m68k: Use getenv_ulong() in place of getenv(), strtoul

[u-boot] / README

diff --git a/README b/README
index 8bb9c8d6be2a1b4bc50ea6882dcb1e1f12956b0f..c6b179cb627217e63d5b6967ce88651211538697 100644 (file)
--- a/README
+++ b/README
@@ -147,7 +147,7 @@ Directory Hierarchy:
     /cpu               CPU specific files
       /arm720t         Files specific to ARM 720 CPUs
       /arm920t         Files specific to ARM 920 CPUs
     /cpu               CPU specific files
       /arm720t         Files specific to ARM 720 CPUs
       /arm920t         Files specific to ARM 920 CPUs

-       /at91rm9200     Files specific to Atmel AT91RM9200 CPU
+       /at91           Files specific to Atmel AT91RM9200 CPU

        /imx            Files specific to Freescale MC9328 i.MX CPUs
        /s3c24x0        Files specific to Samsung S3C24X0 CPUs
       /arm925t         Files specific to ARM 925 CPUs
        /imx            Files specific to Freescale MC9328 i.MX CPUs
        /s3c24x0        Files specific to Samsung S3C24X0 CPUs
       /arm925t         Files specific to ARM 925 CPUs


@@ -180,6 +180,12 @@ Directory Hierarchy:
     /lib               Architecture specific library files
   /mips                        Files generic to MIPS architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /mips                        Files generic to MIPS architecture
     /cpu               CPU specific files

+      /mips32          Files specific to MIPS32 CPUs
+      /xburst          Files specific to Ingenic XBurst CPUs
+    /lib               Architecture specific library files
+  /nds32               Files generic to NDS32 architecture
+    /cpu               CPU specific files
+      /n1213           Files specific to Andes Technology N1213 CPUs

     /lib               Architecture specific library files
   /nios2               Files generic to Altera NIOS2 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /nios2               Files generic to Altera NIOS2 architecture
     /cpu               CPU specific files


@@ -382,6 +388,38 @@ The following options need to be configured:
                2. The core frequency as calculated above is multiplied
                by this value.
 
                2. The core frequency as calculated above is multiplied
                by this value.
 

+- MIPS CPU options:
+               CONFIG_SYS_INIT_SP_OFFSET
+
+               Offset relative to CONFIG_SYS_SDRAM_BASE for initial stack
+               pointer. This is needed for the temporary stack before
+               relocation.
+
+               CONFIG_SYS_MIPS_CACHE_MODE
+
+               Cache operation mode for the MIPS CPU.
+               See also arch/mips/include/asm/mipsregs.h.
+               Possible values are:
+                       CONF_CM_CACHABLE_NO_WA
+                       CONF_CM_CACHABLE_WA
+                       CONF_CM_UNCACHED
+                       CONF_CM_CACHABLE_NONCOHERENT
+                       CONF_CM_CACHABLE_CE
+                       CONF_CM_CACHABLE_COW
+                       CONF_CM_CACHABLE_CUW
+                       CONF_CM_CACHABLE_ACCELERATED
+
+               CONFIG_SYS_XWAY_EBU_BOOTCFG
+
+               Special option for Lantiq XWAY SoCs for booting from NOR flash.
+               See also arch/mips/cpu/mips32/start.S.
+
+               CONFIG_XWAY_SWAP_BYTES
+
+               Enable compilation of tools/xway-swap-bytes needed for Lantiq
+               XWAY SoCs for booting from NOR flash. The U-Boot image needs to
+               be swapped if a flash programmer is used.
+

 - Linux Kernel Interface:
                CONFIG_CLOCKS_IN_MHZ
 
 - Linux Kernel Interface:
                CONFIG_CLOCKS_IN_MHZ
 


@@ -442,6 +480,16 @@ The following options need to be configured:
                crash. This is needed for buggy hardware (uc101) where
                no pull down resistor is connected to the signal IDE5V_DD7.
 
                crash. This is needed for buggy hardware (uc101) where
                no pull down resistor is connected to the signal IDE5V_DD7.
 

