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Change the sequence of events in soft_i2c.c:send_ack() to keep from

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incorrectly generating start/stop conditions on the bus.
Patch by Andrew Dyer, 26 Jul 2005
This commit is contained in:
Wolfgang Denk 2006-03-13 00:50:48 +01:00
parent b38dbd4622
commit c15f80eaef
2 changed files with 5 additions and 4 deletions
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4
CHANGELOG
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@ -2,6 +2,10 @@
Changes since U-Boot 1.1.4:
======================================================================
* Change the sequence of events in soft_i2c.c:send_ack() to keep from
incorrectly generating start/stop conditions on the bus.
Patch by Andrew Dyer, 26 Jul 2005
* Fix bug in [id]cache_status commands for MPC85xx processors;
should look at LSB of L1CSRn registers to determine if L1 cache is
enabled, not the MSB.

5
common/soft_i2c.c
View File

@ -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;