On Sat, 22 Jul 2023 at 22:41, Bin Meng <[email protected]> wrote:
>
> At present the driver uses IO instructions to access the legacy
> VGA IO ports, which unfortunately limits the driver to work only
> on x86. It turns out the IO instruction is not necessary as Bochs
> VGA card remaps the legacy VGA IO ports (0x3c0 -> 0x3df) to its
> memory mapped register space from offset 0x400.
>
> Update the driver to use MMIO access for VGA IO port.
>
> Signed-off-by: Bin Meng <[email protected]>
> ---
>
>  drivers/video/bochs.c | 6 +++---
>  drivers/video/bochs.h | 4 +---
>  2 files changed, 4 insertions(+), 6 deletions(-)
>

Reviewed-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>  # qemu-x86_64

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