diff options
Diffstat (limited to 'target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c')
| -rw-r--r-- | target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c b/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c deleted file mode 100644 index 707e8703bf..0000000000 --- a/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c +++ /dev/null @@ -1,234 +0,0 @@ -/* - * Support for Gemini PATA - * - * Copyright (C) 2009 Janos Laube <janos.dev@gmail.com> - * Copyright (C) 2010 Frederic Pecourt <opengemini@free.fr> - * Copyright (C) 2011 Tobias Waldvogel <tobias.waldvogel@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -/* Values of IOMUX - * 26:24 bits is "IDE IO Select" - * 111:100 - Reserved - * 011 - ata0 <-> sata0, sata1; bring out ata1 - * 010 - ata1 <-> sata1, sata0; bring out ata0 - * 001 - ata0 <-> sata0, ata1 <-> sata1; bring out ata1 - * 000 - ata0 <-> sata0, ata1 <-> sata1; bring out ata0 - * - */ - -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/libata.h> -#include <linux/leds.h> - -#include <mach/hardware.h> -#include <mach/global_reg.h> - -#define DRV_NAME "pata-gemini" - -#define PATA_GEMINI_PORTS 1 - -#define PIO_TIMING_REG 0x10 -#define MDMA_TIMING_REG 0x11 -#define UDMA_TIMING0_REG 0x12 -#define UDMA_TIMING1_REG 0x13 -#define CLK_MOD_REG 0x14 - -#define CLK_MOD_66M_DEV0_BIT 0 -#define CLK_MOD_66M_DEV1_BIT 1 -#define CLK_MOD_UDMA_DEV0_BIT 4 -#define CLK_MOD_UDMA_DEV1_BIT 5 - -#define CLK_MOD_66M_DEV0 (1 << CLK_MOD_66M_DEV0_BIT) -#define CLK_MOD_66M_DEV1 (1 << CLK_MOD_66M_DEV1_BIT) -#define CLK_MOD_UDMA_DEV0 (1 << CLK_MOD_UDMA_DEV0_BIT) -#define CLK_MOD_UDMA_DEV1 (1 << CLK_MOD_UDMA_DEV1_BIT) - -#define SATA_ENABLE_PDEV_MASK 0x01 -#define SATA_ENABLE_PDEV_PM 0x02 -#define SATA_ENABLE_PDEV_ADDED 0x04 -#define SATA_ENABLE_PDEV_REMOVED 0x08 -#define SATA_ENABLE_SDEV_MASK 0x10 -#define SATA_ENABLE_SDEV_PM 0x20 -#define SATA_ENABLE_SDEV_ADDED 0x40 -#define SATA_ENABLE_SDEV_REMOVED 0x80 - -MODULE_AUTHOR("Janos Laube <janos.dev@gmail.com>"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); - -static unsigned char PIO_TIMING[5] = { - 0xaa, 0xa3, 0xa1, 0x33, 0x31 -}; - -static unsigned char TIMING_MW_DMA[4][2] = { - { 0x44, 1 }, // 480 4.2 - { 0x42, 1 }, // 150 13.3 - { 0x31, 1 }, // 120 16.7 - { 0x21, 1 }, // 100 20 -}; - -static unsigned char TIMING_UDMA[7][2] = { - { 0x33, 0 }, //240 16.7 - { 0x31, 0 }, //160 25 - { 0x21, 0 }, //120 33.3 - { 0x21, 1 }, //90 44.4 - { 0x11, 1 }, //60 66.7 - { 0x11 | 0x80, 0 }, //40 100 - { 0x11 | 0x80, 1 }, //30 133 -}; - -static struct scsi_host_template pata_gemini_sht = { - ATA_NCQ_SHT(DRV_NAME), - .can_queue = 1, - .sg_tablesize = 128, - .dma_boundary = 0xffffU, -}; - -static void gemini_set_dmamode(struct ata_port *ap, struct ata_device *adev) -{ - void __iomem *clk_reg = ap->ioaddr.bmdma_addr + CLK_MOD_REG; - void __iomem *tim_reg = ap->ioaddr.bmdma_addr + UDMA_TIMING0_REG; - unsigned short udma = adev->dma_mode; - unsigned short speed = udma; - unsigned short devno = adev->devno & 1; - unsigned