Failed to enable MCU_I2C0 in MCU SPL

zhao peichao

Part Number: DRA821U

Hi experts

i want to configure TPS65941 at tiboot3.bin for some reason.the demo board interface is wkup_i2c0,it's ok;

our board interface is mcu_i2c0 ,have my change,it's failed to run.

U-Boot SPL 2020.01-dirty (Jul 28 2021 - 11:26:59 +0800)
SYSFW ABI: 3.1 (firmware rev 0x0015 '21.1.1--v2021.01a (Terrific Lla')
ti_power_domain_probe(dev=41c85db8)
ti_power_domain_of_xlate: invalid dev-id: 194
Trying to boot from MMC1

--- arch/arm/dts/k3-j7200-r5-common-proc-board.dts      (revision 2630)
+++ arch/arm/dts/k3-j7200-r5-common-proc-board.dts      (working copy)
@@ -117,6 +117,13 @@
                >;
        };
 
+       mcu_i2c0_pins_default: mcu_i2c0_pins_default {
+               pinctrl-single,pins = <
+                       J721E_WKUP_IOPAD(0x108, PIN_INPUT_PULLUP, 0) /* (G21) MCU_I2C0_SCL */
+                       J721E_WKUP_IOPAD(0x10c, PIN_INPUT_PULLUP, 0) /* (G20) MCU_I2C0_SDA */
+               >;
+       };
+
        mcu_fss0_hpb0_pins_default: mcu-fss0-hpb0-pins-default {
                pinctrl-single,pins = <
                        J721E_WKUP_IOPAD(0x0, PIN_OUTPUT, 1) /* (E20) MCU_OSPI0_CLK.MCU_HYPERBUS0_CK */
@@ -215,10 +222,10 @@
        ti,driver-strength-ohm = <50>;
 };
 
-&wkup_i2c0 {
+&mcu_i2c0 {
        u-boot,dm-spl;
        pinctrl-names = "default";
-       pinctrl-0 = <&wkup_i2c0_pins_default>;
+       pinctrl-0 = <&mcu_i2c0_pins_default>;
        clock-frequency = <400000>;
 
        tps659413a: tps659413a@48 {

	mcu_i2c0: i2c@40b00000 {
		compatible = "ti,j721e-i2c", "ti,omap4-i2c";
		reg = <0x0 0x40b00000 0x0 0x100>;
		interrupts = <GIC_SPI 852 IRQ_TYPE_LEVEL_HIGH>;
		#address-cells = <1>;
		#size-cells = <0>;
		clock-names = "fck";
		clocks = <&k3_clks 194 1>;
		power-domains = <&k3_pds 194 TI_SCI_PD_EXCLUSIVE>;
	};

the power-domains of MCU_I2C0 don't match in tiboot3.bin: power-domains = <&k3_pds 194 TI_SCI_PD_EXCLUSIVE>;

could you help to solve the issue please?

over 4 years ago

0 Keerthy J over 4 years ago

TI__Guru**** 162340 points

Hi Zhao,

On top of your above changes please add the below change as well:

diff --git a/arch/arm/mach-k3/j7200/dev-data.c b/arch/arm/mach-k3/j7200/dev-data.c
index 9956daa31b..ac630097c4 100644
--- a/arch/arm/mach-k3/j7200/dev-data.c
+++ b/arch/arm/mach-k3/j7200/dev-data.c
@@ -58,6 +58,7 @@ static struct ti_dev soc_dev_list[] = {
        PSC_DEV(104, &soc_lpsc_list[12]),
        PSC_DEV(154, &soc_lpsc_list[12]),
        PSC_DEV(149, &soc_lpsc_list[12]),
+       PSC_DEV(194, &soc_lpsc_list[12]),
        PSC_DEV(113, &soc_lpsc_list[13]),
        PSC_DEV(197, &soc_lpsc_list[13]),
        PSC_DEV(103, &soc_lpsc_list[14]),
@@ -73,6 +74,6 @@ const struct ti_k3_pd_platdata j7200_pd_platdata = {
        .num_psc = 2,
        .num_pd = 6,
        .num_lpsc = 17,
-       .num_devs = 22,
+       .num_devs = 23,
 };

I believe that should solve your issue.

If no other questions please click on verify answer.

- Keerthy

0 zhao peichao over 4 years ago in reply to Keerthy J

Prodigy 65 points

hi Keerthy

thank you for your response. there is new a issue:

U-Boot SPL 2020.01-dirty (Jul 29 2021 - 10:08:59 +0800)
SYSFW ABI: 3.1 (firmware rev 0x0015 '21.1.1--v2021.01a (Terrific Lla')
ti_power_domain_probe(dev=41c85db8)
i2c_write: error waiting for data ACK (status=0x116)
read error from device: 41c865b4 register: x!

+1 Keerthy J over 4 years ago in reply to zhao peichao

TI__Guru**** 162340 points

Hi Zhao,

Now you need to verify if the PMIC slave ID and registers are correct. This is board specific setting.
Is the slave ID of the PMIC on MCU-I2C0 same as the PMIC slave ID in the J7200 EVM.

- Keerthy

+1 zhao peichao over 4 years ago in reply to Keerthy J

Prodigy 65 points

thank you for your response

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Failed to enable MCU_I2C0 in MCU SPL