vbe: Drop the U-Boot prefix from the version

[platform/kernel/u-boot.git] / README

diff --git a/README b/README
index 1362a96..ec1b50c 100644 (file)
--- a/README
+++ b/README
@@ -166,27 +166,6 @@ Directory Hierarchy:
 Software Configuration:
 =======================
 
 Software Configuration:
 =======================
 

-Configuration is usually done using C preprocessor defines; the
-rationale behind that is to avoid dead code whenever possible.
-
-There are two classes of configuration variables:
-
-* Configuration _OPTIONS_:
-  These are selectable by the user and have names beginning with
-  "CONFIG_".
-
-* Configuration _SETTINGS_:
-  These depend on the hardware etc. and should not be meddled with if
-  you don't know what you're doing; they have names beginning with
-  "CONFIG_SYS_".
-
-Previously, all configuration was done by hand, which involved creating
-symbolic links and editing configuration files manually. More recently,
-U-Boot has added the Kbuild infrastructure used by the Linux kernel,
-allowing you to use the "make menuconfig" command to configure your
-build.
-
-

 Selection of Processor Architecture and Board Type:
 ---------------------------------------------------
 
 Selection of Processor Architecture and Board Type:
 ---------------------------------------------------
 


@@ -315,17 +294,6 @@ The following options need to be configured:
                the "64" category of the Power ISA). This is necessary for ePAPR
                compliance, among other possible reasons.
 
                the "64" category of the Power ISA). This is necessary for ePAPR
                compliance, among other possible reasons.
 

-               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.
-

                CONFIG_SYS_FSL_ERRATUM_A004510
 
                Enables a workaround for erratum A004510.  If set,
                CONFIG_SYS_FSL_ERRATUM_A004510
 
                Enables a workaround for erratum A004510.  If set,


@@ -351,35 +319,12 @@ The following options need to be configured:
                This is the value to write into CCSR offset 0x18600
                according to the A004510 workaround.
 
                This is the value to write into CCSR offset 0x18600
                according to the A004510 workaround.
 

-               CONFIG_SYS_FSL_DSP_DDR_ADDR
-               This value denotes start offset of DDR memory which is
-               connected exclusively to the DSP cores.
-
-               CONFIG_SYS_FSL_DSP_M2_RAM_ADDR
-               This value denotes start offset of M2 memory
-               which is directly connected to the DSP core.
-
-               CONFIG_SYS_FSL_DSP_M3_RAM_ADDR
-               This value denotes start offset of M3 memory which is directly
-               connected to the DSP core.
-
-               CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
-               This value denotes start offset of DSP CCSR space.
-

                CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
                Single Source Clock is clocking mode present in some of FSL SoC's.
                In this mode, a single differential clock is used to supply
                clocks to the sysclock, ddrclock and usbclock.
 
                CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
                Single Source Clock is clocking mode present in some of FSL SoC's.
                In this mode, a single differential clock is used to supply
                clocks to the sysclock, ddrclock and usbclock.
 

-               CONFIG_SYS_CPC_REINIT_F
-               This CONFIG is defined when the CPC is configured as SRAM at the
-               time of U-Boot entry and is required to be re-initialized.
-

 - Generic CPU options:
 - Generic CPU options:

-               CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
-
-               Defines the endianess of the CPU. Implementation of those
-               values is arch specific.

 
                CONFIG_SYS_FSL_DDR
                Freescale DDR driver in use. This type of DDR controller is
 
                CONFIG_SYS_FSL_DDR
                Freescale DDR driver in use. This type of DDR controller is


@@ -388,83 +333,17 @@ The following options need to be configured:
                CONFIG_SYS_FSL_DDR_ADDR
                Freescale DDR memory-mapped register base.
 
                CONFIG_SYS_FSL_DDR_ADDR
                Freescale DDR memory-mapped register base.
 

