Address for the Internal Memory-Mapped Registers (IMMR) window used
to configure the features of many Freescale / NXP SoCs.
+config MONITOR_IS_IN_RAM
+ bool "U-Boot is loaded in to RAM by a pre-loader"
+ depends on M68K || NIOS2
+
config SKIP_LOWLEVEL_INIT
bool "Skip the calls to certain low level initialization functions"
depends on ARM || MIPS || RISCV
please first check:
- in ./include/configs/cobra5272.h
+ in ./configs/cobra5272_defconfig
- CONFIG_MONITOR_IS_IN_RAM has to be undefined, e. g. as follows:
-
- #if 0
- #define CONFIG_MONITOR_IS_IN_RAM
- /* define if monitor is started from a pre-loader */
- #endif
+ CONFIG_MONITOR_IS_IN_RAM has to be not present in the file
=> u-boot as single bootloader starting from flash
- in board/cobra5272/config.mk CONFIG_TEXT_BASE should be
+ in configs/cobra5272_defconfig CONFIG_TEXT_BASE should be
- CONFIG_TEXT_BASE = 0xffe00000
+ CONFIG_TEXT_BASE=0xffe00000
=> linking address for u-boot as single bootloader stored in flash
host> make distclean
please modify the settings:
+ in ./configs/cobra5272_defconfig
- in ./include/configs/cobra5272.h
-
- CONFIG_MONITOR_IS_IN_RAM now has to be defined, e. g. as follows:
+ CONFIG_MONITOR_IS_IN_RAM now has to be enabled, e. g. as follows:
- #if 1
- #define CONFIG_MONITOR_IS_IN_RAM
- /*define if monitor is started from a pre-loader */
- #endif
+ CONFIG_MONITOR_IS_IN_RAM=y
=> u-boot as RAM version, chainloaded by another bootloader or using bdm cable
- in board/cobra5272/config.mk CONFIG_TEXT_BASE should be
+ in configs/cobra5272_defconfig CONFIG_TEXT_BASE should be
- CONFIG_TEXT_BASE = 0x00020000
+ CONFIG_TEXT_BASE=0x00020000
=> target linking address for RAM
CONFIG_NIOS2=y
CONFIG_SYS_CONFIG_NAME="10m50_devboard"
+CONFIG_MONITOR_IS_IN_RAM=y
CONFIG_SYS_MALLOC_LEN=0x20000
CONFIG_SYS_MALLOC_F_LEN=0x400
CONFIG_NR_DRAM_BANKS=1
CONFIG_NIOS2=y
CONFIG_SYS_CONFIG_NAME="3c120_devboard"
+CONFIG_MONITOR_IS_IN_RAM=y
CONFIG_SYS_MALLOC_LEN=0x20000
CONFIG_SYS_MALLOC_F_LEN=0x400
CONFIG_NR_DRAM_BANKS=1
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If U-Boot should be loaded to RAM and started by a pre-loader
-CONFIG_MONITOR_IS_IN_RAM must be defined. If it is defined the
+CONFIG_MONITOR_IS_IN_RAM must be enabled. If it is enabled the
initial vector table and basic processor initialization will not
be compiled in. The start address of U-Boot must be adjusted in
-the boards config header file (CONFIG_SYS_MONITOR_BASE) and Makefile
+the boards defconfig file (CONFIG_SYS_MONITOR_BASE) and Makefile
(CONFIG_TEXT_BASE) to the load address.
ColdFire CPU specific options/settings
*/
#define CFG_SYS_SDRAM_BASE 0xc8000000
#define CFG_SYS_SDRAM_SIZE 0x08000000
-#define CONFIG_MONITOR_IS_IN_RAM
#endif /* __CONFIG_H */
*/
#define CFG_SYS_SDRAM_BASE 0xD0000000
#define CFG_SYS_SDRAM_SIZE 0x08000000
-#define CONFIG_MONITOR_IS_IN_RAM
#endif /* __CONFIG_H */
#define CFG_SYS_UART_PORT (0)
-#undef CONFIG_MONITOR_IS_IN_RAM /* no pre-loader required!!! ;-) */
-
/*
* Clock configuration: enable only one of the following options
*/
#define CFG_SYS_UART_PORT (0)
-#undef CONFIG_MONITOR_IS_IN_RAM /* define if monitor is started from a pre-loader */
-
/* Configuration for environment
* Environment is embedded in u-boot in the second sector of the flash
*/
#define CFG_SYS_UART_PORT (0)
-#undef CONFIG_MONITOR_IS_IN_RAM /* define if monitor is started from a pre-loader */
-
/* Configuration for environment
* Environment is embedded in u-boot in the second sector of the flash
*/
#error No card type defined!
#endif
-/*
- * CONFIG_RAM defines if u-boot is loaded via BDM (or started from
- * a different bootloader that has already performed RAM setup) or
- * started directly from flash, which is the regular case for production
- * boards.
- */
-#ifdef CONFIG_RAM
-#define CONFIG_MONITOR_IS_IN_RAM
-#endif
-
/* I2C */
/*
#define CFG_SYS_UART_PORT (2)
#define CFG_SYS_UART2_ALT3_GPIO
-/*
- * Configuration for environment
- * Environment is located in the last sector of the flash
- */
-
-#ifndef CONFIG_MONITOR_IS_IN_RAM
-#else
-/*
- * environment in RAM - This is used to use a single PC-based application
- * to load an image, load U-Boot, load an environment and then start U-Boot
- * to execute the commands from the environment. Feedback is done via setting
- * and reading memory locations.
- */
-#endif
-
/* here we put our FPGA configuration... */
/* Define user parameters that have to be customized most likely */
#define CFG_SYS_UART_PORT (0)
-/* ---
- * CONFIG_MONITOR_IS_IN_RAM defines if u-boot is started from a different
- * bootloader residing in flash ('chainloading'); if you want to use
- * chainloading or want to compile a u-boot binary that can be loaded into
- * RAM via BDM set
- * "#if 0" to "#if 1"
- * You will need a first stage bootloader then, e. g. colilo or a working BDM
- * cable (Background Debug Mode)
- *
- * Setting #if 0: u-boot will start from flash and relocate itself to RAM
- *
- * Please do not forget to modify the setting of CONFIG_TEXT_BASE
- * in board/cobra5272/config.mk accordingly (#if 0: 0xffe00000; #if 1: 0x20000)
- *
- * ---
- */
-
-#if 0
-#define CONFIG_MONITOR_IS_IN_RAM /* monitor is started from a preloader */
-#endif
-
/* ---
* Configuration for environment
* Environment is embedded in u-boot in the second sector of the flash
#define CFG_SYS_UART_PORT (0)
-#undef CONFIG_MONITOR_IS_IN_RAM /* starts uboot direct */
-
/*----------------------------------------------------------------------*
* Options *
*----------------------------------------------------------------------*/
projects / u-boot.git / commitdiff
