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Rename mcfrtc to rtc
[oweals/u-boot.git] / README
diff --git a/README b/README
index 5c907c8f072f6919bd1adf9852dd8dc1d51814dd..dd12cd7ee5a5c6ff2dc504632a8bde32a5208468 100644 (file)
--- a/README
+++ b/README
@@ -136,6 +136,7 @@ Directory Hierarchy:
   - 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
+  - mcf532x    Files specific to Freescale ColdFire MCF5329 CPUs
   - mips       Files specific to MIPS CPUs
   - mpc5xx     Files specific to Freescale MPC5xx  CPUs
   - mpc5xxx    Files specific to Freescale MPC5xxx CPUs
   - mips       Files specific to MIPS CPUs
   - mpc5xx     Files specific to Freescale MPC5xx  CPUs
   - mpc5xxx    Files specific to Freescale MPC5xxx CPUs
@@ -164,6 +165,7 @@ Directory Hierarchy:
 - lib_mips     Files generic to MIPS    architecture
 - lib_nios     Files generic to NIOS    architecture
 - lib_ppc      Files generic to PowerPC architecture
 - lib_mips     Files generic to MIPS    architecture
 - lib_nios     Files generic to NIOS    architecture
 - lib_ppc      Files generic to PowerPC architecture
+- libfdt       Library files to support flattened device trees
 - net          Networking code
 - post         Power On Self Test
 - rtc          Real Time Clock drivers
 - net          Networking code
 - post         Power On Self Test
 - rtc          Real Time Clock drivers
@@ -250,6 +252,10 @@ The following options need to be configured:
                CONFIG_PXA250
                CONFIG_CPU_MONAHANS
 
                CONFIG_PXA250
                CONFIG_CPU_MONAHANS
 
+               ColdFire based CPUs:
+               --------------------
+               CONFIG_M5329
+
                MicroBlaze based CPUs:
                ----------------------
                CONFIG_MICROBLAZE
                MicroBlaze based CPUs:
                ----------------------
                CONFIG_MICROBLAZE
@@ -430,12 +436,23 @@ The following options need to be configured:
                expect it to be in bytes, others in MB.
                Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
 
                expect it to be in bytes, others in MB.
                Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
 
-               CONFIG_OF_FLAT_TREE
+               CONFIG_OF_LIBFDT / CONFIG_OF_FLAT_TREE
 
                New kernel versions are expecting firmware settings to be
 
                New kernel versions are expecting firmware settings to be
-               passed using flat open firmware trees.
-               The environment variable "disable_of", when set, disables this
-               functionality.
+               passed using flattened device trees (based on open firmware
+               concepts).
+
+               CONFIG_OF_LIBFDT
+                * New libfdt-based support
+                * Adds the "fdt" command
+                * The bootm command does _not_ modify the fdt
+
+               CONFIG_OF_FLAT_TREE
+                * Deprecated, see CONFIG_OF_LIBFDT
+                * Original ft_build.c-based support
+                * Automatically modifies the dft as part of the bootm command
+                * The environment variable "disable_of", when set,
+                    disables this functionality.
 
                CONFIG_OF_FLAT_TREE_MAX_SIZE
 
 
                CONFIG_OF_FLAT_TREE_MAX_SIZE
 
@@ -448,13 +465,16 @@ The following options need to be configured:
 
                CONFIG_OF_HAS_BD_T
 
 
                CONFIG_OF_HAS_BD_T
 
-               The resulting flat device tree will have a copy of the bd_t.
-               Space should be pre-allocated in the dts for the bd_t.
+                * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
+                * CONFIG_OF_FLAT_TREE - The resulting flat device tree
+                    will have a copy of the bd_t.  Space should be
+                    pre-allocated in the dts for the bd_t.
 
                CONFIG_OF_HAS_UBOOT_ENV
 
 
                CONFIG_OF_HAS_UBOOT_ENV
 
-               The resulting flat device tree will have a copy of u-boot's
-               environment variables
+                * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
+                * CONFIG_OF_FLAT_TREE - The resulting flat device tree
+                    will have a copy of u-boot's environment variables
 
                CONFIG_OF_BOARD_SETUP
 
 
                CONFIG_OF_BOARD_SETUP
 
@@ -703,6 +723,7 @@ The following options need to be configured:
                CFG_CMD_VFD     * VFD support (TRAB)
                CFG_CMD_BSP     * Board SPecific functions
                CFG_CMD_CDP     * Cisco Discover Protocol support
                CFG_CMD_VFD     * VFD support (TRAB)
                CFG_CMD_BSP     * Board SPecific functions
                CFG_CMD_CDP     * Cisco Discover Protocol support
+               CFG_CMD_FSL     * Microblaze FSL support
                -----------------------------------------------
                CFG_CMD_ALL     all
 
