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hw/watchdog: Allwinner WDT emulation for system reset

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This patch adds basic support for Allwinner WDT.
Both sun4i and sun6i variants are supported.
However, interrupt generation is not supported, so WDT can be used only to trigger system reset.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20230326202256.22980-2-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Strahinja Jankovic 2023-04-20 10:21:13 +01:00 • committed by Peter Maydell
parent c47a80cd14
commit 17b9730f98
5 changed files with 551 additions and 0 deletions
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1
hw/watchdog/meson.build
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@ -1,4 +1,5 @@
softmmu_ss.add(files('watchdog.c'))
softmmu_ss.add(when: 'CONFIG_ALLWINNER_WDT', if_true: files('allwinner-wdt.c'))
softmmu_ss.add(when: 'CONFIG_CMSDK_APB_WATCHDOG', if_true: files('cmsdk-apb-watchdog.c'))
softmmu_ss.add(when: 'CONFIG_WDT_IB6300ESB', if_true: files('wdt_i6300esb.c'))
softmmu_ss.add(when: 'CONFIG_WDT_IB700', if_true: files('wdt_ib700.c'))