/************************************************************************************
* configs/fire-stm32v2/src/up_selectlcd.c
* arch/arm/src/board/up_selectlcd.c
*
* Copyright (C) 2012 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.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <assert.h>
#include <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "stm32_fsmc.h"
#include "stm32_gpio.h"
#include "stm32.h"
#include "fire-internal.h"
#ifdef CONFIG_STM32_FSMC
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
#ifndef CONFIG_STM32_FSMC
# warning "FSMC is not enabled"
#endif
#if STM32_NGPIO_PORTS < 6
# error "Required GPIO ports not enabled"
#endif
/************************************************************************************
* Public Data
************************************************************************************/
/* 2.4" TFT + Touchscreen. FSMC Bank1
*
* --- ------ -------------- -------------------------------------------------------------------
* PIN NAME SIGNAL NOTES
* --- ------ -------------- -------------------------------------------------------------------
*
* 30 PA5 PA5-SPI1-SCK 2.4" TFT + Touchscreen, 10Mbit ENC28J60, SPI 2M FLASH
* 31 PA6 PA6-SPI1-MISO 2.4" TFT + Touchscreen, 10Mbit ENC28J60, SPI 2M FLASH
* 32 PA7 PA7-SPI1-MOSI 2.4" TFT + Touchscreen, 10Mbit ENC28J60, SPI 2M FLASH
* 92 PB6 PB6-I2C1-SCL 2.4" TFT + Touchscreen, AT24C02
* 93 PB7 PB7-I2C1-SDA 2.4" TFT + Touchscreen, AT24C02
* 81 PD0 PD0-FSMC_D2 2.4" TFT + Touchscreen
* 82 PD1 PD1-FSMC_D3 2.4" TFT + Touchscreen
* 85 PD4 PD4-FSMC_NOE 2.4" TFT + Touchscreen
* 86 PD5 PD5-FSMC_NWE 2.4" TFT + Touchscreen
* 88 PD7 PD7-FSMC_NE1 2.4" TFT + Touchscreen
* 55 PD8 PD8-FSMC_D13 2.4" TFT + Touchscreen
* 56 PD9 PD9-FSMC_D14 2.4" TFT + Touchscreen
* 57 PD10 PD10-FSMC_D15 2.4" TFT + Touchscreen
* 58 PD11 PD11-FSMC_A16 2.4" TFT + Touchscreen
* 60 PD13 PD13-LCD/LIGHT 2.4" TFT + Touchscreen
* 61 PD14 PD14-FSMC_D0 2.4" TFT + Touchscreen
* 62 PD15 PD15-FSMC_D1 2.4" TFT + Touchscreen
* 98 PE1 PE1-FSMC_NBL1 2.4" TFT + Touchscreen
* 38 PE7 PE7-FSMC_D4 2.4" TFT + Touchscreen
* 39 PE8 PE8-FSMC_D5 2.4" TFT + Touchscreen
* 40 PE9 PE9-FSMC_D6 2.4" TFT + Touchscreen
* 41 PE10 PE10-FSMC_D7 2.4" TFT + Touchscreen
* 42 PE11 PE11-FSMC_D8 2.4" TFT + Touchscreen
* 43 PE12 PE12-FSMC_D9 2.4" TFT + Touchscreen
* 44 PE13 PE13-FSMC_D10 2.4" TFT + Touchscreen
* 45 PE14 PE14-FSMC_D11 2.4" TFT + Touchscreen
* 46 PE15 PE15-FSMC_D12 2.4" TFT + Touchscreen
*
* NOTE: SPI and I2C pin configuration is controlled in the SPI and I2C drivers, respectively.
*/
static const uint16_t g_lcdconfig[NCOMMON_CONFIG] =
{
/* Address Lines: A16 only */
GPIO_NPS_A16,
/* Data Lines: D0... D15 */
GPIO_NPS_D0, GPIO_NPS_D1, GPIO_NPS_D2, GPIO_NPS_D3,
GPIO_NPS_D4, GPIO_NPS_D5, GPIO_NPS_D6, GPIO_NPS_D7,
GPIO_NPS_D8, GPIO_NPS_D9, GPIO_NPS_D10, GPIO_NPS_D11,
GPIO_NPS_D12, GPIO_NPS_D13, GPIO_NPS_D14, GPIO_NPS_D15,
/* NOE, NWE, NE1, NBL1 */
GPIO_NPS_NOE, GPIO_NPS_NWE, GPIO_NPS_NE1, GPIO_NPS_NBL1,
/* Backlight GPIO */
GPIO_LCD_BACKLIGHT
};
#define NLCD_CONFIG (sizeof(g_lcdconfig) / sizeof(uint16_t))
/************************************************************************************
* Private Data
************************************************************************************/
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_enablefsmc
*
* Description:
* Enable clocking to the FSMC module
*
************************************************************************************/
static inline void stm32_enablefsmc(void)
{
uint32_t regval;
/* Enable AHB clocking to the FSMC */
regval = getreg32( STM32_RCC_AHBENR);
regval |= RCC_AHBENR_FSMCEN;
putreg32(regval, STM32_RCC_AHBENR);
}
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_selectlcd
*
* Description:
* Initialize to the LCD pin configuration.
*
************************************************************************************/
void stm32_selectlcd(void)
{
irqstate_t flags;
int i;
/* Configure LCD GPIO pis */
flags = irqsave();
for (i = 0; i < NLCD_GPIOS; i++)
{
stm32_configgpio(g_lcdconfig[i]);
}
/* Enable AHB clocking to the FSMC */
stm32_enablefsmc();
/* Bank1 NOR/SRAM control register configuration */
putreg32(FSMC_BCR_SRAM | FSMC_BCR_MWID16 | FSMC_BCR_WREN, STM32_FSMC_BCR1);
/* Bank1 NOR/SRAM timing register configuration */
putreg32(FSMC_BTR_ADDSET(1)|FSMC_BTR_ADDHLD(0)|FSMC_BTR_DATAST(2)|FSMC_BTR_BUSTRUN(0)|
FSMC_BTR_CLKDIV(0)|FSMC_BTR_DATLAT(0)|FSMC_BTR_ACCMODA, STM32_FSMC_BTR1);
putreg32(0xffffffff, STM32_FSMC_BWTR4);
/* Enable the bank by setting the MBKEN bit */
putreg32(FSMC_BCR_MBKEN | FSMC_BCR_SRAM | FSMC_BCR_MWID16 | FSMC_BCR_WREN, STM32_FSMC_BCR1);
irqrestore(flags);
}
#endif /* CONFIG_STM32_FSMC */
