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The virt ctrl register seems to be native endian, currently this driver
uses writel(), which works by luck because its currently broken on m68k.
Use __raw_writel() instead to avoid breaking this driver when the
endianness of writel() is fixed.
Acked-by: Kuan-Wei Chiu <[email protected]>
Reviewed-by: Angelo Dureghello <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Daniel Palmer <[email protected]>
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In the platform data there is a phys_addr_t (an integer) for the address
of the register and we pass that as-is into writel() which is fine in most
places because we don't need to do any mapping and the macro for writel()
does a cast to a pointer.
If writel() is a static inline function the address argument is a pointer
so passing it in as an integer without casting it first causes warnings or
build failure.
map_sysmem() handles the casting part and if phys_addr_t is 32bits when
on a 64bit machine.
Signed-off-by: Daniel Palmer <[email protected]>
Acked-by: Kuan-Wei Chiu <[email protected]>
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Introduce a new sysreset driver for the QEMU Virtual System Controller.
This device is found on QEMU "virt" machines (such as the m68k virt
target) and provides a mechanism to trigger system reset and power-off
events.
The driver maps U-Boot sysreset types to the corresponding controller
commands:
- SYSRESET_WARM / SYSRESET_COLD -> VIRT_CTRL_CMD_RESET
- SYSRESET_POWER_OFF -> VIRT_CTRL_CMD_HALT
Signed-off-by: Kuan-Wei Chiu <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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