diff options
Diffstat (limited to 'src/boot')
| -rw-r--r-- | src/boot/loader_l1.S | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/src/boot/loader_l1.S b/src/boot/loader_l1.S index 020a2912..eb35478f 100644 --- a/src/boot/loader_l1.S +++ b/src/boot/loader_l1.S @@ -5,7 +5,7 @@ /* */ /* OpenPOWER sbe Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2016 */ +/* Contributors Listed Below - COPYRIGHT 2016,2017 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -56,8 +56,7 @@ __l1Loader: _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 + srawi r5, r5, 3 # Number of double word transfers mtctr r5 # set the counter for loop lwz r8, 0(r3) # offset of l2loader section adde r8, r8, r9 # add base address to offset to get absolute address @@ -69,6 +68,8 @@ copy_loop: addi r4, r4, 8 bdnz copy_loop + # initilaise empty section of L1 loader with 0 + bl __initPibmemL1Area ############################################################ # SBE entry function is 4 byte number in image header ############################################################ @@ -80,4 +81,24 @@ copy_loop: .epilogue __l1Loader +# initialise the PIBMEM section for l1 loader with 0 + +__initPibmemL1Area: + _liw %r3, SBE_LOADER_BASE_SECTION # Base Loader Section Location + _liw %r4, SBE_LOADER_BASE_ORIGIN # dest + lwz r5, 4(r3) #size of image in bytes + _liw %r6, SBE_LOADER_BASE_LENGTH #Max size of loader + add r4, r4, r5 + subf r5, r5, r6 + srawi r5, r5, 3 # Number of double word transfers + mtctr r5 # set the counter for loop + li r28, 0 + li r29, 0 +copy_loop_init: + stvd d28, 0(r4) + addi r4, r4, 8 + bdnz copy_loop_init + + blr + #include "pibmem_repair.S" |
