X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=README;h=78173e2d867054bfeb02438550da166d000912fb;hb=ddbe1812421a7bf7febd1a678efad69546eb04ab;hp=b4dc217142407c53f5a0925c34c13e6ff3d12c16;hpb=bdba2b3a8809501b7073c242f9aa013eb456790d;p=people%2Fms%2Fu-boot.git diff --git a/README b/README index b4dc217142..78173e2d86 100644 --- a/README +++ b/README @@ -127,7 +127,7 @@ releases in "stable" maintenance trees. Examples: U-Boot v2009.11 - Release November 2009 U-Boot v2009.11.1 - Release 1 in version November 2009 stable tree - U-Boot v2010.09-rc1 - Release candiate 1 for September 2010 release + U-Boot v2010.09-rc1 - Release candidate 1 for September 2010 release Directory Hierarchy: @@ -137,7 +137,6 @@ Directory Hierarchy: /arc Files generic to ARC architecture /arm Files generic to ARM architecture /avr32 Files generic to AVR32 architecture - /blackfin Files generic to Analog Devices Blackfin architecture /m68k Files generic to m68k architecture /microblaze Files generic to microblaze architecture /mips Files generic to MIPS architecture @@ -147,7 +146,6 @@ Directory Hierarchy: /powerpc Files generic to PowerPC architecture /sandbox Files generic to HW-independent "sandbox" /sh Files generic to SH architecture - /sparc Files generic to SPARC architecture /x86 Files generic to x86 architecture /api Machine/arch independent API for external apps /board Board dependent files @@ -376,15 +374,6 @@ The following options need to be configured: Defines the string to utilize when trying to match PCIe device tree nodes for the given platform. - CONFIG_SYS_PPC_E500_DEBUG_TLB - - Enables a temporary TLB entry to be used during boot to work - around limitations in e500v1 and e500v2 external debugger - support. This reduces the portions of the boot code where - breakpoints and single stepping do not work. The value of this - symbol should be set to the TLB1 entry to be used for this - purpose. - CONFIG_SYS_FSL_ERRATUM_A004510 Enables a workaround for erratum A004510. If set, @@ -513,6 +502,12 @@ The following options need to be configured: 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_PBL_PBI It enables addition of RCW (Power on reset configuration) in built image. Please refer doc/README.pblimage for more details @@ -595,29 +590,6 @@ The following options need to be configured: Select high exception vectors of the ARM core, e.g., do not clear the V bit of the c1 register of CP15. - CONFIG_SYS_THUMB_BUILD - - Use this flag to build U-Boot using the Thumb instruction - set for ARM architectures. Thumb instruction set provides - better code density. For ARM architectures that support - Thumb2 this flag will result in Thumb2 code generated by - GCC. - - CONFIG_ARM_ERRATA_716044 - CONFIG_ARM_ERRATA_742230 - CONFIG_ARM_ERRATA_743622 - CONFIG_ARM_ERRATA_751472 - CONFIG_ARM_ERRATA_761320 - CONFIG_ARM_ERRATA_773022 - CONFIG_ARM_ERRATA_774769 - CONFIG_ARM_ERRATA_794072 - - If set, the workarounds for these ARM errata are applied early - during U-Boot startup. Note that these options force the - workarounds to be applied; no CPU-type/version detection - exists, unlike the similar options in the Linux kernel. Do not - set these options unless they apply! - COUNTER_FREQUENCY Generic timer clock source frequency. @@ -626,15 +598,6 @@ The following options need to be configured: different from COUNTER_FREQUENCY, and can only be determined at run time. - NOTE: The following can be machine specific errata. These - do have ability to provide rudimentary version and machine - specific checks, but expect no product checks. - CONFIG_ARM_ERRATA_430973 - CONFIG_ARM_ERRATA_454179 - CONFIG_ARM_ERRATA_621766 - CONFIG_ARM_ERRATA_798870 - CONFIG_ARM_ERRATA_801819 - - Tegra SoC options: CONFIG_TEGRA_SUPPORT_NON_SECURE @@ -770,15 +733,6 @@ The following options need to be configured: port routines must be defined elsewhere (i.e. serial_init(), serial_getc(), ...) - When CONFIG_CFB_CONSOLE_ANSI is defined, console will support - a limited number of ANSI escape sequences (cursor control, - erase functions and limited graphics rendition control). - - CONFIG_SYS_CONSOLE_BG_COL: define the backgroundcolor, default - is 0x00. - CONFIG_SYS_CONSOLE_FG_COL: define the foregroundcolor, default - is 0xa0. - - Console Baudrate: CONFIG_BAUDRATE - in bps Select one of the baudrates listed in @@ -869,16 +823,11 @@ The