leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i2c: designware: Allow sending restart conditions

Browse Source 
Allow sending restart conditions upon direction change as this is
required by some chips.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denxx.de>
This commit is contained in:
Marek Vasut 2017-08-07 20:45:31 +02:00 committed by Heiko Schocher
parent daa0f0500f
commit 014e47f028
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/i2c/designware_i2c.c
View File

@ -374,7 +374,8 @@ static void __dw_i2c_init(struct i2c_regs *i2c_base, int speed, int slaveaddr)
/* Disable i2c */
dw_i2c_enable(i2c_base, false);
writel((IC_CON_SD | IC_CON_SPD_FS | IC_CON_MM), &i2c_base->ic_con);
writel(IC_CON_SD | IC_CON_RE | IC_CON_SPD_FS | IC_CON_MM,
&i2c_base->ic_con);
writel(IC_RX_TL, &i2c_base->ic_rx_tl);
writel(IC_TX_TL, &i2c_base->ic_tx_tl);
writel(IC_STOP_DET, &i2c_base->ic_intr_mask);