5f73432737
Using `pci_dev_read_resources` works just as well on bd82x6x (the allocator does the same) and allows dropping the i82801gx check. Change-Id: I1cb05131a82ebb7c45827eff8e09e445d9c695b3 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48538 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
78 lines
2 KiB
C
78 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <device/device.h>
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#include <device/path.h>
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#include <device/smbus.h>
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#include <device/pci.h>
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#include <device/pci_def.h>
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#include <device/pci_ids.h>
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#include <device/smbus_host.h>
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#include <southbridge/intel/common/smbus_ops.h>
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static int lsmbus_read_byte(struct device *dev, u8 address)
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{
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u16 device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
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return do_smbus_read_byte(res->base, device, address);
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}
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static int lsmbus_write_byte(struct device *dev, u8 address, u8 data)
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{
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u16 device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
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return do_smbus_write_byte(res->base, device, address, data);
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}
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static int lsmbus_block_write(struct device *dev, u8 cmd, u8 bytes, const u8 *buf)
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{
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u16 device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
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return do_smbus_block_write(res->base, device, cmd, bytes, buf);
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}
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static int lsmbus_block_read(struct device *dev, u8 cmd, u8 bytes, u8 *buf)
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{
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u16 device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
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return do_smbus_block_read(res->base, device, cmd, bytes, buf);
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}
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struct smbus_bus_operations lops_smbus_bus = {
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.read_byte = lsmbus_read_byte,
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.write_byte = lsmbus_write_byte,
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.block_read = lsmbus_block_read,
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.block_write = lsmbus_block_write,
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};
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void smbus_read_resources(struct device *dev)
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{
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pci_dev_read_resources(dev);
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struct resource *res = new_resource(dev, PCI_BASE_ADDRESS_4);
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res->base = CONFIG_FIXED_SMBUS_IO_BASE;
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res->size = 32;
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res->limit = res->base + res->size - 1;
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res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_RESERVE |
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IORESOURCE_STORED | IORESOURCE_ASSIGNED;
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}
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