Add framework for the STM3240G-EVAL board (not much logic yet)

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4118 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 214 insertions, 0 deletions

diff --git a/nuttx/configs/stm3240g-eval/include/board.h b/nuttx/configs/stm3240g-eval/include/board.h
new file mode 100755
index 000000000..56a75a56f
--- /dev/null
+++ b/nuttx/configs/stm3240g-eval/include/board.h
@@ -0,0 +1,214 @@
+/************************************************************************************
+ * configs/stm3240g-eval/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_BOARD_BOARD_H
+#define __ARCH_BOARD_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+#include "stm32_rcc.h"
+#include "stm32_sdio.h"
+#include "stm32_internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+#warning "Revisit -- this is from the STM3210E-EVAL"
+
+/* On-board crystal frequency is 8MHz (HSE) */
+
+#define STM32_BOARD_XTAL        8000000ul
+
+/* PLL source is HSE/1, PLL multipler is 9: PLL frequency is 8MHz (XTAL) x 9 = 72MHz */
+
+#define STM32_CFGR_PLLSRC       RCC_CFGR_PLLSRC
+#define STM32_CFGR_PLLXTPRE     0
+#define STM32_CFGR_PLLMUL       RCC_CFGR_PLLMUL_CLKx9
+#define STM32_PLL_FREQUENCY     (9*STM32_BOARD_XTAL)
+
+/* Use the PLL and set the SYSCLK source to be the PLL */
+
+#define STM32_SYSCLK_SW         RCC_CFGR_SW_PLL
+#define STM32_SYSCLK_SWS        RCC_CFGR_SWS_PLL
+#define STM32_SYSCLK_FREQUENCY  STM32_PLL_FREQUENCY
+
+/* AHB clock (HCLK) is SYSCLK (72MHz) */
+
+#define STM32_RCC_CFGR_HPRE     RCC_CFGR_HPRE_SYSCLK
+#define STM32_HCLK_FREQUENCY    STM32_PLL_FREQUENCY
+#define STM32_BOARD_HCLK        STM32_HCLK_FREQUENCY    /* same as above, to satisfy compiler */
+
+/* APB2 clock (PCLK2) is HCLK (72MHz) */
+
+#define STM32_RCC_CFGR_PPRE2    RCC_CFGR_PPRE2_HCLK
+#define STM32_PCLK2_FREQUENCY   STM32_HCLK_FREQUENCY
+
+/* APB1 clock (PCLK1) is HCLK/2 (36MHz) */
+
+#define STM32_RCC_CFGR_PPRE1    RCC_CFGR_PPRE1_HCLKd2
+#define STM32_PCLK1_FREQUENCY   (STM32_HCLK_FREQUENCY/2)
+
+/* USB divider -- Divide PLL clock by 1.5 */
+
+#define STM32_CFGR_USBPRE       0
+
+/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
+ * otherwise frequency is 2xAPBx. 
+ * Note: TIM1,8 are on APB2, others on APB1 */
+
+#define STM32_TIM18_FREQUENCY   STM32_HCLK_FREQUENCY
+#define STM32_TIM27_FREQUENCY   STM32_HCLK_FREQUENCY
+
+/* SDIO dividers.  Note that slower clocking is required when DMA is disabled 
+ * in order to avoid RX overrun/TX underrun errors due to delayed responses
+ * to service FIFOs in interrupt driven mode.  These values have not been
+ * tuned!!!
+ *
+ * HCLK=72MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(178+2)=400 KHz
+ */
+  
+#define SDIO_INIT_CLKDIV        (178 << SDIO_CLKCR_CLKDIV_SHIFT)
+
+/* DMA ON:  HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(2+2)=18 MHz
+ * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
+ */
+
+#ifdef CONFIG_SDIO_DMA
+#  define SDIO_MMCXFR_CLKDIV    (2 << SDIO_CLKCR_CLKDIV_SHIFT) 
+#else
+#  define SDIO_MMCXFR_CLKDIV    (3 << SDIO_CLKCR_CLKDIV_SHIFT) 
+#endif
+
+/* DMA ON:  HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz
+ * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
+ */
+
+#ifdef CONFIG_SDIO_DMA
+#  define SDIO_SDXFR_CLKDIV     (1 << SDIO_CLKCR_CLKDIV_SHIFT)
+#else
+#  define SDIO_SDXFR_CLKDIV     (3 << SDIO_CLKCR_CLKDIV_SHIFT)
+#endif
+
+/* LED definitions ******************************************************************/
+
+#define LED_STARTED       0
+#define LED_HEAPALLOCATE  1
+#define LED_IRQSENABLED   2
+#define LED_STACKCREATED  3
+#define LED_INIRQ         4
+#define LED_SIGNAL        5
+#define LED_ASSERTION     6
+#define LED_PANIC         7
+
+/* The STM3240G-EVAL supports several buttons */
+
+#warning "Missing logic"
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+/************************************************************************************
+ * Name: stm32_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+EXTERN void stm32_boardinitialize(void);
+
+/************************************************************************************
+ * Button support.
+ *
+ * Description:
+ *   up_buttoninit() must be called to initialize button resources.  After
+ *   that, up_buttons() may be called to collect the current state of all
+ *   buttons or up_irqbutton() may be called to register button interrupt
+ *   handlers.
+ *
+ *   After up_buttoninit() has been called, up_buttons() may be called to
+ *   collect the state of all buttons.  up_buttons() returns an 8-bit bit set
+ *   with each bit associated with a button.  See the BUTTON_*_BIT
+ *   definitions in board.h for the meaning of each bit.
+ *
+ *   up_irqbutton() may be called to register an interrupt handler that will
+ *   be called when a button is depressed or released.  The ID value is a
+ *   button enumeration value that uniquely identifies a button resource. See the
+ *   BUTTON_* definitions in board.h for the meaning of enumeration
+ *   value.  The previous interrupt handler address is returned (so that it may
+ *   restored, if so desired).
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_BUTTONS
+EXTERN void up_buttoninit(void);
+EXTERN uint8_t up_buttons(void);
+#ifdef CONFIG_ARCH_IRQBUTTONS
+EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler);
+#endif
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __ARCH_BOARD_BOARD_H */