opensbi.git/lib/utils/serial/fdt_serial_htif.c, branch v1.4

lib: utils/serial: Add shared regions for serial drivers

2023-09-24T11:34:41Z

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 Signed-off-by: Anup Patel

lib: utils/sys: Extend HTIF library to allow custom base address

2022-01-11T12:47:49Z

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 Reviewed-by: Dong Du Reviewed-by: Atish Patra

lib: sbi: Simplify console platform operations

2021-04-28T11:28:23Z

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 Reviewed-by: Alistair Francis Reviewed-by: Xiang W

lib: utils: Add simple FDT serial framework

2020-05-01T04:32:39Z

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 Reviewed-by: Atish Patra