path: root/package/boot/uboot-xburst/patches/0005-add-nanonote-lcd-support.patch

From ca8c5216cfd3ad3fda9867ed2d157ae5a209834b Mon Sep 17 00:00:00 2001
From: Xiangfu <xiangfu@openmobilefree.net>
Date: Wed, 10 Oct 2012 22:05:27 +0800
Subject: [PATCH 5/6] add nanonote lcd support

---
 arch/mips/include/asm/global_data.h |    1 +
 arch/mips/include/asm/jz4740.h      |   90 ++++++++
 arch/mips/lib/board.c               |    6 +
 common/lcd.c                        |    9 +-
 drivers/video/Makefile              |    1 +
 drivers/video/nanonote_gpm940b0.c   |  400 +++++++++++++++++++++++++++++++++++
 drivers/video/nanonote_gpm940b0.h   |  135 ++++++++++++
 include/configs/qi_lb60.h           |    7 +
 include/lcd.h                       |   52 ++++-
 9 files changed, 697 insertions(+), 4 deletions(-)
 create mode 100644 drivers/video/nanonote_gpm940b0.c
 create mode 100644 drivers/video/nanonote_gpm940b0.h

diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h
index cd03d7e..7cec2de 100644
--- a/arch/mips/include/asm/global_data.h
+++ b/arch/mips/include/asm/global_data.h
@@ -44,6 +44,7 @@ typedef	struct	global_data {
 	unsigned long	per_clk;	/* Peripheral bus clock */
 	unsigned long	mem_clk;	/* Memory bus clock */
 	unsigned long	dev_clk;	/* Device clock */
+        unsigned long   fb_base;        /* base address of framebuffer */
 	/* "static data" needed by most of timer.c */
 	unsigned long	tbl;
 	unsigned long	lastinc;
diff --git a/arch/mips/include/asm/jz4740.h b/arch/mips/include/asm/jz4740.h
index 68287fb..13724a2 100644
--- a/arch/mips/include/asm/jz4740.h
+++ b/arch/mips/include/asm/jz4740.h
@@ -1312,5 +1312,95 @@ do { 								\
  	while (REG_MSC_STAT & MSC_STAT_IS_RESETTING);		\
 } while (0)
 
+/*************************************************************************
+ * LCD (LCD Controller)
+ *************************************************************************/
+#define REG32(addr)	*((volatile u32 *)(addr))
+
+#define	CPM_BASE	0xB0000000
+#define CPM_CPCCR	(CPM_BASE+0x00)
+#define REG_CPM_CPCCR	REG32(CPM_CPCCR)
+
+#define	LCD_BASE	0xB3050000
+#define LCD_CFG		(LCD_BASE + 0x00) /* LCD Configure Register */
+#define LCD_VSYNC	(LCD_BASE + 0x04) /* Vertical Synchronize Register */
+#define LCD_HSYNC	(LCD_BASE + 0x08) /* Horizontal Synchronize Register */
+#define LCD_VAT		(LCD_BASE + 0x0c) /* Virtual Area Setting Register */
+#define LCD_DAH		(LCD_BASE + 0x10) /* Display Area Horizontal Start/End Point */
+#define LCD_DAV		(LCD_BASE + 0x14) /* Display Area Vertical Start/End Point */
+#define LCD_PS		(LCD_BASE + 0x18) /* PS Signal Setting */
+#define LCD_CLS		(LCD_BASE + 0x1c) /* CLS Signal Setting */
+#define LCD_SPL		(LCD_BASE + 0x20) /* SPL Signal Setting */
+#define LCD_REV		(LCD_BASE + 0x24) /* REV Signal Setting */
+#define LCD_CTRL	(LCD_BASE + 0x30) /* LCD Control Register */
+#define LCD_STATE	(LCD_BASE + 0x34) /* LCD Status Register */
+#define LCD_IID		(LCD_BASE + 0x38) /* Interrupt ID Register */
+#define LCD_DA0		(LCD_BASE + 0x40) /* Descriptor Address Register 0 */
+#define LCD_SA0		(LCD_BASE + 0x44) /* Source Address Register 0 */
