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authorWang Qiang <rurality.linux@gmail.com>2010-03-10 15:21:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 15:52:34 -0800
commit8661970875d7d27e4de233d357327fffdb4a5e3d (patch)
tree7b8cb8c11bc5e66da62cccf8fd77201415183353 /arch/arm/mach-w90x900
parent91d4e0a4c889e3e8078c26542b8f5a322b87adf4 (diff)
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NUC900 LCD Controller Driver
An LCD controller driver for nuc900s. The Linux LOGO is just fine and the FB-Test application was ok, too. Signed-off-by: Wang Qiang <rurality.linux@gmail.com> Cc: Wang Zongshun <mcuos.com@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/mach-w90x900')
-rw-r--r--arch/arm/mach-w90x900/cpu.h1
-rw-r--r--arch/arm/mach-w90x900/dev.c42
-rw-r--r--arch/arm/mach-w90x900/include/mach/fb.h83
-rw-r--r--arch/arm/mach-w90x900/include/mach/regs-ldm.h253
-rw-r--r--arch/arm/mach-w90x900/mach-nuc950evb.c47
-rw-r--r--arch/arm/mach-w90x900/nuc950.c4
6 files changed, 430 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/cpu.h b/arch/arm/mach-w90x900/cpu.h
index 4d58ba1..f8730b6 100644
--- a/arch/arm/mach-w90x900/cpu.h
+++ b/arch/arm/mach-w90x900/cpu.h
@@ -57,3 +57,4 @@ extern struct platform_device nuc900_device_fmi;
extern struct platform_device nuc900_device_kpi;
extern struct platform_device nuc900_device_rtc;
extern struct platform_device nuc900_device_ts;
+extern struct platform_device nuc900_device_lcd;
diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c
index ec711f4..4887612 100644
--- a/arch/arm/mach-w90x900/dev.c
+++ b/arch/arm/mach-w90x900/dev.c
@@ -34,6 +34,7 @@
#include <mach/regs-serial.h>
#include <mach/nuc900_spi.h>
#include <mach/map.h>
+#include <mach/fb.h>
#include "cpu.h"
@@ -380,6 +381,47 @@ struct platform_device nuc900_device_kpi = {
.resource = nuc900_kpi_resource,
};
+#ifdef CONFIG_FB_NUC900
+
+static struct resource nuc900_lcd_resource[] = {
+ [0] = {
+ .start = W90X900_PA_LCD,
+ .end = W90X900_PA_LCD + W90X900_SZ_LCD - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_LCD,
+ .end = IRQ_LCD,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static u64 nuc900_device_lcd_dmamask = -1;
+struct platform_device nuc900_device_lcd = {
+ .name = "nuc900-lcd",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(nuc900_lcd_resource),
+ .resource = nuc900_lcd_resource,
+ .dev = {
+ .dma_mask = &nuc900_device_lcd_dmamask,
+ .coherent_dma_mask = -1,
+ }
+};
+
+void nuc900_fb_set_platdata(struct nuc900fb_mach_info *pd)
+{
+ struct nuc900fb_mach_info *npd;
+
+ npd = kmalloc(sizeof(*npd), GFP_KERNEL);
+ if (npd) {
+ memcpy(npd, pd, sizeof(*npd));
+ nuc900_device_lcd.dev.platform_data = npd;
+ } else {
+ printk(KERN_ERR "no memory for LCD platform data\n");
+ }
+}
+#endif
+
/*Here should be your evb resourse,such as LCD*/
static struct platform_device *nuc900_public_dev[] __initdata = {
diff --git a/arch/arm/mach-w90x900/include/mach/fb.h b/arch/arm/mach-w90x900/include/mach/fb.h
new file mode 100644
index 0000000..cec5ece
--- /dev/null
+++ b/arch/arm/mach-w90x900/include/mach/fb.h
@@ -0,0 +1,83 @@
+/* linux/include/asm/arch-nuc900/fb.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Changelog:
+ *
+ * 2008/08/26 vincen.zswan modify this file for LCD.
