[U-Boot] [PATCH 1/3] mx28evk: Add splash screen support

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at freescale.com>

Enable display support.

Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
---
 board/freescale/mx28evk/iomux.c   |   33 +++++++++++++++++++++++++++++++++
 board/freescale/mx28evk/mx28evk.c |    6 ++++++
 include/configs/mx28evk.h         |   17 +++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/board/freescale/mx28evk/iomux.c b/board/freescale/mx28evk/iomux.c
index ae6eda3..beae0e6 100644
--- a/board/freescale/mx28evk/iomux.c
+++ b/board/freescale/mx28evk/iomux.c
@@ -30,6 +30,7 @@
 #define	MUX_CONFIG_ENET	(MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
 #define	MUX_CONFIG_EMI	(MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)
 #define	MUX_CONFIG_SSP2	(MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP)
+#define	MUX_CONFIG_LCD	(MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL)
 
 const iomux_cfg_t iomux_setup[] = {
 	/* DUART */
@@ -162,6 +163,38 @@ const iomux_cfg_t iomux_setup[] = {
 	/* I2C */
 	MX28_PAD_I2C0_SCL__I2C0_SCL,
 	MX28_PAD_I2C0_SDA__I2C0_SDA,
+
+	/* LCD */
+	MX28_PAD_LCD_D00__LCD_D0 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D01__LCD_D1 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D02__LCD_D2 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D03__LCD_D3 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D04__LCD_D4 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D05__LCD_D5 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D06__LCD_D6 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D07__LCD_D7 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D08__LCD_D8 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D09__LCD_D9 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D10__LCD_D10 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D11__LCD_D11 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D12__LCD_D12 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D13__LCD_D13 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D14__LCD_D14 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D15__LCD_D15 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D16__LCD_D16 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D17__LCD_D17 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D18__LCD_D18 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D19__LCD_D19 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D20__LCD_D20 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D21__LCD_D21 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D22__LCD_D22 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_D23__LCD_D23 | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_RD_E__LCD_VSYNC | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_WR_RWN__LCD_HSYNC | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_RS__LCD_DOTCLK | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_CS__LCD_ENABLE | MUX_CONFIG_LCD,
+	MX28_PAD_LCD_RESET__GPIO_3_30 | MUX_CONFIG_LCD, /* LCD power */
+	MX28_PAD_PWM2__GPIO_3_18 | MUX_CONFIG_LCD, /* LCD contrast */
 };
 
 #define HW_DRAM_CTL29	(0x74 >> 2)
diff --git a/board/freescale/mx28evk/mx28evk.c b/board/freescale/mx28evk/mx28evk.c
index de7231b..8f6c281 100644
--- a/board/freescale/mx28evk/mx28evk.c
+++ b/board/freescale/mx28evk/mx28evk.c
@@ -59,6 +59,12 @@ int board_early_init_f(void)
 	gpio_direction_output(MX28_PAD_AUART2_RX__GPIO_3_8, 1);
 #endif
 
+	/* Power on LCD */
+	gpio_direction_output(MX28_PAD_LCD_RESET__GPIO_3_30, 1);
+
+	/* Set contrast to maximum */
+	gpio_direction_output(MX28_PAD_PWM2__GPIO_3_18, 1);
+
 	return 0;
 }
 
diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
index b22a20b..d6de83f 100644
--- a/include/configs/mx28evk.h
+++ b/include/configs/mx28evk.h
@@ -64,6 +64,7 @@
 #define CONFIG_CMD_BOOTZ
 #define CONFIG_CMD_NAND
 #define CONFIG_CMD_NAND_TRIMFFS
+#define CONFIG_VIDEO
 
 /* Memory configurations */
 #define CONFIG_NR_DRAM_BANKS		1		/* 1 bank of DRAM */
@@ -235,6 +236,22 @@
 #endif
 #endif
 
+/* Framebuffer support */
+#ifdef CONFIG_VIDEO
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_VIDEO_MXS
+#define CONFIG_VIDEO_LOGO
+#define CONFIG_VIDEO_SW_CURSOR
+#define CONFIG_VGA_AS_SINGLE_DEVICE
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_CMD_BMP
+#define CONFIG_BMP_16BPP
+#define CONFIG_VIDEO_BMP_RLE8
+#define CONFIG_VIDEO_BMP_GZIP
+#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE	(512 << 10)
+#endif
+
 /* Boot Linux */
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_SETUP_MEMORY_TAGS
-- 
1.7.9.5