]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - include/configs/am43xx_evm.h
am43xx_evm: Enable NAND boot
[karo-tx-uboot.git] / include / configs / am43xx_evm.h
index d9b6c16baacfc9ccced24a6e2ff99b424cdd4351..fce34fa2a96189e80ccb2e00e55b51bd3468355d 100644 (file)
 #define __CONFIG_AM43XX_EVM_H
 
 #define CONFIG_AM43XX
-#define CONFIG_OMAP
-#define CONFIG_OMAP_COMMON
 
-#include <asm/arch/omap.h>
-
-#define CONFIG_DMA_COHERENT
-#define CONFIG_DMA_COHERENT_SIZE       (1 << 20)
-
-#define CONFIG_ENV_SIZE                        (128 << 10)     /* 128 KiB */
-#define CONFIG_SYS_MALLOC_LEN          (1024 << 10)
-#define CONFIG_SYS_LONGHELP            /* undef to save memory */
-#define CONFIG_SYS_HUSH_PARSER         /* use "hush" command parser */
-#define CONFIG_SYS_PROMPT              "U-Boot# "
-#define CONFIG_SYS_NO_FLASH
-#define CONFIG_SYS_CACHELINE_SIZE 32
-
-#define CONFIG_OF_LIBFDT
-#define CONFIG_CMD_BOOTZ
-#define CONFIG_CMDLINE_TAG             /* enable passing of ATAGs */
-#define CONFIG_CMDLINE_EDITING
-#define CONFIG_SETUP_MEMORY_TAGS
-#define CONFIG_INITRD_TAG
-
-/* commands to include */
-#include <config_cmd_default.h>
-
-#define CONFIG_CMD_ASKENV
-#define CONFIG_VERSION_VARIABLE
-
-/* set to negative value for no autoboot */
-#define CONFIG_BOOTDELAY               1
-#define CONFIG_ENV_VARS_UBOOT_CONFIG
-#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
-
-/* Clock Defines */
-#define V_OSCK                         24000000  /* Clock output from T2 */
-#define V_SCLK                         (V_OSCK)
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_SAVEENV
 
-#define CONFIG_CMD_ECHO
-
-/* max number of command args */
-#define CONFIG_SYS_MAXARGS             64
-
-/* Console I/O Buffer Size */
-#define CONFIG_SYS_CBSIZE              512
-
-/* Print Buffer Size */
-#define CONFIG_SYS_PBSIZE              (CONFIG_SYS_CBSIZE \
-                                       + sizeof(CONFIG_SYS_PROMPT) + 16)
-
-/* Boot Argument Buffer Size */
-#define CONFIG_SYS_BARGSIZE            CONFIG_SYS_CBSIZE
-
- /* Physical Memory Map */
-#define CONFIG_NR_DRAM_BANKS           1               /*  1 bank of DRAM */
-#define PHYS_DRAM_1                    0x80000000      /* DRAM Bank #1 */
+#define CONFIG_BOARD_LATE_INIT
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_SYS_CACHELINE_SIZE       32
 #define CONFIG_MAX_RAM_BANK_SIZE       (1024 << 20)    /* 1GB */
-
-#define CONFIG_SYS_SDRAM_BASE          PHYS_DRAM_1
-#define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
-                                               GENERATED_GBL_DATA_SIZE)
-/* Platform/Board specific defs */
-#define CONFIG_SYS_LOAD_ADDR           0x81000000 /* Default load address */
-
 #define CONFIG_SYS_TIMERBASE           0x48040000      /* Use Timer2 */
-#define CONFIG_SYS_PTV                 2       /* Divisor: 2^(PTV+1) => 8 */
+
+#include <asm/arch/omap.h>
 
