If the FEAT_CRYPTO feature bit is present in MCU features, the board crypto is implemented by MCU and the Atmel SHA chip is not present. Disable Atmel SHA device-tree node in that case.
Signed-off-by: Marek Behún kabel@kernel.org --- board/CZ.NIC/turris_omnia/turris_omnia.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c index 46f576a460e..1f90ac5c7a7 100644 --- a/board/CZ.NIC/turris_omnia/turris_omnia.c +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c @@ -1039,6 +1039,25 @@ static int fixup_mcu_gpio_in_eth_wan_node(void *blob) return 0; }
+static void fixup_atsha_node(void *blob) +{ + int node; + + if (!omnia_mcu_has_feature(FEAT_CRYPTO)) + return; + + node = fdt_node_offset_by_compatible(blob, -1, "atmel,atsha204a"); + if (node < 0) { + printf("Cannot find ATSHA204A node!\n"); + return; + } + + if (fdt_status_disabled(blob, node) < 0) + printf("Cannot disable ATSHA204A node!\n"); + else + debug("Disabled ATSHA204A node\n"); +} + #endif
#if IS_ENABLED(CONFIG_OF_BOARD_FIXUP) @@ -1052,6 +1071,8 @@ int board_fix_fdt(void *blob) fixup_msata_port_nodes(blob); fixup_wwan_port_nodes(blob);
+ fixup_atsha_node(blob); + return 0; } #endif @@ -1244,6 +1265,8 @@ int ft_board_setup(void *blob, struct bd_info *bd) fixup_msata_port_nodes(blob); fixup_wwan_port_nodes(blob);
+ fixup_atsha_node(blob); + return 0; } #endif