#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/sizes.h>
-#include <asm/arch/at91rm9200.h>
#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
+#include <asm/arch/at91rm9200_mc.h>
/*
* A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW;
* some other bit in {A24,A22..A11} is nREG to flag memory access
* (vs attributes). So more than 2KB/region would just be waste.
+ * Note: These are offsets from the physical base address.
*/
-#define CF_ATTR_PHYS (AT91_CF_BASE)
-#define CF_IO_PHYS (AT91_CF_BASE + (1 << 23))
-#define CF_MEM_PHYS (AT91_CF_BASE + 0x017ff800)
+#define CF_ATTR_PHYS (0)
+#define CF_IO_PHYS (1 << 23)
+#define CF_MEM_PHYS (0x017ff800)
/*--------------------------------------------------------------------------*/
struct platform_device *pdev;
struct at91_cf_data *board;
+
+ unsigned long phys_baseaddr;
};
#define SZ_2K (2 * SZ_1K)
/*
* Use 16 bit accesses unless/until we need 8-bit i/o space.
- * Always set CSR4 ... PCMCIA won't always unmap things.
*/
- csr = at91_sys_read(AT91_SMC_CSR(4)) & ~AT91_SMC_DBW;
+ csr = at91_sys_read(AT91_SMC_CSR(cf->board->chipselect)) & ~AT91_SMC_DBW;
/*
* NOTE: this CF controller ignores IOIS16, so we can't really do
* some cards only like that way to get at the odd byte, despite
* CF 3.0 spec table 35 also giving the D8-D15 option.
*/
- if (!(io->flags & (MAP_16BIT|MAP_AUTOSZ))) {
+ if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) {
csr |= AT91_SMC_DBW_8;
pr_debug("%s: 8bit i/o bus\n", driver_name);
} else {
csr |= AT91_SMC_DBW_16;
pr_debug("%s: 16bit i/o bus\n", driver_name);
}
- at91_sys_write(AT91_SMC_CSR(4), csr);
+ at91_sys_write(AT91_SMC_CSR(cf->board->chipselect), csr);
io->start = cf->socket.io_offset;
io->stop = io->start + SZ_2K - 1;
cf = container_of(s, struct at91_cf_socket, socket);
- map->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
+ map->flags &= (MAP_ACTIVE | MAP_ATTRIB | MAP_16BIT);
if (map->flags & MAP_ATTRIB)
- map->static_start = CF_ATTR_PHYS;
+ map->static_start = cf->phys_baseaddr + CF_ATTR_PHYS;
else
- map->static_start = CF_MEM_PHYS;
+ map->static_start = cf->phys_baseaddr + CF_MEM_PHYS;
return 0;
}
struct at91_cf_socket *cf;
struct at91_cf_data *board = pdev->dev.platform_data;
struct resource *io;
- unsigned int csa;
int status;
if (!board || !board->det_pin || !board->rst_pin)
if (!io)
return -ENODEV;
- cf = kcalloc(1, sizeof *cf, GFP_KERNEL);
+ cf = kzalloc(sizeof *cf, GFP_KERNEL);
if (!cf)
return -ENOMEM;
cf->board = board;
cf->pdev = pdev;
+ cf->phys_baseaddr = io->start;
platform_set_drvdata(pdev, cf);
- /* CF takes over CS4, CS5, CS6 */
- csa = at91_sys_read(AT91_EBI_CSA);
- at91_sys_write(AT91_EBI_CSA, csa | AT91_EBI_CS4A_SMC_COMPACTFLASH);
-
- /* force poweron defaults for these pins ... */
- (void) at91_set_A_periph(AT91_PIN_PC9, 0); /* A25/CFRNW */
- (void) at91_set_A_periph(AT91_PIN_PC10, 0); /* NCS4/CFCS */
- (void) at91_set_A_periph(AT91_PIN_PC11, 0); /* NCS5/CFCE1 */
- (void) at91_set_A_periph(AT91_PIN_PC12, 0); /* NCS6/CFCE2 */
-
- /* nWAIT is _not_ a default setting */
- (void) at91_set_A_periph(AT91_PIN_PC6, 1); /* nWAIT */
-
- /*
- * Static memory controller timing adjustments.
- * REVISIT: these timings are in terms of MCK cycles, so
- * when MCK changes (cpufreq etc) so must these values...
