X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=README;h=c52ccbd9db3ce074b32c981c6edc9536bdd11456;hb=931da93e0fced277c058c0c989d30bd1f6d10742;hp=8ea41f86a5da22b573ffa69ecfd89ff6790532db;hpb=e86e5a07485bc0f33103004594a28882c028e7af;p=u-boot diff --git a/README b/README index 8ea41f86a5..c52ccbd9db 100644 --- a/README +++ b/README @@ -1,5 +1,5 @@ # -# (C) Copyright 2000 - 2004 +# (C) Copyright 2000 - 2005 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -123,24 +123,26 @@ Directory Hierarchy: - 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 Motorola MC9328 i.MX CPUs + - at91rm9200 Files specific to Atmel AT91RM9200 CPU + - 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 + - arm1136 Files specific to ARM 1136 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 @@ -229,6 +231,7 @@ The following options need to be configured: ------------------- 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 @@ -299,13 +302,13 @@ The following options need to be configured: ARM based boards: ----------------- - CONFIG_AT91RM9200DK, CONFIG_CERF250, CONFIG_DNP1110, - CONFIG_EP7312, CONFIG_H2_OMAP1610, CONFIG_HHP_CRADLE, - CONFIG_IMPA7, CONFIG_INNOVATOROMAP1510, CONFIG_INNOVATOROMAP1610, - CONFIG_LART, CONFIG_LPD7A400 CONFIG_LUBBOCK, - CONFIG_OSK_OMAP5912, CONFIG_SHANNON, CONFIG_P2_OMAP730, - CONFIG_SMDK2400, CONFIG_SMDK2410, CONFIG_TRAB, - CONFIG_VCMA9 + CONFIG_AT91RM9200DK, CONFIG_CERF250, CONFIG_DNP1110, + CONFIG_EP7312, CONFIG_H2_OMAP1610, CONFIG_HHP_CRADLE, + CONFIG_IMPA7, CONFIG_INNOVATOROMAP1510, CONFIG_INNOVATOROMAP1610, + CONFIG_LART, CONFIG_LPD7A400 CONFIG_LUBBOCK, + CONFIG_OSK_OMAP5912, CONFIG_OMAP2420H4, CONFIG_SHANNON, + CONFIG_P2_OMAP730, CONFIG_SMDK2400, CONFIG_SMDK2410, + CONFIG_TRAB, CONFIG_VCMA9 MicroBlaze based boards: ------------------------ @@ -624,6 +627,7 @@ The following options need to be configured: CFG_CMD_SAVES * save S record dump CFG_CMD_SCSI * SCSI Support CFG_CMD_SDRAM * print SDRAM configuration information + (requires CFG_CMD_I2C) CFG_CMD_SETGETDCR Support for DCR Register access (4xx only) CFG_CMD_SPI * SPI serial bus support CFG_CMD_USB * USB support @@ -833,7 +837,7 @@ The following options need to be configured: 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 + #define CFG_JFFS_SINGLE_PART 1 to disable the command chpart. This is the default when you have not defined a custom partition @@ -1975,9 +1979,9 @@ Low Level (hardware related) configuration options: 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: @@ -2111,6 +2115,33 @@ Low Level (hardware related) configuration options: Add the "loopw" memory command. This only takes effect if the memory commands are activated globally (CFG_CMD_MEM). +- CONFIG_MX_CYCLIC + Add the "mdc" and "mwc" memory commands. These are cyclic + "md/mw" commands. + Examples: + + => mdc.b 10 4 500 + This command will print 4 bytes (10,11,12,13) each 500 ms. + + => mwc.l 100 12345678 10 + This command will write 12345678 to address 100 all 10 ms. + + This only takes effect if the memory commands are activated + globally (CFG_CMD_MEM). + +- CONFIG_SKIP_LOWLEVEL_INIT +- CONFIG_SKIP_RELOCATE_UBOOT + + [ARM only] If these variables are defined, then + certain low level initializations (like setting up + the memory controller) are omitted and/or U-Boot does + not relocate itself into RAM. + Normally these variables MUST NOT be defined. The + only exception is when U-Boot is loaded (to RAM) by + some other boot loader or by a debugger which + performs these intializations itself. + + Building the Software: ====================== @@ -2140,6 +2171,7 @@ configurations; the following names are supported: 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 @@ -2160,7 +2192,8 @@ configurations; the following names are supported: FADS850SAR_config omap1610h2_config TQM850L_config FADS860T_config omap1610inn_config TQM855L_config FPS850L_config omap5912osk_config TQM860L_config - WALNUT405_config + omap2420h4_config WALNUT405_config + Yukon8220_config ZPC1900_config Note: for some board special configuration names may exist; check if @@ -3048,8 +3081,7 @@ Booting assumes that (the first part of) the image booted is a stage-2 loader which in turn loads and then invokes the kernel proper. Loader sources will eventually appear in the NetBSD source tree (probably in sys/arc/mpc8xx/stand/u-boot_stage2/); in the -meantime, send mail to bruno@exet-ag.de and/or wd@denx.de for -details. +meantime, see ftp://ftp.denx.de/pub/u-boot/ppcboot_stage2.tar.gz Implementation Internals: @@ -3349,6 +3381,7 @@ Since the number of patches for U-Boot is growing, we need to establish some rules. Submissions which do not conform to these rules may be rejected, even when they contain important and valuable stuff. +Patches shall be sent to the u-boot-users mailing list. When you send a patch, please include the following information with it: @@ -3406,3 +3439,6 @@ Notes: (using #ifdef), and the resulting code with the new feature disabled must not need more memory than the old code without your modification. + +* Remember that there is a size limit of 40 kB per message on the + u-boot-users mailing list. Compression may help.