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armv8: ls1028ardb: enable DisplayPort Power support

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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>
This commit is contained in:
Wen He 2019-11-18 13:26:09 +08:00 committed by Priyanka Jain
parent 7bd1e7b7d1
commit f76d88b060
2 changed files with 15 additions and 0 deletions
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12
board/freescale/ls1028a/ls1028a.c
View file

@ -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;
}

3
include/configs/ls1028a_common.h
View file

@ -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