver strength in ohms.
|
|
Valid values are 33, 40, 50, 66 and 100 ohms.
|
|
|
|
Example:
|
|
|
|
sdhci0: sdhci@4f80000 {
|
|
compatible = "ti,am654-sdhci-5.1";
|
|
reg = <0x0 0x4f80000 0x0 0x260>, <0x0 0x4f90000 0x0 0x134>;
|
|
power-domains = <&k3_pds 47>;
|
|
clocks = <&k3_clks 47 0>, <&k3_clks 47 1>;
|
|
clock-names = "clk_ahb", "clk_xin";
|
|
interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
|
|
sdhci-caps-mask = <0x80000007 0x0>;
|
|
mmc-ddr-1_8v;
|
|
ti,otap-del-sel = <0x2>;
|
|
ti,trm-icp = <0x8>;
|
|
};
|