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authorShakeeb <shakeebbk@in.ibm.com>2016-08-27 10:50:49 -0500
committerSachin Gupta <sgupta2m@in.ibm.com>2016-08-30 06:01:06 -0400
commitf2d94b5f809410300fe10dc9d0786790018463a0 (patch)
tree467f90297b0eb7c5c6672653d778ed4734c0d5a3 /src/boot
parent49b557dcae32250e8e06c4de895c0b7ba0e8009e (diff)
downloadtalos-sbe-f2d94b5f809410300fe10dc9d0786790018463a0.tar.gz
talos-sbe-f2d94b5f809410300fe10dc9d0786790018463a0.zip
SBE code restructure: sbe -> src rename
Change-Id: I6e4378d0e71a00ed2b239658d43f180df2a9b748 RTC:159709 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/28875 Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com> Reviewed-by: RAJA DAS <rajadas2@in.ibm.com> Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
Diffstat (limited to 'src/boot')
-rw-r--r--src/boot/Makefile86
-rw-r--r--src/boot/bootfiles.mk34
-rw-r--r--src/boot/loader_l1.S82
-rw-r--r--src/boot/loader_l2.c88
-rw-r--r--src/boot/loader_l2_setup.S57
-rw-r--r--src/boot/otprom_init.S178
-rw-r--r--src/boot/pibmem_repair.S62
7 files changed, 587 insertions, 0 deletions
diff --git a/src/boot/Makefile b/src/boot/Makefile
new file mode 100644
index 00000000..95e29143
--- /dev/null
+++ b/src/boot/Makefile
@@ -0,0 +1,86 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/boot/Makefile $
+#
+# OpenPOWER sbe Project
+#
+# Contributors Listed Below - COPYRIGHT 2016
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+export SUB_OBJDIR = /boot
+
+include img_defs.mk
+include bootfiles.mk
+
+INCLUDES += -I$(IMAGE_SRCDIR)
+
+OBJS := $(addprefix $(OBJDIR)/, $(BOOT_OBJECTS))
+BOOTOBJS += $(OBJS)
+LINK_SCRIPT_LOADER = $(addprefix $(OBJDIR)/, linkscriptloader)
+LINK_SCRIPT_OTPROM = $(addprefix $(OBJDIR)/, linkscriptotprom)
+
+all: $(OBJS) \
+ $(OBJDIR)/$(IMAGE_LOADER_NAME).bin $(OBJDIR)/$(IMAGE_OTPROM_NAME).bin
+
+$(OBJS) $(OBJS:.o=.d): | $(OBJDIR)
+
+# Loader Objects
+LOADER_OBJS := $(addprefix $(OBJDIR)/, $(BASE_LOADER_OBJECTS))
+#Otprom Loader Objects
+OTPROM_LOADER_OBJS := $(addprefix $(OBJDIR)/, $(OTPROM_LOADER_OBJECTS))
+# ---- Otprom Image ------
+$(OBJDIR)/$(IMAGE_OTPROM_NAME).bin $(OBJDIR)/$(IMAGE_OTPROM_NAME).dis: $(OBJDIR)/$(IMAGE_OTPROM_NAME).out
+ $(OBJCOPY) -O binary $< $(OBJDIR)/$(IMAGE_OTPROM_NAME).bin `/usr/bin/nm $(OBJDIR)/$(IMAGE_OTPROM_NAME).out | grep "A _loader_end" | cut -d " " -f 1`
+ $(OBJDUMP) -S $< > $(OBJDIR)/$(IMAGE_OTPROM_NAME).dis
+
+#create a linked ELF executable
+$(OBJDIR)/$(IMAGE_OTPROM_NAME).out: $(OTPROM_LOADER_OBJS) $(LINK_SCRIPT_OTPROM)
+ $(LD) -e base_loader -T$(LINK_SCRIPT_OTPROM) -Map $(OBJDIR)/$(IMAGE_OTPROM_NAME).map -Bstatic -o $(OBJDIR)/$(IMAGE_OTPROM_NAME).out $(OTPROM_LOADER_OBJS)
+