 /* NS16550 Configuration */
 #define CONFIG_SYS_NS16550
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE    (-4)
-#define CONFIG_SYS_NS16550_CLK         (48000000)
-#define CONFIG_SYS_NS16550_COM1                0x44e09000      /* Base EVM has UART0 */
-
-#define CONFIG_BAUDRATE                115200
-#define CONFIG_SYS_BAUDRATE_TABLE      { 110, 300, 600, 1200, 2400, \
-4800, 9600, 14400, 19200, 28800, 38400, 56000, 57600, 115200 }
-
-/* CPU */
-#define CONFIG_ARCH_CPU_INIT
-
-#define CONFIG_ENV_OVERWRITE           1
-#define CONFIG_SYS_CONSOLE_INFO_QUIET
+#define CONFIG_SYS_NS16550_CLK         48000000
+
+/* I2C Configuration */
+#define CONFIG_CMD_EEPROM
+#define CONFIG_ENV_EEPROM_IS_ON_I2C
+#define CONFIG_SYS_I2C_EEPROM_ADDR     0x50    /* Main EEPROM */
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
+#define CONFIG_SYS_I2C_MULTI_EEPROMS
+
+/* Power */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
+#define CONFIG_POWER_TPS65218
+#define CONFIG_POWER_TPS62362
+
+/* SPL defines. */
+#define CONFIG_SPL_TEXT_BASE           0x40300350
+#define CONFIG_SPL_MAX_SIZE            (220 << 10)     /* 220KB */
+#define CONFIG_SYS_SPL_ARGS_ADDR       (CONFIG_SYS_SDRAM_BASE + \
+                                        (128 << 20))
+#define CONFIG_SPL_POWER_SUPPORT
+#define CONFIG_SPL_YMODEM_SUPPORT
 
-#define CONFIG_ENV_IS_NOWHERE
+/* Enabling L2 Cache */
+#define CONFIG_SYS_L2_PL310
+#define CONFIG_SYS_PL310_BASE  0x48242000
+#define CONFIG_SYS_CACHELINE_SIZE      32
 
 /*
- * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
- * 64 bytes before this address should be set aside for u-boot.img's
- * header. That is 0x800FFFC0--0x80100000 should not be used for any
- * other needs.
+ * Since SPL did pll and ddr initialization for us,
+ * we don't need to do it twice.
  */
-#define CONFIG_SYS_TEXT_BASE           0x80800000
-
-#ifndef        CONFIG_SPL_BUILD
+#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_QSPI_BOOT)
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #endif
 
-/* Defines for SPL */
-#define CONFIG_SPL
-#define CONFIG_SPL_FRAMEWORK
-#define CONFIG_SPL_TEXT_BASE           0x402F0400
-#define CONFIG_SPL_MAX_SIZE            (101 * 1024)
-#define CONFIG_SPL_STACK               CONFIG_SYS_INIT_SP_ADDR
+/*
+ * When building U-Boot such that there is no previous loader
+ * we need to call board_early_init_f.  This is taken care of in
+ * s_init when we have SPL used.
+ */
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT) && !defined(CONFIG_SPL)
+#define CONFIG_BOARD_EARLY_INIT_F
+#endif
+
+/* Now bring in the rest of the common code. */
+#include <configs/ti_armv7_common.h>
 
-#define CONFIG_SPL_BSS_START_ADDR      0x80a00000
-#define CONFIG_SPL_BSS_MAX_SIZE                0x80000         /* 512 KB */
+/* Always 64 KiB env size */
+#define CONFIG_ENV_SIZE                        (64 << 10)
 
-#define CONFIG_SPL_LIBCOMMON_SUPPORT
-#define CONFIG_SPL_LIBDISK_SUPPORT
-#define CONFIG_SPL_LIBGENERIC_SUPPORT
-#define CONFIG_SPL_SERIAL_SUPPORT
-#define CONFIG_SPL_YMODEM_SUPPORT
-#define CONFIG_SPL_LDSCRIPT            "$(CPUDIR)/omap-common/u-boot-spl.lds"
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+/* Clock Defines */
+#define V_OSCK                         24000000  /* Clock output from T2 */
+#define V_SCLK                         (V_OSCK)
 
