ENGR00288418 Add EPDC splash screen for MX 6DL SabreSD and 6SL EVK

Add EPDC splash screen feature for MX6SL EVK, and MX6DL SABRESD board.

- Currently, splash screen consists of a simple black border
  around a white screen.  Done this way to save in memory footprint.

- EPDC splash screen is disabled by default in the config file for MX6DL_SABRESD
  and MX6SL_EVK.  If left enabled, the U-Boot image will not boot correctly
  (hang), since some additional content on the boot device (waveform file) is
  required for EPDC splash to work correctly.

Please refer to Linux Reference Manual for how to flash WAVEFORM file.

Signed-off-by: Robby Cai <R63905@freescale.com>
(cherry picked from commit b934091a04e11e96281b10cf63830851fd096fdd)

4 files changed, 577 insertions, 0 deletions

diff --git a/include/configs/mx6qsabresd.h b/include/configs/mx6qsabresd.h
index 860dd4a..c6314b7 100644
--- a/include/configs/mx6qsabresd.h
+++ b/include/configs/mx6qsabresd.h
@@ -33,4 +33,37 @@
 #define CONFIG_SF_DEFAULT_CS   (0|(IMX_GPIO_NR(4, 9)<<8))
 #endif
 
+/*#define CONFIG_SPLASH_SCREEN*/
+/*#define CONFIG_MXC_EPDC*/
+
+/*
+ * SPLASH SCREEN Configs
+ */
+#ifdef CONFIG_SPLASH_SCREEN
+	/*
+	 * Framebuffer and LCD
+	 */
+	#define CONFIG_CMD_BMP
+	#define CONFIG_LCD
+	#define CONFIG_FB_BASE				(CONFIG_SYS_TEXT_BASE + 0x300000)
+	#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#ifdef CONFIG_MXC_EPDC
+	#undef LCD_TEST_PATTERN
+	/* #define CONFIG_SPLASH_IS_IN_MMC			1 */
+	#define LCD_BPP					LCD_MONOCHROME
+	/* #define CONFIG_SPLASH_SCREEN_ALIGN		1 */
+
+	#define CONFIG_WORKING_BUF_ADDR			(CONFIG_SYS_TEXT_BASE + 0x100000)
+	#define CONFIG_WAVEFORM_BUF_ADDR		(CONFIG_SYS_TEXT_BASE + 0x200000)
+	#define CONFIG_WAVEFORM_FILE_OFFSET		0x600000
+	#define CONFIG_WAVEFORM_FILE_SIZE		0xF0A00
+	#define CONFIG_WAVEFORM_FILE_IN_MMC
+
+#ifdef CONFIG_SPLASH_IS_IN_MMC
+	#define CONFIG_SPLASH_IMG_OFFSET		0x4c000
+	#define CONFIG_SPLASH_IMG_SIZE			0x19000
+#endif
+#endif
+#endif /* CONFIG_SPLASH_SCREEN */
+
 #endif                         /* __MX6QSABRESD_CONFIG_H */
diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h
index f7a10e3..98d0246 100644
--- a/include/configs/mx6slevk.h
+++ b/include/configs/mx6slevk.h
@@ -234,4 +234,37 @@
 #define CONFIG_CMD_CACHE
 #endif
 
+/*#define CONFIG_SPLASH_SCREEN*/
+
+/*
+ * SPLASH SCREEN Configs
+ */
+#ifdef CONFIG_SPLASH_SCREEN
+	/*
+	 * Framebuffer and LCD
+	 */
+	#define CONFIG_CMD_BMP
+	#define CONFIG_MXC_EPDC				1
+	#define CONFIG_LCD
+	#define CONFIG_FB_BASE				(CONFIG_SYS_TEXT_BASE + 0x300000)
