diff options
Diffstat (limited to 'board/integratorap/lowlevel_init.S')
| -rw-r--r-- | board/integratorap/lowlevel_init.S | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/board/integratorap/lowlevel_init.S b/board/integratorap/lowlevel_init.S index 1aacbf4a7a..ab9589c95c 100644 --- a/board/integratorap/lowlevel_init.S +++ b/board/integratorap/lowlevel_init.S @@ -67,17 +67,17 @@ lowlevel_init: !defined (CONFIG_CM940T) #ifdef CONFIG_CM_MULTIPLE_SSRAM - /* set simple mapping */ + /* set simple mapping */ and r2,r2,#CMMASK_MAP_SIMPLE -#endif /* #ifdef CONFIG_CM_MULTIPLE_SSRAM */ +#endif /* #ifdef CONFIG_CM_MULTIPLE_SSRAM */ #ifdef CONFIG_CM_TCRAM - /* disable TCRAM */ + /* disable TCRAM */ and r2,r2,#CMMASK_TCRAM_DISABLE -#endif /* #ifdef CONFIG_CM_TCRAM */ +#endif /* #ifdef CONFIG_CM_TCRAM */ #if defined (CONFIG_CM926EJ_S) || defined (CONFIG_CM1026EJ_S) || \ - defined (CONFIG_CM1136JF_S) + defined (CONFIG_CM1136JF_S) and r2,r2,#CMMASK_LE @@ -89,7 +89,7 @@ lowlevel_init: #endif /* ARM102xxE value */ - /* read CM_INIT */ + /* read CM_INIT */ mov r0, #CM_BASE ldr r1, [r0, #OS_INIT] /* check against desired bit setting */ @@ -125,28 +125,28 @@ init_reg_OK: .globl dram_query dram_query: stmfd r13!,{r4-r6,lr} - /* set up SDRAM info */ + /* set up SDRAM info */ /* - based on example code from the CM User Guide */ mov r0, #CM_BASE readspdbit: - ldr r1, [r0, #OS_SDRAM] /* read the SDRAM register */ - and r1, r1, #0x20 /* mask SPD bit (5) */ - cmp r1, #0x20 /* test if set */ + ldr r1, [r0, #OS_SDRAM] /* read the SDRAM register */ + and r1, r1, #0x20 /* mask SPD bit (5) */ + cmp r1, #0x20 /* test if set */ bne readspdbit setupsdram: - add r0, r0, #OS_SPD /* address the copy of the SDP data */ - ldrb r1, [r0, #3] /* number of row address lines */ - ldrb r2, [r0, #4] /* number of column address lines */ - ldrb r3, [r0, #5] /* number of banks */ - ldrb r4, [r0, #31] /* module bank density */ - mul r5, r4, r3 /* size of SDRAM (MB divided by 4) */ - mov r5, r5, ASL#2 /* size in MB */ - mov r0, #CM_BASE /* reload for later code */ - cmp r5, #0x10 /* is it 16MB? */ + add r0, r0, #OS_SPD /* address the copy of the SDP data */ + ldrb r1, [r0, #3] /* number of row address lines */ + ldrb r2, [r0, #4] /* number of column address lines */ + ldrb r3, [r0, #5] /* number of banks */ + ldrb r4, [r0, #31] /* module bank density */ + mul r5, r4, r3 /* size of SDRAM (MB divided by 4) */ + mov r5, r5, ASL#2 /* size in MB */ + mov r0, #CM_BASE /* reload for later code */ + cmp r5, #0x10 /* is it 16MB? */ bne not16 - mov r6, #0x2 /* store size and CAS latency of 2 */ + mov r6, #0x2 /* store size and CAS latency of 2 */ b writesize not16: @@ -197,17 +197,17 @@ cm_remap: orr r1, r1, #CMMASK_REMAP /* set remap and led bits */ str r1, [r0, #OS_CTRL] - /* Now 0x00000000 is writeable, replace the vectors */ - ldr r0, =_start /* r0 <- start of vectors */ - ldr r2, =_armboot_start /* r2 <- past vectors */ - sub r1,r1,r1 /* destination 0x00000000 */ + /* Now 0x00000000 is writeable, replace the vectors */ + ldr r0, =_start /* r0 <- start of vectors */ + ldr r2, =_armboot_start /* r2 <- past vectors */ + sub r1,r1,r1 /* destination 0x00000000 */ copy_vec: - 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] */ + 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] */ ble copy_vec - ldmfd r13!,{r4-r10,pc} /* back to caller */ + ldmfd r13!,{r4-r10,pc} /* back to caller */ #endif /* #ifdef CONFIG_CM_REMAP */ |