Trying to boot pandaboard w/ linaro-2.6.39 kernel hangs in early boot. Enabling EARLY_PRINTK showed the hang happening after:

[ 0.420776] print_constraints: dummy: [ 0.425170] NET: Registered protocol family 16 [ 0.430206] GPMC revision 6.0 [ 0.437591] OMAP GPIO hardware version 0.1 [ 0.442474] OMAP GPIO hardware version 0.1 [ 0.446807] omap_device: omap_gpio.2: new worst case activate latency 0: 3057 [ 0.454833] OMAP GPIO hardware version 0.1 [ 0.459686] OMAP GPIO hardware version 0.1 [ 0.464569] OMAP GPIO hardware version 0.1 [ 0.469390] OMAP GPIO hardware version 0.1 [ 0.476440] omap_mux_init: Add partition: #1: core, flags: 2 [ 0.483764] omap_mux_init: Add partition: #2: wkup, flags: 2 [ 0.489807] error setting wl12xx data [ 0.496032] omap_device: omap_uart.0: new worst case deactivate latency 0: 37 [ 0.504150] omap_device: omap_uart.1: new worst case activate latency 0: 3057 [ 0.517211] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers. [ 0.524322] hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-st. [ 0.531951] hw-breakpoint: maximum watchpoint size is 4 bytes.

I bisected the issue down to: arm: omap4: support pmu - 4fefbe94a77c3d3b5e75d386628c36298c72c57f

However, after reverting that patch against linaro-2.6.39, it then hangs a bit later after:

[ 2.630554] omapdss HDMI: cannot lock PLL [ 2.630554] omapdss HDMI: CFG1 0xc00 [ 2.630554] omapdss HDMI: CFG2 0x2004 [ 2.630584] omapdss HDMI: CFG4 0x23955 [ 2.630584] omapdss HDMI error: failed to power on device [ 2.630645] omapdss error: failed to power on [ 2.630645] omapfb omapfb: Failed to enable display 'hdmi' [ 2.630645] omapfb omapfb: failed to initialize default display [ 2.632202] omapfb omapfb: failed to setup omapfb [ 2.632232] omapfb: probe of omapfb failed with error -5 [ 2.632720] regulator_init_complete: CLK32KG: incomplete constraints, leavinn [ 2.632873] regulator_init_complete: VAUX3_6030: incomplete constraints, lean [ 2.633056] regulator_init_complete: VAUX2_6030: incomplete constraints, lean [ 2.633209] regulator_init_complete: VDAC: incomplete constraints, leaving on [ 2.633392] regulator_init_complete: VCXIO: incomplete constraints, leaving n [ 2.633544] regulator_init_complete: VANA: incomplete constraints, leaving on [ 2.633697] regulator_init_complete: VPP: incomplete constraints, leaving on [ 2.633880] regulator_init_complete: VUSB: incomplete constraints, leaving on

Any clues? Anyone else have much success with panda + current linaro-2.6.39?

thanks -john