+	#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#ifdef CONFIG_MXC_EPDC
+	#undef LCD_TEST_PATTERN
+	/* #define CONFIG_SPLASH_IS_IN_MMC			1 */
+	#define LCD_BPP					LCD_MONOCHROME
+	/* #define CONFIG_SPLASH_SCREEN_ALIGN		1 */
+
+	#define CONFIG_WORKING_BUF_ADDR			(CONFIG_SYS_TEXT_BASE + 0x100000)
+	#define CONFIG_WAVEFORM_BUF_ADDR		(CONFIG_SYS_TEXT_BASE + 0x200000)
+	#define CONFIG_WAVEFORM_FILE_OFFSET		0x600000
+	#define CONFIG_WAVEFORM_FILE_SIZE		0xF0A00
+	#define CONFIG_WAVEFORM_FILE_IN_MMC
+
+#ifdef CONFIG_SPLASH_IS_IN_MMC
+	#define CONFIG_SPLASH_IMG_OFFSET		0x4c000
+	#define CONFIG_SPLASH_IMG_SIZE			0x19000
+#endif
+#endif
+#endif /* CONFIG_SPLASH_SCREEN */
+
 #endif				/* __CONFIG_H */
diff --git a/include/lcd.h b/include/lcd.h
index c6e7fc5..5744b88 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -253,6 +253,59 @@ typedef struct vidinfo {
 
 void init_panel_info(vidinfo_t *vid);
 
+#elif defined(CONFIG_MXC_EPDC)
+
+struct waveform_modes {
+	int mode_init;
+	int mode_du;
+	int mode_gc4;
+	int mode_gc8;
+	int mode_gc16;
+	int mode_gc32;
+};
+
+struct epdc_timing_params {
+    int vscan_holdoff;
+    int sdoed_width;
+    int sdoed_delay;
+    int sdoez_width;
+    int sdoez_delay;
+    int gdclk_hp_offs;
+    int gdsp_offs;
+    int gdoe_offs;
+    int gdclk_offs;
+    int num_ce;
+};
+
+struct epdc_data_struct {
+	/* EPDC buffer pointers */
+	u_long working_buf_addr;
+	u_long waveform_buf_addr;
+
+	/* Waveform mode definitions */
+	struct waveform_modes wv_modes;
+	struct epdc_timing_params epdc_timings;
+};
+
+typedef struct vidinfo {
+	u_long vl_refresh;      /* Refresh Rate Hz */
+	u_long vl_row;          /* resolution in x */
+	u_long vl_col;          /* resolution in y */
+	u_long vl_pixclock;     /* pixel clock in picoseconds */
+	u_long vl_left_margin;  /* Horizontal back porch */
+	u_long vl_right_margin; /* Horizontal front porch */
+	u_long vl_upper_margin; /* Vertical back porch */
+	u_long vl_lower_margin; /* Vertical front porch */
+	u_long vl_hsync;        /* Horizontal sync pulse length */
+	u_long vl_vsync;        /* Vertical sync pulse length */
+	u_long vl_sync;         /* Polarity on data enable */
+	u_long vl_mode;         /* Video Mode */
+	u_long vl_flag;
+	u_char  vl_bpix;
+	ushort  *cmap;
+	struct epdc_data_struct epdc_data;
+} vidinfo_t;
+
 #else
 
 typedef struct vidinfo {
diff --git a/include/mxc_epdc_fb.h b/include/mxc_epdc_fb.h
new file mode 100644
index 0000000..afe7b46
--- /dev/null
+++ b/include/mxc_epdc_fb.h
@@ -0,0 +1,458 @@
+/*
+ * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
