From: Wen He <wen.he_1@nxp.com>
Date: Mon, 18 Nov 2019 05:26:09 +0000 (+0800)
Subject: armv8: ls1028ardb: enable DisplayPort Power support
X-Git-Tag: v2020.04-rc1~39^2^2~9
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f76d88b06062febf4ede375f92d68984e7f60f1f;p=oweals%2Fu-boot.git

armv8: ls1028ardb: enable DisplayPort Power support

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

Signed-off-by: Wen He <wen.he_1@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
---

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 <asm/fsl_secure_boot.h>
 #endif