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u-boot/include/pch.h

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dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __pch_h
#define __pch_h
dm: x86: Add a driver for Intel PCH7 At some point we may need to distinguish between different types of PCHs, but for existing supported platforms we only need to worry about version 7 and version 9 bridges. Add a driver for the PCH7. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:18 +00:00
#define PCH_RCBA 0xf0
#define BIOS_CTRL_BIOSWE BIT(0)
dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
/* Operations for the Platform Controller Hub */
struct pch_ops {
/**
dm: pch: Rename get_sbase op to get_spi_base Spell out 'sbase' to 'spi_base' so that it looks clearer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2016-02-01 09:40:42 +00:00
* get_spi_base() - get the address of SPI base
dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
*
* @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)
*/
dm: pch: Rename get_sbase op to get_spi_base Spell out 'sbase' to 'spi_base' so that it looks clearer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2016-02-01 09:40:42 +00:00
int (*get_spi_base)(struct udevice *dev, ulong *sbasep);
dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
/**
* 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);
};
#define pch_get_ops(dev) ((struct pch_ops *)(dev)->driver->ops)
/**
dm: pch: Rename get_sbase op to get_spi_base Spell out 'sbase' to 'spi_base' so that it looks clearer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2016-02-01 09:40:42 +00:00
* pch_get_spi_base() - get the address of SPI base
dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
*
* @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)
*/
dm: pch: Rename get_sbase op to get_spi_base Spell out 'sbase' to 'spi_base' so that it looks clearer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2016-02-01 09:40:42 +00:00
int pch_get_spi_base(struct udevice *dev, ulong *sbasep);
dm: Expand the uclass for Platform Controller Hubs (PCH) A Platform Controller Hub is an Intel concept - it is like the peripherals on an SoC and is often in a separate chip from the CPU. The chip is typically found on the first PCI bus and integrates multiple devices. We have a very simple uclass to support PCHs. Add a few operations, such as setting up the devices on the PCH and finding the SPI controller base address. Also move it into drivers/pch/ since we will be adding a few PCH drivers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-19 03:19:17 +00:00
/**
* 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);
#endif
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