+               CONFIG_MACH_TYPE        [relevant for ARM only][mandatory]
+
+               This setting is mandatory for all boards that have only one
+               machine type and must be used to specify the machine type
+               number as it appears in the ARM machine registry
+               (see http://www.arm.linux.org.uk/developer/machines/).
+               Only boards that have multiple machine types supported
+               in a single configuration file and the machine type is
+               runtime discoverable, do not have to use this setting.
+

 - vxWorks boot parameters:
 
                bootvx constructs a valid bootline using the following
 - vxWorks boot parameters:
 
                bootvx constructs a valid bootline using the following


@@ -460,6 +508,17 @@ The following options need to be configured:
                Note: If a "bootargs" environment is defined, it will overwride
                the defaults discussed just above.
 
                Note: If a "bootargs" environment is defined, it will overwride
                the defaults discussed just above.
 

+- Cache Configuration:
+               CONFIG_SYS_ICACHE_OFF - Do not enable instruction cache in U-Boot
+               CONFIG_SYS_DCACHE_OFF - Do not enable data cache in U-Boot
+               CONFIG_SYS_L2CACHE_OFF- Do not enable L2 cache in U-Boot
+
+- Cache Configuration for ARM:
+               CONFIG_SYS_L2_PL310 - Enable support for ARM PL310 L2 cache
+                                     controller
+               CONFIG_SYS_PL310_BASE - Physical base address of PL310
+                                       controller register space
+

 - Serial Ports:
                CONFIG_PL010_SERIAL
 
 - Serial Ports:
                CONFIG_PL010_SERIAL
 


@@ -565,6 +624,20 @@ The following options need to be configured:
                must be defined, to setup the maximum idle timeout for
                the SMC.
 
                must be defined, to setup the maximum idle timeout for
                the SMC.
 

+- Pre-Console Buffer:
+               Prior to the console being initialised (i.e. serial UART
+               initialised etc) all console output is silently discarded.
+               Defining CONFIG_PRE_CONSOLE_BUFFER will cause U-Boot to
+               buffer any console messages prior to the console being
+               initialised to a buffer of size CONFIG_PRE_CON_BUF_SZ
+               bytes located at CONFIG_PRE_CON_BUF_ADDR. The buffer is
+               a circular buffer, so if more than CONFIG_PRE_CON_BUF_SZ
+               bytes are output before the console is initialised, the
+               earlier bytes are discarded.
+
+               'Sane' compilers will generate smaller code if
+               CONFIG_PRE_CON_BUF_SZ is a power of 2
+

 - Boot Delay:  CONFIG_BOOTDELAY - in seconds
                Delay before automatically booting the default image;
                set to -1 to disable autoboot.
 - Boot Delay:  CONFIG_BOOTDELAY - in seconds
                Delay before automatically booting the default image;
                set to -1 to disable autoboot.


@@ -715,8 +788,8 @@ The following options need to be configured:
                CONFIG_CMD_SOURCE         "source" command Support
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
                CONFIG_CMD_SOURCE         "source" command Support
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode

+               CONFIG_CMD_TIME         * run command and report execution time

                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_USB          * USB support

-               CONFIG_CMD_VFD          * VFD support (TRAB)

                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_FSL          * Microblaze FSL support
 
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_FSL          * Microblaze FSL support
 


@@ -1044,6 +1117,15 @@ The following options need to be configured:
                enabled with CONFIG_CMD_MMC. The MMC driver also works with
                the FAT fs. This is enabled with CONFIG_CMD_FAT.
 
                enabled with CONFIG_CMD_MMC. The MMC driver also works with
                the FAT fs. This is enabled with CONFIG_CMD_FAT.
 

