Hi Platon,
Just another question. I've used the rta code to generate a sha256 job descriptor:
int sec_sha256(uint64_t mesg, uint64_t dest, uint32_t mesg_length, uint32_t *buff)
{
struct program prg;
struct program *p = &prg;
PROGRAM_CNTXT_INIT(p, buff, 0);
PROGRAM_SET_36BIT_ADDR(p);
JOB_HDR(p, SHR_NEVER, 0, 0, 0);
{
ALG_OPERATION(p, OP_ALG_ALGSEL_SHA256, OP_ALG_AAI_HASH, OP_ALG_AS_INITFINAL, ICV_CHECK_DISABLE, DIR_ENC);
FIFOLOAD(p, MSG2, mesg, mesg_length, LAST2 | EXT);
STORE(p, CONTEXT2, 0, dest, 32, 0);
}
return PROGRAM_FINALIZE(p);
}
Which generates:
Job Descriptor
B0800009
8443000D
24540000
00000000
00040000
000001C0
54200020
00000000
00030000
Now I'm having trouble submitting the descriptor to the SEC engine, I'm a bit confused about the register configuration.
Here's what I've made so far:
void submit_job(uint32_t in_buff, uint32_t out_buff, int size)
{
WRITE_REG(MCFGR, 0x121f1);
WRITE_REG(IRSR_JR0, 2 * size);
WRITE_REG(ORSR_JR0, 2 * size);
WRITE_REG(IRBAR_JR0, 0);
WRITE_REG((IRBAR_JR0 + 4), in_buff);
WRITE_REG(ORBAR_JR0, 0);
WRITE_REG((ORBAR_JR0 + 4), out_buff);
WRITE_REG(IRJAR_JR0, size);
}
in_buff is the address of the job descriptor, out_buff is some other address and size is the size of the descriptor. The output status is "Error reading descriptor" and the error source is the job ring.
If you or anyone can help me with this, I would be very grateful.
Best regards,
Andrew
