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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-07-27 15:16:36 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-07-28 10:12:28 +0200 |
| commit | b615e9b3eee2608ec9982c16f9cf4551124f4c4e (patch) | |
| tree | b3e3e3c529ef43901590fe77872f46ede562b6e6 /c/src/lib/libbsp/powerpc/qoriq/start/start.S | |
| parent | psxmmap01/test_helper.c: Use correct printf format for size_t (diff) | |
| download | rtems-b615e9b3eee2608ec9982c16f9cf4551124f4c4e.tar.bz2 | |
bsp/qoriq: Simplify initialization
Do not flush/invalidate the caches. Instead enable the cache during the
low-level initialization and perform an explicit cache flush for the
read-only and fast-text sections.
Update #3082.
Update #3085.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/start/start.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/start/start.S | 39 |
1 files changed, 7 insertions, 32 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index d9a8a39a7c..0dc303dfdb 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -53,37 +53,6 @@ _start: bl .Linitearly bl bsp_fdt_copy -#ifdef QORIQ_HAS_WRITE_BACK_L1_CACHE - /* - * See PowerPC e500 Core Family Reference Manual, 11.5, L1 Data Cache - * Flushing. - */ - LWI r3, 12 * 128 - mtctr r3 - LWI r4, bsp_section_bss_begin -1: - dcbz r0, r4 - addi r4, r4, 32 - bdnz 1b -#endif - - bl qoriq_l1cache_invalidate - -#ifdef QORIQ_CLUSTER_1_L2CSR0 - LWI r3, QORIQ_CLUSTER_1_L2CSR0 - bl qoriq_l2cache_flush_invalidate -#endif - -#ifdef QORIQ_CLUSTER_2_L2CSR0 - LWI r3, QORIQ_CLUSTER_2_L2CSR0 - bl qoriq_l2cache_flush_invalidate -#endif - -#ifdef QORIQ_CLUSTER_3_L2CSR0 - LWI r3, QORIQ_CLUSTER_3_L2CSR0 - bl qoriq_l2cache_flush_invalidate -#endif - /* Get start stack */ LWI START_STACK, start_stack_end @@ -94,12 +63,18 @@ _start: LWI r4, bsp_section_fast_text_load_begin LWI r5, bsp_section_fast_text_size bl .Lcopy + LWI r3, bsp_section_fast_text_begin + LWI r4, bsp_section_fast_text_size + bl rtems_cache_flush_multiple_data_lines /* Copy read-only data */ LWI r3, bsp_section_rodata_begin LWI r4, bsp_section_rodata_load_begin LWI r5, bsp_section_rodata_size bl .Lcopy + LWI r3, bsp_section_rodata_begin + LWI r4, bsp_section_rodata_size + bl rtems_cache_flush_multiple_data_lines /* Copy fast data */ LWI r3, bsp_section_fast_data_begin @@ -206,7 +181,7 @@ _start: /* Add TS1 entry for the first 4GiB of RAM */ li r3, SCRATCH_TLB li r4, FSL_EIS_MAS1_TS - li r5, FSL_EIS_MAS2_I + li r5, FSL_EIS_MAS2_M li r6, FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SW | FSL_EIS_MAS3_SX li r7, 0 li r8, 0 |