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coreboot-kgpe-d16/src/southbridge/intel/ibexpeak/smbus.c

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src/southbridge: Use SPDX for GPL-2.0-only files Done with sed and God Lines. Only done for C-like code for now. Change-Id: I5b00b3e38edda90f35f0679cd4171a3499288f24 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40059 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-04-02 23:49:05 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
#include <device/device.h>
#include <device/path.h>
#include <device/smbus.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
device,sb/intel: Move SMBus host controller prototypes Also change some of the types to match the register widths of the controller. It is expected that these prototypes will be used with SMBus host controllers inside AMD chipsets as well, thus the change of location. Change-Id: I88fe834f3eee7b7bfeff02f91a1c25bb5aee9b65 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38226 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-06 11:31:34 +01:00
#include <device/smbus_host.h>
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
#include "pch.h"
sb/intel/ibexpeak: Get rid of device_t Use of device_t has been abandoned in ramstage. Change-Id: I7d9d0a205f9a650eb87bc8f90f2a28a5c4b2891c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26259 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-05-13 13:40:39 +02:00
static void pch_smbus_init(struct device *dev)
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
{
struct resource *res;
u16 reg16;
/* Enable clock gating */
reg16 = pci_read_config32(dev, 0x80);
reg16 &= ~((1 << 8)|(1 << 10)|(1 << 12)|(1 << 14));
pci_write_config32(dev, 0x80, reg16);
/* Set Receive Slave Address */
res = find_resource(dev, PCI_BASE_ADDRESS_4);
if (res)
sb/intel/common: Add smbus_set_slave_addr() Change-Id: I7dddb61fab00e0f4f67d4eebee0cfe8dcd99f4ab Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38230 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-06 18:00:31 +01:00
smbus_set_slave_addr(res->base, SMBUS_SLAVE_ADDR);
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
}
sb/intel/ibexpeak: Get rid of device_t Use of device_t has been abandoned in ramstage. Change-Id: I7d9d0a205f9a650eb87bc8f90f2a28a5c4b2891c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26259 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-05-13 13:40:39 +02:00
static int lsmbus_read_byte(struct device *dev, u8 address)
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
{
u16 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20);
return do_smbus_read_byte(res->base, device, address);
}
sb/intel/ibexpeak: Get rid of device_t Use of device_t has been abandoned in ramstage. Change-Id: I7d9d0a205f9a650eb87bc8f90f2a28a5c4b2891c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26259 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-05-13 13:40:39 +02:00
static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
ibexpeak: add smbus_write_byte Change-Id: I045f1cff794d3c965c502fff98dd2442af2143bd Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4839 Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
2014-01-27 23:57:44 +01:00
{
u16 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20);
return do_smbus_write_byte(res->base, device, address, val);
}
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
static struct smbus_bus_operations lops_smbus_bus = {
.read_byte = lsmbus_read_byte,
ibexpeak: add smbus_write_byte Change-Id: I045f1cff794d3c965c502fff98dd2442af2143bd Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4839 Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
2014-01-27 23:57:44 +01:00
.write_byte = lsmbus_write_byte,
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
};
static struct pci_operations smbus_pci_ops = {
{northbridge, soc, southbridge}/intel: Make use of pci_dev_set_subsystem() This patch removes local definitions of sub_system function and make use of common function pci_dev_set_subsystem(). Change-Id: I91982597fdf586ab514bec3d8e4d09f2565fe56d Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31982 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: David Guckian Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-03-20 09:59:47 +01:00
.set_subsystem = pci_dev_set_subsystem,
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
};
sb/intel/ibexpeak: Get rid of device_t Use of device_t has been abandoned in ramstage. Change-Id: I7d9d0a205f9a650eb87bc8f90f2a28a5c4b2891c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26259 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-05-13 13:40:39 +02:00
static void smbus_read_resources(struct device *dev)
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
{
struct resource *res = new_resource(dev, PCI_BASE_ADDRESS_4);
res->base = SMBUS_IO_BASE;
res->size = 32;
res->limit = res->base + res->size - 1;
res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_RESERVE |
IORESOURCE_STORED | IORESOURCE_ASSIGNED;
/* Also add MMIO resource */
res = pci_get_resource(dev, PCI_BASE_ADDRESS_0);
}
static struct device_operations smbus_ops = {
.read_resources = smbus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
devicetree: Discriminate device ops scan_bus() Use of scan_static_bus() and tree traversals is somewhat convoluted. Start cleaning this up by assigning each path type with separate static scan_bus() function. For ME, SMBus and LPC paths a bus cannot expose bridges, as those would add to the number of encountered PCI buses. Change-Id: I8bb11450516faad4fa33b8f69bce5b9978ec75e5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8534 Tested-by: build bot (Jenkins) Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
2015-02-26 19:47:47 +01:00
.scan_bus = scan_smbus,
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
.init = pch_smbus_init,
.ops_smbus_bus = &lops_smbus_bus,
.ops_pci = &smbus_pci_ops,
};
sb/ibexpeak: Use macros instead of hard-coded IDs This patch replaces hard-coded PCI IDs with macros from pci_ids.h and adds the related IDs to it. The resulting binary doesn't differ from the one without this patch. Used documents: - Intel 322170 Change-Id: I3326f142d483f5008fb2ac878f30c1a3a72f500f Signed-off-by: Felix Singer <felixsinger@posteo.net> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37116 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Michael Niewöhner
2019-11-21 21:23:32 +01:00
static const unsigned short pci_device_ids[] = {
0x1c22,
0x1e22,
PCI_DID_INTEL_IBEXPEAK_SMBUS,
0
};
Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-11-13 17:53:38 +01:00
static const struct pci_driver pch_smbus __pci_driver = {
.ops = &smbus_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
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