+               CONFIG_SH_MMCIF
+               Support for Renesas on-chip MMCIF controller
+
+                       CONFIG_SH_MMCIF_ADDR
+                       Define the base address of MMCIF registers
+
+                       CONFIG_SH_MMCIF_CLK
+                       Define the clock frequency for MMCIF
+

 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV
 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV


@@ -1115,7 +1197,7 @@ The following options need to be configured:
                or CONFIG_VIDEO_SED13806_16BPP
 
                CONFIG_FSL_DIU_FB
                or CONFIG_VIDEO_SED13806_16BPP
 
                CONFIG_FSL_DIU_FB

-               Enable the Freescale DIU video driver.  Reference boards for
+               Enable the Freescale DIU video driver.  Reference boards for

                SOCs that have a DIU should define this macro to enable DIU
                support, and should also define these other macros:
 
                SOCs that have a DIU should define this macro to enable DIU
                support, and should also define these other macros:
 


@@ -1694,12 +1776,12 @@ The following options need to be configured:
                =>
 
                If you now switch to the new I2C Bus 3 with "i2c dev 3"
                =>
 
                If you now switch to the new I2C Bus 3 with "i2c dev 3"

-               u-boot sends First the Commando to the mux@70 to enable
-               channel 6, and then the Commando to the mux@71 to enable
+               u-boot first sends the command to the mux@70 to enable
+               channel 6, and then the command to the mux@71 to enable

                the channel 4.
 
                After that, you can use the "normal" i2c commands as
                the channel 4.
 
                After that, you can use the "normal" i2c commands as

-               usual, to communicate with your I2C devices behind
+               usual to communicate with your I2C devices behind

                the 2 muxes.
 
                This option is actually implemented for the bitbanging
                the 2 muxes.
 
                This option is actually implemented for the bitbanging


@@ -2032,28 +2114,6 @@ The following options need to be configured:
                example, some LED's) on your board. At the moment,
                the following checkpoints are implemented:
 
                example, some LED's) on your board. At the moment,
                the following checkpoints are implemented:
 

-- Standalone program support:
-               CONFIG_STANDALONE_LOAD_ADDR
-
-               This option allows to define board specific values
-               for the address where standalone program gets loaded,
-               thus overwriting the architecutre dependent default
-               settings.
-
-- Frame Buffer Address:
-       CONFIG_FB_ADDR
-
-       Define CONFIG_FB_ADDR if you want to use specific address for
-       frame buffer.
-       Then system will reserve the frame buffer address to defined address
-       instead of lcd_setmem (this function grab the memory for frame buffer
-       by panel's size).
-
-       Please see board_init_f function.
-
-       If you want this config option then,
-       please define it at your board config file
-

 Legacy uImage format:
 
   Arg  Where                   When
 Legacy uImage format:
 
   Arg  Where                   When


@@ -2207,6 +2267,25 @@ FIT uImage format:
  -150  common/cmd_nand.c       Incorrect FIT image format
   151  common/cmd_nand.c       FIT image format OK
 
  -150  common/cmd_nand.c       Incorrect FIT image format
   151  common/cmd_nand.c       FIT image format OK
 

+- Standalone program support:
+               CONFIG_STANDALONE_LOAD_ADDR
+
+               This option defines a board specific value for the
+               address where standalone program gets loaded, thus
+               overwriting the architecture dependent default
+               settings.
+
+- Frame Buffer Address:
+               CONFIG_FB_ADDR
+
+               Define CONFIG_FB_ADDR if you want to use specific
+               address for frame buffer.
+               Then system will reserve the frame buffer address to
+               defined address instead of lcd_setmem (this function
+               grabs the memory for frame buffer by panel's size).
+
+               Please see board_init_f function.
+

 - Automatic software updates via TFTP server
                CONFIG_UPDATE_TFTP
                CONFIG_UPDATE_TFTP_CNT_MAX
 - Automatic software updates via TFTP server
                CONFIG_UPDATE_TFTP
                CONFIG_UPDATE_TFTP_CNT_MAX


@@ -2226,11 +2305,50 @@ FIT uImage format:
                Adds the MTD partitioning infrastructure from the Linux
                kernel. Needed for UBI support.
 
