RTEMS | Add the support for i2c driver in the aarch64/raspberrypi bsp (!363)

Tue Mar 25 18:30:13 UTC 2025

Kinsey Moore commented on a discussion on bsps/aarch64/raspberrypi/i2c/raspberrypi-i2c.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/363#note_121760

 > -        ++bus->current_buffer;
 > -        if (
 > -            (BCM2835_REG(bus->base_address + BCM2711_I2C_STATUS) & (1 << 8)) ||
 > -            (BCM2835_REG(bus->base_address + BCM2711_I2C_STATUS) & (1 << 9)))
 > -        {
 > -            return -EIO;
 > +    } 
 > +    else 
 > +    {
 > +        while (!(BCM2835_REG(bus->base_address + BCM2711_I2C_STATUS) & S_DONE)) {
 > +            while (bus->remaining_bytes > 0 && 
 > +                (BCM2835_REG(bus->base_address + BCM2711_I2C_STATUS) & S_TXD)) {
 > +                BCM2835_REG(bus->base_address + BCM2711_I2C_FIFO) = *(bus->current_buffer);
 > +                bus->current_buffer++;
 > +                bus->remaining_bytes--;
 > +                if(bus->remaining_bytes == 0){

This has not been addressed.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/363#note_121760
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