following options need to be configured: CONFIG_CMD_AES AES 128 CBC encrypt/decrypt CONFIG_CMD_ASKENV * ask for env variable CONFIG_CMD_BDI bdinfo - CONFIG_CMD_BEDBUG * Include BedBug Debugger - CONFIG_CMD_BMP * BMP support - CONFIG_CMD_BSP * Board specific commands CONFIG_CMD_BOOTD bootd CONFIG_CMD_BOOTI * ARM64 Linux kernel Image support CONFIG_CMD_CACHE * icache, dcache - CONFIG_CMD_CLK * clock command support 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_DS4510 * ds4510 I2C gpio commands @@ -1475,9 +1424,6 @@ The following options need to be configured: CONFIG_SH_MMCIF_CLK Define the clock frequency for MMCIF - CONFIG_GENERIC_MMC - Enable the generic MMC driver - CONFIG_SUPPORT_EMMC_BOOT Enable some additional features of the eMMC boot partitions. @@ -1598,13 +1544,6 @@ The following options need to be configured: This will also enable the command "fatwrite" enabling the user to write files to FAT. -CBFS (Coreboot Filesystem) support - CONFIG_CMD_CBFS - - Define this to enable support for reading from a Coreboot - filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls - and cbfsload. - - FAT(File Allocation Table) filesystem cluster size: CONFIG_FS_FAT_MAX_CLUSTSIZE @@ -1623,40 +1562,6 @@ CBFS (Coreboot Filesystem) support instead. - Video support: - CONFIG_VIDEO_CT69000 - - Enable Chips & Technologies 69000 Video chip - - CONFIG_VIDEO_SMI_LYNXEM - Enable Silicon Motion SMI 712/710/810 Video chip. The - video output is selected via environment 'videoout' - (1 = LCD and 2 = CRT). If videoout is undefined, CRT is - assumed. - - For the CT69000 and SMI_LYNXEM drivers, videomode is - selected via environment 'videomode'. Two different ways - are possible: - - "videomode=num" 'num' is a standard LiLo mode numbers. - Following standard modes are supported (* is default): - - Colors 640x480 800x600 1024x768 1152x864 1280x1024 - -------------+--------------------------------------------- - 8 bits | 0x301* 0x303 0x305 0x161 0x307 - 15 bits | 0x310 0x313 0x316 0x162 0x319 - 16 bits | 0x311 0x314 0x317 0x163 0x31A - 24 bits | 0x312 0x315 0x318 ? 0x31B - -------------+--------------------------------------------- - (i.e. setenv videomode 317; saveenv; reset;) - - - "videomode=bootargs" all the video parameters are parsed - from the bootargs. (See drivers/video/videomodes.c) - - - CONFIG_VIDEO_SED13806 - Enable Epson SED13806 driver. This driver supports 8bpp - 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 @@ -1664,7 +1569,6 @@ CBFS (Coreboot Filesystem) support CONFIG_SYS_DIU_ADDR CONFIG_VIDEO - CONFIG_CMD_BMP CONFIG_CFB_CONSOLE CONFIG_VIDEO_SW_CURSOR CONFIG_VGA_AS_SINGLE_DEVICE @@ -1725,9 +1629,6 @@ CBFS (Coreboot Filesystem) support 320x240. Black & white. - Normally display is black on white background; define - CONFIG_SYS_WHITE_ON_BLACK to get it inverted. - CONFIG_LCD_ALIGNMENT Normally the LCD is page-aligned (typically 4KB). If this is @@ -1736,12 +1637,6 @@ CBFS (Coreboot Filesystem) support here, since it is cheaper to change data cache settings on a per-section basis. - CONFIG_CONSOLE_SCROLL_LINES - - When the console need to be scrolled, this is the number of - lines to scroll by. It defaults to 1. Increasing this makes - the console jump but can help speed up operation when scrolling - is slow. CONFIG_LCD_ROTATION @@ -1826,12 +1721,6 @@ CBFS (Coreboot Filesystem) support can be displayed via the splashscreen support or the bmp command. -- Do compressing for memory range: - CONFIG_CMD_ZIP - - If this option is set, it would use zlib deflate method - to compress the specified memory at its best effort. - - Compression support: CONFIG_GZIP @@ -2091,7 +1980,7 @@ CBFS (Coreboot Filesystem) support A byte containing the id of the VLAN. -- Status LED: CONFIG_STATUS_LED +- Status LED: CONFIG_LED_STATUS Several configurations allow to display the current status using a LED. For instance, the LED will blink @@ -2099,15 +1988,15 @@ CBFS (Coreboot Filesystem) support soon as a reply to a BOOTP request was received, and start blinking slow once the Linux kernel is running (supported by a status LED driver in the Linux - kernel). Defining CONFIG_STATUS_LED enables this + kernel). Defining CONFIG_LED_STATUS enables this feature in U-Boot. Additional options: - CONFIG_GPIO_LED + CONFIG_LED_STATUS_GPIO The status LED can be connected to a GPIO pin. In such cases, the