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-rw-r--r--drivers/pcmcia/Kconfig7
-rw-r--r--drivers/pcmcia/Makefile1
-rw-r--r--drivers/pcmcia/cs.c9
-rw-r--r--drivers/pcmcia/cs_internal.h4
-rw-r--r--drivers/pcmcia/ds.c34
-rw-r--r--drivers/pcmcia/omap_cf.c373
-rw-r--r--drivers/pcmcia/pcmcia_resource.c11
-rw-r--r--drivers/pcmcia/yenta_socket.c47
8 files changed, 442 insertions, 44 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 6485f75d2fb..ddc741e6ecb 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -221,6 +221,13 @@ config PCMCIA_VRC4173
tristate "NEC VRC4173 CARDU support"
depends on CPU_VR41XX && PCI && PCMCIA
+config OMAP_CF
+ tristate "OMAP CompactFlash Controller"
+ depends on PCMCIA && ARCH_OMAP16XX
+ help
+ Say Y here to support the CompactFlash controller on OMAP.
+ Note that this doesn't support "True IDE" mode.
+
config PCCARD_NONSTATIC
tristate
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index ef694c74dfb..a41fbb38fdc 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_M32R_CFC) += m32r_cfc.o
obj-$(CONFIG_PCMCIA_AU1X00) += au1x00_ss.o
obj-$(CONFIG_PCMCIA_VRC4171) += vrc4171_card.o
obj-$(CONFIG_PCMCIA_VRC4173) += vrc4173_cardu.o
+obj-$(CONFIG_OMAP_CF) += omap_cf.o
sa11xx_core-y += soc_common.o sa11xx_base.o
pxa2xx_core-y += soc_common.o pxa2xx_base.o
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index e39178fc59d..fabd3529ceb 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -654,9 +654,10 @@ static int pccardd(void *__skt)
skt->thread = NULL;
complete_and_exit(&skt->thread_done, 0);
}
- complete(&skt->thread_done);
add_wait_queue(&skt->thread_wait, &wait);
+ complete(&skt->thread_done);
+
for (;;) {
unsigned long flags;
unsigned int events;
@@ -682,11 +683,11 @@ static int pccardd(void *__skt)
continue;
}
- schedule();
- try_to_freeze();
-
if (!skt->thread)
break;
+
+ schedule();
+ try_to_freeze();
}
remove_wait_queue(&skt->thread_wait, &wait);
diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h
index 6bbfbd0e02a..55867bc7f19 100644
--- a/drivers/pcmcia/cs_internal.h
+++ b/drivers/pcmcia/cs_internal.h
@@ -17,9 +17,6 @@
#include <linux/config.h>
-#define CLIENT_MAGIC 0x51E6
-typedef struct client_t client_t;
-
/* Flags in client state */
#define CLIENT_CONFIG_LOCKED 0x0001
#define CLIENT_IRQ_REQ 0x0002
@@ -45,7 +42,6 @@ typedef struct region_t {
typedef struct config_t {
u_int state;
u_int Attributes;
- u_int Vcc, Vpp1, Vpp2;
u_int IntType;
u_int ConfigBase;
u_char Status, Pin, Copy, Option, ExtStatus;
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 43da2e92d50..080608c7381 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -354,6 +354,7 @@ static void pcmcia_release_dev(struct device *dev)
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
ds_dbg(1, "releasing dev %p\n", p_dev);
pcmcia_put_socket(p_dev->socket);
+ kfree(p_dev->devname);
kfree(p_dev);
}
@@ -424,9 +425,13 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
{
cistpl_manfid_t manf_id;
cistpl_funcid_t func_id;
- cistpl_vers_1_t vers1;
+ cistpl_vers_1_t *vers1;
unsigned int i;
+ vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL);
+ if (!vers1)
+ return -ENOMEM;
+
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_MANFID, &manf_id)) {
p_dev->manf_id = manf_id.manf;
@@ -443,23 +448,30 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
/* rule of thumb: cards with no FUNCID, but with
* common memory device geometry information, are
* probably memory cards (from pcmcia-cs) */
- cistpl_device_geo_t devgeo;
+ cistpl_device_geo_t *devgeo;
+
+ devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL);
+ if (!devgeo) {
+ kfree(vers1);
+ return -ENOMEM;
+ }
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
- CISTPL_DEVICE_GEO, &devgeo)) {
+ CISTPL_DEVICE_GEO, devgeo)) {
