mirror of
https://github.com/adulau/aha.git
synced 2024-12-28 11:46:19 +00:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: icside: fix PCB version 6 support (v2) tx4939ide: typo fix and minor cleanup ide: add CS5536 host driver (v3) ide: Force VIA IDE legacy interrupts for AmigaOne boards IDE: Unregister and disable devices if initialization fails. ide: fix ide_register_port() failure handling ide: struct device - replace bus_id with dev_name(), dev_set_name() ide-cd: fix DMA for non bio-backed requests
This commit is contained in:
Linus Torvalds
commit
017f51788f
10 changed files with 371 additions and 16 deletions
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@ -465,6 +465,16 @@ config BLK_DEV_CS5535
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It is safe to say Y to this question.
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config BLK_DEV_CS5536
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tristate "CS5536 chipset support"
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depends on X86_32
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select BLK_DEV_IDEDMA_PCI
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help
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This option enables support for the AMD CS5536
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companion chip used with the Geode LX processor family.
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If unsure, say N.
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config BLK_DEV_HPT366
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tristate "HPT36X/37X chipset support"
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select BLK_DEV_IDEDMA_PCI
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@ -43,6 +43,7 @@ obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o
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obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o
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obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o
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obj-$(CONFIG_BLK_DEV_CS5535) += cs5535.o
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obj-$(CONFIG_BLK_DEV_CS5536) += cs5536.o
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obj-$(CONFIG_BLK_DEV_SC1200) += sc1200.o
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obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o
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obj-$(CONFIG_BLK_DEV_DELKIN) += delkin_cb.o
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308
drivers/ide/cs5536.c
Normal file
308
drivers/ide/cs5536.c
Normal file
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@ -0,0 +1,308 @@
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/*
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* CS5536 PATA support
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* (C) 2007 Martin K. Petersen <mkp@mkp.net>
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* (C) 2009 Bartlomiej Zolnierkiewicz
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Documentation:
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* Available from AMD web site.
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*
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* The IDE timing registers for the CS5536 live in the Geode Machine
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* Specific Register file and not PCI config space. Most BIOSes
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* virtualize the PCI registers so the chip looks like a standard IDE
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* controller. Unfortunately not all implementations get this right.
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* In particular some have problems with unaligned accesses to the
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* virtualized PCI registers. This driver always does full dword
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* writes to work around the issue. Also, in case of a bad BIOS this
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* driver can be loaded with the "msr=1" parameter which forces using
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* the Machine Specific Registers to configure the device.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/ide.h>
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#include <asm/msr.h>
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#define DRV_NAME "cs5536"
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enum {
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MSR_IDE_CFG = 0x51300010,
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PCI_IDE_CFG = 0x40,
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CFG = 0,
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DTC = 2,
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CAST = 3,
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ETC = 4,
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IDE_CFG_CHANEN = (1 << 1),
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IDE_CFG_CABLE = (1 << 17) | (1 << 16),
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IDE_D0_SHIFT = 24,
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IDE_D1_SHIFT = 16,
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IDE_DRV_MASK = 0xff,
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IDE_CAST_D0_SHIFT = 6,
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IDE_CAST_D1_SHIFT = 4,
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IDE_CAST_DRV_MASK = 0x3,
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IDE_CAST_CMD_SHIFT = 24,
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IDE_CAST_CMD_MASK = 0xff,
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IDE_ETC_UDMA_MASK = 0xc0,
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};
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static int use_msr;
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static int cs5536_read(struct pci_dev *pdev, int reg, u32 *val)
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{
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if (unlikely(use_msr)) {
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u32 dummy;
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rdmsr(MSR_IDE_CFG + reg, *val, dummy);
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return 0;
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}
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return pci_read_config_dword(pdev, PCI_IDE_CFG + reg * 4, val);
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}
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static int cs5536_write(struct pci_dev *pdev, int reg, int val)
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{
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if (unlikely(use_msr)) {
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wrmsr(MSR_IDE_CFG + reg, val, 0);
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return 0;
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}
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return pci_write_config_dword(pdev, PCI_IDE_CFG + reg * 4, val);
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}
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static void cs5536_program_dtc(ide_drive_t *drive, u8 tim)
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{
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struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
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int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT;
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u32 dtc;
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cs5536_read(pdev, DTC, &dtc);
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dtc &= ~(IDE_DRV_MASK << dshift);
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dtc |= tim << dshift;
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cs5536_write(pdev, DTC, dtc);
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}
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/**
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* cs5536_cable_detect - detect cable type
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* @hwif: Port to detect on
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*
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* Perform cable detection for ATA66 capable cable.
