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path: root/drivers/pcmcia/omap_cf.c
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Diffstat (limited to 'drivers/pcmcia/omap_cf.c')
-rw-r--r--drivers/pcmcia/omap_cf.c98
1 files changed, 50 insertions, 48 deletions
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index 2558c3cc91e..25c4b1993b3 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -11,21 +11,21 @@
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/slab.h>
#include <pcmcia/ss.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
#include <asm/io.h>
#include <asm/sizes.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/tc.h>
+#include <mach/mux.h>
+#include <mach/tc.h>
/* NOTE: don't expect this to support many I/O cards. The 16xx chips have
@@ -39,19 +39,19 @@
#define CF_BASE 0xfffe2800
/* status; read after IRQ */
-#define CF_STATUS_REG __REG16(CF_BASE + 0x00)
+#define CF_STATUS (CF_BASE + 0x00)
# define CF_STATUS_BAD_READ (1 << 2)
# define CF_STATUS_BAD_WRITE (1 << 1)
# define CF_STATUS_CARD_DETECT (1 << 0)
/* which chipselect (CS0..CS3) is used for CF (active low) */
-#define CF_CFG_REG __REG16(CF_BASE + 0x02)
+#define CF_CFG (CF_BASE + 0x02)
/* card reset */
-#define CF_CONTROL_REG __REG16(CF_BASE + 0x04)
+#define CF_CONTROL (CF_BASE + 0x04)
# define CF_CONTROL_RESET (1 << 0)
-#define omap_cf_present() (!(CF_STATUS_REG & CF_STATUS_CARD_DETECT))
+#define omap_cf_present() (!(omap_readw(CF_STATUS) & CF_STATUS_CARD_DETECT))
/*--------------------------------------------------------------------------*/
@@ -67,12 +67,11 @@ struct omap_cf_socket {
struct platform_device *pdev;
unsigned long phys_cf;
u_int irq;
+ struct resource iomem;
};
#define POLL_INTERVAL (2 * HZ)
-#define SZ_2K (2 * SZ_1K)
-
/*--------------------------------------------------------------------------*/
static int omap_cf_ss_init(struct pcmcia_socket *s)
@@ -101,7 +100,7 @@ static void omap_cf_timer(unsigned long _cf)
* claim the card's IRQ. It may also detect some card insertions, but
* not removals; it can't always eliminate timer irqs.
*/
-static irqreturn_t omap_cf_irq(int irq, void *_cf, struct pt_regs *r)
+static irqreturn_t omap_cf_irq(int irq, void *_cf)
{
omap_cf_timer((unsigned long)_cf);
return IRQ_HANDLED;
@@ -112,16 +111,14 @@ static int omap_cf_get_status(struct pcmcia_socket *s, u_int *sp)
if (!sp)
return -EINVAL;
- /* FIXME power management should probably be board-specific:
- * - 3VCARD vs XVCARD (OSK only handles 3VCARD)
- * - POWERON (switched on/off by set_socket)
- */
+ /* NOTE CF is always 3VCARD */
if (omap_cf_present()) {
struct omap_cf_socket *cf;
*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
cf = container_of(s, struct omap_cf_socket, socket);
- s->irq.AssignedIRQ = cf->irq;
+ s->pcmcia_irq = 0;
+ s->pci_irq = cf->irq;
} else
*sp = 0;
return 0;
@@ -132,7 +129,7 @@ omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
{
u16 control;
- /* FIXME some non-OSK boards will support power switching */
+ /* REVISIT some non-OSK boards may support power switching */
switch (s->Vcc) {
case 0:
case 33:
@@ -141,11 +138,11 @@ omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
return -EINVAL;
}
- control = CF_CONTROL_REG;
+ control = omap_readw(CF_CONTROL);
if (s->flags & SS_RESET)
- CF_CONTROL_REG = CF_CONTROL_RESET;
+ omap_writew(CF_CONTROL_RESET, CF_CONTROL);
else
- CF_CONTROL_REG = 0;
+ omap_writew(0, CF_CONTROL);
pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n",
driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);
@@ -155,7 +152,7 @@ omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
static int omap_cf_ss_suspend(struct pcmcia_socket *s)
{
- pr_debug("%s: %s\n", driver_name, __FUNCTION__);
+ pr_debug("%s: %s\n", driver_name, __func__);
return omap_cf_set_socket(s, &dead_socket);
}
@@ -204,24 +201,23 @@ static struct pccard_operations omap_cf_ops = {
* "what chipselect is used". Boards could want more.
