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[adm5120] fix RB153 CompactFlash driver for .24
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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10428 3c298f89-4303-0410-b956-a3cf2f4a3e73
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juhosg committed Feb 9, 2008
1 parent d63beb8 commit 0f64ffa
Showing 1 changed file with 24 additions and 21 deletions.
45 changes: 24 additions & 21 deletions target/linux/adm5120/files/drivers/ata/pata_rb153_cf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
* A low-level PATA driver to handle a Compact Flash connected on the
* Mikrotik's RouterBoard 153 board.
*
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
* Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on: drivers/ata/pata_ixp4xx_cf.c
* Copyright (C) 2006-07 Tower Technologies
Expand Down Expand Up @@ -32,7 +32,7 @@
#include <asm/gpio.h>

#define DRV_NAME "pata-rb153-cf"
#define DRV_VERSION "0.3.0"
#define DRV_VERSION "0.4.0"
#define DRV_DESC "PATA driver for RouterBOARD 153 Compact Flash"

#define RB153_CF_MAXPORTS 1
Expand All @@ -43,6 +43,7 @@
#define RB153_CF_REG_DATA 0x0C00

struct rb153_cf_info {
unsigned int irq;
void __iomem *iobase;
unsigned int gpio_line;
int frozen;
Expand All @@ -52,12 +53,12 @@ struct rb153_cf_info {

static inline void rb153_pata_finish_io(struct ata_port *ap)
{
struct ata_host *ah = ap->host;
struct rb153_cf_info *info = ap->host->private_data;

ata_altstatus(ap);
ndelay(RB153_CF_IO_DELAY);

set_irq_type(ah->irq, IRQ_TYPE_LEVEL_HIGH);
set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
}

static void rb153_pata_exec_command(struct ata_port *ap,
Expand All @@ -70,7 +71,7 @@ static void rb153_pata_exec_command(struct ata_port *ap,
static void rb153_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
{
void __iomem *ioaddr = adev->ap->ioaddr.data_addr;
void __iomem *ioaddr = adev->link->ap->ioaddr.data_addr;

if (write_data) {
for (; buflen > 0; buflen--, buf++)
Expand All @@ -80,7 +81,7 @@ static void rb153_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
*buf = readb(ioaddr);
}

rb153_pata_finish_io(adev->ap);
rb153_pata_finish_io(adev->link->ap);
}

static void rb153_pata_freeze(struct ata_port *ap)
Expand All @@ -103,11 +104,11 @@ static irqreturn_t rb153_pata_irq_handler(int irq, void *dev_instance)
struct rb153_cf_info *info = ah->private_data;

if (gpio_get_value(info->gpio_line)) {
set_irq_type(ah->irq, IRQ_TYPE_LEVEL_LOW);
set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
if (!info->frozen)
ata_interrupt(irq, dev_instance);
} else {
set_irq_type(ah->irq, IRQ_TYPE_LEVEL_HIGH);
set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
}

return IRQ_HANDLED;
Expand All @@ -123,8 +124,6 @@ static int rb153_pata_port_start(struct ata_port *ap)
}

static struct ata_port_operations rb153_pata_port_ops = {
.port_disable = ata_port_disable,

.tf_load = ata_tf_load,
.tf_read = ata_tf_read,

Expand All @@ -140,6 +139,7 @@ static struct ata_port_operations rb153_pata_port_ops = {
.freeze = rb153_pata_freeze,
.thaw = rb153_pata_thaw,
.error_handler = ata_bmdma_error_handler,
.cable_detect = ata_cable_40wire,

.irq_handler = rb153_pata_irq_handler,
.irq_clear = rb153_pata_irq_clear,
Expand Down Expand Up @@ -171,24 +171,19 @@ static struct scsi_host_template rb153_pata_sht = {

/* ------------------------------------------------------------------------ */

static void rb153_pata_setup_ports(struct ata_host *ah)
static void rb153_pata_setup_port(struct ata_port *ap,
struct rb153_cf_info *info, unsigned long raw_cmd)
{
struct rb153_cf_info *info = ah->private_data;
struct ata_port *ap;

ap = ah->ports[0];

ap->ops = &rb153_pata_port_ops;
ap->pio_mask = 0x1f; /* PIO4 */
ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;

ap->ioaddr.cmd_addr = info->iobase + RB153_CF_REG_CMD;
ap->ioaddr.ctl_addr = info->iobase + RB153_CF_REG_CTRL;
ap->ioaddr.altstatus_addr = info->iobase + RB153_CF_REG_CTRL;

ata_std_ports(&ap->ioaddr);

ap->ioaddr.data_addr = info->iobase + RB153_CF_REG_DATA;

ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", raw_cmd,
raw_cmd + RB153_CF_REG_CTRL);
}

static __devinit int rb153_pata_driver_probe(struct platform_device *pdev)
Expand All @@ -197,6 +192,7 @@ static __devinit int rb153_pata_driver_probe(struct platform_device *pdev)
int gpio;
struct resource *res;
struct ata_host *ah;
struct ata_port *ap;
struct rb153_cf_info *info;
int ret;

Expand Down Expand Up @@ -237,6 +233,7 @@ static __devinit int rb153_pata_driver_probe(struct platform_device *pdev)

ah->private_data = info;
info->gpio_line = gpio;
info->irq = irq;

info->iobase = devm_ioremap_nocache(&pdev->dev, res->start,
res->end - res->start + 1);
Expand All @@ -250,7 +247,13 @@ static __devinit int rb153_pata_driver_probe(struct platform_device *pdev)
goto err_free_gpio;
}

rb153_pata_setup_ports(ah);
ap = ah->ports[0];

ap->ops = &rb153_pata_port_ops;
ap->pio_mask = 0x1f; /* PIO4 */
ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;

rb153_pata_setup_port(ap, info, res->start);

ret = ata_host_activate(ah, irq, rb153_pata_irq_handler,
IRQF_TRIGGER_LOW, &rb153_pata_sht);
Expand Down

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