X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=README;h=c3a9dfc4f0b3851580818217703882dc30e7f0c1;hp=517b0b4499da94b515de347a70d808ad22f7a178;hb=2db8c2d61a05bb4a94bb341329c6de811757c111;hpb=7f14fb20f895016fb38d30ce71aeb4d441b5bcb8 diff --git a/README b/README index 517b0b4499..c3a9dfc4f0 100644 --- a/README +++ b/README @@ -272,7 +272,7 @@ board. This allows feature development which is not board- or architecture- specific to be undertaken on a native platform. The sandbox is also used to run some of U-Boot's tests. -See board/sandbox/sandbox/README.sandbox for more details. +See board/sandbox/README.sandbox for more details. Configuration Options: @@ -538,6 +538,18 @@ The following options need to be configured: 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 + - Intel Monahans options: CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO @@ -611,13 +623,6 @@ The following options need to be configured: exists, unlike the similar options in the Linux kernel. Do not set these options unless they apply! -- CPU timer options: - CONFIG_SYS_HZ - - The frequency of the timer returned by get_timer(). - get_timer() must operate in milliseconds and this CONFIG - option must be set to 1000. - - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ @@ -959,6 +964,7 @@ The following options need to be configured: 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 @@ -1452,6 +1458,9 @@ The following options need to be configured: CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the txfilltuning field in the EHCI controller on reset. + CONFIG_USB_DWC2_REG_ADDR the physical CPU address of the DWC2 + HW module registers. + - USB Device: Define the below if you wish to use the USB console. Once firmware is rebuilt from a serial console issue the @@ -1628,6 +1637,16 @@ The following options need to be configured: downloads. This buffer should be as large as possible for a platform. Define this to the size available RAM for fastboot. + CONFIG_FASTBOOT_FLASH + The fastboot protocol includes a "flash" command for writing + the downloaded image to a non-volatile storage device. Define + this to enable the "fastboot flash" command. + + CONFIG_FASTBOOT_FLASH_MMC_DEV + The fastboot "flash" command requires additional information + regarding the non-volatile storage device. Define this to + the eMMC device that fastboot should use to store the image. + - Journaling Flash filesystem support: CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE, CONFIG_JFFS2_NAND_DEV @@ -2699,6 +2718,14 @@ CBFS (Coreboot Filesystem) support 200 ms. - Configuration Management: + CONFIG_BUILD_TARGET + + Some SoCs need special image types (e.g. U-Boot binary + with a special header) as build targets. By defining + CONFIG_BUILD_TARGET in the SoC / board header, this + special image will be automatically built upon calling + make / MAKEALL. + CONFIG_IDENT_STRING If defined, this string will be added to the U-Boot @@ -2807,10 +2834,6 @@ CBFS (Coreboot Filesystem) support Enable auto completion of commands using TAB. - Note that this feature has NOT been implemented yet - for the "hush" shell. - - CONFIG_SYS_HUSH_PARSER Define this variable to enable the "hush" shell (from @@ -3524,7 +3547,7 @@ FIT uImage format: CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS, - CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION + CONFIG_SYS_MMC_SD_FS_BOOT_PARTITION Address, size and partition on the MMC to load U-Boot from when the MMC is being used in raw mode. @@ -3541,16 +3564,19 @@ FIT uImage format: CONFIG_SPL_FAT_SUPPORT Support for fs/fat/libfat.o in SPL binary - CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME - Filename to read to load U-Boot when reading from FAT + CONFIG_SPL_EXT_SUPPORT + Support for EXT filesystem in SPL binary - CONFIG_SPL_FAT_LOAD_KERNEL_NAME + CONFIG_SPL_FS_LOAD_PAYLOAD_NAME + Filename to read to load U-Boot when reading from filesystem + + CONFIG_SPL_FS_LOAD_KERNEL_NAME Filename to read to load kernel uImage when reading - from FAT (for Falcon mode) + from filesystem (for Falcon mode) - CONFIG_SPL_FAT_LOAD_ARGS_NAME + CONFIG_SPL_FS_LOAD_ARGS_NAME Filename to read to load kernel argument parameters - when reading from FAT (for Falcon mode) + when reading from filesystem (for Falcon mode) CONFIG_SPL_MPC83XX_WAIT_FOR_NAND Set this for NAND SPL on PPC mpc83xx targets, so that @@ -3848,12 +3874,9 @@ Configuration Settings: The memory will be freed (or in fact just forgotton) when U-Boot relocates itself. - Pre-relocation malloc() is only supported on sandbox + Pre-relocation malloc() is only supported on ARM and sandbox at present but is fairly easy to enable for other archs. - Pre-relocation malloc() is only supported on ARM at present - but is fairly easy to enable for other archs. - - CONFIG_SYS_BOOTM_LEN: Normally compressed uImages are limited to an uncompressed size of 8 MBytes. If this is not enough, @@ -4034,6 +4057,11 @@ Configuration Settings: be asserted. See doc/README.omap-reset-time for details on how the value can be calulated on a given board. +- CONFIG_USE_STDINT + If stdint.h is available with your toolchain you can define this + option to enable it. You can provide option 'USE_STDINT=1' when + building U-Boot to enable this. + The following definitions that deal with the placement and management of environment data (variable area); in general, we support the following configurations: @@ -4984,14 +5012,14 @@ this behavior and build U-Boot to some external directory: make O=/tmp/build NAME_defconfig make O=/tmp/build all -2. Set environment variable BUILD_DIR to point to the desired location: +2. Set environment variable KBUILD_OUTPUT to point to the desired location: - export BUILD_DIR=/tmp/build + export KBUILD_OUTPUT=/tmp/build make distclean make NAME_defconfig make all -Note that the command line "O=" setting overrides the BUILD_DIR environment +Note that the command line "O=" setting overrides the KBUILD_OUTPUT environment variable.