mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-18 21:21:37 +00:00
powerpc/mpc85xx: modify the functionality clear_bss and aligning the end address of the BSS
There will clear the BSS in the function clear_bss(), the reset address of the BSS started from the __bss_start, and increased by four-byte increments, finally stoped depending on the address is equal to the _bss_end. If the end address __bss_end is not alignment to 4byte, it will be an infinite loop. 1. The reset action stoped depending on the reset address is greater than or equal the end address of the BSS. 2. The end address of the BSS should be 4byte aligned. Because the reset unit is 4 Bytes. This patch is on top of the patch "powerpc/mpc85xx: support application without resetvec segment in the linker script". Signed-off-by: Ying Zhang <b40530@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
parent
5df572f013
commit
67ad0d52df
2 changed files with 3 additions and 1 deletions
|
@ -1795,7 +1795,7 @@ clear_bss:
|
|||
stw r0,0(r3)
|
||||
addi r3,r3,4
|
||||
cmplw 0,r3,r4
|
||||
bne 5b
|
||||
blt 5b
|
||||
6:
|
||||
|
||||
mr r3,r9 /* Init Data pointer */
|
||||
|
|
|
@ -92,10 +92,12 @@ SECTIONS
|
|||
*/
|
||||
. |= 0x10;
|
||||
|
||||
. = ALIGN(4);
|
||||
__bss_start = .;
|
||||
.bss : {
|
||||
*(.sbss*)
|
||||
*(.bss*)
|
||||
}
|
||||
. = ALIGN(4);
|
||||
__bss_end = .;
|
||||
}
|
||||
|
|
Loading…
Add table
Reference in a new issue