video, da8xx-fb: changes for am335x usage

to use this driver also on am335x based boards, the following
changes are made:

- struct lcd_ctrl_config lcd_cfg is now configurable
  through board code

- controller base is configurable through define
  DA8XX_LCD_CNTL_BASE. To be compatible with older
  da8xx based boards: If this define is missing, the
  DAVINCI_LCD_CNTL_BASE is used

- Determine LCD IP Version, and make the driver
  working on lcd revision register values:
  Version 1:
  0x4C100102
  Version 2:
  0x4F200800
  0x4F201000

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Tom Rini <trini@ti.com>
Acked-by: Tom Rini <trini@ti.com>

2 files changed, 282 insertions, 57 deletions

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index dd7ce36..b0bde2d 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -26,8 +26,15 @@
 #include "videomodes.h"
 #include "da8xx-fb.h"
 
+#if !defined(DA8XX_LCD_CNTL_BASE)
+#define DA8XX_LCD_CNTL_BASE	DAVINCI_LCD_CNTL_BASE
+#endif
+
 #define DRIVER_NAME "da8xx_lcdc"
 
+#define LCD_VERSION_1	1
+#define LCD_VERSION_2	2
+
 /* LCD Status Register */
 #define LCD_END_OF_FRAME1		(1 << 9)
 #define LCD_END_OF_FRAME0		(1 << 8)
@@ -42,9 +49,14 @@
 #define LCD_DMA_BURST_4			0x2
 #define LCD_DMA_BURST_8			0x3
 #define LCD_DMA_BURST_16		0x4
-#define LCD_END_OF_FRAME_INT_ENA	(1 << 2)
+#define LCD_V1_END_OF_FRAME_INT_ENA	(1 << 2)
+#define LCD_V2_END_OF_FRAME0_INT_ENA	(1 << 8)
+#define LCD_V2_END_OF_FRAME1_INT_ENA	(1 << 9)
 #define LCD_DUAL_FRAME_BUFFER_ENABLE	(1 << 0)
 
+#define LCD_V2_TFT_24BPP_MODE		(1 << 25)
+#define LCD_V2_TFT_24BPP_UNPACK		(1 << 26)
+
 /* LCD Control Register */
 #define LCD_CLK_DIVISOR(x)		((x) << 8)
 #define LCD_RASTER_MODE			0x01
@@ -58,12 +70,20 @@
 #define LCD_MONO_8BIT_MODE		(1 << 9)
 #define LCD_RASTER_ORDER		(1 << 8)
 #define LCD_TFT_MODE			(1 << 7)
-#define LCD_UNDERFLOW_INT_ENA		(1 << 6)
-#define LCD_PL_ENABLE			(1 << 4)
+#define LCD_V1_UNDERFLOW_INT_ENA	(1 << 6)
+#define LCD_V2_UNDERFLOW_INT_ENA	(1 << 5)
+#define LCD_V1_PL_INT_ENA		(1 << 4)
+#define LCD_V2_PL_INT_ENA		(1 << 6)
 #define LCD_MONOCHROME_MODE		(1 << 1)
 #define LCD_RASTER_ENABLE		(1 << 0)
 #define LCD_TFT_ALT_ENABLE		(1 << 23)
 #define LCD_STN_565_ENABLE		(1 << 24)
+#define LCD_V2_DMA_CLK_EN		(1 << 2)
+#define LCD_V2_LIDD_CLK_EN		(1 << 1)
+#define LCD_V2_CORE_CLK_EN		(1 << 0)
+#define LCD_V2_LPP_B10			26
+#define LCD_V2_TFT_24BPP_MODE		(1 << 25)
+#define LCD_V2_TFT_24BPP_UNPACK		(1 << 26)
 
 /* LCD Raster Timing 2 Register */
 #define LCD_AC_BIAS_TRANSITIONS_PER_INT(x)	((x) << 16)
@@ -74,6 +94,8 @@
 #define LCD_INVERT_LINE_CLOCK			(1 << 21)
 #define LCD_INVERT_FRAME_CLOCK			(1 << 20)
 