+#define LCD_FID0	(LCD_BASE + 0x48) /* Frame ID Register 0 */
+#define LCD_CMD0	(LCD_BASE + 0x4c) /* DMA Command Register 0 */
+#define LCD_DA1		(LCD_BASE + 0x50) /* Descriptor Address Register 1 */
+#define LCD_SA1		(LCD_BASE + 0x54) /* Source Address Register 1 */
+#define LCD_FID1	(LCD_BASE + 0x58) /* Frame ID Register 1 */
+#define LCD_CMD1	(LCD_BASE + 0x5c) /* DMA Command Register 1 */
+
+#define REG_LCD_CFG	REG32(LCD_CFG)
+#define REG_LCD_VSYNC	REG32(LCD_VSYNC)
+#define REG_LCD_HSYNC	REG32(LCD_HSYNC)
+#define REG_LCD_VAT	REG32(LCD_VAT)
+#define REG_LCD_DAH	REG32(LCD_DAH)
+#define REG_LCD_DAV	REG32(LCD_DAV)
+#define REG_LCD_PS	REG32(LCD_PS)
+#define REG_LCD_CLS	REG32(LCD_CLS)
+#define REG_LCD_SPL	REG32(LCD_SPL)
+#define REG_LCD_REV	REG32(LCD_REV)
+#define REG_LCD_CTRL	REG32(LCD_CTRL)
+#define REG_LCD_STATE	REG32(LCD_STATE)
+#define REG_LCD_IID	REG32(LCD_IID)
+#define REG_LCD_DA0	REG32(LCD_DA0)
+#define REG_LCD_SA0	REG32(LCD_SA0)
+#define REG_LCD_FID0	REG32(LCD_FID0)
+#define REG_LCD_CMD0	REG32(LCD_CMD0)
+#define REG_LCD_DA1	REG32(LCD_DA1)
+#define REG_LCD_SA1	REG32(LCD_SA1)
+#define REG_LCD_FID1	REG32(LCD_FID1)
+#define REG_LCD_CMD1	REG32(LCD_CMD1)
+
+#define LCD_CTRL_BPP_BIT	0  /* Bits Per Pixel */
+#define LCD_CTRL_BPP_MASK	(0x07 << LCD_CTRL_BPP_BIT)
+  #define LCD_CTRL_BPP_1	(0 << LCD_CTRL_BPP_BIT) /* 1 bpp */
+  #define LCD_CTRL_BPP_2	(1 << LCD_CTRL_BPP_BIT) /* 2 bpp */
+  #define LCD_CTRL_BPP_4	(2 << LCD_CTRL_BPP_BIT) /* 4 bpp */
+  #define LCD_CTRL_BPP_8	(3 << LCD_CTRL_BPP_BIT) /* 8 bpp */
+  #define LCD_CTRL_BPP_16	(4 << LCD_CTRL_BPP_BIT) /* 15/16 bpp */
+  #define LCD_CTRL_BPP_18_24	(5 << LCD_CTRL_BPP_BIT) /* 18/24/32 bpp */
+
+#define LCD_CTRL_BST_BIT	28  /* Burst Length Selection */
+#define LCD_CTRL_BST_MASK	(0x03 << LCD_CTRL_BST_BIT)
+  #define LCD_CTRL_BST_4	(0 << LCD_CTRL_BST_BIT) /* 4-word */
+  #define LCD_CTRL_BST_8	(1 << LCD_CTRL_BST_BIT) /* 8-word */
+  #define LCD_CTRL_BST_16	(2 << LCD_CTRL_BST_BIT) /* 16-word */
+#define LCD_CTRL_RGB565		(0 << 27) /* RGB565 mode */
+#define LCD_CTRL_RGB555		(1 << 27) /* RGB555 mode */
+#define LCD_CTRL_OFUP		(1 << 26) /* Output FIFO underrun protection enable */
+#define LCD_CTRL_FRC_BIT	24  /* STN FRC Algorithm Selection */
+#define LCD_CTRL_FRC_MASK	(0x03 << LCD_CTRL_FRC_BIT)
+  #define LCD_CTRL_FRC_16	(0 << LCD_CTRL_FRC_BIT) /* 16 grayscale */
+  #define LCD_CTRL_FRC_4	(1 << LCD_CTRL_FRC_BIT) /* 4 grayscale */
+  #define LCD_CTRL_FRC_2	(2 << LCD_CTRL_FRC_BIT) /* 2 grayscale */
+
+#define CPM_LPCDR	(CPM_BASE+0x64)
+#define CPM_CLKGR	(CPM_BASE+0x20)
+#define REG_CPM_LPCDR	REG32(CPM_LPCDR)
+#define REG_CPM_CLKGR	REG32(CPM_CLKGR)
+
+#define __cpm_start_tcu()	(REG_CPM_CLKGR &= ~CPM_CLKGR_TCU)
+#define __cpm_stop_lcd()	(REG_CPM_CLKGR |= CPM_CLKGR_LCD)
+#define __cpm_set_pixdiv(v) \
+	(REG_CPM_LPCDR = (REG_CPM_LPCDR & ~CPM_LPCDR_PIXDIV_MASK) | ((v) << (CPM_LPCDR_PIXDIV_BIT)))
+#define __cpm_set_ldiv(v) \
+	(REG_CPM_CPCCR = (REG_CPM_CPCCR & ~CPM_CPCCR_LDIV_MASK) | ((v) << (CPM_CPCCR_LDIV_BIT)))
+#define __cpm_start_lcd()	(REG_CPM_CLKGR &= ~CPM_CLKGR_LCD)
+
 #endif	/* !__ASSEMBLY__ */
 #endif	/* __JZ4740_H__ */
