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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-05-02 11:41:22 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-05-03 17:30:55 +0200 |
commit | ecf7dd95647c689c123f2635f5f7e892ae305487 (patch) | |
tree | e9f30720b37f2cbdd6c981a2248a2f548784c0a0 /c/src/lib/libbsp/arm/lpc32xx | |
parent | bsps/arm: Support ARMv7 VMSA sections and control (diff) | |
download | rtems-ecf7dd95647c689c123f2635f5f7e892ae305487.tar.bz2 |
bsps/arm: Move CP15 start initialization
Diffstat (limited to 'c/src/lib/libbsp/arm/lpc32xx')
-rw-r--r-- | c/src/lib/libbsp/arm/lpc32xx/Makefile.am | 1 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/lpc32xx/preinstall.am | 4 | ||||
-rw-r--r-- | c/src/lib/libbsp/arm/lpc32xx/startup/bspstarthooks.c | 140 |
3 files changed, 24 insertions, 121 deletions
diff --git a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am index 166870c88a..1489efce3e 100644 --- a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am +++ b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am @@ -34,6 +34,7 @@ include_bsp_HEADERS += ../../shared/include/stackalloc.h include_bsp_HEADERS += ../../shared/include/uart-output-char.h include_bsp_HEADERS += ../../shared/tod.h include_bsp_HEADERS += ../shared/include/start.h +include_bsp_HEADERS += ../shared/include/arm-cp15-start.h include_bsp_HEADERS += ../shared/lpc/include/lpc-timer.h include_bsp_HEADERS += ../shared/lpc/include/lpc-dma.h include_bsp_HEADERS += ../shared/lpc/include/lpc-i2s.h diff --git a/c/src/lib/libbsp/arm/lpc32xx/preinstall.am b/c/src/lib/libbsp/arm/lpc32xx/preinstall.am index 43eb71b39a..fd69c55c4f 100644 --- a/c/src/lib/libbsp/arm/lpc32xx/preinstall.am +++ b/c/src/lib/libbsp/arm/lpc32xx/preinstall.am @@ -90,6 +90,10 @@ $(PROJECT_INCLUDE)/bsp/start.h: ../shared/include/start.h $(PROJECT_INCLUDE)/bsp $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/start.h PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/start.h +$(PROJECT_INCLUDE)/bsp/arm-cp15-start.h: ../shared/include/arm-cp15-start.h $(PROJECT_INCLUDE)/bsp/$(dirstamp) + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/arm-cp15-start.h +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/arm-cp15-start.h + $(PROJECT_INCLUDE)/bsp/lpc-timer.h: ../shared/lpc/include/lpc-timer.h $(PROJECT_INCLUDE)/bsp/$(dirstamp) $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/lpc-timer.h PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/lpc-timer.h diff --git a/c/src/lib/libbsp/arm/lpc32xx/startup/bspstarthooks.c b/c/src/lib/libbsp/arm/lpc32xx/startup/bspstarthooks.c index e828d8899c..03520624c8 100644 --- a/c/src/lib/libbsp/arm/lpc32xx/startup/bspstarthooks.c +++ b/c/src/lib/libbsp/arm/lpc32xx/startup/bspstarthooks.c @@ -7,10 +7,10 @@ */ /* - * Copyright (c) 2009-2011 embedded brains GmbH. All rights reserved. + * Copyright (c) 2009-2013 embedded brains GmbH. All rights reserved. * * embedded brains GmbH - * Obere Lagerstr. 30 + * Dornierstr. 4 * 82178 Puchheim * Germany * <rtems@embedded-brains.de> @@ -24,6 +24,7 @@ #include <bsp/start.h> #include <bsp/lpc32xx.h> #include <bsp/mmu.h> +#include <bsp/arm-cp15-start.h> #include <bsp/linker-symbols.h> #include <bsp/uart-output-char.h> @@ -41,26 +42,8 @@ #define LPC32XX_MMU_CODE LPC32XX_MMU_READ_ONLY_CACHED #endif -static BSP_START_TEXT_SECTION void clear_bss(void) -{ - const int *end = (const int *) bsp_section_bss_end; - int *out = (int *) bsp_section_bss_begin; - - /* Clear BSS */ - while (out != end) { - *out = 0; - ++out; - } -} - #ifndef LPC32XX_DISABLE_MMU - typedef struct { - uint32_t begin; - uint32_t end; - uint32_t flags; - } lpc32xx_mmu_config; - - static const BSP_START_DATA_SECTION lpc32xx_mmu_config + static const BSP_START_DATA_SECTION arm_cp15_start_section_config lpc32xx_mmu_config_table [] = { { .begin = (uint32_t) bsp_section_fast_text_begin, @@ -130,68 +113,26 @@ static BSP_START_TEXT_SECTION void clear_bss(void) .flags = LPC32XX_MMU_READ_WRITE_DATA } }; - - static BSP_START_TEXT_SECTION void set_translation_table_entries( - uint32_t *ttb, - const lpc32xx_mmu_config *config - ) - { - uint32_t i = ARM_MMU_SECT_GET_INDEX(config->begin); - uint32_t iend = - ARM_MMU_SECT_GET_INDEX(ARM_MMU_SECT_MVA_ALIGN_UP(config->end)); - - if (config->begin != config->end) { - while (i < iend) { - ttb [i] = (i << ARM_MMU_SECT_BASE_SHIFT) | config->flags; - ++i; - } - } - } - - static BSP_START_TEXT_SECTION void - setup_translation_table_and_enable_mmu(uint32_t ctrl) - { - uint32_t const dac = - ARM_CP15_DAC_DOMAIN(LPC32XX_MMU_CLIENT_DOMAIN, ARM_CP15_DAC_CLIENT); - uint32_t *const ttb = (uint32_t *) bsp_translation_table_base; - size_t const config_entry_count = - sizeof(lpc32xx_mmu_config_table) / sizeof(lpc32xx_mmu_config_table [0]); - size_t i = 0; - - arm_cp15_set_domain_access_control(dac); - arm_cp15_set_translation_table_base(ttb); - - /* Initialize translation table with invalid entries */ - for (i = 0; i < ARM_MMU_TRANSLATION_TABLE_ENTRY_COUNT; ++i) { - ttb [i] = 0; - } - - for (i = 0; i < config_entry_count; ++i) { - set_translation_table_entries(ttb, &lpc32xx_mmu_config_table [i]); - } - - /* Enable MMU and cache */ - ctrl |= ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M; - arm_cp15_set_control(ctrl); - } #endif static BSP_START_TEXT_SECTION void setup_mmu_and_cache(void) { - uint32_t ctrl = 0; - - /* Disable MMU and cache, basic settings */ - ctrl = arm_cp15_get_control(); - ctrl &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_R | ARM_CP15_CTRL_C - | ARM_CP15_CTRL_V | ARM_CP15_CTRL_M); - ctrl |= ARM_CP15_CTRL_S | ARM_CP15_CTRL_A; - arm_cp15_set_control(ctrl); + uint32_t ctrl = arm_cp15_start_setup_mmu_and_cache( + ARM_CP15_CTRL_I | ARM_CP15_CTRL_R | ARM_CP15_CTRL_C + | ARM_CP15_CTRL_V | ARM_CP15_CTRL_M, + ARM_CP15_CTRL_S | ARM_CP15_CTRL_A + ); arm_cp15_cache_invalidate(); - arm_cp15_tlb_invalidate(); #ifndef LPC32XX_DISABLE_MMU - setup_translation_table_and_enable_mmu(ctrl); + arm_cp15_start_setup_translation_table_and_enable_mmu( + ctrl, + (uint32_t *) bsp_translation_table_base, + LPC32XX_MMU_CLIENT_DOMAIN, + &lpc32xx_mmu_config_table [0], + RTEMS_ARRAY_SIZE(lpc32xx_mmu_config_table) + ); #endif } @@ -241,7 +182,6 @@ static BSP_START_TEXT_SECTION void setup_pll(void) BSP_START_TEXT_SECTION void bsp_start_hook_0(void) { setup_pll(); - setup_mmu_and_cache(); } static BSP_START_TEXT_SECTION void stop_dma_activities(void) @@ -290,51 +230,9 @@ static BSP_START_TEXT_SECTION void setup_timer(void) BSP_START_TEXT_SECTION void bsp_start_hook_1(void) { stop_dma_activities(); + bsp_start_copy_sections(); + setup_mmu_and_cache(); setup_uarts(); setup_timer(); - - /* Copy .text section */ - arm_cp15_instruction_cache_invalidate(); - bsp_start_memcpy( - (int *) bsp_section_text_begin, - (const int *) bsp_section_text_load_begin, - (size_t) bsp_section_text_size - ); - - /* Copy .rodata section */ - arm_cp15_instruction_cache_invalidate(); - bsp_start_memcpy( - (int *) bsp_section_rodata_begin, - (const int *) bsp_section_rodata_load_begin, - (size_t) bsp_section_rodata_size - ); - - /* Copy .data section */ - arm_cp15_instruction_cache_invalidate(); - bsp_start_memcpy( - (int *) bsp_section_data_begin, - (const int *) bsp_section_data_load_begin, - (size_t) bsp_section_data_size - ); - - /* Copy .fast_text section */ - arm_cp15_instruction_cache_invalidate(); - bsp_start_memcpy( - (int *) bsp_section_fast_text_begin, - (const int *) bsp_section_fast_text_load_begin, - (size_t) bsp_section_fast_text_size - ); - - /* Copy .fast_data section */ - arm_cp15_instruction_cache_invalidate(); - bsp_start_memcpy( - (int *) bsp_section_fast_data_begin, - (const int *) bsp_section_fast_data_load_begin, - (size_t) bsp_section_fast_data_size - ); - - /* Clear .bss section */ - clear_bss(); - - /* At this point we can use objects outside the .start section */ + bsp_start_clear_bss(); } |