+ *
+ * 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 __EPDC_REGS_INCLUDED__
+#define __EPDC_REGS_INCLUDED__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <asm/arch/imx-regs.h>
+
+/*************************************
+ * Register addresses
+ *************************************/
+#define EPDC_BASE			(EPDC_BASE_ADDR)
+
+#define EPDC_CTRL			(0x000)
+#define EPDC_CTRL_SET			(0x004)
+#define EPDC_CTRL_CLR			(0x008)
+#define EPDC_CTRL_TOG			(0x00c)
+#define EPDC_WVADDR			(0x020)
+#define EPDC_WB_ADDR			(0x030)
+#define EPDC_RES			(0x040)
+#define EPDC_FORMAT			(0x050)
+#define EPDC_FORMAT_SET			(0x054)
+#define EPDC_FORMAT_CLR			(0x058)
+#define EPDC_FORMAT_TOG			(0x05c)
+#define EPDC_FIFOCTRL			(0x0a0)
+#define EPDC_FIFOCTRL_SET		(0x0a4)
+#define EPDC_FIFOCTRL_CLR		(0x0a8)
+#define EPDC_FIFOCTRL_TOG		(0x0ac)
+#define EPDC_UPD_ADDR			(0x100)
+#define EPDC_UPD_STRIDE			(0x110)
+#define EPDC_UPD_CORD			(0x120)
+#define EPDC_UPD_SIZE			(0x140)
+#define EPDC_UPD_CTRL			(0x160)
+#define EPDC_UPD_FIXED			(0x180)
+#define EPDC_TEMP			(0x1a0)
+#define EPDC_AUTOWV_LUT			(0x1C0)
+#define EPDC_TCE_CTRL			(0x200)
+#define EPDC_TCE_SDCFG			(0x220)
+#define EPDC_TCE_GDCFG			(0x240)
+#define EPDC_TCE_HSCAN1			(0x260)
+#define EPDC_TCE_HSCAN2			(0x280)
+#define EPDC_TCE_VSCAN			(0x2a0)
+#define EPDC_TCE_OE			(0x2c0)
+#define EPDC_TCE_POLARITY		(0x2e0)
+#define EPDC_TCE_TIMING1		(0x300)
+#define EPDC_TCE_TIMING2		(0x310)
+#define EPDC_TCE_TIMING3		(0x320)
+#define EPDC_PIGEON_CTRL0		(0x380)
+#define EPDC_PIGEON_CTRL1		(0x390)
+#define EPDC_IRQ_MASK1			(0x3C0)
+#define EPDC_IRQ_MASK1_SET		(0x3C4)
+#define EPDC_IRQ_MASK1_CLR		(0x3C8)
+#define EPDC_IRQ_MASK1_TOG		(0x3CC)
+#define EPDC_IRQ_MASK2			(0x3D0)
+#define EPDC_IRQ_MASK2_SET		(0x3D4)
+#define EPDC_IRQ_MASK2_CLR		(0x3D8)
+#define EPDC_IRQ_MASK2_TOG		(0x3DC)
+#define EPDC_IRQ1			(0x3E0)
+#define EPDC_IRQ1_SET			(0x3E4)
+#define EPDC_IRQ1_CLR			(0x3E8)
+#define EPDC_IRQ1_TOG			(0x3EC)
+#define EPDC_IRQ2			(0x3F0)
+#define EPDC_IRQ2_SET			(0x3F4)
+#define EPDC_IRQ2_CLR			(0x3F8)
+#define EPDC_IRQ2_TOG			(0x3FC)
+#define EPDC_IRQ_MASK			(0x400)
+#define EPDC_IRQ_MASK_SET		(0x404)
+#define EPDC_IRQ_MASK_CLR		(0x408)
+#define EPDC_IRQ_MASK_TOG		(0x40c)
+#define EPDC_IRQ			(0x420)
+#define EPDC_IRQ_SET			(0x424)
+#define EPDC_IRQ_CLR			(0x428)
+#define EPDC_IRQ_TOG			(0x42c)
+#define EPDC_STATUS_LUTS		(0x440)
+#define EPDC_STATUS_LUTS_SET		(0x444)
+#define EPDC_STATUS_LUTS_CLR		(0x448)
+#define EPDC_STATUS_LUTS_TOG		(0x44c)
+#define EPDC_STATUS_LUTS2		(0x450)
