======================================================================*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/init.h>
-#include <linux/config.h>
#include <linux/cpufreq.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
+#include <linux/platform_device.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
+#include <mach/smemc.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
-#include <asm/arch/pxa-regs.h>
+#include <mach/pxa2xx-regs.h>
+#include <asm/mach-types.h>
-#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
-#include <pcmcia/bulkmem.h>
#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
#include "soc_common.h"
#include "pxa2xx_base.h"
+/*
+ * Personal Computer Memory Card International Association (PCMCIA) sockets
+ */
+
+#define PCMCIAPrtSp 0x04000000 /* PCMCIA Partition Space [byte] */
+#define PCMCIASp (4*PCMCIAPrtSp) /* PCMCIA Space [byte] */
+#define PCMCIAIOSp PCMCIAPrtSp /* PCMCIA I/O Space [byte] */
+#define PCMCIAAttrSp PCMCIAPrtSp /* PCMCIA Attribute Space [byte] */
+#define PCMCIAMemSp PCMCIAPrtSp /* PCMCIA Memory Space [byte] */
+
+#define PCMCIA0Sp PCMCIASp /* PCMCIA 0 Space [byte] */
+#define PCMCIA0IOSp PCMCIAIOSp /* PCMCIA 0 I/O Space [byte] */
+#define PCMCIA0AttrSp PCMCIAAttrSp /* PCMCIA 0 Attribute Space [byte] */
+#define PCMCIA0MemSp PCMCIAMemSp /* PCMCIA 0 Memory Space [byte] */
+
+#define PCMCIA1Sp PCMCIASp /* PCMCIA 1 Space [byte] */
+#define PCMCIA1IOSp PCMCIAIOSp /* PCMCIA 1 I/O Space [byte] */
+#define PCMCIA1AttrSp PCMCIAAttrSp /* PCMCIA 1 Attribute Space [byte] */
+#define PCMCIA1MemSp PCMCIAMemSp /* PCMCIA 1 Memory Space [byte] */
+
+#define _PCMCIA(Nb) /* PCMCIA [0..1] */ \
+ (0x20000000 + (Nb) * PCMCIASp)
+#define _PCMCIAIO(Nb) _PCMCIA(Nb) /* PCMCIA I/O [0..1] */
+#define _PCMCIAAttr(Nb) /* PCMCIA Attribute [0..1] */ \
+ (_PCMCIA(Nb) + 2 * PCMCIAPrtSp)
+#define _PCMCIAMem(Nb) /* PCMCIA Memory [0..1] */ \
+ (_PCMCIA(Nb) + 3 * PCMCIAPrtSp)
+
+#define _PCMCIA0 _PCMCIA(0) /* PCMCIA 0 */
+#define _PCMCIA0IO _PCMCIAIO(0) /* PCMCIA 0 I/O */
+#define _PCMCIA0Attr _PCMCIAAttr(0) /* PCMCIA 0 Attribute */
+#define _PCMCIA0Mem _PCMCIAMem(0) /* PCMCIA 0 Memory */
+
+#define _PCMCIA1 _PCMCIA(1) /* PCMCIA 1 */
+#define _PCMCIA1IO _PCMCIAIO(1) /* PCMCIA 1 I/O */
+#define _PCMCIA1Attr _PCMCIAAttr(1) /* PCMCIA 1 Attribute */
+#define _PCMCIA1Mem _PCMCIAMem(1) /* PCMCIA 1 Memory */
+
#define MCXX_SETUP_MASK (0x7f)
#define MCXX_ASST_MASK (0x1f)
u_int mem_clk_10khz)
{
u_int code = pcmcia_cycle_ns * mem_clk_10khz;
- return (code / 300000) + ((code % 300000) ? 1 : 0) - 1;
+ return (code / 300000) + ((code % 300000) ? 1 : 0) + 1;
}
static inline u_int pxa2xx_mcxx_setup(u_int pcmcia_cycle_ns,
static int pxa2xx_pcmcia_set_mcmem( int sock, int speed, int clock )
{
- MCMEM(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+ uint32_t val;
+
+ val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+ __raw_writel(val, MCMEM(sock));
+
return 0;
}
static int pxa2xx_pcmcia_set_mcio( int sock, int speed, int clock )
{
- MCIO(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+ uint32_t val;
+
+ val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+ __raw_writel(val, MCIO(sock));
+
return 0;
}
static int pxa2xx_pcmcia_set_mcatt( int sock, int speed, int clock )
{
- MCATT(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+ uint32_t val;
+
