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Diffstat (limited to 'c/src/lib/libbsp/arm/beagle/include/bsp.h')
| -rw-r--r-- | c/src/lib/libbsp/arm/beagle/include/bsp.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/beagle/include/bsp.h b/c/src/lib/libbsp/arm/beagle/include/bsp.h new file mode 100644 index 0000000000..393b75d498 --- /dev/null +++ b/c/src/lib/libbsp/arm/beagle/include/bsp.h @@ -0,0 +1,249 @@ +/** + * @file + * + * @ingroup beagle + * + * @brief Global BSP definitions. + */ + +/* + * Copyright (c) 2012 Claas Ziemke. All rights reserved. + * + * Claas Ziemke + * Kernerstrasse 11 + * 70182 Stuttgart + * Germany + * <claas.ziemke@gmx.net> + * + * 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. + */ + +#ifndef LIBBSP_ARM_BEAGLE_BSP_H +#define LIBBSP_ARM_BEAGLE_BSP_H + +#include <bspopts.h> + +#include <rtems.h> +//#include <rtems/console.h> +//#include <rtems/clockdrv.h> + +#include <bsp/beagle.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#define BSP_FEATURE_IRQ_EXTENSION + +#ifndef ASM + +struct rtems_bsdnet_ifconfig; + +/** + * @defgroup beagle BEAGLE Support + * + * @ingroup bsp_kit + * + * @brief BEAGLE support package. + * + * @{ + */ + +/** + * @brief Network driver attach and detach function. + */ +int beagle_eth_attach_detach( + struct rtems_bsdnet_ifconfig *config, + int attaching +); + +/** + * @brief Standard network driver attach and detach function. + */ +#define RTEMS_BSP_NETWORK_DRIVER_ATTACH beagle_eth_attach_detach + +/** + * @brief Standard network driver name. + */ +#define RTEMS_BSP_NETWORK_DRIVER_NAME "eth0" + +/** + * @brief Optimized idle task. + * + * This idle task sets the power mode to idle. This causes the processor clock + * to be stopped, while on-chip peripherals remain active. Any enabled + * interrupt from a peripheral or an external interrupt source will cause the + * processor to resume execution. + * + * To enable the idle task use the following in the system configuration: + * + * @code + * #include <bsp.h> + * + * #define CONFIGURE_INIT + * + * #define CONFIGURE_IDLE_TASK_BODY beagle_idle + * + * #include <confdefs.h> + * @endcode + */ +void *beagleboard_idle(uintptr_t ignored); + +#define BEAGLE_STANDARD_TIMER (&beagle.timer_1) + +static inline unsigned beagleboard_timer(void) +{ + volatile beagle_timer *timer = BEAGLE_STANDARD_TIMER; + + return timer->tc; +} + +static inline void beagleboard_micro_seconds_delay(unsigned us) +{ + unsigned start = beagleboard_timer(); + unsigned delay = us * (BEAGLE_PERIPH_CLK / 1000000); + unsigned elapsed = 0; + + do { + elapsed = beagleboard_timer() - start; + } while (elapsed < delay); +} + +#if BEAGLE_OSCILLATOR_MAIN == 13000000U + #define BEAGLE_HCLKPLL_CTRL_INIT_VALUE \ + (HCLK_PLL_POWER | HCLK_PLL_DIRECT | HCLK_PLL_M(16 - 1)) + #define BEAGLE_HCLKDIV_CTRL_INIT_VALUE \ + (HCLK_DIV_HCLK(2 - 1) | \ + HCLK_DIV_PERIPH_CLK(16 - 1) | \ + HCLK_DIV_DDRAM_CLK(1)) +#else + #error "unexpected main oscillator frequency" +#endif + +bool beagleboard_start_pll_setup( + uint32_t hclkpll_ctrl, + uint32_t hclkdiv_ctrl, + bool force +); + +uint32_t beagleboard__sysclk(void); + +uint32_t beagleboard_hclkpll_clk(void); + +uint32_t beagleboard_periph_clk(void); + +uint32_t beagleboard_hclk(void); + +uint32_t beagleboard_arm_clk(void); + +uint32_t beagleboard_dram_clk(void); + +void bsp_restart(void *addr); + +#define BSP_CONSOLE_UART_BASE BEAGLE_BASE_UART_5 + +/** + * @brief Begin of magic zero area. + * + * A read from this area returns zero. Writes have no effect. + */ +//extern uint32_t beagle_magic_zero_begin []; + +/** + * @brief End of magic zero area. + * + * A read from this area returns zero. Writes have no effect. + */ +//extern uint32_t beagle_magic_zero_end []; + +/** + * @brief Size of magic zero area. + * + * A read from this area returns zero. Writes have no effect. + */ +//extern uint32_t beagle_magic_zero_size []; + +#ifdef BEAGLE_SCRATCH_AREA_SIZE + /** + * @rief Scratch area. + * + * The usage is application specific. + */ + //extern uint8_t beagle_scratch_area [BEAGLE_SCRATCH_AREA_SIZE]; +#endif + +#define BEAGLE_DO_STOP_GPDMA \ + do { \ + if ((BEAGLE_DMACLK_CTRL & 0x1) != 0) { \ + if ((beagle.dma.cfg & DMA_CFG_E) != 0) { \ + int i = 0; \ + for (i = 0; i < 8; ++i) { \ + beagle.dma.channels [i].cfg = 0; \ + } \ + beagle.dma.cfg &= ~DMA_CFG_E; \ + } \ + BEAGLE_DMACLK_CTRL = 0; \ + } \ + } while (0) + +#define BEAGLE_DO_STOP_ETHERNET \ + do { \ + if ((BEAGLE_MAC_CLK_CTRL & 0x7) == 0x7) { \ + beagle.eth.command = 0x38; \ + beagle.eth.mac1 = 0xcf00; \ + beagle.eth.mac1 = 0; \ + BEAGLE_MAC_CLK_CTRL = 0; \ + } \ + } while (0) + +#define BEAGLE_DO_STOP_USB \ + do { \ + if ((BEAGLE_USB_CTRL & 0x010e8000) != 0) { \ + BEAGLE_OTG_CLK_CTRL = 0; \ + BEAGLE_USB_CTRL = 0x80000; \ + } \ + } while (0) + +#define BEAGLE_DO_RESTART(addr) \ + do { \ + ARM_SWITCH_REGISTERS; \ + rtems_interrupt_level level; \ + uint32_t ctrl = 0; \ + \ + rtems_interrupt_disable(level); \ + \ + arm_cp15_data_cache_test_and_clean(); \ + arm_cp15_instruction_cache_invalidate(); \ + \ + ctrl = arm_cp15_get_control(); \ + ctrl &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M); \ + arm_cp15_set_control(ctrl); \ + \ + __asm__ volatile ( \ + ARM_SWITCH_TO_ARM \ + "mov pc, %[addr]\n" \ + ARM_SWITCH_BACK \ + : ARM_SWITCH_OUTPUT \ + : [addr] "r" (addr) \ + ); \ + } while (0) + +/** @} */ + +/** + * @defgroup beagle BEAGLE Support + * + * @ingroup beagle + * + * @brief BEAGLE support package. + */ + +#endif /* ASM */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LIBBSP_ARM_BEAGLE_BSP_H */ |