From 5568fb4402d5b0e01f61867c281b07633f529fd4 Mon Sep 17 00:00:00 2001 From: Dirk Eibach Date: Thu, 3 Jul 2014 09:28:21 +0200 Subject: [PATCH] board: gdsys: Configure bridge on DP501 to support DDC only The I2C bridge on DP501 supports EDID, MCCS and HDCP by default. Allow EDID only to avoid I2C address conflicts. Signed-off-by: Dirk Eibach --- board/gdsys/common/dp501.c | 1 + include/configs/controlcenterd.h | 7 ++++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c index e00e58997b..7958baeaaf 100644 --- a/board/gdsys/common/dp501.c +++ b/board/gdsys/common/dp501.c @@ -54,6 +54,7 @@ static void dp501_link_training(u8 addr) void dp501_powerup(u8 addr) { dp501_clrbits(addr, 0x0a, 0x30); /* power on encoder */ + dp501_setbits(addr, 0x0a, 0x0e); /* block HDCP and MCCS on I2C bride*/ i2c_reg_write(addr, 0x27, 0x30); /* Hardware auto detect DVO timing */ dp501_setbits(addr, 0x72, 0x80); /* DPCD read enable */ dp501_setbits(addr, 0x30, 0x20); /* RS polynomial select */ diff --git a/include/configs/controlcenterd.h b/include/configs/controlcenterd.h index 868813f29b..ec3145f430 100644 --- a/include/configs/controlcenterd.h +++ b/include/configs/controlcenterd.h @@ -199,9 +199,10 @@ #define CONFIG_SYS_FSL_I2C2_SPEED 400000 #define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F #define CONFIG_SYS_FSL_I2C2_OFFSET 0x3100 -/* Probing DP501 I2C-Bridge will hang */ -#define CONFIG_SYS_I2C_NOPROBES { {0, 0x30}, {0, 0x37}, {0, 0x3a}, \ - {0, 0x3b}, {0, 0x50} } + +#ifndef CONFIG_TRAILBLAZER +#define CONFIG_CMD_I2C +#endif #define CONFIG_PCA9698 /* NXP PCA9698 */ -- 2.39.5