Enable DP_PWR signal to power the DP to HDMI converter cable.
Signed-off-by: Wen He <wen.h...@nxp.com>
---
board/freescale/ls1028a/ls1028a.c | 12 ++++++++++++
include/configs/ls1028a_common.h | 3 +++
2 files changed, 15 insertions(+)
diff --git a/board/freescale/ls1028a/ls1028a.c
b/board/freescale/ls1028a/ls1028a.c
index 095971448f..9281717264 100644
--- a/board/freescale/ls1028a/ls1028a.c
+++ b/board/freescale/ls1028a/ls1028a.c
@@ -82,7 +82,19 @@ int board_init(void)
if (!i2c_get_chip_for_busnum(0, I2C_MUX_PCA_ADDR_PRI, 1, &dev))
dm_i2c_write(dev, 0x0b, &val, 1);
#endif
+#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 &= ~(DP_PWD_EN_DEFAULT_MASK);
+ QIXIS_WRITE(brdcfg[4], reg);
#endif
return 0;
}
diff --git a/include/configs/ls1028a_common.h b/include/configs/ls1028a_common.h
index 40fcd22582..99f5c21689 100644
--- a/include/configs/ls1028a_common.h
+++ b/include/configs/ls1028a_common.h
@@ -192,6 +192,9 @@
#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 3
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 5
+/* DisplayPort */
+#define DP_PWD_EN_DEFAULT_MASK 0x8
+
#ifdef CONFIG_SECURE_BOOT
#include <asm/fsl_secure_boot.h>
#endif
--
2.17.1
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