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path: root/drivers/video/amba-clcd.c
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Diffstat (limited to 'drivers/video/amba-clcd.c')
-rw-r--r--drivers/video/amba-clcd.c31
1 files changed, 24 insertions, 7 deletions
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index a21efcd10b78..afe21e6eb544 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -65,16 +65,16 @@ static void clcdfb_disable(struct clcd_fb *fb)
if (fb->board->disable)
fb->board->disable(fb);
- val = readl(fb->regs + CLCD_CNTL);
+ val = readl(fb->regs + fb->off_cntl);
if (val & CNTL_LCDPWR) {
val &= ~CNTL_LCDPWR;
- writel(val, fb->regs + CLCD_CNTL);
+ writel(val, fb->regs + fb->off_cntl);
clcdfb_sleep(20);
}
if (val & CNTL_LCDEN) {
val &= ~CNTL_LCDEN;
- writel(val, fb->regs + CLCD_CNTL);
+ writel(val, fb->regs + fb->off_cntl);
}
/*
@@ -94,7 +94,7 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
* Bring up by first enabling..
*/
cntl |= CNTL_LCDEN;
- writel(cntl, fb->regs + CLCD_CNTL);
+ writel(cntl, fb->regs + fb->off_cntl);
clcdfb_sleep(20);
@@ -102,7 +102,7 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
* and now apply power.
*/
cntl |= CNTL_LCDPWR;
- writel(cntl, fb->regs + CLCD_CNTL);
+ writel(cntl, fb->regs + fb->off_cntl);
/*
* finally, enable the interface.
@@ -233,7 +233,7 @@ static int clcdfb_set_par(struct fb_info *info)
readl(fb->regs + CLCD_TIM0), readl(fb->regs + CLCD_TIM1),
readl(fb->regs + CLCD_TIM2), readl(fb->regs + CLCD_TIM3),
readl(fb->regs + CLCD_UBAS), readl(fb->regs + CLCD_LBAS),
- readl(fb->regs + CLCD_IENB), readl(fb->regs + CLCD_CNTL));
+ readl(fb->regs + fb->off_ienb), readl(fb->regs + fb->off_cntl));
#endif
return 0;
@@ -345,6 +345,23 @@ static int clcdfb_register(struct clcd_fb *fb)
{
int ret;
+ /*
+ * ARM PL111 always has IENB at 0x1c; it's only PL110
+ * which is reversed on some platforms.
+ */
+ if (amba_manf(fb->dev) == 0x41 && amba_part(fb->dev) == 0x111) {
+ fb->off_ienb = CLCD_PL111_IENB;
+ fb->off_cntl = CLCD_PL111_CNTL;
+ } else {
+#ifdef CONFIG_ARCH_VERSATILE
+ fb->off_ienb = CLCD_PL111_IENB;
+ fb->off_cntl = CLCD_PL111_CNTL;
+#else
+ fb->off_ienb = CLCD_PL110_IENB;
+ fb->off_cntl = CLCD_PL110_CNTL;
+#endif
+ }
+
fb->clk = clk_get(&fb->dev->dev, NULL);
if (IS_ERR(fb->clk)) {
ret = PTR_ERR(fb->clk);
@@ -416,7 +433,7 @@ static int clcdfb_register(struct clcd_fb *fb)
/*
* Ensure interrupts are disabled.
*/
- writel(0, fb->regs + CLCD_IENB);
+ writel(0, fb->regs + fb->off_ienb);
fb_set_var(&fb->fb, &fb->fb.var);