mx6: clock: take 'num' and 'denom' regs into account when calculating audio/video...

[karo-tx-uboot.git] / doc / README.b4860qds

diff --git a/doc/README.b4860qds b/doc/README.b4860qds
index 48ece4b835d6330d6d695ec80e14abd7278dbc52..6fcc3bd6e8ae4b4c6a99f9c6b5bcf39ad920c131 100644 (file)
--- a/doc/README.b4860qds
+++ b/doc/README.b4860qds
@@ -119,7 +119,7 @@ B4860QDS Default Settings
 Switch Settings
 ----------------
 
 Switch Settings
 ----------------
 

-SW1    OFF [0] OFF [1] OFF [1] OFF [0] OFF [1] OFF [0] OFF [1] OFF [1]
+SW1    OFF [0] OFF [0] OFF [0] OFF [0] OFF [0] OFF [0] OFF [0] OFF [0]

 SW2    ON      ON      ON      ON      ON      ON      OFF     OFF
 SW3    OFF     OFF     OFF     ON      OFF     OFF     ON      OFF
 SW5    OFF     OFF     OFF     OFF     OFF     OFF     ON      ON
 SW2    ON      ON      ON      ON      ON      ON      OFF     OFF
 SW3    OFF     OFF     OFF     ON      OFF     OFF     ON      OFF
 SW5    OFF     OFF     OFF     OFF     OFF     OFF     ON      ON


@@ -227,17 +227,17 @@ Start Address     End Address     Description     Size
 NOR Flash memory Map on B4860 and B4420QDS
 ------------------------------------------
  Start          End            Definition                      Size
 NOR Flash memory Map on B4860 and B4420QDS
 ------------------------------------------
  Start          End            Definition                      Size

-0xEFF80000     0xEFFFFFFF      u-boot (current bank)           512KB
-0xEFF60000     0xEFF7FFFF      u-boot env (current bank)       128KB
-0xEFF40000     0xEFF5FFFF      FMAN Ucode (current bank)       128KB
-0xEF300000     0xEFF3FFFF      rootfs (alternate bank)         12MB + 256KB
+0xEFF40000     0xEFFFFFFF      u-boot (current bank)           768KB
+0xEFF20000     0xEFF3FFFF      u-boot env (current bank)       128KB
+0xEFF00000     0xEFF1FFFF      FMAN Ucode (current bank)       128KB
+0xEF300000     0xEFEFFFFF      rootfs (alternate bank)         12MB

 0xEE800000     0xEE8FFFFF      device tree (alternate bank)    1MB
 0xEE020000     0xEE6FFFFF      Linux.uImage (alternate bank)   6MB+896KB
 0xEE000000     0xEE01FFFF      RCW (alternate bank)            128KB
 0xEE800000     0xEE8FFFFF      device tree (alternate bank)    1MB
 0xEE020000     0xEE6FFFFF      Linux.uImage (alternate bank)   6MB+896KB
 0xEE000000     0xEE01FFFF      RCW (alternate bank)            128KB

-0xEDF80000     0xEDFFFFFF      u-boot (alternate bank)         512KB
-0xEDF60000     0xEDF7FFFF      u-boot env (alternate bank)     128KB
-0xEDF40000     0xEDF5FFFF      FMAN ucode (alternate bank)     128KB
-0xED300000     0xEDF3FFFF      rootfs (current bank)           12MB+256MB
+0xEDF40000     0xEDFFFFFF      u-boot (alternate bank)         768KB
+0xEDF20000     0xEDF3FFFF      u-boot env (alternate bank)     128KB
+0xEDF00000     0xEDF1FFFF      FMAN ucode (alternate bank)     128KB
+0xED300000     0xEDEFFFFF      rootfs (current bank)           12MB

 0xEC800000     0xEC8FFFFF      device tree (current bank)      1MB
 0xEC020000     0xEC6FFFFF      Linux.uImage (current bank)     6MB+896KB
 0xEC000000     0xEC01FFFF      RCW (current bank)              128KB
 0xEC800000     0xEC8FFFFF      device tree (current bank)      1MB
 0xEC020000     0xEC6FFFFF      Linux.uImage (current bank)     6MB+896KB
 0xEC000000     0xEC01FFFF      RCW (current bank)              128KB


@@ -328,3 +328,39 @@ The below commands apply to both B4860QDS and B4420QDS.
    On Linux the interfaces are renamed as:
        . eth2 -> fm1-gb2
        . eth3 -> fm1-gb3
    On Linux the interfaces are renamed as:
        . eth2 -> fm1-gb2
        . eth3 -> fm1-gb3

+
+NAND boot with 2 Stage boot loader
+----------------------------------
+PBL initialise the internal SRAM and copy SPL(160KB) in SRAM.
+SPL further initialise DDR using SPD and environment variables and copy
+u-boot(768 KB) from flash to DDR.
+Finally SPL transer control to u-boot for futher booting.
+
+SPL has following features:
+ - Executes within 256K
+ - No relocation required
+
+ Run time view of SPL framework during  boot :-
+ -----------------------------------------------
+ Area        | Address                         |
+-----------------------------------------------
+ Secure boot | 0xFFFC0000 (32KB)               |
+ headers     |                                 |
+ -----------------------------------------------
+ GD, BD      | 0xFFFC8000 (4KB)                |
+ -----------------------------------------------
+ ENV         | 0xFFFC9000 (8KB)                |
+ -----------------------------------------------
+ HEAP        | 0xFFFCB000 (30KB)               |
+ -----------------------------------------------
+ STACK       | 0xFFFD8000 (22KB)               |
+ -----------------------------------------------
+ U-boot SPL  | 0xFFFD8000 (160KB)              |
+ -----------------------------------------------
+
+NAND Flash memory Map on B4860 and B4420QDS
+------------------------------------------
+ Start          End            Definition                      Size
+0x000000       0x0FFFFF        u-boot                          1MB
+0x140000       0x15FFFF        u-boot env                      128KB
+0x1A0000       0x1BFFFF        FMAN Ucode                      128KB