+ val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+ __raw_writel(val, MCATT(sock));
+
return 0;
}
static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
{
- unsigned int clk = get_memclk_frequency_10khz();
- return pxa2xx_pcmcia_set_mcxx(skt, clk);
+ unsigned long clk = clk_get_rate(skt->clk);
+ return pxa2xx_pcmcia_set_mcxx(skt, clk / 10000);
}
#ifdef CONFIG_CPU_FREQ
unsigned long val,
struct cpufreq_freqs *freqs)
{
-#warning "it's not clear if this is right since the core CPU (N) clock has no effect on the memory (L) clock"
switch (val) {
case CPUFREQ_PRECHANGE:
if (freqs->new > freqs->old) {
"pre-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
- pxa2xx_pcmcia_set_mcxx(skt, freqs->new);
+ pxa2xx_pcmcia_set_timing(skt);
}
break;
"post-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
- pxa2xx_pcmcia_set_mcxx(skt, freqs->new);
+ pxa2xx_pcmcia_set_timing(skt);
}
break;
}
}
#endif
-int pxa2xx_drv_pcmcia_probe(struct device *dev)
+void pxa2xx_configure_sockets(struct device *dev)
{
- int ret;
- struct pcmcia_low_level *ops;
- int first, nr;
+ struct pcmcia_low_level *ops = dev->platform_data;
+ /*
+ * We have at least one socket, so set MECR:CIT
+ * (Card Is There)
+ */
+ uint32_t mecr = MECR_CIT;
+
+ /* Set MECR:NOS (Number Of Sockets) */
+ if ((ops->first + ops->nr) > 1 ||
+ machine_is_viper() || machine_is_arcom_zeus())
+ mecr |= MECR_NOS;
+
+ __raw_writel(mecr, MECR);
+}
- if (!dev || !dev->platform_data)
- return -ENODEV;
+static const char *skt_names[] = {
+ "PCMCIA socket 0",
+ "PCMCIA socket 1",
+};
+
+#define SKT_DEV_INFO_SIZE(n) \
+ (sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
- ops = (struct pcmcia_low_level *)dev->platform_data;
- first = ops->first;
- nr = ops->nr;
+int pxa2xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
+{
+ skt->res_skt.start = _PCMCIA(skt->nr);
+ skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
+ skt->res_skt.name = skt_names[skt->nr];
+ skt->res_skt.flags = IORESOURCE_MEM;
+
+ skt->res_io.start = _PCMCIAIO(skt->nr);
+ skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
+ skt->res_io.name = "io";
+ skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+ skt->res_mem.start = _PCMCIAMem(skt->nr);
+ skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
+ skt->res_mem.name = "memory";
+ skt->res_mem.flags = IORESOURCE_MEM;
+
+ skt->res_attr.start = _PCMCIAAttr(skt->nr);
+ skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
+ skt->res_attr.name = "attribute";
+ skt->res_attr.flags = IORESOURCE_MEM;
+
+ return soc_pcmcia_add_one(skt);
+}
+EXPORT_SYMBOL(pxa2xx_drv_pcmcia_add_one);
+void pxa2xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
+{
/* Provide our PXA2xx specific timing routines. */
ops->set_timing = pxa2xx_pcmcia_set_timing;
#ifdef CONFIG_CPU_FREQ
ops->frequency_change = pxa2xx_pcmcia_frequency_change;
#endif
+}
+EXPORT_SYMBOL(pxa2xx_drv_pcmcia_ops);
+
+static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
+{
+ int i, ret = 0;
+ struct pcmcia_low_level *ops;
+ struct skt_dev_info *sinfo;
+ struct soc_pcmcia_socket *skt;
+ struct clk *clk;
+
+ ops = (struct pcmcia_low_level *)dev->dev.platform_data;
+ if (!ops) {
+ ret = -ENODEV;
+ goto err0;
+ }
- ret = soc_common_drv_pcmcia_probe(dev, ops, first, nr);
+ if (cpu_is_pxa320() && ops->nr > 1) {
+ dev_err(&dev->dev, "pxa320 supports only one pcmcia slot");