diff --git a/arch/mips/lib/board.c b/arch/mips/lib/board.c
index b14b33e..c2e64d9 100644
--- a/arch/mips/lib/board.c
+++ b/arch/mips/lib/board.c
@@ -172,6 +172,12 @@ void board_init_f(ulong bootflag)
 	addr &= ~(4096 - 1);
 	debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
 
+#ifdef CONFIG_LCD
+        /* reserve memory for LCD display (always full pages) */
+        addr = lcd_setmem (addr);
+        gd->fb_base = addr;
+#endif /* CONFIG_LCD */
+
 	/* Reserve memory for U-Boot code, data & bss
 	 * round down to next 16 kB limit
 	 */
diff --git a/common/lcd.c b/common/lcd.c
index b6be800..af1281a 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -263,6 +263,13 @@ static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
 						lcd_color_fg : lcd_color_bg;
 				bits <<= 1;
 			}
+#elif LCD_BPP == LCD_COLOR32
+                       uint *m = (uint *)d;
+                       for (c=0; c<32; ++c) {
+                               *m++ = (bits & 0x80) ?
+				       lcd_color_fg : lcd_color_bg;
+                               bits <<= 1;
+                       }
 #endif
 		}
 #if LCD_BPP == LCD_MONOCHROME
@@ -509,7 +516,7 @@ static inline ushort *configuration_get_cmap(void)
 	return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
 #elif defined(CONFIG_ATMEL_LCD)
 	return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
-#elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
+#elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) && !defined(CONFIG_VIDEO_GPM940B0)
 	return panel_info.cmap;
 #else
 #if defined(CONFIG_LCD_LOGO)
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ebb6da8..03625bc 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -50,6 +50,7 @@ COBJS-$(CONFIG_VIDEO_SED13806) += sed13806.o
 COBJS-$(CONFIG_VIDEO_SM501) += sm501.o
 COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o
 COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
+COBJS-$(CONFIG_VIDEO_GPM940B0) += nanonote_gpm940b0.o
 
 COBJS	:= $(sort $(COBJS-y))
 SRCS	:= $(COBJS:.o=.c)
diff --git a/drivers/video/nanonote_gpm940b0.c b/drivers/video/nanonote_gpm940b0.c
new file mode 100644
index 0000000..11efb72
--- /dev/null
+++ b/drivers/video/nanonote_gpm940b0.c
@@ -0,0 +1,400 @@
+/*
+ * JzRISC lcd controller
+ *
+ * Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <lcd.h>
+
+#include <asm/io.h>               /* virt_to_phys() */
+#include <asm/jz4740.h>
+
+#include "nanonote_gpm940b0.h"
+
+#define align2(n) (n)=((((n)+1)>>1)<<1)
+#define align4(n) (n)=((((n)+3)>>2)<<2)
+#define align8(n) (n)=((((n)+7)>>3)<<3)
+
+struct jzfb_info {
+	unsigned int cfg;	/* panel mode and pin usage etc. */
+	unsigned int w;
+	unsigned int h;
+	unsigned int bpp;	/* bit per pixel */
+	unsigned int fclk;	/* frame clk */
+	unsigned int hsw;	/* hsync width, in pclk */
+	unsigned int vsw;	/* vsync width, in line count */
+	unsigned int elw;	/* end of line, in pclk */
+	unsigned int blw;	/* begin of line, in pclk */
+	unsigned int efw;	/* end of frame, in line count */
+	unsigned int bfw;	/* begin of frame, in line count */
+};
+
+static struct jzfb_info jzfb = {
+	MODE_8BIT_SERIAL_TFT | PCLK_N | HSYNC_N | VSYNC_N,
+	320, 240, 32, 70, 1, 1, 273, 140, 1, 20
+};
+
+vidinfo_t panel_info = {
+	320, 240, LCD_BPP,
+};
+
+void *lcd_base;
+void *lcd_console_address;
+int lcd_line_length;
+int lcd_color_fg;
+int lcd_color_bg;
+short console_col;
+short console_row;
+
+static int jz_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
+{
+	u_long palette_mem_size;
+	struct jz_fb_info *fbi = &vid->jz_fb;
+	int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
+
+	fbi->screen = (u_long)lcdbase;
+	fbi->palette_size = 256;
+	palette_mem_size = fbi->palette_size * sizeof(u16);
+
+	debug("jz_lcd.c palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
+	/* locate palette and descs at end of page following fb */
+	fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
+
+	return 0;
+}
+
+static void jz_lcd_desc_init(vidinfo_t *vid)
+{
+	struct jz_fb_info * fbi;
+	fbi = &vid->jz_fb;
+	fbi->dmadesc_fblow = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
+	fbi->dmadesc_fbhigh = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
+	fbi->dmadesc_palette = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
+
+	#define BYTES_PER_PANEL	 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8)
+
+	/* populate descriptors */
+	fbi->dmadesc_fblow->fdadr = virt_to_phys(fbi->dmadesc_fblow);
+	fbi->dmadesc_fblow->fsadr = virt_to_phys((void *)(fbi->screen + BYTES_PER_PANEL));
+	fbi->dmadesc_fblow->fidr  = 0;
+	fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL / 4 ;
+
+	fbi->fdadr1 = virt_to_phys(fbi->dmadesc_fblow); /* only used in dual-panel mode */
+
+	fbi->dmadesc_fbhigh->fsadr = virt_to_phys((void *)fbi->screen);
+	fbi->dmadesc_fbhigh->fidr = 0;
+	fbi->dmadesc_fbhigh->ldcmd =  BYTES_PER_PANEL / 4; /* length in word */
+
+	fbi->dmadesc_palette->fsadr = virt_to_phys((void *)fbi->palette);
+	fbi->dmadesc_palette->fidr  = 0;
+	fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2)/4 | (1<<28);
+
+	if(NBITS(vid->vl_bpix) < 12) {
+		/* assume any mode with <12 bpp is palette driven */
+		fbi->dmadesc_palette->fdadr = virt_to_phys(fbi->dmadesc_fbhigh);
+		fbi->dmadesc_fbhigh->fdadr = virt_to_phys(fbi->dmadesc_palette);
+		/* flips back and forth between pal and fbhigh */
+		fbi->fdadr0 = virt_to_phys(fbi->dmadesc_palette);
+	} else {
+		/* palette shouldn't be loaded in true-color mode */
+		fbi->dmadesc_fbhigh->fdadr = virt_to_phys((void *)fbi->dmadesc_fbhigh);
+		fbi->fdadr0 = virt_to_phys(fbi->dmadesc_fbhigh); /* no pal just fbhigh */
+	}
+}
+
+static int  jz_lcd_hw_init(vidinfo_t *vid)
+{
+	struct jz_fb_info *fbi = &vid->jz_fb;
+	unsigned int val = 0;
+	unsigned int pclk;
+	unsigned int stnH;
+	int pll_div;
+
+	/* Setting Control register */
+	switch (jzfb.bpp) {
+	case 1:
+		val |= LCD_CTRL_BPP_1;
+		break;
+	case 2:
+		val |= LCD_CTRL_BPP_2;
+		break;
+	case 4:
+		val |= LCD_CTRL_BPP_4;
+		break;
+	case 8:
+		val |= LCD_CTRL_BPP_8;
+		break;
+	case 15:
+		val |= LCD_CTRL_RGB555;
+	case 16:
+		val |= LCD_CTRL_BPP_16;
+		break;
+	case 17 ... 32:
+		val |= LCD_CTRL_BPP_18_24;	/* target is 4bytes/pixel */
+		break;
+
+	default:
