Ajay Kumar wrote: > > This patch adds: > o GPIO lines settings(HSYNC, VSYNC, VCLK and VD) for LCD. > o Function to select type of LCD interface (RGB/i80) > > Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx> > --- > arch/arm/mach-s5p64x0/Kconfig | 6 +++ > arch/arm/mach-s5p64x0/Makefile | 1 + > arch/arm/mach-s5p64x0/include/mach/regs-gpio.h | 4 ++ > arch/arm/mach-s5p64x0/setup-fb.c | 48 > ++++++++++++++++++++++++ > arch/arm/plat-samsung/include/plat/fb.h | 14 +++++++ > 5 files changed, 73 insertions(+), 0 deletions(-) > create mode 100644 arch/arm/mach-s5p64x0/setup-fb.c > > diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig > index 017af4c..2ca5ac0 100644 > --- a/arch/arm/mach-s5p64x0/Kconfig > +++ b/arch/arm/mach-s5p64x0/Kconfig > @@ -21,6 +21,12 @@ config CPU_S5P6450 > help > Enable S5P6450 CPU support > > +config S5P64X0_SETUP_FB > + bool > + help > + Common setup code for S5P64X0 based boards with a LCD display > + through RGB interface. > + > config S5P64X0_SETUP_I2C1 > bool > help > diff --git a/arch/arm/mach-s5p64x0/Makefile b/arch/arm/mach-s5p64x0/Makefile > index ae6bf6f..43698c6 100644 > --- a/arch/arm/mach-s5p64x0/Makefile > +++ b/arch/arm/mach-s5p64x0/Makefile > @@ -28,3 +28,4 @@ obj-y += dev-audio.o > obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o > > obj-$(CONFIG_S5P64X0_SETUP_I2C1) += setup-i2c1.o > +obj-$(CONFIG_S5P64X0_SETUP_FB) += setup-fb.o > diff --git a/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h b/arch/arm/mach- > s5p64x0/include/mach/regs-gpio.h > index 0953ef6..2f07cbd 100644 > --- a/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h > +++ b/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h > @@ -34,4 +34,8 @@ > #define S5P6450_GPQ_BASE (S5P_VA_GPIO + 0x0180) > #define S5P6450_GPS_BASE (S5P_VA_GPIO + 0x0300) > > +#define S5P64X0_SPCON0 (S5P_VA_GPIO + 0x1A0) > +#define S5P64X0_SPCON0_LCD_SEL_MASK (0x3 << 0) > +#define S5P64X0_SPCON0_LCD_SEL_RGB (0x1 << 0) > + > #endif /* __ASM_ARCH_REGS_GPIO_H */ > diff --git a/arch/arm/mach-s5p64x0/setup-fb.c b/arch/arm/mach-s5p64x0/setup-fb.c > new file mode 100644 > index 0000000..3e8ffad > --- /dev/null > +++ b/arch/arm/mach-s5p64x0/setup-fb.c > @@ -0,0 +1,48 @@ > +/* linux/arch/arm/mach-s5p64x0/setup-fb.c > + * > + * Copyright (c) 2011 Samsung Electronics Co., Ltd. > + * http://www.samsung.com/ > + * > + * Base S5P64X0 GPIO setup information for LCD framebuffer > + * > + * GPIO settings for LCD on any other board based on s5p64x0 > + * should go in this file. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > +*/ > + > +#include <linux/fb.h> > +#include <linux/gpio.h> > + > +#include <plat/fb.h> > +#include <plat/gpio-cfg.h> > + > +#include <mach/regs-clock.h> > +#include <mach/regs-gpio.h> > + > +void s5p64x0_fb_init(int lcd_interface_type) > +{ > + unsigned int cfg; > + > + /* select TFT LCD type (RGB I/F) */ > + cfg = readl(S5P64X0_SPCON0); Since no need memory barrier here, just use __raw_readl > + cfg &= ~S5P64X0_SPCON0_LCD_SEL_MASK; > + cfg |= lcd_interface_type; > + writel(cfg, S5P64X0_SPCON0); __raw_writel > +} > + > +void s5p64x0_fb_gpio_setup_24bpp(void) > +{ > + unsigned int cfg; > + > + cfg = readl(S5P64X0_SYS_ID) & 0xf0000; > + if (cfg == 0x40000) { > + s3c_gpio_cfgrange_nopull(S5P6440_GPI(0), 16, > S3C_GPIO_SFN(2)); > + s3c_gpio_cfgrange_nopull(S5P6440_GPJ(0), 12, > S3C_GPIO_SFN(2)); > + } else if (cfg == 0x50000) { > + s3c_gpio_cfgrange_nopull(S5P6450_GPI(0), 16, > S3C_GPIO_SFN(2)); > + s3c_gpio_cfgrange_nopull(S5P6450_GPJ(0), 12, > S3C_GPIO_SFN(2)); > + } Following is more make sense ? + unsigned int chipid; + + chipid = __raw_readl(S5P64X0_SYS_ID) & 0xff000; + if (chipd == 0x50000) { + s3c_gpio_cfgrange_nopull(S5P6450_GPI(0), 16, S3C_GPIO_SFN(2)); + s3c_gpio_cfgrange_nopull(S5P6450_GPJ(0), 12, S3C_GPIO_SFN(2)); + } else { + s3c_gpio_cfgrange_nopull(S5P6440_GPI(0), 16, S3C_GPIO_SFN(2)); + s3c_gpio_cfgrange_nopull(S5P6440_GPJ(0), 12, S3C_GPIO_SFN(2)); + } > +} > diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat- > samsung/include/plat/fb.h > index cb3ca3a..8147c59 100644 > --- a/arch/arm/plat-samsung/include/plat/fb.h > +++ b/arch/arm/plat-samsung/include/plat/fb.h > @@ -94,4 +94,18 @@ extern void s5pc100_fb_gpio_setup_24bpp(void); > */ > extern void s5pv210_fb_gpio_setup_24bpp(void); > > +/** > + * s5p64x0_fb_init() - Common setup function for LCD > + * > + * Select LCD I/F configuration-RGB style or i80 style > + */ > +extern void s5p64x0_fb_init(int lcd_interface_type); > + > +/** > + * s5p64x0_fb_gpio_setup_24bpp() - Common GPIO setup function for LCD > + * > + * Initialise the GPIO for a LCD display on the RGB interface. > + */ > +extern void s5p64x0_fb_gpio_setup_24bpp(void); > + > #endif /* __PLAT_S3C_FB_H */ > -- > 1.7.1 Thanks. Best regards, Kgene. -- Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer, SW Solution Development Team, Samsung Electronics Co., Ltd. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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