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mcux-sdk: drivers: Add local changes to the CAAM driver 

Move used job descriptors in the CAAM driver from the stack to
noncacheable section.

This change has not been accepted by the SDK team and needs to
be maintained here.

Signed-off-by: David Leach <david.leach@nxp.com>
This commit is contained in:
David Leach 2024-01-31 23:59:52 -06:00 committed by Daniel DeGrasse
parent 61b9528194
commit 9eecadb2ab
1 changed files with 4 additions and 4 deletions
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8
mcux/mcux-sdk/drivers/caam/fsl_caam.c
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@ -221,6 +221,10 @@ static uint32_t s_jrIndex2 = 0; /*!< Current index in the input
static caam_job_ring_interface_t *s_jr3 = NULL; /*!< Pointer to job ring interface 3. */
static uint32_t s_jrIndex3 = 0; /*!< Current index in the input job ring 3. */
AT_NONCACHEABLE_SECTION(static caam_rng_config_t rngConfig);
AT_NONCACHEABLE_SECTION(static caam_desc_rng_t rngGenSeckey);
AT_NONCACHEABLE_SECTION(static caam_desc_rng_t rngInstantiate);
AT_NONCACHEABLE_SECTION(static caam_desc_rng_t descBuf);
/*******************************************************************************
* Code
******************************************************************************/
@ -1842,7 +1846,6 @@ status_t CAAM_Init(CAAM_Type *base, const caam_config_t *config)
* for FIFO STORE command to be able to store Key register as Black key
* for example during AES XCBC-MAC context switch (need to store derived key K1 to memory)
*/
caam_rng_config_t rngConfig;
(void)CAAM_RNG_GetDefaultConfig(&rngConfig);
/* reset RNG */
@ -4444,7 +4447,6 @@ status_t CAAM_RNG_Init(CAAM_Type *base,
status_t status;
/* create job descriptor */
caam_desc_rng_t rngInstantiate = {0};
rngInstantiate[0] = 0xB0800006u;
rngInstantiate[1] = 0x12200020u; /* LOAD 32 bytes of to Class 1 Context Register. Offset 0 bytes. */
rngInstantiate[2] = (uint32_t)ADD_OFFSET((uint32_t)config->personalString);
@ -4540,7 +4542,6 @@ status_t CAAM_RNG_GenerateSecureKey(CAAM_Type *base, caam_handle_t *handle, caam
status_t status;
/* create job descriptor */
caam_desc_rng_t rngGenSeckey = {0};
rngGenSeckey[0] = 0xB0800004u; /* HEADER */
rngGenSeckey[1] = 0x12200020u; /* LOAD 32 bytes of to Class 1 Context Register. Offset 0 bytes. */
rngGenSeckey[2] = ADD_OFFSET((uint32_t)additionalEntropy);
@ -4647,7 +4648,6 @@ status_t CAAM_RNG_GetRandomData(CAAM_Type *base,
caam_rng_generic256_t additionalEntropy)
{
status_t status;
caam_desc_rng_t descBuf;
do
{