Update the "monitor" environment variable (for Freescale chips that have a DIU display controller) to display the full video configuration, instead of just the output monitor.
The old definition of the "monitor" environment variable only determines which video port to use for output. This variable is set to a number (0, 1, or sometimes 2) to specify a DVI, LVDS, or Dual-LVDS port. The resolution is hard-coded into board-specific code. The Linux command-line arguments need to be hard-coded to the proper video definition string.
Instead, the "monitor" variable is now set to a string that indicates not only the part name, but also the resolution, color depth, and refresh rate. This string is then parsed for all needed information, and can be passed to the kernel via the 'diubootargs' environment variable.
Signed-off-by: Timur Tabi timur@freescale.com ---
This patch depends on my previous patch, "[v4] powerpc: clean up DIU macro definitions for Freescale reference boards".
README | 9 +- board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c | 68 +- board/freescale/p1022ds/diu.c | 27 +- doc/README.video | 28 + drivers/video/fsl_diu_fb.c | 980 ++++++++++++------------- include/configs/MPC8610HPCD.h | 14 +- include/configs/P1022DS.h | 12 +- include/fsl_diu_fb.h | 91 +-- 8 files changed, 586 insertions(+), 643 deletions(-) rewrite drivers/video/fsl_diu_fb.c (62%) rewrite include/fsl_diu_fb.h (60%)
diff --git a/README b/README index 9597fed..4fc35f4 100644 --- a/README +++ b/README @@ -1072,12 +1072,9 @@ The following options need to be configured: CONFIG_VIDEO_BMP_LOGO
The DIU driver will look for the 'monitor' environment variable, - and if defined, enable the DIU as a console during boot. This - variable should be set to one of these values: - - '0' Output video to the DVI connector - '1' Output video to the LVDS connector - '2' Output video to the Dual-Link LVDS connector + and if defined, enable the DIU as a console during boot. See + the documentation file README.video for a description of this + variable.
- Keyboard Support: CONFIG_KEYBOARD diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c index 81e53e7..89efa0a 100644 --- a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c +++ b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c @@ -27,6 +27,10 @@ #include <command.h> #include <asm/io.h> #include <fsl_diu_fb.h> +#include "../common/pixis.h" + +#define PX_BRDCFG0_DLINK 0x10 +#define PX_BRDCFG0_DVISEL 0x08
void diu_set_pixel_clock(unsigned int pixclock) { @@ -49,50 +53,36 @@ void diu_set_pixel_clock(unsigned int pixclock) debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); }
-int platform_diu_init(unsigned int *xres, unsigned int *yres) +int platform_diu_init(unsigned int xres, unsigned int yres) { - char *monitor_port; - int gamma_fix; - unsigned int pixel_format; - unsigned char tmp_val; - unsigned char pixis_arch; - u8 *pixis_base = (u8 *)PIXIS_BASE; + const char *monitor_port; + const char *name; + int gamma_fix = 0; + u32 pixel_format = 0x88883316; + u8 temp;
- tmp_val = in_8(pixis_base + PIXIS_BRDCFG0); - pixis_arch = in_8(pixis_base + PIXIS_VER); + temp = in_8(&pixis->brdcfg0);
monitor_port = getenv("monitor"); - if (!strncmp(monitor_port, "0", 1)) { /* 0 - DVI */ - *xres = 1280; - *yres = 1024; - if (pixis_arch == 0x01) - pixel_format = 0x88882317; - else - pixel_format = 0x88883316; - gamma_fix = 0; - out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08); - - } else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */ - *xres = 1024; - *yres = 768; - pixel_format = 0x88883316; - gamma_fix = 0; - out_8(pixis_base + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10); - - } else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */ - *xres = 1280; - *yres = 1024; - pixel_format = 0x88883316; + if (strncmp(monitor_port, "dlvds", 5) == 0) { + /* Dual link LVDS */ gamma_fix = 1; - out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xe7); - - } else { /* DVI */ - *xres = 1280; - *yres = 1024; - pixel_format = 0x88882317; - gamma_fix = 0; - out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08); + temp &= ~(PX_BRDCFG0_DLINK | PX_BRDCFG0_DVISEL); + name = "Dual-Link LVDS"; + } else if (strncmp(monitor_port, "lvds", 4) == 0) { + /* Single link LVDS */ + temp = (temp & ~PX_BRDCFG0_DVISEL) | PX_BRDCFG0_DLINK; + name = "Single-Link LVDS"; + } else { + /* DVI */ + if (in_8(&pixis->ver) == 1) /* Board version */ + pixel_format = 0x88882317; + temp |= PX_BRDCFG0_DVISEL; + name = "DVI"; }
- return fsl_diu_init(*xres, pixel_format, gamma_fix); + printf("DIU: Switching to %s monitor @ %ux%u\n", name, xres, yres); + out_8(&pixis->brdcfg0, temp); + + return fsl_diu_init(xres, pixel_format, gamma_fix); } diff --git a/board/freescale/p1022ds/diu.c b/board/freescale/p1022ds/diu.c index 8f5305c..a7144be 100644 --- a/board/freescale/p1022ds/diu.c +++ b/board/freescale/p1022ds/diu.c @@ -12,6 +12,7 @@