+#define EPDC_STATUS_LUTS2_SET		(0x454)
+#define EPDC_STATUS_LUTS2_CLR		(0x458)
+#define EPDC_STATUS_LUTS2_TOG		(0x45C)
+#define EPDC_STATUS_NEXTLUT		(0x460)
+#define EPDC_STATUS_COL			(0x480)
+#define EPDC_STATUS_COL2		(0x490)
+#define EPDC_STATUS			(0x4a0)
+#define EPDC_STATUS_SET			(0x4a4)
+#define EPDC_STATUS_CLR			(0x4a8)
+#define EPDC_STATUS_TOG			(0x4ac)
+#define EPDC_UPD_COL_CORD		(0x4C0)
+#define EPDC_UPD_COL_SIZE		(0x4E0)
+#define EPDC_DEBUG			(0x500)
+#define EPDC_DEBUG_LUT			(0x530)
+#define EPDC_HIST1_PARAM		(0x600)
+#define EPDC_HIST2_PARAM		(0x610)
+#define EPDC_HIST4_PARAM		(0x620)
+#define EPDC_HIST8_PARAM0		(0x630)
+#define EPDC_HIST8_PARAM1		(0x640)
+#define EPDC_HIST16_PARAM0		(0x650)
+#define EPDC_HIST16_PARAM1		(0x660)
+#define EPDC_HIST16_PARAM2		(0x670)
+#define EPDC_HIST16_PARAM3		(0x680)
+#define EPDC_GPIO			(0x700)
+#define EPDC_VERSION			(0x7f0)
+#define EPDC_PIGEON_0_0			(0x800)
+#define EPDC_PIGEON_0_1			(0x810)
+#define EPDC_PIGEON_0_2			(0x820)
+#define EPDC_PIGEON_1_0			(0x840)
+#define EPDC_PIGEON_1_1			(0x850)
+#define EPDC_PIGEON_1_2			(0x860)
+#define EPDC_PIGEON_2_0			(0x880)
+#define EPDC_PIGEON_2_1			(0x890)
+#define EPDC_PIGEON_2_2			(0x8A0)
+#define EPDC_PIGEON_3_0			(0x8C0)
+#define EPDC_PIGEON_3_1			(0x8D0)
+#define EPDC_PIGEON_3_2			(0x8E0)
+#define EPDC_PIGEON_4_0			(0x900)
+#define EPDC_PIGEON_4_1			(0x910)
+#define EPDC_PIGEON_4_2			(0x920)
+#define EPDC_PIGEON_5_0			(0x940)
+#define EPDC_PIGEON_5_1			(0x950)
+#define EPDC_PIGEON_5_2			(0x960)
+#define EPDC_PIGEON_6_0			(0x980)
+#define EPDC_PIGEON_6_1			(0x990)
+#define EPDC_PIGEON_6_2			(0x9A0)
+#define EPDC_PIGEON_7_0			(0x9C0)
+#define EPDC_PIGEON_7_1			(0x9D0)
+#define EPDC_PIGEON_7_2			(0x9E0)
+#define EPDC_PIGEON_8_0			(0xA00)
+#define EPDC_PIGEON_8_1			(0xA10)
+#define EPDC_PIGEON_8_2			(0xA20)
+#define EPDC_PIGEON_9_0			(0xA40)
+#define EPDC_PIGEON_9_1			(0xA50)
+#define EPDC_PIGEON_9_2			(0xA60)
+#define EPDC_PIGEON_10_0		(0xA80)
+#define EPDC_PIGEON_10_1		(0xA90)
+#define EPDC_PIGEON_10_2		(0xAA0)
+#define EPDC_PIGEON_11_0		(0xAC0)
+#define EPDC_PIGEON_11_1		(0xAD0)
+#define EPDC_PIGEON_11_2		(0xAE0)
+#define EPDC_PIGEON_12_0		(0xB00)
+#define EPDC_PIGEON_12_1		(0xB10)
+#define EPDC_PIGEON_12_2		(0xB20)
+#define EPDC_PIGEON_13_0		(0xB40)
+#define EPDC_PIGEON_13_1		(0xB50)
+#define EPDC_PIGEON_13_2		(0xB60)
+#define EPDC_PIGEON_14_0		(0xB80)
+#define EPDC_PIGEON_14_1		(0xB90)
+#define EPDC_PIGEON_14_2		(0xBA0)
+#define EPDC_PIGEON_15_0		(0xBC0)
+#define EPDC_PIGEON_15_1		(0xBD0)
