projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 985b1aa0 MR |
1 | /* |
| 2 | * sdhci-dove.c Support for SDHCI on Marvell's Dove SoC | |
| 3 | * | |
| 4 | * Author: Saeed Bishara <saeed@marvell.com> | |
| 5 | * Mike Rapoport <mike@compulab.co.il> | |
| 6 | * Based on sdhci-cns3xxx.c | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 20 | */ | |
| 21 | ||
| 22 | #include <linux/io.h> | |
| 23 | #include <linux/mmc/host.h> | |
| 24 | ||
| 985b1aa0 MR |
25 | #include "sdhci-pltfm.h" |
| 26 | ||
| 27 | static u16 sdhci_dove_readw(struct sdhci_host *host, int reg) | |
| 28 | { | |
| 29 | u16 ret; | |
| 30 | ||
| 31 | switch (reg) { | |
| 32 | case SDHCI_HOST_VERSION: | |
| 33 | case SDHCI_SLOT_INT_STATUS: | |
| 34 | /* those registers don't exist */ | |
| 35 | return 0; | |
| 36 | default: | |
| 37 | ret = readw(host->ioaddr + reg); | |
| 38 | } | |
| 39 | return ret; | |
| 40 | } | |
| 41 | ||
| 42 | static u32 sdhci_dove_readl(struct sdhci_host *host, int reg) | |
| 43 | { | |
| 44 | u32 ret; | |
| 45 | ||
| 46 | switch (reg) { | |
| 47 | case SDHCI_CAPABILITIES: | |
| 48 | ret = readl(host->ioaddr + reg); | |
| 49 | /* Mask the support for 3.0V */ | |
| 50 | ret &= ~SDHCI_CAN_VDD_300; | |
| 51 | break; | |
| 52 | default: | |
| 53 | ret = readl(host->ioaddr + reg); | |
| 54 | } | |
| 55 | return ret; | |
| 56 | } | |
| 57 | ||
| 58 | static struct sdhci_ops sdhci_dove_ops = { | |
| 59 | .read_w = sdhci_dove_readw, | |
| 60 | .read_l = sdhci_dove_readl, | |
| 61 | }; | |
| 62 | ||
| 85d6509d | 63 | static struct sdhci_pltfm_data sdhci_dove_pdata = { |
| 985b1aa0 MR |
64 | .ops = &sdhci_dove_ops, |
| 65 | .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | | |
| 66 | SDHCI_QUIRK_NO_BUSY_IRQ | | |
| 67 | SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | | |
| 68 | SDHCI_QUIRK_FORCE_DMA, | |
| 69 | }; | |
| 85d6509d SG |
70 | |
| 71 | static int __devinit sdhci_dove_probe(struct platform_device *pdev) | |
| 72 | { | |
| 73 | return sdhci_pltfm_register(pdev, &sdhci_dove_pdata); | |
| 74 | } | |
| 75 | ||
| 76 | static int __devexit sdhci_dove_remove(struct platform_device *pdev) | |
| 77 | { | |
| 78 | return sdhci_pltfm_unregister(pdev); | |
| 79 | } | |
| 80 | ||
| 81 | static struct platform_driver sdhci_dove_driver = { | |
| 82 | .driver = { | |
| 83 | .name = "sdhci-dove", | |
| 84 | .owner = THIS_MODULE, | |
| 29495aa0 | 85 | .pm = SDHCI_PLTFM_PMOPS, |
| 85d6509d SG |
86 | }, |
| 87 | .probe = sdhci_dove_probe, | |
| 88 | .remove = __devexit_p(sdhci_dove_remove), | |
| 85d6509d SG |
89 | }; |
| 90 | ||
| 91 | static int __init sdhci_dove_init(void) | |
| 92 | { | |
| 93 | return platform_driver_register(&sdhci_dove_driver); | |
| 94 | } | |
| 95 | module_init(sdhci_dove_init); | |
| 96 | ||
| 97 | static void __exit sdhci_dove_exit(void) | |
| 98 | { | |
| 99 | platform_driver_unregister(&sdhci_dove_driver); | |
| 100 | } | |
| 101 | module_exit(sdhci_dove_exit); | |
| 102 | ||
| 103 | MODULE_DESCRIPTION("SDHCI driver for Dove"); | |
| 104 | MODULE_AUTHOR("Saeed Bishara <saeed@marvell.com>, " | |
| 105 | "Mike Rapoport <mike@compulab.co.il>"); | |
| 106 | MODULE_LICENSE("GPL v2"); |