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| author | Guenter Roeck <linux@roeck-us.net> | 2020-01-23 15:22:42 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-01-23 16:34:15 +0000 |
| commit | 3c77412b4a5e144bebf06cc668dc4b35b59b4607 (patch) | |
| tree | 01ec1f7d4bf5c7e1c1106e9e021ec590dbb50e08 /docs/devel/secure-coding-practices.rst | |
| parent | 3a5d3a6f58ddd4027b9bcf6fe58f2a0224712c07 (diff) | |
| download | focaccia-qemu-3c77412b4a5e144bebf06cc668dc4b35b59b4607.tar.gz focaccia-qemu-3c77412b4a5e144bebf06cc668dc4b35b59b4607.zip | |
hw/char/exynos4210_uart: Add receive DMA support
To support receive DMA, we need to inform the DMA controller if receive data is available. Otherwise the DMA controller keeps requesting data, causing receive errors. Implement this using an interrupt line. The instantiating code then needs to connect the interrupt with the matching DMA controller GPIO pin. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Message-id: 20200123052540.6132-8-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs/devel/secure-coding-practices.rst')
0 files changed, 0 insertions, 0 deletions