#include <common.h> #include <command.h> +#include <linux/ctype.h> #include <asm/io.h> #include <stdio_dev.h> #include <video_fb.h> @@ -81,10 +82,11 @@ void diu_set_pixel_clock(unsigned int pixclock) out_be32(&gur->clkdvdr, temp | 0x80000000 | ((pixval & 0x1F) << 16)); }
-int platform_diu_init(unsigned int *xres, unsigned int *yres) +int platform_diu_init(unsigned int xres, unsigned int yres) { ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - char *monitor_port; + const char *monitor_port; + const char *name; u32 pixel_format; u8 temp;
@@ -101,20 +103,23 @@ int platform_diu_init(unsigned int *xres, unsigned int *yres) temp = in_8(&pixis->brdcfg1);
monitor_port = getenv("monitor"); - if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */ - *xres = 1024; - *yres = 768; - /* Enable the DFP port, disable the DVI and the backlight */ - temp &= ~(PX_BRDCFG1_DVIEN | PX_BRDCFG1_BACKLIGHT); - temp |= PX_BRDCFG1_DFPEN; + if (strncmp(monitor_port, "lvds", 4) == 0) { + /* Single link LVDS */ + temp &= ~PX_BRDCFG1_DVIEN; + /* + * LVDS also needs backlight enabled, otherwise the display + * will be blank. + */ + temp |= (PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT); + name = "Single-Link LVDS"; } else { /* DVI */ - *xres = 1280; - *yres = 1024; /* Enable the DVI port, disable the DFP and the backlight */ temp &= ~(PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT); temp |= PX_BRDCFG1_DVIEN; + name = "DVI"; }
+ printf("DIU: Switching to %s monitor @ %ux%u\n", name, xres, yres); out_8(&pixis->brdcfg1, temp);
/* @@ -136,7 +141,7 @@ int platform_diu_init(unsigned int *xres, unsigned int *yres) clrsetbits_be32(&gur->pmuxcr, PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_DIU); pmuxcr = in_be32(&gur->pmuxcr);
- return fsl_diu_init(*xres, pixel_format, 0); + return fsl_diu_init(xres, pixel_format, 0); }
#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS diff --git a/doc/README.video b/doc/README.video index 34e199c..fe598c6 100644 --- a/doc/README.video +++ b/doc/README.video @@ -28,3 +28,31 @@ The driver has been tested with the following configurations:
- MPC823FADS with AD7176 on a PAL TV (YCbYCr) - arsenio@tin.it - GENIETV with AD7177 on a PAL TV (YCbYCr) - arsenio@tin.it + + +Freescale DIU video controller +=============================== + +This controller is found on some Freescale PowerPC SOCs, such as the MPC8610 +and the P1022. Currently, setting the 'stdout' environment variable to 'video' +will *not* work with this controller. Instead, the 'monitor' environment +variable can be used to enable and configure the driver. + + monitor=<port>,<xres>x<yres>-<depth>@<freq> + +Example: monitor=dvi,1280x1024-32@60 + + <port> The monitor port, usually either "lvds" or "dvi". This + is a board-specific value. + + <xres> The X resolution (in pixels) to use. + + <yres> The Y resolution (in pixels) to use. + + <depth> The color depth (in bits) to use. + + <freq> The frequency (in Hz) to use. + +The "diubootargs" environment variable is also set to the string +"video=fslfb:<xres>x<yres>-<depth>@<freq>,monitor=<port> tty0". This variable +allows the string to be passed to the Linux kernel via the kernel command line. diff --git a/drivers/video/fsl_diu_fb.c b/drivers/video/fsl_diu_fb.c dissimilarity index 62% index 35ed938..d3c31ea 100644 --- a/drivers/video/fsl_diu_fb.c +++ b/drivers/video/fsl_diu_fb.c @@ -1,513 +1,467 @@ -/* - * Copyright 2007, 2010 Freescale Semiconductor, Inc. - * York Sun yorksun@freescale.com - * - * FSL DIU Framebuffer driver - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#include <common.h> -#include <i2c.h> -#include <malloc.h> -#include <asm/io.h> - -#include <fsl_diu_fb.h> - -struct fb_videomode { - const char *name; /* optional */ - unsigned int refresh; /* optional */ - unsigned int xres; - unsigned int yres; - unsigned int pixclock; - unsigned int left_margin; - unsigned int right_margin; - unsigned int upper_margin; - unsigned int lower_margin; - unsigned int hsync_len; - unsigned int vsync_len; - unsigned int sync; - unsigned int vmode; - unsigned int flag; -}; - -#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */ -#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */ -#define FB_VMODE_NONINTERLACED 0 /* non interlaced */ - -/* This setting is used for the ifm pdm360ng with PRIMEVIEW PM070WL3 */ -static struct fb_videomode fsl_diu_mode_800 = { - .refresh = 60, - .xres = 800, - .yres = 480, - .pixclock = 31250, - .left_margin = 86, - .right_margin = 42, - .upper_margin = 33, - .lower_margin = 10, - .hsync_len = 128, - .vsync_len = 2, - .sync = 0, - .vmode = FB_VMODE_NONINTERLACED -}; - -/* - * These parameters give default parameters - * for video output 1024x768, - * FIXME - change timing to proper amounts - * hsync 31.5kHz, vsync 60Hz - */ -static struct fb_videomode fsl_diu_mode_1024 = { - .refresh = 60, - .xres = 1024, - .yres = 768, - .pixclock = 15385, - .left_margin = 160, - .right_margin = 24, - .upper_margin = 29, - .lower_margin = 3, - .hsync_len = 136, - .vsync_len = 6, - .