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nds32: Remove the redundant assignment 

For early version, the value of r2 register was used to display
a character on UART when error occurred. Remove these r2 assignments
because we no longer show the character.

Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
This commit is contained in:
Zong Li 2018-10-17 21:15:51 +08:00 committed by Greentime Hu
parent 651022382c
commit 2e95c4d672
1 changed files with 0 additions and 2 deletions
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2
arch/nds32/kernel/head.S
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@ -130,14 +130,12 @@ _image_size_check:
* *
* direct mapping is not supported now. * direct mapping is not supported now.
*/ */
li $r2, 't'
beqz $r6, __error ! MMU_CFG.TBW = 0 is direct mappin beqz $r6, __error ! MMU_CFG.TBW = 0 is direct mappin
addi $r0, $r0, #0x2 ! MMU_CFG.TBS value -> meaning addi $r0, $r0, #0x2 ! MMU_CFG.TBS value -> meaning
sll $r0, $r6, $r0 ! entries = k-way * n-set sll $r0, $r6, $r0 ! entries = k-way * n-set
mul $r6, $r0, $r5 ! max size = entries * page size mul $r6, $r0, $r5 ! max size = entries * page size
/* check kernel image size */ /* check kernel image size */
la $r3, (_end - PAGE_OFFSET) la $r3, (_end - PAGE_OFFSET)
li $r2, 's'
bgt $r3, $r6, __error bgt $r3, $r6, __error
li $r2, #(PHYS_OFFSET + TLB_DATA_kernel_text_attr) li $r2, #(PHYS_OFFSET + TLB_DATA_kernel_text_attr)