+#define EPDC_PIGEON_15_2		(0xBE0)
+#define EPDC_WB_ADDR_TCE		(0xC10)
+
+#define REG_RD(base, reg) \
+	(*(volatile unsigned int *)((base) + (reg)))
+#define REG_WR(base, reg, value) \
+	((*(volatile unsigned int *)((base) + (reg))) = (value))
+#define REG_SET(base, reg, value) \
+	((*(volatile unsigned int *)((base) + (reg ## _SET))) = (value))
+#define REG_CLR(base, reg, value) \
+	((*(volatile unsigned int *)((base) + (reg ## _CLR))) = (value))
+#define REG_TOG(base, reg, value) \
+	((*(volatile unsigned int *)((base) + (reg ## _TOG))) = (value))
+/*
+ * Register field definitions
+ */
+
+enum {
+	/* EPDC_CTRL field values */
+	EPDC_CTRL_SFTRST = 0x80000000,
+	EPDC_CTRL_CLKGATE = 0x40000000,
+	EPDC_CTRL_SRAM_POWERDOWN = 0x100,
+	EPDC_CTRL_UPD_DATA_SWIZZLE_MASK = 0xc0,
+	EPDC_CTRL_UPD_DATA_SWIZZLE_NO_SWAP = 0,
+	EPDC_CTRL_UPD_DATA_SWIZZLE_ALL_BYTES_SWAP = 0x40,
+	EPDC_CTRL_UPD_DATA_SWIZZLE_HWD_SWAP = 0x80,
+	EPDC_CTRL_UPD_DATA_SWIZZLE_HWD_BYTE_SWAP = 0xc0,
+	EPDC_CTRL_LUT_DATA_SWIZZLE_MASK = 0x30,
+	EPDC_CTRL_LUT_DATA_SWIZZLE_NO_SWAP = 0,
+	EPDC_CTRL_LUT_DATA_SWIZZLE_ALL_BYTES_SWAP = 0x10,
+	EPDC_CTRL_LUT_DATA_SWIZZLE_HWD_SWAP = 0x20,
+	EPDC_CTRL_LUT_DATA_SWIZZLE_HWD_BYTE_SWAP = 0x30,
+	EPDC_CTRL_BURST_LEN_8_8 = 0x1,
+	EPDC_CTRL_BURST_LEN_8_16 = 0,
+
+	/* EPDC_RES field values */
+	EPDC_RES_VERTICAL_MASK = 0x1fff0000,
+	EPDC_RES_VERTICAL_OFFSET = 16,
+	EPDC_RES_HORIZONTAL_MASK = 0x1fff,
+	EPDC_RES_HORIZONTAL_OFFSET = 0,
+
+	/* EPDC_FORMAT field values */
+	EPDC_FORMAT_BUF_PIXEL_SCALE_ROUND = 0x1000000,
+	EPDC_FORMAT_DEFAULT_TFT_PIXEL_MASK = 0xff0000,
+	EPDC_FORMAT_DEFAULT_TFT_PIXEL_OFFSET = 16,
+	EPDC_FORMAT_BUF_PIXEL_FORMAT_P2N = 0x200,
+	EPDC_FORMAT_BUF_PIXEL_FORMAT_P3N = 0x300,
+	EPDC_FORMAT_BUF_PIXEL_FORMAT_P4N = 0x400,
+	EPDC_FORMAT_BUF_PIXEL_FORMAT_P5N = 0x500,
+	EPDC_FORMAT_TFT_PIXEL_FORMAT_2BIT = 0x0,
+	EPDC_FORMAT_TFT_PIXEL_FORMAT_2BIT_VCOM = 0x1,
+	EPDC_FORMAT_TFT_PIXEL_FORMAT_4BIT = 0x2,
+	EPDC_FORMAT_TFT_PIXEL_FORMAT_4BIT_VCOM = 0x3,
+
+	/* EPDC_FIFOCTRL field values */
+	EPDC_FIFOCTRL_ENABLE_PRIORITY = 0x80000000,
+	EPDC_FIFOCTRL_FIFO_INIT_LEVEL_MASK = 0xff0000,
+	EPDC_FIFOCTRL_FIFO_INIT_LEVEL_OFFSET = 16,
+	EPDC_FIFOCTRL_FIFO_H_LEVEL_MASK = 0xff00,
+	EPDC_FIFOCTRL_FIFO_H_LEVEL_OFFSET = 8,
+	EPDC_FIFOCTRL_FIFO_L_LEVEL_MASK = 0xff,
+	EPDC_FIFOCTRL_FIFO_L_LEVEL_OFFSET = 0,
+
+	/* EPDC_UPD_CORD field values */
+	EPDC_UPD_CORD_YCORD_MASK = 0x1fff0000,
+	EPDC_UPD_CORD_YCORD_OFFSET = 16,
+	EPDC_UPD_CORD_XCORD_MASK = 0x1fff,
+	EPDC_UPD_CORD_XCORD_OFFSET = 0,
+
+	/* EPDC_UPD_SIZE field values */