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*
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* Returns a cable type.
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*/
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static u8 cs5536_cable_detect(ide_hwif_t *hwif)
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{
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struct pci_dev *pdev = to_pci_dev(hwif->dev);
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u32 cfg;
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cs5536_read(pdev, CFG, &cfg);
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if (cfg & IDE_CFG_CABLE)
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return ATA_CBL_PATA80;
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else
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return ATA_CBL_PATA40;
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}
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/**
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* cs5536_set_pio_mode - PIO timing setup
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* @drive: ATA device
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* @pio: PIO mode number
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*/
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static void cs5536_set_pio_mode(ide_drive_t *drive, const u8 pio)
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{
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static const u8 drv_timings[5] = {
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0x98, 0x55, 0x32, 0x21, 0x20,
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};
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static const u8 addr_timings[5] = {
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0x2, 0x1, 0x0, 0x0, 0x0,
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};
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static const u8 cmd_timings[5] = {
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0x99, 0x92, 0x90, 0x22, 0x20,
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};
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struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
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ide_drive_t *pair = ide_get_pair_dev(drive);
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int cshift = (drive->dn & 1) ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT;
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u32 cast;
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u8 cmd_pio = pio;
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if (pair)
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cmd_pio = min(pio, ide_get_best_pio_mode(pair, 255, 4));
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drive->drive_data &= (IDE_DRV_MASK << 8);
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drive->drive_data |= drv_timings[pio];
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cs5536_program_dtc(drive, drv_timings[pio]);
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cs5536_read(pdev, CAST, &cast);
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cast &= ~(IDE_CAST_DRV_MASK << cshift);
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cast |= addr_timings[pio] << cshift;
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cast &= ~(IDE_CAST_CMD_MASK << IDE_CAST_CMD_SHIFT);
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cast |= cmd_timings[cmd_pio] << IDE_CAST_CMD_SHIFT;
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cs5536_write(pdev, CAST, cast);
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}
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/**
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* cs5536_set_dma_mode - DMA timing setup
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* @drive: ATA device
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* @mode: DMA mode
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*/
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static void cs5536_set_dma_mode(ide_drive_t *drive, const u8 mode)
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{
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static const u8 udma_timings[6] = {
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0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6,
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};
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static const u8 mwdma_timings[3] = {
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0x67, 0x21, 0x20,
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};
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struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
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int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT;
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u32 etc;
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cs5536_read(pdev, ETC, &etc);
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if (mode >= XFER_UDMA_0) {
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etc &= ~(IDE_DRV_MASK << dshift);
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etc |= udma_timings[mode - XFER_UDMA_0] << dshift;
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} else { /* MWDMA */
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etc &= ~(IDE_ETC_UDMA_MASK << dshift);
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drive->drive_data &= IDE_DRV_MASK;
