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Markus Armbruster f30bc99559 sam460ex: Don't size flash memory to match backing image 
Machine "sam460ex" maps its flash memory at address 0xFFF00000.  When
no image is supplied, its size is 1MiB (0x100000), and 512KiB of ROM
get mapped on top of its second half.  Else, it's the size of the
image rounded up to the next multiple of 64KiB.

The rounding is actually useless: pflash_cfi01_realize() fails with
"failed to read the initial flash content" unless it's a no-op.

I have no idea what happens when the pflash's size exceeds 1MiB.
Useful outcomes seem unlikely.

I guess memory at the end of the address space remains unmapped when
it's smaller than 1MiB.  Again, useful outcomes seem unlikely.

The physical hardware appears to have 512KiB of flash memory:
https://eu.mouser.com/datasheet/2/268/atmel_AT49BV040B-1180330.pdf

For now, just set the flash memory size to 1MiB regardless of image
size, and document the mess.

Cc: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190308094610.21210-7-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 		2019-03-11 22:53:44 +01:00
..
9pfs virtio: express virtio dependencies with Kconfig 2019-03-07 21:45:53 +01:00
acpi i386-softmmu.mak: remove all CONFIG_* except boards definitions 2019-03-07 21:45:53 +01:00
adc kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
alpha - qtest fixes 2019-03-08 16:31:34 +00:00
arm hw: Use PFLASH_CFI0{1,2} and TYPE_PFLASH_CFI0{1,2} 2019-03-11 22:53:44 +01:00
audio i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
block hw: Use PFLASH_CFI0{1,2} and TYPE_PFLASH_CFI0{1,2} 2019-03-11 22:53:44 +01:00
bt kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
char virtio: express virtio dependencies with Kconfig 2019-03-07 21:45:53 +01:00
core kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
cpu kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
cris cris-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
display hw/display: Add basic ATI VGA emulation 2019-03-11 08:04:55 +01:00
dma isa: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
gpio i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
hppa - qtest fixes 2019-03-08 16:31:34 +00:00
hyperv hyperv: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
i2c display: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
i386 pflash: Rename pflash_t to PFlashCFI01, PFlashCFI02 2019-03-11 22:53:44 +01:00
ide isa: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
input virtio: express virtio dependencies with Kconfig 2019-03-07 21:45:53 +01:00
intc - qtest fixes 2019-03-08 16:31:34 +00:00
ipack build: convert pci.mak to Kconfig 2019-03-07 21:45:53 +01:00
ipmi ipmi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
isa isa: express SuperIO dependencies with Kconfig 2019-03-07 21:45:53 +01:00
lm32 - qtest fixes 2019-03-08 16:31:34 +00:00
m68k m68k-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
mem ppc64: Express dependencies of 'pseries' and 'powernv' machines with kconfig 2019-03-07 21:45:53 +01:00
microblaze - qtest fixes 2019-03-08 16:31:34 +00:00
mips pflash: Rename pflash_t to PFlashCFI01, PFlashCFI02 2019-03-11 22:53:44 +01:00
misc sparc-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
moxie moxie-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
net - qtest fixes 2019-03-08 16:31:34 +00:00
nios2 nios2-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
nvram i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
openrisc or1k-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
pci build: convert pci.mak to Kconfig 2019-03-07 21:45:53 +01:00
pci-bridge i386-softmmu.mak: remove all CONFIG_* except boards definitions 2019-03-07 21:45:53 +01:00
pci-host ppc: Express dependencies of the Mac machines with kconfig 2019-03-07 21:46:19 +01:00
pcmcia kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
ppc sam460ex: Don't size flash memory to match backing image 2019-03-11 22:53:44 +01:00
rdma hw/rdma: modify struct initialization 2019-01-19 11:01:33 +02:00
riscv riscv/Kconfig: enable PCI_DEVICES 2019-03-11 16:33:49 +01:00
s390x s390x: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
scsi lsi: 810/895A are always little endian 2019-03-11 16:33:49 +01:00
sd sd: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
sh4 - qtest fixes 2019-03-08 16:31:34 +00:00
smbios kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
sparc sparc-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
sparc64 sparc64-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
ssi ssi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
timer i386-softmmu.mak: remove all CONFIG_* except boards definitions 2019-03-07 21:45:53 +01:00
tpm tpm: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
tricore - qtest fixes 2019-03-08 16:31:34 +00:00
unicore32 unicore32-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
usb - qtest fixes 2019-03-08 16:31:34 +00:00
vfio vfio-pci: enable by default 2019-03-11 14:45:10 +01:00
virtio virtio: add class_size to VirtioPCIDeviceTypeInfo 2019-03-11 08:04:12 +01:00
watchdog ptimer: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
xen xen: fix xen-bus state model to allow frontend re-connection 2019-02-04 11:04:49 +00:00
xenpv xen: Replace few mentions of xend by libxl 2019-01-14 13:45:40 +00:00
xtensa hw: Use PFLASH_CFI0{1,2} and TYPE_PFLASH_CFI0{1,2} 2019-03-11 22:53:44 +01:00
Kconfig ptimer: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
Makefile.objs i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00