]> git.sur5r.net Git - u-boot/blobdiff - README
omap1510inn: fix build breaks
[u-boot] / README
diff --git a/README b/README
index d7a23cda9a96ea60615a6387c4418be6ab13881d..8bb9c8d6be2a1b4bc50ea6882dcb1e1f12956b0f 100644 (file)
--- a/README
+++ b/README
@@ -1,5 +1,5 @@
 #
 #
-# (C) Copyright 2000 - 2009
+# (C) Copyright 2000 - 2011
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -164,7 +164,7 @@ Directory Hierarchy:
   /blackfin            Files generic to Analog Devices Blackfin architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /blackfin            Files generic to Analog Devices Blackfin architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
-  /i386                        Files generic to i386 architecture
+  /x86                 Files generic to x86 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /m68k                        Files generic to m68k architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /m68k                        Files generic to m68k architecture
@@ -319,6 +319,11 @@ The following options need to be configured:
                        CONFIG_SYS_PQ2FADS      - PQ2FADS-ZU or PQ2FADS-VR
                        CONFIG_SYS_8272ADS      - MPC8272ADS
 
                        CONFIG_SYS_PQ2FADS      - PQ2FADS-ZU or PQ2FADS-VR
                        CONFIG_SYS_8272ADS      - MPC8272ADS
 
+- Marvell Family Member
+               CONFIG_SYS_MVFS         - define it if you want to enable
+                                         multiple fs option at one time
+                                         for marvell soc family
+
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
                Define exactly one of
                CONFIG_MPC8240, CONFIG_MPC8245
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
                Define exactly one of
                CONFIG_MPC8240, CONFIG_MPC8245
@@ -351,6 +356,18 @@ The following options need to be configured:
                Define this option if you want to enable the
                ICache only when Code runs from RAM.
 
                Define this option if you want to enable the
                ICache only when Code runs from RAM.
 
+- 85xx CPU Options:
+               CONFIG_SYS_FSL_TBCLK_DIV
+
+               Defines the core time base clock divider ratio compared to the
+               system clock.  On most PQ3 devices this is 8, on newer QorIQ
+               devices it can be 16 or 32.  The ratio varies from SoC to Soc.
+
+               CONFIG_SYS_FSL_PCIE_COMPAT
+
+               Defines the string to utilize when trying to match PCIe device
+               tree nodes for the given platform.
+
 - Intel Monahans options:
                CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 
 - Intel Monahans options:
                CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 
@@ -463,6 +480,18 @@ The following options need to be configured:
                define this to a list of base addresses for each (supported)
                port. See e.g. include/configs/versatile.h
 
                define this to a list of base addresses for each (supported)
                port. See e.g. include/configs/versatile.h
 
+               CONFIG_PL011_SERIAL_RLCR
+
+               Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
+               have separate receive and transmit line control registers.  Set
+               this variable to initialize the extra register.
+
+               CONFIG_PL011_SERIAL_FLUSH_ON_INIT
+
+               On some platforms (e.g. U8500) U-Boot is loaded by a second stage
+               boot loader that has already initialized the UART.  Define this
+               variable to flush the UART at init time.
+
 
 - Console Interface:
                Depending on board, define exactly one serial port
 