+/* Clock registers available only on Version 2 */
+#define  LCD_CLK_MAIN_RESET			(1 << 3)
 /* LCD Block */
 struct da8xx_lcd_regs {
 	u32	revid;
@@ -97,6 +119,15 @@ struct da8xx_lcd_regs {
 	u32	dma_frm_buf_ceiling_addr_0;
 	u32	dma_frm_buf_base_addr_1;
 	u32	dma_frm_buf_ceiling_addr_1;
+	u32	resv1;
+	u32	raw_stat;
+	u32	masked_stat;
+	u32	int_ena_set;
+	u32	int_ena_clr;
+	u32	end_of_int_ind;
+	/* Clock registers available only on Version 2 */
+	u32	clk_ena;
+	u32	clk_reset;
 };
 
 #define LCD_NUM_BUFFERS	1
@@ -107,6 +138,8 @@ struct da8xx_lcd_regs {
 #define RIGHT_MARGIN	64
 #define UPPER_MARGIN	32
 #define LOWER_MARGIN	32
+#define WAIT_FOR_FRAME_DONE	true
+#define NO_WAIT_FOR_FRAME_DONE	false
 
 #define calc_fbsize() (panel.plnSizeX * panel.plnSizeY * panel.gdfBytesPP)
 
@@ -119,6 +152,8 @@ static GraphicDevice gpanel;
 static const struct da8xx_panel *lcd_panel;
 static struct fb_info *da8xx_fb_info;
 static int bits_x_pixel;
+static unsigned int lcd_revision;
+const struct lcd_ctrl_config *da8xx_lcd_cfg;
 
 static inline unsigned int lcdc_read(u32 *addr)
 {
@@ -179,35 +214,24 @@ static struct fb_fix_screeninfo da8xx_fb_fix = {
 	.accel = FB_ACCEL_NONE
 };
 
-static const struct display_panel disp_panel = {
-	QVGA,
-	16,
-	16,
-	COLOR_ACTIVE,
-};
-
-static const struct lcd_ctrl_config lcd_cfg = {
-	&disp_panel,
-	.ac_bias		= 255,
-	.ac_bias_intrpt		= 0,
-	.dma_burst_sz		= 16,
-	.bpp			= 16,
-	.fdd			= 255,
-	.tft_alt_mode		= 0,
-	.stn_565_mode		= 0,
-	.mono_8bit_mode		= 0,
-	.invert_line_clock	= 1,
-	.invert_frm_clock	= 1,
-	.sync_edge		= 0,
-	.sync_ctrl		= 1,
-	.raster_order		= 0,
-};
-
 /* Enable the Raster Engine of the LCD Controller */
 static inline void lcd_enable_raster(void)
 {
 	u32 reg;
 
+	/* Put LCDC in reset for several cycles */
+	if (lcd_revision == LCD_VERSION_2)
+		lcdc_write(LCD_CLK_MAIN_RESET,
+			   &da8xx_fb_reg_base->clk_reset);
+
+	udelay(1000);
+	/* Bring LCDC out of reset */
+	if (lcd_revision == LCD_VERSION_2)
+		lcdc_write(0,
+			   &da8xx_fb_reg_base->clk_reset);
+
+	udelay(1000);
+
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_ctrl);
 	if (!(reg & LCD_RASTER_ENABLE))
 		lcdc_write(reg | LCD_RASTER_ENABLE,
@@ -215,14 +239,40 @@ static inline void lcd_enable_raster(void)
 }
 
 /* Disable the Raster Engine of the LCD Controller */
-static inline void lcd_disable_raster(void)
+static inline void lcd_disable_raster(bool wait_for_frame_done)
 {
 	u32 reg;
+	u32 loop_cnt = 0;
+	u32 stat;
+	u32 i = 0;
+
+	if (wait_for_frame_done)
+		loop_cnt = 5000;
 
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_ctrl);
 	if (reg & LCD_RASTER_ENABLE)
 		lcdc_write(reg & ~LCD_RASTER_ENABLE,
 			&da8xx_fb_reg_base->raster_ctrl);
+
+	/* Wait for the current frame to complete */
+	do {
+		if (lcd_revision == LCD_VERSION_1)
+			stat = lcdc_read(&da8xx_fb_reg_base->stat);
+		else
+			stat = lcdc_read(&da8xx_fb_reg_base->raw_stat);
+
+		mdelay(1);
+	} while (!(stat & 0x01) && (i++ < loop_cnt));
+
+	if (lcd_revision == LCD_VERSION_1)
+		lcdc_write(stat, &da8xx_fb_reg_base->stat);
+	else
+		lcdc_write(stat, &da8xx_fb_reg_base->raw_stat);
+
+	if ((loop_cnt != 0) && (i >= loop_cnt)) {
+		printf("LCD Controller timed out\n");
+		return;
+	}
 }
 
 static void lcd_blit(int load_mode, struct da8xx_fb_par *par)
@@ -231,6 +281,7 @@ static void lcd_blit(int load_mode, struct da8xx_fb_par *par)
 	u32 end;
 	u32 reg_ras;
 	u32 reg_dma;
+	u32 reg_int;
 
