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| author | Markus Klotzbuecher <mk@denx.de> | 2006-03-24 15:43:16 +0100 |
|---|---|---|
| committer | Markus Klotzbücher <mk@pollux.denx.de> | 2006-03-24 15:43:16 +0100 |
| commit | 2770bcb21c82835a5351176e5b2a9221d7fc8ef9 (patch) | |
| tree | 78edf9afc584e1a76d219bd64d260224a84f0d10 /common/soft_i2c.c | |
| parent | 0b953ffc653fc5ab3d3fa47abf0dd9b8bd0703f5 (diff) | |
| parent | 05d8dce9d07cf4073ea15fbc448c1ce22b6baf0f (diff) | |
| download | u-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.zip u-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.tar.gz u-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.tar.bz2 | |
Merge with http://www.denx.de/git/u-boot.git
Diffstat (limited to 'common/soft_i2c.c')
| -rw-r--r-- | common/soft_i2c.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/common/soft_i2c.c b/common/soft_i2c.c index 3d0e08c..b3642da 100644 --- a/common/soft_i2c.c +++ b/common/soft_i2c.c @@ -164,13 +164,10 @@ static void send_ack(int ack) volatile immap_t *immr = (immap_t *)CFG_IMMR; #endif - I2C_ACTIVE; I2C_SCL(0); I2C_DELAY; - - I2C_SDA(ack); - I2C_ACTIVE; + I2C_SDA(ack); I2C_DELAY; I2C_SCL(1); I2C_DELAY; @@ -288,7 +285,10 @@ int i2c_probe(uchar addr) { int rc; - /* perform 1 byte read transaction */ + /* + * perform 1 byte write transaction with just address byte + * (fake write) + */ send_start(); rc = write_byte ((addr << 1) | 0); send_stop(); |