From f76d88b06062febf4ede375f92d68984e7f60f1f Mon Sep 17 00:00:00 2001 From: Wen He Date: Mon, 18 Nov 2019 13:26:09 +0800 Subject: [PATCH] armv8: ls1028ardb: enable DisplayPort Power support Enable DP_PWR signal to power the DP to HDMI converter cable. Signed-off-by: Wen He Signed-off-by: Priyanka Jain --- 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 a9606b8865..1151e77531 100644 --- a/board/freescale/ls1028a/ls1028a.c +++ b/board/freescale/ls1028a/ls1028a.c @@ -86,7 +86,19 @@ 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 4bd510d42e..05b8cf00ee 100644 --- a/include/configs/ls1028a_common.h +++ b/include/configs/ls1028a_common.h @@ -210,6 +210,9 @@ #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_NXP_ESBC #include #endif -- 2.25.1