 	/* init reg to clear PLM (loading mode) fields */
 	reg_ras = lcdc_read(&da8xx_fb_reg_base->raster_ctrl);
@@ -243,7 +294,15 @@ static void lcd_blit(int load_mode, struct da8xx_fb_par *par)
 		end      = par->dma_end;
 
 		reg_ras |= LCD_PALETTE_LOAD_MODE(DATA_ONLY);
-		reg_dma |= LCD_END_OF_FRAME_INT_ENA;
+		if (lcd_revision == LCD_VERSION_1) {
+			reg_dma |= LCD_V1_END_OF_FRAME_INT_ENA;
+		} else {
+			reg_int = lcdc_read(&da8xx_fb_reg_base->int_ena_set) |
+				LCD_V2_END_OF_FRAME0_INT_ENA |
+				LCD_V2_END_OF_FRAME1_INT_ENA |
+				LCD_V2_UNDERFLOW_INT_ENA | LCD_SYNC_LOST;
+			lcdc_write(reg_int, &da8xx_fb_reg_base->int_ena_set);
+		}
 
 #if (LCD_NUM_BUFFERS == 2)
 		reg_dma |= LCD_DUAL_FRAME_BUFFER_ENABLE;
@@ -264,7 +323,13 @@ static void lcd_blit(int load_mode, struct da8xx_fb_par *par)
 		end      = start + par->palette_sz - 1;
 
 		reg_ras |= LCD_PALETTE_LOAD_MODE(PALETTE_ONLY);
-		reg_ras |= LCD_PL_ENABLE;
+		if (lcd_revision == LCD_VERSION_1) {
+			reg_ras |= LCD_V1_PL_INT_ENA;
+		} else {
+			reg_int = lcdc_read(&da8xx_fb_reg_base->int_ena_set) |
+				LCD_V2_PL_INT_ENA;
+			lcdc_write(reg_int, &da8xx_fb_reg_base->int_ena_set);
+		}
 
 		lcdc_write(start, &da8xx_fb_reg_base->dma_frm_buf_base_addr_0);
 		lcdc_write(end, &da8xx_fb_reg_base->dma_frm_buf_ceiling_addr_0);
@@ -348,6 +413,7 @@ static void lcd_cfg_vertical_sync(int back_porch, int pulse_width,
 static int lcd_cfg_display(const struct lcd_ctrl_config *cfg)
 {
 	u32 reg;
+	u32 reg_int;
 
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_ctrl) & ~(LCD_TFT_MODE |
 						LCD_MONO_8BIT_MODE |
@@ -375,7 +441,13 @@ static int lcd_cfg_display(const struct lcd_ctrl_config *cfg)
 	}
 
 	/* enable additional interrupts here */
-	reg |= LCD_UNDERFLOW_INT_ENA;
+	if (lcd_revision == LCD_VERSION_1) {
+		reg |= LCD_V1_UNDERFLOW_INT_ENA;
+	} else {
+		reg_int = lcdc_read(&da8xx_fb_reg_base->int_ena_set) |
+			LCD_V2_UNDERFLOW_INT_ENA;
+		lcdc_write(reg_int, &da8xx_fb_reg_base->int_ena_set);
+	}
 
 	lcdc_write(reg, &da8xx_fb_reg_base->raster_ctrl);
 
@@ -413,22 +485,53 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par *par, u32 width, u32 height,
 