+		printf("jz_lcd.c The BPP %d is not supported\n", jzfb.bpp);
+		val |= LCD_CTRL_BPP_16;
+		break;
+	}
+
+	switch (jzfb.cfg & MODE_MASK) {
+	case MODE_STN_MONO_DUAL:
+	case MODE_STN_COLOR_DUAL:
+	case MODE_STN_MONO_SINGLE:
+	case MODE_STN_COLOR_SINGLE:
+		switch (jzfb.bpp) {
+		case 1:
+			/* val |= LCD_CTRL_PEDN; */
+		case 2:
+			val |= LCD_CTRL_FRC_2;
+			break;
+		case 4:
+			val |= LCD_CTRL_FRC_4;
+			break;
+		case 8:
+		default:
+			val |= LCD_CTRL_FRC_16;
+			break;
+		}
+		break;
+	}
+
+	val |= LCD_CTRL_BST_16;		/* Burst Length is 16WORD=64Byte */
+	val |= LCD_CTRL_OFUP;		/* OutFIFO underrun protect */
+
+	switch (jzfb.cfg & MODE_MASK) {
+	case MODE_STN_MONO_DUAL:
+	case MODE_STN_COLOR_DUAL:
+	case MODE_STN_MONO_SINGLE:
+	case MODE_STN_COLOR_SINGLE:
+		switch (jzfb.cfg & STN_DAT_PINMASK) {
+		case STN_DAT_PIN1:
+			/* Do not adjust the hori-param value. */
+			break;
+		case STN_DAT_PIN2:
+			align2(jzfb.hsw);
+			align2(jzfb.elw);
+			align2(jzfb.blw);
+			break;
+		case STN_DAT_PIN4:
+			align4(jzfb.hsw);
+			align4(jzfb.elw);
+			align4(jzfb.blw);
+			break;
+		case STN_DAT_PIN8:
+			align8(jzfb.hsw);
+			align8(jzfb.elw);
+			align8(jzfb.blw);
+			break;
+		}
+		break;
+	}
+
+	REG_LCD_CTRL = val;
+
+	switch (jzfb.cfg & MODE_MASK) {
+	case MODE_STN_MONO_DUAL:
+	case MODE_STN_COLOR_DUAL:
+	case MODE_STN_MONO_SINGLE:
+	case MODE_STN_COLOR_SINGLE:
+		if (((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL) ||
+		    ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL))
+			stnH = jzfb.h >> 1;
+		else
+			stnH = jzfb.h;
+
+		REG_LCD_VSYNC = (0 << 16) | jzfb.vsw;
+		REG_LCD_HSYNC = ((jzfb.blw+jzfb.w) << 16) | (jzfb.blw+jzfb.w+jzfb.hsw);
+
+		/* Screen setting */
+		REG_LCD_VAT = ((jzfb.blw + jzfb.w + jzfb.hsw + jzfb.elw) << 16) | (stnH + jzfb.vsw + jzfb.bfw + jzfb.efw);
+		REG_LCD_DAH = (jzfb.blw << 16) | (jzfb.blw + jzfb.w);
+		REG_LCD_DAV = (0 << 16) | (stnH);
+
+		/* AC BIAs signal */
+		REG_LCD_PS = (0 << 16) | (stnH+jzfb.vsw+jzfb.efw+jzfb.bfw);
+
+		break;
+
+	case MODE_TFT_GEN:
+	case MODE_TFT_SHARP:
+	case MODE_TFT_CASIO:
+	case MODE_TFT_SAMSUNG:
+	case MODE_8BIT_SERIAL_TFT:
+	case MODE_TFT_18BIT:
+		REG_LCD_VSYNC = (0 << 16) | jzfb.vsw;
+		REG_LCD_HSYNC = (0 << 16) | jzfb.hsw;
+		REG_LCD_DAV =((jzfb.vsw+jzfb.bfw) << 16) | (jzfb.vsw +jzfb.bfw+jzfb.h);
+		REG_LCD_DAH = ((jzfb.hsw + jzfb.blw) << 16) | (jzfb.hsw + jzfb.blw + jzfb.w );
+		REG_LCD_VAT = (((jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw)) << 16) \
+			| (jzfb.vsw + jzfb.bfw + jzfb.h + jzfb.efw);
+		break;
+	}
+
+	switch (jzfb.cfg & MODE_MASK) {
+	case MODE_TFT_SAMSUNG:
+	{
+		unsigned int total, tp_s, tp_e, ckv_s, ckv_e;
+		unsigned int rev_s, rev_e, inv_s, inv_e;
+
+		pclk = val * (jzfb.w + jzfb.hsw + jzfb.elw + jzfb.blw) *
+			(jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
+
+		total = jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw;
+		tp_s = jzfb.blw + jzfb.w + 1;
+		tp_e = tp_s + 1;
+		ckv_s = tp_s - pclk/(1000000000/4100);
+		ckv_e = tp_s + total;
+		rev_s = tp_s - 11;	/* -11.5 clk */
+		rev_e = rev_s + total;
+		inv_s = tp_s;
+		inv_e = inv_s + total;
