RE: Using McBSP in kernel...

[Matthew Percival <matthew@capgo.com>]

G'Day,

	I am still unsuccessful at using McBSP2 as an SPI Master in a kernel
driver.  I have confirmed that the mux settings are correct, and have
attempted using a pull up (though have noted no change).

	An interesting occurrence I have observed in my testing is that if I
test that XRDY is set, indicating that I can load DXR2/1, load the
transmit registers, then check again, XRDY is still set afterwards, and
both registers still reflect the values I put in them earlier.  Clearly
the module is not attempting to transmit, which would explain why I see
nothing with the CRO.

	Looking over the diagrams in spru762, I came across something
interesting.  I understand that, for an SPI Master, FSXM should be set
to 1, yet Figure 4 suggests that MCBSP2.FSX will only come out if FSXM
is set to 0.  Am I mistaken in this, is the diagram wrong, or perhaps is
McBSP2 unsuitable for use as a SPI Master (or at least in the way I have
configured it)?

	Thanks,

	Matthew

PS I shall include a current register dump, in case this is of use:
		DRR2:  0x0000
		DRR1:  0x0000
		DXR2:  0x0000
		DXR1:  0x0000
		SPCR2: 0x00C3
		SPCR1: 0x1001
		RCR2:  0x0001
		RCR1:  0x00A0
		XCR2:  0x0001
		XCR1:  0x00A0
		SRGR2: 0x2000
		SRGR1: 0x1F00
		PCR0:  0x0A0B