m68k: code reformatting for all start.S files

This patch is style-related only, to reformat all the start.S code,
actually not following a coherent style inside single files and
between different cpu start.S files.

Linux format has been respected, as
  - max line width at 80 columns
  - one 8 cols tab between asm instructions and operands
  - inline comments, where any, fixed at col 41

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
master
Angelo Dureghello 8 years ago
parent 08887ed450
commit 5c928d0204
  1. 153
      arch/m68k/cpu/mcf5227x/start.S
  2. 130
      arch/m68k/cpu/mcf523x/start.S
  3. 163
      arch/m68k/cpu/mcf52x2/start.S
  4. 73
      arch/m68k/cpu/mcf530x/start.S
  5. 118
      arch/m68k/cpu/mcf532x/start.S
  6. 185
      arch/m68k/cpu/mcf5445x/start.S
  7. 128
      arch/m68k/cpu/mcf547x_8x/start.S

@ -28,52 +28,37 @@
rte;
#if defined(CONFIG_CF_SBF)
#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + \
CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + \
CONFIG_SYS_INIT_RAM_ADDR)
#endif
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
#if defined(CONFIG_CF_SBF)
INITSP: .long 0 /* Initial SP */
INITPC: .long ASM_DRAMINIT /* Initial PC */
INITSP: .long 0 /* Initial SP */
INITPC: .long ASM_DRAMINIT /* Initial PC */
#else
INITSP: .long 0 /* Initial SP */
INITPC: .long _START /* Initial PC */
INITSP: .long 0 /* Initial SP */
INITPC: .long _START /* Initial PC */
#endif
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
vector05: .long _FAULT /* Reserved */
vector06: .long _FAULT /* Reserved */
vector07: .long _FAULT /* Reserved */
vector08: .long _FAULT /* Privilege Violation */
vector09: .long _FAULT /* Trace */
vector0A: .long _FAULT /* Unimplemented A-Line */
vector0B: .long _FAULT /* Unimplemented F-Line */
vector0C: .long _FAULT /* Debug Interrupt */
vector0D: .long _FAULT /* Reserved */
vector0E: .long _FAULT /* Format Error */
vector0F: .long _FAULT /* Unitialized Int. */
vector02_0F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
vector18: .long _FAULT /* Spurious Interrupt */
vector19: .long _FAULT /* Autovector Level 1 */
vector1A: .long _FAULT /* Autovector Level 2 */
vector1B: .long _FAULT /* Autovector Level 3 */
vector1C: .long _FAULT /* Autovector Level 4 */
vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
vector18_1F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
#if !defined(CONFIG_CF_SBF)
/* TRAP #0 - #15 */
@ -120,15 +105,16 @@ vector192_255:
#if defined(CONFIG_CF_SBF)
/* Image header: chksum 4 bytes, len 4 bytes, img dest 4 bytes */
asm_sbf_img_hdr:
.long 0x00000000 /* checksum, not yet implemented */
.long 0x00020000 /* image length */
.long 0x00000000 /* checksum, not yet implemented */
.long 0x00020000 /* image length */
.long CONFIG_SYS_TEXT_BASE /* image to be relocated at */
asm_dram_init:
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
movec %d0, %RAMBAR1 /* init Rambar */
movec %d0, %RAMBAR1 /* init Rambar */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
clr.l %sp@-
/* Must disable global address */
move.l #0xFC008000, %a1
@ -142,7 +128,6 @@ asm_dram_init:
* Dram Initialization
* a1, a2, and d0
*/
/* mscr sdram */
move.l #0xFC0A4074, %a1
move.b #(CONFIG_SYS_SDRAM_DRV_STRENGTH), (%a1)
nop
@ -336,15 +321,15 @@ asm_dspi_rd_status:
move.b (%a3), %d1
rts
#endif /* CONFIG_CF_SBF */
#endif /* CONFIG_CF_SBF */
.text
.text
. = 0x400
.globl _start
.globl _start
_start:
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
#if defined(CONFIG_CF_SBF)
@ -366,17 +351,17 @@ _start:
movec %d0, %ACR1
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
/*
* if configured, malloc_f arena will be reserved first,
@ -386,20 +371,23 @@ _start:
bsr board_init_f_alloc_reserve
/* update stack and frame-pointers */
move.l %d0, %sp
move.l %sp, %fp
move.l %d0, %sp
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
/* run low-level CPU init code (from flash) */
bsr cpu_init_f