 	/* Set the Panel Width */
 	/* Pixels per line = (PPL + 1)*16 */
-	/*0x3F in bits 4..9 gives max horisontal resolution = 1024 pixels*/
-	width &= 0x3f0;
+	if (lcd_revision == LCD_VERSION_1) {
+		/*
+		 * 0x3F in bits 4..9 gives max horisontal resolution = 1024
+		 * pixels
+		 */
+		width &= 0x3f0;
+	} else {
+		/*
+		 * 0x7F in bits 4..10 gives max horizontal resolution = 2048
+		 * pixels.
+		 */
+		width &= 0x7f0;
+	}
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_timing_0);
 	reg &= 0xfffffc00;
-	reg |= ((width >> 4) - 1) << 4;
+	if (lcd_revision == LCD_VERSION_1) {
+		reg |= ((width >> 4) - 1) << 4;
+	} else {
+		width = (width >> 4) - 1;
+		reg |= ((width & 0x3f) << 4) | ((width & 0x40) >> 3);
+	}
 	lcdc_write(reg, &da8xx_fb_reg_base->raster_timing_0);
 
 	/* Set the Panel Height */
+	/* Set bits 9:0 of Lines Per Pixel */
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_timing_1);
 	reg = ((height - 1) & 0x3ff) | (reg & 0xfffffc00);
 	lcdc_write(reg, &da8xx_fb_reg_base->raster_timing_1);
 
+	/* Set bit 10 of Lines Per Pixel */
+	if (lcd_revision == LCD_VERSION_2) {
+		reg = lcdc_read(&da8xx_fb_reg_base->raster_timing_2);
+		reg |= ((height - 1) & 0x400) << 16;
+		lcdc_write(reg, &da8xx_fb_reg_base->raster_timing_2);
+	}
+
 	/* Set the Raster Order of the Frame Buffer */
 	reg = lcdc_read(&da8xx_fb_reg_base->raster_ctrl) & ~(1 << 8);
 	if (raster_order)
 		reg |= LCD_RASTER_ORDER;
+
+	if (bpp == 24)
+		reg |= (LCD_TFT_MODE | LCD_V2_TFT_24BPP_MODE);
+	else if (bpp == 32)
+		reg |= (LCD_TFT_MODE | LCD_V2_TFT_24BPP_MODE
+				| LCD_V2_TFT_24BPP_UNPACK);
+
 	lcdc_write(reg, &da8xx_fb_reg_base->raster_ctrl);
 
 	switch (bpp) {
@@ -436,6 +539,8 @@ static int lcd_cfg_frame_buffer(struct da8xx_fb_par *par, u32 width, u32 height,
 	case 2:
 	case 4:
 	case 16:
+	case 24:
+	case 32:
 		par->palette_sz = 16 * 2;
 		break;
 
@@ -494,6 +599,23 @@ static int fb_setcolreg(unsigned regno, unsigned red, unsigned green,
 			update_hw = 1;
 			palette[0] = 0x4000;
 		}
+	} else if (((info->var.bits_per_pixel == 32) && regno < 32) ||
+		   ((info->var.bits_per_pixel == 24) && regno < 24)) {
+		red >>= (24 - info->var.red.length);
+		red <<= info->var.red.offset;
+
+		green >>= (24 - info->var.green.length);
+		green <<= info->var.green.offset;
+
+		blue >>= (24 - info->var.blue.length);
+		blue <<= info->var.blue.offset;
+
+		par->pseudo_palette[regno] = red | green | blue;
+
+		if (palette[0] != 0x4000) {
+			update_hw = 1;
+			palette[0] = 0x4000;
+		}
 	}
 
 	/* Update the palette in the h/w as needed. */
@@ -506,11 +628,18 @@ static int fb_setcolreg(unsigned regno, unsigned red, unsigned green,
 static void lcd_reset(struct da8xx_fb_par *par)
 {
 	/* Disable the Raster if previously Enabled */
-	lcd_disable_raster();
+	lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
 
 	/* DMA has to be disabled */
 	lcdc_write(0, &da8xx_fb_reg_base->dma_ctrl);
 	lcdc_write(0, &da8xx_fb_reg_base->raster_ctrl);
+
+	if (lcd_revision == LCD_VERSION_2) {
+		lcdc_write(0, &da8xx_fb_reg_base->int_ena_set);
+		/* Write 1 to reset */
+		lcdc_write(LCD_CLK_MAIN_RESET, &da8xx_fb_reg_base->clk_reset);
+		lcdc_write(0, &da8xx_fb_reg_base->clk_reset);
+	}
 }
 
 static void lcd_calc_clk_divider(struct da8xx_fb_par *par)
@@ -521,12 +650,17 @@ static void lcd_calc_clk_divider(struct da8xx_fb_par *par)
 	lcd_clk = clk_get(2);
 
 	div = lcd_clk / par->pxl_clk;
-	debug("LCD Clock: 0x%x Divider: 0x%x PixClk: 0x%x\n",
-		lcd_clk, div, par->pxl_clk);
+	debug("LCD Clock: %d Divider: %d PixClk: %d\n",
+	      lcd_clk, div, par->pxl_clk);
 