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - .vmode = FB_VMODE_NONINTERLACED -}; - -static struct fb_videomode fsl_diu_mode_1280 = { - .name = "1280x1024-60", - .refresh = 60, - .xres = 1280, - .yres = 1024, - .pixclock = 9375, - .left_margin = 38, - .right_margin = 128, - .upper_margin = 2, - .lower_margin = 7, - .hsync_len = 216, - .vsync_len = 37, - .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - .vmode = FB_VMODE_NONINTERLACED -}; - -/* - * These are the fields of area descriptor(in DDR memory) for every plane - */ -struct diu_ad { - /* Word 0(32-bit) in DDR memory */ - unsigned int pix_fmt; /* hard coding pixel format */ - /* Word 1(32-bit) in DDR memory */ - unsigned int addr; - /* Word 2(32-bit) in DDR memory */ - unsigned int src_size_g_alpha; - /* Word 3(32-bit) in DDR memory */ - unsigned int aoi_size; - /* Word 4(32-bit) in DDR memory */ - unsigned int offset_xyi; - /* Word 5(32-bit) in DDR memory */ - unsigned int offset_xyd; - /* Word 6(32-bit) in DDR memory */ - unsigned int ckmax_r:8; - unsigned int ckmax_g:8; - unsigned int ckmax_b:8; - unsigned int res9:8; - /* Word 7(32-bit) in DDR memory */ - unsigned int ckmin_r:8; - unsigned int ckmin_g:8; - unsigned int ckmin_b:8; - unsigned int res10:8; - /* Word 8(32-bit) in DDR memory */ - unsigned int next_ad; - /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */ - unsigned int res1; - unsigned int res2; - unsigned int res3; -}__attribute__ ((packed)); - -/* - * DIU register map - */ -struct diu { - unsigned int desc[3]; - unsigned int gamma; - unsigned int pallete; - unsigned int cursor; - unsigned int curs_pos; - unsigned int diu_mode; - unsigned int bgnd; - unsigned int bgnd_wb; - unsigned int disp_size; - unsigned int wb_size; - unsigned int wb_mem_addr; - unsigned int hsyn_para; - unsigned int vsyn_para; - unsigned int syn_pol; - unsigned int thresholds; - unsigned int int_status; - unsigned int int_mask; - unsigned int colorbar[8]; - unsigned int filling; - unsigned int plut; -} __attribute__ ((packed)); - -struct diu_hw { - struct diu *diu_reg; - volatile unsigned int mode; /* DIU operation mode */ -}; - -struct diu_addr { - unsigned char * paddr; /* Virtual address */ - unsigned int offset; -}; - -/* - * Modes of operation of DIU - */ -#define MFB_MODE0 0 /* DIU off */ -#define MFB_MODE1 1 /* All three planes output to display */ -#define MFB_MODE2 2 /* Plane 1 to display, - * planes 2+3 written back to memory */ -#define MFB_MODE3 3 /* All three planes written back to memory */ -#define MFB_MODE4 4 /* Color bar generation */ - -#define MAX_CURS 32 - -static struct fb_info fsl_fb_info; -static struct diu_addr gamma, cursor; -static struct diu_ad fsl_diu_fb_ad __attribute__ ((aligned(32))); -static struct diu_ad dummy_ad __attribute__ ((aligned(32))); -static unsigned char *dummy_fb; -static struct diu_hw dr = { - .mode = MFB_MODE1, -}; - -int fb_enabled = 0; -int fb_initialized = 0; -const int default_xres = 1280; -const int default_pixel_format = 0x88882317; - -static int map_video_memory(struct fb_info *info, unsigned long bytes_align); -static void enable_lcdc(void); -static void disable_lcdc(void); -static int fsl_diu_enable_panel(struct fb_info *info); -static int fsl_diu_disable_panel(struct fb_info *info); -static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align); -void diu_set_pixel_clock(unsigned int pixclock); - -int fsl_diu_init(int xres, unsigned int pixel_format, int gamma_fix) -{ - struct fb_videomode *fsl_diu_mode_db; - struct diu_ad *ad = &fsl_diu_fb_ad; - struct diu *hw; - struct fb_info *info = &fsl_fb_info; - struct fb_var_screeninfo *var = &info->var; - unsigned char *gamma_table_base; - unsigned int i, j; - - debug("Enter fsl_diu_init\n"); - dr.diu_reg = (struct diu *) (CONFIG_SYS_DIU_ADDR); - hw = (struct diu *) dr.diu_reg; - - disable_lcdc(); - - switch (xres) { - case 800: - fsl_diu_mode_db = &fsl_diu_mode_800; - break; - case 1280: - fsl_diu_mode_db = &fsl_diu_mode_1280; - break; - default: - fsl_diu_mode_db = &fsl_diu_mode_1024; - } - - if (0 == fb_initialized) { - allocate_buf(&gamma, 768, 32); - debug("gamma is allocated @ 0x%x\n", - (unsigned int)gamma.paddr); - allocate_buf(&cursor, MAX_CURS * MAX_CURS * 2, 32); - debug("curosr is allocated @ 0x%x\n", - (unsigned int)cursor.paddr); - - /* create a dummy fb and dummy ad */ - dummy_fb = malloc(64); - if (NULL == dummy_fb) { - printf("Cannot allocate dummy fb\n"); - return -1; - } - dummy_ad.addr = cpu_to_le32((unsigned int)dummy_fb); - dummy_ad.pix_fmt = 0x88882317; - dummy_ad.src_size_g_alpha = 0x04400000; /* alpha = 0 */ - dummy_ad.aoi_size = 0x02000400; - dummy_ad.offset_xyi = 0; - dummy_ad.offset_xyd = 0; - dummy_ad.next_ad = 0; - /* Memory allocation for framebuffer */ - if (map_video_memory(info, 32)) { - printf("Unable to allocate fb memory 1\n"); - return -1; - } - } - - memset(info->screen_base, 0, info->smem_len); - - out_be32(&dr.diu_reg->desc[0], (int)&dummy_ad); - out_be32(&dr.diu_reg->desc[1], (int)&dummy_ad); - out_be32(&dr.diu_reg->desc[2], (int)&dummy_ad); - debug("dummy dr.diu_reg->desc[0] = 0x%x\n", dr.diu_reg->desc[0]); - debug("dummy desc[0] = 0x%x\n", hw->desc[0]); - - /* read mode info */ - var->xres = fsl_diu_mode_db->xres; - var->yres = fsl_diu_mode_db->yres; - var->bits_per_pixel = 32; - var->pixclock = fsl_diu_mode_db->pixclock; - var->left_margin = fsl_diu_mode_db->left_margin; - var->right_margin = fsl_diu_mode_db->right_margin; - var->upper_margin = fsl_diu_mode_db->upper_margin; - var->lower_margin = fsl_diu_mode_db->lower_margin; - var->hsync_len = fsl_diu_mode_db->hsync_len; - var->vsync_len = fsl_diu_mode_db->vsync_len; - var->sync = fsl_diu_mode_db->sync; - var->vmode = fsl_diu_mode_db->vmode; - info->line_length = var->xres * var->bits_per_pixel / 8; - - ad->pix_fmt = pixel_format; - ad->addr = cpu_to_le32((unsigned int)info->screen_base); - ad->src_size_g_alpha - = cpu_to_le32((var->yres << 12) | var->xres); - /* fix me. AOI should not be greater than display size */ - ad->aoi_size = cpu_to_le32(( var->yres << 16) | var->xres); - ad->offset_xyi = 0; - ad->offset_xyd = 0; - - /* Disable chroma keying function */ - ad->ckmax_r = 0; - ad->ckmax_g = 0; - ad->ckmax_b = 0; - - ad->ckmin_r = 255; - ad->ckmin_g = 255; - ad->ckmin_b = 255; - - gamma_table_base = gamma.paddr; - debug("gamma_table_base is allocated @ 0x%x\n", - (unsigned int)gamma_table_base); - - /* Prep for DIU init - gamma table */ - - for (i = 0; i <= 2; i++) - for (j = 0; j <= 255; j++) - *gamma_table_base++ = j; - - if (gamma_fix == 1) { /* fix the gamma */ - debug("Fix gamma table\n"); - gamma_table_base = gamma.paddr; - for (i = 0; i < 256*3; i++) { - gamma_table_base[i] = (gamma_table_base[i] << 2) - | ((gamma_table_base[i] >> 6) & 0x03); - } - } - - debug("update-lcdc: HW - %p\n Disabling DIU\n", hw); - - /* Program DIU registers */ - - out_be32(&hw->gamma, (int)gamma.paddr); - out_be32(&hw->cursor, (int)cursor.paddr); - out_be32(&hw->bgnd, 0x007F7F7F); - out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ - out_be32(&hw->disp_size, var->yres << 16 | var->xres); /* DISP SIZE */ - out_be32(&hw->wb_size, 0); /* WB SIZE */ - out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ - out_be32(&hw->hsyn_para, var->left_margin << 22 | /* BP_H */ - var->hsync_len << 11 | /* PW_H */ - var->right_margin); /* FP_H */ - - out_be32(&hw->vsyn_para, var->upper_margin << 22 | /* BP_V */ - var->vsync_len << 11 | /* PW_V */ - var->lower_margin); /* FP_V */ - - out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ - out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ - out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ - out_be32(&hw->int_mask, 0); /* INT MASK */ - out_be32(&hw->plut, 0x01F5F666); - /* Pixel Clock configuration */ - debug("DIU pixclock in ps - %d\n", var->pixclock); - diu_set_pixel_clock(var->pixclock); - - fb_initialized = 1; - - /* Enable the DIU */ - fsl_diu_enable_panel(info); - enable_lcdc(); - - return 0; -} - -char *fsl_fb_open(struct fb_info **info) -{ - *info = &fsl_fb_info; - return fsl_fb_info.screen_base; -} - -void fsl_diu_close(void) -{ - struct fb_info *info = &fsl_fb_info; - fsl_diu_disable_panel(info); -} - -static int fsl_diu_enable_panel(struct fb_info *info) -{ - struct diu *hw = dr.diu_reg; - struct diu_ad *ad = &fsl_diu_fb_ad; - - debug("Entered: enable_panel\n"); - if (in_be32(&hw->desc[0]) != (unsigned)ad) - out_be32(&hw->desc[0], (unsigned)ad); - debug("desc[0] = 0x%x\n", hw->desc[0]); - return 0; -} - -static int fsl_diu_disable_panel(struct fb_info *info) -{ - struct diu *hw = dr.diu_reg; - - debug("Entered: disable_panel\n"); - if (in_be32(&hw->desc[0]) != (unsigned)&dummy_ad) - out_be32(&hw->desc[0], (unsigned)&dummy_ad); - return 0; -} - -static int map_video_memory(struct fb_info *info, unsigned long bytes_align) -{ - unsigned long offset; - unsigned long mask; - - debug("Entered: map_video_memory\n"); - /* allocate maximum 1280*1024 with 32bpp */ - info->smem_len = 1280 * 4 *1024 + bytes_align; - debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->smem_len); - info->screen_base = malloc(info->smem_len); - if (info->screen_base == NULL) { - printf("Unable to allocate fb memory\n"); - return -1; - } - info->smem_start = (unsigned int) info->screen_base; - mask = bytes_align - 1; - offset = (unsigned long)info->screen_base & mask; - if (offset) { - info->screen_base += (bytes_align - offset); - info->smem_len = info->smem_len - (bytes_align - offset); - } else - info->smem_len = info->smem_len - bytes_align; - - info->screen_size = info->smem_len; - - debug("Allocated fb @ 0x%08lx, size=%d.