diff options
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/common/fsl_diu_fb.c | 39 | ||||
| -rw-r--r-- | board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c | 20 |
2 files changed, 25 insertions, 34 deletions
diff --git a/board/freescale/common/fsl_diu_fb.c b/board/freescale/common/fsl_diu_fb.c index 6189ec9..d459f58 100644 --- a/board/freescale/common/fsl_diu_fb.c +++ b/board/freescale/common/fsl_diu_fb.c @@ -163,8 +163,6 @@ struct diu_addr { unsigned int offset; }; -#define FSL_DIU_BASE_OFFSET 0x2C000 /* Offset of Display Interface Unit */ - /* * Modes of operation of DIU */ @@ -197,7 +195,7 @@ 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); -static u32 get_busfreq(void); +void diu_set_pixel_clock(unsigned int pixclock); int fsl_diu_init(int xres, unsigned int pixel_format, @@ -209,15 +207,11 @@ int fsl_diu_init(int xres, struct diu *hw; struct fb_info *info = &fsl_fb_info; struct fb_var_screeninfo *var = &info->var; - volatile immap_t *immap = (immap_t *)CFG_IMMR; - volatile ccsr_gur_t *gur = &immap->im_gur; - volatile unsigned int *guts_clkdvdr = &gur->clkdvdr; unsigned char *gamma_table_base; unsigned int i, j; - unsigned long speed_ccb, temp, pixval; DPRINTF("Enter fsl_diu_init\n"); - dr.diu_reg = (struct diu *) (CFG_IMMR + FSL_DIU_BASE_OFFSET); + dr.diu_reg = (struct diu *) (CFG_DIU_ADDR); hw = (struct diu *) dr.diu_reg; disable_lcdc(); @@ -336,30 +330,15 @@ int fsl_diu_init(int xres, var->vsync_len << 11 | /* PW_V */ var->lower_margin; /* FP_V */ - /* Pixel Clock configuration */ - DPRINTF("DIU: Bus Frequency = %d\n", get_busfreq()); - speed_ccb = get_busfreq(); - - DPRINTF("DIU pixclock in ps - %d\n", var->pixclock); - temp = 1; - temp *= 1000000000; - temp /= var->pixclock; - temp *= 1000; - pixval = speed_ccb / temp; - DPRINTF("DIU pixval = %lu\n", pixval); - hw->syn_pol = 0; /* SYNC SIGNALS POLARITY */ hw->thresholds = 0x00037800; /* The Thresholds */ hw->int_status = 0; /* INTERRUPT STATUS */ hw->int_mask = 0; /* INT MASK */ hw->plut = 0x01F5F666; - /* Modify PXCLK in GUTS CLKDVDR */ - DPRINTF("DIU: Current value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); - temp = *guts_clkdvdr & 0x2000FFFF; - *guts_clkdvdr = temp; /* turn off clock */ - *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16); - DPRINTF("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); + /* Pixel Clock configuration */ + DPRINTF("DIU pixclock in ps - %d\n", var->pixclock); + diu_set_pixel_clock(var->pixclock); fb_initialized = 1; @@ -466,14 +445,6 @@ static void disable_lcdc(void) } } -static u32 get_busfreq(void) -{ - u32 fs_busfreq = 0; - - fs_busfreq = get_bus_freq(0); - return fs_busfreq; -} - /* * Align to 64-bit(8-byte), 32-byte, etc. */ diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c index b70637f..4db941c 100644 --- a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c +++ b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c @@ -41,6 +41,26 @@ extern unsigned int FSL_Logo_BMP[]; static int xres, yres; +void diu_set_pixel_clock(unsigned int pixclock) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ccsr_gur_t *gur = &immap->im_gur; + volatile unsigned int *guts_clkdvdr = &gur->clkdvdr; + unsigned long speed_ccb, temp, pixval; + + speed_ccb = get_bus_freq(0); + temp = 1000000000/pixclock; + temp *= 1000; + pixval = speed_ccb / temp; + debug("DIU pixval = %lu\n", pixval); + + /* Modify PXCLK in GUTS CLKDVDR */ + debug("DIU: Current value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); + temp = *guts_clkdvdr & 0x2000FFFF; + *guts_clkdvdr = temp; /* turn off clock */ + *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16); + debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); +} void mpc8610hpcd_diu_init(void) { |