 	/* Configure the LCD clock divisor. */
 	lcdc_write(LCD_CLK_DIVISOR(div) |
 			(LCD_RASTER_MODE & 0x1), &da8xx_fb_reg_base->ctrl);
+
+	if (lcd_revision == LCD_VERSION_2)
+		lcdc_write(LCD_V2_DMA_CLK_EN | LCD_V2_LIDD_CLK_EN |
+				LCD_V2_CORE_CLK_EN,
+				&da8xx_fb_reg_base->clk_ena);
 }
 
 static int lcd_init(struct da8xx_fb_par *par, const struct lcd_ctrl_config *cfg,
@@ -566,7 +700,8 @@ static int lcd_init(struct da8xx_fb_par *par, const struct lcd_ctrl_config *cfg,
 	if (ret < 0)
 		return ret;
 
-	if (QVGA != cfg->p_disp_panel->panel_type)
+	if ((QVGA != cfg->p_disp_panel->panel_type) &&
+	    (WVGA != cfg->p_disp_panel->panel_type))
 		return -EINVAL;
 
 	if (cfg->bpp <= cfg->p_disp_panel->max_bpp &&
@@ -602,7 +737,7 @@ static void lcdc_dma_start(void)
 		&da8xx_fb_reg_base->dma_frm_buf_ceiling_addr_1);
 }
 
-static u32 lcdc_irq_handler(void)
+static u32 lcdc_irq_handler_rev01(void)
 {
 	struct da8xx_fb_par *par = da8xx_fb_info->par;
 	u32 stat = lcdc_read(&da8xx_fb_reg_base->stat);
@@ -610,7 +745,7 @@ static u32 lcdc_irq_handler(void)
 
 	if ((stat & LCD_SYNC_LOST) && (stat & LCD_FIFO_UNDERFLOW)) {
 		debug("LCD_SYNC_LOST\n");
-		lcd_disable_raster();
+		lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
 		lcdc_write(stat, &da8xx_fb_reg_base->stat);
 		lcd_enable_raster();
 		return LCD_SYNC_LOST;
@@ -622,13 +757,13 @@ static u32 lcdc_irq_handler(void)
 		 * interrupt via the following write to the status register. If
 		 * this is done after then one gets multiple PL done interrupts.
 		 */
-		lcd_disable_raster();
+		lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
 
 		lcdc_write(stat, &da8xx_fb_reg_base->stat);
 
 		/* Disable PL completion inerrupt */
 		reg_ras  = lcdc_read(&da8xx_fb_reg_base->raster_ctrl);
-		reg_ras &= ~LCD_PL_ENABLE;
+		reg_ras &= ~LCD_V1_PL_INT_ENA;
 		lcdc_write(reg_ras, &da8xx_fb_reg_base->raster_ctrl);
 
 		/* Setup and start data loading mode */
@@ -650,6 +785,66 @@ static u32 lcdc_irq_handler(void)
 	return stat;
 }
 