ds_dbg(0, "mem device geometry probably means "
"FUNCID_MEMORY\n");
p_dev->func_id = CISTPL_FUNCID_MEMORY;
p_dev->has_func_id = 1;
}
+ kfree(devgeo);
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1,
- &vers1)) {
- for (i=0; i < vers1.ns; i++) {
+ vers1)) {
+ for (i=0; i < vers1->ns; i++) {
char *tmp;
unsigned int length;
- tmp = vers1.str + vers1.ofs[i];
+ tmp = vers1->str + vers1->ofs[i];
length = strlen(tmp) + 1;
if ((length < 3) || (length > 255))
@@ -475,6 +487,7 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
}
}
+ kfree(vers1);
return 0;
}
@@ -492,6 +505,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f
{
struct pcmcia_device *p_dev;
unsigned long flags;
+ int bus_id_len;
s = pcmcia_get_socket(s);
if (!s)
@@ -515,7 +529,12 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f
p_dev->dev.bus = &pcmcia_bus_type;
p_dev->dev.parent = s->dev.dev;
p_dev->dev.release = pcmcia_release_dev;
- sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
+ bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
+
+ p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
+ if (!p_dev->devname)
+ goto err_free;
+ sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
/* compat */
p_dev->state = CLIENT_UNBOUND;
@@ -540,6 +559,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f
return p_dev;
err_free:
+ kfree(p_dev->devname);
kfree(p_dev);
s->device_count--;
err_put:
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
new file mode 100644
index 00000000000..08d1c928826
--- /dev/null
+++ b/drivers/pcmcia/omap_cf.c
@@ -0,0 +1,373 @@
+/*
+ * omap_cf.c -- OMAP 16xx CompactFlash controller driver
+ *
+ * Copyright (c) 2005 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/sizes.h>
+
+#include <asm/arch/mux.h>
+#include <asm/arch/tc.h>
+
+
+/* NOTE: don't expect this to support many I/O cards. The 16xx chips have
+ * hard-wired timings to support Compact Flash memory cards; they won't work
+ * with various other devices (like WLAN adapters) without some external
+ * logic to help out.
+ *
+ * NOTE: CF controller docs disagree with address space docs as to where
+ * CF_BASE really lives; this is a doc erratum.
+ */
+#define CF_BASE 0xfffe2800
+
+/* status; read after IRQ */
+#define CF_STATUS_REG __REG16(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)
+
+/* card reset */
+#define CF_CONTROL_REG __REG16(CF_BASE + 0x04)
+# define CF_CONTROL_RESET (1 << 0)
+
+#define omap_cf_present() (!(CF_STATUS_REG & CF_STATUS_CARD_DETECT))
+
+/*--------------------------------------------------------------------------*/
+
+static const char driver_name[] = "omap_cf";
+
+struct omap_cf_socket {
+ struct pcmcia_socket socket;
+
+ struct timer_list timer;
+ unsigned present:1;
+ unsigned active:1;
+
+ struct platform_device *pdev;
+ unsigned long phys_cf;
+ u_int irq;
+};
+
+#define POLL_INTERVAL (2 * HZ)
+
+#define SZ_2K (2 * SZ_1K)
+
+/*--------------------------------------------------------------------------*/
+
+static int omap_cf_ss_init(struct pcmcia_socket *s)
+{
+ return 0;
+}
+
+/* the timer is primarily to kick this socket's pccardd */
+static void omap_cf_timer(unsigned long _cf)
+{
+ struct omap_cf_socket *cf = (void *) _cf;
+ unsigned present = omap_cf_present();
+
+ if (present != cf->present) {
+ cf->present = present;
+ pr_debug("%s: card %s\n", driver_name,
+ present ? "present" : "gone");
+ pcmcia_parse_events(&cf->socket, SS_DETECT);
+ }
+
+ if (cf->active)
+ mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
+}
+
+/* This irq handler prevents "irqNNN: nobody cared" messages as drivers
+ * 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)
+{
+ omap_cf_timer((unsigned long)_cf);
+ return IRQ_HANDLED;
+}
+
+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)
+ */
+ 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;
+ } else
+ *sp = 0;
+ return 0;
+}
+
+static int
+omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
+{
+ u16 control;
+
+ /* FIXME some non-OSK boards will support power switching */
+ switch (s->Vcc) {
+ case 0:
+ case 33:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ control = CF_CONTROL_REG;
+ if (s->flags & SS_RESET)
+ CF_CONTROL_REG = CF_CONTROL_RESET;
+ else
+ CF_CONTROL_REG = 0;
+
+ 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);
+
+ return 0;
+}
+
+static int omap_cf_ss_suspend(struct pcmcia_socket *s)
+{
+ pr_debug("%s: %s\n", driver_name, __FUNCTION__);
+ return omap_cf_set_socket(s, &dead_socket);
+}
+
+/* regions are 2K each: mem, attrib, io (and reserved-for-ide) */
+
+static int
+omap_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
+{
+ struct omap_cf_socket *cf;
+
+ cf = container_of(s, struct omap_cf_socket, socket);
+ io->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
+ io->start = cf->phys_cf + SZ_4K;
+ io->stop = io->start + SZ_2K - 1;
+ return 0;
+}
+
+static int
+omap_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map)
+{
+ struct omap_cf_socket *cf;
+
+ if (map->card_start)
+ return -EINVAL;
+ cf = container_of(s, struct omap_cf_socket, socket);
+ map->static_start = cf->phys_cf;
+ map->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
+ if (map->flags & MAP_ATTRIB)
+ map->static_start += SZ_2K;
+ return 0;
+}
+
+static struct pccard_operations omap_cf_ops = {
+ .init = omap_cf_ss_init,
+ .suspend = omap_cf_ss_suspend,
+ .get_status = omap_cf_get_status,
+ .set_socket = omap_cf_set_socket,
+ .set_io_map = omap_cf_set_io_map,
+ .set_mem_map = omap_cf_set_mem_map,
+};
+
+/*--------------------------------------------------------------------------*/
+
+/*
+ * NOTE: right now the only board-specific platform_data is
+ * "what chipselect is used". Boards could want more.
+ */
+
+static int __init omap_cf_probe(struct device *dev)
+{
+ unsigned seg;
+ struct omap_cf_socket *cf;
+ struct platform_device *pdev = to_platform_device(dev);
+ int irq;
+ int status;
+
+ seg = (int) 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)
+ return -EINVAL;
+
+ cf = kcalloc(1, sizeof *cf, GFP_KERNEL);
+ if (!cf)
+ return -ENOMEM;
+ init_timer(&cf->timer);
+ cf->timer.function = omap_cf_timer;
+ cf->timer.data = (unsigned long) cf;
+
+ cf->pdev = pdev;
+ dev_set_drvdata(dev, cf);
+
+ /* this primarily just shuts up irq handling noise */
+ status = request_irq(irq, omap_cf_irq, SA_SHIRQ,
+ driver_name, cf);
+ if (status < 0)
+ goto fail0;
+ cf->irq = irq;
+ cf->socket.pci_irq = irq;
+
+ switch (seg) {
+ /* NOTE: CS0 could be configured too ... */
+ case 1:
+ cf->phys_cf = OMAP_CS1_PHYS;
+ break;
+ case 2:
+ cf->phys_cf = OMAP_CS2_PHYS;
+ break;
+ case 3:
+ cf->phys_cf = omap_cs3_phys();
+ break;
+ default:
+ goto fail1;
+ }
+
+ /* pcmcia layer only remaps "real" memory */
+ cf->socket.io_offset = (unsigned long)
+ ioremap(cf->phys_cf + SZ_4K, SZ_2K);
+ if (!cf->socket.io_offset)
+ goto fail1;
+
+ if (!request_mem_region(cf->phys_cf, SZ_8K, driver_name))
+ goto fail1;
+
+ /* NOTE: CF conflicts with MMC1 */
+ omap_cfg_reg(W11_1610_CF_CD1);
+ omap_cfg_reg(P11_1610_CF_CD2);
+ omap_cfg_reg(R11_1610_CF_IOIS16);
+ omap_cfg_reg(V10_1610_CF_IREQ);
+ omap_cfg_reg(W10_1610_CF_RESET);
+
+ CF_CFG_REG = ~(1 << seg);
+
+ pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
+
+ /* NOTE: better EMIFS setup might support more cards; but the
+ * TRM only shows how to affect regular flash signals, not their
+ * 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 */
+
+ /* 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_cf_present() ? "present" : "(not present)");
+
+ cf->socket.owner = THIS_MODULE;