 - Console Interface:
                Depending on board, define exactly one serial port
@@ -620,6 +649,7 @@ The following options need to be configured:
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_CACHE        * icache, dcache
                CONFIG_CMD_CONSOLE        coninfo
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_CACHE        * icache, dcache
                CONFIG_CMD_CONSOLE        coninfo
+               CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DATE         * support for RTC, date/time...
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics
                CONFIG_CMD_DATE         * support for RTC, date/time...
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics
@@ -632,22 +662,27 @@ The following options need to be configured:
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ELF          * bootelf, bootvx
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ELF          * bootelf, bootvx
+               CONFIG_CMD_EXPORTENV    * export the environment
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_FAT          * FAT partition support
                CONFIG_CMD_FDOS         * Dos diskette Support
                CONFIG_CMD_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_FAT          * FAT partition support
                CONFIG_CMD_FDOS         * Dos diskette Support
                CONFIG_CMD_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support
+               CONFIG_CMD_GO           * the 'go' command (exec code)
+               CONFIG_CMD_GREPENV      * search environment
                CONFIG_CMD_HWFLOW       * RTS/CTS hw flow control
                CONFIG_CMD_I2C          * I2C serial bus support
                CONFIG_CMD_IDE          * IDE harddisk support
                CONFIG_CMD_IMI            iminfo
                CONFIG_CMD_IMLS           List all found images
                CONFIG_CMD_IMMAP        * IMMR dump support
                CONFIG_CMD_HWFLOW       * RTS/CTS hw flow control
                CONFIG_CMD_I2C          * I2C serial bus support
                CONFIG_CMD_IDE          * IDE harddisk support
                CONFIG_CMD_IMI            iminfo
                CONFIG_CMD_IMLS           List all found images
                CONFIG_CMD_IMMAP        * IMMR dump support
+               CONFIG_CMD_IMPORTENV    * import an environment
                CONFIG_CMD_IRQ          * irqinfo
                CONFIG_CMD_ITEST          Integer/string test of 2 values
                CONFIG_CMD_JFFS2        * JFFS2 Support
                CONFIG_CMD_KGDB         * kgdb
                CONFIG_CMD_IRQ          * irqinfo
                CONFIG_CMD_ITEST          Integer/string test of 2 values
                CONFIG_CMD_JFFS2        * JFFS2 Support
                CONFIG_CMD_KGDB         * kgdb
+               CONFIG_CMD_LDRINFO        ldrinfo (display Blackfin loader)
                CONFIG_CMD_LOADB          loadb
                CONFIG_CMD_LOADS          loads
                CONFIG_CMD_MD5SUM         print md5 message digest
                CONFIG_CMD_LOADB          loadb
                CONFIG_CMD_LOADS          loads
                CONFIG_CMD_MD5SUM         print md5 message digest
@@ -675,10 +710,11 @@ The following options need to be configured:
                                          (requires CONFIG_CMD_I2C)
                CONFIG_CMD_SETGETDCR      Support for DCR Register access
                                          (4xx only)
                                          (requires CONFIG_CMD_I2C)
                CONFIG_CMD_SETGETDCR      Support for DCR Register access
                                          (4xx only)
-               CONFIG_CMD_SHA1           print sha1 memory digest
+               CONFIG_CMD_SHA1SUM        print sha1 memory digest
                                          (requires CONFIG_CMD_MEMORY)
                CONFIG_CMD_SOURCE         "source" command Support
                CONFIG_CMD_SPI          * SPI serial bus support
                                          (requires CONFIG_CMD_MEMORY)
                CONFIG_CMD_SOURCE         "source" command Support
                CONFIG_CMD_SPI          * SPI serial bus support
+               CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_VFD          * VFD support (TRAB)
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_VFD          * VFD support (TRAB)
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
@@ -709,10 +745,17 @@ The following options need to be configured:
 - Watchdog:
                CONFIG_WATCHDOG
                If this variable is defined, it enables watchdog
 - Watchdog:
                CONFIG_WATCHDOG
                If this variable is defined, it enables watchdog
-               support. There must be support in the platform specific
-               code for a watchdog. For the 8xx and 8260 CPUs, the
-               SIU Watchdog feature is enabled in the SYPCR
-               register.
+               support for the SoC. There must be support in the SoC
+               specific code for a watchdog. For the 8xx and 8260
+               CPUs, the SIU Watchdog feature is enabled in the SYPCR
+               register.  When supported for a specific SoC is
+               available, then no further board specific code should
+               be needed to use it.
+
+               CONFIG_HW_WATCHDOG
+               When using a watchdog circuitry external to the used
+               SoC, then define this variable and provide board
+               specific code for the "hw_watchdog_reset" function.
 
 - U-Boot Version:
                CONFIG_VERSION_VARIABLE
 
 - U-Boot Version:
                CONFIG_VERSION_VARIABLE
@@ -738,6 +781,8 @@ The following options need to be configured:
                CONFIG_RTC_ISL1208      - use Intersil ISL1208 RTC
                CONFIG_RTC_MAX6900      - use Maxim, Inc. MAX6900 RTC
                CONFIG_SYS_RTC_DS1337_NOOSC     - Turn off the OSC output for DS1337
                CONFIG_RTC_ISL1208      - use Intersil ISL1208 RTC
                CONFIG_RTC_MAX6900      - use Maxim, Inc. MAX6900 RTC
                CONFIG_SYS_RTC_DS1337_NOOSC     - Turn off the OSC output for DS1337
+               CONFIG_SYS_RV3029_TCR   - enable trickle charger on
+                                         RV3029 RTC.
 