gpio_led driver can be used as a - status LED backend implementation. Define CONFIG_GPIO_LED + status LED backend implementation. Define CONFIG_LED_STATUS_GPIO to include the gpio_led driver in the U-Boot binary. CONFIG_GPIO_LED_INVERTED_TABLE @@ -2841,19 +2730,6 @@ CBFS (Coreboot Filesystem) support this is instead controlled by the value of /config/load-environment. -- Parallel Flash support: - CONFIG_SYS_NO_FLASH - - Traditionally U-Boot was run on systems with parallel NOR - flash. This option is used to disable support for parallel NOR - flash. This option should be defined if the board does not have - parallel flash. - - If this option is not defined one of the generic flash drivers - (e.g. CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be - selected or the board must provide an implementation of the - flash API (see include/flash.h). - - DataFlash Support: CONFIG_HAS_DATAFLASH @@ -2957,16 +2833,6 @@ CBFS (Coreboot Filesystem) support This enables 'hdmidet' command which returns true if an HDMI monitor is detected. This command is i.MX 6 specific. - CONFIG_CMD_BMODE - This enables the 'bmode' (bootmode) command for forcing - a boot from specific media. - - This is useful for forcing the ROM's usb downloader to - activate upon a watchdog reset which is nice when iterating - on U-Boot. Using the reset button or running bmode normal - will set it back to normal. This command currently - supports i.MX53 and i.MX6. - - bootcount support: CONFIG_BOOTCOUNT_LIMIT @@ -2975,8 +2841,6 @@ CBFS (Coreboot Filesystem) support CONFIG_AT91SAM9XE enable special bootcounter support on at91sam9xe based boards. - CONFIG_BLACKFIN - enable special bootcounter support on blackfin based boards. CONFIG_SOC_DA8XX enable special bootcounter support on da850 based boards. CONFIG_BOOTCOUNT_RAM @@ -3353,10 +3217,6 @@ FIT uImage format: consider that a completely unreadable NAND block is bad, and thus should be skipped silently. - CONFIG_SPL_ABORT_ON_RAW_IMAGE - When defined, SPL will proceed to another boot method - if the image it has loaded does not have a signature. - CONFIG_SPL_RELOC_STACK Adress of the start of the stack SPL will use after relocation. If unspecified, this is equal to @@ -3387,11 +3247,6 @@ FIT uImage format: CONFIG_SPL_INIT_MINIMAL Arch init code should be built for a very small image - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, - CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS, - Address and partition on the MMC to load U-Boot from - when the MMC is being used in raw mode. - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION Partition on the MMC to load U-Boot from when the MMC is being used in raw mode @@ -3576,15 +3431,6 @@ Configuration Settings: - CONFIG_SYS_BAUDRATE_TABLE: List of legal baudrate settings for this board. -- CONFIG_SYS_CONSOLE_INFO_QUIET - Suppress display of console information at boot. - -- CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE - Enable the call to overwrite_console(). - -- CONFIG_SYS_CONSOLE_ENV_OVERWRITE - Enable overwrite of previous console environment settings. - - CONFIG_SYS_MEMTEST_START, CONFIG_SYS_MEMTEST_END: Begin and End addresses of the area used by the simple memory test. @@ -4173,7 +4019,7 @@ but it can not erase, write this NOR flash by SRIO or PCIE interface. Define this to a string that is the name of the block device. - - FAT_ENV_DEV_AND_PART: + - FAT_ENV_DEVICE_AND_PART: Define this to a string to specify the partition of the device. It can be as following: @@ -4656,12 +4502,6 @@ Low Level (hardware related) configuration options: addressable memory. This option causes some memory accesses to be mapped through map_sysmem() / unmap_sysmem(). -- 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. - - CONFIG_X86_RESET_VECTOR If defined, the x86 reset vector code is included. This is not needed when U-Boot is running from Coreboot. @@ -6041,11 +5881,6 @@ For PowerPC, the following registers have specific use: average for all boards 752 bytes for the whole U-Boot image, 624 text + 127 data). -On Blackfin, the normal C ABI (except for P3) is followed as documented here: - http://docs.blackfin.uclinux.org/doku.php?id=application_binary_interface - - ==> U-Boot will use P3 to hold a pointer to the global data - On ARM, the following registers are used: R0: function argument word/integer result