diff options
Diffstat (limited to 'src/mainboard/google/gale/gsbi.c')
-rw-r--r-- | src/mainboard/google/gale/gsbi.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mainboard/google/gale/gsbi.c b/src/mainboard/google/gale/gsbi.c new file mode 100644 index 0000000000..915f317df9 --- /dev/null +++ b/src/mainboard/google/gale/gsbi.c @@ -0,0 +1,64 @@ +/* + * This file is part of the depthcharge project. + * + * Copyright (C) 2014 - 2015 The Linux Foundation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <soc/gpio.h> +#include <soc/gsbi.h> +#include <soc/qup.h> + +#define GPIO_FUNC_I2C 0x1 + +int gsbi_init_board(gsbi_id_t gsbi_id) +{ + switch (gsbi_id) { + case GSBI_ID_7: + gpio_tlmm_config_set(8, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + gpio_tlmm_config_set(9, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + break; + case GSBI_ID_4: + /* Configure GPIOs 13 - SCL, 12 - SDA, 2mA gpio_en */ + gpio_tlmm_config_set(12, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + gpio_tlmm_config_set(13, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + break; + case GSBI_ID_1: + /* Configure GPIOs 54 - SCL, 53 - SDA, 2mA gpio_en */ + gpio_tlmm_config_set(54, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + gpio_tlmm_config_set(53, GPIO_FUNC_I2C, + GPIO_NO_PULL, GPIO_2MA, 1); + break; + default: + return 1; + } + + return 0; +} |