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MA-13936 Add CAAM self test 

Add CAAM RNG generating and BLOB encap/decap
self test cases.

Test: Test cases pass on imx8qm_mek/imx6qp_sabresd.

Change-Id: I538f7b1581b36df83a3006ac133ca9e7b57ab4f0
Signed-off-by: Ji Luo <ji.luo@nxp.com>
This commit is contained in:
Ji Luo 2019-01-11 09:01:37 +08:00
parent d520e1c606
commit 2a7d6b51d7
2 changed files with 53 additions and 2 deletions
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3
drivers/crypto/Kconfig
View File

@ -1,5 +1,8 @@
menu "Hardware crypto devices"
config CAAM_KB_SELF_TEST
bool "Freescale CAAM SELF TEST"
source drivers/crypto/fsl/Kconfig
endmenu

52
drivers/crypto/fsl_caam.c
View File

@ -49,6 +49,7 @@ static void caam_clock_enable(void);
static int do_cfg_jrqueue(void);
static int do_job(u32 *desc);
static int jr_reset(void);
static void caam_test(void);
/*
* Structures
@ -226,12 +227,12 @@ u32 caam_hwrng(u8 *output_ptr, u32 output_len)
((uintptr_t)hwrng_desc & ALIGN_MASK)
+ ROUND(DESC_MAX_SIZE, ARCH_DMA_MINALIGN));
ret = do_job(hwrng_desc);
flush_dcache_range((uintptr_t)output & ALIGN_MASK,
((uintptr_t)output & ALIGN_MASK)
+ ROUND(2 * output_len, ARCH_DMA_MINALIGN));
ret = do_job(hwrng_desc);
if (ret != SUCCESS) {
printf("Error: RNG generate failed 0x%x\n", ret);
}
@ -276,6 +277,10 @@ void caam_open(void)
}
rng_init();
#ifdef CONFIG_CAAM_KB_SELF_TEST
caam_test();
#endif
}
static void caam_clock_enable(void)
@ -749,3 +754,46 @@ static void rng_init(void)
return;
}
static void caam_hwrng_test(void)
{
ALLOC_CACHE_ALIGN_BUFFER(uint8_t, out1, 32);
ALLOC_CACHE_ALIGN_BUFFER(uint8_t, out2, 32);
memset(out1, 0x00, sizeof(out1));
memset(out2, 0x00, sizeof(out2));
caam_hwrng(out1, sizeof(out1));
caam_hwrng(out2, sizeof(out2));
if (memcmp(out1, out2, sizeof(out1)))
printf("caam hwrng test pass!\n");
else
printf("caam hwrng test fail!\n");
}
static void caam_blob_test(void)
{
ALLOC_CACHE_ALIGN_BUFFER(uint8_t, plain, 32);
ALLOC_CACHE_ALIGN_BUFFER(uint8_t, blob, 128);
ALLOC_CACHE_ALIGN_BUFFER(uint8_t, plain_bak, 32);
memset(plain, 0x00, sizeof(plain));
memset(plain_bak, 0xff, sizeof(plain_bak));
/* encapsulate blob */
caam_gen_blob((ulong)plain, (ulong)blob, sizeof(plain));
/* decapsulate blob */
caam_decap_blob((ulong)plain_bak, (ulong)blob, sizeof(plain_bak));
if (memcmp(plain, plain_bak, sizeof(plain)))
printf("caam blob test fail!\n");
else
printf("caam blob test pass!\n");
}
static void caam_test(void)
{
caam_hwrng_test();
caam_blob_test();
}