-               CONFIG_SYS_FSL_DDR_EMU
-               Specify emulator support for DDR. Some DDR features such as
-               deskew training are not available.
-
-               CONFIG_SYS_FSL_DDRC_GEN1
-               Freescale DDR1 controller.
-
-               CONFIG_SYS_FSL_DDRC_GEN2
-               Freescale DDR2 controller.
-
-               CONFIG_SYS_FSL_DDRC_GEN3
-               Freescale DDR3 controller.
-
-               CONFIG_SYS_FSL_DDRC_GEN4
-               Freescale DDR4 controller.
-
-               CONFIG_SYS_FSL_DDRC_ARM_GEN3
-               Freescale DDR3 controller for ARM-based SoCs.
-
-               CONFIG_SYS_FSL_DDR1
-               Board config to use DDR1. It can be enabled for SoCs with
-               Freescale DDR1 or DDR2 controllers, depending on the board
-               implemetation.
-
-               CONFIG_SYS_FSL_DDR2
-               Board config to use DDR2. It can be enabled for SoCs with
-               Freescale DDR2 or DDR3 controllers, depending on the board
-               implementation.
-
-               CONFIG_SYS_FSL_DDR3
-               Board config to use DDR3. It can be enabled for SoCs with
-               Freescale DDR3 or DDR3L controllers.
-
-               CONFIG_SYS_FSL_DDR3L
-               Board config to use DDR3L. It can be enabled for SoCs with
-               DDR3L controllers.
-
-               CONFIG_SYS_FSL_IFC_BE
-               Defines the IFC controller register space as Big Endian
-
-               CONFIG_SYS_FSL_IFC_LE
-               Defines the IFC controller register space as Little Endian
-

                CONFIG_SYS_FSL_IFC_CLK_DIV
                Defines divider of platform clock(clock input to IFC controller).
 
                CONFIG_SYS_FSL_LBC_CLK_DIV
                Defines divider of platform clock(clock input to eLBC controller).
 
                CONFIG_SYS_FSL_IFC_CLK_DIV
                Defines divider of platform clock(clock input to IFC controller).
 
                CONFIG_SYS_FSL_LBC_CLK_DIV
                Defines divider of platform clock(clock input to eLBC controller).
 

-               CONFIG_SYS_FSL_DDR_BE
-               Defines the DDR controller register space as Big Endian
-
-               CONFIG_SYS_FSL_DDR_LE
-               Defines the DDR controller register space as Little Endian
-

                CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY
                Physical address from the view of DDR controllers. It is the
                same as CONFIG_SYS_DDR_SDRAM_BASE for  all Power SoCs. But
                it could be different for ARM SoCs.
 
                CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY
                Physical address from the view of DDR controllers. It is the
                same as CONFIG_SYS_DDR_SDRAM_BASE for  all Power SoCs. But
                it could be different for ARM SoCs.
 

-               CONFIG_SYS_FSL_DDR_INTLV_256B
-               DDR controller interleaving on 256-byte. This is a special
-               interleaving mode, handled by Dickens for Freescale layerscape
-               SoCs with ARM core.
-
-               CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS
-               Number of controllers used as main memory.
-
-               CONFIG_SYS_FSL_OTHER_DDR_NUM_CTRLS
-               Number of controllers used for other than main memory.
-
-               CONFIG_SYS_FSL_SEC_BE
-               Defines the SEC controller register space as Big Endian
-
-               CONFIG_SYS_FSL_SEC_LE
-               Defines the SEC controller register space as Little Endian
-

 - MIPS CPU options:
                CONFIG_XWAY_SWAP_BYTES
 
 - MIPS CPU options:
                CONFIG_XWAY_SWAP_BYTES
 


@@ -536,8 +415,6 @@ The following options need to be configured:
                the defaults discussed just above.
 
 - Cache Configuration for ARM:
                the defaults discussed just above.
 
 - 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
 
                CONFIG_SYS_PL310_BASE - Physical base address of PL310
                                        controller register space
 


@@ -686,20 +563,6 @@ The following options need to be configured:
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 

-               CONFIG_SMC91111
-               Support for SMSC's LAN91C111 chip
-
-                       CONFIG_SMC91111_BASE
-                       Define this to hold the physical address
-                       of the device (I/O space)
-
-                       CONFIG_SMC_USE_32_BIT
-                       Define this if data bus is 32 bits
-
-                       CONFIG_SMC_USE_IOFUNCS
-                       Define this to use i/o functions instead of macros
-                       (some hardware wont work with macros)
-

                        CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
                        Define this if you have more then 3 PHYs.
 
