import new opcode: jumpc, jump, loadc

[vjardin]

The main work was done by Rabeeh from:
https://github.com/SolidRun/lx2160a_build/blob/develop-ls-6.6.52-2.2.0/patches/rcw/0002-add-loadc-jumpc-and-jump-to-pbi-instructions.patch

Let's add some hints and typo fix for the disassemble case with a 2nd commit.

TODO: Based on some new use cases, some opcodes from the "Table 27. PBI Command Summary" of LX2160ARM.pdf could be added.

Table 27. PBI Command Summary

Block Copy Commands

Command	Number	Size (bytes)	Description
Block Copy	0x00	16	Copy data from any of the available memory interfaces to a RAM
CCSR Write from Address	0x02	-	Update large number of CCSR registers consecutively from OCRAM, SPRAM

Special Load Commands

Command	Number	Size (bytes)	Description
Load RCW with Checksum	0x10	136	Read Reset Configuration Word, perform simple 32-bit checksum, and update RCW registers
Load RCW w/o Checksum	0x11	136	Read Reset Configuration Word and update RCW registers without checksum
Load Alternate Configuration Window	0x12	4	Read in condition 14-bit base pointer for alternate configuration space
Load Condition	0x14	12	Read in condition information for subsequent Conditional Jump
Load Security Header	0x20	84	Read CSF Header for authentication of PBI Image
Load Boot 1 CSF Header Ptr	0x22	8	Read in a pointer to CSF header for authentication of Boot 1 code
CCSR Read, Modify and Write	0x42	-	Reads a CCSR register and changes (SET/CLEAR) its bits as per mask

Control Commands

Command	Number	Size (bytes)	Description
Poll Short	0x80	16	Poll a specified address for a specified value
Poll Long	0x81	-	Poll a specified address for a specified value
Wait	0x82	4	Pause PBI sequence for specified number of iterations of a FOR loop
Jump	0x84	8	Unconditional jump forward in PBI command sequence
Jump Conditional	0x85	12	Conditional jump forward in PBI boot sequence
CRC and Stop	0x8F	8	Stop the PBI sequence and indicate the expected CRC value
Stop	0xFF	8	Stop the PBI sequence

[IoanaCiornei]

@vjardin, thanks for the PR!

Is there any use case that you want to accomplish using these new commands? Are you planning to submit any other patch which uses these new instructions?

Also, would you mind adding the disassemble portion for jump and jumpc and not just the hints?

Thanks!

[vladimiroltean]

Hi Vincent,
Please keep the original Author: information to Rabeeh where applicable.