clr.l %sp@-
bsr cpu_init_f /* run low-level CPU init code (from flash) */
clr.l %sp@-
bsr board_init_f /* run low-level board init code (from flash) */
/* run low-level board init code (from flash) */
bsr board_init_f
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -412,23 +400,23 @@ _start:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -458,7 +446,7 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
move.l %a1,%a5 /* * fix got pointer register a5 */
move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
@ -472,39 +460,40 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
bra _fault
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

@ -28,41 +28,25 @@
rte;
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
vector05: .long _FAULT /* Reserved */
vector06: .long _FAULT /* Reserved */
vector07: .long _FAULT /* Reserved */
vector08: .long _FAULT /* Privilege Violation */
vector09: .long _FAULT /* Trace */
vector0A: .long _FAULT /* Unimplemented A-Line */
vector0B: .long _FAULT /* Unimplemented F-Line */
vector0C: .long _FAULT /* Debug Interrupt */
vector0D: .long _FAULT /* Reserved */
vector0E: .long _FAULT /* Format Error */
vector0F: .long _FAULT /* Unitialized Int. */
vector02_0F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
vector18: .long _FAULT /* Spurious Interrupt */
vector19: .long _FAULT /* Autovector Level 1 */
vector1A: .long _FAULT /* Autovector Level 2 */
vector1B: .long _FAULT /* Autovector Level 3 */
vector1C: .long _FAULT /* Autovector Level 4 */
vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
vector18_1F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* TRAP #0 - #15 */
vector20_2F:
@ -104,13 +88,13 @@ vector192_255:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.text
.text
.globl _start
.globl _start
_start:
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
move.l #CONFIG_SYS_FLASH_BASE, %d0
@ -120,22 +104,22 @@ _start:
movec %d0, %RAMBAR1
/* invalidate and disable cache */
move.l #CF_CACR_CINV, %d0 /* Invalidate cache cmd */
movec %d0, %CACR /* Invalidate cache */
move.l #CF_CACR_CINV, %d0 /* Invalidate cache cmd */
movec %d0, %CACR /* Invalidate cache */
nop
move.l #0, %d0
movec %d0, %ACR0
movec %d0, %ACR1
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
@ -149,25 +133,26 @@ _start:
jsr (%a1)
/* update stack and frame-pointers */
move.l %d0, %sp
move.l %sp, %fp
move.l %d0, %sp
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
move.l %d0, -(%sp)
move.l #board_init_f_init_reserve, %a1
jsr (%a1)
/* run low-level CPU init code (from flash) */
move.l #cpu_init_f, %a1
jsr (%a1)
move.l #cpu_init_f, %a1
jsr (%a1)
/* run low-level board init code (from flash) */
clr.l %sp@-
move.l #board_init_f, %a1
jsr (%a1)
clr.l %sp@-
move.l #board_init_f, %a1
jsr (%a1)
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -180,23 +165,23 @@ _start:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -240,39 +225,40 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
bra _fault
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

@ -34,12 +34,12 @@
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
.long 0x00000000 /* Flash offset is 0 until we setup CS0 */
#if defined(CONFIG_M5282) && (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
.long _start - CONFIG_SYS_TEXT_BASE
@ -85,24 +85,24 @@ _vectors:
#endif
.text
.text
#if defined(CONFIG_SYS_INT_FLASH_BASE) && \
(defined(CONFIG_M5282) || defined(CONFIG_M5281))
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
.long 0x55AA55AA,0xAA55AA55 /* CFM Backdoorkey */
.long 0xFFFFFFFF /* all sectors protected */
.long 0x00000000 /* supervisor/User restriction */
.long 0x00000000 /* programm/data space restriction */
.long 0x00000000 /* Flash security */
#endif
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
.long 0x55AA55AA,0xAA55AA55 /* CFM Backdoorkey */
.long 0xFFFFFFFF /* all sectors protected */
.long 0x00000000 /* supervisor/User restriction */
