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ced3ec8aa7
Prefix messages from IDE PCI host drivers by driver name instead of marketed
chipset name (it is still possible to exactly identify the particular chipset
basing on driver messages).
As a bonus this provides nice code savings for some drivers:
text data bss dec hex filename
3826 112 8 3946 f6a drivers/ide/pci/amd74xx.o.before
2786 112 8 2906 b5a drivers/ide/pci/amd74xx.o.after
764 108 0 872 368 drivers/ide/pci/cs5520.o.before
680 108 0 788 314 drivers/ide/pci/cs5520.o.after
1680 112 4 1796 704 drivers/ide/pci/generic.o.before
1155 112 4 1271 4f7 drivers/ide/pci/generic.o.after
7128 792 0 7920 1ef0 drivers/ide/pci/hpt366.o.before
6984 792 0 7776 1e60 drivers/ide/pci/hpt366.o.after
2800 148 0 2948 b84 drivers/ide/pci/pdc202xx_new.o.before
2523 148 0 2671 a6f drivers/ide/pci/pdc202xx_new.o.after
2831 148 0 2979 ba3 drivers/ide/pci/pdc202xx_old.o.before
2683 148 0 2831 b0f drivers/ide/pci/pdc202xx_old.o.after
3776 112 4 3892 f34 drivers/ide/pci/piix.o.before
2804 112 4 2920 b68 drivers/ide/pci/piix.o.after
4693 116 0 4809 12c9 drivers/ide/pci/siimage.o.before
4600 116 0 4716 126c drivers/ide/pci/siimage.o.after
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
218 lines
6.1 KiB
C
218 lines
6.1 KiB
C
/*
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* Copyright (C) 2004-2005 Advanced Micro Devices, Inc.
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* Copyright (C) 2007 Bartlomiej Zolnierkiewicz
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*
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* History:
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* 09/20/2005 - Jaya Kumar <jayakumar.ide@gmail.com>
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* - Reworked tuneproc, set_drive, misc mods to prep for mainline
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* - Work was sponsored by CIS (M) Sdn Bhd.
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* Ported to Kernel 2.6.11 on June 26, 2005 by
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* Wolfgang Zuleger <wolfgang.zuleger@gmx.de>
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* Alexander Kiausch <alex.kiausch@t-online.de>
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* Originally developed by AMD for 2.4/2.6
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*
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* Development of this chipset driver was funded
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* by the nice folks at National Semiconductor/AMD.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* Documentation:
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* CS5535 documentation available from AMD
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/ide.h>
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#define DRV_NAME "cs5535"
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#define MSR_ATAC_BASE 0x51300000
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#define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0)
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#define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01)
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#define ATAC_GLD_MSR_SMI (MSR_ATAC_BASE+0x02)
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#define ATAC_GLD_MSR_ERROR (MSR_ATAC_BASE+0x03)
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#define ATAC_GLD_MSR_PM (MSR_ATAC_BASE+0x04)
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#define ATAC_GLD_MSR_DIAG (MSR_ATAC_BASE+0x05)
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#define ATAC_IO_BAR (MSR_ATAC_BASE+0x08)
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#define ATAC_RESET (MSR_ATAC_BASE+0x10)
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#define ATAC_CH0D0_PIO (MSR_ATAC_BASE+0x20)
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#define ATAC_CH0D0_DMA (MSR_ATAC_BASE+0x21)
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#define ATAC_CH0D1_PIO (MSR_ATAC_BASE+0x22)
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#define ATAC_CH0D1_DMA (MSR_ATAC_BASE+0x23)
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#define ATAC_PCI_ABRTERR (MSR_ATAC_BASE+0x24)
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#define ATAC_BM0_CMD_PRIM 0x00
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#define ATAC_BM0_STS_PRIM 0x02
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#define ATAC_BM0_PRD 0x04
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#define CS5535_CABLE_DETECT 0x48
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/* Format I PIO settings. We separate out cmd and data for safer timings */
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static unsigned int cs5535_pio_cmd_timings[5] =
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{ 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131 };
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static unsigned int cs5535_pio_dta_timings[5] =
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{ 0xF7F4, 0xF173, 0x8141, 0x5131, 0x1131 };
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static unsigned int cs5535_mwdma_timings[3] =
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{ 0x7F0FFFF3, 0x7F035352, 0x7f024241 };
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static unsigned int cs5535_udma_timings[5] =
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{ 0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061 };
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/* Macros to check if the register is the reset value - reset value is an
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invalid timing and indicates the register has not been set previously */
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#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL) == 0x00009172 )
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#define CS5535_BAD_DMA(timings) ( (timings & 0x000FFFFF) == 0x00077771 )
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/****
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* cs5535_set_speed - Configure the chipset to the new speed
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* @drive: Drive to set up
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* @speed: desired speed
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*
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* cs5535_set_speed() configures the chipset to a new speed.
