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-rw-r--r--src/soc/amd/sabrina/Kconfig1
-rw-r--r--src/soc/amd/sabrina/psp_verstage/svc.c9
2 files changed, 8 insertions, 2 deletions
diff --git a/src/soc/amd/sabrina/Kconfig b/src/soc/amd/sabrina/Kconfig
index ed739abcbab9..62ae5989f9d6 100644
--- a/src/soc/amd/sabrina/Kconfig
+++ b/src/soc/amd/sabrina/Kconfig
@@ -45,6 +45,7 @@ config SOC_SPECIFIC_OPTIONS
select PLATFORM_USES_FSP2_0
select PROVIDES_ROM_SHARING
select PSP_SUPPORTS_EFS2_RELATIVE_ADDR if VBOOT_STARTS_BEFORE_BOOTBLOCK
+ # TODO: b/240175446 - Enable PSP DMA after verification
select RESET_VECTOR_IN_RAM
select RTC
select SOC_AMD_COMMON
diff --git a/src/soc/amd/sabrina/psp_verstage/svc.c b/src/soc/amd/sabrina/psp_verstage/svc.c
index 5e26300f5661..ad52b6f39473 100644
--- a/src/soc/amd/sabrina/psp_verstage/svc.c
+++ b/src/soc/amd/sabrina/psp_verstage/svc.c
@@ -174,8 +174,13 @@ uint32_t svc_crypto_sha(struct sha_generic_data *sha_op, enum sha_operation_mode
uint32_t svc_modexp(struct mod_exp_params *mod_exp_param)
{
- /* TODO: b/240175446 Re-enable CCP DMA and svc_modexp later. */
- return 1;
+ uint32_t retval = 0;
+ struct cmd_param_modexp param = {
+ .ptr_modexp = mod_exp_param,
+ };
+ SVC_CALL2(SVC_VERSTAGE_CMD, CMD_MODEXP, (void *)&param, retval);
+ return retval;
+
}
uint32_t svc_ccp_dma(uint32_t spi_rom_offset, void *dest, uint32_t size)