.long 0x00000000 /* programm/data space restriction */
.long 0x00000000 /* Flash security */
#endif
.globl _start
#endif
.globl _start
_start:
nop
nop
move.w #0x2700,%sr
move.w #0x2700,%sr
#if defined(CONFIG_M5208)
/* Initialize RAMBAR: locate SRAM and validate it */
@ -111,22 +111,24 @@ _start:
#endif
#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5253)
move.l #(CONFIG_SYS_MBAR + 1), %d0 /* set MBAR address + valid flag */
/* set MBAR address + valid flag */
move.l #(CONFIG_SYS_MBAR + 1), %d0
move.c %d0, %MBAR
/*** The 5249 has MBAR2 as well ***/
#ifdef CONFIG_SYS_MBAR2
move.l #(CONFIG_SYS_MBAR2 + 1), %d0 /* Get MBAR2 address */
movec %d0, #0xc0e /* Set MBAR2 */
/* Get MBAR2 address */
move.l #(CONFIG_SYS_MBAR2 + 1), %d0
/* Set MBAR2 */
movec %d0, #0xc0e
#endif
move.l #(CONFIG_SYS_INIT_RAM_ADDR + 1), %d0
movec %d0, %RAMBAR0
#endif /* CONFIG_M5272 || CONFIG_M5249 || CONFIG_M5253 */
#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
/* Initialize IPSBAR */
move.l #(CONFIG_SYS_MBAR + 1), %d0 /* set IPSBAR address + valid flag */
/* set MBAR address + valid flag */
move.l #(CONFIG_SYS_MBAR + 1), %d0
move.l %d0, 0x40000000
/* Initialize RAMBAR1: locate SRAM and validate it */
@ -135,22 +137,24 @@ _start:
#if defined(CONFIG_M5282)
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
/* Setup code in SRAM to initialize FLASHBAR, if start from internal Flash */
move.l #(_flashbar_setup-CONFIG_SYS_INT_FLASH_BASE), %a0
move.l #(_flashbar_setup_end-CONFIG_SYS_INT_FLASH_BASE), %a1
move.l #(CONFIG_SYS_INIT_RAM_ADDR), %a2
/*
* Setup code in SRAM to initialize FLASHBAR,
* if start from internal Flash
*/
move.l #(_flashbar_setup-CONFIG_SYS_INT_FLASH_BASE), %a0
move.l #(_flashbar_setup_end-CONFIG_SYS_INT_FLASH_BASE), %a1
move.l #(CONFIG_SYS_INIT_RAM_ADDR), %a2
_copy_flash:
move.l (%a0)+, (%a2)+
cmp.l %a0, %a1
bgt.s _copy_flash
jmp CONFIG_SYS_INIT_RAM_ADDR
move.l (%a0)+, (%a2)+
cmp.l %a0, %a1
bgt.s _copy_flash
jmp CONFIG_SYS_INIT_RAM_ADDR
_flashbar_setup:
/* Initialize FLASHBAR: locate internal Flash and validate it */
move.l #(CONFIG_SYS_INT_FLASH_BASE + CONFIG_SYS_INT_FLASH_ENABLE), %d0
movec %d0, %FLASHBAR
jmp _after_flashbar_copy.L /* Force jump to absolute address */
jmp _after_flashbar_copy.L /* Force jump to absolute address */
_flashbar_setup_end:
nop
_after_flashbar_copy:
@ -162,7 +166,8 @@ _after_flashbar_copy:
#endif
#endif
/* if we come from a pre-loader we have no exception table and
/*
* if we come from a pre-loader we have no exception table and
* therefore no VBR to set
*/
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
@ -175,8 +180,8 @@ _after_flashbar_copy:
#endif
#ifdef CONFIG_M5275
/* Initialize IPSBAR */
move.l #(CONFIG_SYS_MBAR + 1), %d0 /* set IPSBAR address + valid flag */
/* set MBAR address + valid flag */
move.l #(CONFIG_SYS_MBAR + 1), %d0
move.l %d0, 0x40000000
/* movec %d0, %MBAR */
@ -186,17 +191,17 @@ _after_flashbar_copy:
#endif
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
/*
* if configured, malloc_f arena will be reserved first,
@ -204,28 +209,29 @@ _after_flashbar_copy:
*/
move.l %sp, -(%sp)
move.l #board_init_f_alloc_reserve, %a1
jsr (%a1)
jsr (%a1)
/* update stack and frame-pointers */
move.l %d0, %sp
move.l %sp, %fp
move.l %d0, %sp
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
move.l %d0, -(%sp)
move.l #board_init_f_init_reserve, %a1
jsr (%a1)
jsr (%a1)
/* run low-level CPU init code (from flash) */
move.l #cpu_init_f, %a1
jsr (%a1)
move.l #cpu_init_f, %a1
jsr (%a1)
/* run low-level board init code (from flash) */
clr.l %sp@-
move.l #board_init_f, %a1
jsr (%a1)
clr.l %sp@-
move.l #board_init_f, %a1
jsr (%a1)
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -238,22 +244,22 @@ _after_flashbar_copy:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -283,7 +289,7 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
move.l %a1,%a5 /* * fix got pointer register a5 */