-#define CONFIG_SPL_BOARD_INIT
-#define CONFIG_SYS_SPL_MALLOC_START    0x80a08000
-#define CONFIG_SYS_SPL_MALLOC_SIZE     0x100000
+/* NS16550 Configuration */
+#define CONFIG_SYS_NS16550_COM1                0x44e09000      /* Base EVM has UART0 */
 
-/* Unsupported features */
-#undef CONFIG_USE_IRQ
+#define CONFIG_ENV_IS_IN_FAT
+#define FAT_ENV_INTERFACE              "mmc"
+#define FAT_ENV_DEVICE_AND_PART                "0:1"
+#define FAT_ENV_FILE                   "uboot.env"
+#define CONFIG_FAT_WRITE
+
+#define CONFIG_SPL_LDSCRIPT            "$(CPUDIR)/omap-common/u-boot-spl.lds"
+
+/* SPL USB Support */
+#define CONFIG_SPL_USB_SUPPORT
+#define CONFIG_SPL_USB_HOST_SUPPORT
+#define CONFIG_SYS_USB_FAT_BOOT_PARTITION              1
 
 #define CONFIG_CMD_USB
 #define CONFIG_USB_HOST
 #define CONFIG_OMAP_USB_PHY
 #define CONFIG_AM437X_USB2PHY2_HOST
 
