Linux3.8.3在OK6410平台的移植LCD驱动

1./linux-3.8.3/arch/arm/mach-s3c64xx/mach-ok6410.c关于LCD的部分程序:

static struct s3c_fb_pd_win ok6410_lcd_type0_fb_win = {

.max_bpp = 32,

.default_bpp = 16,

.xres = 480,

.yres = 272,

};

static struct fb_videomode ok6410_lcd_type0_timing = {

/* 4.3" 480x272 */

.left_margin = 2,//3,

.right_margin = 2,

.upper_margin = 2,//1,

.lower_margin = 2,//1,

.hsync_len = 41,//40,

.vsync_len = 10,//1,

.xres = 480,

.yres = 272,

};

/*对于4.3寸屏 这部分没有用，所以屏蔽掉了

static struct s3c_fb_pd_win ok6410_lcd_type1_fb_win = {

.max_bpp = 32,

.default_bpp = 16,

.xres = 800,

.yres = 480,

};

static struct fb_videomode ok6410_lcd_type1_timing = {

// 7.0" 800x480 

.left_margin = 8,

.right_margin = 13,

.upper_margin = 7,

.lower_margin = 5,

.hsync_len = 3,

.vsync_len = 1,

.xres = 800,

.yres = 480,

};*/

static struct s3c_fb_platdata ok6410_lcd_pdata[] __initdata = {

{

.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,

.vtiming = &ok6410_lcd_type0_timing,

.win[0] = &ok6410_lcd_type0_fb_win,

.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,

.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,

},/* {

.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,

.vtiming = &ok6410_lcd_type1_timing,

.win[0] = &ok6410_lcd_type1_fb_win,

.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,

.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,

},*/

{ },

};

static void ok6410_lcd_power_set(struct plat_lcd_data *pd,

unsigned int power)

{

/*if (power)

gpio_direction_output(S3C64XX_GPE(0), 1);

else

gpio_direction_output(S3C64XX_GPE(0), 0);*/

if (power) {

gpio_direction_output(S3C64XX_GPF(13), 1);

gpio_direction_output(S3C64XX_GPF(15), 1);

/* fire nRESET on power up */

gpio_direction_output(S3C64XX_GPN(5), 0);

msleep(10);

gpio_direction_output(S3C64XX_GPN(5), 1);

msleep(1);

} else {

gpio_direction_output(S3C64XX_GPF(15), 0);

gpio_direction_output(S3C64XX_GPF(13), 0);

}

}

static struct plat_lcd_data ok6410_lcd_power_data = {

.set_power = ok6410_lcd_power_set,

};

static struct platform_device ok6410_lcd_powerdev = {

.name = "platform-lcd",

.dev.parent = &s3c_device_fb.dev,

.dev.platform_data = &ok6410_lcd_power_data,

};

static struct platform_device *ok6410_devices[] __initdata = {

&ok6410_device_eth,

&s3c_device_hsmmc0,

&s3c_device_hsmmc1,

&s3c_device_ohci,

&s3c_device_usb_hsotg,

&s3c_device_nand,
&s3c_device_fb,
&ok6410_lcd_powerdev,

&s3c_device_adc,

&s3c_device_ts,

};

static struct map_desc smdk6410_iodesc[] = {

{

/* LCD support */

.virtual = (unsigned long)S3C_VA_LCD,

.pfn = __phys_to_pfn(S3C_PA_FB),

.length = SZ_16K,

.type = MT_DEVICE,

},

};

static void __init ok6410_map_io(void)

{

u32 tmp;

s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));

s3c24xx_init_clocks(12000000);

s3c24xx_init_uarts(ok6410_uartcfgs, ARRAY_SIZE(ok6410_uartcfgs));

/* set the LCD type */

tmp = __raw_readl(S3C64XX_SPCON);

tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;

tmp |= S3C64XX_SPCON_LCD_SEL_RGB;

__raw_writel(tmp, S3C64XX_SPCON);

/* remove the LCD bypass */

tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);

tmp &= ~MIFPCON_LCD_BYPASS;

__raw_writel(tmp, S3C64XX_MODEM_MIFPCON);

}

static void __init ok6410_machine_init(void)

{

u32 cs1;

struct ok6410_features_t features = { 0 };

printk(KERN_INFO "OK6410: Option string ok6410=%s\n",

ok6410_features_str);

