avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/board/freescale/t1040qds/diu.c

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ * Author: Priyanka Jain <Priyanka.Jain@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/ctype.h>
+#include <asm/io.h>
+#include <stdio_dev.h>
+#include <video_fb.h>
+#include <fsl_diu_fb.h>
+#include "../common/qixis.h"
+#include "../common/diu_ch7301.h"
+#include "t1040qds.h"
+#include "t1040qds_qixis.h"
+
+/*
+ * DIU Area Descriptor
+ *
+ * Note that we need to byte-swap the value before it's written to the AD
+ * register.  So even though the registers don't look like they're in the same
+ * bit positions as they are on the MPC8610, the same value is written to the
+ * AD register on the MPC8610 and on the P1022.
+ */
+#define AD_BYTE_F		0x10000000
+#define AD_ALPHA_C_SHIFT	25
+#define AD_BLUE_C_SHIFT		23
+#define AD_GREEN_C_SHIFT	21
+#define AD_RED_C_SHIFT		19
+#define AD_PIXEL_S_SHIFT	16
+#define AD_COMP_3_SHIFT		12
+#define AD_COMP_2_SHIFT		8
+#define AD_COMP_1_SHIFT		4
+#define AD_COMP_0_SHIFT		0
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+	unsigned long speed_ccb, temp;
+	u32 pixval;
+	int ret = 0;
+	speed_ccb = get_bus_freq(0);
+	temp = 1000000000 / pixclock;
+	temp *= 1000;
+	pixval = speed_ccb / temp;
+
+	/* Program HDMI encoder */
+	/* Switch channel to DIU */
+	select_i2c_ch_pca9547(I2C_MUX_CH_DIU);
+
+	/* Set dispaly encoder */
+	ret = diu_set_dvi_encoder(temp);
+	if (ret) {
+		puts("Failed to set DVI encoder\n");
+		return;
+	}
+
+	/* Switch channel to default */
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+
+	/* Program pixel clock */
+	out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR,
+		 ((pixval << PXCK_BITS_START) & PXCK_MASK));
+	/* enable clock*/
+	out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR, PXCKEN_MASK |
+		 ((pixval << PXCK_BITS_START) & PXCK_MASK));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+	u32 pixel_format;
+	u8 sw;
+
+	/*Route I2C4 to DIU system as HSYNC/VSYNC*/
+	sw = QIXIS_READ(brdcfg[5]);
+	QIXIS_WRITE(brdcfg[5],
+		    ((sw & ~(BRDCFG5_IMX_MASK)) | (BRDCFG5_IMX_DIU)));
+
+	/*Configure Display ouput port as HDMI*/
+	sw = QIXIS_READ(brdcfg[15]);
+	QIXIS_WRITE(brdcfg[15],
+		    ((sw & ~(BRDCFG15_LCDPD_MASK | BRDCFG15_DIUSEL_MASK))
+		      | (BRDCFG15_LCDPD_ENABLED | BRDCFG15_DIUSEL_HDMI)));
+
+	pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) |
+		(0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) |
+		(2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) |
+		(8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) |
+		(8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT));
+
+	printf("DIU:   Switching to monitor @ %ux%u\n",  xres, yres);
+
+
+	return fsl_diu_init(xres, yres, pixel_format, 0);
+}