move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
@ -297,43 +303,44 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
#if defined(DEBUG) && (CONFIG_SYS_TEXT_BASE != CONFIG_SYS_INT_FLASH_BASE) && \
defined(CONFIG_SYS_HALT_BEFOR_RAM_JUMP)
halt
#endif
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
bra _fault
.globl _exc_handler
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

@ -36,12 +36,12 @@
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
/* Flash offset is 0 until we setup CS0 */
.long 0x00000000
#if defined(CONFIG_M5307) && \
@ -89,12 +89,13 @@ _vectors:
#endif
.text
.globl _start
.text
.globl _start
_start:
nop
nop
move.w #0x2700,%sr
move.w #0x2700,%sr
/* set MBAR address + valid flag */
move.l #(CONFIG_SYS_MBAR + 1), %d0
@ -104,11 +105,11 @@ _start:
move.c %d0, %RAMBAR
/* DS 4.8.2 (Cache Organization) invalidate and disable cache */
move.l #CF_CACR_CINVA, %d0
movec %d0, %CACR
move.l #0, %d0
movec %d0, %ACR0
movec %d0, %ACR1
move.l #CF_CACR_CINVA, %d0
movec %d0, %CACR
move.l #0, %d0
movec %d0, %ACR0
movec %d0, %ACR1
/*
* if we come from a pre-loader we have no exception table and
@ -127,10 +128,10 @@ _start:
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
/*
* if configured, malloc_f arena will be reserved first,
@ -140,23 +141,23 @@ _start:
bsr board_init_f_alloc_reserve
/* update stack and frame-pointers */
move.l %d0, %sp
move.l %sp, %fp
move.l %d0, %sp
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
/* run low-level CPU init code (from flash) */
bsr cpu_init_f
bsr cpu_init_f
/* run low-level board init code (from flash) */
clr.l %sp@-
bsr board_init_f
clr.l %sp@-
bsr board_init_f
/* board_init_f() does not return */
/*--------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -165,7 +166,7 @@ _start:
* after relocating the monitor code.
*
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
@ -209,7 +210,8 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE), %a1
/* * fix got pointer register a5 */
/* fix got pointer register a5 */
move.l %a1,%a5
move.l %a0, %a2
@ -236,33 +238,34 @@ clear_bss:
#endif
jsr (%a1)
/*--------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*--------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION
.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
.ascii CONFIG_IDENT_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION
.ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
.ascii CONFIG_IDENT_STRING, "\0"
.align 4

@ -31,42 +31,27 @@
rte;
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
vector05: .long _FAULT /* Reserved */
vector06: .long _FAULT /* Reserved */
vector07: .long _FAULT /* Reserved */
vector08: .long _FAULT /* Privilege Violation */
vector09: .long _FAULT /* Trace */
vector0A: .long _FAULT /* Unimplemented A-Line */
vector0B: .long _FAULT /* Unimplemented F-Line */
vector0C: .long _FAULT /* Debug Interrupt */
vector0D: .long _FAULT /* Reserved */
vector0E: .long _FAULT /* Format Error */
vector0F: .long _FAULT /* Unitialized Int. */
vector02_0F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
vector18: .long _FAULT /* Spurious Interrupt */
vector19: .long _FAULT /* Autovector Level 1 */
vector1A: .long _FAULT /* Autovector Level 2 */
vector1B: .long _FAULT /* Autovector Level 3 */
vector1C: .long _FAULT /* Autovector Level 4 */
vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
vector18_1F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* TRAP #0 - #15 */
vector20_2F:
@ -109,13 +94,13 @@ vector192_255:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
#endif /* !defined(CONFIG_MONITOR_IS_IN_RAM) */
.text
.text
.globl _start
.globl _start
_start:
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
#if !defined(CONFIG_MONITOR_IS_IN_RAM)
/* Set vector base register at the beginning of the Flash */
@ -142,14 +127,14 @@ _start:
#endif
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
@ -167,13 +152,14 @@ _start:
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
move.l %d0, -(%sp)
move.l #board_init_f_init_reserve, %a1
jsr (%a1)
/* run low-level CPU init code (from flash) */
move.l #cpu_init_f, %a1
jsr (%a1)
move.l #cpu_init_f, %a1
jsr (%a1)
/* run low-level board init code (from flash) */
clr.l %sp@-
move.l #board_init_f, %a1
@ -181,7 +167,7 @@ _start:
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -194,23 +180,23 @@ _start:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -240,7 +226,7 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
move.l %a1,%a5 /* * fix got pointer register a5 */
move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
@ -254,38 +240,40 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
.globl version_string
/******************************************************************************/
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

@ -33,62 +33,47 @@
rte;
#if defined(CONFIG_SERIAL_BOOT)
#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + \
CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_DRAMINIT_N (asm_dram_init - CONFIG_SYS_TEXT_BASE)
#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + \
CONFIG_SYS_INIT_RAM_ADDR)
#endif
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
#if defined(CONFIG_SERIAL_BOOT)
INITSP: .long 0 /* Initial SP */
INITSP: .long 0 /* Initial SP */
#ifdef CONFIG_CF_SBF
INITPC: .long ASM_DRAMINIT /* Initial PC */
INITPC: .long ASM_DRAMINIT /* Initial PC */
#endif
#ifdef CONFIG_SYS_NAND_BOOT
INITPC: .long ASM_DRAMINIT_N /* Initial PC */
INITPC: .long ASM_DRAMINIT_N /* Initial PC */
#endif
#else
INITSP: .long 0 /* Initial SP */
INITPC: .long _START /* Initial PC */
INITSP: .long 0 /* Initial SP */
INITPC: .long _START /* Initial PC */
#endif
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
vector05: .long _FAULT /* Reserved */
vector06: .long _FAULT /* Reserved */
vector07: .long _FAULT /* Reserved */
vector08: .long _FAULT /* Privilege Violation */
vector09: .long _FAULT /* Trace */
vector0A: .long _FAULT /* Unimplemented A-Line */
vector0B: .long _FAULT /* Unimplemented F-Line */
vector0C: .long _FAULT /* Debug Interrupt */
vector0D: .long _FAULT /* Reserved */
vector0E: .long _FAULT /* Format Error */
vector0F: .long _FAULT /* Unitialized Int. */
vector02_0F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
vector18: .long _FAULT /* Spurious Interrupt */
vector19: .long _FAULT /* Autovector Level 1 */
vector1A: .long _FAULT /* Autovector Level 2 */
vector1B: .long _FAULT /* Autovector Level 3 */
vector1C: .long _FAULT /* Autovector Level 4 */
vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
vector18_1F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
#if !defined(CONFIG_SERIAL_BOOT)
@ -136,12 +121,12 @@ vector192_255:
#if defined(CONFIG_SERIAL_BOOT)
/* Image header: chksum 4 bytes, len 4 bytes, img dest 4 bytes */
asm_sbf_img_hdr:
.long 0x00000000 /* checksum, not yet implemented */
.long 0x00040000 /* image length */
.long 0x00000000 /* checksum, not yet implemented */
.long 0x00040000 /* image length */
.long CONFIG_SYS_TEXT_BASE /* image to be relocated at */
asm_dram_init:
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
#ifdef CONFIG_SYS_NAND_BOOT
/* for assembly stack */
@ -149,7 +134,7 @@ asm_dram_init:
movec %d0, %RAMBAR1
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
clr.l %sp@-
#endif
#ifdef CONFIG_CF_SBF
@ -160,11 +145,11 @@ asm_dram_init:
movec %d0, %RAMBAR1
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* invalidate and disable cache */
move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
@ -176,7 +161,7 @@ asm_dram_init:
movec %d0, %ACR3
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
clr.l %sp@-
/* Must disable global address */
move.l #0xFC008000, %a1
@ -185,7 +170,7 @@ asm_dram_init:
move.l #(CONFIG_SYS_CS0_CTRL), (%a1)
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
#endif /* CONFIG_CF_SBF */
#endif /* CONFIG_CF_SBF */