+# pass the link command file through the C preprocessor to evaluate macros
+# and remove comments
+$(LINK_SCRIPT_OTPROM): $(IMAGE_SRCDIR)/linkotprom.cmd
+ $(CPP) -I. -E -x c++ -P $(DEFS) $(IMAGE_SRCDIR)/linkotprom.cmd -o $(LINK_SCRIPT_OTPROM)
+
+# ---- Loader Image ------
+$(OBJDIR)/$(IMAGE_LOADER_NAME).bin $(OBJDIR)/$(IMAGE_LOADER_NAME).dis: $(OBJDIR)/$(IMAGE_LOADER_NAME).out
+ $(OBJCOPY) -O binary $< $(OBJDIR)/$(IMAGE_LOADER_NAME).bin --pad-to 0x`/usr/bin/nm $(OBJDIR)/$(IMAGE_LOADER_NAME).out | grep "A _loader_end" | cut -d " " -f 1`
+ $(OBJDUMP) -S $< > $(OBJDIR)/$(IMAGE_LOADER_NAME).dis
+
+#create a linked ELF executable
+$(OBJDIR)/$(IMAGE_LOADER_NAME).out: $(LOADER_OBJS) $(LINK_SCRIPT_LOADER)
+ $(LD) -e base_loader -T$(LINK_SCRIPT_LOADER) -Map $(OBJDIR)/$(IMAGE_LOADER_NAME).map -Bstatic -o $(OBJDIR)/$(IMAGE_LOADER_NAME).out $(LOADER_OBJS)
+
+# pass the link command file through the C preprocessor to evaluate macros
+# and remove comments
+$(LINK_SCRIPT_LOADER): $(IMAGE_SRCDIR)/linkloader.cmd
+ $(CPP) -I. -E -x c++ -P $(DEFS) $(IMAGE_SRCDIR)/linkloader.cmd -o $(LINK_SCRIPT_LOADER)
+
+$(OBJDIR):
+ mkdir -p $(OBJDIR)
+
+.PHONY: clean all
+
+#clean the kernel directory first, then the application level clean
+clean:
+ rm -fr $(OBJDIR)
+
+ifneq ($(MAKECMDGOALS),clean)
+include $(OBJS:.o=.d)
+endif
+
+
diff --git a/src/boot/bootfiles.mk b/src/boot/bootfiles.mk
new file mode 100644
index 00000000..0836e59f
--- /dev/null
+++ b/src/boot/bootfiles.mk
@@ -0,0 +1,34 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/boot/bootfiles.mk $
+#
+# OpenPOWER sbe Project
+#
+# Contributors Listed Below - COPYRIGHT 2016
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+BOOTTOP-S-SOURCES = loader_l1.S
+
+BOOT_OBJECTS += $(BOOTTOP-S-SOURCES:.S=.o)
+
+BASE-LOADER-C-SOURCES = loader_l2.c
+BASE-LOADER-S-SOURCES = loader_l2_setup.S
+
+BASE_LOADER_OBJECTS = $(BASE-LOADER-C-SOURCES:.c=.o) $(BASE-LOADER-S-SOURCES:.S=.o)
+
+OTPROM-LOADER-S-SOURCES = otprom_init.S
+OTPROM_LOADER_OBJECTS = $(OTPROM-LOADER-S-SOURCES:.S=.o)
diff --git a/src/boot/loader_l1.S b/src/boot/loader_l1.S
new file mode 100644
index 00000000..1699b239
--- /dev/null
+++ b/src/boot/loader_l1.S
@@ -0,0 +1,82 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/boot/loader_l1.S $ */
+/* */
+/* OpenPOWER sbe Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2016 */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+
+ .nolist
+#include "pk.h"
+#include "sbe_link.H"
+ .list
+
+### ****************************************************************************
+### .loader_text - This section contains pm loader code
+### @TODO via RTC 136315
+### It also contains vector code. We can remove vector code
+### once OTPROM support for simics is in.