+	EPDC_UPD_SIZE_HEIGHT_MASK = 0x1fff0000,
+	EPDC_UPD_SIZE_HEIGHT_OFFSET = 16,
+	EPDC_UPD_SIZE_WIDTH_MASK = 0x1fff,
+	EPDC_UPD_SIZE_WIDTH_OFFSET = 0,
+
+	/* EPDC_UPD_CTRL field values */
+	EPDC_UPD_CTRL_USE_FIXED = 0x80000000,
+	EPDC_UPD_CTRL_LUT_SEL_MASK = 0xf0000,
+	EPDC_UPD_CTRL_LUT_SEL_OFFSET = 16,
+	EPDC_UPD_CTRL_WAVEFORM_MODE_MASK = 0xff00,
+	EPDC_UPD_CTRL_WAVEFORM_MODE_OFFSET = 8,
+	EPDC_UPD_CTRL_AUTOWV_PAUSE = 0x8,
+	EPDC_UPD_CTRL_AUTOWV = 0x4,
+	EPDC_UPD_CTRL_DRY_RUN = 0x2,
+	EPDC_UPD_CTRL_UPDATE_MODE_FULL = 0x1,
+
+	/* EPDC_UPD_FIXED field values */
+	EPDC_UPD_FIXED_FIXNP_EN = 0x80000000,
+	EPDC_UPD_FIXED_FIXCP_EN = 0x40000000,
+	EPDC_UPD_FIXED_FIXNP_MASK = 0xff00,
+	EPDC_UPD_FIXED_FIXNP_OFFSET = 8,
+	EPDC_UPD_FIXED_FIXCP_MASK = 0xff,
+	EPDC_UPD_FIXED_FIXCP_OFFSET = 0,
+
+	/* EPDC_AUTOWV_LUT field values */
+	EPDC_AUTOWV_LUT_DATA_MASK = 0xFF0000,
+	EPDC_AUTOWV_LUT_DATA_OFFSET = 16,
+	EPDC_AUTOWV_LUT_ADDR_MASK = 0xFF,
+	EPDC_AUTOWV_LUT_ADDR_OFFSET = 0,
+
+	/* EPDC_TCE_CTRL field values */
+	EPDC_TCE_CTRL_VSCAN_HOLDOFF_MASK = 0x1ff0000,
+	EPDC_TCE_CTRL_VSCAN_HOLDOFF_OFFSET = 16,
+	EPDC_TCE_CTRL_VCOM_VAL_MASK = 0xc00,
+	EPDC_TCE_CTRL_VCOM_VAL_OFFSET = 10,
+	EPDC_TCE_CTRL_VCOM_MODE_AUTO = 0x200,
+	EPDC_TCE_CTRL_VCOM_MODE_MANUAL = 0x000,
+	EPDC_TCE_CTRL_DDR_MODE_ENABLE = 0x100,
+	EPDC_TCE_CTRL_LVDS_MODE_CE_ENABLE = 0x80,
+	EPDC_TCE_CTRL_LVDS_MODE_ENABLE = 0x40,
+	EPDC_TCE_CTRL_SCAN_DIR_1_UP = 0x20,
+	EPDC_TCE_CTRL_SCAN_DIR_0_UP = 0x10,
+	EPDC_TCE_CTRL_DUAL_SCAN_ENABLE = 0x8,
+	EPDC_TCE_CTRL_SDDO_WIDTH_16BIT = 0x4,
+	EPDC_TCE_CTRL_PIXELS_PER_SDCLK_2 = 1,
+	EPDC_TCE_CTRL_PIXELS_PER_SDCLK_4 = 2,
+	EPDC_TCE_CTRL_PIXELS_PER_SDCLK_8 = 3,
+
+	/* EPDC_TCE_SDCFG field values */
+	EPDC_TCE_SDCFG_SDCLK_HOLD = 0x200000,
+	EPDC_TCE_SDCFG_SDSHR = 0x100000,
+	EPDC_TCE_SDCFG_NUM_CE_MASK = 0xf0000,
+	EPDC_TCE_SDCFG_NUM_CE_OFFSET = 16,
+	EPDC_TCE_SDCFG_SDDO_REFORMAT_STANDARD = 0,
+	EPDC_TCE_SDCFG_SDDO_REFORMAT_FLIP_PIXELS = 0x4000,
+	EPDC_TCE_SDCFG_SDDO_INVERT_ENABLE = 0x2000,
+	EPDC_TCE_SDCFG_PIXELS_PER_CE_MASK = 0x1fff,
+	EPDC_TCE_SDCFG_PIXELS_PER_CE_OFFSET = 0,
+
+	/* EPDC_TCE_GDCFG field values */
+	EPDC_TCE_SDCFG_GDRL = 0x10,
+	EPDC_TCE_SDCFG_GDOE_MODE_DELAYED_GDCLK = 0x2,
+	EPDC_TCE_SDCFG_GDSP_MODE_FRAME_SYNC = 0x1,
+	EPDC_TCE_SDCFG_GDSP_MODE_ONE_LINE = 0x0,
+
+	/* EPDC_TCE_HSCAN1 field values */
+	EPDC_TCE_HSCAN1_LINE_SYNC_WIDTH_MASK = 0xfff0000,
+	EPDC_TCE_HSCAN1_LINE_SYNC_WIDTH_OFFSET = 16,
+	EPDC_TCE_HSCAN1_LINE_SYNC_MASK = 0xfff,
+	EPDC_TCE_HSCAN1_LINE_SYNC_OFFSET = 0,
+
+	/* EPDC_TCE_HSCAN2 field values */
