summaryrefslogtreecommitdiff
path: root/board/freescale/mpc8610hpcd
diff options
context:
space:
mode:
authorJon Loeliger <jdl@freescale.com>2008-06-06 10:48:31 -0500
committerJon Loeliger <jdl@freescale.com>2008-06-06 10:48:31 -0500
commit1a247ba7fa5fb09f56892a09a990f03ce564b3e2 (patch)
tree9dab0ef013cc6dc7883454808ecf6ba4d7a7a94e /board/freescale/mpc8610hpcd
parent2c289e320dcfb3760e99cf1d765cb067194a1202 (diff)
parent8155efbd7ae9c65564ca98affe94631d612ae088 (diff)
downloadu-boot-imx-1a247ba7fa5fb09f56892a09a990f03ce564b3e2.zip
u-boot-imx-1a247ba7fa5fb09f56892a09a990f03ce564b3e2.tar.gz
u-boot-imx-1a247ba7fa5fb09f56892a09a990f03ce564b3e2.tar.bz2
Merge commit 'wd/master'
Diffstat (limited to 'board/freescale/mpc8610hpcd')
-rw-r--r--board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c20
1 files changed, 20 insertions, 0 deletions
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)
{