+### ****************************************************************************
+
+ .section .loader_text, "ax", @progbits
+
+ .global _pibmemRepair
+
+__vectors:
+
+ ############################################################
+ # 0x0040 : System Reset
+ ############################################################
+ .org __vectors + 0x0040
+
+__system_reset:
+ b __pmLoader
+
+
+__pmLoader:
+ bl _pibmemRepair
+ _liw %r3, SBE_LOADER_BASE_SECTION # Base Loader Section Location
+ _liw %r4, SBE_LOADER_BASE_ORIGIN # dest
+ _liw %r9, SBE_SEEPROM_BASE_ORIGIN
+ lwz r5, 4(r3) #size of image in bytes
+ li r6, 3
+ srw r5, r5, r6 # Number of double word transfers
+ mtctr r5 # set the counter for loop
+ lwz r8, 0(r3) # offset of baseloader section
+ adde r8, r8, r9 # add base address to offset to get absolute address
+
+copy_loop:
+ lvd d28, 0(r8)
+ stvd d28, 0(r4)
+ addi r8, r8, 8
+ addi r4, r4, 8
+ bdnz copy_loop
+
+ ############################################################
+ # SBE entry function is 4 byte number in image header
+ ############################################################
+
+ _liw %r3, SBE_SEEPROM_BASE_ORIGIN + SBE_LOADER_ENTRY_HEADER_OFFSET
+ lwz r6, 0(r3)
+ mtlr r6
+ blr
+
+ .epilogue __pmLoader
+
+#include "pibmem_repair.S"
diff --git a/src/boot/loader_l2.c b/src/boot/loader_l2.c
new file mode 100644
index 00000000..4f575bea
--- /dev/null
+++ b/src/boot/loader_l2.c
@@ -0,0 +1,88 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/boot/loader_l2.c $ */
+/* */
+/* OpenPOWER sbe Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2015,2016 */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+#include "sbeXipUtils.H"
+
+// Load section to destination address
+int32_t loadSection( P9XipSection * i_section, uint64_t *i_destAddr )
+{
+ uint32_t idx = 0;
+ uint64_t *seepromAddr = (uint64_t *)( g_headerAddr + i_section->iv_offset);
+ uint32_t sectionSize = i_section->iv_size;
+ for( idx = 0; idx < sectionSize; idx += 8 )
+ {
+ *i_destAddr = *seepromAddr;
+ i_destAddr++; seepromAddr++;
+
+ }
+ return 0;
+}
+
+// Function to load base image into PIBMEM
+int32_t base_loader()
+{
+ int32_t rc = 0;
+ P9XipHeader *hdr = getXipHdr();
+
+ uint64_t *pibMemAddr = (uint64_t *)g_pibMemAddr;
+ uint64_t *tempPibMemAddr = (uint64_t *)g_pibMemAddr;
+ uint64_t *pibEndAddr = (uint64_t *)(SBE_LOADER_BASE_ORIGIN);
+
+ // Initialise complete PIBMEM with 0
+ // Though this is inefficient, this is quick fix to solve the
+ // HW write of data which is not 8 byte alligned. All write which
+ // are not 8 byte alligned, translates to read-modify-write. So
+ // if code does a write for 4 byte, first HW will read 8 bytes. If
+ // there is no data written there earlier and random data is present
+ // it can cause ecc errors.
+ // TODO via RTC 158797
+ // Though we may be able to optimise it, but than we have to put the
+ // logic in loadSection function which is not desired. So currently
+ // initialising all PIBMEM. If performance become concern during initial
+ // SBE load, we can optimise this.
+ // We have three options here in optimisation
+ // 1. Put this logic in SEEPROM loader ( pmloader ). This was we can
+ // reclaim space taken by base loader as stack/bss can grow in base
+ // loader section after image load.
+ // 2. Keep this code in PIBMEM. But do not initialise the memory taken
+ // by base image.
+ // 3. Do what is done in option 1 but only initialise memoty after base
+ // section to end of PIBMEM. This will involve some more hardcoding
+ // in seeprom loader.
+ // My preference will be option 1 but depends upon performance goals.
+ for( ; tempPibMemAddr < pibEndAddr; tempPibMemAddr++ )
+ {
+ *tempPibMemAddr = 0;
+ }
+
+ loadSection(&(hdr->iv_section[P9_XIP_SECTION_SBE_BASE]), pibMemAddr);
+ // Set the IVPR register. This is required so that interrupt vector table
+ // points to pk interfaces.
+ uint64_t data = (uint64_t)(SBE_BASE_ORIGIN) << 32;
+ PPE_STVD(g_ivprLoc, data);
+ // Jump to pk boot function
+ uint32_t addr = hdr->iv_kernelAddr;
+ JUMP_TO_ADDR(addr);
+
+ return rc;
+}
diff --git a/src/boot/loader_l2_setup.S b/src/boot/loader_l2_setup.S
new file mode 100644
index 00000000..99da6d5c
--- /dev/null
+++ b/src/boot/loader_l2_setup.S
@@ -0,0 +1,57 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/boot/loader_l2_setup.S $ */
+/* */
+/* OpenPOWER sbe Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2015,2016 */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+ .nolist
+#include "pk.h"
+ .list
+
+### ****************************************************************************
+### Do the initial setup for base loader
+###
+### ****************************************************************************
+
+__base_loader_setup:
+
+ ## Set up PowerPC EABI constant registers.
+
+ _liw %r2, _SDA2_BASE_
+ _liw %r13, _SDA_BASE_
+
+ ## The stack pointer is initialized for use by the remainder of the
+ ## initialization. The linker script defines the initial stack area.