*/
-static int __init omap_cf_probe(struct device *dev)
+static int __init omap_cf_probe(struct platform_device *pdev)
{
unsigned seg;
struct omap_cf_socket *cf;
- struct platform_device *pdev = to_platform_device(dev);
int irq;
int status;
- seg = (int) dev->platform_data;
+ seg = (int) pdev->dev.platform_data;
if (seg == 0 || seg > 3)
return -ENODEV;
/* either CFLASH.IREQ (INT_1610_CF) or some GPIO */
irq = platform_get_irq(pdev, 0);
- if (!irq)
+ if (irq < 0)
return -EINVAL;
- cf = kcalloc(1, sizeof *cf, GFP_KERNEL);
+ cf = kzalloc(sizeof *cf, GFP_KERNEL);
if (!cf)
return -ENOMEM;
init_timer(&cf->timer);
@@ -229,10 +225,10 @@ static int __init omap_cf_probe(struct device *dev)
cf->timer.data = (unsigned long) cf;
cf->pdev = pdev;
- dev_set_drvdata(dev, cf);
+ platform_set_drvdata(pdev, cf);
/* this primarily just shuts up irq handling noise */
- status = request_irq(irq, omap_cf_irq, SA_SHIRQ,
+ status = request_irq(irq, omap_cf_irq, IRQF_SHARED,
driver_name, cf);
if (status < 0)
goto fail0;
@@ -253,6 +249,9 @@ static int __init omap_cf_probe(struct device *dev)
default:
goto fail1;
}
+ cf->iomem.start = cf->phys_cf;
+ cf->iomem.end = cf->iomem.end + SZ_8K - 1;
+ cf->iomem.flags = IORESOURCE_MEM;
/* pcmcia layer only remaps "real" memory */
cf->socket.io_offset = (unsigned long)
@@ -270,7 +269,7 @@ static int __init omap_cf_probe(struct device *dev)
omap_cfg_reg(V10_1610_CF_IREQ);
omap_cfg_reg(W10_1610_CF_RESET);
- CF_CFG_REG = ~(1 << seg);
+ omap_writew(~(1 << seg), CF_CFG);
pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
@@ -279,23 +278,25 @@ static int __init omap_cf_probe(struct device *dev)
* CF/PCMCIA variants...
*/
pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", driver_name,
- seg, EMIFS_CCS(seg), EMIFS_ACS(seg));
- EMIFS_CCS(seg) = 0x0004a1b3; /* synch mode 4 etc */
- EMIFS_ACS(seg) = 0x00000000; /* OE hold/setup */
+ seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
+ omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
+ omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
/* CF uses armxor_ck, which is "always" available */
pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
- CF_STATUS_REG, CF_CFG_REG, CF_CONTROL_REG,
+ omap_readw(CF_STATUS), omap_readw(CF_CFG),
+ omap_readw(CF_CONTROL),
omap_cf_present() ? "present" : "(not present)");
cf->socket.owner = THIS_MODULE;
- cf->socket.dev.dev = dev;
+ cf->socket.dev.parent = &pdev->dev;
cf->socket.ops = &omap_cf_ops;
cf->socket.resource_ops = &pccard_static_ops;
cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
| SS_CAP_MEM_ALIGN;
cf->socket.map_size = SZ_2K;
+ cf->socket.io[0].res = &cf->iomem;
status = pcmcia_register_socket(&cf->socket);
if (status < 0)
@@ -306,18 +307,19 @@ static int __init omap_cf_probe(struct device *dev)
return 0;
fail2:
- iounmap((void __iomem *) cf->socket.io_offset);
release_mem_region(cf->phys_cf, SZ_8K);
fail1:
+ if (cf->socket.io_offset)
+ iounmap((void __iomem *) cf->socket.io_offset);
free_irq(irq, cf);
fail0:
kfree(cf);
return status;
}
-static int __devexit omap_cf_remove(struct device *dev)
+static int __exit omap_cf_remove(struct platform_device *pdev)
{
- struct omap_cf_socket *cf = dev_get_drvdata(dev);
+ struct omap_cf_socket *cf = platform_get_drvdata(pdev);
cf->active = 0;
pcmcia_unregister_socket(&cf->socket);
@@ -329,26 +331,25 @@ static int __devexit omap_cf_remove(struct device *dev)
return 0;
}
-static struct device_driver omap_cf_driver = {
- .name = (char *) driver_name,
- .bus = &platform_bus_type,
- .probe = omap_cf_probe,
- .remove = __devexit_p(omap_cf_remove),
- .suspend = pcmcia_socket_dev_suspend,
- .resume = pcmcia_socket_dev_resume,
+static struct platform_driver omap_cf_driver = {
+ .driver = {
+ .name = (char *) driver_name,
+ .owner = THIS_MODULE,
+ },
+ .remove = __exit_p(omap_cf_remove),
};
static int __init omap_cf_init(void)
{
if (cpu_is_omap16xx())
- driver_register(&omap_cf_driver);
- return 0;
+ return platform_driver_probe(&omap_cf_driver, omap_cf_probe);
+ return -ENODEV;
}
static void __exit omap_cf_exit(void)
{
if (cpu_is_omap16xx())
- driver_unregister(&omap_cf_driver);
+ platform_driver_unregister(&omap_cf_driver);
}
module_init(omap_cf_init);
@@ -356,3 +357,4 @@ module_exit(omap_cf_exit);
MODULE_DESCRIPTION("OMAP CF Driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap_cf");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:14:18 +0000