^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Marvell PATA driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * For the moment we drive the PATA port in legacy mode. That
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * isn't making full use of the device functionality but it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * easy to get working.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * (c) 2006 Red Hat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/libata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/ata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define DRV_NAME "pata_marvell"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define DRV_VERSION "0.1.6"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * marvell_pata_active - check if PATA is active
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * @pdev: PCI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Returns 1 if the PATA port may be active. We know how to check this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * for the 6145 but not the other devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static int marvell_pata_active(struct pci_dev *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u32 devices;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) void __iomem *barp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* We don't yet know how to do this for other devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (pdev->device != 0x6145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) barp = pci_iomap(pdev, 5, 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (barp == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) printk("BAR5:");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) for(i = 0; i <= 0x0F; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) printk("%02X:%02X ", i, ioread8(barp + i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) devices = ioread32(barp + 0x0C);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) pci_iounmap(pdev, barp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (devices & 0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * marvell_pre_reset - probe begin
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * @link: link
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * @deadline: deadline jiffies for the operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * Perform the PATA port setup we need.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static int marvell_pre_reset(struct ata_link *link, unsigned long deadline)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct ata_port *ap = link->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct pci_dev *pdev = to_pci_dev(ap->host->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (pdev->device == 0x6145 && ap->port_no == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) !marvell_pata_active(pdev)) /* PATA enable ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return ata_sff_prereset(link, deadline);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static int marvell_cable_detect(struct ata_port *ap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* Cable type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) switch(ap->port_no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return ATA_CBL_PATA40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return ATA_CBL_PATA80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) case 1: /* Legacy SATA port */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return ATA_CBL_SATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return 0; /* Our BUG macro needs the right markup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* No PIO or DMA methods needed for this device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static struct scsi_host_template marvell_sht = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) ATA_BMDMA_SHT(DRV_NAME),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static struct ata_port_operations marvell_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .inherits = &ata_bmdma_port_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .cable_detect = marvell_cable_detect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .prereset = marvell_pre_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * marvell_init_one - Register Marvell ATA PCI device with kernel services
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * @pdev: PCI device to register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * @ent: Entry in marvell_pci_tbl matching with @pdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * Called from kernel PCI layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * Inherited from PCI layer (may sleep).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * Zero on success, or -ERRNO value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static const struct ata_port_info info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .flags = ATA_FLAG_SLAVE_POSS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .pio_mask = ATA_PIO4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .mwdma_mask = ATA_MWDMA2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .udma_mask = ATA_UDMA5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .port_ops = &marvell_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static const struct ata_port_info info_sata = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /* Slave possible as its magically mapped not real */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .flags = ATA_FLAG_SLAVE_POSS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .pio_mask = ATA_PIO4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .mwdma_mask = ATA_MWDMA2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .udma_mask = ATA_UDMA6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .port_ops = &marvell_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) const struct ata_port_info *ppi[] = { &info, &info_sata };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (pdev->device == 0x6101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) ppi[1] = &ata_dummy_port_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #if IS_ENABLED(CONFIG_SATA_AHCI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!marvell_pata_active(pdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) printk(KERN_INFO DRV_NAME ": PATA port not active, deferring to AHCI driver.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return ata_pci_bmdma_init_one(pdev, ppi, &marvell_sht, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static const struct pci_device_id marvell_pci_tbl[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) { PCI_DEVICE(0x11AB, 0x6101), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) { PCI_DEVICE(0x11AB, 0x6121), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) { PCI_DEVICE(0x11AB, 0x6123), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) { PCI_DEVICE(0x11AB, 0x6145), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) { PCI_DEVICE(0x1B4B, 0x91A0), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) { PCI_DEVICE(0x1B4B, 0x91A4), },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) { } /* terminate list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static struct pci_driver marvell_pci_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .name = DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) .id_table = marvell_pci_tbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .probe = marvell_init_one,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .remove = ata_pci_remove_one,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .suspend = ata_pci_device_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .resume = ata_pci_device_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) module_pci_driver(marvell_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) MODULE_AUTHOR("Alan Cox");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) MODULE_DESCRIPTION("SCSI low-level driver for Marvell ATA in legacy mode");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) MODULE_DEVICE_TABLE(pci, marvell_pci_tbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) MODULE_VERSION(DRV_VERSION);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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