ls102xa: dcu: Add platform support for DCU on LS1021ATWR board

[oweals/u-boot.git] / board / freescale / ls1021atwr / dcu.c

diff --git a/board/freescale/ls1021atwr/dcu.c b/board/freescale/ls1021atwr/dcu.c
new file mode 100644 (file)
index 0000000..8fe4ccb
--- /dev/null
+++ b/board/freescale/ls1021atwr/dcu.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * FSL DCU Framebuffer driver
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <fsl_dcu_fb.h>
+#include "div64.h"
+#include "../common/dcu_sii9022a.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+unsigned int dcu_set_pixel_clock(unsigned int pixclock)
+{
+       unsigned long long div;
+
+       div = (unsigned long long)(gd->bus_clk / 1000);
+       div *= (unsigned long long)pixclock;
+       do_div(div, 1000000000);
+
+       return div;
+}
+
+int platform_dcu_init(unsigned int xres, unsigned int yres,
+                     const char *port,
+                     struct fb_videomode *dcu_fb_videomode)
+{
+       const char *name;
+       unsigned int pixel_format;
+
+       if (strncmp(port, "twr_lcd", 4) == 0) {
+               name = "TWR_LCD_RGB card";
+       } else {
+               name = "HDMI";
+               dcu_set_dvi_encoder(dcu_fb_videomode);
+       }
+
+       printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
+
+       pixel_format = 32;
+       fsl_dcu_init(xres, yres, pixel_format);
+
+       return 0;
+}