1*5d71bd21SVikram Narayanan /* 2*5d71bd21SVikram Narayanan * Copyright (C) 2012 Freescale Semiconductor, Inc. 3*5d71bd21SVikram Narayanan * Fabio Estevam <fabio.estevam@freescale.com> 4*5d71bd21SVikram Narayanan * 5*5d71bd21SVikram Narayanan * See file CREDITS for list of people who contributed to this 6*5d71bd21SVikram Narayanan * project. 7*5d71bd21SVikram Narayanan * 8*5d71bd21SVikram Narayanan * This program is free software; you can redistribute it and/or 9*5d71bd21SVikram Narayanan * modify it under the terms of the GNU General Public License as 10*5d71bd21SVikram Narayanan * published by the Free Software Foundation; either version 2 of 11*5d71bd21SVikram Narayanan * the License, or (at your option) any later version. 12*5d71bd21SVikram Narayanan * 13*5d71bd21SVikram Narayanan * This program is distributed in the hope that it will be useful, 14*5d71bd21SVikram Narayanan * but WITHOUT ANY WARRANTY; without even the implied warranty of 15*5d71bd21SVikram Narayanan * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16*5d71bd21SVikram Narayanan * GNU General Public License for more details. 17*5d71bd21SVikram Narayanan * 18*5d71bd21SVikram Narayanan * You should have received a copy of the GNU General Public License 19*5d71bd21SVikram Narayanan * along with this program; if not, write to the Free Software 20*5d71bd21SVikram Narayanan * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21*5d71bd21SVikram Narayanan * MA 02111-1307 USA 22*5d71bd21SVikram Narayanan */ 23*5d71bd21SVikram Narayanan 24*5d71bd21SVikram Narayanan #include <common.h> 25*5d71bd21SVikram Narayanan #include <linux/list.h> 26*5d71bd21SVikram Narayanan #include <asm/gpio.h> 27*5d71bd21SVikram Narayanan #include <asm/arch/iomux.h> 28*5d71bd21SVikram Narayanan #include <linux/fb.h> 29*5d71bd21SVikram Narayanan #include <ipu_pixfmt.h> 30*5d71bd21SVikram Narayanan 31*5d71bd21SVikram Narayanan #define MX51EVK_LCD_3V3 IMX_GPIO_NR(4, 9) 32*5d71bd21SVikram Narayanan #define MX51EVK_LCD_5V IMX_GPIO_NR(4, 10) 33*5d71bd21SVikram Narayanan #define MX51EVK_LCD_BACKLIGHT IMX_GPIO_NR(3, 4) 34*5d71bd21SVikram Narayanan 35*5d71bd21SVikram Narayanan static struct fb_videomode const claa_wvga = { 36*5d71bd21SVikram Narayanan .name = "CLAA07LC0ACW", 37*5d71bd21SVikram Narayanan .refresh = 57, 38*5d71bd21SVikram Narayanan .xres = 800, 39*5d71bd21SVikram Narayanan .yres = 480, 40*5d71bd21SVikram Narayanan .pixclock = 37037, 41*5d71bd21SVikram Narayanan .left_margin = 40, 42*5d71bd21SVikram Narayanan .right_margin = 60, 43*5d71bd21SVikram Narayanan .upper_margin = 10, 44*5d71bd21SVikram Narayanan .lower_margin = 10, 45*5d71bd21SVikram Narayanan .hsync_len = 20, 46*5d71bd21SVikram Narayanan .vsync_len = 10, 47*5d71bd21SVikram Narayanan .sync = 0, 48*5d71bd21SVikram Narayanan .vmode = FB_VMODE_NONINTERLACED 49*5d71bd21SVikram Narayanan }; 50*5d71bd21SVikram Narayanan 51*5d71bd21SVikram Narayanan void setup_iomux_lcd(void) 52*5d71bd21SVikram Narayanan { 53*5d71bd21SVikram Narayanan /* DI2_PIN15 */ 54*5d71bd21SVikram Narayanan mxc_request_iomux(MX51_PIN_DI_GP4, IOMUX_CONFIG_ALT4); 55*5d71bd21SVikram Narayanan 56*5d71bd21SVikram Narayanan /* Pad settings for MX51_PIN_DI2_DISP_CLK */ 57*5d71bd21SVikram Narayanan mxc_iomux_set_pad(MX51_PIN_DI2_DISP_CLK, PAD_CTL_HYS_NONE | 58*5d71bd21SVikram Narayanan PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | 59*5d71bd21SVikram Narayanan PAD_CTL_DRV_MAX | PAD_CTL_SRE_SLOW); 60*5d71bd21SVikram Narayanan 61*5d71bd21SVikram Narayanan /* Turn on 3.3V voltage for LCD */ 62*5d71bd21SVikram Narayanan mxc_request_iomux(MX51_PIN_CSI2_D12, IOMUX_CONFIG_ALT3); 63*5d71bd21SVikram Narayanan gpio_direction_output(MX51EVK_LCD_3V3, 1); 64*5d71bd21SVikram Narayanan 65*5d71bd21SVikram Narayanan /* Turn on 5V voltage for LCD */ 66*5d71bd21SVikram Narayanan mxc_request_iomux(MX51_PIN_CSI2_D13, IOMUX_CONFIG_ALT3); 67*5d71bd21SVikram Narayanan gpio_direction_output(MX51EVK_LCD_5V, 1); 68*5d71bd21SVikram Narayanan 69*5d71bd21SVikram Narayanan /* Turn on GPIO backlight */ 70*5d71bd21SVikram Narayanan mxc_request_iomux(MX51_PIN_DI1_D1_CS, IOMUX_CONFIG_ALT4); 71*5d71bd21SVikram Narayanan mxc_iomux_set_input(MX51_GPIO3_IPP_IND_G_IN_4_SELECT_INPUT, 72*5d71bd21SVikram Narayanan INPUT_CTL_PATH1); 73*5d71bd21SVikram Narayanan gpio_direction_output(MX51EVK_LCD_BACKLIGHT, 1); 74*5d71bd21SVikram Narayanan } 75*5d71bd21SVikram Narayanan 76*5d71bd21SVikram Narayanan void lcd_enable(void) 77*5d71bd21SVikram Narayanan { 78*5d71bd21SVikram Narayanan int ret = ipuv3_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565); 79*5d71bd21SVikram Narayanan if (ret) 80*5d71bd21SVikram Narayanan printf("LCD cannot be configured: %d\n", ret); 81*5d71bd21SVikram Narayanan } 82