| Vikram Narayanan | 9ddfa24 | 2012-11-10 02:28:52 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Freescale Semiconductor, Inc. |
| 3 | * Fabio Estevam <fabio.estevam@freescale.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | #include <linux/list.h> |
| 26 | #include <asm/gpio.h> |
| 27 | #include <asm/arch/iomux.h> |
| 28 | #include <linux/fb.h> |
| 29 | #include <ipu_pixfmt.h> |
| 30 | |
| 31 | #define MX51EVK_LCD_3V3 IMX_GPIO_NR(4, 9) |
| 32 | #define MX51EVK_LCD_5V IMX_GPIO_NR(4, 10) |
| 33 | #define MX51EVK_LCD_BACKLIGHT IMX_GPIO_NR(3, 4) |
| 34 | |
| 35 | static struct fb_videomode const claa_wvga = { |
| 36 | .name = "CLAA07LC0ACW", |
| 37 | .refresh = 57, |
| 38 | .xres = 800, |
| 39 | .yres = 480, |
| 40 | .pixclock = 37037, |
| 41 | .left_margin = 40, |
| 42 | .right_margin = 60, |
| 43 | .upper_margin = 10, |
| 44 | .lower_margin = 10, |
| 45 | .hsync_len = 20, |
| 46 | .vsync_len = 10, |
| 47 | .sync = 0, |
| 48 | .vmode = FB_VMODE_NONINTERLACED |
| 49 | }; |
| 50 | |
| 51 | void setup_iomux_lcd(void) |
| 52 | { |
| 53 | /* DI2_PIN15 */ |
| 54 | mxc_request_iomux(MX51_PIN_DI_GP4, IOMUX_CONFIG_ALT4); |
| 55 | |
| 56 | /* Pad settings for MX51_PIN_DI2_DISP_CLK */ |
| 57 | mxc_iomux_set_pad(MX51_PIN_DI2_DISP_CLK, PAD_CTL_HYS_NONE | |
| 58 | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | |
| 59 | PAD_CTL_DRV_MAX | PAD_CTL_SRE_SLOW); |
| 60 | |
| 61 | /* Turn on 3.3V voltage for LCD */ |
| 62 | mxc_request_iomux(MX51_PIN_CSI2_D12, IOMUX_CONFIG_ALT3); |
| 63 | gpio_direction_output(MX51EVK_LCD_3V3, 1); |
| 64 | |
| 65 | /* Turn on 5V voltage for LCD */ |
| 66 | mxc_request_iomux(MX51_PIN_CSI2_D13, IOMUX_CONFIG_ALT3); |
| 67 | gpio_direction_output(MX51EVK_LCD_5V, 1); |
| 68 | |
| 69 | /* Turn on GPIO backlight */ |
| 70 | mxc_request_iomux(MX51_PIN_DI1_D1_CS, IOMUX_CONFIG_ALT4); |
| 71 | mxc_iomux_set_input(MX51_GPIO3_IPP_IND_G_IN_4_SELECT_INPUT, |
| 72 | INPUT_CTL_PATH1); |
| 73 | gpio_direction_output(MX51EVK_LCD_BACKLIGHT, 1); |
| 74 | } |
| 75 | |
| 76 | void lcd_enable(void) |
| 77 | { |
| 78 | int ret = ipuv3_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565); |
| 79 | if (ret) |
| 80 | printf("LCD cannot be configured: %d\n", ret); |
| 81 | } |