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>
diff --git a/arch/m68k/cpu/mcf5445x/start.S b/arch/m68k/cpu/mcf5445x/start.S
index ba38678..bc48ca0 100644
--- a/arch/m68k/cpu/mcf5445x/start.S
+++ b/arch/m68k/cpu/mcf5445x/start.S
@@ -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 @@
#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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
move.l #2000, %d1
jsr asm_delay
-#endif /* CONFIG_MCF5445x */
+#endif /* CONFIG_MCF5445x */
#ifdef CONFIG_CF_SBF
/*
@@ -484,7 +469,7 @@
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 @@
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 @@
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 @@
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 @@
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 @@
#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 @@
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 @@
* 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 @@
*/
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 @@
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