/************************************************************************************ * 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 * * 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 #include #include #include #include #include "chip.h" #include "up_arch.h" #include "stm32_fsmc.h" #include "stm32_gpio.h" #include "stm32_internal.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 */