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Merge "stm32: ensure I2C properly behave after sysjump"

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Gerrit
2012-05-22 15:50:09 -07:00
committed by Gerrit Code Review
parent 37732ced8c 4a7774c122
commit 8b468a8a26
1 changed files with 6 additions and 0 deletions
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6
chip/stm32/i2c.c
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@@ -176,6 +176,12 @@ static int i2c_init2(void)
/* enable I2C2 clock */
STM32_RCC_APB1ENR |= 1 << 22;
/* force reset if the bus is stuck in BUSY state */
if (STM32_I2C_SR2(I2C2) & 0x2) {
STM32_I2C_CR1(I2C2) = 0x8000;
STM32_I2C_CR1(I2C2) = 0x0000;
}
/* set clock configuration : standard mode (100kHz) */
STM32_I2C_CCR(I2C2) = I2C_CCR;