- */
- at91_sys_write(AT91_SMC_CSR(4),
- AT91_SMC_ACSS_STD
- | AT91_SMC_DBW_16
- | AT91_SMC_BAT
- | AT91_SMC_WSEN
- | AT91_SMC_NWS_(32) /* wait states */
- | AT91_SMC_RWSETUP_(6) /* setup time */
- | AT91_SMC_RWHOLD_(4) /* hold time */
- );
-
/* must be a GPIO; ergo must trigger on both edges */
- status = request_irq(board->det_pin, at91_cf_irq,
- IRQF_SAMPLE_RANDOM, driver_name, cf);
+ status = request_irq(board->det_pin, at91_cf_irq, 0, driver_name, cf);
if (status < 0)
goto fail0;
device_init_wakeup(&pdev->dev, 1);
cf->socket.pci_irq = NR_IRQS + 1;
/* pcmcia layer only remaps "real" memory not iospace */
- cf->socket.io_offset = (unsigned long) ioremap(CF_IO_PHYS, SZ_2K);
- if (!cf->socket.io_offset)
+ cf->socket.io_offset = (unsigned long) ioremap(cf->phys_baseaddr + CF_IO_PHYS, SZ_2K);
+ if (!cf->socket.io_offset) {
+ status = -ENXIO;
goto fail1;
+ }
- /* reserve CS4, CS5, and CS6 regions; but use just CS4 */
+ /* reserve chip-select regions */
if (!request_mem_region(io->start, io->end + 1 - io->start,
- driver_name))
+ driver_name)) {
+ status = -ENXIO;
goto fail1;
+ }
pr_info("%s: irqs det #%d, io #%d\n", driver_name,
board->det_pin, board->irq_pin);
cf->socket.owner = THIS_MODULE;
- cf->socket.dev.dev = &pdev->dev;
+ cf->socket.dev.parent = &pdev->dev;
cf->socket.ops = &at91_cf_ops;
cf->socket.resource_ops = &pccard_static_ops;
cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
return 0;
fail2:
- iounmap((void __iomem *) cf->socket.io_offset);
release_mem_region(io->start, io->end + 1 - io->start);
fail1:
+ if (cf->socket.io_offset)
+ iounmap((void __iomem *) cf->socket.io_offset);
if (board->irq_pin)
free_irq(board->irq_pin, cf);
fail0a:
- free_irq(board->det_pin, cf);
device_init_wakeup(&pdev->dev, 0);
+ free_irq(board->det_pin, cf);
fail0:
- at91_sys_write(AT91_EBI_CSA, csa);
kfree(cf);
return status;
}
struct at91_cf_socket *cf = platform_get_drvdata(pdev);
struct at91_cf_data *board = cf->board;
struct resource *io = cf->socket.io[0].res;
- unsigned int csa;
pcmcia_unregister_socket(&cf->socket);
if (board->irq_pin)
free_irq(board->irq_pin, cf);
- free_irq(board->det_pin, cf);
device_init_wakeup(&pdev->dev, 0);
+ free_irq(board->det_pin, cf);
iounmap((void __iomem *) cf->socket.io_offset);
release_mem_region(io->start, io->end + 1 - io->start);
- csa = at91_sys_read(AT91_EBI_CSA);
- at91_sys_write(AT91_EBI_CSA, csa & ~AT91_EBI_CS4A);
-
kfree(cf);
return 0;
}
struct at91_cf_data *board = cf->board;
pcmcia_socket_dev_suspend(&pdev->dev, mesg);
- if (device_may_wakeup(&pdev->dev))
+ if (device_may_wakeup(&pdev->dev)) {
enable_irq_wake(board->det_pin);
- else {
+ if (board->irq_pin)
+ enable_irq_wake(board->irq_pin);
+ } else {
disable_irq_wake(board->det_pin);
- disable_irq(board->det_pin);
+ if (board->irq_pin)
+ disable_irq_wake(board->irq_pin);
}
- if (board->irq_pin)
- disable_irq(board->irq_pin);
return 0;
}
static int at91_cf_resume(struct platform_device *pdev)
{
- struct at91_cf_socket *cf = platform_get_drvdata(pdev);
- struct at91_cf_data *board = cf->board;
-
- if (board->irq_pin)
- enable_irq(board->irq_pin);
- if (!device_may_wakeup(&pdev->dev))
- enable_irq(board->det_pin);
pcmcia_socket_dev_resume(&pdev->dev);
return 0;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff