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
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
-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
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