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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-10 11:39:43 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-22 16:27:02 +0200 |
| commit | 43cc2b4daf1eb6e6aff2db26c07e84910cfea0cb (patch) | |
| tree | 54ecc230bd97eaea8e8e99272def6bb95181dc09 /c/src/lib/libbsp/powerpc/qoriq/start/start.S | |
| parent | bsp/qoriq: Use LA to load an address (diff) | |
| download | rtems-43cc2b4daf1eb6e6aff2db26c07e84910cfea0cb.tar.bz2 | |
bsp/qoriq: Add basic 64-bit support
Update #3082.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/start/start.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/start/start.S | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index 0a2af7a200..85bcb3afcb 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -7,7 +7,7 @@ */ /* - * Copyright (c) 2010, 2016 embedded brains GmbH. All rights reserved. + * Copyright (c) 2010, 2017 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -115,8 +115,10 @@ _start: LA r4, bsp_section_bss_size bl bsp_start_zero +#ifndef __powerpc64__ /* Set up EABI and SYSV environment */ bl __eabi +#endif /* Clear command line */ li r3, 0 @@ -124,7 +126,7 @@ _start: bl boot_card .Lcopy: - cmpw r3, r4 + PPC_REG_CMP r3, r4 beqlr b memcpy @@ -134,6 +136,13 @@ _start: * the boot loader. */ +#ifdef __powerpc64__ + mfmsr r0 + oris r0, r0, MSR_CM >> 16 + mtmsr r0 + isync +#endif + /* Disable decrementer */ mfspr r0, BOOKE_TCR LWI r4, BOOKE_TCR_DIE @@ -159,11 +168,15 @@ _start: mtspr HID0, r0 #endif +#ifdef __powerpc64__ + LA32 r2, .TOC. +#else /* Invalidate TLS anchor */ li r2, 0 /* Set small-data anchor */ LA r13, _SDA_BASE_ +#endif SET_SELF_CPU_CONTROL r4, r5 @@ -282,7 +295,7 @@ _start_thread: /* Initialize start stack */ GET_SELF_CPU_CONTROL r3 - lwz r3, PER_CPU_INTERRUPT_STACK_HIGH(r3) + PPC_REG_LOAD r3, PER_CPU_INTERRUPT_STACK_HIGH(r3) subi r1, r3, PPC_MINIMUM_STACK_FRAME_SIZE clrrwi r1, r1, PPC_STACK_ALIGN_POWER li r0, 0 |