+ */
+
+#ifndef __ASM_ARM_FB_H
+#define __ASM_ARM_FB_H
+
+
+
+/* LCD Controller Hardware Desc */
+struct nuc900fb_hw {
+ unsigned int lcd_dccs;
+ unsigned int lcd_device_ctrl;
+ unsigned int lcd_mpulcd_cmd;
+ unsigned int lcd_int_cs;
+ unsigned int lcd_crtc_size;
+ unsigned int lcd_crtc_dend;
+ unsigned int lcd_crtc_hr;
+ unsigned int lcd_crtc_hsync;
+ unsigned int lcd_crtc_vr;
+ unsigned int lcd_va_baddr0;
+ unsigned int lcd_va_baddr1;
+ unsigned int lcd_va_fbctrl;
+ unsigned int lcd_va_scale;
+ unsigned int lcd_va_test;
+ unsigned int lcd_va_win;
+ unsigned int lcd_va_stuff;
+};
+
+/* LCD Display Description */
+struct nuc900fb_display {
+ /* LCD Image type */
+ unsigned type;
+
+ /* LCD Screen Size */
+ unsigned short width;
+ unsigned short height;
+
+ /* LCD Screen Info */
+ unsigned short xres;
+ unsigned short yres;
+ unsigned short bpp;
+
+ unsigned long pixclock;
+ unsigned short left_margin;
+ unsigned short right_margin;
+ unsigned short hsync_len;
+ unsigned short upper_margin;
+ unsigned short lower_margin;
+ unsigned short vsync_len;
+
+ /* hardware special register value */
+ unsigned int dccs;
+ unsigned int devctl;
+ unsigned int fbctrl;
+ unsigned int scale;
+};
+
+struct nuc900fb_mach_info {
+ struct nuc900fb_display *displays;
+ unsigned num_displays;
+ unsigned default_display;
+ /* GPIO Setting Info */
+ unsigned gpio_dir;
+ unsigned gpio_dir_mask;
+ unsigned gpio_data;
+ unsigned gpio_data_mask;
+};
+
+extern void __init nuc900_fb_set_platdata(struct nuc900fb_mach_info *);
+
+#endif /* __ASM_ARM_FB_H */
diff --git a/arch/arm/mach-w90x900/include/mach/regs-ldm.h b/arch/arm/mach-w90x900/include/mach/regs-ldm.h
new file mode 100644
index 0000000..e9d480a
--- /dev/null
+++ b/arch/arm/mach-w90x900/include/mach/regs-ldm.h
@@ -0,0 +1,253 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/regs-serial.h
+ *
+ * Copyright (c) 2009 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Description:
+ * Nuvoton Display, LCM Register list
+ * Author: Wang Qiang (rurality.linux@gmail.com) 2009/12/11
+ *
+ */
+
+
+#ifndef __ASM_ARM_W90X900_REGS_LDM_H
+#define __ASM_ARM_W90X900_REGS_LDM_H
+
+#include <mach/map.h>
+
+/* Display Controller Control/Status Register */
+#define REG_LCM_DCCS (0x00)
+
+#define LCM_DCCS_ENG_RST (1 << 0)
+#define LCM_DCCS_VA_EN (1 << 1)
+#define LCM_DCCS_OSD_EN (1 << 2)
+#define LCM_DCCS_DISP_OUT_EN (1 << 3)
+#define LCM_DCCS_DISP_INT_EN (1 << 4)
+#define LCM_DCCS_CMD_ON (1 << 5)
+#define LCM_DCCS_FIELD_INTR (1 << 6)
+#define LCM_DCCS_SINGLE (1 << 7)
+
+enum LCM_DCCS_VA_SRC {
+ LCM_DCCS_VA_SRC_YUV422 = (0 << 8),
+ LCM_DCCS_VA_SRC_YCBCR422 = (1 << 8),
+ LCM_DCCS_VA_SRC_RGB888 = (2 << 8),
+ LCM_DCCS_VA_SRC_RGB666 = (3 << 8),
+ LCM_DCCS_VA_SRC_RGB565 = (4 << 8),
+ LCM_DCCS_VA_SRC_RGB444LOW = (5 << 8),
