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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
..
e500-ccsr.h ppc: do not use ../ in include files 2013-03-01 13:57:33 +01:00
e500.c elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
e500.h platform-bus-device: use device plug callback instead of machine_done notifier 2018-05-10 18:10:56 +01:00
e500plat.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
fdt.c target/ppc: Split page size information into a separate allocation 2018-04-27 18:05:22 +10:00
Kconfig ppc: Express dependencies of the embedded machines with kconfig 2019-03-07 21:46:19 +01:00
mac_newworld.c hw/boards: Add a MachineState parameter to kvm_type callback 2019-03-05 15:55:09 +00:00
mac_oldworld.c hw/boards: Add a MachineState parameter to kvm_type callback 2019-03-05 15:55:09 +00:00
mac.h macio: move MACIOIDEState type declarations to macio.h 2018-08-30 10:42:18 +10:00
Makefile.objs hw/ppc/Makefile.objs: Build all boards conditinally with CONFIG_* 2019-02-05 16:50:20 +01:00
mpc8544_guts.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
mpc8544ds.c ppc: e500: switch E500 based machines to full machine definition 2018-04-27 18:05:23 +10:00
pnv_bmc.c Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
pnv_core.c ppc/pnv: introduce a CPU machine_data 2019-02-04 18:44:18 +11:00
pnv_lpc.c ppc/pnv: check size before data buffer access 2018-11-08 12:04:40 +11:00
pnv_occ.c ppc/pnv: Add OCC model stub with interrupt support 2017-04-26 12:00:42 +10:00
pnv_psi.c hw/ppc: Use object_initialize_child for correct reference counting 2019-02-26 09:21:25 +11:00
pnv_xscom.c Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
pnv.c ppc/pnv: use IEC binary prefixes to represent sizes 2019-02-26 14:20:30 +11:00
ppc4xx_devs.c ppc4xx: Pass array index to function instead of pointer into the array 2019-02-04 18:44:17 +11:00
ppc4xx_pci.c ppc4xx_pci: convert SysBus init method to a realize method 2018-11-08 12:04:40 +11:00
ppc405_boards.c ppc405_boards: use g_new(T, n) instead of g_malloc(sizeof(T) * n) 2018-12-21 09:24:23 +11:00
ppc405_uc.c hw/ppc: Move ppc40x_*reset() functions from ppc405_uc.c to ppc.c 2019-02-04 18:44:18 +11:00
ppc405.h ppc4xx: Export ECB and PLB emulation 2017-09-08 09:30:55 +10:00
ppc440_bamboo.c elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
ppc440_pcix.c ppc440_pcix: convert SysBus init method to a realize method 2018-11-08 12:04:40 +11:00
ppc440_uc.c ppc440: Avoid reporting error when reading non-existent RAM slot 2019-02-04 18:44:17 +11:00
ppc440.h ppc440_uc: Basic emulation of PPC440 DMA controller 2018-07-03 09:56:52 +10:00
ppc_booke.c hw/ppc: Don't include m48t59.h if it is not necessary 2019-02-04 18:44:20 +11:00
ppc.c target/ppc: Add POWER9 external interrupt model 2019-02-26 09:21:24 +11:00
ppce500_spin.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
prep_systemio.c prep: add PReP System I/O 2017-01-31 10:10:13 +11:00
prep.c hw/ppc/prep: Drop useless inclusion of "hw/i386/pc.h" 2019-02-17 21:54:02 +11:00
rs6000_mc.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
sam460ex.c sam460ex: Don't size flash memory to match backing image 2019-03-11 22:53:44 +01:00
spapr_caps.c ppc/spapr_caps: Add SPAPR_CAP_NESTED_KVM_HV 2018-11-08 13:08:35 +11:00
spapr_cpu_core.c spapr: move the interrupt presenters under machine_data 2019-02-04 18:44:18 +11:00
spapr_drc.c spapr: add hotplug hooks for PHB hotplug 2019-02-26 09:21:25 +11:00
spapr_events.c spapr_events: add support for phb hotplug events 2019-02-26 09:21:25 +11:00
spapr_hcall.c target/ppc: Rename PATB/PATBE -> PATE 2019-02-26 09:21:25 +11:00
spapr_iommu.c qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
spapr_irq.c spapr_irq: Expose the phandle of the interrupt controller 2019-02-26 09:21:25 +11:00
spapr_ovec.c spapr: support memory unplug for qtest 2019-02-26 09:21:25 +11:00
spapr_pci_vfio.c Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
spapr_pci.c qdev: Let the hotplug_handler_unplug() caller delete the device 2019-03-06 11:51:08 -03:00
spapr_rng.c hw/ppc/spapr_rng: Introduce CONFIG_SPAPR_RNG switch for spapr_rng.c 2018-11-08 12:04:40 +11:00
spapr_rtas_ddw.c spapr-iommu: Always advertise the maximum possible DMA window size 2018-12-21 09:37:38 +11:00
spapr_rtas.c target/ppc/spapr: Set LPCR:HR when using Radix mode 2019-02-26 09:21:25 +11:00
spapr_rtc.c qapi: move RTC_CHANGE to the target schema 2019-02-18 14:44:05 +01:00
spapr_vio.c spapr: Rename xics to intc in interrupt controller agnostic code 2019-02-17 21:54:02 +11:00
spapr.c qdev: Let the hotplug_handler_unplug() caller delete the device 2019-03-06 11:51:08 -03:00
trace-events ppc/spapr: Receive and store device tree blob from SLOF 2019-01-09 09:28:13 +11:00
virtex_ml507.c hw: Remove unused 'hw/devices.h' include 2019-03-07 22:16:11 +01:00