+ cf->socket.dev.dev = 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;
+
+ status = pcmcia_register_socket(&cf->socket);
+ if (status < 0)
+ goto fail2;
+
+ cf->active = 1;
+ mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
+ return 0;
+
+fail2:
+ iounmap((void __iomem *) cf->socket.io_offset);
+ release_mem_region(cf->phys_cf, SZ_8K);
+fail1:
+ free_irq(irq, cf);
+fail0:
+ kfree(cf);
+ return status;
+}
+
+static int __devexit omap_cf_remove(struct device *dev)
+{
+ struct omap_cf_socket *cf = dev_get_drvdata(dev);
+
+ cf->active = 0;
+ pcmcia_unregister_socket(&cf->socket);
+ del_timer_sync(&cf->timer);
+ iounmap((void __iomem *) cf->socket.io_offset);
+ release_mem_region(cf->phys_cf, SZ_8K);
+ free_irq(cf->irq, cf);
+ kfree(cf);
+ return 0;
+}
+
+static int omap_cf_suspend(struct device *dev, pm_message_t mesg, u32 level)
+{
+ if (level != SUSPEND_SAVE_STATE)
+ return 0;
+ return pcmcia_socket_dev_suspend(dev, mesg);
+}
+
+static int omap_cf_resume(struct device *dev, u32 level)
+{
+ if (level != RESUME_RESTORE_STATE)
+ return 0;
+ return pcmcia_socket_dev_resume(dev);
+}
+
+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 = omap_cf_suspend,
+ .resume = omap_cf_resume,
+};
+
+static int __init omap_cf_init(void)
+{
+ if (cpu_is_omap16xx())
+ driver_register(&omap_cf_driver);
+ return 0;
+}
+
+static void __exit omap_cf_exit(void)
+{
+ if (cpu_is_omap16xx())
+ driver_unregister(&omap_cf_driver);
+}
+
+module_init(omap_cf_init);
+module_exit(omap_cf_exit);
+
+MODULE_DESCRIPTION("OMAP CF Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 599b116d974..89022ad5b52 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -447,7 +447,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
(mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
if (mod->Vpp1 != mod->Vpp2)
return CS_BAD_VPP;
- c->Vpp1 = c->Vpp2 = s->socket.Vpp = mod->Vpp1;
+ s->socket.Vpp = mod->Vpp1;
if (s->ops->set_socket(s, &s->socket))
return CS_BAD_VPP;
} else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
@@ -623,8 +623,6 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
if (s->ops->set_socket(s, &s->socket))
return CS_BAD_VPP;
- c->Vcc = req->Vcc; c->Vpp1 = c->Vpp2 = req->Vpp1;
-
/* Pick memory or I/O card, DMA mode, interrupt */
c->IntType = req->IntType;
c->Attributes = req->Attributes;
@@ -822,7 +820,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) ||
(s->functions > 1) ||
(irq == s->pci_irq)) ? SA_SHIRQ : 0,
- p_dev->dev.bus_id,
+ p_dev->devname,
(req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data);
if (!ret) {
if (!(req->Attributes & IRQ_HANDLE_PRESENT))
@@ -832,7 +830,8 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
}
}
#endif
- if (ret) {
+ /* only assign PCI irq if no IRQ already assigned */
+ if (ret && !s->irq.AssignedIRQ) {
if (!s->pci_irq)
return ret;
irq = s->pci_irq;
@@ -843,7 +842,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) ||
(s->functions > 1) ||
(irq == s->pci_irq)) ? SA_SHIRQ : 0,
- p_dev->dev.bus_id, req->Instance))
+ p_dev->devname, req->Instance))
return CS_IN_USE;
}
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 0347a29f297..f0997c36c9b 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -72,6 +72,7 @@ static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
{
debug("%p %04x %08x\n", socket, reg, val);
writel(val, socket->base + reg);
+ readl(socket->base + reg); /* avoid problems with PCI write posting */
}
static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
@@ -136,6 +137,7 @@ static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val
{
debug("%p %04x %02x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
+ readb(socket->base + 0x800 + reg); /* PCI write posting... */
}
static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
