; Configure the System Manger to remap the flash
; The Memory Bank Control Registers must be set using store multpiles
; Set up a stack in internal sram to preserve the original register contents
LDR r2, =remap_temp
MOV r1, pc
LDR r3, =remap_EndSysMapJump
remap_temp
MOV lr, #0
CMP r2, r1
LDRGT lr, =ROM_Start;ROM_Start=0x7F000000,remap后，ROM的地址
SUB r3, r3, r2
ADD r1, r1, r3
ADD lr, lr, r1
; Load in the target values into the control registers
ADRL r0, remap_SystemInitData
LDMIA r0, {r1-r6}
LDR r0, =EBI_Ctrl
; Now run critical jump code
STMIA r0, {r1-r6}
MOV pc, lr
remap_EndSysMapJump
remap_SystemInitData
; Default sdram configuration
DCD 0x000530C0 ; EBICON : not need to change.
DCD 0xFE040080 ; ROMCON(Flash) -Unknown type:0xFE000FF0, A29LV800: 0xFE020080, W28J160: 0xFE030080
DCD 0x000090E4 ; SDCONF0(SDRAM) - 8M(2Mx32): 0x000090E3, 4M(1Mx16x2):0x00009062, 16M(4Mx16x2):0x000090E4
DCD 0x020090E4 ; SDCONF1 - The same as SDCONF0 with proper base address
DCD 0x0000014B ; SDTIME0 - not need to change
DCD 0x0000014B ; SDTIME1 - not need to change
DCB "@SYSTEM_INIT_CFG" ; A key word for future useage
ALIGN |
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