                        CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
                        Define this if you have more then 3 PHYs.
 


@@ -854,13 +717,6 @@ The following options need to be configured:
                the appropriate value in Hz.
 
 - MMC Support:
                the appropriate value in Hz.
 
 - MMC Support:

-               The MMC controller on the Intel PXA is supported. To
-               enable this define CONFIG_MMC. The MMC can be
-               accessed from the boot prompt by mapping the device
-               to physical memory similar to flash. Command line is
-               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
                Support for Renesas on-chip MMCIF controller
 


@@ -914,80 +770,6 @@ The following options need to be configured:
 - Keyboard Support:
                See Kconfig help for available keyboard drivers.
 
 - Keyboard Support:
                See Kconfig help for available keyboard drivers.
 

-- LCD Support: CONFIG_LCD
-
-               Define this to enable LCD support (for output to LCD
-               display); also select one of the supported displays
-               by defining one of these:
-
-               CONFIG_NEC_NL6448AC33:
-
-                       NEC NL6448AC33-18. Active, color, single scan.
-
-               CONFIG_NEC_NL6448BC20
-
-                       NEC NL6448BC20-08. 6.5", 640x480.
-                       Active, color, single scan.
-
-               CONFIG_NEC_NL6448BC33_54
-
-                       NEC NL6448BC33-54. 10.4", 640x480.
-                       Active, color, single scan.
-
-               CONFIG_SHARP_16x9
-
-                       Sharp 320x240. Active, color, single scan.
-                       It isn't 16x9, and I am not sure what it is.
-
-               CONFIG_SHARP_LQ64D341
-
-                       Sharp LQ64D341 display, 640x480.
-                       Active, color, single scan.
-
-               CONFIG_HLD1045
-
-                       HLD1045 display, 640x480.
-                       Active, color, single scan.
-
-               CONFIG_OPTREX_BW
-
-                       Optrex   CBL50840-2 NF-FW 99 22 M5
-                       or
-                       Hitachi  LMG6912RPFC-00T
-                       or
-                       Hitachi  SP14Q002
-
-                       320x240. Black & white.
-
-               CONFIG_LCD_ALIGNMENT
-
-               Normally the LCD is page-aligned (typically 4KB). If this is
-               defined then the LCD will be aligned to this value instead.
-               For ARM it is sometimes useful to use MMU_SECTION_SIZE
-               here, since it is cheaper to change data cache settings on
-               a per-section basis.
-
-
-               CONFIG_LCD_ROTATION
-
-               Sometimes, for example if the display is mounted in portrait
-               mode or even if it's mounted landscape but rotated by 180degree,
-               we need to rotate our content of the display relative to the
-               framebuffer, so that user can read the messages which are
-               printed out.
-               Once CONFIG_LCD_ROTATION is defined, the lcd_console will be
-               initialized with a given rotation from "vl_rot" out of
-               "vidinfo_t" which is provided by the board specific code.
-               The value for vl_rot is coded as following (matching to
-               fbcon=rotate:<n> linux-kernel commandline):
-               0 = no rotation respectively 0 degree
-               1 = 90 degree rotation
-               2 = 180 degree rotation
-               3 = 270 degree rotation
-
-               If CONFIG_LCD_ROTATION is not defined, the console will be
-               initialized with 0degree rotation.
-

 - MII/PHY support:
                CONFIG_PHY_CLOCK_FREQ (ppc4xx)
 
 - MII/PHY support:
                CONFIG_PHY_CLOCK_FREQ (ppc4xx)
 


@@ -1306,11 +1088,6 @@ The following options need to be configured:
 
                will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
 
 
                will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
 

-               CONFIG_SYS_SPD_BUS_NUM
-
-               If defined, then this indicates the I2C bus number for DDR SPD.
-               If not defined, then U-Boot assumes that SPD is on I2C bus 0.
-

                CONFIG_SYS_RTC_BUS_NUM
 
                If defined, then this indicates the I2C bus number for the RTC.
                CONFIG_SYS_RTC_BUS_NUM
 
                If defined, then this indicates the I2C bus number for the RTC.


