The current i.MX watchdog implementation only supports resets.
This patch series implements the full watchdog, including optional
pretimeout support.
Notable changes:
- The existing i.MX watchdog emulation (which only emulates syste resets)
is moved from hw/misc to hw/watchdog and renamed to match the naming
convention in hw/watchdog (patch 1/8).
- Full watchdog support is implemented in patch 2/8.
- The watchdog is wired up for i.MX25 and i.MX31 emulations (patch 3/8 and
4/8).
- The watchdog interrupt (for pretimeout support) is connected for
i.MX6, i.MX6UL, and i.MX7 emulations (patch 5/8, 6/8, and 8/8).
- For i.MX7, various devices are wired up as unimplemented
devices (patch 7/8). This was necessary to avoid crashes when
booting recent Linux kernels.
The code was tested with all available emulations.
v2: Select WDT_IMX2 explicitly for supported platforms, not automatically
with IMX
Rebased to current master (as of 3/22)
Fixed typo "octop" -> "ocotp"
Added Reviewed-by: tags where given
----------------------------------------------------------------
Guenter Roeck (8):
hw: Move i.MX watchdog driver to hw/watchdog
hw/watchdog: Implement full i.MX watchdog support
hw/arm/fsl-imx25: Wire up watchdog
hw/arm/fsl-imx31: Wire up watchdog
hw/arm/fsl-imx6: Connect watchdog interrupts
hw/arm/fsl-imx6ul: Connect watchdog interrupts
hw/arm/fsl-imx7: Instantiate various unimplemented devices
hw/arm/fsl-imx7: Connect watchdog interrupts
MAINTAINERS | 2 +
hw/arm/Kconfig | 5 +
hw/arm/fsl-imx25.c | 10 ++
hw/arm/fsl-imx31.c | 6 +
hw/arm/fsl-imx6.c | 9 ++
hw/arm/fsl-imx6ul.c | 10 ++
hw/arm/fsl-imx7.c | 35 ++++++
hw/misc/Makefile.objs | 1 -
hw/misc/imx2_wdt.c | 90 --------------
hw/watchdog/Kconfig | 3 +
hw/watchdog/Makefile.objs | 1 +
hw/watchdog/wdt_imx2.c | 262 +++++++++++++++++++++++++++++++++++++++++
include/hw/arm/fsl-imx25.h | 5 +
include/hw/arm/fsl-imx31.h | 4 +
include/hw/arm/fsl-imx6.h | 2 +-
include/hw/arm/fsl-imx6ul.h | 2 +-
include/hw/arm/fsl-imx7.h | 23 +++-
include/hw/misc/imx2_wdt.h | 33 ------
include/hw/watchdog/wdt_imx2.h | 78 ++++++++++++
19 files changed, 454 insertions(+), 127 deletions(-)
delete mode 100644 hw/misc/imx2_wdt.c
create mode 100644 hw/watchdog/wdt_imx2.c
delete mode 100644 include/hw/misc/imx2_wdt.h
create mode 100644 include/hw/watchdog/wdt_imx2.h