+	EPDC_TCE_HSCAN2_LINE_END_MASK = 0xfff0000,
+	EPDC_TCE_HSCAN2_LINE_END_OFFSET = 16,
+	EPDC_TCE_HSCAN2_LINE_BEGIN_MASK = 0xfff,
+	EPDC_TCE_HSCAN2_LINE_BEGIN_OFFSET = 0,
+
+	/* EPDC_TCE_VSCAN field values */
+	EPDC_TCE_VSCAN_FRAME_END_MASK = 0xff0000,
+	EPDC_TCE_VSCAN_FRAME_END_OFFSET = 16,
+	EPDC_TCE_VSCAN_FRAME_BEGIN_MASK = 0xff00,
+	EPDC_TCE_VSCAN_FRAME_BEGIN_OFFSET = 8,
+	EPDC_TCE_VSCAN_FRAME_SYNC_MASK = 0xff,
+	EPDC_TCE_VSCAN_FRAME_SYNC_OFFSET = 0,
+
+	/* EPDC_TCE_OE field values */
+	EPDC_TCE_OE_SDOED_WIDTH_MASK = 0xff000000,
+	EPDC_TCE_OE_SDOED_WIDTH_OFFSET = 24,
+	EPDC_TCE_OE_SDOED_DLY_MASK = 0xff0000,
+	EPDC_TCE_OE_SDOED_DLY_OFFSET = 16,
+	EPDC_TCE_OE_SDOEZ_WIDTH_MASK = 0xff00,
+	EPDC_TCE_OE_SDOEZ_WIDTH_OFFSET = 8,
+	EPDC_TCE_OE_SDOEZ_DLY_MASK = 0xff,
+	EPDC_TCE_OE_SDOEZ_DLY_OFFSET = 0,
+
+	/* EPDC_TCE_POLARITY field values */
+	EPDC_TCE_POLARITY_GDSP_POL_ACTIVE_HIGH = 0x10,
+	EPDC_TCE_POLARITY_GDOE_POL_ACTIVE_HIGH = 0x8,
+	EPDC_TCE_POLARITY_SDOE_POL_ACTIVE_HIGH = 0x4,
+	EPDC_TCE_POLARITY_SDLE_POL_ACTIVE_HIGH = 0x2,
+	EPDC_TCE_POLARITY_SDCE_POL_ACTIVE_HIGH = 0x1,
+
+	/* EPDC_TCE_TIMING1 field values */
+	EPDC_TCE_TIMING1_SDLE_SHIFT_NONE = 0x00,
+	EPDC_TCE_TIMING1_SDLE_SHIFT_1 = 0x10,
+	EPDC_TCE_TIMING1_SDLE_SHIFT_2 = 0x20,
+	EPDC_TCE_TIMING1_SDLE_SHIFT_3 = 0x30,
+	EPDC_TCE_TIMING1_SDCLK_INVERT = 0x8,
+	EPDC_TCE_TIMING1_SDCLK_SHIFT_NONE = 0,
+	EPDC_TCE_TIMING1_SDCLK_SHIFT_1CYCLE = 1,
+	EPDC_TCE_TIMING1_SDCLK_SHIFT_2CYCLES = 2,
+	EPDC_TCE_TIMING1_SDCLK_SHIFT_3CYCLES = 3,
+
+	/* EPDC_TCE_TIMING2 field values */
+	EPDC_TCE_TIMING2_GDCLK_HP_MASK = 0xffff0000,
+	EPDC_TCE_TIMING2_GDCLK_HP_OFFSET = 16,
+	EPDC_TCE_TIMING2_GDSP_OFFSET_MASK = 0xffff,
+	EPDC_TCE_TIMING2_GDSP_OFFSET_OFFSET = 0,
+
+	/* EPDC_TCE_TIMING3 field values */
+	EPDC_TCE_TIMING3_GDOE_OFFSET_MASK = 0xffff0000,
+	EPDC_TCE_TIMING3_GDOE_OFFSET_OFFSET = 16,
+	EPDC_TCE_TIMING3_GDCLK_OFFSET_MASK = 0xffff,
+	EPDC_TCE_TIMING3_GDCLK_OFFSET_OFFSET = 0,
+
+	/* EPDC_IRQ_MASK/EPDC_IRQ field values */
+	EPDC_IRQ_WB_CMPLT_IRQ = 0x10000,
+	EPDC_IRQ_LUT_COL_IRQ = 0x20000,
+	EPDC_IRQ_TCE_UNDERRUN_IRQ = 0x40000,
+	EPDC_IRQ_FRAME_END_IRQ = 0x80000,
+	EPDC_IRQ_BUS_ERROR_IRQ = 0x100000,
+	EPDC_IRQ_TCE_IDLE_IRQ = 0x200000,
+	EPDC_IRQ_UPD_DONE_IRQ = 0x400000,
+	EPDC_IRQ_PWR_IRQ = 0x800000,
+
+	/* EPDC_STATUS_NEXTLUT field values */
+	EPDC_STATUS_NEXTLUT_NEXT_LUT_VALID = 0x100,
+	EPDC_STATUS_NEXTLUT_NEXT_LUT_MASK = 0x3F,
+	EPDC_STATUS_NEXTLUT_NEXT_LUT_OFFSET = 0,
+
+	/* EPDC_STATUS field values */
+	EPDC_STATUS_HISTOGRAM_CP_MASK = 0x1F0000,
+	EPDC_STATUS_HISTOGRAM_CP_OFFSET = 16,
