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
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
(requires CONFIG_CMD_MEMORY and CONFIG_MD5)
CONFIG_CMD_MEMINFO * Display detailed memory information
CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
- loop, loopw, mtest
+ loop, loopw
+ CONFIG_CMD_MEMTEST mtest
CONFIG_CMD_MISC Misc functions like sleep etc
CONFIG_CMD_MMC * MMC memory mapped support
CONFIG_CMD_MII * MII utility commands
I2C_READ
- Code that returns TRUE if the I2C data line is high,
- FALSE if it is low.
+ Code that returns true if the I2C data line is high,
+ false if it is low.
eg: #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
I2C_SDA(bit)
- If <bit> is TRUE, sets the I2C data line high. If it
- is FALSE, it clears it (low).
+ If <bit> is true, sets the I2C data line high. If it
+ is false, it clears it (low).
eg: #define I2C_SDA(bit) \
if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
I2C_SCL(bit)
- If <bit> is TRUE, sets the I2C clock line high. If it
- is FALSE, it clears it (low).
+ If <bit> is true, sets the I2C clock line high. If it
+ is false, it clears it (low).
eg: #define I2C_SCL(bit) \
if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
If defined, don't allow the -f switch to env set override variable
access flags.
+- CONFIG_SYS_GENERIC_BOARD
+ This selects the architecture-generic board system instead of the
+ architecture-specific board files. It is intended to move boards
+ to this new framework over time. Defining this will disable the
+ arch/foo/lib/board.c file and use common/board_f.c and
+ common/board_r.c instead. To use this option your architecture
+ must support it (i.e. must define __HAVE_ARCH_GENERIC_BOARD in
+ its config.mk file). If you find problems enabling this option on
+ your board please report the problem and send patches!
+
+- CONFIG_SYS_SYM_OFFSETS
+ This is set by architectures that use offsets for link symbols
+ instead of absolute values. So bss_start is obtained using an
+ offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than
+ directly. You should not need to touch this setting.
+
+
The following definitions that deal with the placement and management
of environment data (variable area); in general, we support the
following configurations:
If defined, the x86 reset vector code is included. This is not
needed when U-Boot is running from Coreboot.
+- CONFIG_SYS_MPUCLK
+ Defines the MPU clock speed (in MHz).
+
+ NOTE : currently only supported on AM335x platforms.
Freescale QE/FMAN Firmware Support:
-----------------------------------