M2354: Support TRNG as entropy source on TF-M

1.  Update TF-M Secure bin enabling TRNG as entropy source
2.  Replaced with above, remove TRNG HAL stuff on Mbed, including platform extra secure functions, cmake, etc.

Author: ccli8

targets/TARGET_NUVOTON/TARGET_M2354/CMakeLists.txt

@@ -72,7 +72,6 @@ target_sources(mbed-m2354
         serial_api.c
         sleep.c
         spi_api.c
-        trng_api.cpp
         us_ticker.c
 )
 

targets/TARGET_NUVOTON/TARGET_M2354/TARGET_TFM/TARGET_NU_M2354/COMPONENT_TFM_S_FW/tfm_s.bin

@@ -894,80 +894,3 @@ NU_PLAT_XTRA_SEC_HDLR(nu_rtc_isenabled_s)
     return TFM_PLATFORM_ERR_SUCCESS;
 }
 #endif
-
-#ifdef __MBED__
-void nu_trng_init_s(void)
-{
-    /* Invoke NSC function */
-    PLAT_NSC_CALL(nu_trng_init_s, NULL, 0, NULL, 0);
-}
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_init_s)
-{
-    /* Check parameter validity */
-    NU_CHK_PARAM_VAL(0, 0);
-
-    CLK_EnableModuleClock(TRNG_MODULE);
-    SYS_ResetModule(TRNG_RST);
-    TRNG_S->ACT |= TRNG_ACT_ACT_Msk;
-    while (!(TRNG_S->CTL & TRNG_CTL_READY_Msk));
-
-    return TFM_PLATFORM_ERR_SUCCESS;
-}
-#endif
-
-#ifdef __MBED__
-void nu_trng_free_s(void)
-{
-     /* Invoke NSC function */
-    PLAT_NSC_CALL(nu_trng_free_s, NULL, 0, NULL, 0);
-}
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_free_s)
-{
-    /* Check parameter validity */
-    NU_CHK_PARAM_VAL(0, 0);
-
-    TRNG_S->ACT &= ~TRNG_ACT_ACT_Msk;
-    CLK_DisableModuleClock(TRNG_MODULE);
-
-    return TFM_PLATFORM_ERR_SUCCESS;
-}
-#endif
-
-#ifdef __MBED__
-int32_t nu_trng_get_bytes_s(uint8_t *output, uint32_t length, uint32_t *output_length)
-{
-    /* Check argument validity */
-    if (!output && length) {
-        return -1;
-    }
-
-    /* Invoke NSC function */
-    PLAT_NSC_CALL(nu_trng_get_bytes_s, NULL, 0, output, length);
-
-    /* Finalize output */
-    if (output_length) {
-        *output_length = outvec.len;
-    }
-
-    return 0;
-}
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_get_bytes_s)
-{
-    /* Check parameter validity */
-    NU_CHK_PARAM_VAL(0, INT_MAX);
-
-    uint8_t *output_ind = out_vec->base;
-    uint8_t *output_end = output_ind + out_vec->len;
-
-    for (; output_ind != output_end; output_ind ++) {
-        TRNG_S->CTL |= TRNG_CTL_TRNGEN_Msk;
-        while (!(TRNG_S->CTL & TRNG_CTL_DVIF_Msk));
-        *output_ind = TRNG_S->DATA & 0xff;
-    }
-
-    return TFM_PLATFORM_ERR_SUCCESS;
-}
-#endif

targets/TARGET_NUVOTON/TARGET_M2354/TARGET_TFM/platform_extra_secure.c

@@ -77,9 +77,6 @@ typedef enum {
     NU_PLAT_XTRA_SEC_REQ(nu_rtc_read_spare_register_s),
     NU_PLAT_XTRA_SEC_REQ(nu_rtc_write_spare_register_s),
     NU_PLAT_XTRA_SEC_REQ(nu_rtc_isenabled_s),
-    NU_PLAT_XTRA_SEC_REQ(nu_trng_init_s),
-    NU_PLAT_XTRA_SEC_REQ(nu_trng_free_s),
-    NU_PLAT_XTRA_SEC_REQ(nu_trng_get_bytes_s),
 
     /* Max request code, plays as number of valid request code */
     NU_PLAT_XTRA_SEC_REQ(MAX),
@@ -346,39 +343,6 @@ int32_t nu_rtc_isenabled_s(void);
 NU_PLAT_XTRA_SEC_HDLR(nu_rtc_isenabled_s);
 #endif
 
-/* Secure trng_init
- *
- * Its synopsis is the same as normal version except change of return/argument type for
- * binary-compatible across compilers.
- */
-#ifdef __MBED__
-void nu_trng_init_s(void);
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_init_s);
-#endif
-
-/* Secure trng_free
- *
- * Its synopsis is the same as normal version except change of return/argument type for
- * binary-compatible across compilers.
- */
-#ifdef __MBED__
-void nu_trng_free_s(void);
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_free_s);
-#endif
-
-/* Secure trng_get_bytes
- *
- * Its synopsis is the same as normal version except change of return/argument type for
- * binary-compatible across compilers.
- */
-#ifdef __MBED__
-int32_t nu_trng_get_bytes_s(uint8_t *output, uint32_t length, uint32_t *output_length);
-#else
-NU_PLAT_XTRA_SEC_HDLR(nu_trng_get_bytes_s);
-#endif
-
 #ifdef __cplusplus
 }
 #endif