                Adds the MTD partitioning infrastructure from the Linux
                kernel. Needed for UBI support.
 

+- SPL framework
+               CONFIG_SPL
+               Enable building of SPL globally.
+
+               CONFIG_SPL_TEXT_BASE
+               TEXT_BASE for linking the SPL binary.
+
+               CONFIG_SPL_LDSCRIPT
+               LDSCRIPT for linking the SPL binary.
+
+               CONFIG_SPL_LIBCOMMON_SUPPORT
+               Support for common/libcommon.o in SPL binary
+
+               CONFIG_SPL_LIBDISK_SUPPORT
+               Support for disk/libdisk.o in SPL binary
+
+               CONFIG_SPL_I2C_SUPPORT
+               Support for drivers/i2c/libi2c.o in SPL binary
+
+               CONFIG_SPL_GPIO_SUPPORT
+               Support for drivers/gpio/libgpio.o in SPL binary
+
+               CONFIG_SPL_MMC_SUPPORT
+               Support for drivers/mmc/libmmc.o in SPL binary
+
+               CONFIG_SPL_SERIAL_SUPPORT
+               Support for drivers/serial/libserial.o in SPL binary
+
+               CONFIG_SPL_SPI_FLASH_SUPPORT
+               Support for drivers/mtd/spi/libspi_flash.o in SPL binary
+
+               CONFIG_SPL_SPI_SUPPORT
+               Support for drivers/spi/libspi.o in SPL binary
+
+               CONFIG_SPL_FAT_SUPPORT
+               Support for fs/fat/libfat.o in SPL binary
+
+               CONFIG_SPL_LIBGENERIC_SUPPORT
+               Support for lib/libgeneric.o in SPL binary

 
 Modem Support:
 --------------
 
 
 Modem Support:
 --------------
 

-[so far only for SMDK2400 and TRAB boards]
+[so far only for SMDK2400 boards]

 
 - Modem support enable:
                CONFIG_MODEM_SUPPORT
 
 - Modem support enable:
                CONFIG_MODEM_SUPPORT


@@ -2495,6 +2613,11 @@ The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:
 
 of environment data (variable area); in general, we support the
 following configurations:
 

+- CONFIG_BUILD_ENVCRC:
+
+       Builds up envcrc with the target environment so that external utils
+       may easily extract it and embed it in final U-Boot images.
+

 - CONFIG_ENV_IS_IN_FLASH:
 
        Define this if the environment is in flash memory.
 - CONFIG_ENV_IS_IN_FLASH:
 
        Define this if the environment is in flash memory.


@@ -2756,6 +2879,43 @@ Low Level (hardware related) configuration options:
                and RPXsuper) to be able to adjust the position of
                the IMMR register after a reset.
 
                and RPXsuper) to be able to adjust the position of
                the IMMR register after a reset.
 

+- CONFIG_SYS_CCSRBAR_DEFAULT:
+               Default (power-on reset) physical address of CCSR on Freescale
+               PowerPC SOCs.
+
+- CONFIG_SYS_CCSRBAR:
+               Virtual address of CCSR.  On a 32-bit build, this is typically
+               the same value as CONFIG_SYS_CCSRBAR_DEFAULT.
+
+               CONFIG_SYS_DEFAULT_IMMR must also be set to this value,
+               for cross-platform code that uses that macro instead.
+
+- CONFIG_SYS_CCSRBAR_PHYS:
+               Physical address of CCSR.  CCSR can be relocated to a new
+               physical address, if desired.  In this case, this macro should
+               be set to that address.  Otherwise, it should be set to the
+               same value as CONFIG_SYS_CCSRBAR_DEFAULT.  For example, CCSR
+               is typically relocated on 36-bit builds.  It is recommended
+               that this macro be defined via the _HIGH and _LOW macros:
+
+               #define CONFIG_SYS_CCSRBAR_PHYS ((CONFIG_SYS_CCSRBAR_PHYS_HIGH
+                       * 1ull) << 32 | CONFIG_SYS_CCSRBAR_PHYS_LOW)
+
+- CONFIG_SYS_CCSRBAR_PHYS_HIGH:
+               Bits 33-36 of CONFIG_SYS_CCSRBAR_PHYS.  This value is typically
+               either 0 (32-bit build) or 0xF (36-bit build).  This macro is
+               used in assembly code, so it must not contain typecasts or
+               integer size suffixes (e.g. "ULL").
+
+- CONFIG_SYS_CCSRBAR_PHYS_LOW:
+               Lower 32-bits of CONFIG_SYS_CCSRBAR_PHYS.  This macro is
+               used in assembly code, so it must not contain typecasts or
+               integer size suffixes (e.g. "ULL").
+
+- CONFIG_SYS_CCSR_DO_NOT_RELOCATE:
+               If this macro is defined, then CONFIG_SYS_CCSRBAR_PHYS will be
+               forced to a value that ensures that CCSR is not relocated.
+