+		REG_LCD_CLS = (tp_s << 16) | tp_e;
+		REG_LCD_PS = (ckv_s << 16) | ckv_e;
+		REG_LCD_SPL = (rev_s << 16) | rev_e;
+		REG_LCD_REV = (inv_s << 16) | inv_e;
+		jzfb.cfg |= STFT_REVHI | STFT_SPLHI;
+		break;
+	}
+	case MODE_TFT_SHARP:
+	{
+		unsigned int total, cls_s, cls_e, ps_s, ps_e;
+		unsigned int spl_s, spl_e, rev_s, rev_e;
+		total = jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw;
+		spl_s = 1;
+		spl_e = spl_s + 1;
+		cls_s = 0;
+		cls_e = total - 60;	/* > 4us (pclk = 80ns) */
+		ps_s = cls_s;
+		ps_e = cls_e;
+		rev_s = total - 40;	/* > 3us (pclk = 80ns) */
+		rev_e = rev_s + total;
+		jzfb.cfg |= STFT_PSHI; 
+		REG_LCD_SPL = (spl_s << 16) | spl_e;
+		REG_LCD_CLS = (cls_s << 16) | cls_e;
+		REG_LCD_PS = (ps_s << 16) | ps_e;
+		REG_LCD_REV = (rev_s << 16) | rev_e;
+		break;
+	}
+	case MODE_TFT_CASIO:
+		break;
+	}
+
+	/* Configure the LCD panel */
+	REG_LCD_CFG = jzfb.cfg;
+
+	/* Timing setting */
+	__cpm_stop_lcd();
+
+	val = jzfb.fclk; /* frame clk */
+	if ( (jzfb.cfg & MODE_MASK) != MODE_8BIT_SERIAL_TFT) {
+		pclk = val * (jzfb.w + jzfb.hsw + jzfb.elw + jzfb.blw) *
+			(jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
+	} else {
+		/* serial mode: Hsync period = 3*Width_Pixel */
+		pclk = val * (jzfb.w*3 + jzfb.hsw + jzfb.elw + jzfb.blw) *
+			(jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
+	}
+
+	if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_SINGLE) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL))
+		pclk = (pclk * 3);
+
+	if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_SINGLE) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_SINGLE) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
+		pclk = pclk >> ((jzfb.cfg & STN_DAT_PINMASK) >> 4);
+
+	if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
+		pclk >>= 1;
+
+	pll_div = (REG_CPM_CPCCR & CPM_CPCCR_PCS); /* clock source,0:pllout/2 1: pllout */
+	pll_div = pll_div ? 1 : 2;
+	val = (__cpm_get_pllout() / pll_div) / pclk;
+	val--;
+	if (val > 0x1ff) {
+		printf("CPM_LPCDR too large, set it to 0x1ff\n");
+		val = 0x1ff;
+	}
+	__cpm_set_pixdiv(val);
+
+	val = pclk * 3 ;	/* LCDClock > 2.5*Pixclock */
+	if (val > 150000000) {
+		printf("Warning: LCDClock=%d\n, LCDClock must less or equal to 150MHz.\n", val);
+		printf("Change LCDClock to 150MHz\n");
+		val = 150000000;
+	}
+	val = (__cpm_get_pllout() / pll_div) / val;
+	val--;
+	if (val > 0x1f) {
+		printf("CPM_CPCCR.LDIV too large, set it to 0x1f\n");
+		val = 0x1f;
+	}
+	__cpm_set_ldiv( val );
+	REG_CPM_CPCCR |= CPM_CPCCR_CE ; /* update divide */
+
+	__cpm_start_lcd();
+	udelay(1000);
+
+	REG_LCD_DA0 = fbi->fdadr0; /* frame descripter*/
+
+	if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
+	    ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
+		REG_LCD_DA1 = fbi->fdadr1; /* frame descripter*/
+
+	return 0;
+}
+
+void lcd_ctrl_init (void *lcdbase)
+{
+	__lcd_display_pin_init();
+	__lcd_display_on() ;
+
+	jz_lcd_init_mem(lcdbase, &panel_info);
+	jz_lcd_desc_init(&panel_info);
+	jz_lcd_hw_init(&panel_info);
+
+}
+
+/*
+ * Before enabled lcd controller, lcd registers should be configured correctly.
