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The serial driver regions used by OpenSBI should be marked as a shared
read-write regions between M-mode and SU-mode as those are accessed
by earlycon and the corresponding tty serial drivers running in 'S' mode.
When the smepmp extension is enabled, PMP entries for these shared regions
will get programmed.
Signed-off-by: Mayuresh Chitale <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
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Some of RISC-V emulators provide HTIF at fixed base address so for
such emulators users have to hard-code HTIF base address in the
linker script.
To address this problem, we let users optionally provide fixed HTIF
base address via platform support (or device tree).
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Dong Du <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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Instead of having console_putc() and console_getc() callbacks in
platform operations, it will be much simpler for console driver to
directly register these operations as device to the sbi_console
implementation.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
Reviewed-by: Xiang W <[email protected]>
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We add simple serial framework which will select and use serial driver
based on details in FDT passed by previous booting stage.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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