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LCD 7" with AM335х EVMSK and linux kernel from SDK6.0

Tim Karaldin
Prodigy 250 points

Other Parts Discussed in Thread: DA8XX

Hello, because of problem described in http://e2e.ti.com/support/arm/sitara_arm/f/791/t/353179.aspx I would like to connect LCD 7" touchscreen to AM335х EVMSK with linux from Sitara linux SDK 6.0 rather then SDK 7.0. Actually in SDK 7.0 there is a section with panel timings and resolution in am335-xevmsk.dts board file but in SDK 6.0 I can't found any timings in board-am335xevm.c. Where should I fix it?

  • 0
    TI__Mastermind 25235 points

    Hi Tim,

    These are defined inside <linux_dir>/drivers/video/da8xx-fb.c:

    static struct da8xx_panel known_lcd_panels[] = {
        /* Sharp LCD035Q3DG01 */
        [0] = {
            .name = "Sharp_LCD035Q3DG01",
            .width = 320,
            .height = 240,
            .hfp = 8,
            .hbp = 6,
            .hsw = 0,
            .vfp = 2,
            .vbp = 2,
            .vsw = 0,
            .pxl_clk = 4608000,
            .invert_pxl_clk = 1,
        },
        /* Sharp LK043T1DG01 */
        [1] = {
            .name = "Sharp_LK043T1DG01",
            .width = 480,
            .height = 272,
            .hfp = 2,
            .hbp = 2,
            .hsw = 41,
            .vfp = 3,
            .vbp = 3,
            .vsw = 10,
            .pxl_clk = 7833600,
            .invert_pxl_clk = 0,
        },
        /* ThreeFive S9700RTWV35TR */
        [2] = {
            .name = "TFC_S9700RTWV35TR_01B",
            .width = 800,
            .height = 480,
            .hfp = 39,
            .hbp = 39,
            .hsw = 47,
            .vfp = 13,
            .vbp = 29,
            .vsw = 2,
            .pxl_clk = 30000000,
            .invert_pxl_clk = 0,
        },
        /* Newhaven Display */
        [3] = {
            .name = "NHD-4.3-ATXI#-T-1",
            .width = 480,
            .height = 272,
            .hfp = 8,
            .hbp = 43,
            .hsw = 4,
            .vfp = 4,
            .vbp = 12,
            .vsw = 10,
            .pxl_clk = 9000000,
            .invert_pxl_clk = 0,
        },
    };

    Best regards,
    Miroslav

  • 0
    TI__Expert 3010 points

    Hi Tim,


    Also check out our board port lab for SDK 6.00, which shows how to enable an LCD from scratch: http://processors.wiki.ti.com/index.php/Sitara_Linux_Training:_Linux_Board_Port

    Regards,

    Josh