                -----------------------------------------------
                CFG_CMD_ALL     all
 
@@ -721,6 +742,8 @@ The following options need to be configured:
 
                #define CONFIG_COMMANDS (CFG_CMD_ALL & ~CFG_CMD_NET)
 
 
                #define CONFIG_COMMANDS (CFG_CMD_ALL & ~CFG_CMD_NET)
 
+       Other Commands:
+               fdt (flattened device tree) command: CONFIG_OF_LIBFDT
 
        Note:   Don't enable the "icache" and "dcache" commands
                (configuration option CFG_CMD_CACHE) unless you know
 
        Note:   Don't enable the "icache" and "dcache" commands
                (configuration option CFG_CMD_CACHE) unless you know
@@ -1342,6 +1365,27 @@ The following options need to be configured:
 
                will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
 
 
                will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
 
+               CFG_SPD_BUS_NUM
+
+               If defined, then this indicates the I2C bus number for DDR SPD.
+               If not defined, then U-Boot assumes that SPD is on I2C bus 0.
+
+               CFG_RTC_BUS_NUM
+
+               If defined, then this indicates the I2C bus number for the RTC.
+               If not defined, then U-Boot assumes that RTC is on I2C bus 0.
+
+               CFG_DTT_BUS_NUM
+
+               If defined, then this indicates the I2C bus number for the DTT.
+               If not defined, then U-Boot assumes that DTT is on I2C bus 0.
+
+               CONFIG_FSL_I2C
+
+               Define this option if you want to use Freescale's I2C driver in
+               drivers/fsl_i2c.c.
+
+
 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with
 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with
@@ -1500,8 +1544,8 @@ The following options need to be configured:
 
                Enable auto completion of commands using TAB.
 
 
                Enable auto completion of commands using TAB.
 
-                Note that this feature has NOT been implemented yet
-                for the "hush" shell.
+               Note that this feature has NOT been implemented yet
+               for the "hush" shell.
 
 
                CFG_HUSH_PARSER
 
 
                CFG_HUSH_PARSER
@@ -2360,17 +2404,17 @@ configurations; the following names are supported:
        csb272_config           lwmon_config            sbc8260_config
        CU824_config            MBX860T_config          sbc8560_33_config
        DUET_ADS_config         MBX_config              sbc8560_66_config
        csb272_config           lwmon_config            sbc8260_config
        CU824_config            MBX860T_config          sbc8560_33_config
        DUET_ADS_config         MBX_config              sbc8560_66_config
-       EBONY_config            MPC8260ADS_config       SM850_config
-       ELPT860_config          MPC8540ADS_config       SPD823TS_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
+       EBONY_config            mpc7448hpc2_config      SM850_config
+       ELPT860_config          MPC8260ADS_config       SPD823TS_config
+       ESTEEM192E_config       MPC8540ADS_config       stxgp3_config
+       ETX094_config           MPC8540EVAL_config      SXNI855T_config
+       FADS823_config          NMPC8560ADS_config      TQM823L_config
+       FADS850SAR_config       NETVIA_config           TQM850L_config
+       FADS860T_config         omap1510inn_config      TQM855L_config
+       FPS850L_config          omap1610h2_config       TQM860L_config
+                               omap1610inn_config      walnut_config
+                               omap5912osk_config      Yukon8220_config
+                               omap2420h4_config       ZPC1900_config
 
 Note: for some board special configuration names may exist; check if
       additional information is available from the board vendor; for
 
 Note: for some board special configuration names may exist; check if
       additional information is available from the board vendor; for
@@ -3162,11 +3206,11 @@ loadaddr=200000
 oftaddr=0x300000
 => bootm $loadaddr - $oftaddr
 ## Booting image at 00200000 ...
 oftaddr=0x300000
 => bootm $loadaddr - $oftaddr
 ## Booting image at 00200000 ...
-   Image Name:   Linux-2.6.17-dirty
-   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
-   Data Size:    1029343 Bytes = 1005.2 kB
+   Image Name:  Linux-2.6.17-dirty
+   Image Type:  PowerPC Linux Kernel Image (gzip compressed)
+   Data Size:   1029343 Bytes = 1005.2 kB
    Load Address: 00000000
    Load Address: 00000000
-   Entry Point:  00000000
+   Entry Point:         00000000
    Verifying Checksum ... OK
    Uncompressing Kernel Image ... OK
 Booting using flat device tree at 0x300000
    Verifying Checksum ... OK
    Uncompressing Kernel Image ... OK
 Booting using flat device tree at 0x300000
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