diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c | 360 |
1 files changed, 13 insertions, 347 deletions
diff --git a/c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c b/c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c index 4538b0c2d9..2efa3042a8 100644 --- a/c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c +++ b/c/src/lib/libbsp/arm/beagle/startup/bspstarthooks.c @@ -1,366 +1,32 @@ -/** - * @file - * - * @ingroup beagle - * - * @brief Startup code. - */ - /* - * Copyright (c) 2012 Claas Ziemke. All rights reserved. + * Copyright (c) 2013 embedded brains GmbH. All rights reserved. * - * Claas Ziemke - * Kernerstrasse 11 - * 70182 Stuttgart + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim * Germany - * <claas.ziemke@gmx.net> + * <info@embedded-brains.de> * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at - * http://www.rtems.com/license/LICENSE. + * http://www.rtems.org/license/LICENSE. */ #include <bsp.h> #include <bsp/start.h> -#include <bsp/beagle.h> -#include <bsp/linker-symbols.h> -#include <bsp/uart-output-char.h> -#include <libcpu/arm-cp15.h> - -#ifdef BEAGLE_DISABLE_READ_WRITE_DATA_CACHE - #define BEAGLE_MMU_READ_WRITE_DATA BEAGLE_MMU_READ_WRITE -#else - #define BEAGLE_MMU_READ_WRITE_DATA BEAGLE_MMU_READ_WRITE_CACHED -#endif - -#ifdef BEAGLE_DISABLE_READ_ONLY_PROTECTION - #define BEAGLE_MMU_READ_ONLY_DATA BEAGLE_MMU_READ_WRITE_CACHED - #define BEAGLE_MMU_CODE BEAGLE_MMU_READ_WRITE_CACHED -#else - #define BEAGLE_MMU_READ_ONLY_DATA BEAGLE_MMU_READ_ONLY_CACHED - #define BEAGLE_MMU_CODE BEAGLE_MMU_READ_ONLY_CACHED -#endif - -//LINKER_SYMBOL(beagle_translation_table_base); - -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 BEAGLE_DISABLE_MMU - typedef struct { - uint32_t begin; - uint32_t end; - uint32_t flags; - } beagle_mmu_config; - - static const BSP_START_DATA_SECTION beagle_mmu_config - beagle_mmu_config_table [] = { - { - .begin = (uint32_t) bsp_section_fast_text_begin, - .end = (uint32_t) bsp_section_fast_text_end, - .flags = BEAGLE_MMU_CODE - }, { - .begin = (uint32_t) bsp_section_fast_data_begin, - .end = (uint32_t) bsp_section_fast_data_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA -#ifdef BEAGLE_SCRATCH_AREA_SIZE - }, { - .begin = (uint32_t) &beagle_scratch_area [0], - .end = (uint32_t) &beagle_scratch_area [BEAGLE_SCRATCH_AREA_SIZE], - .flags = BEAGLE_MMU_READ_ONLY_DATA -#endif - }, { - .begin = (uint32_t) bsp_section_start_begin, - .end = (uint32_t) bsp_section_start_end, - .flags = BEAGLE_MMU_CODE - }, { - .begin = (uint32_t) bsp_section_vector_begin, - .end = (uint32_t) bsp_section_vector_end, - .flags = BEAGLE_MMU_READ_WRITE_CACHED - }, { - .begin = (uint32_t) bsp_section_text_begin, - .end = (uint32_t) bsp_section_text_end, - .flags = BEAGLE_MMU_CODE - }, { - .begin = (uint32_t) bsp_section_rodata_begin, - .end = (uint32_t) bsp_section_rodata_end, - .flags = BEAGLE_MMU_READ_ONLY_DATA - }, { - .begin = (uint32_t) bsp_section_data_begin, - .end = (uint32_t) bsp_section_data_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA - }, { - .begin = (uint32_t) bsp_section_bss_begin, - .end = (uint32_t) bsp_section_bss_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA - }, { - .begin = (uint32_t) bsp_section_work_begin, - .end = (uint32_t) bsp_section_work_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA - }, { - .begin = (uint32_t) bsp_section_stack_begin, - .end = (uint32_t) bsp_section_stack_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA - }, { - .begin = 0x0U, - .end = 0x100000U, - .flags = BEAGLE_MMU_READ_ONLY_CACHED - }, { - .begin = 0x20000000U, - .end = 0x200c0000U, - .flags = BEAGLE_MMU_READ_WRITE - }, { - .begin = 0x30000000U, - .end = 0x32000000U, - .flags = BEAGLE_MMU_READ_WRITE - }, { - .begin = 0x40000000U, - .end = 0x40100000U, - .flags = BEAGLE_MMU_READ_WRITE - }, { - .begin = (uint32_t) beagle_magic_zero_begin, - .end = (uint32_t) beagle_magic_zero_end, - .flags = BEAGLE_MMU_READ_WRITE_DATA - } - }; - - static BSP_START_TEXT_SECTION void set_translation_table_entries( - uint32_t *ttb, - const beagle_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(BEAGLE_MMU_CLIENT_DOMAIN, ARM_CP15_DAC_CLIENT); - uint32_t *const ttb = (uint32_t *) beagle_translation_table_base; - size_t const config_entry_count = - sizeof(beagle_mmu_config_table) / sizeof(beagle_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, &beagle_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); - - arm_cp15_cache_invalidate(); - arm_cp15_tlb_invalidate(); - - #ifndef BEAGLE_DISABLE_MMU - //setup_translation_table_and_enable_mmu(ctrl); - #endif -}*/ - -/*BSP_START_TEXT_SECTION bool beagle_start_pll_setup( - uint32_t hclkpll_ctrl, - uint32_t hclkdiv_ctrl, - bool force -) -{ - uint32_t pwr_ctrl = BEAGLE_PWR_CTRL; - bool settings_ok = - ((BEAGLE_HCLKPLL_CTRL ^ hclkpll_ctrl) & BSP_MSK32(1, 16)) == 0 - && ((BEAGLE_HCLKDIV_CTRL ^ hclkdiv_ctrl) & BSP_MSK32(0, 8)) == 0; - - if ((pwr_ctrl & PWR_NORMAL_RUN_MODE) == 0 || (!settings_ok && force)) { - // Disable HCLK PLL output - BEAGLE_PWR_CTRL = pwr_ctrl & ~PWR_NORMAL_RUN_MODE; - - // Configure HCLK PLL - BEAGLE_HCLKPLL_CTRL = hclkpll_ctrl; - while ((BEAGLE_HCLKPLL_CTRL & HCLK_PLL_LOCK) == 0) { - // Wait - } - - // Setup HCLK divider - BEAGLE_HCLKDIV_CTRL = hclkdiv_ctrl; +#include <bsp/arm-cp15-start.h> +#include <bsp/arm-a8core-start.h> - // Enable HCLK PLL output - BEAGLE_PWR_CTRL = pwr_ctrl | PWR_NORMAL_RUN_MODE; - } - - return settings_ok; -}*/ - -#if BEAGLE_OSCILLATOR_MAIN != 13000000U - #error "unexpected main oscillator frequency" -#endif - -/*static BSP_START_TEXT_SECTION void setup_pll(void) -{ - uint32_t hclkpll_ctrl = BEAGLE_HCLKPLL_CTRL_INIT_VALUE; - uint32_t hclkdiv_ctrl = BEAGLE_HCLKDIV_CTRL_INIT_VALUE; - - beagle_start_pll_setup(hclkpll_ctrl, hclkdiv_ctrl, false); -}*/ +#include <bsp/uart-output-char.h> 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) -{ - #ifdef BEAGLE_STOP_GPDMA - BEAGLE_DO_STOP_GPDMA; - #endif - - #ifdef BEAGLE_STOP_ETHERNET - BEAGLE_DO_STOP_ETHERNET; - #endif - - #ifdef BEAGLE_STOP_USB - BEAGLE_DO_STOP_USB; - #endif -}*/ - -static BSP_START_TEXT_SECTION void setup_uarts(void) -{ - uint32_t uartclk_ctrl = 0; - - #ifdef BEAGLE_CONFIG_U3CLK - uartclk_ctrl |= 1U << 0; - BEAGLE_U3CLK = BEAGLE_CONFIG_U3CLK; - #endif - #ifdef BEAGLE_CONFIG_U4CLK - uartclk_ctrl |= 1U << 1; - BEAGLE_U4CLK = BEAGLE_CONFIG_U4CLK; - #endif - #ifdef BEAGLE_CONFIG_U5CLK - uartclk_ctrl |= 1U << 2; - BEAGLE_U5CLK = BEAGLE_CONFIG_U5CLK; - #endif - #ifdef BEAGLE_CONFIG_U6CLK - uartclk_ctrl |= 1U << 3; - BEAGLE_U6CLK = BEAGLE_CONFIG_U6CLK; - #endif - - #ifdef BEAGLE_CONFIG_UART_CLKMODE - BEAGLE_UART_CLKMODE = BEAGLE_CONFIG_UART_CLKMODE; - #endif - - BEAGLE_UARTCLK_CTRL = uartclk_ctrl; - BEAGLE_UART_CTRL = 0x0; - BEAGLE_UART_LOOP = 0x0; - - #ifdef BEAGLE_CONFIG_U5CLK - // Clock is already set in BEAGLE_U5CLK - BSP_CONSOLE_UART_INIT(0x01); - #endif } -/*static BSP_START_TEXT_SECTION void setup_timer(void) -{ - volatile beagle_timer *timer = BEAGLE_STANDARD_TIMER; - - BEAGLE_TIMCLK_CTRL1 = (1U << 2) | (1U << 3); - - timer->tcr = BEAGLE_TIMER_TCR_RST; - timer->ctcr = 0x0; - timer->pr = 0x0; - timer->ir = 0xff; - timer->mcr = 0x0; - timer->ccr = 0x0; - timer->tcr = BEAGLE_TIMER_TCR_EN; -}*/ - BSP_START_TEXT_SECTION void bsp_start_hook_1(void) { - //stop_dma_activities(); - 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 + arm_a8core_start_hook_1(); + bsp_start_copy_sections(); + beagle_setup_mmu_and_cache(); + bsp_start_clear_bss(); } |