+ LCM_DCCS_VA_SRC_RGB444HIGH = (7 << 8)
+};
+
+
+/* Display Device Control Register */
+#define REG_LCM_DEV_CTRL (0x04)
+
+enum LCM_DEV_CTRL_SWAP_YCbCr {
+ LCM_DEV_CTRL_SWAP_UYVY = (0 << 1),
+ LCM_DEV_CTRL_SWAP_YUYV = (1 << 1),
+ LCM_DEV_CTRL_SWAP_VYUY = (2 << 1),
+ LCM_DEV_CTRL_SWAP_YVYU = (3 << 1)
+};
+
+enum LCM_DEV_CTRL_RGB_SHIFT {
+ LCM_DEV_CTRL_RGB_SHIFT_NOT = (0 << 3),
+ LCM_DEV_CTRL_RGB_SHIFT_ONECYCLE = (1 << 3),
+ LCM_DEV_CTRL_RGB_SHIFT_TWOCYCLE = (2 << 3),
+ LCM_DEV_CTRL_RGB_SHIFT_NOT_DEF = (3 << 3)
+};
+
+enum LCM_DEV_CTRL_DEVICE {
+ LCM_DEV_CTRL_DEVICE_YUV422 = (0 << 5),
+ LCM_DEV_CTRL_DEVICE_YUV444 = (1 << 5),
+ LCM_DEV_CTRL_DEVICE_UNIPAC = (4 << 5),
+ LCM_DEV_CTRL_DEVICE_SEIKO_EPSON = (5 << 5),
+ LCM_DEV_CTRL_DEVICE_HIGH_COLOR = (6 << 5),
+ LCM_DEV_CTRL_DEVICE_MPU = (7 << 5)
+};
+
+#define LCM_DEV_CTRL_LCD_DDA (8)
+#define LCM_DEV_CTRL_YUV2CCIR (16)
+
+enum LCM_DEV_CTRL_LCD_SEL {
+ LCM_DEV_CTRL_LCD_SEL_RGB_GBR = (0 << 17),
+ LCM_DEV_CTRL_LCD_SEL_BGR_RBG = (1 << 17),
+ LCM_DEV_CTRL_LCD_SEL_GBR_RGB = (2 << 17),
+ LCM_DEV_CTRL_LCD_SEL_RBG_BGR = (3 << 17)
+};
+
+enum LCM_DEV_CTRL_FAL_D {
+ LCM_DEV_CTRL_FAL_D_FALLING = (0 << 19),
+ LCM_DEV_CTRL_FAL_D_RISING = (1 << 19),
+};
+
+enum LCM_DEV_CTRL_H_POL {
+ LCM_DEV_CTRL_H_POL_LOW = (0 << 20),
+ LCM_DEV_CTRL_H_POL_HIGH = (1 << 20),
+};
+
+enum LCM_DEV_CTRL_V_POL {
+ LCM_DEV_CTRL_V_POL_LOW = (0 << 21),
+ LCM_DEV_CTRL_V_POL_HIGH = (1 << 21),
+};
+
+enum LCM_DEV_CTRL_VR_LACE {
+ LCM_DEV_CTRL_VR_LACE_NINTERLACE = (0 << 22),
+ LCM_DEV_CTRL_VR_LACE_INTERLACE = (1 << 22),
+};
+
+enum LCM_DEV_CTRL_LACE {
+ LCM_DEV_CTRL_LACE_NINTERLACE = (0 << 23),
+ LCM_DEV_CTRL_LACE_INTERLACE = (1 << 23),
+};
+
+enum LCM_DEV_CTRL_RGB_SCALE {
+ LCM_DEV_CTRL_RGB_SCALE_4096 = (0 << 24),
+ LCM_DEV_CTRL_RGB_SCALE_65536 = (1 << 24),
+ LCM_DEV_CTRL_RGB_SCALE_262144 = (2 << 24),
+ LCM_DEV_CTRL_RGB_SCALE_16777216 = (3 << 24),
+};
+
+enum LCM_DEV_CTRL_DBWORD {
+ LCM_DEV_CTRL_DBWORD_HALFWORD = (0 << 26),
+ LCM_DEV_CTRL_DBWORD_FULLWORD = (1 << 26),
+};
+
+enum LCM_DEV_CTRL_MPU68 {
+ LCM_DEV_CTRL_MPU68_80_SERIES = (0 << 27),
+ LCM_DEV_CTRL_MPU68_68_SERIES = (1 << 27),
+};
+
+enum LCM_DEV_CTRL_DE_POL {
+ LCM_DEV_CTRL_DE_POL_HIGH = (0 << 28),
+ LCM_DEV_CTRL_DE_POL_LOW = (1 << 28),
+};
+
+#define LCM_DEV_CTRL_CMD16 (29)
+#define LCM_DEV_CTRL_CM16t18 (30)
+#define LCM_DEV_CTRL_CMD_LOW (31)
+
+/* MPU-Interface LCD Write Command */
+#define REG_LCM_MPU_CMD (0x08)
+
+/* Interrupt Control/Status Register */
+#define REG_LCM_INT_CS (0x0c)
+#define LCM_INT_CS_DISP_F_EN (1 << 0)
+#define LCM_INT_CS_UNDERRUN_EN (1 << 1)
+#define LCM_INT_CS_BUS_ERROR_INT (1 << 28)
+#define LCM_INT_CS_UNDERRUN_INT (1 << 29)
+#define LCM_INT_CS_DISP_F_STATUS (1 << 30)
+#define LCM_INT_CS_DISP_F_INT (1 << 31)
+
