========
This directory contains the source code for U-Boot, a boot loader for
-Embedded boards based on PowerPC and ARM processors, which can be
-installed in a boot ROM and used to initialize and test the hardware
-or to download and run application code.
+Embedded boards based on PowerPC, ARM, MIPS and several other
+processors, which can be installed in a boot ROM and used to
+initialize and test the hardware or to download and run application
+code.
The development of U-Boot is closely related to Linux: some parts of
the source code originate in the Linux source tree, we have some
- board Board dependent files
- common Misc architecture independent functions
- cpu CPU specific files
- - 74xx_7xx Files specific to Motorola MPC74xx and 7xx CPUs
+ - 74xx_7xx Files specific to Freescale MPC74xx and 7xx CPUs
- arm720t Files specific to ARM 720 CPUs
- arm920t Files specific to ARM 920 CPUs
+ - imx Files specific to Freescale MC9328 i.MX CPUs
+ - s3c24x0 Files specific to Samsung S3C24X0 CPUs
- arm925t Files specific to ARM 925 CPUs
- arm926ejs Files specific to ARM 926 CPUs
- at91rm9200 Files specific to Atmel AT91RM9200 CPUs
- i386 Files specific to i386 CPUs
- ixp Files specific to Intel XScale IXP CPUs
- - mcf52x2 Files specific to Motorola ColdFire MCF52x2 CPUs
+ - mcf52x2 Files specific to Freescale ColdFire MCF52x2 CPUs
- mips Files specific to MIPS CPUs
- - mpc5xx Files specific to Motorola MPC5xx CPUs
- - mpc5xxx Files specific to Motorola MPC5xxx CPUs
- - mpc8xx Files specific to Motorola MPC8xx CPUs
- - mpc824x Files specific to Motorola MPC824x CPUs
- - mpc8260 Files specific to Motorola MPC8260 CPUs
- - mpc85xx Files specific to Motorola MPC85xx CPUs
+ - mpc5xx Files specific to Freescale MPC5xx CPUs
+ - mpc5xxx Files specific to Freescale MPC5xxx CPUs
+ - mpc8xx Files specific to Freescale MPC8xx CPUs
+ - mpc8220 Files specific to Freescale MPC8220 CPUs
+ - mpc824x Files specific to Freescale MPC824x CPUs
+ - mpc8260 Files specific to Freescale MPC8260 CPUs
+ - mpc85xx Files specific to Freescale MPC85xx CPUs
- nios Files specific to Altera NIOS CPUs
+ - nios2 Files specific to Altera Nios-II CPUs
- ppc4xx Files specific to IBM PowerPC 4xx CPUs
- pxa Files specific to Intel XScale PXA CPUs
- s3c44b0 Files specific to Samsung S3C44B0 CPUs
-------------------
CONFIG_MPC823, CONFIG_MPC850, CONFIG_MPC855, CONFIG_MPC860
or CONFIG_MPC5xx
+ or CONFIG_MPC8220
or CONFIG_MPC824X, CONFIG_MPC8260
or CONFIG_MPC85xx
or CONFIG_IOP480
----------------------
CONFIG_MICROBLAZE
+ Nios-2 based CPUs:
+ ----------------------
+ CONFIG_NIOS2
+
- Board Type: Define exactly one of
CONFIG_SUZAKU
+ Nios-2 based boards:
+ ------------------------
+
+ CONFIG_PCI5441 CONFIG_PK1C20
+
- CPU Module Type: (if CONFIG_COGENT is defined)
Define exactly one of
CONFIG_MPC8240, CONFIG_MPC8245
- 8xx CPU Options: (if using an MPC8xx cpu)
- Define one or more of
- CONFIG_8xx_GCLK_FREQ - if get_gclk_freq() cannot work
+ CONFIG_8xx_GCLK_FREQ - deprecated: CPU clock if
+ get_gclk_freq() cannot work
e.g. if there is no 32KHz
reference PIT/RTC clock
+ CONFIG_8xx_OSCLK - PLL input clock (either EXTCLK
+ or XTAL/EXTAL)
-- 859/866 CPU options: (if using a MPC859 or MPC866 CPU):
- CFG_866_OSCCLK
- CFG_866_CPUCLK_MIN
- CFG_866_CPUCLK_MAX
- CFG_866_CPUCLK_DEFAULT
+- 859/866/885 CPU options: (if using a MPC859 or MPC866 or MPC885 CPU):
+ CFG_8xx_CPUCLK_MIN
+ CFG_8xx_CPUCLK_MAX
+ CONFIG_8xx_CPUCLK_DEFAULT
See doc/README.MPC866
CFG_MEASURE_CPUCLK
values. Mostly useful for board bringup to make sure
the PLL is locked at the intended frequency. Note
that this requires a (stable) reference clock (32 kHz
- RTC clock),
+ RTC clock or CFG_8XX_XIN)
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ
expect it to be in bytes, others in MB.
Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
+- Serial Ports:
+ CFG_PL010_SERIAL
+
+ Define this if you want support for Amba PrimeCell PL010 UARTs.
+
+ CFG_PL011_SERIAL
+
+ Define this if you want support for Amba PrimeCell PL011 UARTs.
+
+ CONFIG_PL011_CLOCK
+
+ If you have Amba PrimeCell PL011 UARTs, set this variable to
+ the clock speed of the UARTs.
