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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> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/mmc/host.h> | |
19 | #include <linux/mmc/mmc.h> | |
20 | #include <linux/mmc/dw_mmc.h> | |
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 = { | |
32 | .num_slots = 1, | |
33 | .caps = DW_MCI_CAPABILITIES, | |
34 | .bus_hz = 33 * 1000 * 1000, | |
35 | .detect_delay_ms = 200, | |
36 | .fifo_depth = 32, | |
37 | }; | |
38 | ||
c3be1efd | 39 | static int dw_mci_pci_probe(struct pci_dev *pdev, |
13959741 | 40 | const struct pci_device_id *entries) |
62ca8034 SH |
41 | { |
42 | struct dw_mci *host; | |
43 | int ret; | |
44 | ||
13959741 | 45 | ret = pcim_enable_device(pdev); |
62ca8034 SH |
46 | if (ret) |
47 | return ret; | |
62ca8034 | 48 | |
13959741 AS |
49 | host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); |
50 | if (!host) | |
51 | return -ENOMEM; | |
62ca8034 SH |
52 | |
53 | host->irq = pdev->irq; | |
54 | host->irq_flags = IRQF_SHARED; | |
4a90920c | 55 | host->dev = &pdev->dev; |
62ca8034 SH |
56 | host->pdata = &pci_board_data; |
57 | ||
13959741 AS |
58 | ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev)); |
59 | if (ret) | |
60 | return ret; | |
61 | ||
afeb52d6 | 62 | host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO]; |
62ca8034 | 63 | |
638585f6 AS |
64 | pci_set_master(pdev); |
65 | ||
62ca8034 SH |
66 | ret = dw_mci_probe(host); |
67 | if (ret) | |
13959741 AS |
68 | return ret; |
69 | ||
70 | pci_set_drvdata(pdev, host); | |
62ca8034 | 71 | |
13959741 | 72 | return 0; |
62ca8034 SH |
73 | } |
74 | ||
6e0ee714 | 75 | static void dw_mci_pci_remove(struct pci_dev *pdev) |
62ca8034 SH |
76 | { |
77 | struct dw_mci *host = pci_get_drvdata(pdev); | |
78 | ||
79 | dw_mci_remove(host); | |
62ca8034 SH |
80 | } |
81 | ||
82 | #ifdef CONFIG_PM_SLEEP | |
83 | static int dw_mci_pci_suspend(struct device *dev) | |
84 | { | |
62ca8034 SH |
85 | struct pci_dev *pdev = to_pci_dev(dev); |
86 | struct dw_mci *host = pci_get_drvdata(pdev); | |
87 | ||
dd369800 | 88 | return dw_mci_suspend(host); |
62ca8034 SH |
89 | } |
90 | ||
91 | static int dw_mci_pci_resume(struct device *dev) | |
92 | { | |
62ca8034 SH |
93 | struct pci_dev *pdev = to_pci_dev(dev); |
94 | struct dw_mci *host = pci_get_drvdata(pdev); | |
95 | ||
dd369800 | 96 | return dw_mci_resume(host); |
62ca8034 SH |
97 | } |
98 | #else | |
99 | #define dw_mci_pci_suspend NULL | |
100 | #define dw_mci_pci_resume NULL | |
101 | #endif /* CONFIG_PM_SLEEP */ | |
102 | ||
103 | static SIMPLE_DEV_PM_OPS(dw_mci_pci_pmops, dw_mci_pci_suspend, dw_mci_pci_resume); | |
104 | ||
9baa3c34 | 105 | static const struct pci_device_id dw_mci_pci_id[] = { |
62ca8034 SH |
106 | { PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) }, |
107 | {} | |
108 | }; | |
109 | MODULE_DEVICE_TABLE(pci, dw_mci_pci_id); | |
110 | ||
111 | static struct pci_driver dw_mci_pci_driver = { | |
112 | .name = "dw_mmc_pci", | |
113 | .id_table = dw_mci_pci_id, | |
114 | .probe = dw_mci_pci_probe, | |
4e608e4e | 115 | .remove = dw_mci_pci_remove, |
62ca8034 SH |
116 | .driver = { |
117 | .pm = &dw_mci_pci_pmops | |
118 | }, | |
119 | }; | |
120 | ||
350e3e00 | 121 | module_pci_driver(dw_mci_pci_driver); |
62ca8034 SH |
122 | |
123 | MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver"); | |
124 | MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>"); | |
125 | MODULE_LICENSE("GPL v2"); |