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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-01 08:41:07 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-08-22 16:27:02 +0200 |
| commit | 0ae1916bcfbf5cc73ed9d932e1d58bc550514b9b (patch) | |
| tree | d26d504d452827cdd9be8ddad8407d5b29a3e9b9 | |
| parent | bsp/qoriq: Add basic 64-bit support (diff) | |
| download | rtems-0ae1916bcfbf5cc73ed9d932e1d58bc550514b9b.tar.bz2 | |
bsp/qoriq: Copy FDT later
We need a ready to use TOC section before we can call bsp_fdt_copy().
Update #3082.
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/start/start.S | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index 85bcb3afcb..bf1e3b91dc 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -37,6 +37,7 @@ #define INITIAL_MSR r14 #define START_STACK r15 #define SAVED_LINK_REGISTER r16 +#define FDT_REGISTER r17 .globl _start #ifdef RTEMS_SMP @@ -50,8 +51,8 @@ .section ".bsp_start_text", "ax" _start: + mr FDT_REGISTER, r3 bl .Linitearly - bl bsp_fdt_copy /* Get start stack */ LA START_STACK, start_stack_end @@ -72,6 +73,12 @@ _start: LA r4, bsp_section_rodata_load_begin LA r5, bsp_section_rodata_size bl .Lcopy + + /* Copy FDT into read-only data */ + mr r3, FDT_REGISTER + bl bsp_fdt_copy + + /* Flush read-only data */ LA r3, bsp_section_rodata_begin LA r4, bsp_section_rodata_size bl rtems_cache_flush_multiple_data_lines @@ -131,11 +138,6 @@ _start: b memcpy .Linitearly: - /* - * Do not use r3 here, since it holds the FDT base pointer provided by - * the boot loader. - */ - #ifdef __powerpc64__ mfmsr r0 oris r0, r0, MSR_CM >> 16 |