AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/m68k/coldfire
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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
..
amcore.c m68k: add Sysam AMCORE open board support 2016-12-05 08:53:27 +10:00
cache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
clk.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
device.c m68k: set dma and coherent masks for platform FEC ethernets 2018-03-28 22:27:09 +10:00
dma_timer.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dma.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
entry.S m68k: fix crufty ColdFire intro comments 2014-09-29 09:18:34 +10:00
firebee.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gpio.c m68k/gpio: remove arch specific sysfs bus device 2016-04-11 12:03:18 +10:00
head.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intc-2.c
intc-525x.c
intc-5249.c
intc-5272.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
intc-simr.c m68k: coldfire: move inline before return type 2017-07-12 16:26:04 -07:00
intc.c
m53xx.c m68knommu: platform support for i2c devices on ColdFire SoC 2016-12-05 08:53:27 +10:00
m54xx.c m68k: move coldfire MMU initialization code 2017-11-06 08:25:20 +10:00
m520x.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m523x.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m525x.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m527x.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m528x.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5206.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5249.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5272.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5307.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5407.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
m5441x.c m68k: coldfire: add dspi0 module support 2017-11-07 13:27:32 +10:00
Makefile m68k: add Sysam stmark2 open board support 2017-11-07 13:27:38 +10:00
mcf8390.c
nettel.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci.c m68k: fix ColdFire PCI config reads and writes 2018-05-28 09:45:27 +10:00
pit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
reset.c
sltimers.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stmark2.c m68k: add Sysam stmark2 open board support 2017-11-07 13:27:38 +10:00
timers.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vectors.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00