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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-01-18 09:48:38 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-01-18 10:01:52 +0100 |
| commit | 7f7b09ca2e79a4773e0189a44d5708dfb91772d2 (patch) | |
| tree | 0de690f2078109352decb7b189d426f5e1bfef07 | |
| parent | fstests: Generating .scn (Screen Shots) #4 (diff) | |
| download | rtems-7f7b09ca2e79a4773e0189a44d5708dfb91772d2.tar.bz2 | |
bsp/gen83xx: Disable caches in bsp_restart()
| -rw-r--r-- | c/src/lib/libbsp/powerpc/gen83xx/startup/bsprestart.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/startup/bsprestart.c b/c/src/lib/libbsp/powerpc/gen83xx/startup/bsprestart.c index c09547872c..4e27c4e6c0 100644 --- a/c/src/lib/libbsp/powerpc/gen83xx/startup/bsprestart.c +++ b/c/src/lib/libbsp/powerpc/gen83xx/startup/bsprestart.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008-2012 embedded brains GmbH. All rights reserved. + * Copyright (c) 2008-2013 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Obere Lagerstr. 30 @@ -13,12 +13,34 @@ */ #include <bsp.h> +#include <bsp/u-boot.h> + +#include <libcpu/powerpc-utility.h> void bsp_restart(void *addr) { rtems_interrupt_level level; void (*start)(void) = addr; + #ifdef HAS_UBOOT + const void *mem_begin = (const void *) bsp_uboot_board_info.bi_memstart; + size_t mem_size = bsp_uboot_board_info.bi_memsize; + #else /* HAS_UBOOT */ + const void *mem_begin = bsp_ram_start; + size_t mem_size = (size_t) bsp_ram_size; + #endif /* HAS_UBOOT */ + uint32_t hid0; rtems_interrupt_disable(level); + + hid0 = PPC_SPECIAL_PURPOSE_REGISTER(HID0); + + if ((hid0 & HID0_DCE) != 0) { + rtems_cache_flush_multiple_data_lines(mem_begin, mem_size); + } + + hid0 &= ~(HID0_DCE | HID0_ICE); + + PPC_SET_SPECIAL_PURPOSE_REGISTER(HID0, hid0); + (*start)(); } |