\n", - info->smem_start, info->smem_len); - - return 0; -} - -static void enable_lcdc(void) -{ - struct diu *hw = dr.diu_reg; - - debug("Entered: enable_lcdc, fb_enabled = %d\n", fb_enabled); - if (!fb_enabled) { - out_be32(&hw->diu_mode, dr.mode); - fb_enabled++; - } - debug("diu_mode = %d\n", hw->diu_mode); -} - -static void disable_lcdc(void) -{ - struct diu *hw = dr.diu_reg; - - debug("Entered: disable_lcdc, fb_enabled = %d\n", fb_enabled); - if (fb_enabled) { - out_be32(&hw->diu_mode, 0); - fb_enabled = 0; - } -} - -/* - * Align to 64-bit(8-byte), 32-byte, etc. - */ -static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align) -{ - u32 offset, ssize; - u32 mask; - - debug("Entered: allocate_buf\n"); - ssize = size + bytes_align; - buf->paddr = malloc(ssize); - if (!buf->paddr) - return -1; - - memset(buf->paddr, 0, ssize); - mask = bytes_align - 1; - offset = (u32)buf->paddr & mask; - if (offset) { - buf->offset = bytes_align - offset; - buf->paddr = (unsigned char *) ((u32)buf->paddr + offset); - } else - buf->offset = 0; - return 0; -} - -#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) -#include <stdio_dev.h> -#include <video_fb.h> -/* - * The Graphic Device - */ -static GraphicDevice ctfb; - -void *video_hw_init(void) -{ - struct fb_info *info; - - if (platform_diu_init(&ctfb.winSizeX, &ctfb.winSizeY) < 0) - return NULL; - - /* fill in Graphic device struct */ - sprintf(ctfb.modeIdent, "%ix%ix%i %ikHz %iHz", - ctfb.winSizeX, ctfb.winSizeY, 32, 64, 60); - - ctfb.frameAdrs = (unsigned int)fsl_fb_open(&info); - ctfb.plnSizeX = ctfb.winSizeX; - ctfb.plnSizeY = ctfb.winSizeY; - - ctfb.gdfBytesPP = 4; - ctfb.gdfIndex = GDF_32BIT_X888RGB; - - ctfb.isaBase = 0; - ctfb.pciBase = 0; - ctfb.memSize = info->screen_size; - - /* Cursor Start Address */ - ctfb.dprBase = 0; - ctfb.vprBase = 0; - ctfb.cprBase = 0; - - return &ctfb; -} -#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */ +/* + * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc. + * York Sun yorksun@freescale.com + * + * FSL DIU Framebuffer driver + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#include <common.h> +#include <malloc.h> +#include <asm/io.h> +#include <linux/ctype.h> + +#include <video_fb.h> +#include <fsl_diu_fb.h> + +struct fb_var_screeninfo { + unsigned int xres; /* visible resolution */ + unsigned int yres; + + unsigned int bits_per_pixel; /* guess what */ + + /* Timing: All values in pixclocks, except pixclock (of course) */ + unsigned int pixclock; /* pixel clock in ps (pico seconds) */ + unsigned int left_margin; /* time from sync to picture */ + unsigned int right_margin; /* time from picture to sync */ + unsigned int upper_margin; /* time from sync to picture */ + unsigned int lower_margin; + unsigned int hsync_len; /* length of horizontal sync */ + unsigned int vsync_len; /* length of vertical sync */ + unsigned int sync; /* see FB_SYNC_* */ + unsigned int vmode; /* see FB_VMODE_* */ + unsigned int rotate; /* angle we rotate counter clockwise */ +}; + +struct fb_info { + struct fb_var_screeninfo var; /* Current var */ + unsigned int smem_len; /* Length of frame buffer mem */ + unsigned int type; /* see FB_TYPE_* */ + unsigned int line_length; /* length of a line in bytes */ + + void *screen_base; + unsigned long screen_size; +}; + +struct fb_videomode { + const char *name; /* optional */ + unsigned int refresh; /* optional */ + unsigned int xres; + unsigned int yres; + unsigned int pixclock; + unsigned int left_margin; + unsigned int right_margin; + unsigned int upper_margin; + unsigned int lower_margin; + unsigned int hsync_len; + unsigned int vsync_len; + unsigned int sync; + unsigned int vmode; + unsigned int flag; +}; + +#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */ +#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */ +#define FB_VMODE_NONINTERLACED 0 /* non interlaced */ + +/* This setting is used for the ifm pdm360ng with PRIMEVIEW PM070WL3 */ +static struct fb_videomode fsl_diu_mode_800 = { + .name = "800x600-60", + .refresh = 60, + .xres = 800, + .yres = 480, + .pixclock = 31250, + .left_margin = 86, + .right_margin = 42, + .upper_margin = 33, + .lower_margin = 10, + .hsync_len = 128, + .vsync_len = 2, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED +}; + +/* + * These parameters give default parameters + * for video output 1024x768, + * FIXME - change timing to proper amounts + * hsync 31.5kHz, vsync 60Hz + */ +static struct fb_videomode fsl_diu_mode_1024 = { + .name = "1024x768-60", + .refresh = 60, + .xres = 1024, + .yres = 768, + .pixclock = 15385, + .left_margin = 160, + .right_margin = 24, + .upper_margin = 29, + .lower_margin = 3, + .hsync_len = 136, + .vsync_len = 6, + .