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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2007-03-07 16:43:29 +0000 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-04-28 14:15:56 -0400 |
| commit | 7938a72db4d82f3caf3ae22aafa1ea18793a3149 (patch) | |
| tree | 661038cb99e9c35ec46ee1032633497bf975dad8 | |
| parent | 97cb81c335565f3ce27cd26d71480dff0211797a (diff) | |
| download | linux-7938a72db4d82f3caf3ae22aafa1ea18793a3149.tar.bz2 | |
pata_cmd640: Multiple updates
Fix suspend/resume support
Write 0x5B to 0 not 0x5C
The former is important as we must kill the FIFO on a resume
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/ata/pata_cmd640.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c index 4d01d4692412..ab9468d16edb 100644 --- a/drivers/ata/pata_cmd640.c +++ b/drivers/ata/pata_cmd640.c @@ -23,7 +23,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cmd640" -#define DRV_VERSION "0.0.3" +#define DRV_VERSION "0.0.5" struct cmd640_reg { int last; @@ -43,6 +43,7 @@ enum { /** * cmd640_set_piomode - set initial PIO mode data + * @ap: ATA port * @adev: ATA device * * Called to do the PIO mode setup. @@ -106,7 +107,7 @@ static void cmd640_set_piomode(struct ata_port *ap, struct ata_device *adev) pci_write_config_byte(pdev, arttim + 1, (t.active << 4) | t.recover); } else { /* Save the shared timings for channel, they will be loaded - by qc_issue_prot. Reloading the setup time is expensive + by qc_issue_prot. Reloading the setup time is expensive so we keep a merged one loaded */ pci_read_config_byte(pdev, ARTIM23, ®); reg &= 0x3F; @@ -219,29 +220,20 @@ static struct ata_port_operations cmd640_port_ops = { .port_start = cmd640_port_start, }; -static int cmd640_init_one(struct pci_dev *pdev, const struct pci_device_id *id) +static void cmd640_hardware_init(struct pci_dev *pdev) { u8 r; u8 ctrl; - static struct ata_port_info info = { - .sht = &cmd640_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, - .pio_mask = 0x1f, - .port_ops = &cmd640_port_ops - }; - - static struct ata_port_info *port_info[2] = { &info, &info }; - /* CMD640 detected, commiserations */ - pci_write_config_byte(pdev, 0x5C, 0x00); + pci_write_config_byte(pdev, 0x5B, 0x00); /* Get version info */ pci_read_config_byte(pdev, CFR, &r); /* PIO0 command cycles */ pci_write_config_byte(pdev, CMDTIM, 0); /* 512 byte bursts (sector) */ pci_write_config_byte(pdev, BRST, 0x40); - /* + /* * A reporter a long time ago * Had problems with the data fifo * So don't run the risk @@ -255,12 +247,26 @@ static int cmd640_init_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_read_config_byte(pdev, ARTIM23, &ctrl); ctrl |= 0x0C; pci_write_config_byte(pdev, ARTIM23, ctrl); +} + +static int cmd640_init_one(struct pci_dev *pdev, const struct pci_device_id *id) +{ + static struct ata_port_info info = { + .sht = &cmd640_sht, + .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, + .pio_mask = 0x1f, + .port_ops = &cmd640_port_ops + }; + + static struct ata_port_info *port_info[2] = { &info, &info }; + cmd640_hardware_init(pdev); return ata_pci_init_one(pdev, port_info, 2); } static int cmd640_reinit_one(struct pci_dev *pdev) { + cmd640_hardware_init(pdev); return ata_pci_device_resume(pdev); } |