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| author | Cédric Le Goater <clg@kaod.org> | 2019-01-29 11:46:05 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-01-29 11:46:05 +0000 |
| commit | f95c4bffdc4c53b29f89762cab4adc5a43f95daf (patch) | |
| tree | 9adeee6804f0e7b836a8d22908893d46024e04ad /include | |
| parent | 9149af2a2d3609507959bb17b74a35c3cebc5f66 (diff) | |
| download | qemu-f95c4bffdc4c53b29f89762cab4adc5a43f95daf.zip qemu-f95c4bffdc4c53b29f89762cab4adc5a43f95daf.tar.gz qemu-f95c4bffdc4c53b29f89762cab4adc5a43f95daf.tar.bz2 | |
aspeed/smc: snoop SPI transfers to fake dummy cycles
The m25p80 models dummy cycles using byte transfers. This works well
when the transfers are initiated by the QEMU model of a SPI controller
but when these are initiated by the OS, it breaks emulation.
Snoop the SPI transfer to catch commands requiring dummy cycles and
replace them with byte transfers compatible with the m25p80 model.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20190124140519.13838-5-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ssi/aspeed_smc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/ssi/aspeed_smc.h b/include/hw/ssi/aspeed_smc.h index 1f55731..3b1e7fc 100644 --- a/include/hw/ssi/aspeed_smc.h +++ b/include/hw/ssi/aspeed_smc.h @@ -98,6 +98,9 @@ typedef struct AspeedSMCState { uint8_t conf_enable_w0; AspeedSMCFlash *flashes; + + uint8_t snoop_index; + uint8_t snoop_dummies; } AspeedSMCState; #endif /* ASPEED_SMC_H */ |