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED +}; + +static struct fb_videomode fsl_diu_mode_1280 = { + .name = "1280x1024-60", + .refresh = 60, + .xres = 1280, + .yres = 1024, + .pixclock = 9375, + .left_margin = 38, + .right_margin = 128, + .upper_margin = 2, + .lower_margin = 7, + .hsync_len = 216, + .vsync_len = 37, + .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED +}; + +/* + * These are the fields of area descriptor(in DDR memory) for every plane + */ +struct diu_ad { + /* Word 0(32-bit) in DDR memory */ + __le32 pix_fmt; /* hard coding pixel format */ + /* Word 1(32-bit) in DDR memory */ + __le32 addr; + /* Word 2(32-bit) in DDR memory */ + __le32 src_size_g_alpha; + /* Word 3(32-bit) in DDR memory */ + __le32 aoi_size; + /* Word 4(32-bit) in DDR memory */ + __le32 offset_xyi; + /* Word 5(32-bit) in DDR memory */ + __le32 offset_xyd; + /* Word 6(32-bit) in DDR memory */ + __le32 ckmax_r:8; + __le32 ckmax_g:8; + __le32 ckmax_b:8; + __le32 res9:8; + /* Word 7(32-bit) in DDR memory */ + __le32 ckmin_r:8; + __le32 ckmin_g:8; + __le32 ckmin_b:8; + __le32 res10:8; + /* Word 8(32-bit) in DDR memory */ + __le32 next_ad; + /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */ + __le32 res[3]; +}__attribute__ ((packed)); + +/* + * DIU register map + */ +struct diu { + __be32 desc[3]; + __be32 gamma; + __be32 pallete; + __be32 cursor; + __be32 curs_pos; + __be32 diu_mode; + __be32 bgnd; + __be32 bgnd_wb; + __be32 disp_size; + __be32 wb_size; + __be32 wb_mem_addr; + __be32 hsyn_para; + __be32 vsyn_para; + __be32 syn_pol; + __be32 thresholds; + __be32 int_status; + __be32 int_mask; + __be32 colorbar[8]; + __be32 filling; + __be32 plut; +} __attribute__ ((packed)); + +struct diu_addr { + void *vaddr; /* Virtual address */ + u32 paddr; /* 32-bit physical address */ + unsigned int offset; /* Alignment offset */ +}; + +static struct fb_info info; + +/* + * Align to 64-bit(8-byte), 32-byte, etc. + */ +static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align) +{ + u32 offset, ssize; + u32 mask; + + ssize = size + bytes_align; + buf->vaddr = malloc(ssize); + if (!buf->vaddr) + return -1; + + memset(buf->vaddr, 0, ssize); + mask = bytes_align - 1; + offset = (u32)buf->vaddr & mask; + if (offset) { + buf->offset = bytes_align - offset; + buf->vaddr += offset; + } else + buf->offset = 0; + + buf->paddr = virt_to_phys(buf->vaddr); + return 0; +} + +/* + * Allocate a framebuffer and an Area Descriptor that points to it. Both + * are created in the same memory block. The Area Descriptor is updated to + * point to the framebuffer memory. Memory is aligned as needed. + */ +static struct diu_ad *allocate_fb(unsigned int xres, unsigned int yres, + unsigned int depth, void **fb) +{ + unsigned long size = xres * yres * depth; + struct diu_addr addr; + struct diu_ad *ad; + size_t ad_size = roundup(sizeof(struct diu_ad), 32); + + /* + * Allocate a memory block that holds the Area Descriptor and the + * frame buffer right behind it. To keep the code simple, everything + * is aligned on a 32-byte address. + */ + if (allocate_buf(&addr, ad_size + size, 32) < 0) + return NULL; + + ad = addr.vaddr; + ad->addr = cpu_to_le32(addr.paddr + ad_size); + ad->aoi_size = cpu_to_le32((yres << 16) | xres); + ad->src_size_g_alpha = cpu_to_le32((yres << 12) | xres); + ad->offset_xyi = 0; + ad->offset_xyd = 0; + + if (fb) + *fb = addr.vaddr + ad_size; + + return ad; +} + +int fsl_diu_init(int xres, u32 pixel_format, int gamma_fix) +{ + struct fb_videomode *fsl_diu_mode_db; + struct diu_ad *ad; + struct diu *hw = (struct diu *)CONFIG_SYS_DIU_ADDR; + u8 *gamma_table_base; + unsigned int i, j; + struct diu_ad *dummy_ad; + struct diu_addr gamma; + + switch (xres) { + case 800: + fsl_diu_mode_db = &fsl_diu_mode_800; + break; + case 1280: + fsl_diu_mode_db = &fsl_diu_mode_1280; + break; + default: + fsl_diu_mode_db = &fsl_diu_mode_1024; + } + + /* The AD struct for the dummy framebuffer and the FB itself */ + dummy_ad = allocate_fb(2, 4, 4, NULL); + if (!dummy_ad) { + printf("DIU: Out of