karo: tx6ul: disable the PMIC for '_noenv' U-Boot

[karo-tx-uboot.git] / include / configs / tx6.h

diff --git a/include/configs/tx6.h b/include/configs/tx6.h
index 9c755ddf03326d20775fde6a96b5feacd9a78494..d8ab70c31e92af68878c0aeee18ca5a15ac0f59d 100644 (file)
--- a/include/configs/tx6.h
+++ b/include/configs/tx6.h
@@ -321,15 +321,22 @@
 #else /* CONFIG_TX6_REV */
 /* autodetect which PMIC is present to derive TX6_REV */
 #ifdef CONFIG_SOC_MX6UL
+#ifndef CONFIG_TX6_UBOOT_NOENV
+/* NOENV U-Boot is used for initial bootstrap.
+ * Since the TAMPER_PIN_DISABLE fuses have to be programmed
+ * to be able to use the TAMPER pins as GPIO to access the
+ * PMIC I2C bus, this is not possible on virgin hardware.
+ */
 #define CONFIG_SYS_I2C
 #define CONFIG_SYS_I2C_SOFT
 #define CONFIG_SYS_I2C_SOFT_SPEED      400000
 #define CONFIG_SOFT_I2C_GPIO_SCL       IMX_GPIO_NR(5, 0)
 #define CONFIG_SOFT_I2C_GPIO_SDA       IMX_GPIO_NR(5, 1)
 #define CONFIG_SOFT_I2C_READ_REPEATED_START
-#else
+#endif /* CONFIG_TX6_UBOOT_NOENV */
+#else /* !CONFIG_SOC_MX6UL */
 #define CONFIG_LTC3676                 /* TX6_REV == 1 */
-#endif
+#endif /*  CONFIG_SOC_MX6UL */
 #define CONFIG_RN5T567                 /* TX6_REV == 3 */
 #endif /* CONFIG_TX6_REV */