Greg Ungerer 082f55c459 m68k: fix ColdFire PCI config reads and writes ...

The ColdFire PCI configuration space access functions swap addressing
regions to do their work. Just letting the read/write cycles exit
the CPU core (via the ColdFire "nop" instruction) is not enough to
guarantee that the address region remapping has actually completed.
Insert a read back of the mapping register to be absolutely sure
that the remapping has completed.

This fixes an occasional boot hang during the ColdFire PCI initialization
phase.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Reviewed-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Angelo Dureghello <angelo@sysam.it>

2018-05-28 09:45:27 +10:00

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amcore.c

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cache.c

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clk.c

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device.c

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dma_timer.c

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dma.c

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entry.S

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firebee.c

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gpio.c

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head.S

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intc-2.c

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intc-525x.c

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intc-5249.c

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intc-5272.c

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intc-simr.c

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intc.c

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m53xx.c

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m54xx.c

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m520x.c

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m523x.c

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m525x.c

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m527x.c

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m528x.c

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m5206.c

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m5249.c

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m5272.c

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m5307.c

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m5407.c

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m5441x.c

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Makefile

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mcf8390.c

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nettel.c

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pci.c

m68k: fix ColdFire PCI config reads and writes

2018-05-28 09:45:27 +10:00

pit.c

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reset.c

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sltimers.c

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stmark2.c

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timers.c

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vectors.c

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