@@ -1350,14 +1127,6 @@ The following options need to be configured:
                Enables support for FPGA family.
                (SPARTAN2, SPARTAN3, VIRTEX2, CYCLONE2, ACEX1K, ACEX)
 
                Enables support for FPGA family.
                (SPARTAN2, SPARTAN3, VIRTEX2, CYCLONE2, ACEX1K, ACEX)
 

-               CONFIG_FPGA_COUNT
-
-               Specify the number of FPGA devices to support.
-
-               CONFIG_SYS_FPGA_PROG_FEEDBACK
-
-               Enable printing of hash marks during FPGA configuration.
-

                CONFIG_SYS_FPGA_CHECK_BUSY
 
                Enable checks on FPGA configuration interface busy
                CONFIG_SYS_FPGA_CHECK_BUSY
 
                Enable checks on FPGA configuration interface busy


@@ -1370,9 +1139,6 @@ The following options need to be configured:
                If defined, a function that provides delays in the FPGA
                configuration driver.
 
                If defined, a function that provides delays in the FPGA
                configuration driver.
 

-               CONFIG_SYS_FPGA_CHECK_CTRLC
-               Allow Control-C to interrupt FPGA configuration
-

                CONFIG_SYS_FPGA_CHECK_ERROR
 
                Check for configuration errors during FPGA bitfile
                CONFIG_SYS_FPGA_CHECK_ERROR
 
                Check for configuration errors during FPGA bitfile


@@ -1522,20 +1288,6 @@ The following options need to be configured:
                overwriting the architecture dependent default
                settings.
 
                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.  This is typically the case
-               when using a graphics controller has separate video
-               memory.  U-Boot will then place the frame buffer at
-               the given address instead of dynamically reserving it
-               in system RAM by calling lcd_setmem(), which grabs
-               the memory for the frame buffer depending on the
-               configured panel 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


@@ -1774,12 +1526,6 @@ Configuration Settings:
 
                Non-cached memory is only supported on 32-bit ARM at present.
 
 
                Non-cached memory is only supported on 32-bit ARM at present.
 

-- CONFIG_SYS_BOOTM_LEN:
-               Normally compressed uImages are limited to an
-               uncompressed size of 8 MBytes. If this is not enough,
-               you can define CONFIG_SYS_BOOTM_LEN in your board config file
-               to adjust this setting to your needs.
-

 - CONFIG_SYS_BOOTMAPSZ:
                Maximum size of memory mapped by the startup code of
                the Linux kernel; all data that must be processed by
 - CONFIG_SYS_BOOTMAPSZ:
                Maximum size of memory mapped by the startup code of
                the Linux kernel; all data that must be processed by


@@ -1792,11 +1538,6 @@ Configuration Settings:
                CONFIG_SYS_BOOTMAPSZ.  If CONFIG_SYS_BOOTMAPSZ is undefined,
                then the value in "bootm_size" will be used instead.
 
                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
-               initrd_high feature is enabled and the bootm ramdisk subcommand
-               is enabled.
-

 - CONFIG_SYS_BOOT_GET_CMDLINE:
                Enables allocating and saving kernel cmdline in space between
                "bootm_low" and "bootm_low" + BOOTMAPSZ.
 - CONFIG_SYS_BOOT_GET_CMDLINE:
                Enables allocating and saving kernel cmdline in space between
                "bootm_low" and "bootm_low" + BOOTMAPSZ.


