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- /*
- * NAND Flash Controller Device Driver
- * Copyright © 2009-2010, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/pci.h>
- #include <linux/slab.h>
- #include "denali.h"
- #define DENALI_NAND_NAME "denali-nand-pci"
- /* List of platforms this NAND controller has be integrated into */
- static const struct pci_device_id denali_pci_ids[] = {
- { PCI_VDEVICE(INTEL, 0x0701), INTEL_CE4100 },
- { PCI_VDEVICE(INTEL, 0x0809), INTEL_MRST },
- { /* end: all zeroes */ }
- };
- MODULE_DEVICE_TABLE(pci, denali_pci_ids);
- static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
- {
- int ret;
- resource_size_t csr_base, mem_base;
- unsigned long csr_len, mem_len;
- struct denali_nand_info *denali;
- denali = devm_kzalloc(&dev->dev, sizeof(*denali), GFP_KERNEL);
- if (!denali)
- return -ENOMEM;
- ret = pcim_enable_device(dev);
- if (ret) {
- dev_err(&dev->dev, "Spectra: pci_enable_device failed.\n");
- return ret;
- }
- if (id->driver_data == INTEL_CE4100) {
- denali->platform = INTEL_CE4100;
- mem_base = pci_resource_start(dev, 0);
- mem_len = pci_resource_len(dev, 1);
- csr_base = pci_resource_start(dev, 1);
- csr_len = pci_resource_len(dev, 1);
- } else {
- denali->platform = INTEL_MRST;
- csr_base = pci_resource_start(dev, 0);
- csr_len = pci_resource_len(dev, 0);
- mem_base = pci_resource_start(dev, 1);
- mem_len = pci_resource_len(dev, 1);
- if (!mem_len) {
- mem_base = csr_base + csr_len;
- mem_len = csr_len;
- }
- }
- pci_set_master(dev);
- denali->dev = &dev->dev;
- denali->irq = dev->irq;
- ret = pci_request_regions(dev, DENALI_NAND_NAME);
- if (ret) {
- dev_err(&dev->dev, "Spectra: Unable to request memory regions\n");
- return ret;
- }
- denali->flash_reg = ioremap_nocache(csr_base, csr_len);
- if (!denali->flash_reg) {
- dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
- return -ENOMEM;
- }
- denali->flash_mem = ioremap_nocache(mem_base, mem_len);
- if (!denali->flash_mem) {
- dev_err(&dev->dev, "Spectra: ioremap_nocache failed!");
- ret = -ENOMEM;
- goto failed_remap_reg;
- }
- ret = denali_init(denali);
- if (ret)
- goto failed_remap_mem;
- pci_set_drvdata(dev, denali);
- return 0;
- failed_remap_mem:
- iounmap(denali->flash_mem);
- failed_remap_reg:
- iounmap(denali->flash_reg);
- return ret;
- }
- /* driver exit point */
- static void denali_pci_remove(struct pci_dev *dev)
- {
- struct denali_nand_info *denali = pci_get_drvdata(dev);
- denali_remove(denali);
- iounmap(denali->flash_reg);
- iounmap(denali->flash_mem);
- }
- static struct pci_driver denali_pci_driver = {
- .name = DENALI_NAND_NAME,
- .id_table = denali_pci_ids,
- .probe = denali_pci_probe,
- .remove = denali_pci_remove,
- };
- module_pci_driver(denali_pci_driver);
- MODULE_DESCRIPTION("PCI driver for Denali NAND controller");
- MODULE_AUTHOR("Intel Corporation and its suppliers");
- MODULE_LICENSE("GPL v2");
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