321111774c
Add SPI driver code for the SPI flash controller, including both fast_spi and generic_spi. Change-Id: Ie45146721f39d3cec20ff5136adf8925c75da1cd Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/21052 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.corp-partner.google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
71 lines
2 KiB
C
71 lines
2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2017 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <device/device.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/spi.h>
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#include <intelblocks/fast_spi.h>
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#include <intelblocks/gspi.h>
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#include <soc/ramstage.h>
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#include <soc/pci_devs.h>
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#include <spi-generic.h>
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const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = {
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{ .ctrlr = &fast_spi_flash_ctrlr, .bus_start = 0, .bus_end = 0 },
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#if !ENV_SMM
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{ .ctrlr = &gspi_ctrlr, .bus_start = 1,
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.bus_end = 1 + (CONFIG_SOC_INTEL_COMMON_BLOCK_GSPI_MAX - 1)},
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#endif
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};
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const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map);
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#if ENV_RAMSTAGE
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static int spi_dev_to_bus(struct device *dev)
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{
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return spi_devfn_to_bus(dev->path.pci.devfn);
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}
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static struct spi_bus_operations spi_bus_ops = {
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.dev_to_bus = &spi_dev_to_bus,
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};
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static struct device_operations spi_dev_ops = {
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.read_resources = &pci_dev_read_resources,
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.set_resources = &pci_dev_set_resources,
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.enable_resources = &pci_dev_enable_resources,
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.scan_bus = &scan_generic_bus,
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.ops_spi_bus = &spi_bus_ops,
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};
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static const unsigned short pci_device_ids[] = {
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PCI_DEVICE_ID_INTEL_CNL_HWSEQ_SPI,
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PCI_DEVICE_ID_INTEL_CNL_SPI0,
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PCI_DEVICE_ID_INTEL_CNL_SPI1,
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PCI_DEVICE_ID_INTEL_CNL_SPI2,
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0
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};
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static const struct pci_driver pch_spi __pci_driver = {
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.ops = &spi_dev_ops,
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.vendor = PCI_VENDOR_ID_INTEL,
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.devices = pci_device_ids,
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};
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#endif
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