lkml.org 
[lkml]   [2016]   [Mar]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v7 11/20] ARM: dts: Add DMC bus node for Exynos3250
    Date
    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>
    ---
    arch/arm/boot/dts/exynos3250.dtsi | 34 ++++++++++++++++++++++++++++++++++
    1 file changed, 34 insertions(+)

    diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
    index 137f9015d4e8..1ae72c4fa55e 100644
    --- a/arch/arm/boot/dts/exynos3250.dtsi
    +++ b/arch/arm/boot/dts/exynos3250.dtsi
    @@ -688,6 +688,40 @@
    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>;
    + };
    + };
    };
    };

    --
    1.9.1
    \
     
     \ /
      Last update: 2016-03-31 11:21    [W:3.888 / U:0.060 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site