@@ -1805,38 +1546,10 @@ Configuration Settings:
                Enables allocating and saving a kernel copy of the bd_info in
                space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
 
                Enables allocating and saving a kernel copy of the bd_info in
                space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
 

-- CONFIG_SYS_MAX_FLASH_SECT:
-               Max number of sectors on a Flash chip
-
-- CONFIG_SYS_FLASH_ERASE_TOUT:
-               Timeout for Flash erase operations (in ms)
-
-- CONFIG_SYS_FLASH_WRITE_TOUT:
-               Timeout for Flash write operations (in ms)
-
-- CONFIG_SYS_FLASH_LOCK_TOUT
-               Timeout for Flash set sector lock bit operation (in ms)
-
-- CONFIG_SYS_FLASH_UNLOCK_TOUT
-               Timeout for Flash clear lock bits operation (in ms)
-

 - CONFIG_SYS_FLASH_PROTECTION
                If defined, hardware flash sectors protection is used
                instead of U-Boot software protection.
 
 - CONFIG_SYS_FLASH_PROTECTION
                If defined, hardware flash sectors protection is used
                instead of U-Boot software protection.
 

-- CONFIG_SYS_DIRECT_FLASH_TFTP:
-
-               Enable TFTP transfers directly to flash memory;
-               without this option such a download has to be
-               performed in two steps: (1) download to RAM, and (2)
-               copy from RAM to flash.
-
-               The two-step approach is usually more reliable, since
-               you can check if the download worked before you erase
-               the flash, but in some situations (when system RAM is
-               too limited to allow for a temporary copy of the
-               downloaded image) this option may be very useful.
-

 - CONFIG_SYS_FLASH_CFI:
                Define if the flash driver uses extra elements in the
                common flash structure for storing flash geometry.
 - CONFIG_SYS_FLASH_CFI:
                Define if the flash driver uses extra elements in the
                common flash structure for storing flash geometry.


@@ -1857,12 +1570,6 @@ Configuration Settings:
                s29ws-n MirrorBit flash has non-standard addresses for buffered
                write commands.
 
                s29ws-n MirrorBit flash has non-standard addresses for buffered
                write commands.
 

-- CONFIG_SYS_FLASH_QUIET_TEST
-               If this option is defined, the common CFI flash doesn't
-               print it's warning upon not recognized FLASH banks. This
-               is useful, if some of the configured banks are only
-               optionally available.
-

 - CONFIG_FLASH_SHOW_PROGRESS
                If defined (must be an integer), print out countdown
                digits and dots.  Recommended value: 45 (9..1) for 80
 - CONFIG_FLASH_SHOW_PROGRESS
                If defined (must be an integer), print out countdown
                digits and dots.  Recommended value: 45 (9..1) for 80


@@ -1877,14 +1584,6 @@ Configuration Settings:
                while unprotecting/erasing/programming. Please only enable
                this option if you really know what you are doing.
 
                while unprotecting/erasing/programming. Please only enable
                this option if you really know what you are doing.
 

-- CONFIG_ENV_MAX_ENTRIES
-
-       Maximum number of entries in the hash table that is used
-       internally to store the environment settings. The default
-       setting is supposed to be generous and should work in most
-       cases. This setting can be used to tune behaviour; see
-       lib/hashtable.c for details.
-

 - CONFIG_ENV_FLAGS_LIST_DEFAULT
 - CONFIG_ENV_FLAGS_LIST_STATIC
        Enable validation of the values given to environment variables when
 - CONFIG_ENV_FLAGS_LIST_DEFAULT
 - CONFIG_ENV_FLAGS_LIST_STATIC
        Enable validation of the values given to environment variables when


@@ -2100,12 +1799,6 @@ 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_FSL_DDR_INTERACTIVE
                Enable interactive DDR debugging. See doc/README.fsl-ddr.
 


@@ -2115,10 +1808,6 @@ Low Level (hardware related) configuration options:
 - CONFIG_FSL_DDR_BIST
                Enable built-in memory test for Freescale DDR controllers.
 
 - CONFIG_FSL_DDR_BIST
                Enable built-in memory test for Freescale DDR controllers.
 

-- 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_RMII
                Enable RMII mode for all FECs.
                Note that this is a global option, we can't
 - CONFIG_RMII
                Enable RMII mode for all FECs.
                Note that this is a global option, we can't