+ */
+void lcd_enable (void)
+{
+	REG_LCD_CTRL &= ~(1<<4); /* LCDCTRL.DIS */
+	REG_LCD_CTRL |= 1<<3;    /* LCDCTRL.ENA*/
+}
+
+void lcd_disable (void)
+{
+	REG_LCD_CTRL |= (1<<4);
+}
+
+void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
+{
+}
+
+void lcd_initcolregs (void)
+{
+}
diff --git a/drivers/video/nanonote_gpm940b0.h b/drivers/video/nanonote_gpm940b0.h
new file mode 100644
index 0000000..efe491e
--- /dev/null
+++ b/drivers/video/nanonote_gpm940b0.h
@@ -0,0 +1,135 @@
+/*
+ * JzRISC lcd controller
+ *
+ * Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __QI_LB60_GPM940B0_H__
+#define __QI_LB60_GPM940B0_H__
+
+struct lcd_desc{
+	unsigned int next_desc; /* LCDDAx */
+	unsigned int databuf;   /* LCDSAx */
+	unsigned int frame_id;  /* LCDFIDx */ 
+	unsigned int cmd;       /* LCDCMDx */
+};
+
+#define MODE_MASK		0x0f
+#define MODE_TFT_GEN		0x00
+#define MODE_TFT_SHARP		0x01
+#define MODE_TFT_CASIO		0x02
+#define MODE_TFT_SAMSUNG	0x03
+#define MODE_CCIR656_NONINT	0x04
+#define MODE_CCIR656_INT	0x05
+#define MODE_STN_COLOR_SINGLE	0x08
+#define MODE_STN_MONO_SINGLE	0x09
+#define MODE_STN_COLOR_DUAL	0x0a
+#define MODE_STN_MONO_DUAL	0x0b
+#define MODE_8BIT_SERIAL_TFT    0x0c
+
+#define MODE_TFT_18BIT          (1<<7)
+
+#define STN_DAT_PIN1	(0x00 << 4)
+#define STN_DAT_PIN2	(0x01 << 4)
+#define STN_DAT_PIN4	(0x02 << 4)
+#define STN_DAT_PIN8	(0x03 << 4)
+#define STN_DAT_PINMASK	STN_DAT_PIN8
+
+#define STFT_PSHI	(1 << 15)
+#define STFT_CLSHI	(1 << 14)
+#define STFT_SPLHI	(1 << 13)
+#define STFT_REVHI	(1 << 12)
+
+#define SYNC_MASTER	(0 << 16)
+#define SYNC_SLAVE	(1 << 16)
+
+#define DE_P		(0 << 9)
+#define DE_N		(1 << 9)
+
+#define PCLK_P		(0 << 10)
+#define PCLK_N		(1 << 10)
+
+#define HSYNC_P		(0 << 11)
+#define HSYNC_N		(1 << 11)
+
+#define VSYNC_P		(0 << 8)
+#define VSYNC_N		(1 << 8)
+
+#define DATA_NORMAL	(0 << 17)
+#define DATA_INVERSE	(1 << 17)
+
+
+/* Jz LCDFB supported I/O controls. */
+#define FBIOSETBACKLIGHT	0x4688
+#define FBIODISPON		0x4689
+#define FBIODISPOFF		0x468a
+#define FBIORESET		0x468b
+#define FBIOPRINT_REG		0x468c
+
+/*
+ * LCD panel specific definition
+ */
+#define MODE	(0xc9)		/* 8bit serial RGB */
+
+#define __spi_write_reg1(reg, val)		\
+do {						\
+	unsigned char no;			\
+	unsigned short value;			\
+	unsigned char a=reg;			\
+	unsigned char b=val;			\
+	__gpio_set_pin(SPEN);			\
+	__gpio_set_pin(SPCK);			\
+	__gpio_clear_pin(SPDA);			\
+	__gpio_clear_pin(SPEN);			\
+	value=((a<<8)|(b&0xFF));		\
+	for(no=0;no<16;no++)			\
+	{					\
+		__gpio_clear_pin(SPCK);		\
+		if((value&0x8000)==0x8000)	\
+			__gpio_set_pin(SPDA);	\
+		else				\
+			__gpio_clear_pin(SPDA);	\
+		__gpio_set_pin(SPCK);		\
+		value=(value<<1);		\
+	}					\
+	__gpio_set_pin(SPEN);			\
+} while (0)
+
+#define __lcd_display_pin_init()		\
+do {						\
+	__cpm_start_tcu();			\
+	__gpio_as_output(SPEN); /* use SPDA */	\
+	__gpio_as_output(SPCK); /* use SPCK */	\
+	__gpio_as_output(SPDA); /* use SPDA */	\
+} while (0)
+
+#define __lcd_display_on()			\
+do {						\
+	__spi_write_reg1(0x05, 0x1e);		\
+	__spi_write_reg1(0x05, 0x5e);		\
+	__spi_write_reg1(0x07, 0x8d);		\
+	__spi_write_reg1(0x13, 0x01);		\
+	__spi_write_reg1(0x05, 0x5f);		\
+} while (0)
+
+#define __lcd_display_off()			\
+do {						\
+	__spi_write_reg1(0x05, 0x5e);		\
+} while (0)
+
+#endif /* __QI_LB60_GPM940B0_H__ */
diff --git a/include/configs/qi_lb60.h b/include/configs/qi_lb60.h
