video: atmel_hlcdfb: enable dcache support

[karo-tx-uboot.git] / drivers / video / atmel_hlcdfb.c

diff --git a/drivers/video/atmel_hlcdfb.c b/drivers/video/atmel_hlcdfb.c
index bb4d7d8c1471ad9ca79b203ad4cc7cc03c673c01..935ae42a9c873904ff8e7a174332438fe5d7d34c 100644 (file)
--- a/drivers/video/atmel_hlcdfb.c
+++ b/drivers/video/atmel_hlcdfb.c
@@ -171,6 +171,9 @@ void lcd_ctrl_init(void *lcdbase)
                        | LCDC_BASECTRL_DMAIEN | LCDC_BASECTRL_DFETCH;
        desc->next = (u32)desc;
 
+       /* Flush the DMA descriptor if we enabled dcache */
+       flush_dcache_range((u32)desc, (u32)desc + sizeof(*desc));
+
        lcdc_writel(&regs->lcdc_baseaddr, desc->address);
        lcdc_writel(&regs->lcdc_basectrl, desc->control);
        lcdc_writel(&regs->lcdc_basenext, desc->next);
@@ -194,4 +197,7 @@ void lcd_ctrl_init(void *lcdbase)
        lcdc_writel(&regs->lcdc_lcden, value | LCDC_LCDEN_PWMEN);
        while (!(lcdc_readl(&regs->lcdc_lcdsr) & LCDC_LCDSR_PWMSTS))
                udelay(1);
+
+       /* Enable flushing if we enabled dcache */
+       lcd_set_flush_dcache(1);
 }