+/* CRTC Display Size Control Register */
+#define REG_LCM_CRTC_SIZE (0x10)
+#define LCM_CRTC_SIZE_VTTVAL(x) ((x) << 16)
+#define LCM_CRTC_SIZE_HTTVAL(x) ((x) << 0)
+
+/* CRTC Display Enable End */
+#define REG_LCM_CRTC_DEND (0x14)
+#define LCM_CRTC_DEND_VDENDVAL(x) ((x) << 16)
+#define LCM_CRTC_DEND_HDENDVAL(x) ((x) << 0)
+
+/* CRTC Internal Horizontal Retrace Control Register */
+#define REG_LCM_CRTC_HR (0x18)
+#define LCM_CRTC_HR_EVAL(x) ((x) << 16)
+#define LCM_CRTC_HR_SVAL(x) ((x) << 0)
+
+/* CRTC Horizontal Sync Control Register */
+#define REG_LCM_CRTC_HSYNC (0x1C)
+#define LCM_CRTC_HSYNC_SHIFTVAL(x) ((x) << 30)
+#define LCM_CRTC_HSYNC_EVAL(x) ((x) << 16)
+#define LCM_CRTC_HSYNC_SVAL(x) ((x) << 0)
+
+/* CRTC Internal Vertical Retrace Control Register */
+#define REG_LCM_CRTC_VR (0x20)
+#define LCM_CRTC_VR_EVAL(x) ((x) << 16)
+#define LCM_CRTC_VR_SVAL(x) ((x) << 0)
+
+/* Video Stream Frame Buffer-0 Starting Address */
+#define REG_LCM_VA_BADDR0 (0x24)
+
+/* Video Stream Frame Buffer-1 Starting Address */
+#define REG_LCM_VA_BADDR1 (0x28)
+
+/* Video Stream Frame Buffer Control Register */
+#define REG_LCM_VA_FBCTRL (0x2C)
+#define LCM_VA_FBCTRL_IO_REGION_HALF (1 << 28)
+#define LCM_VA_FBCTRL_FIELD_DUAL (1 << 29)
+#define LCM_VA_FBCTRL_START_BUF (1 << 30)
+#define LCM_VA_FBCTRL_DB_EN (1 << 31)
+
+/* Video Stream Scaling Control Register */
+#define REG_LCM_VA_SCALE (0x30)
+#define LCM_VA_SCALE_XCOPY_INTERPOLATION (0 << 15)
+#define LCM_VA_SCALE_XCOPY_DUPLICATION (1 << 15)
+
+/* Image Stream Active Window Coordinates */
+#define REG_LCM_VA_WIN (0x38)
+
+/* Image Stream Stuff Pixel */
+#define REG_LCM_VA_STUFF (0x3C)
+
+/* OSD Window Starting Coordinates */
+#define REG_LCM_OSD_WINS (0x40)
+
+/* OSD Window Ending Coordinates */
+#define REG_LCM_OSD_WINE (0x44)
+
+/* OSD Stream Frame Buffer Starting Address */
+#define REG_LCM_OSD_BADDR (0x48)
+
+/* OSD Stream Frame Buffer Control Register */
+#define REG_LCM_OSD_FBCTRL (0x4c)
+
+/* OSD Overlay Control Register */
+#define REG_LCM_OSD_OVERLAY (0x50)
+
+/* OSD Overlay Color-Key Pattern Register */
+#define REG_LCM_OSD_CKEY (0x54)
+
+/* OSD Overlay Color-Key Mask Register */
+#define REG_LCM_OSD_CMASK (0x58)
+
+/* OSD Window Skip1 Register */
+#define REG_LCM_OSD_SKIP1 (0x5C)
+
+/* OSD Window Skip2 Register */
+#define REG_LCM_OSD_SKIP2 (0x60)
+
+/* OSD horizontal up scaling control register */
+#define REG_LCM_OSD_SCALE (0x64)
+
+/* MPU Vsync control register */
+#define REG_LCM_MPU_VSYNC (0x68)
+
+/* Hardware cursor control Register */
+#define REG_LCM_HC_CTRL (0x6C)
+
+/* Hardware cursot tip point potison on va picture */
+#define REG_LCM_HC_POS (0x70)
+
+/* Hardware Cursor Window Buffer Control Register */
+#define REG_LCM_HC_WBCTRL (0x74)
+
+/* Hardware cursor memory base address register */