short i; - u8 mod_udma_mask = 1 << (CLK_MOD_UDMA_DEV0_BIT + devno); - u8 mod_66m_mask = 1 << (CLK_MOD_66M_DEV0_BIT + devno); - u8 clk_mod; - u8 timing; - - clk_mod = ioread8(clk_reg); - clk_mod &= ~mod_udma_mask; - - if (speed & XFER_UDMA_0) { - i = speed & ~XFER_UDMA_0; - timing = TIMING_UDMA[i][0]; - clk_mod |= mod_udma_mask; - if (TIMING_UDMA[i][1]) - clk_mod |= mod_66m_mask; - } else { - i = speed & ~XFER_MW_DMA_0; - timing = TIMING_MW_DMA[i][0]; - clk_mod |= mod_udma_mask; - if (TIMING_MW_DMA[i][1]) - clk_mod |= mod_66m_mask; - } - - iowrite8(clk_mod, clk_reg); - iowrite8(timing, tim_reg + devno); - return; -} - -static void gemini_set_piomode(struct ata_port *ap, struct ata_device *adev) -{ - void __iomem *pio_reg = ap->ioaddr.bmdma_addr + PIO_TIMING_REG; - unsigned int pio = adev->pio_mode - XFER_PIO_0; - - iowrite8(PIO_TIMING[pio], pio_reg); -} - -unsigned int gemini_qc_issue(struct ata_queued_cmd *qc) -{ - ledtrig_ide_activity(); - return ata_bmdma_qc_issue(qc); -} - -static struct ata_port_operations pata_gemini_port_ops = { - .inherits = &ata_bmdma_port_ops, - .set_dmamode = gemini_set_dmamode, - .set_piomode = gemini_set_piomode, - .qc_issue = gemini_qc_issue, -}; - -static struct ata_port_info pata_gemini_portinfo = { - .flags = 0, - .udma_mask = ATA_UDMA6, - .pio_mask = ATA_PIO4, - .port_ops = &pata_gemini_port_ops, -}; - -static const struct ata_port_info *pata_gemini_ports = &pata_gemini_portinfo; - -static int pata_gemini_probe(struct platform_device *pdev) -{ - struct ata_host *host; - struct resource *res; - unsigned int irq, i; - void __iomem *mmio_base; - - /* standard bdma init */ - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - pr_info(DRV_NAME ": irq %d, io base 0x%08x\n", irq, res->start); - - mmio_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - - host = ata_host_alloc_pinfo(&pdev->dev, &pata_gemini_ports, 1); - if (!host) - return -ENOMEM; - - for (i = 0; i < host->n_ports; i++) { - struct ata_port *ap = host->ports[i]; - struct ata_ioports *ioaddr = &ap->ioaddr; - - ioaddr->bmdma_addr = mmio_base; - ioaddr->cmd_addr = mmio_base + 0x20; - ioaddr->ctl_addr = mmio_base + 0x36; - ioaddr->altstatus_addr = ioaddr->ctl_addr; - ata_sff_std_ports(ioaddr); - host->ports[i]->cbl = ATA_CBL_SATA; - } - - return ata_host_activate(host, irq, ata_bmdma_interrupt, - IRQF_SHARED, &pata_gemini_sht); -} - -static int pata_gemini_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct ata_host *host = dev_get_drvdata(dev); - ata_host_detach(host); - return 0; -} - -static struct platform_driver pata_gemini_driver = { - .probe = pata_gemini_probe, - .remove = pata_gemini_remove, - .driver.owner = THIS_MODULE, - .driver.name = DRV_NAME, -}; - -static int __init pata_gemini_module_init(void) -{ - return platform_driver_probe(&pata_gemini_driver, pata_gemini_probe); -} - -static void __exit pata_gemini_module_exit(void) -{ - platform_driver_unregister(&pata_gemini_driver); -} - -module_init(pata_gemini_module_init); -module_exit(pata_gemini_module_exit); |