+ ##
+ ## Stacks are always 8-byte aligned. A '0' is stored at the
+ ## stack pointer to indicate the end of the stack chain. Stack frames
+ ## always consist of at least 8 bytes - the backchain pointer and the
+ ## slot above the backchain pointer for the callee's LR.
+
+ _liw %r1, _BASE_LOADER_STACK_LIMIT
+ _clrfield %r1, %r1, 3, 29 # 8-byte align
+ li %r3, 0
+ li %r4, 0
+ stvd %r3, -8(%r1)
+
+ ## Call the base loader
+ bl base_loader
+
+ .epilogue __base_loader_setup
diff --git a/src/boot/otprom_init.S b/src/boot/otprom_init.S
new file mode 100644
index 00000000..719e158a
--- /dev/null
+++ b/src/boot/otprom_init.S
@@ -0,0 +1,178 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/boot/otprom_init.S $
+#
+# OpenPOWER sbe Project
+#
+# Contributors Listed Below - COPYRIGHT 2016
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+# # include "pk.h"
+.set r0 , 0
+.set r1 , 1
+.set r2 , 2
+.set r3 , 3
+.set r4 , 4
+.set r5 , 5
+.set r6 , 6
+.set r7 , 7
+.set r8 , 8
+.set d0 , 0
+.set d2 , 2
+.set d7 , 7
+.global __reserved
+__reserved:
+#############################################################
+################## OTPROM location data contents ############
+# SBE Seeprom Config_0 18068
+# SBE Seeprom Config_1 18069
+# SBE Seeprom Config_2 1806A
+# SBE Seeprom Config_3 1806B
+# Magic number stored in OTP 1806C
+# Reserved 1806D
+# Reserved 1806E
+# Reserved 1806F
+# 0x0040 : otprom loader
+#############################################################
+_start:
+#lis r4 , 0x50 #dummy instruction
+.org __reserved + 0x0040
+.macro .pm_otprom_fixed_system
+ .section .fixed, "a", @progbits
+__seeprom0_config_reg:
+ .quad 0x80A91C7100000000
+__seeprom1_config_reg:
+ .quad 0x80AB1C7100001C71
+__seeprom2_config_reg:
+ .quad 0x80AD1C71000038E2
+__seeprom3_config_reg:
+ .quad 0x80AF1C7100005553
+__otprom_magic_num:
+ .quad 0x584950205345504D
+__sbe_config_reg:
+ .quad 0x000A800030000000
+ .endm
+oos_start: #R4 --> A0000 R5 --> 5003F R6 --> C000_0818
+ lis r4 , 0xA
+ ori r4 , r4 , 0x0
+ stvd d0 , 1(r4) #Write reset reg . A0001
+ lis r5 , 0x5 #Check the validity of scratch reg and then program the bit rate div
+ ori r5 , r5 , 0x0000
+ lvd d2 , 0x3F(r5) #loads scratch_8 and updates R5 to scratch_1
+ bb0wi r2 , 1 , oos_load_const_brd #checks if valid bit (bit1) is 1 if yes continue else branch
+ lvd d2 , 0x39(r5)
+ andis. r2 , r2 , 0xffff #delete last 2 bytes Confirmed first 2 bytes has Bit rate divisor
+
+oos_write_mode_reg:
+ lvd d0 , 6(r4) #D0 --> old mode reg and D2 --> has new brd
+ andi. r0 , r0 , 0xffff
+ or r0 , r0 , r2
+ stvd d0 , 6(r4) #Store mode register
+ lis r6 , 0xc000
+ ori r6 , r6, 0x0818 #Load clear address of local register FI2C_CFG
+ li r0 , 0xfff #Create the Clear mask
+ lis r1 , 0xf000
+ stvd d0 , 0(r6) #write to clear register of local register
+ rlwinm r3, r2, 12 , 0 , 3 #First move last nibble to R3 0:3
+ rlwinm r2, r2, 12 , 20, 31 #Store bit rate div in 20:35 location of local register 20:31
+ stvd d2 , -8(r6) #Set register = C0000810
+ b oos_write_mode_done
+
+oos_load_const_brd:
+ lis r2 , 0x3 #load constant BRD = 3 to first 2 bytes of R2
+ b oos_write_mode_reg
+
+oos_write_mode_done:
+
+oos_force_stop_to_both_ports:
