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Sunchip RK3288 Board (AD-B02-V1.1) #61

Open msmsubair opened 4 years ago

msmsubair commented 4 years ago

can anybody help to make the UART working on this board. the board has UART1, 3 and 4. it doesn't have UART2 which is Rockchip standard. is there any changes required in the uboot to get this UART working ? No Support got from Sunchip folks.

ssekar15 commented 4 years ago

@msmsubair you can change in uart address in defconfig, then enable uart node in dts, change stdout-path in dts choosen node

ssekar15 commented 4 years ago

not sure whether issue raised in github are notified to rockchip, couldn't see any response for the issue so far

msmsubair commented 4 years ago

are you talking about u-boot/arch/arm/dts/rk3288-u-boot.dtsi ? idid try that

};

chosen {
    stdout-path = &uart2;
    u-boot,spl-boot-order = &emmc, &sdmmc;
};

};

&uart2 { clock-frequency = <24000000>; u-boot,dm-pre-reloc; status = "okay"; }; but it didnt help

ssekar15 commented 4 years ago

also in defconfig CONFIG_DEBUG_UART_BASE

msmsubair commented 4 years ago

CONFIG_DEBUG_UART_BASE=0xff690000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_DEBUG_UART_SHIFT=2

msmsubair commented 4 years ago

CONFIG_DEBUG_UART_BASE=0xff690000 to change to desired UART , correct, thank you

msmsubair commented 4 years ago

i tried this and now at least i can see some characters in the console with 115200, see below, any idea why this console not showing properly.

Terminal ready (eey����7%%933�9���������7%%933�3��������������#-#1���;=7�y[y��-#1�753='�5#-!#%5#�����j:����!�15�55�9!#!'�������Q=#��9=#��3-#7�9!##59�7-5��s=-'57�!�3!#7�==-'=;'5�7�!5��m#�����5-='��a����5-='��u����5-='��e!75'��u;�[i������FDKQz��!�=--!#�����ai��%%9��-�95#�75-95��7!A)-%1A5�3!#7�mw{�-#�Yw9=��{!!�3!%�Yw9=��{!!75��%%9�������e/5/!'7�%-9!!'��3=-'57��5������eey���g51=95=7��)5

9�)5'��=%��5#5���������io���;!!�%!75��c!#5��ygi���

                         ��-#-���������io
                                          ��)5'��c�}��뿿=''���������io
                                                                       �뿿7''��������io
                                                                                        �뿿9''��������io
                                                                                                         �뿿1''��������io
�뿿#''�������io
                �뿿=9')A;��������io
                                     ��c5����y���#-#1��5/53�!�!�=!;!!��yW[g�y�������������������^HE����=��=���5/���5/533��������o-�)5
ssekar15 commented 4 years ago

Could be clock or pinmux setting.

  1. try different baudrate in the host putty or minicom if it works, could be clock settings
  2. check the pinmux of uart
msmsubair commented 4 years ago

miqi.dts

/dts-v1/;

include "rk3288-miqi.dtsi"

/ { model = "mqmaker MiQi"; compatible = "mqmaker,miqi", "rockchip,rk3288";

chosen {
    stdout-path = "serial1:115200n8";
};

};

&pinctrl { u-boot,dm-pre-reloc; };

&uart1 { u-boot,dm-pre-reloc; reg-shift = <2>; };

RK3288-dtsi

uart0: serial@ff180000 { compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart"; reg = <0xff180000 0x100>; interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; reg-io-width = <4>; clock-frequency = <24000000>; clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>; clock-names = "baudclk", "apb_pclk"; pinctrl-names = "default"; pinctrl-0 = <&uart0_xfer>; status = "disabled"; };

uart1: serial@ff190000 {
    compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
    reg = <0xff190000 0x100>;
    interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
    reg-shift = <2>;
    reg-io-width = <4>;
    clock-frequency = <24000000>;
    clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
    clock-names = "baudclk", "apb_pclk";
    pinctrl-names = "default";
    pinctrl-0 = <&uart1_xfer>;
    status = "disabled";
};

uart2: serial@ff690000 {
    compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
    reg = <0xff690000 0x100>;
    interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
    reg-shift = <2>;
    reg-io-width = <4>;
    clock-frequency = <24000000>;
    clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
    clock-names = "baudclk", "apb_pclk";
    pinctrl-names = "default";
    pinctrl-0 = <&uart2_xfer>;
    status = "disabled";
};
uart3: serial@ff1b0000 {
    compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
    reg = <0xff1b0000 0x100>;
    interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
    reg-shift = <2>;
    reg-io-width = <4>;
    clock-frequency = <24000000>;
    clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>;
    clock-names = "baudclk", "apb_pclk";
    pinctrl-names = "default";
    pinctrl-0 = <&uart3_xfer>;
    status = "disabled";
};

