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board: ti: am654: Disable SA2UL node for HS devices

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On HS devices the access to SA2UL is restricted on the non-secure
ARM side, disable the node in DT to prevent firewall violations.
We used to only disable the TRNG but now that we have full SA2UL
support in Linux, in which TRNG is a sub-module, disable both
by disabling the parent SA2UL node.

Signed-off-by: Andrew F. Davis <afd@ti.com>
This commit is contained in:
Andrew F. Davis 2020-06-09 15:14:22 -04:00 committed by Lokesh Vutla
parent eab48865f9
commit 83a0e9ddaa
1 changed files with 3 additions and 3 deletions
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6
board/ti/am65x/evm.c
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@ -108,10 +108,10 @@ int ft_board_setup(void *blob, bd_t *bd)
}
#if defined(CONFIG_TI_SECURE_DEVICE)
/* Make HW RNG reserved for secure world use */
ret = fdt_disable_node(blob, "/interconnect@100000/trng@4e10000");
/* Make Crypto HW reserved for secure world use */
ret = fdt_disable_node(blob, "/interconnect@100000/crypto@4E00000");
if (ret)
printf("%s: disabling TRGN failed %d\n", __func__, ret);
printf("%s: disabling SA2UL failed %d\n", __func__, ret);
#endif
return 0;