Merge branch 'master' of git://git.denx.de/u-boot-sunxi

[u-boot] / doc / README.b4860qds

diff --git a/doc/README.b4860qds b/doc/README.b4860qds
index f8a79dbb25c4d941fbca2870b20ee866a52cec5d..889c8a984293473318ca61acd0f2c39d94cafe10 100644 (file)
--- a/doc/README.b4860qds
+++ b/doc/README.b4860qds
@@ -119,7 +119,7 @@ B4860QDS Default 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
@@ -227,17 +227,17 @@ Start Address     End Address     Description     Size
 NOR Flash memory Map on B4860 and B4420QDS
 ------------------------------------------
  Start          End            Definition                      Size
-0xEFF40000     0xEFFFFFFF      u-boot (current bank)           768KB
-0xEFF20000     0xEFF3FFFF      u-boot env (current bank)       128KB
+0xEFF40000     0xEFFFFFFF      U-Boot (current bank)           768KB
+0xEFF20000     0xEFF3FFFF      U-Boot env (current bank)       128KB
 0xEFF00000     0xEFF1FFFF      FMAN Ucode (current bank)       128KB
-0xEF300000     0xEFF3FFFF      rootfs (alternate bank)         12MB + 256KB
+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
-0xEDF40000     0xEDFFFFFF      u-boot (alternate bank)         768KB
-0xEDF20000     0xEDF3FFFF      u-boot env (alternate bank)     128KB
+0xEDF40000     0xEDFFFFFF      U-Boot (alternate bank)         768KB
+0xEDF20000     0xEDF3FFFF      U-Boot env (alternate bank)     128KB
 0xEDF00000     0xEDF1FFFF      FMAN ucode (alternate bank)     128KB
-0xED300000     0xEDF3FFFF      rootfs (current bank)           12MB+256MB
+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
@@ -246,7 +246,7 @@ Various Software configurations/environment variables/commands
 --------------------------------------------------------------
 The below commands apply to both B4860QDS and B4420QDS.
 
-1. U-boot environment variable hwconfig
+1. U-Boot environment variable hwconfig
    The default hwconfig is:
        hwconfig=fsl_ddr:ctlr_intlv=null,bank_intlv=cs0_cs1;usb1:
                                        dr_mode=host,phy_type=ulpi
@@ -267,7 +267,7 @@ The below commands apply to both B4860QDS and B4420QDS.
 4. To change personality of board
    For changing personality from B4860 to B4420
        1)Boot from vbank0
-       2)Flash vbank2 with b4420 rcw and u-boot
+       2)Flash vbank2 with b4420 rcw and U-Boot
        3)Give following commands to uboot prompt
           => mw.b ffdf0040 0x30;
           => mw.b ffdf0010 0x00;
@@ -309,7 +309,7 @@ The below commands apply to both B4860QDS and B4420QDS.
 
    When using [DEFAULT] RCW, which including 2 * 1G SGMII on board and 2 * 1G
    SGMII on SGMII riser card.
-   Under U-boot these network interfaces are recognized as:
+   Under U-Boot these network interfaces are recognized as:
    FM1@DTSEC3, FM1@DTSEC4, FM1@DTSEC5 and FM1@DTSEC6.
 
    On Linux the interfaces are renamed as:
@@ -322,9 +322,45 @@ The below commands apply to both B4860QDS and B4420QDS.
    Serdes protocosl tested:
    0x18, 0x9e (serdes1, serdes2)
 
-   Under U-boot these network interfaces are recognized as:
+   Under U-Boot these network interfaces are recognized as:
    FM1@DTSEC3, FM1@DTSEC4 and  e1000#0.
 
    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