1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2015 Google, Inc 3*4882a593Smuzhiyun * Written by Simon Glass <sjg@chromium.org> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __pch_h 9*4882a593Smuzhiyun #define __pch_h 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #define PCH_RCBA 0xf0 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define BIOS_CTRL_BIOSWE BIT(0) 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* Operations for the Platform Controller Hub */ 16*4882a593Smuzhiyun struct pch_ops { 17*4882a593Smuzhiyun /** 18*4882a593Smuzhiyun * get_spi_base() - get the address of SPI base 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * @dev: PCH device to check 21*4882a593Smuzhiyun * @sbasep: Returns address of SPI base if available, else 0 22*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no SPI base) 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun int (*get_spi_base)(struct udevice *dev, ulong *sbasep); 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /** 27*4882a593Smuzhiyun * set_spi_protect() - set whether SPI flash is protected or not 28*4882a593Smuzhiyun * 29*4882a593Smuzhiyun * @dev: PCH device to adjust 30*4882a593Smuzhiyun * @protect: true to protect, false to unprotect 31*4882a593Smuzhiyun * 32*4882a593Smuzhiyun * @return 0 on success, -ENOSYS if not implemented 33*4882a593Smuzhiyun */ 34*4882a593Smuzhiyun int (*set_spi_protect)(struct udevice *dev, bool protect); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /** 37*4882a593Smuzhiyun * get_gpio_base() - get the address of GPIO base 38*4882a593Smuzhiyun * 39*4882a593Smuzhiyun * @dev: PCH device to check 40*4882a593Smuzhiyun * @gbasep: Returns address of GPIO base if available, else 0 41*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no GPIO base) 42*4882a593Smuzhiyun */ 43*4882a593Smuzhiyun int (*get_gpio_base)(struct udevice *dev, u32 *gbasep); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun /** 46*4882a593Smuzhiyun * get_io_base() - get the address of IO base 47*4882a593Smuzhiyun * 48*4882a593Smuzhiyun * @dev: PCH device to check 49*4882a593Smuzhiyun * @iobasep: Returns address of IO base if available, else 0 50*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no IO base) 51*4882a593Smuzhiyun */ 52*4882a593Smuzhiyun int (*get_io_base)(struct udevice *dev, u32 *iobasep); 53*4882a593Smuzhiyun }; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #define pch_get_ops(dev) ((struct pch_ops *)(dev)->driver->ops) 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun /** 58*4882a593Smuzhiyun * pch_get_spi_base() - get the address of SPI base 59*4882a593Smuzhiyun * 60*4882a593Smuzhiyun * @dev: PCH device to check 61*4882a593Smuzhiyun * @sbasep: Returns address of SPI base if available, else 0 62*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no SPI base) 63*4882a593Smuzhiyun */ 64*4882a593Smuzhiyun int pch_get_spi_base(struct udevice *dev, ulong *sbasep); 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun /** 67*4882a593Smuzhiyun * set_spi_protect() - set whether SPI flash is protected or not 68*4882a593Smuzhiyun * 69*4882a593Smuzhiyun * @dev: PCH device to adjust 70*4882a593Smuzhiyun * @protect: true to protect, false to unprotect 71*4882a593Smuzhiyun * 72*4882a593Smuzhiyun * @return 0 on success, -ENOSYS if not implemented 73*4882a593Smuzhiyun */ 74*4882a593Smuzhiyun int pch_set_spi_protect(struct udevice *dev, bool protect); 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun /** 77*4882a593Smuzhiyun * pch_get_gpio_base() - get the address of GPIO base 78*4882a593Smuzhiyun * 79*4882a593Smuzhiyun * @dev: PCH device to check 80*4882a593Smuzhiyun * @gbasep: Returns address of GPIO base if available, else 0 81*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no GPIO base) 82*4882a593Smuzhiyun */ 83*4882a593Smuzhiyun int pch_get_gpio_base(struct udevice *dev, u32 *gbasep); 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun /** 86*4882a593Smuzhiyun * pch_get_io_base() - get the address of IO base 87*4882a593Smuzhiyun * 88*4882a593Smuzhiyun * @dev: PCH device to check 89*4882a593Smuzhiyun * @iobasep: Returns address of IO base if available, else 0 90*4882a593Smuzhiyun * @return 0 if OK, -ve on error (e.g. there is no IO base) 91*4882a593Smuzhiyun */ 92*4882a593Smuzhiyun int pch_get_io_base(struct udevice *dev, u32 *iobasep); 93*4882a593Smuzhiyun 94*4882a593Smuzhiyun #endif 95