summaryrefslogtreecommitdiffstats
path: root/sbe/image/pm_pibmem_repair.S
blob: 26cca971e49b9df9ce3c1566c89783285d9e183f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
#include "sbe_link.H"
#include "pk.h"

.set d0 , 0
        .text
        .section .loader_text, "ax", @progbits

_pibmemRepair:

        _liw     %r3, SBE_FIXED_SECTION                  # Fixed Section Location
        _liw     %r9, SBE_SEEPROM_BASE_ORIGIN
        lwz      r8, 0(r3)                               # offset of Fixed section
        adde     r8, r8, r9                              # add base address to offset to get absolute address
        lis      r5, 0x8
        ori      r5, r5 , 0x800B                         #point to repair reg 0 addr
        lis      r0, 0x4000                              # load repair #0 with 0x4000_0000 --> enable fence and repr_mux_sel is disabled
        stvd     d0, 0(r5)
        lvd      d0, 0(r8)                               # r8 was pointing to attributes
        stvd     d0, 1(r5)                               # store repair reg 1
        lvd      d0, 8(r8)                               # r8 was pointing to attributes
        stvd     d0, 2(r5)                               # store repair reg 2
        lvd      d0, 16(r8)                               # r8 was pointing to attributes
        stvd     d0, 3(r5)                               # store repair reg 3
        lis      r0, 0x8000                              # load repair #0 with 0x8000_0000 --> disable fence and repr_mux_sel is enabled
        stvd d0 , 0(r5)

###################################################################
########### Update DBG_LCL_REG to enable trace ####################
###################################################################

        lis      r5, 0xc000                              # local_reg_addr (R5 = C0000120)
        ori      r5, r5, 0x0120
        andi.    r0, r0, 0x0
        andi.    r1, r1, 0x0
        oris     r0, r0, 0x8A00                 # set the bit 0 to enable the debug blot-on
        stvd     d0, 0(r5)                              # DBG_LCL_REG

        blr                                             # back to pm_loader

OpenPOWER on IntegriCloud