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drive->drive_data |= mwdma_timings[mode - XFER_MW_DMA_0] << 8;
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}
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cs5536_write(pdev, ETC, etc);
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}
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static void cs5536_dma_start(ide_drive_t *drive)
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{
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if (drive->current_speed < XFER_UDMA_0 &&
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(drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
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cs5536_program_dtc(drive, drive->drive_data >> 8);
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ide_dma_start(drive);
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}
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static int cs5536_dma_end(ide_drive_t *drive)
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{
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int ret = ide_dma_end(drive);
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if (drive->current_speed < XFER_UDMA_0 &&
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(drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
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cs5536_program_dtc(drive, drive->drive_data & IDE_DRV_MASK);
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return ret;
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}
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static const struct ide_port_ops cs5536_port_ops = {
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.set_pio_mode = cs5536_set_pio_mode,
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.set_dma_mode = cs5536_set_dma_mode,
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.cable_detect = cs5536_cable_detect,
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};
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static const struct ide_dma_ops cs5536_dma_ops = {
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.dma_host_set = ide_dma_host_set,
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.dma_setup = ide_dma_setup,
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.dma_exec_cmd = ide_dma_exec_cmd,
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.dma_start = cs5536_dma_start,
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.dma_end = cs5536_dma_end,
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.dma_test_irq = ide_dma_test_irq,
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.dma_lost_irq = ide_dma_lost_irq,
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.dma_timeout = ide_dma_timeout,
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};
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static const struct ide_port_info cs5536_info = {
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.name = DRV_NAME,
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.port_ops = &cs5536_port_ops,
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.dma_ops = &cs5536_dma_ops,
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.host_flags = IDE_HFLAG_SINGLE,
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.pio_mask = ATA_PIO4,
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA5,
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};
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/**
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* cs5536_init_one
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* @dev: PCI device
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* @id: Entry in match table
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*/
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static int cs5536_init_one(struct pci_dev *dev, const struct pci_device_id *id)
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{
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u32 cfg;
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if (use_msr)
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printk(KERN_INFO DRV_NAME ": Using MSR regs instead of PCI\n");
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cs5536_read(dev, CFG, &cfg);
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if ((cfg & IDE_CFG_CHANEN) == 0) {
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printk(KERN_ERR DRV_NAME ": disabled by BIOS\n");
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return -ENODEV;
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}
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return ide_pci_init_one(dev, &cs5536_info, NULL);
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}
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static const struct pci_device_id cs5536_pci_tbl[] = {
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), },
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{ },
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};
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static struct pci_driver cs5536_pci_driver = {
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.name = DRV_NAME,
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.id_table = cs5536_pci_tbl,
|
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.probe = cs5536_init_one,
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.remove = ide_pci_remove,
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.suspend = ide_pci_suspend,