/* Parse the feature string */

ok6410_parse_features(&features, ok6410_features_str);

printk(KERN_INFO "OK6410: selected LCD display is %dx%d\n",

ok6410_lcd_pdata[features.lcd_index].win[0]->xres,

ok6410_lcd_pdata[features.lcd_index].win[0]->yres);

s3c_nand_set_platdata(&ok6410_nand_info);

s3c_fb_set_platdata(&ok6410_lcd_pdata[features.lcd_index]);

s3c24xx_ts_set_platdata(NULL);

s3c_sdhci0_set_platdata(&ok6410_hsmmc0_pdata);

s3c_sdhci1_set_platdata(&ok6410_hsmmc1_pdata);

s3c_hsotg_phy_config(1);

/* configure nCS1 width to 16 bits */

cs1 = __raw_readl(S3C64XX_SROM_BW) &

~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);

cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |

(1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |

(1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<

S3C64XX_SROM_BW__NCS1__SHIFT;

__raw_writel(cs1, S3C64XX_SROM_BW);

/* set timing for nCS1 suitable for ethernet chip */

__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |

(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |

(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |

(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |

(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |

(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |

(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);

gpio_request(S3C64XX_GPF(15), "LCD power");
gpio_request(S3C64XX_GPE(0), "LCD power");

platform_add_devices(ok6410_devices, ARRAY_SIZE(ok6410_devices));

}

2.将厂家提供的源代码linux3.0.1中的drviers/video/samsung拷贝到drviers/video/目录下

修改drviers/video/的Kconfig文件，在文件中加入

source "drivers/video/samsung/Kconfig"

修改修改drviers/video/的Makefie文件,再最后一行添加：

obj-$(CONFIG_FB_S3C_EXT) += samsung/

在arch/arm/plat-samsung/include/plat/map-base.h里面添加

#define S3C_VA_LCD S3C_ADDR(0x01100000) /* LCD */

在include/generated/atuoconfig.h里面添加

#define CONFIG_FB_S3C_EXT_NUM 4

把drivers/video/samsung/s3cfb_fimd4x.c里面的

s3c6410_pm_do_save(s3c_lcd_save, ARRAY_SIZE(s3c_lcd_save));

改成s3c_pm_do_save(s3c_lcd_save, ARRAY_SIZE(s3c_lcd_save));

s3c6410_pm_do_restore(s3c_lcd_save, ARRAY_SIZE(s3c_lcd_save));

改成s3c_pm_do_restore(s3c_lcd_save, ARRAY_SIZE(s3c_lcd_save));

3.配置内核：

Device Drivers ---> 

Graphics support ---> 

<*> Support for frame buffer devices ---> （里面的都空选） 

 [ ] Backlight & LCD device support ---> 

<*> S3C Framebuffer Support (eXtended)（修改Kconfig之后才有这个选） 

Select LCD Type (4.3 inch 480x272 TFT LCD) ---> 

(X) 4.3 inch 480x272 TFT LCD 

<*> Advanced options for S3C Framebuffer 

Select BPP(Bits Per Pixel) (16 BPP) ---> 

(4) Number of Framebuffers 

[ ] Enable Virtual Screen 

[*] Enable Double Buffering 

Console display driver support ---> 

<*> Framebuffer Console support 

[*] Bootup logo --->（显示小企鹅） 

[*] Standard 224-color Linux logo

主要的移植过程基本上就这些，有些小错误很容易就能修改过来了。好了，最后启动系统如下：

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

Booting Linux on physical CPU 0

Linux version 3.6.7 (root@ubuntu) (gcc version 4.5.1 (ctng-1.8.1-FA) ) #39 Sun J

an 27 23:34:53 CST 2013

CPU: ARMv6-compatible processor [410fb766] revision 6 (ARMv7), cr=00c5387d

CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache

Machine: OK6410

Memory policy: ECC disabled, Data cache writeback

CPU S3C6410 (id 0x36410101)

S3C24XX Clocks, Copyright 2004 Simtec Electronics

camera: no parent clock specified

S3C64XX: PLL settings, A=533000000, M=533000000, E=24000000

S3C64XX: HCLK2=266500000, HCLK=133250000, PCLK=66625000

mout_apll: source is fout_apll (1), rate is 533000000

mout_epll: source is epll (1), rate is 24000000

mout_mpll: source is mpll (1), rate is 533000000

usb-bus-host: source is clk_48m (0), rate is 48000000

audio-bus: source is mout_epll (0), rate is 24000000

audio-bus: source is mout_epll (0), rate is 24000000

audio-bus: source is mout_epll (0), rate is 24000000

irda-bus: source is mout_epll (0), rate is 24000000

camera: no parent clock specified

CPU: found DTCM0 8k @ 00000000, not enabled

CPU: moved DTCM0 8k to fffe8000, enabled

CPU: found DTCM1 8k @ 00000000, not enabled

CPU: moved DTCM1 8k to fffea000, enabled

CPU: found ITCM0 8k @ 00000000, not enabled

CPU: moved ITCM0 8k to fffe0000, enabled

CPU: found ITCM1 8k @ 00000000, not enabled

CPU: moved ITCM1 8k to fffe2000, enabled

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024

Kernel command line: noinitrd root=/dev/mtdblock2 rootfstype=yaffs2 init=/linuxr

c console=ttySAC0,115200

PID hash table entries: 1024 (order: 0, 4096 bytes)

Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)

Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)

Memory: 256MB = 256MB total

Memory: 255128k/255128k available, 7016k reserved, 0K highmem

Virtual kernel memory layout:

vector : 0xffff0000 - 0xffff1000 ( 4 kB)

DTCM : 0xfffe8000 - 0xfffec000 ( 16 kB)

ITCM : 0xfffe0000 - 0xfffe4000 ( 16 kB)

fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)

vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)

lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)

modules : 0xbf000000 - 0xc0000000 ( 16 MB)

.text : 0xc0008000 - 0xc03fb458 (4046 kB)

.init : 0xc03fc000 - 0xc041cb5c ( 131 kB)

.data : 0xc041e000 - 0xc0459660 ( 238 kB)

.bss : 0xc045a024 - 0xc04975a0 ( 246 kB)

NR_IRQS:246

VIC @f6000000: id 0x00041192, vendor 0x41

VIC @f6010000: id 0x00041192, vendor 0x41

sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms

Console: colour dummy device 80x30

Calibrating delay loop... 353.89 BogoMIPS (lpj=1769472)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

Setting up static identity ma
d5b1
p for 0x50303288 - 0x503032e4

devtmpfs: initialized

NET: Registered protocol family 16

DMA: preallocated 256 KiB pool for atomic coherent allocations

OK6410: Option string ok6410=0

OK6410: selected LCD display is 480x272

s3c64xx_dma_init: Registering DMA channels

PL080: IRQ 73, at d0846000, channels 0..8

PL080: IRQ 74, at d0848000, channels 8..16

S3C6410: Initialising architecture

bio: create slab <bio-0> at 0

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

NET: Registered protocol family 2

TCP established hash table entries: 8192 (order: 4, 65536 bytes)

TCP bind hash table entries: 8192 (order: 5, 163840 bytes)

TCP: Hash tables configured (established 8192 bind 8192)

TCP: reno registered

UDP hash table entries: 256 (order: 1, 12288 bytes)

UDP-Lite hash table entries: 256 (order: 1, 12288 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

NFS: Registering the id_resolver key type

Key type id_resolver registered

Key type id_legacy registered

Installing knfsd (copyright (C) 1996 okir@monad.swb.de).

ROMFS MTD (C) 2007 Red Hat, Inc.

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

start plist test

end plist test

S3C_LCD clock got enabled :: 133.250 Mhz

LCD TYPE :: LTE480WV will be initialized

failed to request GPE for lcd reset control

Window[0] - FB1: map_video_memory: clear d0856000:0007f800

FB1: map_video_memory: dma=5fa00000 cpu=d0856000 size=0007f800

Window[0] - FB2: map_video_memory: clear d0895c00:0003fc00

FB2: map_video_memory: dma=5fa3fc00 cpu=d0895c00 size=0003fc00

Console: switching to colour frame buffer device 60x34

fb0: s3cfb frame buffer device

Window[1] - FB1: map_video_memory: clear d08d7000:0007f800

FB1: map_video_memory: dma=5fa80000 cpu=d08d7000 size=0007f800

Window[1] - FB2: map_video_memory: clear d0916c00:0003fc00

FB2: map_video_memory: dma=5fabfc00 cpu=d0916c00 size=0003fc00

fb1: s3cfb frame buffer device

Window[2] - FB1: map_video_memory: clear d0958000:0003fc00

FB1: map_video_memory: dma=5f9c0000 cpu=d0958000 size=0003fc00

fb2: s3cfb frame buffer device

Window[3] - FB1: map_video_memory: clear d0999000:0003fc00

FB1: map_video_memory: dma=5fb00000 cpu=d0999000 size=0003fc00

fb3: s3cfb frame buffer device

Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled

s3c6400-uart.0: ttySAC0 at MMIO 0x7f005000 (irq = 69) is a S3C6400/10

console [ttySAC0] enabled

s3c6400-uart.1: ttySAC1 at MMIO 0x7f005400 (irq = 70) is a S3C6400/10

s3c6400-uart.2: ttySAC2 at MMIO 0x7f005800 (irq = 71) is a S3C6400/10

s3c6400-uart.3: ttySAC3 at MMIO 0x7f005c00 (irq = 72) is a S3C6400/10

brd: module loaded

loop: module loaded

S3C NAND Driver, (c) 2008 Samsung Electronics

NandFlash is busying.........

forlinx nandflash dev_id=d5

forlinx****Nandflash:ChipType= MLC ChipName=samsung-K9GAG08U0D************

S3C NAND Driver is using hardware ECC.

NAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit)

, page size: 4096, OOB size: 218

Driver must set ecc.strength when using hardware ECC

Creating 4 MTD partitions on "NAND 2GiB 3,3V 8-bit":

0x000000000000-0x000000200000 : "Bootloader"

0x000000200000-0x000000700000 : "Kernel"

0x000000700000-0x00000cf00000 : "File System"

0x00000cf00000-0x000080000000 : "User"

dm9000 Ethernet Driver, V1.31

dm9000 dm9000: eth%d: Invalid ethernet MAC address. Please set using ifconfig

eth0: dm9000a at d09da000,d09dc004 IRQ 108 MAC: 9e:5e:ab:91:73:13 (random)

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

s3c2410-ohci s3c2410-ohci: S3C24XX OHCI

s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1

s3c2410-ohci s3c2410-ohci: irq 79, io mem 0x74300000

usb usb1: New USB device found, idVendor=1d6b, idProduct=0001

usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

usb usb1: Product: S3C24XX OHCI

usb usb1: Manufacturer: Linux 3.6.7 ohci_hcd

usb usb1: SerialNumber: s3c24xx

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

dummy_hcd dummy_hcd: USB Host+Gadget Emulator, driver 02 May 2005

dummy_hcd dummy_hcd: Dummy host controller

dummy_hcd dummy_hcd: new USB bus registered, assigned bus number 2

usb usb2: New USB device found, idVendor=1d6b, idProduct=0002

usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1

usb usb2: Product: Dummy host controller

usb usb2: Manufacturer: Linux 3.6.7 dummy_hcd

usb usb2: SerialNumber: dummy_hcd

hub 2-0:1.0: USB hub found

hub 2-0:1.0: 1 port detected

mousedev: PS/2 mouse device common for all mice

i2c /dev entries driver

sdhci: Secure Digital Host Controller Interface driver

sdhci: Copyright(c) Pierre Ossman

s3c-sdhci s3c-sdhci.0: clock source 0: mmc_busclk.0 (133250000 Hz)

s3c-sdhci s3c-sdhci.0: clock source 2: mmc_busclk.2 (24000000 Hz)

mmc0: SDHCI controller on samsung-hsmmc [s3c-sdhci.0] using ADMA

s3c-sdhci s3c-sdhci.1: clock source 0: mmc_busclk.0 (133250000 Hz)

s3c-sdhci s3c-sdhci.1: clock source 2: mmc_busclk.2 (24000000 Hz)

mmc0: mmc_rescan_try_freq: trying to init card at 400000 Hz

mmc1: SDHCI controller on samsung-hsmmc [s3c-sdhci.1] using ADMA

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

TCP: cubic registered

NET: Registered protocol family 17

Key type dns_resolver registered

VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5

drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

yaffs: dev is 32505858 name is "mtdblock2" rw

yaffs: passed flags ""

mmc0: new high speed SD card at address c7b6

mmcblk0: mmc0:c7b6 SD02G 1.83 GiB

mmcblk0:

mmc1: mmc_rescan_try_freq: trying to init card at 400000 Hz

VFS: Mounted root (yaffs2 filesystem) on device 31:2.

devtmpfs: mounted the root filesystem.

Freeing init memory: 128K

mmc1: mmc_rescan_try_freq: trying to init card at 300000 Hz

mmc1: mmc_rescan_try_freq: trying to init card at 200000 Hz

mmc1: mmc_rescan_try_freq: trying to init card at 100000 Hz

mount: mounting none on /proc/bus/usb failed: No such file or directory

/etc/init.d/rcS: line 21: /bin/hotplug: not found

hwclock: can't open '/dev/rtc': No such file or directory

/etc/init.d/rcS: line 38: /etc/rc.d/netd: Permission denied

*************************************

Welcome to Root FileSystem!
http://write.blog.csdn.net/postlist
*************************************

mkdir: can't create directory '/mnt/disk': File exists

yaffs: dev is 32505859 name is "mtdblock3" rw

yaffs: passed flags ""

Try to bring eth0 interface up......dm9000 dm9000: eth0: link down

Done

Starting Qtopia, please waiting...

/etc/init.d/rcS: line 67: /bin/qtopia: not found

Please press Enter to activate this console.

[root@STANzxd /]# ls

bin fs.sh lib mdev.conf root sys var

dev fs.sh~ linuxrc mnt sbin tmp

etc home lost+found proc sdcard usr

[root@STANzxd /]# usb 1-2: new full-speed USB device number 2 using s3c2410-ohci