static int qspi_setup_iomux(void)
{
int rv = 0;
#ifdef CONFIG_STM32_QSPI
int i;
for (i = 0; i < ARRAY_SIZE(qspi_af9_iomux); i++) {
rv = stm32f2_gpio_config(&qspi_af9_iomux[i],
STM32F2_GPIO_ROLE_QSPI_AF9);
if (rv)
break;
}
for (i = 0; i < ARRAY_SIZE(qspi_af10_iomux); i++) {
rv = stm32f2_gpio_config(&qspi_af10_iomux[i],
STM32F2_GPIO_ROLE_QSPI_AF10);
if (rv)
break;
}
#endif /* CONFIG_STM32_QSPI */
return rv;
}
/*
* Initialize LCD pins
*/
static int ltdc_setup_iomux(void)
{
int rv = 0;
int i;
/*
* Connect GPIOs to FMC controller
*/
for (i = 0; i < ARRAY_SIZE(ltdc_iomux); i++) {
rv = stm32f2_gpio_config(<dc_iomux[i],
STM32F2_GPIO_ROLE_LTDC);
if (rv)
break;
}
return rv;
}
/*
* Init FMC/FSMC GPIOs based
*/
static int fmc_fsmc_setup_gpio(void)
{
int rv = 0;
int i;
/*
* Connect GPIOs to FMC controller
*/
for (i = 0; i < ARRAY_SIZE(ext_ram_fsmc_fmc_gpio); i++) {
rv = stm32f2_gpio_config(&ext_ram_fsmc_fmc_gpio[i],
STM32F2_GPIO_ROLE_FMC);
if (rv)
goto out;
}
fsmc_gpio_init_done = 1;
out:
return rv;
}
/*
* Configure GPIOs
*/
static int pwr_setup_gpio(void)
{
struct stm32f2_gpio_dsc pwr_en_gpio[] = {
{ STM32F2_GPIO_PORT_F, STM32F2_GPIO_PIN_10 }, /* PWR_EN */
{ STM32F2_GPIO_PORT_I, STM32F2_GPIO_PIN_0 }, /* LCD_DIM */
};
int i, rv;
for (i = 0; i < ARRAY_SIZE(pwr_en_gpio); i++) {
rv = stm32f2_gpio_config(&pwr_en_gpio[i],
STM32F2_GPIO_ROLE_GPOUT);
if (rv)
goto out;
rv = stm32f2_gpout_set(&pwr_en_gpio[i], 1);
if (rv)
goto out;
}
out:
return rv;
}
/*
* Setup external RAM.
*/
int dram_init(void)
{
int rv = 0;
#if 0
static struct stm32f2_gpio_dsc ctrl_gpio = {STM32F2_GPIO_PORT_I,
STM32F2_GPIO_PIN_9};
rv = fsmc_nor_psram_init(CONFIG_SYS_RAM_CS,
CONFIG_SYS_FSMC_PSRAM_BCR,
CONFIG_SYS_FSMC_PSRAM_BTR,
#ifdef CONFIG_SYS_FSMC_PSRAM_BWTR
CONFIG_SYS_FSMC_PSRAM_BWTR
#else
(u32)-1
#endif
);
if (rv != 0)
goto out;
rv = stm32f2_gpio_config(&ctrl_gpio, STM32F2_GPIO_ROLE_GPOUT);
if (rv != 0)
goto out;
# if defined(CONFIG_SYS_RAM_BURST)
/*
* FIXME: all this hardcoded stuff.
*/
/* Step.2 */
stm32f2_gpout_set(&ctrl_gpio, 1);
/* Step.3 */
*(volatile u16 *)(CONFIG_SYS_RAM_BASE + 0x0010223E) = 0;
/* Step.4-5 */
stm32f2_gpout_set(&ctrl_gpio, 0);
/* Step.6 */
fsmc_nor_psram_init(CONFIG_SYS_RAM_CS, 0x00083115,
0x0010FFFF, -1);
/* Step.7 */
rv = *(volatile u16 *)(CONFIG_SYS_RAM_BASE + 0x000000);
/* Step.8 */
fsmc_nor_psram_init(CONFIG_SYS_RAM_CS, 0x00005059,
0x10000702, 0x10000602);
/* Step.9 */
stm32f2_gpout_set(&ctrl_gpio, 1);
/* Step.10 */
*(volatile u16 *)(CONFIG_SYS_RAM_BASE + 0x0110223E) = 0;
/* Step.11 */
stm32f2_gpout_set(&ctrl_gpio, 0);
/* Step.12 */
fsmc_nor_psram_init(CONFIG_SYS_RAM_CS, 0x00083115,
0x0010FFFF, -1);
/* Step.13 */
rv = *(volatile u16 *)(CONFIG_SYS_RAM_BASE + 0x01000000);
# else
/*
* Switch PSRAM in the Asyncronous Read/Write Mode
*/
stm32f2_gpout_set(&ctrl_gpio, 0);
# endif /* CONFIG_SYS_RAM_BURST */
#endif
/*
* Fill in global info with description of SRAM configuration
*/
gd->bd->bi_dram[0].start = CONFIG_SYS_RAM_BASE;
gd->bd->bi_dram[0].size = CONFIG_SYS_RAM_SIZE;
rv = 0;
out:
return rv;
}
/*******************************************************************************
* Function Name : disp_open
* Description : Initializes and configures the Display
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int disp_open(uint32_t FBAddr)
{
int i, rv = 0;
//-------------------------------------------------------------------------
// Initialize the SDRAM
//-------------------------------------------------------------------------
//fmc_dram_init();
//-------------------------------------------------------------------------
// Connect GPIOs to FMC controller