 - Floppy Disk Support:
                CONFIG_SYS_FDC_DRIVE_NUMBER
 
 - Floppy Disk Support:
                CONFIG_SYS_FDC_DRIVE_NUMBER
 


@@ -2918,6 +3078,14 @@ Low Level (hardware related) configuration options:
 - CONFIG_SYS_SRIOn_MEM_SIZE:
                Size of SRIO port 'n' memory region
 
 - CONFIG_SYS_SRIOn_MEM_SIZE:
                Size of SRIO port 'n' memory region
 

+- CONFIG_SYS_NDFC_16
+               Defined to tell the NDFC that the NAND chip is using a
+               16 bit bus.
+
+- CONFIG_SYS_NDFC_EBC0_CFG
+               Sets the EBC0_CFG register for the NDFC. If not defined
+               a default value will be used.
+

 - CONFIG_SPD_EEPROM
                Get DDR timing information from an I2C EEPROM. Common
                with pluggable memory modules such as SODIMMs
 - CONFIG_SPD_EEPROM
                Get DDR timing information from an I2C EEPROM. Common
                with pluggable memory modules such as SODIMMs


@@ -2930,6 +3098,15 @@ Low Level (hardware related) configuration options:
                one, specify here. Note that the value must resolve
                to something your driver can deal with.
 
                one, specify here. Note that the value must resolve
                to something your driver can deal with.
 

+- CONFIG_SYS_DDR_RAW_TIMING
+               Get DDR timing information from other than SPD. Common with
+               soldered DDR chips onboard without SPD. DDR raw timing
+               parameters are extracted from datasheet and hard-coded into
+               header files or board specific files.
+
+- CONFIG_FSL_DDR_INTERACTIVE
+               Enable interactive DDR debugging. See doc/README.fsl-ddr.
+

 - CONFIG_SYS_83XX_DDR_USES_CS0
                Only for 83xx systems. If specified, then DDR should
                be configured using CS0 and CS1 instead of CS2 and CS3.
 - CONFIG_SYS_83XX_DDR_USES_CS0
                Only for 83xx systems. If specified, then DDR should
                be configured using CS0 and CS1 instead of CS2 and CS3.


@@ -2983,7 +3160,7 @@ Low Level (hardware related) configuration options:
                globally (CONFIG_CMD_MEM).
 
 - CONFIG_SKIP_LOWLEVEL_INIT
                globally (CONFIG_CMD_MEM).
 
 - CONFIG_SKIP_LOWLEVEL_INIT

-               [ARM only] If this variable is defined, then certain
+               [ARM, NDS32, MIPS only] If this variable is defined, then certain

                low level initializations (like setting up the memory
                controller) are omitted and/or U-Boot does not
                relocate itself into RAM.
                low level initializations (like setting up the memory
                controller) are omitted and/or U-Boot does not
                relocate itself into RAM.


@@ -2993,7 +3170,7 @@ Low Level (hardware related) configuration options:
                other boot loader or by a debugger which performs
                these initializations itself.
 
                other boot loader or by a debugger which performs
                these initializations itself.
 