#ifdef CONFIG_MCF5441x
/* TC: enable all peripherals,
@ -193,9 +178,9 @@ asm_dram_init:
move.l #0xFC04002D, %a1
#if defined(CONFIG_CF_SBF)
move.b #23, (%a1) /* dspi */
move.b #23, (%a1) /* dspi */
#endif
move.b #46, (%a1) /* DDR */
move.b #46, (%a1) /* DDR */
/* slew settings */
move.l #0xEC094060, %a1
@ -365,7 +350,7 @@ dramsz_loop:
move.l #2000, %d1
jsr asm_delay
#endif /* CONFIG_MCF5445x */
#endif /* CONFIG_MCF5445x */
#ifdef CONFIG_CF_SBF
/*
@ -484,7 +469,7 @@ asm_dspi_rd_status:
move.b (%a3), %d1
rts
#endif /* CONFIG_CF_SBF */
#endif /* CONFIG_CF_SBF */
#ifdef CONFIG_SYS_NAND_BOOT
/* copy 4 boot pages to dram as soon as possible */
@ -509,13 +494,13 @@ asm_nand_init:
move.l %d1, (%a1)
/* initialize general use internal ram */
move.l #0, %d0
move.l #(CACR_STATUS), %a1 /* CACR */
move.l #(ICACHE_STATUS), %a2 /* icache */
move.l #(DCACHE_STATUS), %a3 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l %d0, (%a3)
move.l #0, %d0
move.l #(CACR_STATUS), %a1 /* CACR */
move.l #(ICACHE_STATUS), %a2 /* icache */
move.l #(DCACHE_STATUS), %a3 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l %d0, (%a3)
/* invalidate and disable cache */
move.l #0x01004100, %d0 /* Invalidate cache cmd */
@ -571,7 +556,7 @@ asm_nand_init:
move.l #4, %d2 /* start at 4 */
move.l #0xFC0FFF04, %a0 /* cmd2 */
move.l #0xFC0FFF0C, %a1 /* rar */
move.l #(CONFIG_SYS_TEXT_BASE + 0xF80), %a2 /* dst */
move.l #(CONFIG_SYS_TEXT_BASE + 0xF80), %a2
asm_nand_read:
move.l #0x11000000, %d0 /* rar */
@ -621,14 +606,14 @@ asm_delay:
rts
#endif /* CONFIG_CF_SBF || CONFIG_NAND_U_BOOT */
.text
.text
. = 0x400
.globl _start
.globl _start
_start:
#if !defined(CONFIG_SERIAL_BOOT)
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
move.l #CONFIG_SYS_FLASH_BASE, %d0
@ -638,11 +623,11 @@ _start:
movec %d0, %RAMBAR1
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* invalidate and disable cache */
move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
@ -658,10 +643,10 @@ _start:
#endif
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
/*
* if configured, malloc_f arena will be reserved first,
@ -672,25 +657,26 @@ _start:
jsr (%a1)
/* update stack and frame-pointers */
move.l %d0, %sp
move.l %sp, %fp
move.l %d0, %sp
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
move.l %d0, -(%sp)
move.l #board_init_f_init_reserve, %a1
jsr (%a1)
/* run low-level CPU init code (from flash) */
move.l #cpu_init_f, %a1
jsr (%a1)
move.l #cpu_init_f, %a1
jsr (%a1)
/* run low-level board init code (from flash) */
clr.l %sp@-
move.l #board_init_f, %a1
jsr (%a1)
move.l #board_init_f, %a1
jsr (%a1)
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -703,23 +689,23 @@ _start:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -749,7 +735,7 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
move.l %a1,%a5 /* * fix got pointer register a5 */
move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
@ -763,39 +749,40 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
bra _fault
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

@ -28,41 +28,25 @@
rte;
.text
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
INITSP: .long 0x00000000 /* Initial SP */
INITPC: .long _START /* Initial PC */
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
vector05: .long _FAULT /* Reserved */
vector06: .long _FAULT /* Reserved */
vector07: .long _FAULT /* Reserved */
vector08: .long _FAULT /* Privilege Violation */
vector09: .long _FAULT /* Trace */
vector0A: .long _FAULT /* Unimplemented A-Line */
vector0B: .long _FAULT /* Unimplemented F-Line */
vector0C: .long _FAULT /* Debug Interrupt */
vector0D: .long _FAULT /* Reserved */
vector0E: .long _FAULT /* Format Error */
vector0F: .long _FAULT /* Unitialized Int. */
vector02_0F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
vector18: .long _FAULT /* Spurious Interrupt */
vector19: .long _FAULT /* Autovector Level 1 */
vector1A: .long _FAULT /* Autovector Level 2 */
