Merge pull request #23 from Ham22/bug-32

Reset TPM on boot

Author: Ham22

board/imgtec/pistachio_bub/mfio.c

@@ -5,6 +5,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
+#include <common.h>
 #include <asm/io.h>
 #include <asm/pistachio.h>
 #include "mfio.h"
@@ -327,3 +328,16 @@ void mfio_setup_led(void)
 	pistachio_set_gpio_output_state(76, 1);
 }
 #endif
+
+#if defined(CONFIG_TARGET_PISTACHIO_MARDUK)
+void mfio_setup_tpm(void)
+{
+	/* Reset the TPM, first versions of the board
+	have the tpm reset connected to gpio 42 instead
+	of directly connected to system reset */
+	pistachio_configure_gpio(42, 1);
+	pistachio_set_gpio_output_state(42, 0);
+	udelay(100);
+	pistachio_set_gpio_output_state(42, 1);
+}
+#endif

board/imgtec/pistachio_bub/mfio.h

@@ -189,3 +189,7 @@ void mfio_setup_usb_pwr(void);
 #if defined(CONFIG_TARGET_PISTACHIO_MARDUK)
 void mfio_setup_led(void);
 #endif
+
+#if defined(CONFIG_TARGET_PISTACHIO_MARDUK)
+void mfio_setup_tpm(void);
+#endif

board/imgtec/pistachio_bub/pistachio.c

@@ -197,19 +197,18 @@ 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");
+	uint32_t result;
+
+	mfio_setup_tpm();
+	udelay(10000);
+	tpm_init();
+	result = tpm_startup(TPM_ST_CLEAR);
+	if (result != 0) {
+		printf("tpm startup failed with 0x%x\n", result);
 		return 1;
 	}
+	printf("TPM:   Infineon (1.2)\n");
 #endif
-#ifdef CONFIG_PISTACHIO_WATCHDOG
-	hw_watchdog_init();
-#endif
-	return 0;
-}
-
-int misc_init_r(void)
-{
 	return 0;
 }
 

common/board_f.c

@@ -115,7 +115,7 @@ static int init_func_watchdog_init(void)
 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
 	defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
 	defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
-	defined(CONFIG_IMX_WATCHDOG))
+	defined(CONFIG_IMX_WATCHDOG) || defined(CONFIG_PISTACHIO_WATCHDOG))
 	hw_watchdog_init();
 # endif
 	puts("       Watchdog enabled\n");

include/configs/pistachio_bub.h

@@ -21,6 +21,7 @@
 #define CONFIG_PISTACHIO
 #define PISTACHIO_BOARD_NAME		CONFIG_SYS_CONFIG_NAME
 #define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
 #define CONFIG_DISPLAY_BOARDINFO
 #define CONFIG_WINBOND_OTP
 #define CONFIG_OF_LIBFDT
@@ -233,6 +234,7 @@
 #define CONFIG_TPM_TIS_I2C_SLAVE_ADDRESS	0x20
 #define CONFIG_TPM_TIS_I2C
 #define CONFIG_CMD_TPM
+#define CONFIG_CMD_TPM_TEST
 
 /* MMC - Sdhost */
 #define CONFIG_MMC