uart4: serial@ff1c0000 {
    compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
    reg = <0xff1c0000 0x100>;
    interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
    reg-shift = <2>;
    reg-io-width = <4>;
    clock-frequency = <24000000>;
    clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>;
    clock-names = "baudclk", "apb_pclk";
    pinctrl-names = "default";
    pinctrl-0 = <&uart4_xfer>;
    status = "disabled";
};

uart0 { uart0_xfer: uart0-xfer { rockchip,pins = <4 16 RK_FUNC_1 &pcfg_pull_up>, <4 17 RK_FUNC_1 &pcfg_pull_none>; };

        uart0_cts: uart0-cts {
            rockchip,pins = <4 18 RK_FUNC_1 &pcfg_pull_none>;
        };

        uart0_rts: uart0-rts {
            rockchip,pins = <4 19 RK_FUNC_1 &pcfg_pull_none>;
        };
    };

    uart1 {
        uart1_xfer: uart1-xfer {
            rockchip,pins = <5 8 RK_FUNC_1 &pcfg_pull_up>,
                    <5 9 RK_FUNC_1 &pcfg_pull_none>;
        };

        /*uart1_cts: uart1-cts {
            rockchip,pins = <5 10 RK_FUNC_1 &pcfg_pull_none>;
        };

        uart1_rts: uart1-rts {
            rockchip,pins = <5 11 RK_FUNC_1 &pcfg_pull_none>;
        };*/
    };

    uart2 {
        uart2_xfer: uart2-xfer {
            rockchip,pins = <7 22 RK_FUNC_1 &pcfg_pull_up>,
                    <7 23 RK_FUNC_1 &pcfg_pull_none>;
        };
        /* no rts / cts for uart2 */
    };

    uart3 {
        uart3_xfer: uart3-xfer {
            rockchip,pins = <7 7 RK_FUNC_1 &pcfg_pull_up>,
                    <7 8 RK_FUNC_1 &pcfg_pull_none>;
        };

        uart3_cts: uart3-cts {
            rockchip,pins = <7 9 RK_FUNC_1 &pcfg_pull_none>;
        };

        uart3_rts: uart3-rts {
            rockchip,pins = <7 10 RK_FUNC_1 &pcfg_pull_none>;
        };
    };

    uart4 {
        uart4_xfer: uart4-xfer {
            rockchip,pins = <5 12 3 &pcfg_pull_up>,
                    <5 13 3 &pcfg_pull_none>;
        };

        uart4_cts: uart4-cts {
            rockchip,pins = <5 14 3 &pcfg_pull_none>;
        };

        uart4_rts: uart4-rts {
            rockchip,pins = <5 15 3 &pcfg_pull_none>;
        };
    };

RK3288-uboot-dtsi */

/ { aliases { mmc0 = &emmc; mmc1 = &sdmmc; };

chosen {
    stdout-path = &uart1;
    u-boot,spl-boot-order = &emmc, &sdmmc;
};

};

&uart1 { clock-frequency = <24000000>; u-boot,dm-pre-reloc; status = "okay"; };

msmsubair commented 4 years ago

basically all board dtsi file have same config for uart 0-4. the baud rate is alreday set at 115200 i changed to uart1 and 3, both are showing same weird characters.

ssekar15 commented 4 years ago

rts and cts should be disable. I could see that you did it for uart1. rockchip is new for me and I never worked on rk3288, I raised another issue for rk3128 and unfortunately just clicked your issue to see any reply from rockchip :)

ssekar15 commented 4 years ago

I'm bit busy on another work so cannot look into deep atm

msmsubair commented 4 years ago

i was able to configure the UART 4, infact the pin was wrong in uboot, corrected it and now it is booting.

wrong one

uart4 { uart4_xfer: uart4-xfer { rockchip,pins = <5 12 3 &pcfg_pull_up>, <5 13 3 &pcfg_pull_none>;

correct one

uart4 { uart4_xfer: uart4-xfer { rockchip,pins = <5 15 3 &pcfg_pull_up>, <5 14 3 &pcfg_pull_none>;

msmsubair commented 4 years ago

now the next issue board shows starting kernel .............. tried to do the same changes in dts/dtsi files on Kernel. no success