/* -*- mode:c -*- * * Copyright 2015 The Chromium OS Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. * * Minimal set of GPIOs needed for LFW loader */ /* * MEC1701H GPIO_0055/PWM2/SHD_CS0#/RSMRST# * MEC1701H QMSPI controller drives chip select, must be * configured to alternative function. See below. * GPIO_SHD_CS0 is used in board level spi_devices[] table */ GPIO(QMSPI_CS0, PIN(055), GPIO_ODR_HIGH) /* Alternate functions GPIO definition */ /* * UART * GPIO_0104(UART0_TX) Func1 * GPIO_0105(UART0_RX) Func1 * Bank 2 bits[4:5] */ ALTERNATE(PIN_MASK(2, 0x30), 1, MODULE_UART, 0) /* SPI pins */ /* * MEC1701H SHD SPI is connected to QMSPI controller. * QMSPI drives chip select. SHD_CS0#(GPIO_0055) must be set * to alternate function 2 and GPIO_ODR_HIGH. * GPIO_0055 Function 2, Bank 1 bit[13] */ ALTERNATE(PIN_MASK(1, 0x2000), 2, MODULE_SPI_FLASH, GPIO_ODR_HIGH) /* SHD_CLK - GPIO_0056 Function 2, Bank 1 bit[14] */ ALTERNATE(PIN_MASK(1, 0x4000), 2, MODULE_SPI_FLASH, 0) /* MOSI(SHD_IO0) - GPIO_0223 Function 2, Bank 4 bit[19] */ /* MISO(SHD_IO1) - GPIO_0224 Function 2, Bank 4 bit[20] */ ALTERNATE(PIN_MASK(4, 0x180000), 2, MODULE_SPI_FLASH, 0)