-- CONFIG_PRELOADER
+- CONFIG_SPL_BUILD

                Modifies the behaviour of start.S when compiling a loader
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
                Modifies the behaviour of start.S when compiling a loader
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.


@@ -3281,6 +3458,15 @@ List of environment variables (most likely not complete):
                  This can be used to load and uncompress arbitrary
                  data.
 
                  This can be used to load and uncompress arbitrary
                  data.
 

+  fdt_high     - if set this restricts the maximum address that the
+                 flattened device tree will be copied into upon boot.
+                 If this is set to the special value 0xFFFFFFFF then
+                 the fdt will not be copied at all on boot.  For this
+                 to work it must reside in writable memory, have
+                 sufficient padding on the end of it for u-boot to
+                 add the information it needs into it, and the memory
+                 must be accessible by the kernel.
+

   i2cfast      - (PPC405GP|PPC405EP only)
                  if set to 'y' configures Linux I2C driver for fast
                  mode (400kHZ). This environment variable is used in
   i2cfast      - (PPC405GP|PPC405EP only)
                  if set to 'y' configures Linux I2C driver for fast
                  mode (400kHZ). This environment variable is used in


@@ -3331,12 +3517,10 @@ List of environment variables (most likely not complete):
 
   bootstopkey  - see CONFIG_AUTOBOOT_STOP_STR
 
 
   bootstopkey  - see CONFIG_AUTOBOOT_STOP_STR
 

-  ethprime     - When CONFIG_NET_MULTI is enabled controls which
-                 interface is used first.
+  ethprime     - controls which interface is used first.

 
 

-  ethact       - When CONFIG_NET_MULTI is enabled controls which
-                 interface is currently active. For example you
-                 can do the following
+  ethact       - controls which interface is currently active.
+                 For example you can do the following

 
                  => setenv ethact FEC
                  => ping 192.168.0.1 # traffic sent on FEC
 
                  => setenv ethact FEC
                  => ping 192.168.0.1 # traffic sent on FEC


@@ -3378,6 +3562,25 @@ List of environment variables (most likely not complete):
                  Ethernet is encapsulated/received over 802.1q
                  VLAN tagged frames.
 
                  Ethernet is encapsulated/received over 802.1q
                  VLAN tagged frames.
 

+The following image location variables contain the location of images
+used in booting. The "Image" column gives the role of the image and is
+not an environment variable name. The other columns are environment
+variable names. "File Name" gives the name of the file on a TFTP
+server, "RAM Address" gives the location in RAM the image will be
+loaded to, and "Flash Location" gives the image's address in NOR
+flash or offset in NAND flash.
+
+*Note* - these variables don't have to be defined for all boards, some
+boards currenlty use other variables for these purposes, and some
+boards use these variables for other purposes.
+
+Image               File Name        RAM Address       Flash Location
+-----               ---------        -----------       --------------
+u-boot              u-boot           u-boot_addr_r     u-boot_addr
+Linux kernel        bootfile         kernel_addr_r     kernel_addr
+device tree blob    fdtfile          fdt_addr_r        fdt_addr
+ramdisk             ramdiskfile      ramdisk_addr_r    ramdisk_addr
+

 The following environment variables may be used and automatically
 updated by the network boot commands ("bootp" and "rarpboot"),
 depending the information provided by your boot server:
 The following environment variables may be used and automatically
 updated by the network boot commands ("bootp" and "rarpboot"),
 depending the information provided by your boot server:


@@ -3524,8 +3727,8 @@ details; basically, the header defines the following image properties:
   Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, LynxOS,
   INTEGRITY).
 * Target CPU Architecture (Provisions for Alpha, ARM, AVR32, Intel x86,
   Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, LynxOS,
   INTEGRITY).
 * Target CPU Architecture (Provisions for Alpha, ARM, AVR32, Intel x86,

-  IA64, MIPS, Nios II, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
-  Currently supported: ARM, AVR32, Intel x86, MIPS, Nios II, PowerPC).
+  IA64, MIPS, NDS32, Nios II, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
+  Currently supported: ARM, AVR32, Intel x86, MIPS, NDS32, Nios II, PowerPC).

