Add ATMEL LCD driver

This patch adds support for the ATMEL LCDC driver which is used on some
AT91 and AVR platforms.

Is has been tested with the AT91CAP9ADK, AT91SAM9261EK, AT91SAM9263EK and
AT91SAM9RLEK boards. Adaptation for AVR32 should probably be easy.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 78 insertions, 1 deletions

diff --git a/common/lcd.c b/common/lcd.c
index 914dc2e..2178f12 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -50,6 +50,12 @@
 #include <lcdvideo.h>
 #endif
 
+#if defined(CONFIG_ATMEL_LCD)
+#include <atmel_lcdc.h>
+#include <nand.h>
+extern nand_info_t nand_info[];
+#endif
+
 #ifdef CONFIG_LCD
 
 /************************************************************************/
@@ -474,14 +480,22 @@ ulong lcd_setmem (ulong addr)
 
 static void lcd_setfgcolor (int color)
 {
+#ifdef CONFIG_ATMEL_LCD
+	lcd_color_fg = color;
+#else
 	lcd_color_fg = color & 0x0F;
+#endif
 }
 
 /*----------------------------------------------------------------------*/
 
 static void lcd_setbgcolor (int color)
 {
+#ifdef CONFIG_ATMEL_LCD
+	lcd_color_bg = color;
+#else
 	lcd_color_bg = color & 0x0F;
+#endif
 }
 
 /*----------------------------------------------------------------------*/
@@ -508,7 +522,11 @@ static int lcd_getbgcolor (void)
 #ifdef CONFIG_LCD_LOGO
 void bitmap_plot (int x, int y)
 {
+#ifdef CONFIG_ATMEL_LCD
+	uint *cmap;
+#else
 	ushort *cmap;
+#endif
 	ushort i, j;
 	uchar *bmap;
 	uchar *fb;
@@ -533,6 +551,8 @@ void bitmap_plot (int x, int y)
 		cmap = (ushort *)fbi->palette;
 #elif defined(CONFIG_MPC823)
 		cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
+#elif defined(CONFIG_ATMEL_LCD)
+		cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 #endif
 
 		WATCHDOG_RESET();
@@ -540,11 +560,26 @@ void bitmap_plot (int x, int y)
 		/* Set color map */
 		for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 			ushort colreg = bmp_logo_palette[i];
+#ifdef CONFIG_ATMEL_LCD
+			uint lut_entry;
+#ifdef CONFIG_ATMEL_LCD_BGR555
+			lut_entry = ((colreg & 0x000F) << 11) |
+				    ((colreg & 0x00F0) <<  2) |
+				    ((colreg & 0x0F00) >>  7);
+#else /* CONFIG_ATMEL_LCD_RGB565 */
+			lut_entry = ((colreg & 0x000F) << 1) |
+				    ((colreg & 0x00F0) << 3) |
+				    ((colreg & 0x0F00) << 4);
+#endif
+			*(cmap + BMP_LOGO_OFFSET) = lut_entry;
+			cmap++;
+#else /* !CONFIG_ATMEL_LCD */
 #ifdef  CFG_INVERT_COLORS
 			*cmap++ = 0xffff - colreg;
 #else
 			*cmap++ = colreg;
 #endif
+#endif /* CONFIG_ATMEL_LCD */
 		}
 
 		WATCHDOG_RESET();
@@ -578,7 +613,9 @@ void bitmap_plot (int x, int y)
  */
 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 {
-#if !defined(CONFIG_MCC200)
+#ifdef CONFIG_ATMEL_LCD
+	uint *cmap;
+#elif !defined(CONFIG_MCC200)
 	ushort *cmap;
 #endif
 	ushort i, j;
@@ -633,6 +670,8 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
 		cmap = (ushort *)fbi->palette;
 #elif defined(CONFIG_MPC823)
 		cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
+#elif defined(CONFIG_ATMEL_LCD)
+		cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 #else
 # error "Don't know location of color map"
 #endif
@@ -708,6 +747,10 @@ static void *lcd_logo (void)
 #ifdef CONFIG_LCD_INFO
 	char info[80];
 	char temp[32];
+#ifdef CONFIG_ATMEL_LCD
+	int i;
+	ulong dram_size, nand_size;
+#endif
 #endif /* CONFIG_LCD_INFO */
 
 #ifdef CONFIG_SPLASH_SCREEN
@@ -765,6 +808,40 @@ static void *lcd_logo (void)
 # endif /* CONFIG_LCD_INFO */
 #endif /* CONFIG_MPC823 */
 
+#ifdef CONFIG_ATMEL_LCD
+# ifdef CONFIG_LCD_INFO
+	sprintf (info, "%s", U_BOOT_VERSION);
+	lcd_drawchars (LCD_INFO_X, LCD_INFO_Y, (uchar *)info, strlen(info));
+
+	sprintf (info, "(C) 2008 ATMEL Corp");
+	lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT,
+					(uchar *)info, strlen(info));
+
+	sprintf (info, "at91support@atmel.com");
+	lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 2,
+					(uchar *)info, strlen(info));
+
+	sprintf (info, "%s CPU at %s MHz",
+		AT91_CPU_NAME,
+		strmhz(temp, AT91_MAIN_CLOCK));
+	lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 3,
+					(uchar *)info, strlen(info));
+
+	dram_size = 0;
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+		dram_size += gd->bd->bi_dram[i].size;
+	nand_size = 0;
+	for (i = 0; i < CFG_MAX_NAND_DEVICE; i++)
+		nand_size += nand_info[i].size;
+	sprintf (info, "  %ld MB SDRAM, %ld MB NAND",
+		dram_size >> 20,
+		nand_size >> 20 );
+	lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
+					(uchar *)info, strlen(info));
+# endif /* CONFIG_LCD_INFO */
+#endif /* CONFIG_ATMEL_LCD */
+
+
 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 	return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 #else