Signed-off-by: Timo Ketola timo@exertus.fi --- arch/arm/include/asm/arch-mx25/imx-regs.h | 29 +++++++++ drivers/video/Makefile | 1 + drivers/video/mx2fb.c | 92 +++++++++++++++++++++++++++++ include/lcd.h | 21 ++++++- include/mx2fb.h | 39 ++++++++++++ 5 files changed, 181 insertions(+), 1 deletions(-) create mode 100644 drivers/video/mx2fb.c create mode 100644 include/mx2fb.h
diff --git a/arch/arm/include/asm/arch-mx25/imx-regs.h b/arch/arm/include/asm/arch-mx25/imx-regs.h index 7f9449b..af5b42e 100644 --- a/arch/arm/include/asm/arch-mx25/imx-regs.h +++ b/arch/arm/include/asm/arch-mx25/imx-regs.h @@ -167,6 +167,35 @@ struct aips_regs { u32 mpr_8_15; };
+struct lcdc_regs { + u32 lssar; + u32 lsr; + u32 lvpwr; + u32 lcpr; + u32 lcwhb; + u32 lccmr; + u32 lpcr; + u32 lhcr; + u32 lvcr; + u32 lpor; + u32 lscr; + u32 lpccr; + u32 ldcr; + u32 lrmcr; + u32 licr; + u32 lier; + u32 lisr; + u32 pad0[3]; + u32 lgwsar; + u32 lgwsr; + u32 lgwvpwr; + u32 lgwpor; + u32 lgwpr; + u32 pad1[0x200 - 25]; + u32 bglut[0x100]; + u32 gwlut[0x100]; +}; + #endif
/* AIPS 1 */ diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 6252f6a..e047471 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -36,6 +36,7 @@ COBJS-$(CONFIG_VIDEO_CT69000) += ct69000.o videomodes.o COBJS-$(CONFIG_VIDEO_DA8XX) += da8xx-fb.o videomodes.o COBJS-$(CONFIG_VIDEO_MB862xx) += mb862xx.o videomodes.o COBJS-$(CONFIG_VIDEO_MB86R0xGDC) += mb86r0xgdc.o videomodes.o +COBJS-$(CONFIG_VIDEO_MX2) += mx2fb.o COBJS-$(CONFIG_VIDEO_MX3) += mx3fb.o videomodes.o COBJS-$(CONFIG_VIDEO_MX5) += mxc_ipuv3_fb.o ipu_common.o ipu_disp.o COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o videomodes.o diff --git a/drivers/video/mx2fb.c b/drivers/video/mx2fb.c new file mode 100644 index 0000000..9ee4a3e --- /dev/null +++ b/drivers/video/mx2fb.c @@ -0,0 +1,92 @@ +#include <common.h> +#include <lcd.h> +#include <mx2fb.h> +#include <asm/arch/imx-regs.h> +#include <asm/io.h> +#include <asm/errno.h> + +#if !defined(LCD_BPP) || LCD_BPP != LCD_COLOR16 + +#error Only 16bpp is supported + +#endif + +DECLARE_GLOBAL_DATA_PTR; + +void *lcd_base; /* Start of framebuffer memory */ +void *lcd_console_address; /* Start of console buffer */ + +int lcd_line_length; +int lcd_color_fg; +int lcd_color_bg; + +short console_col; +short console_row; + + +void lcd_initcolregs(void) +{ +} + +void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue) +{ +} + +void lcd_enable(void) +{ +} + +void lcd_disable(void) +{ +} + +void lcd_panel_disable(void) +{ +} + +void lcd_ctrl_init(void *lcdbase) +{ + u32 ccm_ipg_cg, pcr; + struct lcdc_regs *lcdc = (struct lcdc_regs *)IMX_LCDC_BASE; + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + + writel(gd->fb_base, &lcdc->lssar); + writel(panel_info.vl_col >> 4 << 20 | panel_info.vl_row, &lcdc->lsr); + writel(panel_info.vl_col / 2, &lcdc->lvpwr); + if (panel_info.vl_bpix != 4) + printf("Unsupported color depth (%d), only 16bpp supported\n", + NBITS(panel_info.vl_bpix)); + pcr = LCDC_LPCR | 5 << 25; + + if (panel_info.vl_sync & FB_SYNC_CLK_LAT_FALL) + pcr |= 0x00200000; + if (panel_info.vl_sync & FB_SYNC_DATA_INVERT) + pcr |= 0x01000000; + if (panel_info.vl_sync & FB_SYNC_SHARP_MODE) + pcr |= 0x00000040; + if (panel_info.vl_sync & FB_SYNC_OE_LOW_ACT) + pcr |= 0x00100000; + + pcr |= LCDC_LPCR_PCD; + + writel(pcr, &lcdc->lpcr); + writel((panel_info.vl_hsync - 1) << 26 | + (panel_info.vl_right_margin - 1) << 8 | + (panel_info.vl_left_margin - 3), + &lcdc->lhcr); + writel(panel_info.vl_vsync << 26 | + panel_info.vl_lower_margin << 8 | + panel_info.vl_upper_margin, + &lcdc->lvcr); + writel(LCDC_LSCR, &lcdc->lscr); + writel(LCDC_LRMCR, &lcdc->lrmcr); + writel(LCDC_LDCR, &lcdc->ldcr); + writel(LCDC_LPCCR, &lcdc->lpccr); + + /* Off and on clock gating + FIXME: Why *off* and on; What side effects does it have? */ + ccm_ipg_cg = readl(&ccm->cgr1); + + writel(ccm_ipg_cg & 0xDFFFFFFF, &ccm->cgr1); + writel(ccm_ipg_cg | 0x20000000, &ccm->cgr1); +} diff --git a/include/lcd.h b/include/lcd.h index d95feeb..a5eeb53 100644 --- a/include/lcd.h +++ b/include/lcd.h @@ -183,6 +183,25 @@ typedef struct vidinfo { u_long mmio; /* Memory mapped registers */ } vidinfo_t;
+#elif defined(CONFIG_VIDEO_MX2) + +struct vidinfo { + ushort vl_row; /* resolution in x */ + ushort 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; +}; + #else
typedef struct vidinfo { @@ -198,7 +217,7 @@ typedef struct vidinfo {
#endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_MCC200, CONFIG_ATMEL_LCD */
-extern vidinfo_t panel_info; +extern struct vidinfo panel_info;
/* Video functions */
diff --git a/include/mx2fb.h b/include/mx2fb.h new file mode 100644 index 0000000..1f16a61 --- /dev/null +++ b/include/mx2fb.h @@ -0,0 +1,39 @@ +/* + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#ifndef __MX2FB_H__ +#define __MX2FB_H__ + + +/* LCDC register settings */ + +#define LCDC_LSCR 0x00120300 + +#define LCDC_LRMCR 0x00000000 + +#define LCDC_LDCR 0x00020010 + +#define LCDC_LPCCR 0x00a9037f + +#define LCDC_LPCR 0xFA008B80 + +#define LCDC_LPCR_PCD 0x4 + +#define FB_SYNC_OE_LOW_ACT 0x80000000 +#define FB_SYNC_CLK_LAT_FALL 0x40000000 +#define FB_SYNC_DATA_INVERT 0x20000000 +#define FB_SYNC_CLK_IDLE_EN 0x10000000 +#define FB_SYNC_SHARP_MODE 0x08000000 +#define FB_SYNC_SWAP_RGB 0x04000000 + +#endif