+/* USB GADGET */
+#if !defined(CONFIG_SPL_BUILD) || \
+       (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_USBETH_SUPPORT))
+#define CONFIG_USB_DWC3_PHY_OMAP
+#define CONFIG_USB_DWC3_OMAP
+#define CONFIG_USB_DWC3
+#define CONFIG_USB_DWC3_GADGET
+
+#define CONFIG_USB_GADGET
+#define CONFIG_USBDOWNLOAD_GADGET
+#define CONFIG_USB_GADGET_VBUS_DRAW 2
+#define CONFIG_G_DNL_MANUFACTURER "Texas Instruments"
+#define CONFIG_G_DNL_VENDOR_NUM 0x0403
+#define CONFIG_G_DNL_PRODUCT_NUM 0xBD00
+#define CONFIG_USB_GADGET_DUALSPEED
+#endif
+
+#ifndef CONFIG_SPL_BUILD
+/* USB Device Firmware Update support */
+#define CONFIG_DFU_FUNCTION
+#define CONFIG_DFU_RAM
+#define CONFIG_CMD_DFU
+
+#define CONFIG_DFU_MMC
+#define DFU_ALT_INFO_MMC \
+       "dfu_alt_info_mmc=" \
+       "boot part 0 1;" \
+       "rootfs part 0 2;" \
+       "MLO fat 0 1;" \
+       "spl-os-args fat 0 1;" \
+       "spl-os-image fat 0 1;" \
+       "u-boot.img fat 0 1;" \
+       "uEnv.txt fat 0 1\0"
+
+#define DFU_ALT_INFO_EMMC \
+       "dfu_alt_info_emmc=" \
+       "MLO raw 0x100 0x100 mmcpart 0;" \
+       "u-boot.img raw 0x300 0x1000 mmcpart 0\0"
+
+#define CONFIG_DFU_RAM
+#define DFU_ALT_INFO_RAM \
+       "dfu_alt_info_ram=" \
+       "kernel ram 0x80200000 0x4000000;" \
+       "fdt ram 0x80f80000 0x80000;" \
+       "ramdisk ram 0x81000000 0x4000000\0"
+
+#define DFUARGS \
+       "dfu_bufsiz=0x10000\0" \
+       DFU_ALT_INFO_MMC \
+       DFU_ALT_INFO_EMMC \
+       DFU_ALT_INFO_RAM
+#else
+#define DFUARGS
+#endif
+
+#ifdef CONFIG_QSPI_BOOT
+#define CONFIG_SYS_TEXT_BASE           0x30000000
+#undef CONFIG_ENV_IS_IN_FAT
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
+#define CONFIG_ENV_SPI_MAX_HZ           CONFIG_SF_DEFAULT_SPEED
+#define CONFIG_ENV_SECT_SIZE           (64 << 10) /* 64 KB sectors */
+#define CONFIG_ENV_OFFSET              0x110000
+#define CONFIG_ENV_OFFSET_REDUND       0x120000
+#ifdef MTDIDS_DEFAULT
+#undef MTDIDS_DEFAULT
+#endif
+#ifdef MTDPARTS_DEFAULT
+#undef MTDPARTS_DEFAULT
+#endif
+#define MTDPARTS_DEFAULT               "mtdparts=qspi.0:512k(QSPI.u-boot)," \
+                                       "512k(QSPI.u-boot.backup)," \
+                                       "512k(QSPI.u-boot-spl-os)," \
+                                       "64k(QSPI.u-boot-env)," \
+                                       "64k(QSPI.u-boot-env.backup)," \
+                                       "8m(QSPI.kernel)," \
+                                       "-(QSPI.file-system)"
+#endif
+
+/* SPI */
+#undef CONFIG_OMAP3_SPI
+#define CONFIG_TI_QSPI
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_MACRONIX
+#define CONFIG_CMD_SF
+#define CONFIG_CMD_SPI
+#define CONFIG_TI_SPI_MMAP
+#define CONFIG_SPI_FLASH_BAR
+#define CONFIG_QSPI_SEL_GPIO                   48
+#define CONFIG_SF_DEFAULT_SPEED                48000000
+#define CONFIG_DEFAULT_SPI_MODE                SPI_MODE_3
+
+/* Enhance our eMMC support / experience. */
+#define CONFIG_CMD_GPT
+#define CONFIG_EFI_PARTITION
+
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_EXTRA_ENV_SETTINGS \
+       DEFAULT_LINUX_BOOT_ENV \
+       "fdtfile=undefined\0" \
+       "bootpart=0:2\0" \
+       "bootdir=/boot\0" \
+       "bootfile=zImage\0" \
+       "console=ttyO0,115200n8\0" \
+       "partitions=" \
+               "uuid_disk=${uuid_gpt_disk};" \
+               "name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}\0" \
+       "optargs=\0" \
+       "mmcdev=0\0" \
+       "mmcroot=/dev/mmcblk0p2 rw\0" \
+       "mmcrootfstype=ext4 rootwait\0" \
+       "usbroot=/dev/sda2 rw\0" \
+       "usbrootfstype=ext4 rootwait\0" \
+       "usbdev=0\0" \
+       "ramroot=/dev/ram0 rw\0" \
+       "ramrootfstype=ext2\0" \
+       "mmcargs=setenv bootargs console=${console} " \
+               "${optargs} " \
+               "root=${mmcroot} " \
+               "rootfstype=${mmcrootfstype}\0" \
+       "usbargs=setenv bootargs console=${console} " \
+               "${optargs} " \
+               "root=${usbroot} " \
+               "rootfstype=${usbrootfstype}\0" \
+       "bootenv=uEnv.txt\0" \
+       "loadbootenv=load ${devtype} ${devnum} ${loadaddr} ${bootenv}\0" \
