Merge branch 'tx28-update' into tx28-bugfix
[karo-tx-uboot.git] / include / configs / tx6.h
index 52ca7a7..8b1b05b 100644 (file)
 #define CONFIG_SYS_SDRAM_BUS_WIDTH     64
 #endif
 #endif /* CONFIG_SYS_SDRAM_BUS_WIDTH */
-#define PHYS_SDRAM_1_SIZE              (SZ_512M / 32 * CONFIG_SYS_SDRAM_BUS_WIDTH)
+#ifdef __ASSEMBLY__
+#define _AC(x,s)                       x
+#else
+#define _AC(x,s)                       (x##s)
+#endif
+#define UL(x)                          _AC(x,UL)
+#define PHYS_SDRAM_1_SIZE              (UL(CONFIG_SYS_SDRAM_CHIP_SIZE) * SZ_1M \
+                               / 32 * CONFIG_SYS_SDRAM_BUS_WIDTH)
+#if PHYS_SDRAM_1_SIZE > SZ_1G
+#define FDT_HIGH_STR                   "fdt_high=ffffffff\0"
+#else
+#define FDT_HIGH_STR                   ""
+#endif
+
 #ifdef CONFIG_SOC_MX6Q
 #define CONFIG_SYS_SDRAM_CLK           528
 #else
        EMMC_BOOT_PART_STR                                              \
        EMMC_BOOT_ACK_STR                                               \
        "fdtaddr=" xstr(CONFIG_FDTADDR) "\0"                            \
-       CONFIG_SYS_FDTSAVE_CMD                                          \
+       FDT_HIGH_STR                                                    \
+       FDTSAVE_CMD_STR                                                 \
        "mtdids=" MTDIDS_DEFAULT "\0"                                   \
        "mtdparts=" MTDPARTS_DEFAULT "\0"                               \
        "nfsroot=/tftpboot/rootfs\0"                                    \
 #define CONFIG_SYS_DEFAULT_BOOT_MODE   "nand"
 #define CONFIG_SYS_BOOT_CMD_NAND                                       \
        "bootcmd_nand=setenv autostart no;run bootargs_ubifs;nboot linux\0"
-#define CONFIG_SYS_FDTSAVE_CMD                                         \
+#define FDTSAVE_CMD_STR                                                        \
        "fdtsave=fdt resize;nand erase.part dtb"                        \
        ";nand write ${fdtaddr} dtb ${fdtsize}\0"
 #define MTD_NAME                       "gpmi-nand"
 #define CONFIG_SYS_DEFAULT_BOOT_MODE   "mmc"
 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
 #define CONFIG_SYS_BOOT_CMD_NAND       ""
-#define CONFIG_SYS_FDTSAVE_CMD                                         \
+#define FDTSAVE_CMD_STR                                                        \
        "fdtsave=mmc partconf 0 ${emmc_boot_ack} ${emmc_boot_part} ${emmc_boot_part}" \
        ";mmc write ${fdtaddr} " xstr(CONFIG_SYS_DTB_BLKNO) " 80"       \
        ";mmc partconf 0 ${emmc_boot_ack} ${emmc_boot_part} 0\0"
 #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 */