Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 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> |
Shawn Lin | 53b2728 | 2016-10-12 10:56:34 +0800 | [diff] [blame] | 17 | #include <linux/pm_runtime.h> |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 18 | #include <linux/slab.h> |
| 19 | #include <linux/mmc/host.h> |
| 20 | #include <linux/mmc/mmc.h> |
| 21 | #include <linux/mmc/dw_mmc.h> |
| 22 | #include "dw_mmc.h" |
| 23 | |
| 24 | #define PCI_BAR_NO 2 |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 25 | #define SYNOPSYS_DW_MCI_VENDOR_ID 0x700 |
| 26 | #define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107 |
| 27 | /* Defining the Capabilities */ |
| 28 | #define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED |\ |
| 29 | MMC_CAP_SD_HIGHSPEED | MMC_CAP_8_BIT_DATA |\ |
| 30 | MMC_CAP_SDIO_IRQ) |
| 31 | |
| 32 | static struct dw_mci_board pci_board_data = { |
| 33 | .num_slots = 1, |
| 34 | .caps = DW_MCI_CAPABILITIES, |
| 35 | .bus_hz = 33 * 1000 * 1000, |
| 36 | .detect_delay_ms = 200, |
| 37 | .fifo_depth = 32, |
| 38 | }; |
| 39 | |
Bill Pemberton | c3be1ef | 2012-11-19 13:23:06 -0500 | [diff] [blame] | 40 | static int dw_mci_pci_probe(struct pci_dev *pdev, |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 41 | const struct pci_device_id *entries) |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 42 | { |
| 43 | struct dw_mci *host; |
| 44 | int ret; |
| 45 | |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 46 | ret = pcim_enable_device(pdev); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 47 | if (ret) |
| 48 | return ret; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 49 | |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 50 | host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); |
| 51 | if (!host) |
| 52 | return -ENOMEM; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 53 | |
| 54 | host->irq = pdev->irq; |
| 55 | host->irq_flags = IRQF_SHARED; |
Thomas Abraham | 4a90920 | 2012-09-17 18:16:35 +0000 | [diff] [blame] | 56 | host->dev = &pdev->dev; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 57 | host->pdata = &pci_board_data; |
| 58 | |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 59 | ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev)); |
| 60 | if (ret) |
| 61 | return ret; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 62 | |
Andy Shevchenko | afeb52d | 2013-08-08 13:44:57 +0300 | [diff] [blame] | 63 | host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO]; |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 64 | |
Andy Shevchenko | 638585f | 2013-08-08 13:44:58 +0300 | [diff] [blame] | 65 | pci_set_master(pdev); |
| 66 | |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 67 | ret = dw_mci_probe(host); |
| 68 | if (ret) |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 69 | return ret; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 70 | |
Andy Shevchenko | 1395974 | 2013-06-05 12:24:12 +0300 | [diff] [blame] | 71 | pci_set_drvdata(pdev, host); |
| 72 | |
| 73 | return 0; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 74 | } |
| 75 | |
Bill Pemberton | 6e0ee71 | 2012-11-19 13:26:03 -0500 | [diff] [blame] | 76 | static void dw_mci_pci_remove(struct pci_dev *pdev) |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 77 | { |
| 78 | struct dw_mci *host = pci_get_drvdata(pdev); |
| 79 | |
| 80 | dw_mci_remove(host); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 81 | } |
| 82 | |
Shawn Lin | 53b2728 | 2016-10-12 10:56:34 +0800 | [diff] [blame] | 83 | static const struct dev_pm_ops dw_mci_pci_dev_pm_ops = { |
| 84 | SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, |
| 85 | pm_runtime_force_resume) |
| 86 | SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend, |
| 87 | dw_mci_runtime_resume, |
| 88 | NULL) |
| 89 | }; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 90 | |
Benoit Taine | 9baa3c3 | 2014-08-08 15:56:03 +0200 | [diff] [blame] | 91 | static const struct pci_device_id dw_mci_pci_id[] = { |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 92 | { PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) }, |
| 93 | {} |
| 94 | }; |
| 95 | MODULE_DEVICE_TABLE(pci, dw_mci_pci_id); |
| 96 | |
| 97 | static struct pci_driver dw_mci_pci_driver = { |
| 98 | .name = "dw_mmc_pci", |
| 99 | .id_table = dw_mci_pci_id, |
| 100 | .probe = dw_mci_pci_probe, |
Greg Kroah-Hartman | 4e608e4 | 2012-12-21 15:05:47 -0800 | [diff] [blame] | 101 | .remove = dw_mci_pci_remove, |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 102 | .driver = { |
Shawn Lin | 53b2728 | 2016-10-12 10:56:34 +0800 | [diff] [blame] | 103 | .pm = &dw_mci_pci_dev_pm_ops, |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 104 | }, |
| 105 | }; |
| 106 | |
Sachin Kamat | 350e3e0 | 2012-08-27 11:59:17 +0530 | [diff] [blame] | 107 | module_pci_driver(dw_mci_pci_driver); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 108 | |
| 109 | MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver"); |
| 110 | MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>"); |
| 111 | MODULE_LICENSE("GPL v2"); |