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*/
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static void cs5535_set_speed(ide_drive_t *drive, const u8 speed)
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{
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u32 reg = 0, dummy;
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int unit = drive->select.b.unit;
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/* Set the PIO timings */
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if (speed < XFER_SW_DMA_0) {
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ide_drive_t *pair = ide_get_paired_drive(drive);
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u8 cmd, pioa;
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cmd = pioa = speed - XFER_PIO_0;
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if (pair->present) {
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u8 piob = ide_get_best_pio_mode(pair, 255, 4);
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if (piob < cmd)
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cmd = piob;
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}
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/* Write the speed of the current drive */
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reg = (cs5535_pio_cmd_timings[cmd] << 16) |
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cs5535_pio_dta_timings[pioa];
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wrmsr(unit ? ATAC_CH0D1_PIO : ATAC_CH0D0_PIO, reg, 0);
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/* And if nessesary - change the speed of the other drive */
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rdmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, dummy);
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if (((reg >> 16) & cs5535_pio_cmd_timings[cmd]) !=
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cs5535_pio_cmd_timings[cmd]) {
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reg &= 0x0000FFFF;
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reg |= cs5535_pio_cmd_timings[cmd] << 16;
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wrmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, 0);
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}
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/* Set bit 31 of the DMA register for PIO format 1 timings */
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rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy);
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wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA,
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reg | 0x80000000UL, 0);
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} else {
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rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy);
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reg &= 0x80000000UL; /* Preserve the PIO format bit */
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if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_4)
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reg |= cs5535_udma_timings[speed - XFER_UDMA_0];
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else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
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reg |= cs5535_mwdma_timings[speed - XFER_MW_DMA_0];
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else
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return;
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wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, 0);
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}
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}
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/**
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* cs5535_set_dma_mode - set host controller for DMA mode
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* @drive: drive
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* @speed: DMA mode
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*
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* Programs the chipset for DMA mode.
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*/
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static void cs5535_set_dma_mode(ide_drive_t *drive, const u8 speed)
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{
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cs5535_set_speed(drive, speed);
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}
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/**
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* cs5535_set_pio_mode - set host controller for PIO mode
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* @drive: drive
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* @pio: PIO mode number
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*
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* A callback from the upper layers for PIO-only tuning.
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*/
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static void cs5535_set_pio_mode(ide_drive_t *drive, const u8 pio)
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{
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cs5535_set_speed(drive, XFER_PIO_0 + pio);
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}
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static u8 __devinit cs5535_cable_detect(ide_hwif_t *hwif)
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{
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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u8 bit;
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/* if a 80 wire cable was detected */
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pci_read_config_byte(dev, CS5535_CABLE_DETECT, &bit);
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return (bit & 1) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
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}
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static const struct ide_port_ops cs5535_port_ops = {
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.set_pio_mode = cs5535_set_pio_mode,
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.set_dma_mode = cs5535_set_dma_mode,
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.cable_detect = cs5535_cable_detect,
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};
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static const struct ide_port_info cs5535_chipset __devinitdata = {
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.name = DRV_NAME,
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.port_ops = &cs5535_port_ops,
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.host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE,
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.pio_mask = ATA_PIO4,
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA4,
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};
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static int __devinit cs5535_init_one(struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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return ide_pci_init_one(dev, &cs5535_chipset, NULL);
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}
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static const struct pci_device_id cs5535_pci_tbl[] = {
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{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_CS5535_IDE), 0 },
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{ 0, },
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};
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MODULE_DEVICE_TABLE(pci, cs5535_pci_tbl);
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static struct pci_driver driver = {
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.name = "CS5535_IDE",
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.id_table = cs5535_pci_tbl,
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.probe = cs5535_init_one,
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.remove = ide_pci_remove,
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};
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static int __init cs5535_ide_init(void)
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{
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return ide_pci_register_driver(&driver);
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}
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static void __exit cs5535_ide_exit(void)
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{
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pci_unregister_driver(&driver);
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}
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module_init(cs5535_ide_init);
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module_exit(cs5535_ide_exit);
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MODULE_AUTHOR("AMD");
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MODULE_DESCRIPTION("PCI driver module for AMD/NS CS5535 IDE");
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MODULE_LICENSE("GPL");
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