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62ca8034 SH |
1 | /* |
2 | * Synopsys DesignWare Multimedia Card PCI Interface driver | |
3 | * | |
4 | * Copyright (C) 2012 Vayavya Labs Pvt. Ltd. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/interrupt.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/irq.h> | |
16 | #include <linux/pci.h> | |
53b27288 | 17 | #include <linux/pm_runtime.h> |
62ca8034 SH |
18 | #include <linux/slab.h> |
19 | #include <linux/mmc/host.h> | |
20 | #include <linux/mmc/mmc.h> | |
62ca8034 SH |
21 | #include "dw_mmc.h" |
22 | ||
23 | #define PCI_BAR_NO 2 | |
62ca8034 SH |
24 | #define SYNOPSYS_DW_MCI_VENDOR_ID 0x700 |
25 | #define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107 | |
26 | /* Defining the Capabilities */ | |
27 | #define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED |\ | |
28 | MMC_CAP_SD_HIGHSPEED | MMC_CAP_8_BIT_DATA |\ | |
29 | MMC_CAP_SDIO_IRQ) | |
30 | ||
31 | static struct dw_mci_board pci_board_data = { | |
62ca8034 SH |
32 | .caps = DW_MCI_CAPABILITIES, |
33 | .bus_hz = 33 * 1000 * 1000, | |
34 | .detect_delay_ms = 200, | |
35 | .fifo_depth = 32, | |
36 | }; | |
37 | ||
c3be1efd | 38 | static int dw_mci_pci_probe(struct pci_dev *pdev, |
13959741 | 39 | const struct pci_device_id *entries) |
62ca8034 SH |
40 | { |
41 | struct dw_mci *host; | |
42 | int ret; | |
43 | ||
13959741 | 44 | ret = pcim_enable_device(pdev); |
62ca8034 SH |
45 | if (ret) |
46 | return ret; | |
62ca8034 | 47 | |
13959741 AS |
48 | host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); |
49 | if (!host) | |
50 | return -ENOMEM; | |
62ca8034 SH |
51 | |
52 | host->irq = pdev->irq; | |
53 | host->irq_flags = IRQF_SHARED; | |
4a90920c | 54 | host->dev = &pdev->dev; |
62ca8034 SH |
55 | host->pdata = &pci_board_data; |
56 | ||
13959741 AS |
57 | ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev)); |
58 | if (ret) | |
59 | return ret; | |
60 | ||
afeb52d6 | 61 | host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO]; |
62ca8034 | 62 | |
638585f6 AS |
63 | pci_set_master(pdev); |
64 | ||
62ca8034 SH |
65 | ret = dw_mci_probe(host); |
66 | if (ret) | |
13959741 AS |
67 | return ret; |
68 | ||
69 | pci_set_drvdata(pdev, host); | |
62ca8034 | 70 | |
13959741 | 71 | return 0; |
62ca8034 SH |
72 | } |
73 | ||
6e0ee714 | 74 | static void dw_mci_pci_remove(struct pci_dev *pdev) |
62ca8034 SH |
75 | { |
76 | struct dw_mci *host = pci_get_drvdata(pdev); | |
77 | ||
78 | dw_mci_remove(host); | |
62ca8034 SH |
79 | } |
80 | ||
53b27288 SL |
81 | static const struct dev_pm_ops dw_mci_pci_dev_pm_ops = { |
82 | SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, | |
83 | pm_runtime_force_resume) | |
84 | SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend, | |
85 | dw_mci_runtime_resume, | |
86 | NULL) | |
87 | }; | |
62ca8034 | 88 | |
9baa3c34 | 89 | static const struct pci_device_id dw_mci_pci_id[] = { |
62ca8034 SH |
90 | { PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) }, |
91 | {} | |
92 | }; | |
93 | MODULE_DEVICE_TABLE(pci, dw_mci_pci_id); | |
94 | ||
95 | static struct pci_driver dw_mci_pci_driver = { | |
96 | .name = "dw_mmc_pci", | |
97 | .id_table = dw_mci_pci_id, | |
98 | .probe = dw_mci_pci_probe, | |
4e608e4e | 99 | .remove = dw_mci_pci_remove, |
62ca8034 | 100 | .driver = { |
53b27288 | 101 | .pm = &dw_mci_pci_dev_pm_ops, |
62ca8034 SH |
102 | }, |
103 | }; | |
104 | ||
350e3e00 | 105 | module_pci_driver(dw_mci_pci_driver); |
62ca8034 SH |
106 | |
107 | MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver"); | |
108 | MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>"); | |
109 | MODULE_LICENSE("GPL v2"); |