+
+ CONFIG_PL01x_PORTS
+
+ If you have Amba PrimeCell PL010 or PL011 UARTs on your board,
+ define this to a list of base addresses for each (supported)
+ port. See e.g. include/configs/versatile.h
+
+
- Console Interface:
Depending on board, define exactly one serial port
(like CONFIG_8xx_CONS_SMC1, CONFIG_8xx_CONS_SMC2,
CFG_CMD_ASKENV * ask for env variable
CFG_CMD_AUTOSCRIPT Autoscript Support
CFG_CMD_BDI bdinfo
- CFG_CMD_BEDBUG Include BedBug Debugger
+ CFG_CMD_BEDBUG * Include BedBug Debugger
CFG_CMD_BMP * BMP support
+ CFG_CMD_BSP * Board specific commands
CFG_CMD_BOOTD bootd
- CFG_CMD_CACHE icache, dcache
+ CFG_CMD_CACHE * icache, dcache
CFG_CMD_CONSOLE coninfo
CFG_CMD_DATE * support for RTC, date/time...
- CFG_CMD_DHCP DHCP support
+ CFG_CMD_DHCP * DHCP support
CFG_CMD_DIAG * Diagnostics
CFG_CMD_DOC * Disk-On-Chip Support
- CFG_CMD_DTT Digital Therm and Thermostat
+ CFG_CMD_DTT * Digital Therm and Thermostat
CFG_CMD_ECHO * echo arguments
CFG_CMD_EEPROM * EEPROM read/write support
- CFG_CMD_ELF bootelf, bootvx
+ CFG_CMD_ELF * bootelf, bootvx
CFG_CMD_ENV saveenv
CFG_CMD_FDC * Floppy Disk Support
- CFG_CMD_FAT FAT partition support
+ CFG_CMD_FAT * FAT partition support
CFG_CMD_FDOS * Dos diskette Support
CFG_CMD_FLASH flinfo, erase, protect
CFG_CMD_FPGA FPGA device initialization support
CFG_CMD_IMLS List all found images
CFG_CMD_IMMAP * IMMR dump support
CFG_CMD_IRQ * irqinfo
- CFG_CMD_ITEST * Integer/string test of 2 values
+ CFG_CMD_ITEST Integer/string test of 2 values
CFG_CMD_JFFS2 * JFFS2 Support
CFG_CMD_KGDB * kgdb
CFG_CMD_LOADB loadb
CFG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
loop, loopw, mtest
CFG_CMD_MISC Misc functions like sleep etc
- CFG_CMD_MMC MMC memory mapped support
- CFG_CMD_MII MII utility commands
+ CFG_CMD_MMC * MMC memory mapped support
+ CFG_CMD_MII * MII utility commands
CFG_CMD_NAND * NAND support
CFG_CMD_NET bootp, tftpboot, rarpboot
CFG_CMD_PCI * pciinfo
CFG_CMD_PORTIO * Port I/O
CFG_CMD_REGINFO * Register dump
CFG_CMD_RUN run command in env variable
- CFG_CMD_SAVES save S record dump
+ CFG_CMD_SAVES * save S record dump
CFG_CMD_SCSI * SCSI Support
CFG_CMD_SDRAM * print SDRAM configuration information
CFG_CMD_SETGETDCR Support for DCR Register access (4xx only)
supported (PIP405, MIP405, MPC5200); define
CONFIG_USB_UHCI to enable it.
define CONFIG_USB_KEYBOARD to enable the USB Keyboard
- end define CONFIG_USB_STORAGE to enable the USB
+ and define CONFIG_USB_STORAGE to enable the USB
storage devices.
Note:
Supported are USB Keyboards and USB Floppy drives
enabled with CFG_CMD_MMC. The MMC driver also works with
the FAT fs. This is enabled with CFG_CMD_FAT.
+- Journaling Flash filesystem support:
+ CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
+ CONFIG_JFFS2_NAND_DEV
+ Define these for a default partition on a NAND device
+
+ CFG_JFFS2_FIRST_SECTOR,
+ CFG_JFFS2_FIRST_BANK, CFG_JFFS2_NUM_BANKS
+ Define these for a default partition on a NOR device
+
+ CFG_JFFS_CUSTOM_PART
+ Define this to create an own partition. You have to provide a
+ function struct part_info* jffs2_part_info(int part_num)
+
+ If you define only one JFFS2 partition you may also want to
+ #define CFG_JFFS_SINGLE_PART 1
+ to disable the command chpart. This is the default when you
+ have not defined a custom partition
+
- Keyboard Support:
CONFIG_ISA_KEYBOARD
source code. It is used to make hardware dependant
initializations.
-- CFG_IMMR: Physical address of the Internal Memory Mapped
- Register; DO NOT CHANGE! (11-4)
- [MPC8xx systems only]
+- CFG_IMMR: Physical address of the Internal Memory.
+ DO NOT CHANGE unless you know exactly what you're
+ doing! (11-4) [MPC8xx/82xx systems only]
- CFG_INIT_RAM_ADDR:
ADCIOP_config FPS860L_config omap730p2_config
ADS860_config GEN860T_config pcu_e_config
+ Alaska8220_config
AR405_config GENIETV_config PIP405_config
at91rm9200dk_config GTH_config QS823_config
CANBT_config hermes_config QS850_config
FADS860T_config omap1610inn_config TQM855L_config
FPS850L_config omap5912osk_config TQM860L_config
WALNUT405_config
+ Yukon8220_config
ZPC1900_config
Note: for some board special configuration names may exist; check if
git.openpandora.org / pandora-u-boot.git / blobdiff