Enable DP_PWR signal to power the DP to HDMI converter cable.
Signed-off-by: Wen He wen.he_1@nxp.com --- board/freescale/ls1028a/ls1028a.c | 14 ++++++++++++++ include/configs/ls1028a_common.h | 3 +++ 2 files changed, 17 insertions(+)
diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c index 095971448f..c71ed21e9f 100644 --- a/board/freescale/ls1028a/ls1028a.c +++ b/board/freescale/ls1028a/ls1028a.c @@ -83,6 +83,20 @@ int board_init(void) 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