memory\n"); + return -1; + } + dummy_ad->pix_fmt = 0x88883316; + + /* read mode info */ + info.var.xres = fsl_diu_mode_db->xres; + info.var.yres = fsl_diu_mode_db->yres; + info.var.bits_per_pixel = 32; + info.var.pixclock = fsl_diu_mode_db->pixclock; + info.var.left_margin = fsl_diu_mode_db->left_margin; + info.var.right_margin = fsl_diu_mode_db->right_margin; + info.var.upper_margin = fsl_diu_mode_db->upper_margin; + info.var.lower_margin = fsl_diu_mode_db->lower_margin; + info.var.hsync_len = fsl_diu_mode_db->hsync_len; + info.var.vsync_len = fsl_diu_mode_db->vsync_len; + info.var.sync = fsl_diu_mode_db->sync; + info.var.vmode = fsl_diu_mode_db->vmode; + info.line_length = info.var.xres * info.var.bits_per_pixel / 8; + + /* Memory allocation for framebuffer */ + info.smem_len = + info.var.xres * info.var.yres * (info.var.bits_per_pixel / 8); + ad = allocate_fb(info.var.xres, info.var.yres, + info.var.bits_per_pixel / 8, &info.screen_base); + if (!ad) { + printf("DIU: Out of memory\n"); + return -1; + } + + ad->pix_fmt = pixel_format; + + /* Disable chroma keying function */ + ad->ckmax_r = 0; + ad->ckmax_g = 0; + ad->ckmax_b = 0; + + ad->ckmin_r = 255; + ad->ckmin_g = 255; + ad->ckmin_b = 255; + + /* Initialize the gamma table */ + if (allocate_buf(&gamma, 256 * 3, 32) < 0) { + printf("DIU: Out of memory\n"); + return -1; + } + gamma_table_base = gamma.vaddr; + for (i = 0; i <= 2; i++) + for (j = 0; j < 256; j++) + *gamma_table_base++ = j; + + if (gamma_fix == 1) { /* fix the gamma */ + gamma_table_base = gamma.vaddr; + for (i = 0; i < 256 * 3; i++) { + gamma_table_base[i] = (gamma_table_base[i] << 2) + | ((gamma_table_base[i] >> 6) & 0x03); + } + } + + /* Program DIU registers */ + out_be32(&hw->diu_mode, 0); /* Temporarily disable the DIU */ + + out_be32(&hw->gamma, gamma.paddr); + out_be32(&hw->bgnd, 0x007F7F7F); + out_be32(&hw->bgnd_wb, 0); + out_be32(&hw->disp_size, info.var.yres << 16 | info.var.xres); + out_be32(&hw->wb_size, 0); + out_be32(&hw->wb_mem_addr, 0); + out_be32(&hw->hsyn_para, info.var.left_margin << 22 | + info.var.hsync_len << 11 | + info.var.right_margin); + + out_be32(&hw->vsyn_para, info.var.upper_margin << 22 | + info.var.vsync_len << 11 | + info.var.lower_margin); + + out_be32(&hw->syn_pol, 0); + out_be32(&hw->thresholds, 0x00037800); + out_be32(&hw->int_status, 0); + out_be32(&hw->int_mask, 0); + out_be32(&hw->plut, 0x01F5F666); + /* Pixel Clock configuration */ + diu_set_pixel_clock(info.var.pixclock); + + /* Set the frame buffers */ + out_be32(&hw->desc[0], virt_to_phys(ad)); + out_be32(&hw->desc[1], virt_to_phys(dummy_ad)); + out_be32(&hw->desc[2], virt_to_phys(dummy_ad)); + + /* Enable the DIU, set display to all three planes */ + out_be32(&hw->diu_mode, 1); + + return 0; +} + +/* + * Query the 'monitor' environment variable to determine the resolution to use + * + * Example: "monitor=dvi,1280x1024-32@60". See doc/README.video for more + * information on how to set the variable. + * + * Returns 1 if valid values were found, 0 otherwise + */ +int diu_get_resolution(unsigned int *xres, unsigned int *yres) +{ + const char *p; + char *p2 = NULL; + unsigned long x, y = 0; + + p = getenv("monitor"); + if (!p) { + /* 'monitor' variable is not defined, so don't enable video */ + return 0; + } + + /* Skip over the monitor name */ + while (*p && !isdigit(*p)) + p++; + + x = simple_strtoul(p, &p2, 10); + if (x) { + y = simple_strtoul(p2 + 1, NULL, 10); + if (y) { + *xres = x; + *yres = y; + return 1; + } + } + + /* + * On older U-Boot installations, the 'monitor' environment variable + * only contains the port, but this is no longer supported. + */ + return 0; +} + +void *video_hw_init(void) +{ + static GraphicDevice ctfb; + char *p; + char temp[64], temp2[64]; + + if (!diu_get_resolution(&ctfb.winSizeX, &ctfb.winSizeY)) + return NULL; + + if (platform_diu_init(ctfb.winSizeX, ctfb.winSizeY) < 0) + return NULL; + + /* fill in Graphic device struct */ + sprintf(ctfb.modeIdent, "%ix%ix%i %ikHz %iHz", + ctfb.winSizeX, ctfb.winSizeY, 32, 64, 60); + + ctfb.frameAdrs = (unsigned int)info.screen_base; + ctfb.plnSizeX = ctfb.winSizeX; + ctfb.plnSizeY = ctfb.winSizeY; + + ctfb.gdfBytesPP = 4; + ctfb.gdfIndex = GDF_32BIT_X888RGB; + + ctfb.isaBase = 0; + ctfb.pciBase = 0; + ctfb.memSize = info.screen_size; + + /* Cursor Start Address */ + ctfb.dprBase = 0; + ctfb.vprBase = 0; + ctfb.cprBase = 0; + + /* Set the 'diubootargs' environment variable */ + strcpy(temp, getenv("monitor")); + p = strchr(temp, ','); + if (p) { + *p = 0; + sprintf(temp2, "video=fslfb:%s,monitor=%s tty0", p + 1, temp); + setenv("diubootargs", temp2); + } + + return &ctfb; +} diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h index de01c31..f2d47e0 100644 --- a/include/configs/MPC8610HPCD.h +++ b/include/configs/MPC8610HPCD.h @@ -23,6 +23,8 @@