index 52b370c..d3e78ad 100644
--- a/include/configs/qi_lb60.h
+++ b/include/configs/qi_lb60.h
@@ -32,6 +32,13 @@
  * Miscellaneous configurable options
  */
 #define CONFIG_NANONOTE
+
+#define CONFIG_LCD
+#define CONFIG_SYS_WHITE_ON_BLACK
+#define LCD_BPP			LCD_COLOR32
+#define CONFIG_VIDEO_GPM940B0
+
+
 #define CONFIG_JZ4740_MMC
 #define CONFIG_MMC      	1
 #define CONFIG_FAT      	1
diff --git a/include/lcd.h b/include/lcd.h
index 42070d7..6de5482 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -263,8 +263,44 @@ typedef struct vidinfo {
 
 void init_panel_info(vidinfo_t *vid);
 
-#else
+#elif defined(CONFIG_JZSOC)
+/*
+ * LCD controller stucture for JZSOC: JZ4740
+ */
+struct jz_fb_dma_descriptor {
+       u_long  fdadr;          /* Frame descriptor address register */
+       u_long  fsadr;          /* Frame source address register */
+       u_long  fidr;           /* Frame ID register */
+       u_long  ldcmd;          /* Command register */
+};
+
+/*
+ * Jz LCD info
+ */
+struct jz_fb_info {
+
+       u_long  fdadr0; /* physical address of frame/palette descriptor */
+       u_long  fdadr1; /* physical address of frame descriptor */
+
+       /* DMA descriptors */
+       struct  jz_fb_dma_descriptor *  dmadesc_fblow;
+       struct  jz_fb_dma_descriptor *  dmadesc_fbhigh;
+       struct  jz_fb_dma_descriptor *  dmadesc_palette;
+       u_long  screen;         /* address of frame buffer */
+       u_long  palette;        /* address of palette memory */
+       u_int   palette_size;
+};
+typedef struct vidinfo {
+       ushort  vl_col;         /* Number of columns (i.e. 640) */
+       ushort  vl_row;         /* Number of rows (i.e. 480) */
+       u_char  vl_bpix;        /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
+
+       struct jz_fb_info jz_fb;
+} vidinfo_t;
+
+extern vidinfo_t panel_info;
 
+#else
 typedef struct vidinfo {
 	ushort	vl_col;		/* Number of columns (i.e. 160) */
 	ushort	vl_row;		/* Number of rows (i.e. 100) */
@@ -318,6 +354,7 @@ void lcd_show_board_info(void);
 #define LCD_COLOR4	2
 #define LCD_COLOR8	3
 #define LCD_COLOR16	4
+#define LCD_COLOR32	5
 
 /*----------------------------------------------------------------------*/
 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
@@ -369,7 +406,7 @@ void lcd_show_board_info(void);
 # define CONSOLE_COLOR_GREY	14
 # define CONSOLE_COLOR_WHITE	15	/* Must remain last / highest	*/
 
-#else
+#elif LCD_BPP == LCD_COLOR16
 
 /*
  * 16bpp color definitions
@@ -377,6 +414,15 @@ void lcd_show_board_info(void);
 # define CONSOLE_COLOR_BLACK	0x0000
 # define CONSOLE_COLOR_WHITE	0xffff	/* Must remain last / highest	*/
 
+#elif LCD_BPP == LCD_COLOR32
+/*
+ * 18,24,32 bpp color definitions
+ */
+# define CONSOLE_COLOR_BLACK   0x00000000
+# define CONSOLE_COLOR_WHITE   0xffffffff /* Must remain last / highest */
+
+#else
+
 #endif /* color definitions */
 
 /************************************************************************/
@@ -406,7 +452,7 @@ void lcd_show_board_info(void);
 #if LCD_BPP == LCD_MONOCHROME
 # define COLOR_MASK(c)		((c)	  | (c) << 1 | (c) << 2 | (c) << 3 | \
 				 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
-#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
+#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || (LCD_BPP == LCD_COLOR32)
 # define COLOR_MASK(c)		(c)
 #else
 # error Unsupported LCD BPP.
-- 
1.7.9.5