pistachio.c: initialise tpm on boot

If tpm support is enabled then initialise it on boot.

Note that the tpm will need to be provisioned (possibly at factory)
in order to allow users to enable the physical presence line and
enable/activate/takeowenership of their tpm.

The following commands can be used from the uboot prompt to do this:
tpm tsc_physical_presence 0x60
tpm tsc_physical_presence 0x08

tpm physical_enable
tpm physical_set_deactivated 0

Signed-off-by: Ian Pozella <[email protected]>

Author: Ham22

board/imgtec/pistachio_bub/pistachio.c

@@ -20,6 +20,7 @@
 #include <asm/pistachio.h>
 #include <asm-generic/sections.h>
 #include <watchdog.h>
+#include <tpm.h>
 
 #include "mfio.h"
 
@@ -172,6 +173,12 @@ int board_early_init_f(void)
 
 int board_late_init(void)
 {
+#ifdef CONFIG_TPM
+	if (tpm_init() || tpm_startup(TPM_ST_CLEAR)) {
+		printf("Failed to enable tpm!\n");
+		return 1;
+	}
+#endif
 #ifdef CONFIG_PISTACHIO_WATCHDOG
 	hw_watchdog_init();
 #endif