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 | 13 +++++++++++++ include/configs/ls1028a_common.h | 3 +++ 2 files changed, 16 insertions(+)

diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c index ece91660bf..ea8c43b6af 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 &= ~(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 41ce4a054c..1d93b4bf6b 100644 --- a/include/configs/ls1028a_common.h +++ b/include/configs/ls1028a_common.h @@ -219,6 +219,9 @@ #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