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ARM: dts: exynos: Add DMC bus node for Exynos3250 

This patch adds the DMC (Dynamic Memory Controller) bus node for Exynos3250 SoC.
The DMC is an AMBA AXI-compliant slave to interface external JEDEC standard
SDRAM devices. The bus includes the OPP tables and the source clock for DMC
block.

Following list specifies the detailed relation between the clock and DMC block:
- The source clock of DMC block : div_dmc

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
This commit is contained in:
Chanwoo Choi 2016-04-11 12:57:49 +09:00 committed by Krzysztof Kozlowski
parent 483997a761
commit 6b088a62eb
1 changed files with 34 additions and 0 deletions
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34
arch/arm/boot/dts/exynos3250.dtsi
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@ -688,6 +688,40 @@ ppmu_mfc: ppmu_mfc@13660000 {
clock-names = "ppmu";
status = "disabled";
};
bus_dmc: bus_dmc {
compatible = "samsung,exynos-bus";
clocks = <&cmu_dmc CLK_DIV_DMC>;
clock-names = "bus";
operating-points-v2 = <&bus_dmc_opp_table>;
status = "disabled";
};
bus_dmc_opp_table: opp_table1 {
compatible = "operating-points-v2";
opp-shared;
opp@50000000 {
opp-hz = /bits/ 64 <50000000>;
opp-microvolt = <800000>;
};
opp@100000000 {
opp-hz = /bits/ 64 <100000000>;
opp-microvolt = <800000>;
};
opp@134000000 {
opp-hz = /bits/ 64 <134000000>;
opp-microvolt = <800000>;
};
opp@200000000 {
opp-hz = /bits/ 64 <200000000>;
opp-microvolt = <825000>;
};
opp@400000000 {
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <875000>;
};
};
};
};