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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>
hifive-unleashed-5.1
Alan Cox 2007-03-07 16:43:29 +00:00 committed by Jeff Garzik
parent 97cb81c335
commit 7938a72db4
1 changed files with 20 additions and 14 deletions
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34
drivers/ata/pata_cmd640.c
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@ -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);
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);
}