^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Synopsys DesignWare Multimedia Card Interface driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2009 NXP Semiconductors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mmc/host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/mmc/mmc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "dw_mmc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "dw_mmc-pltfm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int dw_mci_pltfm_register(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) const struct dw_mci_drv_data *drv_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct dw_mci *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct resource *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) if (!host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) host->irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (host->irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return host->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) host->drv_data = drv_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) host->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) host->irq_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) host->pdata = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) host->regs = devm_ioremap_resource(&pdev->dev, regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (IS_ERR(host->regs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return PTR_ERR(host->regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* Get registers' physical base address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) host->phy_regs = regs->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) platform_set_drvdata(pdev, host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return dw_mci_probe(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) const struct dev_pm_ops dw_mci_pltfm_pmops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) pm_runtime_force_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dw_mci_runtime_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static const struct of_device_id dw_mci_pltfm_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) { .compatible = "snps,dw-mshc", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) { .compatible = "altr,socfpga-dw-mshc", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) { .compatible = "img,pistachio-dw-mshc", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static int dw_mci_pltfm_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) const struct dw_mci_drv_data *drv_data = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) const struct of_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) if (pdev->dev.of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) drv_data = match->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return dw_mci_pltfm_register(pdev, drv_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int dw_mci_pltfm_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct dw_mci *host = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) dw_mci_remove(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static struct platform_driver dw_mci_pltfm_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .probe = dw_mci_pltfm_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .remove = dw_mci_pltfm_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .name = "dw_mmc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .probe_type = PROBE_PREFER_ASYNCHRONOUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .of_match_table = dw_mci_pltfm_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .pm = &dw_mci_pltfm_pmops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) module_platform_driver(dw_mci_pltfm_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) MODULE_AUTHOR("NXP Semiconductor VietNam");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) MODULE_AUTHOR("Imagination Technologies Ltd");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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