diff options
| author | Ninad Palsule <ninad@linux.ibm.com> | 2024-01-26 04:49:47 -0600 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2024-02-01 08:13:30 +0100 |
| commit | ca782334cb821a84d701133a6421516d264cf0d3 (patch) | |
| tree | 536e07ce4586d24e3bafde516666c08a5c8f7458 /include/hw | |
| parent | 99f0c046f46dae7a7ede7d298de429c3596e76e6 (diff) | |
hw/fsi: Introduce IBM's scratchpad device
This is a part of patchset where IBM's Flexible Service Interface is
introduced.
The scratchpad provides a set of non-functional registers. The firmware
is free to use them, hardware does not support any special management
support. The scratchpad registers can be read or written from LBUS
slave. The scratch pad is managed under FSI CFAM state.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Ninad Palsule <ninad@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: - moved object FSIScratchPad under FSICFAMState
- moved FSIScratchPad code under cfam.c ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/fsi/lbus.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/hw/fsi/lbus.h b/include/hw/fsi/lbus.h index e8a22e22a8..558268c013 100644 --- a/include/hw/fsi/lbus.h +++ b/include/hw/fsi/lbus.h @@ -29,4 +29,15 @@ typedef struct FSILBus { MemoryRegion mr; } FSILBus; +#define TYPE_FSI_SCRATCHPAD "fsi.scratchpad" +#define SCRATCHPAD(obj) OBJECT_CHECK(FSIScratchPad, (obj), TYPE_FSI_SCRATCHPAD) + +#define FSI_SCRATCHPAD_NR_REGS 4 + +typedef struct FSIScratchPad { + FSILBusDevice parent; + + uint32_t regs[FSI_SCRATCHPAD_NR_REGS]; +} FSIScratchPad; + #endif /* FSI_LBUS_H */ |