u-boot.git/cmd/riscv, branch master

cmd/exception: support ebreak exception on RISC-V

2021-05-05T08:13:12+00:00

The ebreak instruction should generate a breakpoint exception.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Bin Meng 
Reviewed-by: Rick Chen

cmd/riscv/sbi: support System Reset Extension

2021-02-25T10:06:08+00:00

Let the sbi command detect the 'System Reset Extension'
(EID #0x53525354 "SRST").

Cf. https://github.com/riscv/riscv-sbi-doc

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Pragnesh Patel 
Reviewed-by: Leo Liang 
Reviewed-by: Bin Meng

cmd: add more implementation IDs to sbi command

2021-01-29T15:36:49+00:00

Additional SBI implementation IDs have been added to the upcoming
next version of the SBI specification.

https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc

Signed-off-by: Heinrich Schuchardt

cmd: provide command sbi

2020-08-25T01:34:47+00:00

Provide a command to display information about the SBI implementation.

The output might look like:

=> sbi
SBI 0.2
OpenSBI
Extensions:
  sbi_set_timer
  sbi_console_putchar
  sbi_console_getchar
  sbi_clear_ipi
  sbi_send_ipi
  sbi_remote_fence_i
  sbi_remote_sfence_vma
  sbi_remote_sfence_vma_asid
  sbi_shutdown
  SBI Base Functionality
  Timer Extension
  IPI Extension
  RFENCE Extension
  Hart State Management Extension

The command can be used to construct a unit test checking that the
communication with the SEE is working.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Atish Patra 
Reviewed-by: Bin Meng 
Tested-by: Bin Meng 
Reviewed-by: Pragnesh Patel 
Tested-by:  Pragnesh Patel 
Reviewed-by: Rick Chen 
Tested-by: Rick Chen

cmd: exception: unaligned data access on RISC-V

2020-08-14T06:39:34+00:00

The command 'exception' can be used to test the handling of exceptions.

Currently the exception command only allows to create an illegal
instruction exception on RISC-V.

Provide a sub-command 'exception unaligned' to cause a misaligned load
address exception.

Adjust the online help for 'exception undefined'.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Rick Chen

command: Remove the cmd_tbl_t typedef

2020-05-18T22:36:55+00:00

We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.

Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.

This requires quite a few header-file additions.

Signed-off-by: Simon Glass

cmd: add exception command

2019-04-22T16:06:39+00:00

The 'exception' command allows to test exception handling.

This implementation supports ARM, x86, RISC-V and the following exceptions:
* 'breakpoint' - prefetch abort exception (ARM 32bit only)
* 'unaligned'  - data abort exception (ARM only)
* 'undefined'  - undefined instruction exception

Signed-off-by: Heinrich Schuchardt