vector1B: .long _FAULT /* Autovector Level 3 */
vector1C: .long _FAULT /* Autovector Level 4 */
vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
vector18_1F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* TRAP #0 - #15 */
vector20_2F:
@ -104,13 +88,13 @@ vector192_255:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.text
.text
.globl _start
.globl _start
_start:
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
move.l #CONFIG_SYS_FLASH_BASE, %d0
@ -122,7 +106,7 @@ _start:
move.l #(CONFIG_SYS_INIT_RAM1_ADDR + CONFIG_SYS_INIT_RAM1_CTRL), %d0
movec %d0, %RAMBAR1
move.l #CONFIG_SYS_MBAR, %d0 /* set MBAR address */
move.l #CONFIG_SYS_MBAR, %d0 /* set MBAR address */
move.c %d0, %MBAR
/* invalidate and disable cache */
@ -135,17 +119,17 @@ _start:
movec %d0, %ACR3
/* initialize general use internal ram */
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
move.l #0, %d0
move.l #(ICACHE_STATUS), %a1 /* icache */
move.l #(DCACHE_STATUS), %a2 /* icache */
move.l %d0, (%a1)
move.l %d0, (%a2)
/* put relocation table address to a5 */
move.l #__got_start, %a5
move.l #__got_start, %a5
/* setup stack initially on top of internal static ram */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
/*
* if configured, malloc_f arena will be reserved first,
@ -159,16 +143,19 @@ _start:
move.l %sp, %fp
/* initialize reserved area */
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
move.l %d0, -(%sp)
bsr board_init_f_init_reserve
/* run low-level CPU init code (from flash) */
jbsr cpu_init_f
jbsr cpu_init_f /* run low-level CPU init code (from flash) */
clr.l %sp@-
jbsr board_init_f /* run low-level board init code (from flash) */
/* run low-level board init code (from flash) */
clr.l %sp@-
jbsr board_init_f
/* board_init_f() does not return */
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/*
* void relocate_code (addr_sp, gd, addr_moni)
@ -181,23 +168,23 @@ _start:
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
.globl relocate_code
relocate_code:
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
link.w %a6,#0
move.l 8(%a6), %sp /* set new stack pointer */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
move.l 16(%a6), %a0 /* Save copy of Destination Address */
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
move.l #CONFIG_SYS_MONITOR_BASE, %a1
move.l #__init_end, %a2
move.l %a0, %a3
/* copy the code to RAM */
1:
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
move.l (%a1)+, (%a3)+
cmp.l %a1,%a2
bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
@ -227,7 +214,7 @@ clear_bss:
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
move.l %a1,%a5 /* * fix got pointer register a5 */
move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
@ -241,39 +228,40 @@ clear_bss:
bne 7b
/* calculate relative jump to board_init_r in ram */
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
move.l %a0, %a1
add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
move.l %a0,-(%sp) /* dest_addr */
move.l %d0,-(%sp) /* gd */
jsr (%a1)
/*------------------------------------------------------------------------------*/
/******************************************************************************/
/* exception code */
.globl _fault
.globl _fault
_fault:
bra _fault
.globl _exc_handler
bra _fault
.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
bsr exc_handler
bsr exc_handler
addql #4,%sp
RESTORE_ALL
.globl _int_handler
.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
bsr int_handler
bsr int_handler
addql #4,%sp
RESTORE_ALL
/*------------------------------------------------------------------------------*/
/******************************************************************************/
.globl version_string
.globl version_string
version_string:
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4
.ascii U_BOOT_VERSION_STRING, "\0"
.align 4

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