                Note that if the RTC uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
 
                Note that if the RTC uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
@@ -746,6 +791,10 @@ The following options need to be configured:
                CONFIG_PCA953X          - use NXP's PCA953X series I2C GPIO
                CONFIG_PCA953X_INFO     - enable pca953x info command
 
                CONFIG_PCA953X          - use NXP's PCA953X series I2C GPIO
                CONFIG_PCA953X_INFO     - enable pca953x info command
 
+               The CONFIG_SYS_I2C_PCA953X_WIDTH option specifies a list of
+               chip-ngpio pairs that tell the PCA953X driver the number of
+               pins supported by a particular chip.
+
                Note that if the GPIO device uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
 
                Note that if the GPIO device uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
 
@@ -888,6 +937,18 @@ The following options need to be configured:
                        automatically converts one 32 bit word to two 16 bit
                        words you may also try CONFIG_SMC911X_32_BIT.
 
                        automatically converts one 32 bit word to two 16 bit
                        words you may also try CONFIG_SMC911X_32_BIT.
 
+               CONFIG_SH_ETHER
+               Support for Renesas on-chip Ethernet controller
+
+                       CONFIG_SH_ETHER_USE_PORT
+                       Define the number of ports to be used
+
+                       CONFIG_SH_ETHER_PHY_ADDR
+                       Define the ETH PHY's address
+
+                       CONFIG_SH_ETHER_CACHE_WRITEBACK
+                       If this option is set, the driver enables cache flush.
+
 - USB Support:
                At the moment only the UHCI host controller is
                supported (PIP405, MIP405, MPC5200); define
 - USB Support:
                At the moment only the UHCI host controller is
                supported (PIP405, MIP405, MPC5200); define
@@ -1053,6 +1114,25 @@ The following options need to be configured:
                and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
                or CONFIG_VIDEO_SED13806_16BPP
 
                and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
                or CONFIG_VIDEO_SED13806_16BPP
 
+               CONFIG_FSL_DIU_FB
+               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:
+
+                       CONFIG_SYS_DIU_ADDR
+                       CONFIG_VIDEO
+                       CONFIG_CMD_BMP
+                       CONFIG_CFB_CONSOLE
+                       CONFIG_VIDEO_SW_CURSOR
+                       CONFIG_VGA_AS_SINGLE_DEVICE
+                       CONFIG_VIDEO_LOGO
+                       CONFIG_VIDEO_BMP_LOGO
+
+               The DIU driver will look for the 'video-mode' environment
+               variable, and if defined, enable the DIU as a console during
+               boot.  See the documentation file README.video for a
+               description of this variable.
+
 - Keyboard Support:
                CONFIG_KEYBOARD
 
 - Keyboard Support:
                CONFIG_KEYBOARD
 
@@ -1255,7 +1335,6 @@ The following options need to be configured:
                driver in use must provide a function: mcast() to join/leave a
                multicast group.
 
                driver in use must provide a function: mcast() to join/leave a
                multicast group.
 
-               CONFIG_BOOTP_RANDOM_DELAY
 - BOOTP Recovery Mode:
                CONFIG_BOOTP_RANDOM_DELAY
 
 - BOOTP Recovery Mode:
                CONFIG_BOOTP_RANDOM_DELAY
 
@@ -1644,6 +1723,11 @@ The following options need to be configured:
                SPI EEPROM, also an instance works with Crystal A/D and
                D/As on the SACSng board)
 
                SPI EEPROM, also an instance works with Crystal A/D and
                D/As on the SACSng board)
 
+               CONFIG_SH_SPI
+
+               Enables the driver for SPI controller on SuperH. Currently
+               only SH7757 is supported.
+
                CONFIG_SPI_X
 
