hw/i2c/bcm2835_i2c: Correct CLKT register offset The Clock Stretch Timeout (CLKT) register for the BCM2835 I2C controller is actually located at offset 0x1c, not 0x20.
The previous incorrect value caused the guest OS to read from and write to the wrong memory address when configuring the I2C timeout, which could lead to unexpected controller behavior. Update the BCM2835_I2C_CLKT macro to match the hardware specification. Signed-off-by: botszhuang <[email protected]> --- include/hw/i2c/bcm2835_i2c.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/hw/i2c/bcm2835_i2c.h b/include/hw/i2c/bcm2835_i2c.h index 45f876df22..519c65f765 100644 --- a/include/hw/i2c/bcm2835_i2c.h +++ b/include/hw/i2c/bcm2835_i2c.h @@ -38,7 +38,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(BCM2835I2CState, BCM2835_I2C) #define BCM2835_I2C_FIFO 0x10 /* FIFO */ #define BCM2835_I2C_DIV 0x14 /* Clock Divider */ #define BCM2835_I2C_DEL 0x18 /* Data Delay */ -#define BCM2835_I2C_CLKT 0x20 /* Clock Stretch Timeout */ +#define BCM2835_I2C_CLKT 0x1c /* Clock Stretch Timeout */ #define BCM2835_I2C_C_I2CEN BIT(15) /* I2C enable */ #define BCM2835_I2C_C_INTR BIT(10) /* Interrupt on RXR */ -- 2.43.0
