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[U-Boot,2/3] armv8/ls1043aqds: Return the default chennel

Message ID 1457424402-21111-2-git-send-email-wenbin.song@nxp.com
State Accepted
Commit ec44289db5c340872bdc76dfcea50bb9b6c56d4d
Delegated to: York Sun
Headers show

Commit Message

Wenbin song March 8, 2016, 8:06 a.m. UTC 
In order to avoid effecting some i2c devices
mounted on default channel, return the default
channel after retimer initialization.

Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
---
 board/freescale/ls1043aqds/ls1043aqds.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/board/freescale/ls1043aqds/ls1043aqds.c b/board/freescale/ls1043aqds/ls1043aqds.c
index a72fe52..fba6b88 100644
--- a/board/freescale/ls1043aqds/ls1043aqds.c
+++ b/board/freescale/ls1043aqds/ls1043aqds.c
@@ -170,8 +170,7 @@  void board_retimer_init(void)
 	u8 reg;
 
 	/* Retimer is connected to I2C1_CH7_CH5 */
-	reg = I2C_MUX_CH7;
-	i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &reg, 1);
+	select_i2c_ch_pca9547(I2C_MUX_CH7);
 	reg = I2C_MUX_CH5;
 	i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, &reg, 1);
 
@@ -219,6 +218,9 @@  void board_retimer_init(void)
 	i2c_write(I2C_RETIMER_ADDR, 0x63, 1, &reg, 1);
 	reg = 0xcd;
 	i2c_write(I2C_RETIMER_ADDR, 0x64, 1, &reg, 1);
+
+	/* Return the default channel */
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
 }
 
 int board_early_init_f(void)