+#define REG_LCM_HC_BADDR (0x78)
+
+/* Hardware cursor color ram register mapped to bpp = 0 */
+#define REG_LCM_HC_COLOR0 (0x7C)
+
+/* Hardware cursor color ram register mapped to bpp = 1 */
+#define REG_LCM_HC_COLOR1 (0x80)
+
+/* Hardware cursor color ram register mapped to bpp = 2 */
+#define REG_LCM_HC_COLOR2 (0x84)
+
+/* Hardware cursor color ram register mapped to bpp = 3 */
+#define REG_LCM_HC_COLOR3 (0x88)
+
+#endif /* __ASM_ARM_W90X900_REGS_LDM_H */
diff --git a/arch/arm/mach-w90x900/mach-nuc950evb.c b/arch/arm/mach-w90x900/mach-nuc950evb.c
index cef903b..b3edc3c 100644
--- a/arch/arm/mach-w90x900/mach-nuc950evb.c
+++ b/arch/arm/mach-w90x900/mach-nuc950evb.c
@@ -10,6 +10,8 @@
* 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;version 2 of the License.
+ * history:
+ * Wang Qiang (rurality.linux@gmail.com) add LCD support
*
*/
@@ -18,9 +20,51 @@
#include <asm/mach/map.h>
#include <asm/mach-types.h>
#include <mach/map.h>
+#include <mach/regs-ldm.h>
+#include <mach/fb.h>
#include "nuc950.h"
+#ifdef CONFIG_FB_NUC900
+/* LCD Controller */
+static struct nuc900fb_display __initdata nuc950_lcd_info[] = {
+ /* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */
+ [0] = {
+ .type = LCM_DCCS_VA_SRC_RGB565,
+ .width = 320,
+ .height = 240,
+ .xres = 320,
+ .yres = 240,
+ .bpp = 16,
+ .pixclock = 200000,
+ .left_margin = 34,
+ .right_margin = 54,
+ .hsync_len = 10,
+ .upper_margin = 18,
+ .lower_margin = 4,
+ .vsync_len = 1,
+ .dccs = 0x8e00041a,
+ .devctl = 0x060800c0,
+ .fbctrl = 0x00a000a0,
+ .scale = 0x04000400,
+ },
+};
+
+static struct nuc900fb_mach_info nuc950_fb_info __initdata = {
+#if defined(CONFIG_GPM1040A0_320X240)
+ .displays = &nuc950_lcd_info[0],
+#else
+ .displays = nuc950_lcd_info,
+#endif
+ .num_displays = ARRAY_SIZE(nuc950_lcd_info),
+ .default_display = 0,
+ .gpio_dir = 0x00000004,
+ .gpio_dir_mask = 0xFFFFFFFD,
+ .gpio_data = 0x00000004,
+ .gpio_data_mask = 0xFFFFFFFD,
+};
+#endif
+
static void __init nuc950evb_map_io(void)
{
nuc950_map_io();
@@ -30,6 +74,9 @@ static void __init nuc950evb_map_io(void)
static void __init nuc950evb_init(void)
{
nuc950_board_init();
+#ifdef CONFIG_FB_NUC900
+ nuc900_fb_set_platdata(&nuc950_fb_info);
+#endif
}
MACHINE_START(W90P950EVB, "W90P950EVB")
diff --git a/arch/arm/mach-w90x900/nuc950.c b/arch/arm/mach-w90x900/nuc950.c
index 1495081..4d1f1ab 100644
--- a/arch/arm/mach-w90x900/nuc950.c
+++ b/arch/arm/mach-w90x900/nuc950.c
@@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
+
#include "cpu.h"
/* define specific CPU platform device */
@@ -25,6 +26,9 @@
static struct platform_device *nuc950_dev[] __initdata = {
&nuc900_device_kpi,
&nuc900_device_fmi,
+#ifdef CONFIG_FB_NUC900
+ &nuc900_device_lcd,
+#endif
};
/* define specific CPU platform io map */