arm: implement ELF relocations

[karo-tx-uboot.git] / doc / README.mpc8313erdb

diff --git a/doc/README.mpc8313erdb b/doc/README.mpc8313erdb
index 7ad4cc76c32088796d18446c0cfaa61f926cb300..be7ef32b45fb8e0f6ba58d7737ac1035a703ced2 100644 (file)
--- a/doc/README.mpc8313erdb
+++ b/doc/README.mpc8313erdb
@@ -3,10 +3,10 @@ Freescale MPC8313ERDB Board
 
 1.     Board Switches and Jumpers
 
-       SW3 is used to set CFG_RESET_SOURCE.
+       S3 is used to set CONFIG_SYS_RESET_SOURCE.
 
        To boot the image at 0xFE000000 in NOR flash, use these DIP
-       switche settings for SW3 SW4:
+       switch settings for S3 S4:
 
        +------+        +------+
        |      |        | **** |
@@ -15,6 +15,18 @@ Freescale MPC8313ERDB Board
          4321            4321
        (where the '*' indicates the position of the tab of the switch.)
 
+       To boot the image at the beginning of NAND flash, use these
+       DIP switch settings for S3 S4:
+
+       +------+        +------+
+       | *    |        |  *** |
+       |  *** |        | *    |
+       +------+ ON     +------+ ON
+         4321            4321
+       (where the '*' indicates the position of the tab of the switch.)
+
+       When booting from NAND, use u-boot-nand.bin, not u-boot.bin.
+
 2.     Memory Map
        The memory map looks like this:
 
@@ -22,13 +34,16 @@ Freescale MPC8313ERDB Board
        0x8000_0000     0x8fff_ffff     PCI MEM          256M
        0x9000_0000     0x9fff_ffff     PCI_MMIO         256M
        0xe000_0000     0xe00f_ffff     IMMR             1M
-       0xe200_0000     0xe20f_ffff     PCI IO           16M
+       0xe200_0000     0xe20f_ffff     PCI IO           16M
        0xe280_0000     0xe280_7fff     NAND FLASH (CS1) 32K
        0xf000_0000     0xf001_ffff     VSC7385 (CS2)    128K
        0xfa00_0000     0xfa00_7fff     Board Status/    32K
                                        LED Control (CS3)
        0xfe00_0000     0xfe7f_ffff     NOR FLASH (CS0)  8M
 
+       When booting from NAND, NAND flash is CS0 and NOR flash
+       is CS1.
+
 3.     Definitions
 
 3.1    Explanation of NEW definitions in:
@@ -45,15 +60,20 @@ Freescale MPC8313ERDB Board
 
        export CROSS_COMPILE=your-cross-compiler-prefix-
        make distclean
-       make MPC8313ERDB_33_config
-       (or make MPC8313ERDB_66_config, depending on the speed of
-        the oscillator on your board)
+       make MPC8313ERDB_XXX_config
+       (where XXX is:
+          33 - 33 MHz oscillator, boot from NOR flash
+          66 - 66 MHz oscillator, boot from NOR flash
+          NAND_33 - 33 MHz oscillator, boot from NAND flash
+          NAND_66 - 66 MHz oscillator, boot from NAND flash)
        make
 
 5.     Downloading and Flashing Images
 
 5.1    Reflash U-boot Image using U-boot
 
+       NOR flash:
+
        =>run tftpflash
 
        You may want to try
@@ -63,6 +83,15 @@ Freescale MPC8313ERDB Board
        have an alternate means of programming the flash available
        if the new u-boot doesn't boot.
 
+       NAND flash:
+
+       =>tftpboot $loadaddr <filename>
+       =>nand erase 0 0x80000
+       =>nand write $loadaddr 0 0x80000
+
+       ...where 0x80000 is the filesize rounded up to
+       the next 0x20000 increment.
+
 5.2    Downloading and Booting Linux Kernel
 
        Ensure that all networking-related environment variables are set
@@ -79,5 +108,4 @@ Freescale MPC8313ERDB Board
 
 6      Notes
 
-       Booting from NAND flash is not yet supported.
        The console baudrate for MPC8313ERDB is 115200bps.