+       "importbootenv=echo Importing environment from mmc ...; " \
+               "env import -t $loadaddr $filesize\0" \
+       "ramargs=setenv bootargs console=${console} " \
+               "${optargs} " \
+               "root=${ramroot} " \
+               "rootfstype=${ramrootfstype}\0" \
+       "loadramdisk=load ${devtype} ${devnum} ${rdaddr} ramdisk.gz\0" \
+       "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
+       "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
+       "mmcboot=mmc dev ${mmcdev}; " \
+               "setenv devnum ${mmcdev}; " \
+               "setenv devtype mmc; " \
+               "if mmc rescan; then " \
+                       "echo SD/MMC found on device ${devnum};" \
+                       "if run loadbootenv; then " \
+                               "echo Loaded environment from ${bootenv};" \
+                               "run importbootenv;" \
+                       "fi;" \
+                       "if test -n $uenvcmd; then " \
+                               "echo Running uenvcmd ...;" \
+                               "run uenvcmd;" \
+                       "fi;" \
+                       "if run loadimage; then " \
+                               "run loadfdt; " \
+                               "echo Booting from mmc${mmcdev} ...; " \
+                               "run mmcargs; " \
+                               "bootz ${loadaddr} - ${fdtaddr}; " \
+                       "fi;" \
+               "fi;\0" \
+       "usbboot=" \
+               "setenv devnum ${usbdev}; " \
+               "setenv devtype usb; " \
+               "usb start ${usbdev}; " \
+               "if usb dev ${usbdev}; then " \
+                       "if run loadbootenv; then " \
+                               "echo Loaded environment from ${bootenv};" \
+                               "run importbootenv;" \
+                       "fi;" \
+                       "if test -n $uenvcmd; then " \
+                               "echo Running uenvcmd ...;" \
+                               "run uenvcmd;" \
+                       "fi;" \
+                       "if run loadimage; then " \
+                               "run loadfdt; " \
+                               "echo Booting from usb ${usbdev}...; " \
+                               "run usbargs;" \
+                               "bootz ${loadaddr} - ${fdtaddr}; " \
+                       "fi;" \
+               "fi\0" \
+       "findfdt="\
+               "if test $board_name = AM43EPOS; then " \
+                       "setenv fdtfile am43x-epos-evm.dtb; fi; " \
+               "if test $board_name = AM43__GP; then " \
+                       "setenv fdtfile am437x-gp-evm.dtb; fi; " \
+               "if test $board_name = AM43__SK; then " \
+                       "setenv fdtfile am437x-sk-evm.dtb; fi; " \
+               "if test $board_name = AM43_IDK; then " \
+                       "setenv fdtfile am437x-idk-evm.dtb; fi; " \
+               "if test $fdtfile = undefined; then " \
+                       "echo WARNING: Could not determine device tree; fi; \0" \
+       NANDARGS \
+       NETARGS \
+       DFUARGS \
+
+#define CONFIG_BOOTCOMMAND \
+       "run findfdt; " \
+       "run mmcboot;" \
+       "run usbboot;" \
+       NANDBOOT \
+
+#endif
+
+/* CPSW Ethernet */
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_MII
+#define CONFIG_DRIVER_TI_CPSW
+#define CONFIG_MII
+#define CONFIG_BOOTP_DEFAULT
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+#define CONFIG_BOOTP_SEND_HOSTNAME
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_NET_RETRY_COUNT         10
+#define CONFIG_PHY_GIGE
+#define CONFIG_PHYLIB
+
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_NET_VCI_STRING      "AM43xx U-Boot SPL"
+
+#define CONFIG_SPL_ETH_SUPPORT
+#define CONFIG_SPL_NET_SUPPORT
+#define CONFIG_SYS_RX_ETH_BUFFER       64
+
+/* NAND support */
+#ifdef CONFIG_NAND
+/* NAND: device related configs */
+#define CONFIG_SYS_NAND_PAGE_SIZE      4096
+#define CONFIG_SYS_NAND_OOBSIZE                224
+#define CONFIG_SYS_NAND_BLOCK_SIZE     (256*1024)
+#define CONFIG_SYS_NAND_PAGE_COUNT     (CONFIG_SYS_NAND_BLOCK_SIZE / \