+static u32 lcdc_irq_handler_rev02(void)
+{
+	struct da8xx_fb_par *par = da8xx_fb_info->par;
+	u32 stat = lcdc_read(&da8xx_fb_reg_base->masked_stat);
+	u32 reg_int;
+
+	if ((stat & LCD_SYNC_LOST) && (stat & LCD_FIFO_UNDERFLOW)) {
+		debug("LCD_SYNC_LOST\n");
+		lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
+		lcdc_write(stat, &da8xx_fb_reg_base->masked_stat);
+		lcd_enable_raster();
+		lcdc_write(0, &da8xx_fb_reg_base->end_of_int_ind);
+		return LCD_SYNC_LOST;
+	} else if (stat & LCD_PL_LOAD_DONE) {
+		debug("LCD_PL_LOAD_DONE\n");
+		/*
+		 * Must disable raster before changing state of any control bit.
+		 * And also must be disabled before clearing the PL loading
+		 * interrupt via the following write to the status register. If
+		 * this is done after then one gets multiple PL done interrupts.
+		 */
+		lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
+
+		lcdc_write(stat, &da8xx_fb_reg_base->masked_stat);
+
+		/* Disable PL completion inerrupt */
+		reg_int  = lcdc_read(&da8xx_fb_reg_base->int_ena_clr) |
+			(LCD_V2_PL_INT_ENA);
+		lcdc_write(reg_int, &da8xx_fb_reg_base->int_ena_clr);
+
+		/* Setup and start data loading mode */
+		lcd_blit(LOAD_DATA, par);
+		lcdc_write(0, &da8xx_fb_reg_base->end_of_int_ind);
+		return LCD_PL_LOAD_DONE;
+	} else {
+		lcdc_write(stat, &da8xx_fb_reg_base->masked_stat);
+
+		if (stat & LCD_END_OF_FRAME0)
+			debug("LCD_END_OF_FRAME0\n");
+
+		lcdc_write(par->dma_start,
+			   &da8xx_fb_reg_base->dma_frm_buf_base_addr_0);
+		lcdc_write(par->dma_end,
+			   &da8xx_fb_reg_base->dma_frm_buf_ceiling_addr_0);
+		par->vsync_flag = 1;
+		lcdc_write(0, &da8xx_fb_reg_base->end_of_int_ind);
+		return LCD_END_OF_FRAME0;
+	}
+	lcdc_write(0, &da8xx_fb_reg_base->end_of_int_ind);
+	return stat;
+}
+
+static u32 lcdc_irq_handler(void)
+{
+	if (lcd_revision == LCD_VERSION_1)
+		return lcdc_irq_handler_rev01();
+	else
+		return lcdc_irq_handler_rev02();
+}
+
 static u32 wait_for_event(u32 event)
 {
 	u32 timeout = 50000;
@@ -673,6 +868,7 @@ void *video_hw_init(void)
 {
 	struct da8xx_fb_par *par;
 	u32 size;
+	u32 rev;
 	char *p;
 
 	if (!lcd_panel) {
@@ -685,6 +881,10 @@ void *video_hw_init(void)
 	gpanel.plnSizeY = lcd_panel->height;
 
 	switch (bits_x_pixel) {
+	case 32:
+		gpanel.gdfBytesPP = 4;
+		gpanel.gdfIndex = GDF_32BIT_X888RGB;
+		break;
 	case 24:
 		gpanel.gdfBytesPP = 4;
 		gpanel.gdfIndex = GDF_32BIT_X888RGB;
@@ -699,12 +899,29 @@ void *video_hw_init(void)
 		break;
 	}
 
-	da8xx_fb_reg_base = (struct da8xx_lcd_regs *)DAVINCI_LCD_CNTL_BASE;
+	da8xx_fb_reg_base = (struct da8xx_lcd_regs *)DA8XX_LCD_CNTL_BASE;
+
+	/* Determine LCD IP Version */
+	rev = lcdc_read(&da8xx_fb_reg_base->revid);
+	switch (rev) {
+	case 0x4C100102:
+		lcd_revision = LCD_VERSION_1;
+		break;
+	case 0x4F200800:
+	case 0x4F201000:
+		lcd_revision = LCD_VERSION_2;
+		break;
+	default:
+		printf("Unknown PID Reg value 0x%x, defaulting to LCD revision 1\n",
+		       rev);
+		lcd_revision = LCD_VERSION_1;
+		break;
+	}
 
-	debug("Resolution: %dx%d %x\n",
-		gpanel.winSizeX,
-		gpanel.winSizeY,
-		lcd_cfg.bpp);
+	debug("rev: 0x%x Resolution: %dx%d %d\n", rev,
+	      gpanel.winSizeX,
+	      gpanel.winSizeY,
+	      da8xx_lcd_cfg->bpp);
 
 	size = sizeof(struct fb_info) + sizeof(struct da8xx_fb_par);
 	da8xx_fb_info = malloc(size);
@@ -722,13 +939,14 @@ void *video_hw_init(void)
 	par = da8xx_fb_info->par;
 	par->pxl_clk = lcd_panel->pxl_clk;
 
-	if (lcd_init(par, &lcd_cfg, lcd_panel) < 0) {
+	if (lcd_init(par, da8xx_lcd_cfg, lcd_panel) < 0) {
 		printf("lcd_init failed\n");
 		goto err_release_fb;
 	}
 
