| /* Copyright (c) 2014, 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: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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 <debug.h> |
| #include <reg.h> |
| #include <platform/iomap.h> |
| #include <platform/gpio.h> |
| #include <blsp_qup.h> |
| #include <smem.h> |
| |
| void gpio_tlmm_config(uint32_t gpio, uint8_t func, |
| uint8_t dir, uint8_t pull, |
| uint8_t drvstr, uint32_t enable) |
| { |
| uint32_t val = 0; |
| val |= pull; |
| val |= func << 2; |
| val |= drvstr << 6; |
| val |= enable << 9; |
| writel(val, (uint32_t *)GPIO_CONFIG_ADDR(gpio)); |
| return; |
| } |
| |
| void gpio_set(uint32_t gpio, uint32_t dir) |
| { |
| writel(dir, (uint32_t *)GPIO_IN_OUT_ADDR(gpio)); |
| return; |
| } |
| |
| /* Configure gpio for blsp uart 2 */ |
| void gpio_config_uart_dm(uint8_t id) |
| { |
| if (board_hardware_subtype() == HW_PLATFORM_SUBTYPE_8909_PM660_V1) |
| { |
| /* configure rx gpio */ |
| gpio_tlmm_config(21, 3, GPIO_INPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure tx gpio */ |
| gpio_tlmm_config(20, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| } |
| else |
| { |
| /* configure rx gpio */ |
| gpio_tlmm_config(5, 2, GPIO_INPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure tx gpio */ |
| gpio_tlmm_config(4, 2, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| } |
| } |
| |
| uint32_t gpio_status(uint32_t gpio) |
| { |
| return readl(GPIO_IN_OUT_ADDR(gpio)) & GPIO_IN; |
| } |
| |
| void gpio_config_blsp_i2c(uint8_t blsp_id, uint8_t qup_id) |
| { |
| if(blsp_id == BLSP_ID_1) { |
| switch (qup_id) { |
| case QUP_ID_1: |
| /* configure I2C SDA gpio */ |
| gpio_tlmm_config(6, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure I2C SCL gpio */ |
| gpio_tlmm_config(7, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| break; |
| case QUP_ID_2: |
| /* configure I2C SDA gpio */ |
| gpio_tlmm_config(111, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure I2C SCL gpio */ |
| gpio_tlmm_config(112, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| break; |
| case QUP_ID_3: |
| /* configure I2C SDA gpio */ |
| gpio_tlmm_config(29, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure I2C SCL gpio */ |
| gpio_tlmm_config(30, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| break; |
| case QUP_ID_4: |
| /* configure I2C SDA gpio */ |
| gpio_tlmm_config(14, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure I2C SCL gpio */ |
| gpio_tlmm_config(15, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| break; |
| case QUP_ID_5: |
| /* configure I2C SDA gpio */ |
| gpio_tlmm_config(18, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| |
| /* configure I2C SCL gpio */ |
| gpio_tlmm_config(19, 3, GPIO_OUTPUT, GPIO_NO_PULL, |
| GPIO_8MA, GPIO_DISABLE); |
| break; |
| |
| default: |
| dprintf(CRITICAL, "Incorrect QUP id %d\n",qup_id); |
| ASSERT(0); |
| }; |
| } else { |
| dprintf(CRITICAL, "Incorrect BLSP id %d\n",blsp_id); |
| ASSERT(0); |
| } |
| } |