[U-Boot] [v2] armv8: ls1028ardb: enable DisplayPort Power support

[Wen He]

Enable DP_PWR signal to power the DP to HDMI converter cable.

Signed-off-by: Wen He <wen.he_1 at nxp.com>
---
 board/freescale/ls1028a/ls1028a.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c
index ece91660bf..7d34f92eb5 100644
--- a/board/freescale/ls1028a/ls1028a.c
+++ b/board/freescale/ls1028a/ls1028a.c
@@ -75,6 +75,19 @@ int board_init(void)
 	u8 val = I2C_MUX_CH_DEFAULT;
 
 	i2c_write(I2C_MUX_PCA_ADDR_PRI, 0x0b, 1, &val, 1);
+#endif
+
+#if defined(CONFIG_TARGET_LS1028ARDB)
+	u8 reg;
+
+	reg = QIXIS_READ(brdcfg[4]);
+	/* Field| Function
+	 * 3     | DisplayPort Power Enable (net DP_PWR_EN):
+	 * DPPWR | 0= DP_PWR is enabled.
+	 */
+	reg &= ~(0x08);
+	QIXIS_WRITE(brdcfg[4], reg);
+
 #endif
 	return 0;
 }
-- 
2.17.1