Promwad-ThinClient - can't boot 6.11 kernel

MM & cmp18,

Thanks for the log.

Yes, the i2c pinctrl error need to be fixed before we can see the hub spins up or not!

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bodhi, cmp18


6282 has two i2c buses, may be 64 is valid addres for second?

http://lists.infradead.org/pipermail/linux-arm-kernel/2013-January/145043.html

...

from kirkwood-6282.dtsi:

/*
			 * Default I2C1 pinctrl setting on mpp36/mpp37,
			 * overwrite marvell,pins on board level if required.
			 */
			pmx_twsi1: pmx-twsi1 {
				marvell,pins = "mpp36", "mpp37";
				marvell,function = "twsi1";
			};

in the 6282 dtsi i2c1 is defined, not i2c0

MM,

> in the 6282 dtsi i2c1 is defined, not i2c0

i2c0 is defined in kirkwood.dtsi. Look at the include chain. Usually, a board uses i2c0, unless it is more complex and needs i2c1.

People have seen 64 as the 2nd address, but nobody has bothered trying to figure out whether it is i2c1. The guess is it is for debugging purpose.

===
edit: typos

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Edited 1 time(s). Last edit at 01/02/2025 02:56PM by bodhi.

Here is another version for the DTB.

In retrospect, using the OpenBlocks A7 board DTS as a base was my mistake. By now, I've realized that it has almost nothing in common with the PrompWad.

We'll need to strip out more nodes from this DTS. But for now, it is to solve the USB problem first so I let it stay the way it is, unless there is a conflict.

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bodhi,

cool,

pin8 and pin9 (twsi0) was busy by uart1

Thanks!

====
edit: i reread pin functions and dts)



Edited 1 time(s). Last edit at 01/02/2025 11:56PM by MM.

bodhi,

log with new DTB

the new box seems to have problems(

log from the old one

MM,

The patch linux-3.1.1_r1416.patch is quite confusing. I think the patch is wrong.

i2c0 is for the Audio device.

+static struct i2c_board_info i2c0_board_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("alc5621", 0x1a),
+		.platform_data = &alc5621_data,
+	},
+};

But the USB hub is on i2c1 only and if it is not Thin Client.

+#ifdef CONFIG_WTPLUG_THINCLIENT
+static struct alc5623_platform_data alc5621_data = {
+	.add_ctrl = 0x3700,
+	.jack_det_ctrl = 0x4980,
+};
+
+static struct i2c_board_info i2c0_board_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("alc5621", 0x1a),
+		.platform_data = &alc5621_data,
+	},
+};
+
+#else
+
+static struct i2c_board_info i2c1_board_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("usb2514", 0x2c),
+	},
+};
+
+#endif

+#ifndef CONFIG_WTPLUG_THINCLIENT
+	platform_device_register(&wtplug_leds);
+	/* set poweroff function */
+	pm_power_off = wtplug_poweroff;
+	
+#if defined(CONFIG_USB_251XHUB)
+	usb2514_hub_to_smbus();
+#endif
+	i2c_register_board_info(1, i2c1_board_info,
+			ARRAY_SIZE(i2c1_board_info));
+#endif
+#ifdef CONFIG_WTPLUG_THINCLIENT
+	i2c_register_board_info(0, i2c0_board_info,
+		ARRAY_SIZE(i2c0_board_info));
+	kirkwood_audio_init();
+#endif

Could you try

i2c probe 0
i2c probe 1

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Edited 1 time(s). Last edit at 01/09/2025 10:35PM by bodhi.

bodhi,

u-boot i2c probe:

Marvell>> i2c probe
Valid chip addresses: 1A 64
Marvell>> i2c probe 0
Valid chip addresses: 1A 64
Marvell>> i2c probe 1
Valid chip addresses: 1A 64
Marvell>>