+                                        CONFIG_SYS_NAND_PAGE_SIZE)
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+/* NAND: driver related configs */
+#define CONFIG_NAND_OMAP_GPMC
+#define CONFIG_NAND_OMAP_ELM
+#define CONFIG_SYS_NAND_ONFI_DETECTION
+#define CONFIG_NAND_OMAP_ECCSCHEME     OMAP_ECC_BCH16_CODE_HW
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS  NAND_LARGE_BADBLOCK_POS
+#define CONFIG_SYS_NAND_ECCPOS { 2, 3, 4, 5, 6, 7, 8, 9, \
+                               10, 11, 12, 13, 14, 15, 16, 17, 18, 19, \
+                               20, 21, 22, 23, 24, 25, 26, 27, 28, 29, \
+                               30, 31, 32, 33, 34, 35, 36, 37, 38, 39, \
+                               40, 41, 42, 43, 44, 45, 46, 47, 48, 49, \
+                               50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \
+                               60, 61, 62, 63, 64, 65, 66, 67, 68, 69, \
+                               70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \
+                               80, 81, 82, 83, 84, 85, 86, 87, 88, 89, \
+                               90, 91, 92, 93, 94, 95, 96, 97, 98, 99, \
+                       100, 101, 102, 103, 104, 105, 106, 107, 108, 109, \
+                       110, 111, 112, 113, 114, 115, 116, 117, 118, 119, \
+                       120, 121, 122, 123, 124, 125, 126, 127, 128, 129, \
+                       130, 131, 132, 133, 134, 135, 136, 137, 138, 139, \
+                       140, 141, 142, 143, 144, 145, 146, 147, 148, 149, \
+                       150, 151, 152, 153, 154, 155, 156, 157, 158, 159, \
+                       160, 161, 162, 163, 164, 165, 166, 167, 168, 169, \
+                       170, 171, 172, 173, 174, 175, 176, 177, 178, 179, \
+                       180, 181, 182, 183, 184, 185, 186, 187, 188, 189, \
+                       190, 191, 192, 193, 194, 195, 196, 197, 198, 199, \
+                       200, 201, 202, 203, 204, 205, 206, 207, 208, 209, \
+                       }
+#define CONFIG_SYS_NAND_ECCSIZE                512
+#define CONFIG_SYS_NAND_ECCBYTES       26
+#define MTDIDS_DEFAULT                 "nand0=nand.0"
+#define MTDPARTS_DEFAULT               "mtdparts=nand.0:" \
+                                       "256k(NAND.SPL)," \
+                                       "256k(NAND.SPL.backup1)," \
+                                       "256k(NAND.SPL.backup2)," \
+                                       "256k(NAND.SPL.backup3)," \
+                                       "512k(NAND.u-boot-spl-os)," \
+                                       "1m(NAND.u-boot)," \
+                                       "256k(NAND.u-boot-env)," \
+                                       "256k(NAND.u-boot-env.backup1)," \
+                                       "7m(NAND.kernel)," \
+                                       "-(NAND.file-system)"
+#define CONFIG_SYS_NAND_U_BOOT_OFFS    0x00180000
+/* NAND: SPL related configs */
+#ifdef CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_AM33XX_BCH
+#endif
+/* NAND: SPL falcon mode configs */
+#ifdef CONFIG_SPL_OS_BOOT
+#define CONFIG_CMD_SPL_NAND_OFS                0x00100000 /* os parameters */
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS        0x00300000 /* kernel offset */
+#define CONFIG_CMD_SPL_WRITE_SIZE      CONFIG_SYS_NAND_BLOCK_SIZE
+#endif
+#define NANDARGS \
+       "mtdids=" MTDIDS_DEFAULT "\0" \
+       "mtdparts=" MTDPARTS_DEFAULT "\0" \
+       "nandargs=setenv bootargs console=${console} " \
+               "${optargs} " \
+               "root=${nandroot} " \
+               "rootfstype=${nandrootfstype}\0" \
+       "nandroot=ubi0:rootfs rw ubi.mtd=NAND.file-system,4096\0" \
+       "nandrootfstype=ubifs rootwait=1\0" \
+       "nandboot=echo Booting from nand ...; " \
+               "run nandargs; " \
+               "nand read ${fdtaddr} NAND.u-boot-spl-os; " \
+               "nand read ${loadaddr} NAND.kernel; " \
+               "bootz ${loadaddr} - ${fdtaddr}\0"
+#define NANDBOOT                       "run nandboot; "
+#else /* !CONFIG_NAND */
+#define NANDARGS
+#define NANDBOOT
+#endif /* CONFIG_NAND */
+
 #endif /* __CONFIG_AM43XX_EVM_H */