/* video */ +#define CONFIG_FSL_DIU_FB + #ifdef CONFIG_FSL_DIU_FB #define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x2c000) #define CONFIG_VIDEO @@ -625,8 +627,6 @@ "diuregs=md e002c000 1d\0" \ "dium=mw e002c01c\0" \ "diuerr=md e002c014 1\0" \ - "othbootargs=diufb=15M video=fslfb:1280x1024-32@60,monitor=0 debug\0" \ - "monitor=0-DVI\0" \ "pmregs=md e00e1000 2b\0" \ "lawregs=md e0000c08 4b\0" \ "lbcregs=md e0005000 36\0" \ @@ -646,23 +646,21 @@ "ramdiskfile=8610hpcd/ramdisk.uboot\0" \ "fdtaddr=c00000\0" \ "fdtfile=8610hpcd/mpc8610_hpcd.dtb\0" \ - "bdev=sda3\0" \ - "othbootargs=diufb=15M video=fslfb:1280x1024-32@60,monitor=0\0"\ - "monitor=0-DVI\0" + "bdev=sda3\0" #endif
#define CONFIG_NFSBOOTCOMMAND \ "setenv bootargs root=/dev/nfs rw " \ "nfsroot=$serverip:$rootpath " \ "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ "bootm $loadaddr - $fdtaddr"
#define CONFIG_RAMBOOTCOMMAND \ "setenv bootargs root=/dev/ram rw " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $ramdiskaddr $ramdiskfile;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ @@ -670,7 +668,7 @@
#define CONFIG_BOOTCOMMAND \ "setenv bootargs root=/dev/$bdev rw " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ "bootm $loadaddr - $fdtaddr" diff --git a/include/configs/P1022DS.h b/include/configs/P1022DS.h index ed2bada..29380a1 100644 --- a/include/configs/P1022DS.h +++ b/include/configs/P1022DS.h @@ -185,6 +185,8 @@ #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
/* Video */ +#define CONFIG_FSL_DIU_FB + #ifdef CONFIG_FSL_DIU_FB #define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x10000) #define CONFIG_VIDEO @@ -445,13 +447,11 @@ "bdev=sda3\0" \ "diuregs=md e002c000 1d\0" \ "dium=mw e002c01c\0" \ - "diuerr=md e002c014 1\0" \ - "othbootargs=diufb=15M video=fslfb:1280x1024-32@60,monitor=0 tty0\0" \ - "monitor=0-DVI\0" + "diuerr=md e002c014 1\0"
#define CONFIG_HDBOOT \ "setenv bootargs root=/dev/$bdev rw " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ "bootm $loadaddr - $fdtaddr" @@ -460,14 +460,14 @@ "setenv bootargs root=/dev/nfs rw " \ "nfsroot=$serverip:$rootpath " \ "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ "bootm $loadaddr - $fdtaddr"
#define CONFIG_RAMBOOTCOMMAND \ "setenv bootargs root=/dev/ram rw " \ - "console=$consoledev,$baudrate $othbootargs;" \ + "console=$consoledev,$baudrate $diubootargs $othbootargs;" \ "tftp $ramdiskaddr $ramdiskfile;" \ "tftp $loadaddr $bootfile;" \ "tftp $fdtaddr $fdtfile;" \ diff --git a/include/fsl_diu_fb.h b/include/fsl_diu_fb.h dissimilarity index 60% index 87443e1..09eb6d6 100644 --- a/include/fsl_diu_fb.h +++ b/include/fsl_diu_fb.h @@ -1,60 +1,31 @@ -/* - * Copyright 2007 Freescale Semiconductor, Inc. - * York Sun yorksun@freescale.com - * - * FSL DIU Framebuffer driver - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -struct fb_var_screeninfo { - unsigned int xres; /* visible resolution */ - unsigned int yres; - - unsigned int bits_per_pixel; /* guess what */ - - /* Timing: All values in pixclocks, except pixclock (of course) */ - unsigned int pixclock; /* pixel clock in ps (pico seconds) */ - unsigned int left_margin; /* time from sync to picture */ - unsigned int right_margin; /* time from picture to sync */ - unsigned int upper_margin; /* time from sync to picture */ - unsigned int lower_margin; - unsigned int hsync_len; /* length of horizontal sync */ - unsigned int vsync_len; /* length of vertical sync */ - unsigned int sync; /* see FB_SYNC_* */ - unsigned int vmode; /* see FB_VMODE_* */ - unsigned int rotate; /* angle we rotate counter clockwise */ -}; - -struct fb_info { - struct fb_var_screeninfo var; /* Current var */ - unsigned long smem_start; /* Start of frame buffer mem */ - /* (physical address) */ - unsigned int smem_len; /* Length of frame buffer mem */ - unsigned int type; /* see FB_TYPE_* */ - unsigned int line_length; /* length of a line in bytes */ - - char *screen_base; - unsigned long screen_size; -}; - - -extern char *fsl_fb_open(struct fb_info **info); -int fsl_diu_init(int xres, unsigned int pixel_format, int gamma_fix); -int platform_diu_init(unsigned int *xres, unsigned int *yres); +/* + * Copyright 2007, 2011 Freescale Semiconductor, Inc. + * York Sun yorksun@freescale.com + * + * FSL DIU Framebuffer driver + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +int fsl_diu_init(int xres, u32 pixel_format, int gamma_fix); +int diu_get_resolution(unsigned int *xres, unsigned int *yres); + +/* Prototypes for external board-specific functions */ +int platform_diu_init(unsigned int xres, unsigned int yres); +void diu_set_pixel_clock(unsigned int pixclock);