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include/pch.h
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/* * Copyright (c) 2015 Google, Inc * Written by Simon Glass <sjg@chromium.org> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __pch_h #define __pch_h #define PCH_RCBA 0xf0 #define BIOS_CTRL_BIOSWE BIT(0) /* Operations for the Platform Controller Hub */ struct pch_ops { /** * get_spi_base() - get the address of SPI base * * @dev: PCH device to check * @sbasep: Returns address of SPI base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no SPI base) */ int (*get_spi_base)(struct udevice *dev, ulong *sbasep); /** * set_spi_protect() - set whether SPI flash is protected or not * * @dev: PCH device to adjust * @protect: true to protect, false to unprotect * * @return 0 on success, -ENOSYS if not implemented */ int (*set_spi_protect)(struct udevice *dev, bool protect); /** * get_gpio_base() - get the address of GPIO base * * @dev: PCH device to check * @gbasep: Returns address of GPIO base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no GPIO base) */ int (*get_gpio_base)(struct udevice *dev, u32 *gbasep); /** * get_io_base() - get the address of IO base * * @dev: PCH device to check * @iobasep: Returns address of IO base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no IO base) */ int (*get_io_base)(struct udevice *dev, u32 *iobasep); }; #define pch_get_ops(dev) ((struct pch_ops *)(dev)->driver->ops) /** * pch_get_spi_base() - get the address of SPI base * * @dev: PCH device to check * @sbasep: Returns address of SPI base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no SPI base) */ int pch_get_spi_base(struct udevice *dev, ulong *sbasep); /** * set_spi_protect() - set whether SPI flash is protected or not * * @dev: PCH device to adjust * @protect: true to protect, false to unprotect * * @return 0 on success, -ENOSYS if not implemented */ int pch_set_spi_protect(struct udevice *dev, bool protect); /** * pch_get_gpio_base() - get the address of GPIO base * * @dev: PCH device to check * @gbasep: Returns address of GPIO base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no GPIO base) */ int pch_get_gpio_base(struct udevice *dev, u32 *gbasep); /** * pch_get_io_base() - get the address of IO base * * @dev: PCH device to check * @iobasep: Returns address of IO base if available, else 0 * @return 0 if OK, -ve on error (e.g. there is no IO base) */ int pch_get_io_base(struct udevice *dev, u32 *iobasep); #endif |