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Merge with rsync://git-user@source.denx.net/git/u-boot.git
[platform/kernel/u-boot.git] / README
diff --git a/README b/README
index 9455cc2..9283c5e 100644 (file)
--- 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
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -126,11 +126,12 @@ Directory Hierarchy:
   - 74xx_7xx   Files specific to Freescale MPC74xx and 7xx CPUs
   - arm720t    Files specific to ARM 720 CPUs
   - arm920t    Files specific to ARM 920 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
+    - 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
     - 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 Freescale ColdFire MCF52x2 CPUs
   - i386       Files specific to i386 CPUs
   - ixp                Files specific to Intel XScale IXP CPUs
   - mcf52x2    Files specific to Freescale ColdFire MCF52x2 CPUs
@@ -286,28 +287,28 @@ The following options need to be configured:
                CONFIG_EBONY            CONFIG_MOUSSE           CONFIG_SXNI855T
                CONFIG_ELPPC            CONFIG_MPC8260ADS       CONFIG_TQM823L
                CONFIG_ELPT860          CONFIG_MPC8540ADS       CONFIG_TQM8260
                CONFIG_EBONY            CONFIG_MOUSSE           CONFIG_SXNI855T
                CONFIG_ELPPC            CONFIG_MPC8260ADS       CONFIG_TQM823L
                CONFIG_ELPT860          CONFIG_MPC8540ADS       CONFIG_TQM8260
-               CONFIG_ep8260           CONFIG_MPC8560ADS       CONFIG_TQM850L
-               CONFIG_ERIC             CONFIG_MUSENKI          CONFIG_TQM855L
-               CONFIG_ESTEEM192E       CONFIG_MVS1             CONFIG_TQM860L
-               CONFIG_ETX094           CONFIG_NETPHONE         CONFIG_TTTech
-               CONFIG_EVB64260         CONFIG_NETTA            CONFIG_UTX8245
-               CONFIG_FADS823          CONFIG_NETVIA           CONFIG_V37
-               CONFIG_FADS850SAR       CONFIG_NX823            CONFIG_W7OLMC
-               CONFIG_FADS860T         CONFIG_OCRTC            CONFIG_W7OLMG
-               CONFIG_FLAGADM          CONFIG_ORSG             CONFIG_WALNUT405
-               CONFIG_FPS850L          CONFIG_OXC              CONFIG_ZPC1900
-               CONFIG_FPS860L                                  CONFIG_ZUMA
+               CONFIG_ep8260           CONFIG_MPC8540EVAL      CONFIG_TQM850L
+               CONFIG_ERIC             CONFIG_MPC8560ADS       CONFIG_TQM855L
+               CONFIG_ESTEEM192E       CONFIG_MUSENKI          CONFIG_TQM860L
+               CONFIG_ETX094           CONFIG_MVS1             CONFIG_TTTech
+               CONFIG_EVB64260         CONFIG_NETPHONE         CONFIG_UTX8245
+               CONFIG_FADS823          CONFIG_NETTA            CONFIG_V37
+               CONFIG_FADS850SAR       CONFIG_NETVIA           CONFIG_W7OLMC
+               CONFIG_FADS860T         CONFIG_NX823            CONFIG_W7OLMG
+               CONFIG_FLAGADM          CONFIG_OCRTC            CONFIG_WALNUT
+               CONFIG_FPS850L          CONFIG_ORSG             CONFIG_ZPC1900
+               CONFIG_FPS860L          CONFIG_OXC              CONFIG_ZUMA
 
                ARM based boards:
                -----------------
 
 
                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:
                ------------------------
 
                MicroBlaze based boards:
                ------------------------
@@ -626,6 +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
                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
                CFG_CMD_SETGETDCR Support for DCR Register access (4xx only)
                CFG_CMD_SPI     * SPI serial bus support
                CFG_CMD_USB     * USB support
@@ -835,7 +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
                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
 
                to disable the command chpart. This is the default when you
                have not defined a custom partition
 
@@ -1978,7 +1980,7 @@ Low Level (hardware related) configuration options:
                initializations.
 
