diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/slof/lowmem.S | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/slof/lowmem.S')
| -rw-r--r-- | qemu/roms/SLOF/slof/lowmem.S | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/lowmem.S b/qemu/roms/SLOF/slof/lowmem.S new file mode 100644 index 000000000..9aaa9f75c --- /dev/null +++ b/qemu/roms/SLOF/slof/lowmem.S @@ -0,0 +1,69 @@ +/****************************************************************************** + * Copyright (c) 2004, 2008 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *****************************************************************************/ + +#include <cpu.h> +#include <xvect.h> + + .globl _start + /* All exception vectors *******************/ +_start: + .org 0x100 + /* check if Master / Slave *****************/ + /* Master will go to XVECT_M_HANDLER */ + /* Slave will go to XVECT_S_HANDLER */ +#ifdef SECONDARY_CPUS_STOPPED + ld r3,XVECT_S_HANDLER(0) + mfspr r0, PIR + cmpwi r0, 0 + bne 0f +#endif + ld r3,XVECT_M_HANDLER(0) +0: + mtctr r3 + li r0,0x100 + bctr + + /* FIXME: Also need 0280, 0380, 0f20, etc. */ + + .irp i, 0x0200,0x0280,0x0300,0x0380,0x0400,0x0480,0x0500,0x0600,0x0700, \ + 0x0800,0x0900,0x0a00,0x0b00,0x0c00,0x0d00,0x0e00,0x0f00, \ + 0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700, \ + 0x1800,0x1900,0x1a00,0x1b00,0x1c00,0x1d00,0x1e00,0x1f00, \ + 0x2000,0x2100,0x2200,0x2300,0x2400,0x2500,0x2600,0x2700, \ + 0x2800,0x2900,0x2a00,0x2b00,0x2c00,0x2d00,0x2e00,0x2f00 + .org \i + + /* enable this if you get exceptions before the console works */ + /* this will allow using the hardware debugger to see where */ + /* it traps, and with what register values etc. */ + // b $ + + mtsprg 0,r0 + mfctr r0 + mtsprg 2,r0 + mflr r0 + mtsprg 3,r0 + ld r0, XVECT_M_HANDLER(0) + mtctr r0 + li r0,\i + bctr + .endr + + + .org XVECT_M_HANDLER + .quad 0 + + .org XVECT_S_HANDLER + .quad 0 + + .org XVECT_TOPADDR + .byte 0x36 # to fill out to exactly 16kB |