+	EPDC_STATUS_HISTOGRAM_NP_MASK = 0x1F00,
+	EPDC_STATUS_HISTOGRAM_NP_OFFSET = 8,
+	EPDC_STATUS_UPD_VOID = 0x8,
+	EPDC_STATUS_LUTS_UNDERRUN = 0x4,
+	EPDC_STATUS_LUTS_BUSY = 0x2,
+	EPDC_STATUS_WB_BUSY = 0x1,
+
+	/* EPDC_UPD_COL_CORD field values */
+	EPDC_UPD_COL_CORD_YCORD_MASK = 0x1FFF0000,
+	EPDC_UPD_COL_CORD_YCORD_OFFSET = 16,
+	EPDC_UPD_COL_CORD_XCORD_MASK = 0x1FFF,
+	EPDC_UPD_COL_CORD_XCORD_OFFSET = 0,
+
+	/* EPDC_UPD_COL_SIZE field values */
+	EPDC_UPD_COL_SIZE_HEIGHT_MASK = 0x1FFF0000,
+	EPDC_UPD_COL_SIZE_HEIGHT_OFFSET = 16,
+	EPDC_UPD_COL_SIZE_WIDTH_MASK = 0x1FFF,
+	EPDC_UPD_COL_SIZE_WIDTH_OFFSET = 0,
+
+	/* EPDC_DEBUG field values */
+	EPDC_DEBUG_UNDERRUN_RECOVER = 0x2,
+	EPDC_DEBUG_COLLISION_OFF = 0x1,
+
+/* EPDC_HISTx_PARAM field values */
+	EPDC_HIST_PARAM_VALUE0_MASK = 0x1F,
+	EPDC_HIST_PARAM_VALUE0_OFFSET = 0,
+	EPDC_HIST_PARAM_VALUE1_MASK = 0x1F00,
+	EPDC_HIST_PARAM_VALUE1_OFFSET = 8,
+	EPDC_HIST_PARAM_VALUE2_MASK = 0x1F0000,
+	EPDC_HIST_PARAM_VALUE2_OFFSET = 16,
+	EPDC_HIST_PARAM_VALUE3_MASK = 0x1F000000,
+	EPDC_HIST_PARAM_VALUE3_OFFSET = 24,
+	EPDC_HIST_PARAM_VALUE4_MASK = 0x1F,
+	EPDC_HIST_PARAM_VALUE4_OFFSET = 0,
+	EPDC_HIST_PARAM_VALUE5_MASK = 0x1F00,
+	EPDC_HIST_PARAM_VALUE5_OFFSET = 8,
+	EPDC_HIST_PARAM_VALUE6_MASK = 0x1F0000,
+	EPDC_HIST_PARAM_VALUE6_OFFSET = 16,
+	EPDC_HIST_PARAM_VALUE7_MASK = 0x1F000000,
+	EPDC_HIST_PARAM_VALUE7_OFFSET = 24,
+	EPDC_HIST_PARAM_VALUE8_MASK = 0x1F,
+	EPDC_HIST_PARAM_VALUE8_OFFSET = 0,
+	EPDC_HIST_PARAM_VALUE9_MASK = 0x1F00,
+	EPDC_HIST_PARAM_VALUE9_OFFSET = 8,
+	EPDC_HIST_PARAM_VALUE10_MASK = 0x1F0000,
+	EPDC_HIST_PARAM_VALUE10_OFFSET = 16,
+	EPDC_HIST_PARAM_VALUE11_MASK = 0x1F000000,
+	EPDC_HIST_PARAM_VALUE11_OFFSET = 24,
+	EPDC_HIST_PARAM_VALUE12_MASK = 0x1F,
+	EPDC_HIST_PARAM_VALUE12_OFFSET = 0,
+	EPDC_HIST_PARAM_VALUE13_MASK = 0x1F00,
+	EPDC_HIST_PARAM_VALUE13_OFFSET = 8,
+	EPDC_HIST_PARAM_VALUE14_MASK = 0x1F0000,
+	EPDC_HIST_PARAM_VALUE14_OFFSET = 16,
+	EPDC_HIST_PARAM_VALUE15_MASK = 0x1F000000,
+	EPDC_HIST_PARAM_VALUE15_OFFSET = 24,
+
+	/* EPDC_GPIO field values */
+	EPDC_GPIO_PWRCOM = 0x40,
+	EPDC_GPIO_PWRCTRL_MASK = 0x3c,
+	EPDC_GPIO_PWRCTRL_OFFSET = 2,
+	EPDC_GPIO_BDR_MASK = 0x3,
+	EPDC_GPIO_BDR_OFFSET = 0,
+
+	/* EPDC_VERSION field values */
+	EPDC_VERSION_MAJOR_MASK = 0xFF000000,
+	EPDC_VERSION_MAJOR_OFFSET = 24,
+	EPDC_VERSION_MINOR_MASK = 0xFF0000,
+	EPDC_VERSION_MINOR_OFFSET = 16,
+	EPDC_VERSION_STEP_MASK = 0xFFFF,
+	EPDC_VERSION_STEP_OFFSET = 0,
+};
+
+int setup_waveform_file(void);
+void epdc_power_on(void);
+void epdc_power_off(void);
+
+#endif