 - CFG_IMMR:    Physical address of the Internal Memory.
                initializations.
 
 - CFG_IMMR:    Physical address of the Internal Memory.
-                DO NOT CHANGE unless you know exactly what you're
+               DO NOT CHANGE unless you know exactly what you're
                doing! (11-4) [MPC8xx/82xx systems only]
 
 - CFG_INIT_RAM_ADDR:
                doing! (11-4) [MPC8xx/82xx systems only]
 
 - CFG_INIT_RAM_ADDR:
@@ -2118,15 +2120,28 @@ Low Level (hardware related) configuration options:
                "md/mw" commands.
                Examples:
 
                "md/mw" commands.
                Examples:
 
-                => mdc.b 10 4 500
+               => mdc.b 10 4 500
                This command will print 4 bytes (10,11,12,13) each 500 ms.
 
                This command will print 4 bytes (10,11,12,13) each 500 ms.
 
-                => mwc.l 100 12345678 10
+               => mwc.l 100 12345678 10
                This command will write 12345678 to address 100 all 10 ms.
 
                This command will write 12345678 to address 100 all 10 ms.
 
-                This only takes effect if the memory commands are activated
+               This only takes effect if the memory commands are activated
                globally (CFG_CMD_MEM).
 
                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:
 ======================
 
 Building the Software:
 ======================
 
@@ -2171,14 +2186,14 @@ configurations; the following names are supported:
        DUET_ADS_config         MBX_config              sbc8560_66_config
        EBONY_config            MPC8260ADS_config       SM850_config
        ELPT860_config          MPC8540ADS_config       SPD823TS_config
        DUET_ADS_config         MBX_config              sbc8560_66_config
        EBONY_config            MPC8260ADS_config       SM850_config
        ELPT860_config          MPC8540ADS_config       SPD823TS_config
-       ESTEEM192E_config       MPC8560ADS_config       stxgp3_config
-       ETX094_config           NETVIA_config           SXNI855T_config
-       FADS823_config          omap1510inn_config      TQM823L_config
-       FADS850SAR_config       omap1610h2_config       TQM850L_config
-       FADS860T_config         omap1610inn_config      TQM855L_config
-       FPS850L_config          omap5912osk_config      TQM860L_config
-                                                       WALNUT405_config
-                                                       Yukon8220_config
+       ESTEEM192E_config       MPC8540EVAL_config      stxgp3_config
+       ETX094_config           MPC8560ADS_config       SXNI855T_config
+       FADS823_config          NETVIA_config           TQM823L_config
+       FADS850SAR_config       omap1510inn_config      TQM850L_config
+       FADS860T_config         omap1610h2_config       TQM855L_config
+       FPS850L_config          omap1610inn_config      TQM860L_config
+                               omap5912osk_config      walnut_config
+                               omap2420h4_config       Yukon8220_config
                                                        ZPC1900_config
 
 Note: for some board special configuration names may exist; check if
                                                        ZPC1900_config
 
 Note: for some board special configuration names may exist; check if
@@ -3066,8 +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
 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:
 
 
 Implementation Internals:
@@ -3121,7 +3135,7 @@ locked as (mis-) used as memory, etc.
        CFG_INIT_RAM_ADDR should be somewhere that won't interfere
        with your processor/board/system design. The default value
        you will find in any recent u-boot distribution in
        CFG_INIT_RAM_ADDR should be somewhere that won't interfere
        with your processor/board/system design. The default value
        you will find in any recent u-boot distribution in
-       Walnut405.h should work for you. I'd set it to a value larger
+       walnut.h should work for you. I'd set it to a value larger
        than your SDRAM module. If you have a 64MB SDRAM module, set
        it above 400_0000. Just make sure your board has no resources
        that are supposed to respond to that address! That code in
        than your SDRAM module. If you have a 64MB SDRAM module, set
        it above 400_0000. Just make sure your board has no resources
        that are supposed to respond to that address! That code in
@@ -3367,6 +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.
 
 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:
 
 When you send a patch, please include the following information with
 it:
@@ -3424,3 +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.
   (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.
Domain: System / Kernel;