+ lis r0 , 0x8000 #load 0x80000000 for port busy register write
+ stvd d0 , 0xE(r4) #Write port busy register to clear
+ andi. r0 , r0 ,0 #stop_command = 0x1000_0020_0000_0000
+ andi. r1 , r1 , 0
+ oris r0 , r0 , 0x1000
+ ori r0 , r0 , 0x0020
+ stvd d0 , 0(r4) #Write control register with Stop command
+
+oos_poll_status_bit_0:
+ lvd d2 , 2(r4) #Read Status register
+ bb1wi r3 , 0xc , oos_poll_status_bit_0
+ ori r0 , r0 , 0x0200 #stop_command = 0x1000_0220_0000_0000
+ stvd d0 , 0(r4) #write control register with stop command to port 1
+
+oos_poll_status_bit_1:
+ lvd d2 , 2(r4)
+ bb1wi r3 , 0xc , oos_poll_status_bit_1
+ lis r0 , 0xd8a9
+ ori r0 , r0 , 0x0090 #change the port number later after checking from the scratch register. Add the seeprom address pointer location by updating the R1
+ andi. r1 , r1 , 0x0 #Chose address 0x0 of SEEPROM : 0xA8
+
+oos_chk_port_num:
+ lvd d2 , 0x8(r5) #Read the port number from Selfboot control / status register ::
+ bb0wi r2 , 17 , oos_sel_prim_sprm #Check if backup seeprom select is '1' bit_17 according to Srinivas
+ ori r0 , r0 , 0x0200 #enable backup_sprm port
+ lvd d7, -24(r6) #load SBE_CONFIG local reg
+ oris r8 , r8 , 0x0200 #make bit 38 of sbe_config_reg bit '1'. (C0000800)
+ stvd d7, -24(r6) #Store SBE_CONFIG local reg
+
+oos_sel_prim_sprm:
+ stvd d0 , 0(r4) #write control register
+
+oos_poll_status_bit_2:
+ lvd d2 , 2(r4) #poll status reg
+ bb1wi r3 , 0xc , oos_poll_status_bit_2
+ lvd d0 , 3(r4) #Read data reg to get magic number
+
+oss_load_constant_magic_num: #Magic number of seeprom = 0x584950205345504D
+ lis r2 , 0x5849 #load constant otprom magic number
+ ori r2 , r2 , 0x5020
+ lis r3 , 0x5345
+ ori r3 , r3, 0x504d
+ cmplwbc 0, 2, r0, r2, oos_cmp_magic_fail
+ cmplwbc 0, 2, r1, r3, oos_cmp_magic_fail
+ lis r4 , 0x0001 #OTPROM address = 0xZZZZ_YYYY PIB_addr (R4 = 18070)
+ ori r4 , r4 , 0x8068
+ lis r5 , 0xc000 #local_reg_addr (R5 = C0000860)
+ ori r5 , r5 , 0x0860
+ lvd d0 , 0(r4)
+ stvd d0 , 0(r5) #Seeprom_0
+ lvd d0 , 1(r4)
+ stvd d0 , 32(r5) #Seeprom_1
+ lvd d0 , 2(r4)
+ stvd d0 , 64(r5) #Seeprom_2
+ lvd d0 , 3(r4)
+ stvd d0 , 96(r5) #Seeprom_3
+ lvd d0 , 5(r4) #SBE Config
+ stvd d0 , -96(r5)
+ ##### Branch to SEEPROM ###################
+ lis r4 , 0x8000 #Go and fetch the branch address from 0x8000_0001
+ ori r4 , r4 , 0x0008
+ lvd d0 , 0(r4)
+ mtctr r1
+ bctr #Branch to fetched address
+ ##### Branch to SEEPROM ###################
+ trap #FIXME hve to give branch to SEEPROM
+
+oos_cmp_magic_fail:
+ lis r5 , 0x5 #PIB_addr (R5 = 0x00050008)
+ ori r5 , r5 , 0x0000
+ lvd d0 , 8(r5)
+ andi. r1 , r1 , 0xfff0
+ ori r1 , r1 , 0x000e #59:63 : Error message : E = Magic number mismatch
+ stvd d0 ,8(r5)
+ trap
+
+.pm_otprom_fixed_system
diff --git a/src/boot/pibmem_repair.S b/src/boot/pibmem_repair.S
new file mode 100644
index 00000000..98b1ecfa
--- /dev/null
+++ b/src/boot/pibmem_repair.S
@@ -0,0 +1,62 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/boot/pibmem_repair.S $ */
+/* */
+/* OpenPOWER sbe Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2016 */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+#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
+
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