blsp.c

Go to the documentation of this file.

/* SPDX-License-Identifier: BSD-3-Clause */
 
#include <device/mmio.h>
#include <soc/blsp.h>
#include <soc/gpio.h>
#include <soc/iomap.h>
#include <soc/clock.h>
 
blsp_return_t blsp_i2c_init(blsp_qup_id_t id)
{
        void *base;
 
        switch (id) {
        case BLSP_QUP_ID_1:
                gpio_configure
                        (GPIO(24), 2, GPIO_PULL_UP, GPIO_2MA, GPIO_OUTPUT);
                gpio_configure
                        (GPIO(25), 2, GPIO_PULL_UP, GPIO_2MA, GPIO_OUTPUT);
                break;
        default:
                return BLSP_ID_ERROR;
        }
 
        clock_configure_i2c(19200000);
        clock_enable_i2c();
 
        base = blsp_qup_base(id);
 
        if (!base)
                return BLSP_ID_ERROR;
 
        /* Configure Mini core to I2C core */
        clrsetbits32(base, BLSP_MINI_CORE_MASK, BLSP_MINI_CORE_I2C);
 
        return BLSP_SUCCESS;
}