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authorMark Jackson <mpfj-list@mimc.co.uk>2009-06-29 15:59:10 +0100
committerAnatolij Gustschin <agust@denx.de>2009-06-30 16:22:35 +0200
commit6bbced671719518d0e28ff422623cd7ce396cbda (patch)
treee6bdfe2e5abf78463dd6898a42839bd318ff9b39 /drivers/video/atmel_lcdfb.c
parent3e88337b225bf796f6df21d0a7f591530e9d4ce0 (diff)
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Atmel LCD driver GUARDTIME fix
This patch allows the guard time parameter to be set in the Atmel LCDC driver. By default, the previous value of 1 is used, unless the setting is defined elsewhere. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
Diffstat (limited to 'drivers/video/atmel_lcdfb.c')
-rw-r--r--drivers/video/atmel_lcdfb.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 3a51cc7..db86763 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -42,6 +42,9 @@ short console_row;
/* configurable parameters */
#define ATMEL_LCDC_CVAL_DEFAULT 0xc8
#define ATMEL_LCDC_DMA_BURST_LEN 8
+#ifndef ATMEL_LCDC_GUARD_TIME
+#define ATMEL_LCDC_GUARD_TIME 1
+#endif
#if defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91CAP9)
#define ATMEL_LCDC_FIFO_SIZE 2048
@@ -69,7 +72,7 @@ void lcd_ctrl_init(void *lcdbase)
/* Turn off the LCD controller and the DMA controller */
lcdc_writel(panel_info.mmio, ATMEL_LCDC_PWRCON,
- 1 << ATMEL_LCDC_GUARDT_OFFSET);
+ ATMEL_LCDC_GUARD_TIME << ATMEL_LCDC_GUARDT_OFFSET);
/* Wait for the LCDC core to become idle */
while (lcdc_readl(panel_info.mmio, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
@@ -150,7 +153,7 @@ void lcd_ctrl_init(void *lcdbase)
lcdc_writel(panel_info.mmio, ATMEL_LCDC_DMACON, ATMEL_LCDC_DMAEN);
lcdc_writel(panel_info.mmio, ATMEL_LCDC_PWRCON,
- (1 << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR);
+ (ATMEL_LCDC_GUARD_TIME << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR);
}
ulong calc_fbsize(void)