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

[oweals/u-boot.git] / arch / arm / cpu / lh7a40x / start.S

diff --git a/arch/arm/cpu/lh7a40x/start.S b/arch/arm/cpu/lh7a40x/start.S
index 239ad47a4f1bea0175c59a9197c1e4eca7dcc5af..fd8a40b8aa4a2aea201be7cf6d1d4c2d07658164 100644 (file)
--- a/arch/arm/cpu/lh7a40x/start.S
+++ b/arch/arm/cpu/lh7a40x/start.S
@@ -75,12 +75,6 @@ _fiq:                        .word fiq
 _TEXT_BASE:
        .word   CONFIG_SYS_TEXT_BASE
 
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-.globl _armboot_start
-_armboot_start:
-       .word _start
-#endif
-
 /*
  * These are defined in the board-specific linker script.
  */
@@ -104,7 +98,6 @@ FIQ_STACK_START:
        .word 0x0badc0de
 #endif
 
-#if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 /* IRQ stack memory (calculated at run-time) + 8 bytes */
 .globl IRQ_STACK_START_IN
 IRQ_STACK_START_IN:
@@ -214,7 +207,6 @@ stack_setup:
        cmp     r0, r6
        beq     clear_bss
 
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
 copy_loop:
        ldmia   r0!, {r9-r10}           /* copy from source address [r0]    */
        stmia   r6!, {r9-r10}           /* copy to   target address [r1]    */
@@ -241,7 +233,6 @@ fixloop:
        cmp     r2, r3
        blo     fixloop
 #endif
-#endif /* #ifndef CONFIG_SKIP_RELOCATE_UBOOT */
 
 clear_bss:
 #ifndef CONFIG_PRELOADER
@@ -278,100 +269,6 @@ clbss_l:str       r2, [r0]                /* clear loop...                    */
 
 _board_init_r: .word board_init_r
 
-#else /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-/*
- * the actual reset code
- */
-
-reset:
-       /*
-        * set the cpu to SVC32 mode
-        */
-       mrs     r0,cpsr
-       bic     r0,r0,#0x1f
-       orr     r0,r0,#0xd3
-       msr     cpsr,r0
-
-#define pWDTCTL                0x80001400  /* Watchdog Timer control register */
-#define pINTENC                0x8000050C  /* Interupt-Controller enable clear register */
-#define pCLKSET                0x80000420  /* clock divisor register */
-
-       /* disable watchdog, set watchdog control register to
-        * all zeros (default reset)
-        */
-       ldr     r0, =pWDTCTL
-       mov     r1, #0x0
-       str     r1, [r0]
-
-       /*
-        * mask all IRQs by setting all bits in the INTENC register (default)
-        */
-       mov     r1, #0xffffffff
-       ldr     r0, =pINTENC
-       str     r1, [r0]
-
-       /* FCLK:HCLK:PCLK = 1:2:2 */
-       /* default FCLK is 200 MHz, using 14.7456 MHz fin */
-       ldr     r0, =pCLKSET
-       ldr r1, =0x0004ee39
-@      ldr r1, =0x0005ee39     @ 1: 2: 4
-       str     r1, [r0]
-
-       /*
-        * we do sys-critical inits only at reboot,
-        * not when booting from ram!
-        */
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-       bl      cpu_init_crit
-#endif
-
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
-relocate:                              /* relocate U-Boot to RAM           */
-       adr     r0, _start              /* r0 <- current position of code   */
-       ldr     r1, _TEXT_BASE          /* test if we run from flash or RAM */
-       cmp     r0, r1                  /* don't reloc during debug         */
-       beq     stack_setup
-
-       ldr     r2, _armboot_start
-       ldr     r3, _bss_start
-       sub     r2, r3, r2              /* r2 <- size of armboot            */
-       add     r2, r0, r2              /* r2 <- source end address         */
-
-copy_loop:
-       ldmia   r0!, {r3-r10}           /* copy from source address [r0]    */
-       stmia   r1!, {r3-r10}           /* copy to   target address [r1]    */
-       cmp     r0, r2                  /* until source end address [r2]    */
-       blo     copy_loop
-#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
-
-       /* Set up the stack                                                 */
-stack_setup:
-       ldr     r0, _TEXT_BASE          /* upper 128 KiB: relocated uboot   */
-       sub     r0, r0, #CONFIG_SYS_MALLOC_LEN  /* malloc area                      */
-       sub     r0, r0, #GENERATED_GBL_DATA_SIZE /* bdinfo                        */
-#ifdef CONFIG_USE_IRQ
-       sub     r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
-#endif
-       sub     sp, r0, #12             /* leave 3 words for abort-stack    */
-       bic     sp, sp, #7              /* 8-byte alignment for ABI compliance */
-
-clear_bss:
-       ldr     r0, _bss_start          /* find start of bss segment        */
-       @add    r0, r0, #4              /* start at first byte of bss       */
-                                       /*   why inc. 4 bytes past then?    */
-       ldr     r1, _bss_end            /* stop here                        */
-       mov     r2, #0x00000000         /* clear                            */
-
-clbss_l:str    r2, [r0]                /* clear loop...                    */
-       add     r0, r0, #4
-       cmp     r0, r1
-       blo     clbss_l
-
-       ldr     pc, _start_armboot
-
-_start_armboot:        .word start_armboot
-#endif /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
 /*
  *************************************************************************
  *
@@ -460,13 +357,7 @@ cpu_init_crit:
        .macro  bad_save_user_regs
        sub     sp, sp, #S_FRAME_SIZE
        stmia   sp, {r0 - r12}                  @ Calling r0-r12
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-       ldr     r2, _armboot_start
-       sub     r2, r2, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
-       sub     r2, r2, #(GENERATED_GBL_DATA_SIZE+8)  @ set base 2 words into abort stack
-#else
        ldr     r2, IRQ_STACK_START_IN
-#endif
        ldmia   r2, {r2 - r3}                   @ get pc, cpsr
        add     r0, sp, #S_FRAME_SIZE           @ restore sp_SVC
 
@@ -497,13 +388,7 @@ cpu_init_crit:
        .endm
 
        .macro get_bad_stack
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-       ldr     r13, _armboot_start             @ setup our mode stack
-       sub     r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
-       sub     r13, r13, #(GENERATED_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
-#else
        ldr     r13, IRQ_STACK_START_IN         @ setup our mode stack
-#endif
 
        str     lr, [r13]                       @ save caller lr / spsr
        mrs     lr, spsr