 * Compression Type (uncompressed, gzip, bzip2)
 * Load Address
 * Entry Point
 * Compression Type (uncompressed, gzip, bzip2)
 * Load Address
 * Entry Point


@@ -4218,6 +4421,20 @@ On Nios II, the ABI is documented here:
     Note: on Nios II, we give "-G0" option to gcc and don't use gp
     to access small data sections, so gp is free.
 
     Note: on Nios II, we give "-G0" option to gcc and don't use gp
     to access small data sections, so gp is free.
 

+On NDS32, the following registers are used:
+
+       R0-R1:  argument/return
+       R2-R5:  argument
+       R15:    temporary register for assembler
+       R16:    trampoline register
+       R28:    frame pointer (FP)
+       R29:    global pointer (GP)
+       R30:    link register (LP)
+       R31:    stack pointer (SP)
+       PC:     program counter (PC)
+
+    ==> U-Boot will use R10 to hold a pointer to the global data
+

 NOTE: DECLARE_GLOBAL_DATA_PTR must be used with file-global scope,
 or current versions of GCC may "optimize" the code too much.
 
 NOTE: DECLARE_GLOBAL_DATA_PTR must be used with file-global scope,
 or current versions of GCC may "optimize" the code too much.
 


@@ -4383,9 +4600,7 @@ Coding Standards:
 
 All contributions to U-Boot should conform to the Linux kernel
 coding style; see the file "Documentation/CodingStyle" and the script
 
 All contributions to U-Boot should conform to the Linux kernel
 coding style; see the file "Documentation/CodingStyle" and the script

-"scripts/Lindent" in your Linux kernel source directory.  In sources
-originating from U-Boot a style corresponding to "Lindent -pcs" (adding
-spaces before parameters to function calls) is actually used.
+"scripts/Lindent" in your Linux kernel source directory.

 
 Source files originating from a different project (for example the
 MTD subsystem) are generally exempt from these guidelines and are not
 
 Source files originating from a different project (for example the
 MTD subsystem) are generally exempt from these guidelines and are not


@@ -4398,9 +4613,9 @@ in your code.
 
 Please also stick to the following formatting rules:
 - remove any trailing white space
 
 Please also stick to the following formatting rules:
 - remove any trailing white space

-- use TAB characters for indentation, not spaces
+- use TAB characters for indentation and vertical alignment, not spaces

 - make sure NOT to use DOS '\r\n' line feeds
 - make sure NOT to use DOS '\r\n' line feeds

-- do not add more than 2 empty lines to source files
+- do not add more than 2 consecutive empty lines to source files

 - do not add trailing empty lines to source files
 
 Submissions which do not conform to the standards may be returned
 - do not add trailing empty lines to source files
 
 Submissions which do not conform to the standards may be returned


@@ -4434,14 +4649,14 @@ it:
 * For major contributions, your entry to the CREDITS file
 
 * When you add support for a new board, don't forget to add this
 * For major contributions, your entry to the CREDITS file
 
 * When you add support for a new board, don't forget to add this

-  board to the MAKEALL script, too.
+  board to the MAINTAINERS file, too.

 
 * If your patch adds new configuration options, don't forget to
   document these in the README file.
 
 * The patch itself. If you are using git (which is *strongly*
   recommended) you can easily generate the patch using the
 
 * If your patch adds new configuration options, don't forget to
   document these in the README file.
 
 * The patch itself. If you are using git (which is *strongly*
   recommended) you can easily generate the patch using the

-  "git-format-patch". If you then use "git-send-email" to send it to
+  "git format-patch". If you then use "git send-email" to send it to

   the U-Boot mailing list, you will avoid most of the common problems
   with some other mail clients.
 
   the U-Boot mailing list, you will avoid most of the common problems
   with some other mail clients.