//-------------------------------------------------------------------------
for (i = 0; i < ARRAY_SIZE(ext_tft_gpio); i++)
{
rv = stm32f2_gpio_config(&ext_tft_gpio[i]);
if (rv != 0)
return -1;
}//for
CHIP_ENB();
CHIP_DSB();
//-------------------------------------------------------------------------
// Configure the LCD_SPI interface
//-------------------------------------------------------------------------
// Enable SPI clock
LCD_SpiClkEnable();
// Reset SPI peripheral
LCD_SpiPeripReset();
// SPI Config
LCD_SPI->cr1 = 0x030C;
LCD_SPI->i2scfgr &= ~((uint16_t)0x0800);
LCD_SPI->crcpr = 7;
// SPI enable
LCD_SPI->cr1 |= 0x0040;
//-------------------------------------------------------------------------
// LCD low level initializing
lcd_init();
// Enable the LTDC Clock
STM32_RCC->apb2enr |= ((uint32_t)0x04000000);
// Enable the DMA2D Clock
STM32_RCC->ahb1enr |= ((uint32_t)0x00800000);
// Configure PLLSAI prescalers for LCD
// Enable Pixel Clock
// PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz
// PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAI_N = 192 Mhz
// PLLLCDCLK = PLLSAI_VCO Output/PLLSAI_R = 192/4 = 48 Mhz
// LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 48/8 = 6 Mhz
STM32_RCC->pllsaicfgr = (192 << 6) | (7 << 24) | (4 << 28);
STM32_RCC->dckcfgr &= ~0x00030000;
STM32_RCC->dckcfgr |= 0x00020000;
// Enable PLLSAI Clock
*((volatile uint32_t *)CR_PLLSAION_BB) = 1;
// Wait for PLLSAI activation
while ((STM32_RCC->cr & 0x20000000) == 0);
//-------------------------------------------------------------------------
// LTDC Configuration
//-------------------------------------------------------------------------
STM32_LTDC->sscr &= ~(LTDC_SSCR_VSH | LTDC_SSCR_HSW);
STM32_LTDC->sscr |= (0x00090000 | 1);
STM32_LTDC->bpcr &= ~(LTDC_BPCR_AVBP | LTDC_BPCR_AHBP);
STM32_LTDC->bpcr |= (0x001D0000 | 3);
STM32_LTDC->awcr &= ~(LTDC_AWCR_AAH | LTDC_AWCR_AAW);
STM32_LTDC->awcr |= (0x010D0000 | 323);
STM32_LTDC->twcr &= ~(LTDC_TWCR_TOTALH | LTDC_TWCR_TOTALW);
STM32_LTDC->twcr |= (0x01170000 | 327);
STM32_LTDC->gcr &= ((uint32_t)0x0FFE888F);
STM32_LTDC->bccr &= ~(LTDC_BCCR_BCBLUE | LTDC_BCCR_BCGREEN | LTDC_BCCR_BCRED);
//-------------------------------------------------------------------------
// Layer configuration
//-------------------------------------------------------------------------
STM32_LTDC_LAYER1->whpcr &= ~(LTDC_LxWHPCR_WHSTPOS | LTDC_LxWHPCR_WHSPPOS);
STM32_LTDC_LAYER1->whpcr = (0x010D0000 | 30);
STM32_LTDC_LAYER1->wvpcr &= ~(LTDC_LxWVPCR_WVSTPOS | LTDC_LxWVPCR_WVSPPOS);
STM32_LTDC_LAYER1->wvpcr = (0x01430000 | 4);
STM32_LTDC_LAYER1->pfcr &= ~(LTDC_LxPFCR_PF);
STM32_LTDC_LAYER1->pfcr = 2;
STM32_LTDC_LAYER1->dccr &= ~(LTDC_LxDCCR_DCBLUE | LTDC_LxDCCR_DCGREEN | LTDC_LxDCCR_DCRED | LTDC_LxDCCR_DCALPHA);
STM32_LTDC_LAYER1->dccr = 0x00000000;
STM32_LTDC_LAYER1->cacr &= ~(LTDC_LxCACR_CONSTA);
STM32_LTDC_LAYER1->cacr = 255;
STM32_LTDC_LAYER1->bfcr &= ~(LTDC_LxBFCR_BF2 | LTDC_LxBFCR_BF1);
STM32_LTDC_LAYER1->bfcr = (1024 | 5);
STM32_LTDC_LAYER1->cfbar &= ~(LTDC_LxCFBAR_CFBADD);
STM32_LTDC_LAYER1->cfbar = FBAddr;
STM32_LTDC_LAYER1->cfblr &= ~(LTDC_LxCFBLR_CFBLL | LTDC_LxCFBLR_CFBP);
STM32_LTDC_LAYER1->cfblr = (0x01E00000 | 483);
STM32_LTDC_LAYER1->cfblnr &= ~(LTDC_LxCFBLNR_CFBLNBR);
STM32_LTDC_LAYER1->cfblnr = 320;
STM32_LTDC->gcr |= ((uint32_t)LTDC_GCR_DTEN);
STM32_LTDC_LAYER1->cr |= ((uint32_t)LTDC_LxCR_LEN);
STM32_LTDC->srcr = (uint32_t)LTDC_SRCR_IMR;
//-------------------------------------------------------------------------
// Enable The LCD
//-------------------------------------------------------------------------
STM32_LTDC->gcr |= ((uint32_t)LTDC_GCR_LTDCEN);
return 0;
}//disp_open