@@ -143,6 +145,10 @@ static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
debug("%p %04x %04x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
writeb(val >> 8, socket->base + 0x800 + reg + 1);
+
+ /* PCI write posting... */
+ readb(socket->base + 0x800 + reg);
+ readb(socket->base + 0x800 + reg + 1);
}
/*
@@ -667,7 +673,7 @@ static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
return 0;
}
-static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
+static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
{
struct resource *root, *res;
struct pci_bus_region region;
@@ -676,7 +682,7 @@ static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned typ
res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
/* Already allocated? */
if (res->parent)
- return;
+ return 0;
/* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
mask = ~0xfff;
@@ -692,7 +698,7 @@ static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned typ
pcibios_bus_to_resource(socket->dev, res, &region);
root = pci_find_parent_resource(socket->dev, res);
if (root && (request_resource(root, res) == 0))
- return;
+ return 0;
printk(KERN_INFO "yenta %s: Preassigned resource %d busy or not available, reconfiguring...\n",
pci_name(socket->dev), nr);
}
@@ -700,35 +706,27 @@ static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned typ
if (type & IORESOURCE_IO) {
if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
- (yenta_search_res(socket, res, BRIDGE_IO_MIN))) {
- config_writel(socket, addr_start, res->start);
- config_writel(socket, addr_end, res->end);
- return;
- }
+ (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
+ return 1;
} else {
if (type & IORESOURCE_PREFETCH) {
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
- (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) {
- config_writel(socket, addr_start, res->start);
- config_writel(socket, addr_end, res->end);
- return;
- }
+ (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
+ return 1;
/* Approximating prefetchable by non-prefetchable */
res->flags = IORESOURCE_MEM;
}
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
- (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) {
- config_writel(socket, addr_start, res->start);
- config_writel(socket, addr_end, res->end);
- return;
- }
+ (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
+ return 1;
}
printk(KERN_INFO "yenta %s: no resource of type %x available, trying to continue...\n",
pci_name(socket->dev), type);
res->start = res->end = res->flags = 0;
+ return 0;
}
/*
@@ -736,14 +734,17 @@ static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned typ
*/
static void yenta_allocate_resources(struct yenta_socket *socket)
{
- yenta_allocate_res(socket, 0, IORESOURCE_IO,
+ int program = 0;
+ program += yenta_allocate_res(socket, 0, IORESOURCE_IO,
PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
- yenta_allocate_res(socket, 1, IORESOURCE_IO,
+ program += yenta_allocate_res(socket, 1, IORESOURCE_IO,
PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
- yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
+ program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH,
PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
- yenta_allocate_res(socket, 3, IORESOURCE_MEM,
+ program += yenta_allocate_res(socket, 3, IORESOURCE_MEM,
PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
+ if (program)
+ pci_setup_cardbus(socket->dev->subordinate);
}
@@ -758,7 +759,7 @@ static void yenta_free_resources(struct yenta_socket *socket)
res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i;
if (res->start != 0 && res->end != 0)
release_resource(res);
- res->start = res->end = 0;
+ res->start = res->end = res->flags = 0;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 20:55:09 +0000