+ ret = -EINVAL;
+ goto err0;
+ }
+
+ clk = clk_get(&dev->dev, NULL);
+ if (!clk)
+ return -ENODEV;
+
+ pxa2xx_drv_pcmcia_ops(ops);
+
+ sinfo = kzalloc(SKT_DEV_INFO_SIZE(ops->nr), GFP_KERNEL);
+ if (!sinfo) {
+ clk_put(clk);
+ return -ENOMEM;
+ }
- if (ret == 0) {
- /*
- * We have at least one socket, so set MECR:CIT
- * (Card Is There)
- */
- MECR |= MECR_CIT;
+ sinfo->nskt = ops->nr;
+ sinfo->clk = clk;
- /* Set MECR:NOS (Number Of Sockets) */
- if (nr > 1)
- MECR |= MECR_NOS;
- else
- MECR &= ~MECR_NOS;
+ /* Initialize processor specific parameters */
+ for (i = 0; i < ops->nr; i++) {
+ skt = &sinfo->skt[i];
+
+ skt->nr = ops->first + i;
+ skt->clk = clk;
+ skt->ops = ops;
+ skt->socket.owner = ops->owner;
+ skt->socket.dev.parent = &dev->dev;
+ skt->socket.pci_irq = NO_IRQ;
+
+ ret = pxa2xx_drv_pcmcia_add_one(skt);
+ if (ret)
+ goto err1;
+ }
+
+ if (ret) {
+ while (--i >= 0)
+ soc_pcmcia_remove_one(&sinfo->skt[i]);
+ kfree(sinfo);
+ clk_put(clk);
+ } else {
+ pxa2xx_configure_sockets(&dev->dev);
+ dev_set_drvdata(&dev->dev, sinfo);
}
+ return 0;
+
+err1:
+ while (--i >= 0)
+ soc_pcmcia_remove_one(&sinfo->skt[i]);
+ kfree(sinfo);
+err0:
return ret;
}
-EXPORT_SYMBOL(pxa2xx_drv_pcmcia_probe);
-static int pxa2xx_drv_pcmcia_suspend(struct device *dev, pm_message_t state, u32 level)
+static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
{
- int ret = 0;
- if (level == SUSPEND_SAVE_STATE)
- ret = pcmcia_socket_dev_suspend(dev, state);
- return ret;
+ struct skt_dev_info *sinfo = platform_get_drvdata(dev);
+ int i;
+
+ platform_set_drvdata(dev, NULL);
+
+ for (i = 0; i < sinfo->nskt; i++)
+ soc_pcmcia_remove_one(&sinfo->skt[i]);
+
+ clk_put(sinfo->clk);
+ kfree(sinfo);
+ return 0;
}
-static int pxa2xx_drv_pcmcia_resume(struct device *dev, u32 level)
+static int pxa2xx_drv_pcmcia_resume(struct device *dev)
{
- int ret = 0;
- if (level == RESUME_RESTORE_STATE)
- {
- struct pcmcia_low_level *ops = dev->platform_data;
- int nr = ops ? ops->nr : 0;
-
- MECR = nr > 1 ? MECR_CIT | MECR_NOS : (nr > 0 ? MECR_CIT : 0);
- ret = pcmcia_socket_dev_resume(dev);
- }
- return ret;
+ pxa2xx_configure_sockets(dev);
+ return 0;
}
-static struct device_driver pxa2xx_pcmcia_driver = {
+static const struct dev_pm_ops pxa2xx_drv_pcmcia_pm_ops = {
+ .resume = pxa2xx_drv_pcmcia_resume,
+};
+
+static struct platform_driver pxa2xx_pcmcia_driver = {
.probe = pxa2xx_drv_pcmcia_probe,
- .remove = soc_common_drv_pcmcia_remove,
- .suspend = pxa2xx_drv_pcmcia_suspend,
- .resume = pxa2xx_drv_pcmcia_resume,
- .name = "pxa2xx-pcmcia",
- .bus = &platform_bus_type,
+ .remove = pxa2xx_drv_pcmcia_remove,
+ .driver = {
+ .name = "pxa2xx-pcmcia",
+ .owner = THIS_MODULE,
+ .pm = &pxa2xx_drv_pcmcia_pm_ops,
+ },
};
static int __init pxa2xx_pcmcia_init(void)
{
- return driver_register(&pxa2xx_pcmcia_driver);
+ return platform_driver_register(&pxa2xx_pcmcia_driver);
}
static void __exit pxa2xx_pcmcia_exit(void)
{
- driver_unregister(&pxa2xx_pcmcia_driver);
+ platform_driver_unregister(&pxa2xx_pcmcia_driver);
}
-module_init(pxa2xx_pcmcia_init);
+fs_initcall(pxa2xx_pcmcia_init);
module_exit(pxa2xx_pcmcia_exit);
MODULE_AUTHOR("Stefan Eletzhofer <stefan.eletzhofer@inquant.de> and Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: PXA2xx core socket driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");