summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorYork Sun <yorksun@freescale.com>2008-05-05 10:19:59 -0500
committerWolfgang Denk <wd@denx.de>2008-05-21 00:54:36 +0200
commit3b80c5f574ad7f6e1c55a68f42752b427fdf778d (patch)
treefb2e28d3be49cb3327e7339f4b871864d4755d76
parent53677ef18e25c97ac613349087c5cb33ae5a2741 (diff)
downloadu-boot-imx-3b80c5f574ad7f6e1c55a68f42752b427fdf778d.zip
u-boot-imx-3b80c5f574ad7f6e1c55a68f42752b427fdf778d.tar.gz
u-boot-imx-3b80c5f574ad7f6e1c55a68f42752b427fdf778d.tar.bz2
Move pixel clock setting to board file
The clock divider has different format in 5121 and 8610. This patch moves it to board specific code. Signed-off-by: York Sun <yorksun@freescale.com>
-rw-r--r--board/freescale/common/fsl_diu_fb.c39
-rw-r--r--board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c20
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)
{