diff options
Diffstat (limited to 'drivers/i2c/designware_i2c.c')
| -rw-r--r-- | drivers/i2c/designware_i2c.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index c2f0662..cb2ac04 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -151,7 +151,19 @@ void i2c_init(int speed, int slaveadd) */ static void i2c_setaddress(unsigned int i2c_addr) { + unsigned int enbl; + + /* Disable i2c */ + enbl = readl(&i2c_regs_p->ic_enable); + enbl &= ~IC_ENABLE_0B; + writel(enbl, &i2c_regs_p->ic_enable); + writel(i2c_addr, &i2c_regs_p->ic_tar); + + /* Enable i2c */ + enbl = readl(&i2c_regs_p->ic_enable); + enbl |= IC_ENABLE_0B; + writel(enbl, &i2c_regs_p->ic_enable); } /* @@ -237,9 +249,6 @@ static int i2c_xfer_finish(void) i2c_flush_rxfifo(); - /* Wait for read/write operation to complete on actual memory */ - udelay(10000); - return 0; } |