diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2013-05-02 12:28:31 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2013-05-09 09:01:21 +0200 |
| commit | 4323cd48a13a3dfef0e3674e7c0165c9b1a37b55 (patch) | |
| tree | e870965d252c149c6470a0c46f2e892110a5d8bb /arch/microblaze/kernel | |
| parent | ef9cb4e19b81887f93f200f500071688f773cc55 (diff) | |
| download | op-kernel-dev-4323cd48a13a3dfef0e3674e7c0165c9b1a37b55.zip op-kernel-dev-4323cd48a13a3dfef0e3674e7c0165c9b1a37b55.tar.gz | |
microblaze: Do not use r6 in head.S
r6 stores pointer to ramdisk and shouldn't
be used before it is passed to machine_early_init.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze/kernel')
| -rw-r--r-- | arch/microblaze/kernel/head.S | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index eef84de..fcc797f 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -112,16 +112,16 @@ no_fdt_arg: * copy command line directly to cmd_line placed in data section. */ beqid r5, skip /* Skip if NULL pointer */ - or r6, r0, r0 /* incremment */ + or r11, r0, r0 /* incremment */ ori r4, r0, cmd_line /* load address of command line */ tophys(r4,r4) /* convert to phys address */ ori r3, r0, COMMAND_LINE_SIZE - 1 /* number of loops */ _copy_command_line: /* r2=r5+r6 - r5 contain pointer to command line */ - lbu r2, r5, r6 + lbu r2, r5, r11 beqid r2, skip /* Skip if no data */ - sb r2, r4, r6 /* addr[r4+r6]= r2*/ - addik r6, r6, 1 /* increment counting */ + sb r2, r4, r11 /* addr[r4+r6]= r2 */ + addik r11, r11, 1 /* increment counting */ bgtid r3, _copy_command_line /* loop for all entries */ addik r3, r3, -1 /* decrement loop */ addik r5, r4, 0 /* add new space for command line */ @@ -131,13 +131,13 @@ skip: #ifdef NOT_COMPILE /* save bram context */ - or r6, r0, r0 /* incremment */ + or r11, r0, r0 /* incremment */ ori r4, r0, TOPHYS(_bram_load_start) /* save bram context */ ori r3, r0, (LMB_SIZE - 4) _copy_bram: - lw r7, r0, r6 /* r7 = r0 + r6 */ - sw r7, r4, r6 /* addr[r4 + r6] = r7*/ - addik r6, r6, 4 /* increment counting */ + lw r7, r0, r11 /* r7 = r0 + r6 */ + sw r7, r4, r11 /* addr[r4 + r6] = r7 */ + addik r11, r11, 4 /* increment counting */ bgtid r3, _copy_bram /* loop for all entries */ addik r3, r3, -4 /* descrement loop */ #endif @@ -303,8 +303,8 @@ jump_over2: * the exception vectors, using a 4k real==virtual mapping. */ /* Use temporary TLB_ID for LMB - clear this temporary mapping later */ - ori r6, r0, MICROBLAZE_LMB_TLB_ID - mts rtlbx,r6 + ori r11, r0, MICROBLAZE_LMB_TLB_ID + mts rtlbx,r11 ori r4,r0,(TLB_WR | TLB_EX) ori r3,r0,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K)) |