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||||
.resume = ide_pci_resume,
|
||||
};
|
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|
||||
static int __init cs5536_init(void)
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||||
{
|
||||
return pci_register_driver(&cs5536_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit cs5536_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cs5536_pci_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Martin K. Petersen, Bartlomiej Zolnierkiewicz");
|
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MODULE_DESCRIPTION("low-level driver for the CS5536 IDE controller");
|
||||
MODULE_LICENSE("GPL");
|
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MODULE_DEVICE_TABLE(pci, cs5536_pci_tbl);
|
||||
|
||||
module_param_named(msr, use_msr, int, 0644);
|
||||
MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)");
|
||||
|
||||
module_init(cs5536_init);
|
||||
module_exit(cs5536_exit);
|
||||
|
|
@ -534,7 +534,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
|
|||
d.dma_ops = NULL;
|
||||
}
|
||||
|
||||
ret = ide_host_register(host, NULL, hws);
|
||||
ret = ide_host_register(host, &d, hws);
|
||||
if (ret)
|
||||
goto err_free;
|
||||
|
||||
|
|
|
|||
|
|
@ -282,7 +282,7 @@ static int do_drive_get_GTF(ide_drive_t *drive,
|
|||
port = hwif->channel ? drive->dn - 2: drive->dn;
|
||||
|
||||
DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
|
||||
hwif->name, dev->bus_id, port, hwif->channel);
|
||||
hwif->name, dev_name(dev), port, hwif->channel);
|
||||
|
||||
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) {
|
||||
DEBPRINT("%s drive %d:%d not present\n",
|
||||
|
|
|
|||
|
|
@ -787,6 +787,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
|
|||
if (blk_fs_request(rq)) {
|
||||
ide_end_request(drive, 1, rq->nr_sectors);
|
||||
return ide_stopped;
|
||||
} else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
|
||||
ide_end_request(drive, 1, 1);
|
||||
return ide_stopped;
|
||||
}
|
||||
goto end_request;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -418,11 +418,14 @@ void ide_map_sg(ide_drive_t *drive, struct request *rq)
|
|||
ide_hwif_t *hwif = drive->hwif;
|
||||
struct scatterlist *sg = hwif->sg_table;
|
||||
|
||||
if (rq->cmd_type != REQ_TYPE_ATA_TASKFILE) {
|
||||
hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
|
||||
} else {
|
||||
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
|
||||
sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);
|
||||
hwif->sg_nents = 1;
|
||||
} else if (!rq->bio) {
|
||||
sg_init_one(sg, rq->data, rq->data_len);
|
||||
hwif->sg_nents = 1;
|
||||
} else {
|
||||
hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1467,6 +1467,30 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(ide_host_alloc);
|
||||
|
||||
static void ide_port_free(ide_hwif_t *hwif)
|
||||
{
|
||||
ide_port_free_devices(hwif);
|
||||
ide_free_port_slot(hwif->index);
|
||||
kfree(hwif);
|
||||
}
|
||||
|
||||
static void ide_disable_port(ide_hwif_t *hwif)
|
||||
{
|
||||
struct ide_host *host = hwif->host;
|
||||
int i;
|
||||
|
||||
printk(KERN_INFO "%s: disabling port\n", hwif->name);
|
||||
|
||||
for (i = 0; i < MAX_HOST_PORTS; i++) {
|
||||
if (host->ports[i] == hwif) {
|
||||
host->ports[i] = NULL;
|
||||
host->n_ports--;
|
||||
}
|
||||
}
|
||||
|
||||
ide_port_free(hwif);
|
||||
}
|
||||
|
||||
int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
|
||||
hw_regs_t **hws)
|
||||
{
|
||||
|
|
@ -1507,8 +1531,12 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
|
|||
hwif->present = 1;
|
||||
|
||||
if (hwif->chipset != ide_4drives || !hwif->mate ||
|
||||
!hwif->mate->present)
|
||||
ide_register_port(hwif);
|
||||
!hwif->mate->present) {
|
||||
if (ide_register_port(hwif)) {
|
||||
ide_disable_port(hwif);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (hwif->present)
|
||||
ide_port_tune_devices(hwif);
|
||||
|
|
@ -1521,7 +1549,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
|
|||
if (hwif_init(hwif) == 0) {
|
||||
printk(KERN_INFO "%s: failed to initialize IDE "
|
||||
"interface\n", hwif->name);
|
||||
hwif->present = 0;
|
||||
device_unregister(&hwif->gendev);
|
||||
ide_disable_port(hwif);
|
||||
continue;
|
||||
}
|
||||
|
||||
|
|
@ -1660,12 +1689,8 @@ void ide_host_free(struct ide_host *host)
|
|||
int i;
|
||||
|
||||
ide_host_for_each_port(i, hwif, host) {
|
||||
if (hwif == NULL)
|
||||
continue;
|
||||
|
||||
ide_port_free_devices(hwif);
|
||||
ide_free_port_slot(hwif->index);
|
||||
kfree(hwif);
|
||||
if (hwif)
|
||||
ide_port_free(hwif);
|
||||
}
|
||||
|
||||
kfree(host);
|
||||
|
|
|
|||
|
|
@ -261,9 +261,9 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
|
|||
bcount = cur_len;
|
||||
/*
|
||||
* This workaround for zero count seems required.
|
||||
* (standard ide_build_dmatable do it too)
|
||||
* (standard ide_build_dmatable does it too)
|
||||
*/
|
||||
if ((bcount & 0xffff) == 0x0000)
|
||||
if (bcount == 0x10000)
|
||||
bcount = 0x8000;
|
||||
*table++ = bcount & 0xffff;
|
||||
*table++ = cur_addr;
|
||||
|
|
|
|||
|
|
@ -448,6 +448,11 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
|
|||
d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_AMIGAONE
|
||||
if (machine_is(amigaone))
|
||||
d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
|
||||
#endif
|
||||
|
||||
d.udma_mask = via_config->udma_mask;
|
||||
|
||||
vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
|
||||
|
|
|
|||
Loading…
Reference in a new issue