                Enables extended (16-bit) SPI EEPROM addressing.
                CONFIG_SPI_X
 
                Enables extended (16-bit) SPI EEPROM addressing.
@@ -1948,6 +2032,28 @@ 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
@@ -2285,7 +2391,10 @@ Configuration Settings:
                used) must be put below this limit, unless "bootm_low"
                enviroment variable is defined and non-zero. In such case
                all data for the Linux kernel must be between "bootm_low"
                used) must be put below this limit, unless "bootm_low"
                enviroment variable is defined and non-zero. In such case
                all data for the Linux kernel must be between "bootm_low"
-               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.
+               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.  The environment
+               variable "bootm_mapsize" will override the value of
+               CONFIG_SYS_BOOTMAPSZ.  If CONFIG_SYS_BOOTMAPSZ is undefined,
+               then the value in "bootm_size" will be used instead.
 
 - CONFIG_SYS_BOOT_RAMDISK_HIGH:
                Enable initrd_high functionality.  If defined then the
 
 - CONFIG_SYS_BOOT_RAMDISK_HIGH:
                Enable initrd_high functionality.  If defined then the
@@ -2673,6 +2782,14 @@ Low Level (hardware related) configuration options:
                source code. It is used to make hardware dependant
                initializations.
 
                source code. It is used to make hardware dependant
                initializations.
 
+- CONFIG_IDE_AHB:
+               Most IDE controllers were designed to be connected with PCI
+               interface. Only few of them were designed for AHB interface.
+               When software is doing ATA command and data transfer to
+               IDE devices through IDE-AHB controller, some additional
+               registers accessing to these kind of IDE-AHB controller
+               is requierd.
+
 - CONFIG_SYS_IMMR:     Physical address of the Internal Memory.
                DO NOT CHANGE unless you know exactly what you're
                doing! (11-4) [MPC8xx/82xx systems only]
 - CONFIG_SYS_IMMR:     Physical address of the Internal Memory.
                DO NOT CHANGE unless you know exactly what you're
                doing! (11-4) [MPC8xx/82xx systems only]
@@ -2783,6 +2900,24 @@ Low Level (hardware related) configuration options:
                Disable PCI-Express on systems where it is supported but not
                required.
 
                Disable PCI-Express on systems where it is supported but not
                required.
 
+- CONFIG_SYS_SRIO:
+               Chip has SRIO or not
+
+- CONFIG_SRIO1:
+               Board has SRIO 1 port available
+
+- CONFIG_SRIO2:
+               Board has SRIO 2 port available
+
+- CONFIG_SYS_SRIOn_MEM_VIRT:
+               Virtual Address of SRIO port 'n' memory region
+
+- CONFIG_SYS_SRIOn_MEM_PHYS:
+               Physical Address of SRIO port 'n' memory region
+
+- CONFIG_SYS_SRIOn_MEM_SIZE:
+               Size of SRIO port 'n' memory region
+
 - 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
@@ -2863,6 +2998,12 @@ Low Level (hardware related) configuration options:
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
+- CONFIG_USE_ARCH_MEMCPY
+  CONFIG_USE_ARCH_MEMSET
+               If these options are used a optimized version of memcpy/memset will
+               be used if available. These functions may be faster under some
+               conditions but may increase the binary size.
+
 Building the Software:
 ======================
 
 Building the Software:
 ======================
 
@@ -3103,7 +3244,16 @@ List of environment variables (most likely not complete):
                  for use by the bootm command. See also "bootm_size"
                  environment variable. Address defined by "bootm_low" is
                  also the base of the initial memory mapping for the Linux
                  for use by the bootm command. See also "bootm_size"
                  environment variable. Address defined by "bootm_low" is
                  also the base of the initial memory mapping for the Linux
-                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ.
+                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
+                 bootm_mapsize.
+
+  bootm_mapsize        - Size of the initial memory mapping for the Linux kernel.
+                 This variable is given as a hexadecimal number and it
+                 defines the size of the memory region starting at base
+                 address bootm_low that is accessible by the Linux kernel
+                 during early boot.  If unset, CONFIG_SYS_BOOTMAPSZ is used
+                 as the default value if it is defined, and bootm_size is
+                 used otherwise.
 
   bootm_size   - Memory range available for image processing in the bootm
                  command can be restricted. This variable is given as
 
   bootm_size   - Memory range available for image processing in the bootm
                  command can be restricted. This variable is given as