 	/* allocate frame buffer */
-	par->vram_size = lcd_panel->width * lcd_panel->height * lcd_cfg.bpp;
+	par->vram_size = lcd_panel->width * lcd_panel->height *
+			da8xx_lcd_cfg->bpp;
 	par->vram_size = par->vram_size * LCD_NUM_BUFFERS / 8;
 
 	par->vram_virt = malloc(par->vram_size);
@@ -746,7 +964,7 @@ void *video_hw_init(void)
 	da8xx_fb_info->screen_base = (char *) par->vram_virt;
 	da8xx_fb_fix.smem_start	= gpanel.frameAdrs;
 	da8xx_fb_fix.smem_len = par->vram_size;
-	da8xx_fb_fix.line_length = (lcd_panel->width * lcd_cfg.bpp) / 8;
+	da8xx_fb_fix.line_length = (lcd_panel->width * da8xx_lcd_cfg->bpp) / 8;
 
 	par->dma_start = par->vram_phys;
 	par->dma_end   = par->dma_start + lcd_panel->height *
@@ -762,7 +980,7 @@ void *video_hw_init(void)
 	par->p_palette_base = (unsigned int)par->v_palette_base;
 
 	/* Initialize par */
-	da8xx_fb_info->var.bits_per_pixel = lcd_cfg.bpp;
+	da8xx_fb_info->var.bits_per_pixel = da8xx_lcd_cfg->bpp;
 
 	da8xx_fb_var.xres = lcd_panel->width;
 	da8xx_fb_var.xres_virtual = lcd_panel->width;
@@ -771,8 +989,8 @@ void *video_hw_init(void)
 	da8xx_fb_var.yres_virtual = lcd_panel->height * LCD_NUM_BUFFERS;
 
 	da8xx_fb_var.grayscale =
-	    lcd_cfg.p_disp_panel->panel_shade == MONOCHROME ? 1 : 0;
-	da8xx_fb_var.bits_per_pixel = lcd_cfg.bpp;
+	    da8xx_lcd_cfg->p_disp_panel->panel_shade == MONOCHROME ? 1 : 0;
+	da8xx_fb_var.bits_per_pixel = da8xx_lcd_cfg->bpp;
 
 	da8xx_fb_var.hsync_len = lcd_panel->hsw;
 	da8xx_fb_var.vsync_len = lcd_panel->vsw;
@@ -787,8 +1005,11 @@ void *video_hw_init(void)
 
 	/* Clear interrupt */
 	memset((void *)par->vram_virt, 0, par->vram_size);
-	lcd_disable_raster();
-	lcdc_write(0xFFFF, &da8xx_fb_reg_base->stat);
+	lcd_disable_raster(NO_WAIT_FOR_FRAME_DONE);
+	if (lcd_revision == LCD_VERSION_1)
+		lcdc_write(0xFFFF, &da8xx_fb_reg_base->stat);
+	else
+		lcdc_write(0xFFFF, &da8xx_fb_reg_base->masked_stat);
 	debug("Palette at 0x%x size %d\n", par->p_palette_base,
 		par->palette_sz);
 	lcdc_dma_start();
@@ -823,8 +1044,10 @@ void video_set_lut(unsigned int index,	/* color number */
 	return;
 }
 
-void da8xx_video_init(const struct da8xx_panel *panel, int bits_pixel)
+void da8xx_video_init(const struct da8xx_panel *panel,
+		      const struct lcd_ctrl_config *lcd_cfg, int bits_pixel)
 {
 	lcd_panel = panel;
+	da8xx_lcd_cfg = lcd_cfg;
 	bits_x_pixel = bits_pixel;
 }
diff --git a/drivers/video/da8xx-fb.h b/drivers/video/da8xx-fb.h
index f48fdfd..6447a40 100644
--- a/drivers/video/da8xx-fb.h
+++ b/drivers/video/da8xx-fb.h
@@ -109,6 +109,8 @@ struct lcd_sync_arg {
 	int pulse_width;
 };
 
-void da8xx_video_init(const struct da8xx_panel *panel, int bits_pixel);
+void da8xx_video_init(const struct da8xx_panel *panel,
+		      const struct lcd_ctrl_config *lcd_cfg,
+		      int bits_pixel);
 
 #endif  /* ifndef DA8XX_FB_H */