[U-Boot] [PATCH v4 10/13] board: gdsys: Enable scrambling on DP501

dirk.eibach at gdsys.cc
2014-07-03T07:28:23Z

From: Dirk Eibach <dirk.eibach@gdsys.cc>

For proper displayport performance, scrambling has to be enabled, but
is turned off on DP501 by default.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

board/gdsys/common/dp501.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c
index 7958bae..7eb15ed 100644
--- a/board/gdsys/common/dp501.c
+++ b/board/gdsys/common/dp501.c
@@ -61,6 +61,7 @@ void dp501_powerup(u8 addr)
i2c_reg_write(addr, 0x71, 0x20); /* Enable Aux burst write */
dp501_setbits(addr, 0x78, 0x30); /* Disable HPD2 IRQ */
dp501_clrbits(addr, 0x2f, 0x40); /* Link FIFO reset selection */
+ dp501_clrbits(addr, 0x60, 0x20); /* Enable scrambling */

#ifdef CONFIG_SYS_DP501_VCAPCTRL0
i2c_reg_write(addr, 0x24, CONFIG_SYS_DP501_VCAPCTRL0);
--
1.8.3