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u-boot/drivers/pch/pch-uclass.c

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dm: x86: Add a uclass for a Platform Controller Hub Add a simple uclass for this chip which is often found in x86 systems where the CPU is a separate device. The device can have children, so make it scan the device tree for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-26 15:29:27 +00:00
/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
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
#include <pch.h>
dm: x86: Add a uclass for a Platform Controller Hub Add a simple uclass for this chip which is often found in x86 systems where the CPU is a separate device. The device can have children, so make it scan the device tree for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-26 15:29:27 +00:00
x86: Add some missing global_data declarations in files that use gd Some files use global_data but don't declare it. Fix this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-07-31 15:31:31 +00:00
DECLARE_GLOBAL_DATA_PTR;
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
{
struct pch_ops *ops = pch_get_ops(dev);
*sbasep = 0;
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
if (!ops->get_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
return -ENOSYS;
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
return ops->get_spi_base(dev, 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
}
int pch_set_spi_protect(struct udevice *dev, bool protect)
{
struct pch_ops *ops = pch_get_ops(dev);
if (!ops->set_spi_protect)
return -ENOSYS;
return ops->set_spi_protect(dev, protect);
}
dm: pch: Add get_gpio_base op x86 GPIO registers are accessed via I/O port whose base address is configured in a PCI configuration register on the PCH device. Add an op get_gpio_base to get the GPIO base address from PCH. 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 09:40:43 +00:00
int pch_get_gpio_base(struct udevice *dev, u32 *gbasep)
{
struct pch_ops *ops = pch_get_ops(dev);
*gbasep = 0;
if (!ops->get_gpio_base)
return -ENOSYS;
return ops->get_gpio_base(dev, gbasep);
}
dm: pch: Add get_io_base op On some newer chipset (eg: BayTrail), there is an IO base address register on the PCH device which configures the base address of a memory-mapped I/O controller. 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 09:40:45 +00:00
int pch_get_io_base(struct udevice *dev, u32 *iobasep)
{
struct pch_ops *ops = pch_get_ops(dev);
*iobasep = 0;
if (!ops->get_io_base)
return -ENOSYS;
return ops->get_io_base(dev, iobasep);
}
dm: x86: Add a uclass for a Platform Controller Hub Add a simple uclass for this chip which is often found in x86 systems where the CPU is a separate device. The device can have children, so make it scan the device tree for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-26 15:29:27 +00:00
UCLASS_DRIVER(pch) = {
.id = UCLASS_PCH,
.name = "pch",
dm: Use dm_scan_fdt_dev() directly where possible Quite a few places have a bind() method which just calls dm_scan_fdt_dev(). We may as well call dm_scan_fdt_dev() directly. Update the code to do this. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-05 23:10:10 +00:00
.post_bind = dm_scan_fdt_dev,
dm: x86: Add a uclass for a Platform Controller Hub Add a simple uclass for this chip which is often found in x86 systems where the CPU is a separate device. The device can have children, so make it scan the device tree for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-26 15:29:27 +00:00
};
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